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TABLE OF CONTENTS
Item 8. Consolidated Financial Statements and Supplementary Data
PART IV

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

(Mark One)


þ



ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934




For the fiscal year ended December 31, 20172021


OR


o



TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934




For the transition period fromfrom:             to             

Commission File Number: 001-33723

Main Street Capital Corporation

(Exact name of registrant as specified in its charter)

Maryland
(State or other jurisdiction of
of incorporation or organization)

41-2230745
(I.R.S. Employer
Identification No.)


1300 Post Oak Boulevard, 8th8th Floor
Houston, TX
(Address of principal executive offices)

77056


77056
(Zip Code)

(713) 350-6000

(Registrant'sRegistrant’s telephone number including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class

Trading Symbol

Name of Each Exchange on Which
Registered

Common Stock, par value $0.01 per share

MAIN

New York Stock Exchange

6.125% Notes due 2023New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  Yes o   No þ

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.  Yes o   No þ

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes þ No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes o No o

       Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.    þ

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company or an emerging growth company. See the definitions of "large“large accelerated filer," "accelerated” “accelerated filer," "smaller” “smaller reporting company"company” and "emerging“emerging growth company"company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer þ

Accelerated filer o

Non-accelerated filer o
(do not check if
smaller reporting company)

Smaller reporting company o


Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No þ

The aggregate market value of the registrant'sregistrant’s common stock held by non-affiliates of the registrant as of June 30, 2017,2021, was approximately $2,056.0$1,948.5 million based upon the last sale price for the registrant'sregistrant’s common stock on that date.

The number of shares outstanding common shares of the registrantissuer’s common stock as of February 22, 201825, 2022 was 58,753,792.71,692,388.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrants'registrants’ definitive Proxy Statement for its 20182022 Annual Meeting of Stockholders, to be filed with the Securities and Exchange Commission, are incorporated by reference in this Annual Report on Form 10-K in response to Part III.



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CAUTIONARY STATEMENT CONCERNING FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K contains forward-looking statements regarding the plans and objectives of management for future operations.operations and which relate to future events or our future performance or financial condition. Any such forward-looking statements may involve known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements to be materially different from future results, performance or achievements expressed or implied by any forward-looking statements. Forward-looking statements, which involve assumptions and describe our future plans, strategies and expectations, are generally identifiable by use of the words "may," "will," "should," "expect," "anticipate," "estimate," "believe," "intend"“may,” “will,” “should,” “expect,” “anticipate,” “estimate,” “believe,” “intend” or "project"“project” or the negative of these words or other variations on these words or comparable terminology. These forward-looking statements are based on assumptions that may be incorrect, and we cannot assure you that the projections included in these forward-looking statements will come to pass. Our actual results could differ materially from those expressed or implied by the forward-looking statements as a result of various factors, including, without limitation, the factors discussed in Item 1A entitled "Risk Factors"“Risk Factors” in Part I of this Annual Report on Form 10-K and elsewhere in this Annual Report on Form 10-K.10-K and in other filings we may make with the Securities and Exchange Commission (“SEC”) from time to time. Other factors that could cause actual results to differ materially include changes in the economy and future changes in laws or regulations and conditions in our operating areas.

We have based the forward-looking statements included in this Annual Report on Form 10-K on information available to us on the date of this Annual Report on Form 10-K, and we assume no obligation to update any such forward-looking statements, unless we are required to do so by applicable law. However, you are advised to refer to any additional disclosures that we may make directly to you or through reports that we in the future may file with the Securities and Exchange Commission ("SEC"),SEC, including subsequent annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K.

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PART I

Item 1. BusinessBusiness

ORGANIZATION

Main Street Capital Corporation ("MSCC"(“MSCC”) is a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market ("LMM"(“LMM”) companies and debt capital to middle market ("(“Middle Market"Market”) companies. The portfolio investments of MSCC and its consolidated subsidiaries are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in a variety of industry sectors. MSCC seeks to partner with entrepreneurs, business owners and management teams and generally provides "one stop"“one stop” financing alternatives within its LMM portfolio. MSCC and its consolidated subsidiaries invest primarily in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt investments of Middle Market companies generally headquartered in the United States.

MSCC was formed in March 2007 to operate as an internally managed business development company ("BDC"(“BDC”) under the Investment Company Act of 1940, as amended (the "1940 Act"“1940 Act”). MSCC wholly owns several investment funds, including Main Street Mezzanine Fund, LP ("MSMF"), Main Street Capital II, LP ("MSC II"(“MSMF”) and Main Street Capital III, LP ("(“MSC III"III” and, collectivelytogether with MSMF, and MSC II, the "Funds"“Funds”), and each of their general partners. The Funds are each licensed as a Small Business Investment Company ("SBIC"(“SBIC”) by the United States Small Business Administration ("SBA"(“SBA”). Because MSCC is internally managed, all of the executive officers and other employees are employed by MSCC. Therefore, MSCC does not pay any external investment advisory fees, but instead directly incurs the operating costs associated with employing investment and portfolio management professionals.

MSC Adviser I, LLC (the "External“External Investment Manager"Manager”) was formed in November 2013 as a wholly owned subsidiary of MSCC to provide investment management and other services to parties other than MSCC and its subsidiaries or their portfolio companies ("(“External Parties"Parties”) and receives fee income for such services. MSCC has been granted no-action relief by the SEC to allow the External Investment Manager to


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register as a registered investment adviser under the Investment Advisers Act of 1940, as amended (the "Advisers Act"“Advisers Act”). Since the External Investment Manager conducts all of its investment management activities for External Parties, it is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC'sMSCC’s consolidated financial statements.

MSCC has elected to be treated for U.S. federal income tax purposes as a regulated investment company ("RIC"(“RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"“Code”). As a result, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that it distributes to its stockholders.

MSCC has certain direct and indirect wholly owned subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"“Taxable Subsidiaries”). The primary purpose of the Taxable Subsidiaries is to permit MSCC to hold equity investments in portfolio companies which are "pass-through"“pass-through” entities for tax purposes.

Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our,"“we,” “us,” “our,” the "Company"“Company” and "Main Street"“Main Street” refer to MSCC and its consolidated subsidiaries, which include the Funds and the Taxable Subsidiaries.

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The following diagram depicts our organizational structure:

Main Street Capital Corporation ("MSCC")

100%

100%

100%

Main Mezzanine Management, L.L.C. ("MSMF GP")

Main Street Capital III GP, L.L.C. ("MSC III GP")

Other Holding Companies*

99.6%

0.4%

1%

99%

100%

Main Street Mezzanine Fund, LP ("MSMF")

Main Street Capital III, LP ("MSC III")

MSC Adviser 1, L.L.C. ("External Investment Manager")**


*

Other Holding Companies includes the Taxable Subsidiaries and other entities formed for operational purposes. Each of these companies is directly or indirectly wholly owned by MSCC.

**

The External Investment Manager is accounted for as a portfolio investment at fair value, as opposed to a consolidated subsidiary, and is indirectly wholly owned by MSCC.


*
Each of the Taxable Subsidiaries is directly or indirectly wholly owned by MSCC.

**
The External Investment Manager is accounted for as a portfolio investment at fair value, as opposed to a consolidated subsidiary, and is indirectly wholly owned by MSCC.

CORPORATE INFORMATION

Our principal executive offices are located at 1300 Post Oak Boulevard, 8th Floor, Houston, Texas 77056. We maintain a Web sitewebsite on the Internet atwww.mainstcapital.com. We make available free of charge on our Web sitewebsite our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments to those reports as soon as reasonably practicable after such material is electronically filed with or furnished to the SEC. You may read and copy any materials we file with the SEC at the SEC's Public Reference Room at 100 F Street, NE, Washington, DC 20549. You may obtain information regarding the Public Reference Room by calling the SEC at 1-800-SEC-0330. Information contained on our Web sitewebsite is not incorporated by reference into this Annual Report on Form 10-K, and you should not consider that information to be part of this Annual Report on Form 10-K. Our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments to those reports and other public filings are also available free of charge on the EDGAR Database on the SEC’s website at www.sec.gov.

OVERVIEW OF OUR BUSINESS

Our principal investment objective is to maximize our portfolio'sportfolio’s total return by generating current income from our debt investments and current income and capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. We seek to achieve our investment objective through our LMM, Private Loan, and Middle Market investment strategies. Our LMM investment strategy involves investments in companies that generally have annual revenues between $10 million and $150 million and our LMM portfolio investments generally range in size from $5 million to $50$75 million. Our Middle Market investment strategy involves investments are made in businessescompanies that are generally larger in size than our LMM portfolio companies, with annual


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revenues typically between $150 million and $1.5 billion, and our Middle Market investments generally range in size from $3 million to $20$25 million. Our private loan ("(“Private Loan"Loan”) portfolioinvestment strategy involves investments in companies that are primarily debt securitiesconsistent with the size of the companies in privately held companies which have been originated through strategic relationships with otherour LMM and Middle Market investment funds on a collaborative basis.strategies, and our Private Loan investments are typically similargenerally range in size structure, terms and conditionsfrom $10 million to investments we hold in our LMM portfolio and Middle Market portfolio.$75 million.

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We seek to fill the financing gap for LMM businesses, which, historically, have had limited access to financing from commercial banks and other traditional sources. The underserved nature of the LMM creates the opportunity for us to meet the financing needs of LMM companies while also negotiating favorable transaction terms and equity participations. Our ability to invest across a company'scompany’s capital structure, from secured loans to equity securities, allows us to offer portfolio companies a comprehensive suite of financing options, or a "one stop"“one stop” financing solution. Providing customized, "one stop"“one stop” financing solutions is important to LMM portfolio companies. We generally seek to partner directly with entrepreneurs, management teams and business owners in making our investments. Our LMM portfolio debt investments are generally secured by a first lien on the assets of the portfolio company and typically have a term of between five and seven years from the original investment date.

       Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have an expected duration of between three and seven years from the original investment date.

       Our Private Loan portfolio investments are primarily debt securities in privately held companies whichconsist generally of loans that have been originated directly by us or through strategic relationships with other investment funds on a collaborative basis and are often referred to in the debt markets as "club“club deals." Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio. Our Private Loan portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing syndicated loans or debt securities in privately held companies based in the United States that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by a first priority lien on the assets of the portfolio company and typically have an expected duration of between three and seven years from the original investment date.

Our other portfolio ("(“Other Portfolio"Portfolio”) investments primarily consist of investments whichthat are not consistent with the typical profiles for our LMM, Private Loan or Middle Market or Private Loan portfolio investments, including investments which may be managed by third parties. In our Other Portfolio, we may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds.

Subject to changes in our cash and overall liquidity, our Investment Portfolio (as defined below) may also include short-term portfolio investments that are atypical of our LMM, Middle Market and Private Loan portfolio investments in that they are intended to be a short-term deployment of capital. These assets are typically expected to be liquidated in one year or less and are not expected to be a significant portion of the overall Investment Portfolio.

Our external asset management business is conducted through the External Investment Manager. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. We have entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with HMS Income Fund, Inc. ("HMS Income"). Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities.

Our portfolio investments are generally made through MSCC, the Taxable Subsidiaries and the Funds. MSCC, the Taxable Subsidiaries and the Funds share the same investment strategies and criteria, although they are subject to different regulatory regimes (see "Regulation"“Regulation”). An investor'sinvestor’s return in MSCC will depend, in part, on the Funds'Taxable Subsidiaries’ and the Funds’ investment returns as they are wholly owned subsidiaries of MSCC.

The level of new portfolio investment activity will fluctuate from period to period based upon our view of the current economic fundamentals, our ability to identify new investment opportunities that meet our investment criteria, and our ability to consummate the identified opportunities. The level of new investment activity, and associated interest and fee income, will directly impact future investment income. In addition, the


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level of dividends paid by portfolio companies and the portion of our portfolio debt investments on non-accrual status will directly impact future investment income. While we intend to grow our portfolio and our investment income over the long term, our growth and our operating results may be more limited during depressed economic periods. However, we intend to appropriately manage our cost structure and liquidity position based on applicable economic conditions and our investment outlook. The level of realized gains or losses and unrealized appreciation or depreciation on our investments will also fluctuate depending upon portfolio activity, economic conditions and the performance of our individual portfolio companies. The changes in realized gains and losses and unrealized appreciation or depreciation could have a material impact on our operating results.

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Because we are internally managed, we do not pay any external investment advisory fees, but instead directly incur the operating costs associated with employing investment and portfolio management professionals. We believe that our internally managed structure provides us with a better alignment of interests between our management team and our employees and our shareholders and a beneficial operating expense structure when compared to other publicly traded and privately held investment firms which are externally managed, and our internally managed structure allows us the opportunity to leverage our non-interest operating expenses as we grow our Investment Portfolio.Portfolio (as defined below). For the years ended December 31, 2021 and 2020, the ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total assets was 1.5% and 1.3%, respectively. The ratio of our total operating expenses, including interest expense, as a percentage of our quarterly average total assets was 3.4% and 3.2%, respectively, for the years ended December 31, 2021 and 2020. For further information on our expense ratio refer to Note F to the consolidated financial statements included in “Item 8.– Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K.

       During May 2012,Through the External Investment Manager, we serve as the sole investment adviser and administrator to MSC Income pursuant to an Investment Advisory and Administrative Services Agreement entered into between the External Investment Manager and MSC Income (the “Advisory Agreement”). Under the Advisory Agreement, the External Investment Manager earns a 1.75% annual base management fee and a 20% incentive fee on MSC Income’s pre-investment fee net investment income above a specified hurdle rate in exchange for providing advisory services to MSC Income.

Additionally, the External Investment Manager has entered into an Investment Management Agreement with MS Private Loan Fund I, LP, a private investment sub-advisory agreementfund with HMS Adviser, LP ("HMS Adviser"a strategy to co-invest with Main Street in Private Loan portfolio investments (the “Private Loan Fund”), pursuant to which is the investment advisor to HMS Income, a non-listed BDC, to provide certainExternal Investment Manager provides investment advisory and management services to HMS Adviser. In December 2013, after obtaining required no-action relief from the SECPrivate Loan Fund in exchange for an asset-based fee and certain incentive fees.

The External Investment Manager earns management fees based on the assets of the funds and accounts under management and may earn incentive fees, or a carried interest, based on the performance of the funds and accounts managed. The total contribution of the External Investment Manager to allow us to own a registeredour net investment adviser, we assignedincome consists of the sub-advisory agreementcombination of the expenses allocated to the External Investment Manager sinceand the fees receiveddividend income earned from such arrangement could otherwise have negative consequences on our ability to meet the source-of-income requirement necessary for us to maintain our RIC tax treatment. UnderExternal Investment Manager. For the investment sub-advisory agreement,years ended December 31, 2021, 2020 and 2019, the total contribution of the External Investment Manager is entitled to 50% ofour net investment income was $16.5 million, $9.9 million and $11.7 million, respectively. During the year ended December 31, 2021, the External Investment Manager earned $17.7 million in base management fee income and the$0.6 million in incentive fees earned by HMS Adviser under itscompared to $10.7 million of base management fees and no incentive fees in 2020 and $11.1 million of base management fees and $2.0 million in incentive fees in 2019 for the investment advisory services provided to MSC Income, the Private Loan Fund and other clients.

We have entered into an agreement with HMS Income.the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with MSC Income and its other clients. Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities, and we allocate the related expenses to the External Investment Manager pursuant to the sharing agreement. Our total expenses for the years ended December 31, 2021, 2020 and 2019 are net of expenses allocated to the External Investment Manager of $10.3 million, $7.4 million and $6.7 million, respectively.

       During April 2014, weWe have received an exemptive order from the SEC permitting co-investments among us, MSC Income and other funds and clients advised by us and HMS Incomethe External Investment Manager in certain negotiated transactions where co-investing would otherwise be prohibited under the 1940 Act. We have made co-investments with, and in the future intend to continue to make such co-investments with HMSMSC Income, the Private Loan Fund and other clients advised by the External Investment Manager, in accordance with the conditions of the order. The order requires, among other things, that we and the External Investment Manager consider whether each such investment opportunity is appropriate for HMS Incomeus and the External Investment Manager’s advised clients, as applicable, and if it is appropriate, to propose an allocation of the investment opportunity between us and HMS Income.such parties. Because the External Investment Manager may receive performance-based fee compensation from HMS Income,funds and clients advised by the External Investment Manager, this may provide itthe

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Company and the External Investment Manager an incentive to allocate opportunities to HMS Incomeother participating funds and clients instead of us. However, both we and the External Investment Manager have policies and procedures in place to manage this conflict.conflict, including oversight by the independent members of our Board of Directors.

RECENT DEVELOPMENTS

       During January 2018, we made a new portfolio investment to facilitate the minority recapitalization of Brewer Crane, LLC ("Brewer"), a leading Southern California full-service crane rental service provider. We, along with a co-investor, partnered with Brewer's founder and Chief Executive Officer to facilitate the transaction, with us funding $14.2 million in a combination of first-lien, senior secured term debt and a direct equity investment. Headquartered in Lakeside, California, and founded in 1997, Brewer provides crane rental services to San Diego County and the surrounding Southern California area, offering mobile cranes, tower cranes, skilled operators, construction hoists, hauling, rigging, storage, service and repairs, and miscellaneous equipment rental.

In February 2018,2022, we fully exited our debtdeclared a supplemental cash dividend of $0.075 per share payable in March 2022. This supplemental cash dividend is in addition to the previously announced regular monthly cash dividends that we declared for the first quarter of 2022 of $0.215 per share for each of January, February and equity investments in SoftTouch Medical Holdings, LLC ("SoftTouch"), a leading provider of home medical equipment and services, serving pediatric patients across the states of Georgia and Alabama. SoftTouch provides a broad array of medical equipment and services to chronically ill youth through its diverse product offerings, including respiratory therapy, enteral feeding,


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phototherapy, ventilators, amongst others. We realized a gain of approximately $5.2 million on the exit of our equity investment in SoftTouch.

       In February 2018, we made a new portfolio investment to facilitate the management led buyout of DMS Holdco, LLC. ("DMS"), a leading provider of omni-channel direct marketing services. We, along with a co-investor, partnered with the DMS' management team to facilitate the transaction, with us funding $27.2 million in a combination of first-lien, senior secured term debt and a direct equity investment. Headquartered in Portland, Oregon, and founded in 1982, DMS develops and executes end-to-end, omni-channel direct marketing services including strategy, creative design, direct mail production/fulfillment, and digital marketing to various end markets including the FinTech, banking, telecom and technology industries.

During February 2018,2022, we declared regular monthly dividends of $0.190$0.215 per share for each month of April, May and June 2018.of 2022. These regular monthly dividends equal a total of $0.570$0.645 per share for the second quarter of 2018. The second quarter 20182022, representing a 4.9% increase from the regular monthly dividends represent a 2.7% increase frompaid in the second quarter of 2021. Including the supplemental dividends declared for March 2022 and the regular monthly dividends declared for the first quarter and second quarter of 2017. Including the dividends declared for the second quarter of 2018,2022, we will have paid $22.530$33.540 per share in cumulative dividends since our October 2007 initial public offering.

On February 23, 2022, our Board of Directors unanimously approved the application to the Company of the 150% minimum asset coverage ratio set forth in Section 61(a)(2) of the 1940 Act. As a result, the minimum asset coverage ratio applicable to the Company will be reduced from 200% to 150%, effective as of February 23, 2023, unless approved earlier by a vote of our stockholders, in which case the 150% minimum asset coverage ratio will be effective on the day after such approval. The Board also authorized the submission of a proposal for stockholders to accelerate the application of the 150% minimum asset coverage ratio to the Company at the 2022 Annual Meeting of Stockholders.

BUSINESS STRATEGIES

Our principal investment objective is to maximize our portfolio'sportfolio’s total return by generating current income from our debt investments and current income and capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. We have adopted the following business strategies to achieve our investment objective:

      Deliver Customized Financing Solutions in the Lower Middle Market. We offer LMM portfolio companies customized debt and equity financing solutions that are tailored to the facts and circumstances of each situation. We believe our ability to provide a broad range of customized financing solutions to LMM companies sets us apart from other capital providers that focus on providing a limited number of financing solutions. Our ability to invest across a company's capital structure, from senior secured loans to subordinated debt to equity securities, allows us to offer LMM portfolio companies a comprehensive suite of financing options, or a "one stop" financing solution.

      Focus on Established Companies. We generally invest in companies with established market positions, experienced management teams and proven revenue streams. We believe that those companies generally possess better risk-adjusted return profiles than newer companies that are building their management teams or are in the early stages of building a revenue base. We also believe that established companies in our targeted size range also generally provide opportunities for capital appreciation.

      Leverage the Skills and Experience of Our Investment Team. Our investment team has significant experience in lending to and investing in LMM and Middle Market companies. The members of our investment team have broad investment backgrounds, with prior experience at private investment funds, investment banks and other financial services companies and currently include five certified public accountants and three Chartered Financial Analyst® charter holders. The expertise of our investment team in analyzing, valuing, structuring, negotiating and closing transactions should provide us with competitive advantages by allowing us to consider customized financing solutions and non-traditional or complex structures for our portfolio companies. Also, the reputation of our investment team has and should continue to enable us to generate additional revenue in the form of management and incentive fees in connection with us providing advisory services to other investment funds.

      Invest Across Multiple Companies, Industries, Regions and End Markets. We seek to maintain a portfolio of investments that is appropriately balanced among various companies, industries, geographic regions and end markets. This portfolio balance is intended to mitigate the potential effects of negative economic events for particular companies, regions, industries and end markets.
Deliver Customized Financing Solutions in the Lower Middle Market. We offer LMM portfolio companies customized debt and equity financing solutions that are tailored to the facts and circumstances of each situation. We believe our ability to provide a broad range of customized financing solutions to LMM companies sets us apart from other capital providers that focus on providing a limited number of financing solutions. Our ability to invest across a company’s capital structure, from senior secured loans to subordinated debt to equity securities, allows us to offer LMM portfolio companies a comprehensive suite of financing options, or a “one stop” financing solution.
Focus on Established Companies. We generally invest in companies with established market positions, experienced management teams and proven revenue streams. We believe that those companies generally possess better risk-adjusted return profiles than newer companies that are building their management teams or are in the early stages of building a revenue base. We also believe that established companies in our targeted size range also generally provide opportunities for capital appreciation.
Leverage the Skills and Experience of our Investment Team. Our investment team has significant experience in lending to and investing in LMM and Middle Market companies. The members of our investment team have broad investment backgrounds, with prior experience at private investment funds, investment banks and other financial services companies and currently include six certified public accountants and two Chartered Financial Analyst® charter holders. The expertise of our investment team in analyzing, valuing, structuring, negotiating and closing transactions should provide us with competitive advantages by allowing us to consider customized financing solutions and non-traditional or complex structures for our portfolio companies. Also, the reputation of our investment team has and should continue

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to enable us to generate additional revenue in the form of management and incentive fees in connection with us providing advisory services to other investment funds.
Invest Across Multiple Companies, Industries, Regions and End Markets. We seek to maintain a portfolio of investments that is appropriately balanced among various companies, industries, geographic regions and end markets. This portfolio balance is intended to mitigate the potential effects of negative economic events for particular companies, regions, industries and end markets.
Capitalize on Strong Transaction Sourcing Network. Our investment team seeks to leverage its extensive network of referral sources for portfolio company investments. We have developed a reputation in our marketplace as a responsive, efficient and reliable source of financing, which has created a growing stream of proprietary deal flow for us.
Grow our Asset Management Business. Our asset management business provides us with a recurring source of income, additional income diversification from sources of income directly tied to invested capital and the opportunity for greater stockholder returns through the utilization of our existing investment expertise, strong historical track record and favorable reputation.  We seek to grow our asset management business within our internally managed BDC structure in order to increase the value of this unique benefit to our stakeholders.  We expect such growth to come organically through the expansion of the investment capital that we manage for third parties and the potential extension of our asset management business to new investment strategies, and potentially through mergers and acquisition activities.
Benefit from Lower, Fixed, Long-Term Cost of Capital. The SBIC licenses held by the Funds have allowed them to issue SBA-guaranteed debentures. SBA-guaranteed debentures carry long-term fixed interest rates that are generally lower than interest rates on comparable bank loans and other debt. Because lower-cost SBA leverage is, and will continue to be, a significant part of our capital base through the Funds, our relative cost of debt capital should be lower than many of our competitors. In addition, the SBIC leverage that we receive through the Funds represents a stable, long-term component of our capital structure with proper matching of duration and cost compared to our LMM portfolio investments. We also maintain an investment grade rating from Standard & Poor’s Ratings Services which provides us the opportunity and flexibility to obtain additional, attractive long-term financing options to supplement our capital structure, including the unsecured notes with fixed interest rates we issued in 2017, 2019, 2020 and 2021.

INVESTMENT CRITERIA

Our investment team has identified the following investment criteria that it believes are important in evaluating prospective portfolio companies. Our investment team uses these criteria in evaluating investment opportunities. However, not all of these criteria have been, or will be, met in connection with each of our investments:

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Table of each LMM portfolio company to have meaningful equity ownership in the portfolio company to better align our respective economic interests. We believe management teams with these attributes are more likely to manage the companies in a manner that both protects our debt investment and enhances the value of our equity investment.

Established Companies with Positive Cash Flow. We seek to invest in established companies with sound historical financial performance. We typically focus on LMM companies that have historically generated EBITDA of $3 million to $20 million and commensurate levels of free cash flow. We also pursue investments in debt securities of Middle Market companies that are generally established companies with sound historical financial performance that are generally larger in size than LMM companies. We generally do not invest in start-up companies or companies with speculative business plans.

Defensible Competitive Advantages/Favorable Industry Position. We primarily focus on companies having competitive advantages in their respective markets and/or operating in industries with barriers to entry, which may help to protect their market position and profitability.

Exit Alternatives. We exit our debt investments primarily through the repayment of our investment from internally generated cash flow of the portfolio company and/or a refinancing. In addition, we seek to invest in companies whose business models and expected future cash flows may provide alternate methods of repaying our investment, such as through a strategic acquisition by other industry participants or a recapitalization.
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Defensible Competitive Advantages/Favorable Industry Position. We primarily focus on companies having competitive advantages in their respective markets and/or operating in industries with barriers to entry, which may help to protect their market position and profitability.
Exit Alternatives. We exit our debt investments primarily through the repayment of our investment from internally generated cash flow of the portfolio company and/or a refinancing. In addition, we seek to invest in companies whose business models and expected future cash flows may provide alternate methods of repaying our investment, such as through a strategic acquisition by other industry participants or a recapitalization.

INVESTMENT PORTFOLIO

The Investment Portfolio,“Investment Portfolio”, as used herein, refers to all of our investments in LMM portfolio companies, Private Loan portfolio investments, investments in Middle Market portfolio companies, Private Loan portfolio investments, Other Portfolio investments and theour investment in the External Investment Manager. Our LMM portfolio investments primarily consist of secured debt, equity warrants and direct equity investments and equity warrants in privately held, LMM


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companies based in the United States. Our Private Loan portfolio investments primarily consist of investments in interest-bearing debt securities in companies that are consistent with the size of the companies in our LMM portfolio and Middle Market portfolio, but are investments that we originate directly at Main Street or on a collaborative basis with other investment funds, and are often referred to in the debt markets as “club deals.” Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the companies included in our LMM portfolio. Our Private Loan portfolio investments primarily consist of investments in interest-bearing debt securities in companies that are consistent with the size of companies in our LMM portfolio or our Middle Market portfolio, but are investments that we originate on a collaborative basis with other investment funds, and are often referred to in the debt markets as "club deals." Our Other Portfolio investments primarily consist of investments whichthat are not consistent with the typical profiles for our LMM, Private Loan and Middle Market and Private Loan portfolio investments, including investments which may be managed by third parties. In our Other Portfolio, we may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds.

    Debt Investments

Historically, we have made LMM debt investments principally in the form of single tranche debt. Single tranche debt financing involves issuing one debt security that blends the risk and return profiles of both first lien secured and subordinated debt. We believe that single tranche debt is more appropriate for many LMM companies given their size in order to reduce structural complexity and potential conflicts among creditors.

Our LMM debt investments generally have a term of five to seven years from the original investment date, with limited required amortization prior to maturity, and provide for monthly or quarterly payment of interest at fixed interest rates generally between 10% and 14% per annum, payable currently in cash. In some instances, we have providedInterest rate terms can include either fixed or floating interest rates for our single tranche debt securities.rate terms. In addition, certain LMM debt investments may have a form of interest that is not paid currently but is accrued and added to the loan balance and paid at maturity. We refer to this form of interest as payment-in-kind, or PIK, interest. We typically structure our LMM debt investments with the maximum seniority and collateral that we can reasonably obtain while seeking to achieve our total return target. In most cases, our LMM debt investment will be collateralized by a first priority lien on substantially all the assets of the portfolio company. In addition to seeking a senior lien position in the capital structure of our LMM portfolio companies, we seek to limit the downside potential of our LMM debt investments by negotiating covenants that are designed to protect our LMM debt investments while affording our portfolio companies as much flexibility in managing their businesses as is reasonable. Such restrictions may include affirmative and negative covenants, default penalties, lien protection, change of control or change of management provisions, key-man life insurance, guarantees, equity pledges, personal guaranties, where appropriate, and put rights. In addition, we typically seek board representation or observation rights in all of our LMM portfolio companies. Interest rate terms can include either fixed or floating rate terms.

While we will continue to focus our LMM debt investments primarily on single tranche debt investments, we also anticipate structuring some of our debt investments as mezzanine loans. We anticipateexpect that these mezzanine loans will be primarily junior secured or unsecured, subordinated loans that provide for relatively high fixed interest rates, payable currently in cash, thatand will provide us with significant interest income plusincome. We also anticipate that these mezzanine loans will

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afford us the additional opportunity for income and gains through PIK interest and equity warrants and other similar equity instruments issued in conjunction with these mezzanine loans. These loans typically will have interest-only payments in the early years, with amortization of principal deferred to the later years of the mezzanine loan term. Typically, our mezzanine loans will have maturities of three to five years. We will generally target fixed interest rates of 12% to 14%, payable currently in cash, for our mezzanine loan investments with higher targeted total returns from equity warrants or PIK interest.

Our Private Loan portfolio investments primarily consist of investments in interest-bearing debt securities in companies that are consistent with the size of companies in our LMM portfolio or our Middle Market portfolio, but are investments which have been originated directly by Main Street or through strategic relationships with other investment funds on a collaborative basis. Our Private Loan portfolio debt investments are generally secured by a first priority lien and typically have a term of between three and seven years from the original investment date.

We also pursue debt investments in Middle Market companies. Our Middle Market portfolio investments primarily consist of direct investments or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date. The debt investments in our Middle Market portfolio have rights and protections that are similar to those in our LMM debt investments, which may include affirmative


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and negative covenants, default penalties, lien protection, change of control provisions, guarantees and equity pledges. The Middle Market debt investments generally have floating interest rates at the London Interbank Offered Rate ("LIBOR"(“LIBOR”) plus a margin, and are typically subject to LIBOR floors.

       Our Private Loan portfolio investments primarily consist of investments in interest-bearing debt securities in companies that are consistent with the size of companies in our LMM portfolio or our Middle Market portfolio, but are investments which have been originated through strategic relationships with other investment funds on a collaborative basis. Our Private Loan portfolio debt investments are generally secured by either a first or second priority lien and typically have a term of between three and seven years from the original investment date.Warrants

    Warrants

In connection with our LMM debt investments, we occasionally receive equity warrants to establish or increase our equity interest in the portfolio company. Warrants we receive in connection with a debt investment typically require only a nominal cost to exercise, and thus, as a portfolio company appreciates in value, we may achieve additional investment return from this equity interest. We typically structure the warrants to provide provisions protecting our rights as a minority-interest holder, as well as secured or unsecured put rights, or rights to sell such securities back to the portfolio company, upon the occurrence of specified events. In certain cases, we also may obtain registration rights in connection with these equity interests, which may include demand and "piggyback"“piggyback” registration rights.

    Direct Equity Investments

We also will seek to make direct equity investments in situations where it is appropriate to align our interests with key management and stockholders of our LMM portfolio companies, and to allow for participation in the appreciation in the equity values of our LMM portfolio companies. We usually make our direct equity investments in connection with debt investments in our LMM portfolio companies. In addition, we may have both equity warrants and direct equity positions in some of our LMM portfolio companies. We seek to maintain fully diluted equity positions in our LMM portfolio companies of 5% to 50%, and may have controlling equity interests in some instances. We have a value orientation toward our direct equity investments and have traditionally been able to purchase our equity investments at reasonable valuations.

INVESTMENT PROCESS

Our management team’s investment committee is responsible for all aspects of our LMM investment process.processes. The current members of our investment committee are Dwayne L. Hyzak, our Chief Executive Officer, David Magdol, our President and Chief Investment Officer, and Vincent D. Foster, our ChairmanSenior Advisor and Chief Executive Officer, Dwayne L. Hyzak, our President, Chief Operating Officer and Senior Managing Director, Curtis L. Hartman, our Vice-Chairman, Chief Credit Officer and Senior Managing Director, and David Magdol, our Vice-Chairman, Chief Investment Officer and Senior Managing Director.

       Our credit committee is responsible for all aspects of our Middle Market portfolio investment process. The current members of our credit committee are Messrs. Foster, Hartman, Hyzak and Nicholas T. Meserve, the Managing Director of our Middle Market investment team.

       Investment process responsibility for each Private Loan portfolio investment is delegated to either the investment committee or the credit committee based upon the natureChairman of the investment and the manner in which it was originated. Similarly, theBoard.

The investment processes for eachLMM, Private Loan portfolio investment, from origination to close and to eventual exit, will follow the processes for our LMM portfolio investments or our Middle Market portfolio investments asare outlined below, or a combination thereof.

below. Our investment strategy involves a "team"“team” approach, whereby potential transactions are screened by several members of our investment team before being presented to the investment committee or the credit


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committee, as applicable.committee. Our investment committee and credit committee each meetmeets on an as neededas-needed basis depending on transaction volume. We generally categorize our investment process into seven distinct stages:

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    Deal Generation/Origination

    Deal generation and origination is maximized through long-standing and extensive relationships with industry contacts, brokers, commercial and investment bankers, entrepreneurs, service providers such as lawyers, financial advisors and accountants, and current and former portfolio companies and investors. Our investment team has focused its deal generation and origination efforts on LMM, Private Loan and Middle Market companies,investments, and we have developed a reputation as a knowledgeable, reliable and active source of capital and assistance in these markets.

    During the screening process, if a transaction initially meets our investment criteria, we will perform preliminary due diligence, taking into consideration some or all of the following information:

    a comprehensive financial model based on quantitative analysis of historical financial performance, projections and pro forma adjustments to determine the estimated internal rate of return;
    a brief industry and market analysis;
    direct industry expertise imported from other portfolio companies or investors;
    preliminary qualitative analysis of the management team’s competencies and backgrounds;
    potential investment structures and pricing terms; and
    regulatory compliance.

    Upon successful screening of a proposed LMM transaction, the investment team makes a recommendation to our investment committee. If our investment committee concurs with moving forward on the proposed LMM transaction, we typically issue a non-binding term sheet or letter of intent to the company. Upon successful screening of a proposed Private Loan transaction, the investment team makes a recommendation to our investment committee. If our investment committee concurs with moving forward on the proposed Private Loan transaction, we typically issue a non-binding term sheet to the company. For Middle Market portfolio investments, the initial term sheet is typically issued by the borrower, through the syndicating bank, and is screened by the investment team which makes a recommendation to our creditinvestment committee.

    For proposed LMM transactions, the non-binding term sheet or letter of intent will include the key economic terms based upon our analysis performed during the screening process, as well as a proposed timeline and our qualitative expectation for the transaction. While the term sheet or letter of intent for LMM investments is non-binding, we typically receive an expense deposit in order to move the transaction to the due diligence phase. Upon execution of a term sheet, we begin our formal due diligence process.

    For proposed Private Loan transactions, the non-binding term sheet will include the key economic terms based upon our analysis performed during the screening process, as well as a proposed timeline and our qualitative expectation for the transaction. Upon execution of a term sheet, we begin our formal due diligence process.

    For proposed Middle Market transactions, the initial term sheet will include key economic terms and other conditions proposed by the borrower and its representatives and the proposed timeline for the investment, which are reviewed by our investment team to determine if such terms and conditions are in agreement with our investment objectives.

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    Due Diligence

    Due diligence on a proposed LMM investment is performed by a minimum of twothree of our investment professionals, whom we refer to collectively as the investment team, and certain external resources, who together conduct due diligence to understand the relationships among the prospective portfolio company'scompany’s business plan, operations and financial performance. Our LMM due diligence review includes some or all of the following:

    site visits with management and key personnel;
    detailed review of historical and projected financial statements;
    operational reviews and analysis;
    interviews with customers and suppliers;
    detailed evaluation of company management, including background checks;
    review of material contracts;
    in-depth industry, market and strategy analysis;
    regulatory compliance analysis; and
    review by legal, environmental or other consultants, if applicable.

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    Due diligence on a proposed Private Loan or Middle Market investment is generally performed on materials and information obtained from certain external resources and assessed internally by a minimum of twothree of our investment professionals, who work to understand the relationships among the prospective portfolio company'scompany’s business plan, operations and financial performance using the accumulated due diligence information. Our typical Private Loan and Middle Market due diligence review includes some or all of the following:

    detailed review of historical and projected financial statements;
    site visits or other discussions with management and key personnel;
    in-depth industry, market, operational and strategy analysis;
    regulatory compliance analysis; and
    detailed review of the company’s management team and their capabilities.

    During the due diligence process, significant attention is given to sensitivity analyses and how the company might be expected to perform given downside, base-case and upside scenarios. In certain cases, we may decide not to make an investment based on the results of the diligence process.

    Upon completion of a satisfactory due diligence review of a proposed LMM portfolio investment, the investment team presents the findings and a recommendation to our investment committee. The presentation contains information which can include, but is not limited to, the following:

    company history and overview;

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    transaction overview, history and rationale, including an analysis of transaction strengths and risks;
    analysis of key customers and suppliers and key contracts;
    a working capital analysis;
    an analysis of the company’s business strategy;
    a management and key equity investor background check and assessment;
    third-party accounting, legal, environmental or other due diligence findings;
    investment structure and expected returns;
    anticipated sources of repayment and potential exit strategies;
    pro forma capitalization and ownership;
    an analysis of historical financial results and key financial ratios;
    sensitivities to management’s financial projections;
    regulatory compliance analysis findings; and
    detailed reconciliations of historical to pro forma results.

    Upon completion of a satisfactory due diligence review of a proposed Private Loan or Middle Market portfolio investment, the investment team presents the findings and a recommendation to our creditinvestment committee. The presentation contains information which can include, but is not limited to, the following:

    company history and overview;
    transaction overview, history and rationale, including an analysis of transaction strengths and risks;
    analysis of key customers and suppliers;
    an analysis of the company’s business strategy;
    investment structure and expected returns;
    anticipated sources of repayment and potential exit strategies;
    pro forma capitalization and ownership;
    regulatory compliance analysis findings; and
    an analysis of historical financial results and key financial ratios.

    If any adjustments to the transaction terms or structures are proposed by the investment committee, or credit committee, as applicable, such changes are made and applicable analyses are updated prior to approval of the transaction. Approval for the transaction must be made by the affirmative vote from a majority of the members of the investment committee, or credit committee, as applicable, with the committee

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    member managing the transaction, if any, abstaining from the vote. Upon receipt of transaction approval, wethe investment team will re-confirm regulatory compliance, process and finalize all required legal documents, and fund the investment.

    We continuously monitor the status and progress of the portfolio companies. We generally offer managerial assistance to our portfolio companies, giving them access to our investment experience, direct industry expertise and contacts. The same investment team that was involved in the investment process will continue its involvement in the portfolio company post-investment. This provides for continuity of knowledge and allows the investment team to maintain a strong business relationship with key management of our portfolio companies for post-investment assistance and monitoring purposes.

    As part of the monitoring process of LMM portfolio investments, the investment team will analyze monthly and quarterly financial statements versus the previous periods and year, review financial projections, meet and discuss issues or opportunities with management, attend board meetings and review all compliance certificates and covenants. While we maintain limited involvement in the ordinary course operations of our LMM portfolio companies, we maintain a higher level of involvement in non-ordinary course financing or strategic activities and any non-performing scenarios. We also monitor

    As part of the performancemonitoring process of our Private Loan and Middle Market portfolio investments;investments, the investment team will analyze monthly and quarterly financial statements versus the previous periods and year, review financial projections and review all compliance certificates and covenants. Depending upon the nature of our Private Loan portfolio investments, our investment team may also attend board meetings, and meet and discuss issues or opportunities with the portfolio company’s management team or private equity owners, however, due to the larger size and higher sophistication levelnature of our “lender only” relationship with these Private Loan and Middle Market companies in comparison to our LMM portfolio companies, it is not necessary or practical to have as much direct management interface.

    We utilize an internally developed investment rating system to rate the performance of each LMM portfolio company and to monitor our expected level of returns on each of our LMM investments in relation to our expectations for the portfolio company. The investment rating system takes into consideration various factors, including, but not limited to, each investment'sinvestment’s expected level of returns, the collectability of our debt investments and the ability to receive a return of the invested capital in our equity investments, comparisons to competitors and other industry participants, the portfolio company'scompany’s future outlook and other factors that are deemed to be significant to the portfolio company.


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        Investment Rating 2 represents a LMM portfolio company that, in general, is performing above expectations.

        Investment Rating 3 represents a LMM portfolio company that is generally performing in accordance with expectations.

        Investment Rating 4 represents a LMM portfolio company that is underperforming expectations. Investments with such a rating require increased monitoring and scrutiny by us.

        Investment Rating 5 represents a LMM portfolio company that is significantly underperforming. Investments with such a rating require heightened levels of monitoring and scrutiny by us and involve the recognition of significant unrealized depreciation on such investment.

           All new LMM portfolio investments receive an initial Investment Rating of 3.

      Exit Strategies/Refinancing

    While we generally exit most investments through the refinancing or repayment of our debt and redemption or sale of our equity positions, we typically assist our LMM portfolio companies in developing and planning exit opportunities, including any sale or merger of our portfolio companies. We may also assist in the structure, timing, execution and transition of the exit strategy. The refinancing or repayment of Private Loan investments and Middle Market debt investments typically doesdo not require our assistance due to the additional resources available to these larger Private Loan and Middle Market companies.

    DETERMINATION OF NET ASSET VALUE AND INVESTMENT PORTFOLIO VALUATION PROCESS

    We determine the net asset value per share of our common stock on a quarterly basis. The net asset value per share is equal to our total assets minus total liabilities and any noncontrolling interests outstanding divided by the total number of shares of common stock outstanding.

    We are required to report our investments at fair value. As a result, the most significant determination inherent in the preparation of our consolidated financial statements is the valuation of our Investment Portfolio and the related amounts of unrealized appreciation and depreciation. We follow the provisions of the Financial Accounting Standards Board Accounting Standards Codification ("ASC"(“ASC”) 820,Fair Value Measurements and Disclosures (" (“ASC 820"820”). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the

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    quality of inputs used to measure fair value and enhances disclosure requirements for fair value measurements. ASC 820 requires us to assume that the portfolio investment is to be sold in the principal market to independent market participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable and willing and able to transact.

    We determine in good faith the fair value of our Investment Portfolio pursuant to a valuation policy in accordance with ASC 820 and a valuation process approved by our Board of Directors and in accordance with the 1940 Act. Our valuation policies and processes are intended to provide a consistent basis for determining the fair value of our Investment Portfolio. See "Note“Note B.1. — Valuation of the Investment Portfolio"Portfolio” in the notes to consolidated financial statements for a detailed discussion of our investment portfolio valuation process and procedures.

    Due to the inherent uncertainty in the valuation process, our determination of fair value for our Investment Portfolio may differ materially from the values that would have been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. We determine the fair value of each individual investment and record changes in fair value as unrealized appreciation or depreciation.


    TableThe 1940 Act requires valuation of Contentsa portfolio security at “market value” if market quotations for the security are “readily available.” Portfolio securities for which market quotations are not readily available must be valued at fair value as determined in good faith by the board of directors. In December 2020, the SEC adopted Rule 2a-5 under the 1940 Act, which sets forth the specific requirements for determining fair value in good faith. Specifically, Rule 2a-5, among other things, permits a BDC’s board of directors to designate its executive officers or investment adviser as a valuation designee to determine the fair value for its investment portfolio, subject to the active oversight of the board.

           As described below,Our Board of Directors adopted policies and procedures pursuant to Rule 2a-5 (the “Valuation Procedures”) and designated a group of our executive officers to serve as the Board’s valuation designee thereunder (the “Valuation Committee”) effective April 1, 2021. Pursuant to Valuation Procedures we undertake a multi-step valuation process each quarter in connection with determining the fair value of our investments, with our Board of Directors having final responsibility for overseeing, reviewing and approving, in good faith, our determination of the fair value for our Investment Portfolio andinvestments.

    The following outlines our valuation procedures, consistent with 1940 Act requirements. In addition,process as established under the AuditValuation Procedures:

    Our quarterly valuation process begins with an initial valuation of each portfolio investment performed by the valuation team consisting of several professionals who apply the appropriate valuation methodology depending on the type of investment.
    Each valuation model is then reviewed by the investment team responsible for monitoring the portfolio investment for accuracy, with any recommended changes reviewed by the valuation team.
    Updated valuation conclusions are then reviewed by and discussed with the Valuation Committee at quarterly valuation meetings. Valuation meetings are generally attended by the Valuation Committee, the valuation team, members of investment team responsible for each investment and members of the compliance team. Valuation models and valuation conclusions are adjusted as necessary following such meetings.
    A nationally recognized independent financial advisory services firm analyzes and provides observations, recommendations and an assurance certification regarding the determinations of the fair value for the majority of our portfolio companies on a rotational basis.
    After incorporating commentary by the Valuation Committee and review of recommendations provided by the independent financial advisory services firm, valuation results are finalized and approved by the Valuation Committee.

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    Table of our Board of Directors periodically evaluates the performance and methodologies of the financial advisory services firm that we consult in connection with valuing our LMM and Private Loan portfolio company investments.Contents

    The Board of Directors oversees the valuation process through its Audit Committee in accordance with Rule 2a-5 pursuant to the Valuation Procedures.

    Determination of fair value involves subjective judgments and estimates. The notes to our consolidated financial statements refer to the uncertainty with respect to the possible effect of such valuations, and any change in such valuations, on our financial results and financial condition.

    COMPETITION

    We compete for investments with a number of investment funds (including private equity funds, mezzanine funds, BDCs, and SBICs), as well as traditional financial services companies such as commercial banks and other sources of financing. Many of the entities that compete with us are larger and have more resources available to them. We believe we are able to be competitive with these entities primarily on the basis of our focus toward the underserved LMM, the experience and contacts of our management team, our responsive and efficient investment analysis and decision-making processes, our comprehensive suite of customized financing solutions and the investment terms we offer.

    We believe that some of our competitors make senior secured loans, junior secured loans and subordinated debt investments with interest rates and returns that are comparable to or lower than the rates and returns that we target. Therefore, we do not seek to compete primarily on the interest rates and returns that we offer to potential portfolio companies. For additional information concerning the competitive risks we face, see "Risk“Risk Factors — Risks Related to Our Business and Structure — We may face increasing competition for investment opportunities."

    EMPLOYEESHUMAN CAPITAL

    Our employees are vital to our success as a principal investment firm. As a human-capital intensive business, the long-term success of our company depends on our people. We strive to attract, develop and retain our employees by offering unique employment opportunities, superior advancement and promotion opportunities, attractive compensation and benefit structures and a close-knit culture. The departure of our key investment and other personnel could cause our operating results to suffer.

    Our LMM business segment depends heavily on the business owners and management teams of our portfolio companies and their respective employees, contractors and service providers. In our investment process for LMM portfolio investments, the analysis of these individuals is a critical part of our overall investment underwriting process and as a result we carefully review the qualifications and experience of the portfolio company’s business owners and management team and their employment practices. We strive to partner with business owners and management teams whose business practices reflect our core values.

    We strive to recruit talented and driven individuals who share our values. We have competitive programs dedicated to attracting and retaining new talent and enhancing the skills of our employees. Our recruiting efforts utilize strong relationships with a variety of sources from which we recruit. Among other opportunities, we offer selected students investment analyst internships, which are expected to lead to permanent roles for high performing and high potential interns. Through our internship program, individuals who want to become investment analysts have the opportunity to see the full investment process from origination to closing, as well as post-closing portfolio management activities. We routinely recruit from within, promoting current employees who have shown the technical ability, attitude, interest and the initiative to take on greater responsibility.

    We have designed a compensation structure, including an array of benefit plans and programs, that we believe is attractive to our current and prospective employees. We also offer formal and informal training and mentorship programs that provide employees with access to senior level executives. Through our annual goal setting and performance review processes, our employees are annually evaluated by supervisors and our senior management team to ensure employees continue to develop and advance as expected. We are committed to having a diverse workforce, and an inclusive work environment is a natural extension of our culture. We also maintain a Women’s Initiative that provides employees with opportunities to network internally at Main Street and externally with other women in the financial

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    services industry. Our employees have access to several programs designed to enable our employees to balance work, family and family-related situations including flexible working arrangements and parental leave for birth and adoption placement. We are committed to creating and maintaining an atmosphere where all employees feel welcomed, valued, respected and heard so that they feel motivated and encouraged to contribute fully to their careers, our company and our communities.

    We seek to maintain a close-knit culture, which we believe is an important factor in employee retention, which is reinforced by our Community Building Committee. Our Community Building Committee, which is composed of a substantial cross section of employees across our organization, develops programs and initiatives that promote an open and inclusive atmosphere and encourage employee outreach with our community, in each case based upon feedback received from our employees. Initiatives generated by our Community Building Committee include employee wellbeing and engagement activities along with volunteer and donation opportunities with local charitable organizations. We encourage you to visit our website for more information about charitable organizations receiving our ongoing support. Nothing on our website, however, shall be deemed incorporated by reference into this Annual Report on Form 10-K.

    We monitor and evaluate various turnover and attrition metrics throughout our management team. Our annualized voluntary turnover is relatively low, a record which we attribute to our strong corporate culture, commitment to career development and attractive compensation and benefit programs.

    As of December 31, 2017,2021, we had 58 employees. Theseapproximately 80 employees, include46 of whom we characterize as investment and portfolio management professionals, and the others include operations professionals and administrative staff. None of our employees are represented by a collective bargaining agreement. As necessary, we will hire


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    additional investment professionals and administrative personnel. All but two of our employees are located in our Houston, Texas office.

    REGULATION

      Regulation as a Business Development Company

    We have elected to be regulated as a BDC under the 1940 Act. The 1940 Act contains prohibitions and restrictions relating to transactions between BDCs and their affiliates, principal underwriters and affiliates of those affiliates or underwriters. The 1940 Act requires that a majority of the members of the board of directors of a BDC be persons other than "interested“interested persons," as that term is defined in the 1940 Act. In addition, the 1940 Act provides that we may not change the nature of our business so as to cease to be, or to withdraw our election as, a BDC unless approved by a majority of our outstanding voting securities.

    The 1940 Act defines "a“a majority of the outstanding voting securities"securities” as the lesser of (i) 67% or more of the voting securities present at a meeting if the holders of more than 50% of our outstanding voting securities are present or represented by proxy or (ii) more than 50% of our outstanding voting securities.

      Qualifying Assets

    Under the 1940 Act, a BDC may not acquire any asset other than assets of the type listed in Section 55(a) of the 1940 Act, which are referred to as qualifying assets, unless, at the time the acquisition is made, qualifying assets represent at least 70% of the company'scompany’s total assets. The principal categories of qualifying assets relevant to our business are any of the following:

      (1)
      (1)Securities purchased in transactions not involving any public offering from the issuer of such securities, which issuer (subject to certain limited exceptions) is an eligible portfolio company (as defined below), or from any person who is, or has been during the preceding 13 months, an affiliated person of an eligible portfolio company, or from any other person, subject to such rules as may be prescribed by the SEC.
      (2)Securities of any eligible portfolio company that we control.

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    Table of such securities, which issuer (subject to certain limited exceptions) is an eligible portfolio company (as defined below), or from any person who is, or has been during the preceding 13 months, an affiliated person of an eligible portfolio company, or from any other person, subject to such rules as may be prescribed by the SEC.

    (2)
    Securities of any eligible portfolio company that we control.

    (3)
    Securities purchased in a private transaction from a U.S. issuer that is not an investment company or from an affiliated person of the issuer, or in transactions incident thereto, if the issuer is in bankruptcy and subject to reorganization or if the issuer, immediately prior to the purchase of its securities was unable to meet its obligations as they came due without material assistance other than conventional lending or financing arrangements.

    (4)
    Securities of an eligible portfolio company purchased from any person in a private transaction if there is no ready market for such securities and we already own 60% of the outstanding equity of the eligible portfolio company.

    (5)
    Securities received in exchange for or distributed on or with respect to securities described in (1) through (4) above, or pursuant to the exercise of warrants or rights relating to such securities.

    (6)
    Cash, cash equivalents, U.S. government securities or high-quality debt securities maturing in one year or less from the time of investment.
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    (3)Securities purchased in a private transaction from a U.S. issuer that is not an investment company or from an affiliated person of the issuer, or in transactions incident thereto, if the issuer is in bankruptcy and subject to reorganization or if the issuer, immediately prior to the purchase of its securities was unable to meet its obligations as they came due without material assistance other than conventional lending or financing arrangements.
    (4)Securities of an eligible portfolio company purchased from any person in a private transaction if there is no ready market for such securities and we already own 60% of the outstanding equity of the eligible portfolio company.
    (5)Securities received in exchange for or distributed on or with respect to securities described in (1) through (4) above, or pursuant to the exercise of warrants or rights relating to such securities.
    (6)Cash, cash equivalents, U.S. government securities or high-quality debt securities maturing in one year or less from the time of investment.

    In addition, a BDC must have been organized and have its principal place of business in the United States and must be operated for the purpose of making investments in the types of securities described in (1), (2) or (3) above.

    An eligible portfolio company is defined in the 1940 Act as any issuer which:

    (a)is organized under the laws of, and has its principal place of business in, the United States;
    (b)is not an investment company (other than a small business investment company wholly owned by the BDC) or a company that would be an investment company but for certain exclusions under the 1940 Act; and
    (c)satisfies any of the following:

    (i)does not have any class of securities that is traded on a national securities exchange or has a class of securities listed on a national securities exchange but has an aggregate market value of outstanding voting and non-voting common equity of less than $250 million;
    (ii)is controlled by a BDC or a group of companies including a BDC and the BDC has an affiliated person who is a director of the eligible portfolio company; or
    (iii)is a small and solvent company having total assets of not more than $4 million and capital and surplus of not less than $2 million.

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      (b)
      is not an investment company (other than a small business investment company wholly owned by the BDC) or a company that would be an investment company but for certain exclusions under the 1940 Act; and

      (c)
      satisfies any of the following:

      (i)
      does not have any class of securities that is traded on a national securities exchange or has a class of securities listed on a national securities exchange but has an aggregate market value of outstanding voting and non-voting common equity of less than $250 million;

      (ii)
      is controlled by a BDC or a group of companies including a BDC and the BDC has an affiliated person who is a director of the eligible portfolio company; or

      (iii)
      is a small and solvent company having total assets of not more than $4 million and capital and surplus of not less than $2 million.

      Managerial Assistance to Portfolio Companies

    As noted above, a BDC must be operated for the purpose of making investments in the type of securities described in (1), (2) or (3) above under the heading entitled "—“— Qualifying Assets." In addition, BDCs must generally offer to make available to such issuer of the securities (other than small and solvent companies described above) significant managerial assistance; except that, where we purchase such securities in conjunction with one or more other persons acting together, one of the other persons in the group may make available such managerial assistance. Making available managerial assistance means, among other things, any arrangement whereby the BDC, through its directors, officers or employees, offers to provide, and, if accepted, does so provide, significant guidance and counsel concerning the management, operations or business objectives and policies of a portfolio company.

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      Temporary Investments

      Pending investment in "qualifying“qualifying assets," as described above, our investments may consist of cash, cash equivalents, U.S. government securities and high-quality debt securities maturing in one year or less from time of investment therein, so that 70% of our assets are qualifying assets.

             WeUnder the provisions of the 1940 Act, we are permitted, under specified conditions,as a BDC, to issue multiple classes of debt and one class of stock senior to our common stock ifsecurities only in amounts such that our asset coverage, as defined in the 1940 Act, isequals at least equal to 200% of all debt and/or senior stock immediately after each such issuance. However, 2018 legislation modified the 1940 Act by allowing a BDC to increase the maximum amount of leverage it may incur from an asset coverage ratio of 200% to an asset coverage ratio of 150%, if certain requirements are met. We are permitted to increase our leverage capacity if stockholders representing at least a majority of the votes cast, when quorum is met, approve a proposal to do so. If we receive such stockholder approval, we would be permitted to increase our leverage capacity on the first day after such approval. Alternatively, we may increase the maximum amount of leverage we may incur to an asset coverage ratio of 150% if the “required majority” of our independent directors as defined in Section 57(o) of the 1940 Act approve such increase with such approval becoming effective after one year. On February 23, 2022, our Board of Directors unanimously approved the application of the modified asset coverage requirements set described above. As a result, our asset coverage requirement for senior securities will be changed from 200% to 150%, effective February 23, 2023. The Board has also recommended that a proposal to approve the application of the 150% minimum asset coverage requirement be submitted for approval at our 2022 Annual Meeting of Stockholders. If stockholders approve this proposal, the Company would become subject to the 150% minimum asset coverage ratio the day after the 2022 Annual Meeting of Stockholders.

      We have received exemptive relief from the SEC to permit us to exclude the SBA-guaranteed debentures of the Funds from our 200% asset coverage test under the 1940 Act. As such, our ratio of total consolidated assets to outstanding indebtedness may be less than 200%. This provides us with increased investment flexibility but also increases our risks related to leverage.

      In addition, while any senior securities remain outstanding (other than senior securities representing indebtedness issued in consideration of a privately arranged loan which is not intended to be publicly distributed), we must makegenerally include provisions in the documents governing new senior securities to prohibit any cash distribution to our stockholders or the repurchase of such securities or shares unless we meet the applicable asset coverage ratios at the time of the distribution or repurchase. We may also borrow amounts up to 5% of the value of our total assets for temporary or emergency purposes without regard to asset coverage. For a discussion of the risks associated with leverage, see "Risk“Risk Factors — Risks RelatingRelated to Our Business and Structure,"Leverage,” including, without limitation, "—“— Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us."

             We have previously received an exemptive order from the SEC to exclude debt securities issued by MSMF and any other wholly owned subsidiaries of ours which operate as SBICs from the asset coverage requirements of the 1940 Act as applicable to Main Street. The exemptive order provides for the exclusion of all debt securities issued by the Funds, including the $295.8 million of outstanding debt as of December 31, 2017, issued pursuant to the SBIC program. This exemptive order provides us with expanded capacity and flexibility in obtaining future sources of capital for our investment and operational objectives.


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        Common Stock

      We are not generally able to issue and sell our common stock at a price below net asset value per share. We may, however, sell our common stock, warrants, options or rights to acquire our common stock, at a price below the current net asset value of the common stock if our Board of Directors determines that such sale is in our best interests and that of our stockholders, and our stockholders approve such sale. In any such case, the price at which our securities are to be issued and sold may not be less than a price which, in the determination of our Board of Directors, closely approximates the market value of such securities (less any distributing commission or discount). We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 2017 annual meeting2021 Annual Meeting of stockholdersStockholders, and have not sought such stockholder authorization since 2012, because our common stock price had been trading significantly above the net asset value per share of our common stock since 2011. Our stockholders have previously approved a proposal that authorizes us to issue securities to subscribe to, convert to, or purchase shares of our common stock in one or more offerings. We may also make rights offerings to our stockholders at prices per share less than the net asset value per share, subject to applicable requirements of the 1940 Act. See "Risk“Risk Factors — Risks RelatingRelated to Our Business and Structureour Securities — Stockholders may incur dilution if we sell

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      shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock."

      We have adopted a code of ethics pursuant to Rule 17j-1 under the 1940 Act that establishes procedures for personal investments and restricts certain personal securities transactions. Personnel subject to the code may invest in securities for their personal investment accounts, including securities that may be purchased or held by us, so long as such investments are made in accordance with the code'scode’s requirements. You may read and copy the code of ethics at the SEC's Public Reference Room located at 100 F Street, NE, Washington, DC 20549. You may obtain information on the operation of the Public Reference Room by calling the SEC at 1-800-SEC-0330. In addition, theThe code of ethics is available on the EDGAR Database on the SEC's Web siteSEC’s website athttp://www.sec.gov.www.sec.gov.

      We vote proxies relating to our portfolio securities in a manner in which we believe is consistent with the best interest of our stockholders. We review on a case-by-case basis each proposal submitted to a stockholder vote to determine its impact on the portfolio securities held by us. Although we generally vote against proposals that we expect would have a negative impact on our portfolio securities, we may vote for such a proposal if there exists compelling long-term reasons to do so.

      Our proxy voting decisions are made by the investment team which is responsible for monitoring each of our investments. To ensure that our vote is not the product of a conflict of interest, we require that anyone involved in the decision-making process discloses to our chief compliance officer any potential conflict regarding a proxy vote of which he or she is aware.

      Stockholders may obtain information, without charge, regarding how we voted proxies with respect to our portfolio securities by making a written request for proxy voting information to: Chief Compliance Officer, 1300 Post Oak Boulevard, 8th8th Floor, Houston, Texas 77056.

      We are also prohibited under the 1940 Act from knowingly participating in certain transactions with our affiliates without the prior approval of our Board of Directors who are not interested persons and, in some cases, prior approval by the SEC.

      We are required to provide and maintain a bond issued by a reputable fidelity insurance company to protect us against larceny and embezzlement. Furthermore, as a BDC, we are prohibited from protecting any


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      director or officer against any liability to us or our stockholders arising from willful misfeasance, bad faith, gross negligence or reckless disregard of the duties involved in the conduct of such person'sperson’s office.

      We are required to adopt and implement written policies and procedures reasonably designed to prevent violation of the federal securities laws, review these policies and procedures no less frequently than annually for their adequacy and the effectiveness of their implementation, and to designate a chief compliance officer to be responsible for administering the policies and procedures.

      We may be periodically examined by the SEC for compliance with the 1940 Act.

        Small Business Investment Company Regulations

      Each of the Funds is licensed by the SBA to operate as a SBIC under Section 301(c) of the Small Business Investment Act of 1958. MSMF obtained its SBIC license in 2002 MSC II obtained its license in 2006 and MSC III obtained its license in 2016.

      SBICs are designed to stimulate the flow of private capital to eligible small businesses. Under SBIC regulations, SBICs may make loans to eligible small businesses, invest in the equity securities of such businesses and

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      provide them with consulting and advisory services. Each of the Funds has typically invested in secured debt, acquired warrants and/or made equity investments in qualifying small businesses.

      The Funds are subject to regulation and oversight by the SBA, including requirements with respect to reporting financial information, such as the extent of capital impairment if applicable, on a regular basis and annual examinations conducted by the SBA. The SBA, as a creditor, will have a superior claim to the Funds'Funds’ assets over our stockholderssecurities holders in the event the Funds are liquidated or the SBA exercises its remedies under the SBA-guaranteed debentures issued by the Funds upon an event of default.

             We have received exemptive relief from the SEC to permit us to exclude the SBA-guaranteed debentures of the Funds from our 200% asset coverage test under the 1940 Act. As such, our ratio of total consolidated assets to outstanding indebtedness may be less than 200%. This provides us with increased investment flexibility but also increases our risks related to leverage. See "Item 1A. Risk Factors — Risks related to our business and structure — Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us."

      Under present SBIC regulations, eligible small businesses generally include businesses that (together with their affiliates) have a tangible net worth not exceeding $19.5 million or have average annual net income after U.S. federal income taxes not exceeding $6.5 million (average net income to be computed without benefit of any carryover loss) for the two most recent fiscal years. In addition, an SBIC must devote 25% of its investment activity to "smaller"“smaller” enterprises as defined by the SBA. A smaller enterprise generally includes businesses that have a tangible net worth not exceeding $6 million and have average annual net income after U.S. federal income taxes not exceeding $2 million (average net income to be computed without benefit of any net carryover loss) for the two most recent fiscal years. SBIC regulations also provide alternative size standard criteria to determine eligibility for designation as an eligible small business or smaller enterprise, which criteria depend on the primary industry in which the business is engaged and are based on such factors as the number of employees and gross revenue. However, once an SBIC has invested in a company, it generally may continue to make follow-on investments in the company, regardless of the size of the portfolio company at the time of the follow-on investment, up to the time of the portfolio company'scompany’s initial public offering.

      The SBA prohibits an SBIC from providing funds to small businesses for certain purposes, such as relending and investment outside the United States, to businesses engaged in certain prohibited industries, and to certain "passive"“passive” (non-operating) companies. In addition, without prior SBA approval, an SBIC may not invest an amount equal to more than approximately 30% of the SBIC'sSBIC’s regulatory capital, as defined by the SBA, in any one portfolio company and its affiliates.


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      The SBA places certain limitations on the financing terms of investments by SBICs in portfolio companies (such as limiting the permissible interest rate on debt securities held by an SBIC in a portfolio company). Included in such limitations are SBASBIC regulations which allow an SBIC to exercise control over a small business for a period of seven years from the date on which the SBIC initially acquires its control position. This control period may be extended for an additional period of time with the SBA'sSBA’s prior written approval.

      The SBA restricts the ability of an SBIC to lend money to any of its officers, directors and employees or to invest in affiliates thereof. The SBA also prohibits, without prior SBA approval, a "change“change of control"control” of an SBIC or transfers that would result in any person (or a group of persons acting in concert) owning 10% or more of a class of equity of a licensed SBIC. A "change“change of control"control” is any event which would result in the transfer of the power, direct or indirect, to direct the management and policies of an SBIC, whether through ownership, contractual arrangements or otherwise.

      The SBIC licenses allow the Funds to incur leverage by issuing SBA-guaranteed debentures, subject to the issuance of a capital commitment and certain approvals by the SBA and customary procedures. SBA-guaranteed debentures carry long-term fixed rates that are generally lower than rates on comparable bank and other debt. Under applicable regulations, an SBIC may generally have outstanding debentures guaranteed by the SBA in amounts up to twice the amount of the privately-raisedprivately raised funds of the SBIC. Debentures guaranteed by the SBA have a maturity of ten years, require semiannual payments of interest, do not require any principal payments prior to maturity, and are not subject to prepayment penalties. As of December 31, 2017,2021, we, through the Funds, had $295.8$350.0 million of outstanding SBA-guaranteed debentures, which had an annual weighted-average interest rate of approximately 3.6%2.9%.

      SBICs must invest idle funds that are not being used to make loans in investments permitted under SBIC regulations in the following limited types of securities: (i) direct obligations of, or obligations guaranteed as to principal and interest by, the United States government, which mature within 15 months from the date of the investment; (ii) repurchase agreements with federally insured institutions with a maturity of seven days or less (and the securities

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      underlying the repurchase obligations must be direct obligations of or guaranteed by the federal government); (iii) certificates of deposit with a maturity of one year or less, issued by a federally insured institution; (iv) a deposit account in a federally insured institution that is subject to a withdrawal restriction of one year or less; (v) a checking account in a federally insured institution; or (vi) a reasonable petty cash fund.

      SBICs are periodically examined and audited by the SBA'sSBA’s staff to determine their compliance with SBIC regulations and are periodically required to file certain financial information and other documents with the SBA.

      Neither the SBA nor the U.S. government or any of its agencies or officers has approved any ownership interest to be issued by us or any obligation that we or any of our subsidiaries may incur.

      We are subject to the reporting and disclosure requirements of the Securities Exchange Act of 1934 (the "Exchange Act"“Exchange Act”), including the filing of quarterly, annual and current reports, proxy statements and other required items. In addition, we are subject to the Sarbanes-Oxley Act of 2002, which imposes a wide variety of regulatory requirements on publicly-held companies and their insiders. For example:

      pursuant to Rule 13a-14 of the Exchange Act, our Chief Executive Officer and Chief Financial Officer are required to certify the accuracy of the consolidated financial statements contained in our periodic reports;
      pursuant to Item 307 of Regulation S-K, our periodic reports are required to disclose our conclusions about the effectiveness of our disclosure controls and procedures;
      pursuant to Rule 13a-15 of the Exchange Act, our management is required to prepare a report regarding its assessment of our internal control over financial reporting, and our independent registered public accounting firm separately audits our internal control over financial reporting; and
      pursuant to Item 308 of Regulation S-K and Rule 13a-15 of the Exchange Act, our periodic reports must disclose whether there were significant changes in our internal control over financial reporting or in other factors that could significantly affect these controls subsequent to the date of their evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses.

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          pursuant to Rule 13a-15 of the Exchange Act, our management is required to prepare a report regarding its assessment of our internal control over financial reporting, and our independent registered public accounting firm separately audits our internal control over financial reporting; and

          pursuant to Item 308 of Regulation S-K and Rule 13a-15 of the Exchange Act, our periodic reports must disclose whether there were significant changes in our internal control over financial reporting or in other factors that could significantly affect these controls subsequent to the date of their evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses.

        The New York Stock Exchange Corporate Governance Regulations

      The New York Stock Exchange ("NYSE"(“NYSE”) has adopted corporate governance regulations that listed companies must comply with. We believe we are in compliance with such corporate governance listing standards. We intend to monitor our compliance with all future listing standards and to take all necessary actions to ensure that we stay in compliance.

        Investment Adviser Regulations

      The External Investment Manager, which is wholly owned by us, is subject to regulation under the Advisers Act. The Advisers Act establishes, among other things, recordkeeping and reporting requirements, disclosure requirements, limitations on transactions between the adviser'sadviser’s account and an advisory client'sclient’s account, limitations on transactions between the accounts of advisory clients, and general anti-fraud prohibitions. The External Investment Manager may be examined by the SEC from time to time for compliance with the Advisers Act.

        Taxation as a Regulated Investment Company

      MSCC has elected to be treated for U.S. federal income tax purposes as a RIC under Subchapter M of the Code. MSCC'sMSCC’s taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, weMSCC generally will not pay corporate-level

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      U.S. federal income taxes on any income that we distribute to our stockholders as dividends. To qualify as a RIC, we must, among other things, meet certain source-of-income and asset diversification requirements (as described below). In addition, in order to obtain RIC tax treatment, we must distribute to our stockholders, for each taxable year, at least 90% of our "investment“investment company taxable income," which is generally our net ordinary taxable income plus the excess of realized net short-term capital gains over realized net long-term capital losses, and 90% of our tax-exempt income (the "Annual“Annual Distribution Requirement"Requirement”). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

      For any taxable year in which we qualify as a RIC and satisfy the Annual Distribution Requirement, we will not be subject to U.S. federal income tax on the portion of our income or capital gains we distribute (or are deemed to distribute) to stockholders. We will be subject to U.S. federal income tax at the regular corporate rates on any income or capital gains not distributed (or deemed distributed) to our stockholders.

      We are subject to a 4% non-deductible U.S. federal excise tax on certain undistributed income unless we distribute in a timely manner an amount at least equal to the sum of (1) 98% of our net ordinary taxable income for each calendar year, (2) 98.2% of our capital gain net income for the one-year period ending December 31 in that calendar year and (3) any taxable income recognized, but not distributed, in preceding years on which we paid no U.S. federal income tax (the "Excise“Excise Tax Avoidance Requirement"Requirement”). Dividends declared and paid by us in a year will generally differ from taxable income for that year as such dividends may include the distribution of current year taxable income, exclude amounts carried over into the following year, and include the distribution of prior year taxable income carried over into and distributed in the current


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      year. For amounts we carry over into the following year, we will be required to pay the 4% U.S. federal excise tax based on the excess of 98% of our annual investment company taxable income and 98.2% of our capital gain net income in excess ofover our distributions for the year.

      In order to qualify as a RIC for U.S. federal income tax purposes, we must, among other things:

          continue to qualify as a BDC under the 1940 Act at all times during each taxable year;

          derive in each taxable year at least 90% of our gross income from dividends, interest, payments with respect to certain securities, loans, gains from the sale of stock or other securities, net income from certain "qualified publicly traded partnerships," or other income derived with respect to our business of investing in such stock or securities (the "90% Income Test"); and

          diversify our holdings so that at the end of each quarter of the taxable year:

          at least 50% of the value of our assets consists of cash, cash equivalents, U.S. government securities, securities of other RICs, and other securities if such other securities of any one issuer do not represent more than 5% of the value of our assets or more than 10% of the outstanding voting securities of the issuer; and

          no more than 25% of the value of our assets is invested in the securities, other than U.S. government securities or securities of other RICs, (i) of one issuer, (ii) of two or more issuers that are controlled, as determined under applicable Code rules, by us and that are engaged in the same or similar or related trades or businesses or (iii) of certain "qualified publicly traded partnerships" (collectively, the "Diversification Tests").
      continue to qualify as a BDC under the 1940 Act at all times during each taxable year;
      derive in each taxable year at least 90% of our gross income from dividends, interest, payments with respect to certain securities, loans, gains from the sale of stock or other securities, net income from certain “qualified publicly traded partnerships,” or other income derived with respect to our business of investing in such stock or securities (the “90% Income Test”); and
      diversify our holdings so that at the end of each quarter of the taxable year:
      at least 50% of the value of our assets consists of cash, cash equivalents, U.S. government securities, securities of other RICs, and other securities if such other securities of any one issuer do not represent more than 5% of the value of our assets or more than 10% of the outstanding voting securities of the issuer; and
      no more than 25% of the value of our assets is invested in the securities, other than U.S. government securities or securities of other RICs, (i) of one issuer, (ii) of two or more issuers that are controlled, as determined under applicable Code rules, by us and that are engaged in the same or similar or related trades or businesses or (iii) of certain “qualified publicly traded partnerships” (collectively, the “Diversification Tests”).

      In order to comply with the 90% Income Test, we formed the Taxable Subsidiaries as wholly owned taxable subsidiaries for the primary purpose of permitting us to own equity interests in portfolio companies which are "pass-through"“pass-through” entities for tax purposes. Absent the taxable status of the Taxable Subsidiaries, a portion of the gross income from such portfolio companies would flow directly to us for purposes of the 90% Income Test. To the extent such income did not consist of income derived from securities, such as dividends and interest, it could jeopardize our ability

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      to qualify as a RIC and, therefore, cause us to incur significant U.S. federal income taxes. The Taxable Subsidiaries are consolidated with Main Street for generally accepted accounting principles in the United States of America ("(“U.S. GAAP"GAAP”) purposes and are included in our consolidated financial statements, and the portfolio investments held by the Taxable Subsidiaries are included in our consolidated financial statements. The Taxable Subsidiaries are not consolidated with Main StreetMSCC for income tax purposes and may generate income tax expense, or benefit, as a result of their ownership of the portfolio investments. The income tax expense, or benefit, if any, and any related tax assets and liabilities, are reflected in our consolidated financial statements.

      The External Investment Manager is accounted for as a portfolio investment for U.S. GAAP purposes and is an indirect wholly owned subsidiary of MSCC, owned through a Taxable Subsidiary. The External Investment Manager is owned by a Taxable Subsidiary in order to comply with the 90% Income Test, since the External Investment Manager'sManager’s income would likely not consist of income derived from securities, such as dividends and interest, and as result, it could jeopardize our ability to qualify as a RIC and, therefore, cause us to incur significant U.S. federal income taxes. As a result of its ownership by a Taxable Subsidiary, the External Investment Manager is a disregarded entity for tax purposes. The External Investment Manager has also entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment Manager is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC'sMSCC’s consolidated financial statements, and as a result of the tax sharing agreement with its Taxable Subsidiary owner, for its stand-alone financial reporting purposes the External Investment Manager is treated as if it is taxed at normal corporate tax rates based on its taxable income and, as a result of its activities, may generate income tax expense or benefit. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the External Investment Manager are reflected in the External Investment Manager'sManager’s separate financial statements.


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      We may be required to recognize taxable income in circumstances in which we do not receive cash. For example, if we hold debt obligations that are treated under applicable tax rules as having original issue discount (such as debt instruments issued with warrants and debt securities invested in at a discount to par), we must include in income each year a portion of the original issue discount that accrues over the life of the obligation, regardless of whether cash representing such income is received by us in the same taxable year. We may also have to include in income other amounts that we have not yet received in cash such as PIK interest, cumulative dividends or amounts that are received in non-cash compensation such as warrants or stock. Because any original issue discount or other amounts accrued will be included in our investment company taxable income for the year of accrual, we may be required to make a distribution to our stockholders in order to satisfy the Annual Distribution Requirement, even though we will not have received any corresponding cash amount.

      Although we do not presently expect to do so, we are authorized to borrow funds and to sell assets in order to satisfy distribution requirements. However, under the 1940 Act, we are not permitted to make distributions to our stockholders in certain circumstances while our debt obligations and other senior securities are outstanding unless certain "asset coverage"“asset coverage” tests are met. See "Regulation“Regulation — Regulation as a Business Development Company — Senior Securities." Moreover, our ability to dispose of assets to meet our distribution requirements may be limited by (1) the illiquid nature of our portfolio and/or (2) other requirements relating to our status as a RIC, including the Diversification Tests. If we dispose of assets in order to meet the Annual Distribution Requirement or the Excise Tax Avoidance Requirement, we may make such dispositions at times that, from an investment standpoint, are not advantageous.

      We may distribute taxable dividends that are payable in part in our stock. Under certain applicable provisions of the Code and the U.S. Department of the Treasury ("Treasury"(“Treasury”) regulations, distributions payable by us in cash or in shares of stock (at the stockholders election) would satisfy the Annual Distribution Requirement. The Internal Revenue Service has issued guidance indicating that this rule will apply even where the total amount of cash that may be distributed is limited to no more than 20% of the total distribution. According to this guidance, if too many stockholders elect to receive their distributions in cash, each such stockholder would receive a pro rata share of the total cash to be distributed and would receive the remainder of their distribution in shares of stock. Taxable stockholders receiving such dividends will be required to include the full amount of the dividend (whether received in cash, our stock, or a combination thereof) as (i) ordinary income (including any qualified dividend income that, in the case of a noncorporate stockholder, may be eligible for the same reduced maximum tax rate applicable to long-term capital gains to the extent such distribution is properly reported by us as qualified dividend income and such stockholder satisfies certain minimum

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      holding period requirements with respect to our stock) or (ii) long-term capital gain (to the extent such distribution is properly reported as a capital gain dividend), to the extent of our current and accumulated earnings and profits for U.S. federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in excess of any cash received. If a U.S. stockholder sells the stock it receives in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.

      If we fail to satisfy the 90% Income Test or the Diversification Tests for any taxable year, we may nevertheless continue to qualify as a RIC for such year if certain relief provisions are applicable (which may, among other things, require us to pay certain corporate-level U.S. federal taxes or to dispose of certain assets).

      If we were unable to qualify for treatment as a RIC and the foregoing relief provisions are not applicable, we would be subject to tax on all of our taxable income at regular corporate rates. We would not be able to


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      deduct distributions to stockholders, nor would they be required to be made. If we were subject to tax on all of our taxable income at regular corporate rates, then distributions we make after being subject to such tax would be taxable to our stockholders and, provided certain holding period and other requirements were met, could qualify for treatment as "qualified“qualified dividend income"income” eligible for the maximum 20% rate (plus a 3.8% Medicare surtax, if applicable) applicable to qualified dividends to the extent of our current and accumulated earnings and profits. Subject to certain limitations under the Code, corporate taxpayers would be eligible for a dividends-received deduction on distributions they receive. Distributions in excess of our current and accumulated earnings and profits would be treated first as a return of capital to the extent of the stockholder'sstockholder’s tax basis, and any remaining distributions would be treated as a capital gain. To requalify as a RIC in a subsequent taxable year, we would be required to satisfy the RIC qualification requirements for that year and dispose of any earnings and profits from any year in which we failed to qualify as a RIC. Subject to a limited exception applicable to RICs that qualified as such under Subchapter M of the Code for at least one year prior to disqualification and that requalify as a RIC no later than the second year following the nonqualifying year, we could be subject to tax on any unrealized net built-in gains in the assets held by us during the period in which we failed to qualify as a RIC that are recognized within the subsequent five years, unless we made a special election to pay corporate-level U.S. federal income tax on such built-in gain at the time of our requalification as a RIC.

      Item 1A. Risk Factors

      Investing in our securities involves a number of significant risks. In addition to the other information contained in this Annual Report on Form 10-K, you should consider carefully the following information before making an investment in our securities. The risks set out below are not the only risks we face. Additional risks and uncertainties not presently known to us or not presently deemed material by us might also impair our operations and performance. If any of the following events occur, our business, financial condition and results of operations could be materially and adversely affected. In such case, our net asset value, the trading price of our common stock and the value of our other securities could decline, and you may lose all or part of your investment.

      RISKS RELATING TO ECONOMIC CONDITIONSSUMMARY OF RISK FACTORS

        DeteriorationThe following is a summary of the principal risk factors associated with an investment in our securities. Further details regarding each risk included in the economybelow summary list can be found further below.

        Risks Related to our Business and financial markets increases the likelihood of adverse effects on our financial position and results of operations. Such economic adversity could impair our portfolio companies' financial positions and operating results and affect the industries in which we invest, which could, in turn, harm our operating results.Structure

      Because our Investment Portfolio is recorded at fair value, there is and will continue to be uncertainty as to the value of our portfolio investments.
      Our financial condition and results of operations depends on our ability to effectively manage and deploy capital.
      We face increasing competition for investment opportunities.

             The broader fundamentals of the United States economy remain mixed. In the event that the United States economy contracts, it is likely that the financial results of small to mid-sized companies, like those in which we invest, could experience deterioration or limited growth from current levels, which could ultimately lead to difficulty in meeting their debt service requirements and an increase in defaults. In addition, a decline in oil and natural gas prices would adversely affect the credit quality of our debt investments and the underlying operating performance of our equity investments in energy-related businesses. Consequently, we can provide no assurance that the performance of certain portfolio companies will not be negatively impacted by economic cycles, industry cycles or other conditions, which could also have a negative impact on our future results.24


             Although we have been able to secure access to additional liquidity, including through the Credit Facility, public debt issuances, leverage available through the SBIC program and equity offerings, the potential for volatility in the debt and equity capital markets provides no assurance that debt or equity capital will be available to us in the future on favorable terms, or at all. Further, if the price of our common stock falls below our net asset value per share, we will be limited in our ability to sell new shares if we do not have stockholder authorization to sell shares at a price below net asset value per share. We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share


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      We are dependent upon our key investment personnel for our future success.
      Our success depends on attracting and retaining qualified personnel in a competitive environment.
      Our business model depends to a significant extent upon strong referral relationships.
      Our Board of Directors may change our operating policies and strategies without prior notice or stockholder approval, the effects of which may be adverse.
      We may not be able to pay distributions to our stockholders, our distributions may not grow over time, and a portion of distributions paid to our stockholders may be a return of capital, which is a distribution of the stockholders’ invested capital.

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      Risks Related to our Investments

      Our investments in portfolio companies involve higher levels of risk, and we could lose all or part of our investment.
      We may be exposed to higher risks with respect to our investments that include original issue discount or PIK interest.
      The lack of liquidity in our investments may adversely affect our business.
      We may not have the funds or ability to make additional investments in our portfolio companies.
      There may be circumstances where our debt investments could be subordinated to claims of other creditors or we could be subject to lender liability claims.
      We generally will not control our portfolio companies.
      Defaults by our portfolio companies will harm our operating results.
      Any unrealized depreciation we experience in our portfolio may be an indication of future realized losses, which could reduce our income and gains available for distribution.
      Prepayments of our debt investments by our portfolio companies could adversely impact our results of operations and reduce our return on equity.
      Changes relating to the LIBOR calculation process, the phase-out of LIBOR and the use of replacement rates for LIBOR may adversely affect the value of our portfolio securities.
      We are subject to risks associated with the current interest rate environment and changes in interest rates will affect our cost of capital and net investment income and the value of our investments.
      We may be subject to risks associated with “covenant-lite” loans.
      Changes in interest rates may affect our cost of capital, net investment income.
      We may not realize gains from our equity investments.

      Risks Related to Leverage

      Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us.
      All of our assets are subject to security interests under our senior securities and if we default on our obligations under our senior securities, we may suffer adverse consequences, including foreclosure on our assets.
      We have received Board approval that will allow us to incur additional leverage, which could increase the risk of investing in our securities.

      Risks Related to our Investment Management Activities

      Our executive officers and employees, through the External Investment Manager, may manage other investment funds that operate in the same or a related line of business as we do, and may invest in such funds, which may result in significant conflicts of interest.
      We, through the External Investment Manager, derive revenues from managing third-party funds pursuant to management agreements that may be terminated.

      Risks Related to BDCs

      Failure to comply with applicable laws or regulations and changes in laws or regulations governing our operations may adversely affect our business or cause us to alter our business strategy.
      Operating under the constraints imposed on us as a BDC and RIC may hinder the achievement of our investment objectives.

      Risks Related to our Securities

      Investing in our securities may involve a high degree of risk.
      Shares of closed-end investment companies, including BDCs, may trade at a discount to their net asset value.
      Our outstanding unsecured notes (the “Notes”) are unsecured and therefore effectively subordinated to any current or future secured indebtedness.
      If we default on our obligations to pay our other indebtedness, we may not be able to make payments on the Notes.

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      Risks Related to our common stock at our 2017 annual meeting of stockholders because our common stock price had been trading significantly above the net asset value per share of our common stock since 2011.SBIC Funds

      We, through the Funds, issue debt securities guaranteed by the SBA and sold in the capital markets. As a result of its guarantee of the debt securities, the SBA has fixed dollar claims on the assets of the Funds that are superior to the claims of our securities holders.

      Federal Income Tax Risks

      We will be subject to corporate-level U.S. federal income tax if we are unable to qualify as a RIC under Subchapter M of the Code.
      We may have difficulty paying the distributions required to maintain RIC tax treatment under the Code if we recognize income before or without receiving cash representing such income.

      General Risk Factors

      Deterioration in the economy and financial markets could impair our portfolio companies’ financial positions and operating results and affect the industries in which we invest, which could, in turn, harm our operating results.
      We are highly dependent on information systems and systems failures could significantly disrupt our business, which may, in turn, negatively affect the market price of our common stock and our ability to pay dividends.

      RISKS RELATINGRELATED TO OUR BUSINESS AND STRUCTURE

      Under the 1940 Act, we are required to carry our portfolio investments at market value or, if there is no readily available market value, at fair value as determined by us withpursuant to procedures established and overseen by our Board of Directors having final responsibility for overseeing, reviewing and approving, in good faith, our determination of fair value and our valuation procedures.Directors. Typically, there is not a public market for the securities of the privately held LMM or Private Loan companies in which we have invested and will generally continue to invest. As a result, we value these securities quarterly at fair value based on inputs from management and a nationally recognized independent financial advisory services firm (on a rotational basis) and our audit committee with the oversight, review and approval ofpursuant to Valuation Procedures approved by our Board of Directors. In addition, the market for investments in Middle Market companies is generally not a liquid market, and therefore, we primarily use a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value of these investments and unobservable inputs, which are reviewed bypursuant to our audit committee with the oversight, review and approval of our Board of Directors.Valuation Procedures. See "Note“Note B.1. — Valuation of the Investment Portfolio"Portfolio” in the notes to consolidated financial statements for a more detailed discussiondescription of our investment portfolio valuation process and procedures.

      The determination of fair value and consequently, the amount of unrealized gains and losses in our portfolio, are to a certain degree, subjective and dependent on a valuation process approved by our Board of Directors. Certain factors that may be considered in determining the fair value of our investments include external events, such as private mergers, sales and acquisitions involving comparable companies. Because such valuations, and particularly valuations of private securities and privatein privately held companies, are inherently uncertain, may fluctuate over short periods of time and may be based on estimates, our determinations of fair value may differ materially from the values that would have been used if a ready market for these securities existed. Due to this uncertainty, our fair value determinations may cause our net asset value on a given date to materially understate or overstate the value that we may ultimately realize on one or more of our investments. As a result, investors purchasing our securities based on an overstated net asset value would pay a higher price than the value of our investments might warrant. Conversely, investors selling our securities during a period in which the net asset value understates the value of our investments may receive a lower price for their securities than the value of our investments might warrant.

      Our ability to achieve our investment objective of maximizing our portfolio'sportfolio’s total return by generating current income from our debt investments and current income and capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company, depends on our ability to effectively manage and deploy capital, which depends, in turn, on our investment team's

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      team’s ability to identify, evaluate and monitor, and our ability to finance and invest in, companies that meet our investment criteria.

      Accomplishing our investment objective on a cost-effective basis is largely a function of our investment team'steam’s handling of the investment process, its ability to provide competent, attentive and efficient services and our access to investments offering acceptable terms. In addition to monitoring the performance of our existing investments, members of our investment team are also called upon, from time to time, to provide managerial


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      assistance to some of our portfolio companies. These demands on their time may distract them or slow the rate of investment.

      Even if we are able to grow and build upon our investment operations, any failure to manage our growth effectively could have a material adverse effect on our business, financial condition, results of operations and prospects. The results of our operations will depend on many factors, including the availability of opportunities for investment, readily accessible short and long-term funding alternatives in the financial markets and economic conditions. Furthermore, if we cannot successfully operate our business or implement our investment policies and strategies as described herein, it could negatively impact our ability to pay dividends.

        We may face increasing competition for investment opportunities.

      We compete for investments with other investment funds (including private equity funds, debt funds, mezzanine funds, collateralized loan obligation funds, or CLOs, BDCs and SBICs), as well as traditional financial services companies such as commercial banks and other sources of funding. Many of our competitors are substantially larger and have considerably greater financial, technical and marketing resources than we do. For example, some competitors may have a lower cost of capital and access to funding sources that are not available to us. In addition, some of our competitors may have higher risk tolerances or different risk assessments than we have. These characteristics could allow our competitors to consider a wider variety of investments, establish more relationships and offer better pricing and more flexible structuring than we are able to do. We may lose investment opportunities if we do not match our competitors'competitors’ pricing, terms and structure. If we are forced to match our competitors'competitors’ pricing, terms and structure, we may not be able to achieve acceptable returns on our investments or may bear substantial risk of capital loss. A significant part of our competitive advantage stems from the fact that the market for investments in LMM companies is underserved by traditional commercial banks and other financing sources. A significant increase in the number and/or the size of our competitors in this target market could force us to accept less attractive investment terms. Furthermore, many of our competitors are not subject to the regulatory restrictions that the 1940 Act imposes on us as a BDC.

        We are dependent upon our key investment personnel for our future success.

      We depend on the members of our investment team, particularly Vincent D. Foster, Dwayne L. Hyzak, Curtis L. Hartman, David L. Magdol, Jesse E. Morris, K. Colton Braud, III, Alejandro Capetillo,Damian T. Burke, Samuel A. Cashiola, Diego Fernandez and Nicholas T. Meserve for the identification, review, final selection, structuring, closing and monitoring of our investments. These employees have significant investment expertise and relationships that we rely on to implement our business plan. Although we have entered into a non-compete agreementarrangements with Mr. Foster,all of our executive officers and other key employees, we have nocannot guarantee that he or any other employees will remain employed with us. If we lose the services of thesethe individuals mentioned above, we may not be able to operate our business as we expect, and our ability to compete could be harmed, which could cause our operating results to suffer.

        Our success depends on attracting and retaining qualified personnel in a competitive environment.

      Our growth will require that we retain new investment and administrative personnel in a competitive market. Our ability to attract and retain personnel with the requisite credentials, experience and skills depends on several factors including, but not limited to, our ability to offer competitive wages, benefits and professional growth opportunities. Many of the entities, including investment funds (such as private equity funds, debt funds and mezzanine funds) and traditional financial services companies, with which we compete for experienced personnel have greater resources than we have.

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      The competitive environment for qualified personnel may require us to take certain measures to ensure that we are able to attract and retain experienced personnel. Such measures may include increasing the attractiveness of our overall compensation packages, altering the structure of our compensation packages


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      through the use of additional forms of compensation, or other steps. The inability to attract and retain experienced personnel would have a material adverse effect on our business.

        Our business model depends to a significant extent upon strong referral relationships, and our inability to maintain or develop these relationships, as well as the failure of these relationships to generate investment opportunities, could adversely affect our business.relationships.

      We expect that members of our management team will maintain their relationships with intermediaries, financial institutions, investment bankers, commercial bankers, financial advisors, attorneys, accountants, consultants and other individuals within our network, and we will rely to a significant extent upon these relationships to provide us with potential investment opportunities. If our management team fails to maintain its existing relationships or develop new relationships with sources of investment opportunities, we will not be able to grow our Investment Portfolio. In addition, individuals with whom members of our management team have relationships are not obligated to provide us with investment opportunities, and, therefore, there is no assurance that such relationships will generate investment opportunities for us.

        There are significant potential conflicts of interest which could impact our investment returns.

             Our executive officers and employees, through the External Investment Manager, may manage other investment funds that operate in the same or a related line of business as we do. Accordingly, they may have obligations to such other entities, the fulfillment of which obligations may not be in the best interests of us or our stockholders. During May 2012, we entered into an investment sub-advisory agreement with HMS Adviser, which is the investment advisor to HMS Income, a non-listed BDC, to provide certain investment advisory services to HMS Adviser. In December 2013, after obtaining required no-action relief from the SEC to allow us to own a registered investment adviser, we assigned the sub-advisory agreement to the External Investment Manager since the fees received from such arrangement could otherwise have negative consequences on our ability to meet the source-of-income requirement necessary for us to maintain our RIC tax treatment. Under the investment sub-advisory agreement, the External Investment Manager is entitled to 50% of the base management fee and the incentive fees earned by HMS Adviser under its advisory agreement with HMS Income. The sub-advisory relationship requires us to commit resources to achieving HMS Income's investment objective, while such resources were previously solely devoted to achieving our investment objective. Our investment objective and investment strategies are very similar to those of HMS Income and it is likely that an investment appropriate for us or HMS Income would be appropriate for the other entity. As a result, we and HMS Income requested an exemptive order from the SEC permitting co-investments by us and HMS Income in certain negotiated transactions where our co-investing would otherwise be prohibited under the 1940 Act. The SEC granted the exemptive order in April 2014, and we have made, and in the future intend to continue to make, such co-investments with HMS Income in accordance with the conditions of the order. The order requires, among other things, that we and the External Investment Manager consider whether each such investment opportunity is appropriate for HMS Income and, if it is appropriate, to propose an allocation of the investment opportunity between us and HMS Income. As a consequence, it may be more difficult for us to maintain or increase the size of our Investment Portfolio in the future. Although we will endeavor to allocate investment opportunities in a fair and equitable manner, including in accordance with the conditions set forth in the exemptive order issued by the SEC when relying on such order, we may face conflicts in allocating investment opportunities between us and HMS Income. Because the External Investment Manager may receive performance-based fee compensation from HMS Income, this may provide an incentive to allocate opportunities to HMS Income instead of us. We have implemented an allocation policy to ensure the equitable distribution of investment opportunities and, as a result, may be unable to participate in certain investments based upon such allocation policy.


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        Regulations governing our operation as a BDC will affect our ability to, and the way in which we, raise additional capital.

             Our business will require capital to operate and grow. We may acquire such additional capital from the following sources:

               Senior Securities.    We may issue debt securities or preferred stock and/or borrow money from banks or other financial institutions, which we refer to collectively as senior securities. As a result of issuing senior securities, we will be exposed to additional risks, including the following:

            Under the provisions of the 1940 Act, we are permitted, as a BDC, to issue senior securities only in amounts such that our asset coverage, as defined in the 1940 Act, equals at least 200% immediately after each issuance of senior securities. We have received exemptive relief from the SEC to permit us to exclude the SBA-guaranteed debentures of the Funds from our 200% asset coverage test under the 1940 Act. If the value of our assets declines, we may be unable to satisfy this test. If that happens, we will be prohibited from issuing debt securities or preferred stock and/or borrowing money from banks or other financial institutions and may not be permitted to declare a dividend or make any distribution to stockholders or repurchase shares until such time as we satisfy this test.

            Any amounts that we use to service our debt or make payments on preferred stock will not be available for dividends to our common stockholders.

            It is likely that any senior securities or other indebtedness we issue will be governed by an indenture or other instrument containing covenants restricting our operating flexibility. Additionally, some of these securities or other indebtedness may be rated by rating agencies, and in obtaining a rating for such securities and other indebtedness, we may be required to abide by operating and investment guidelines that further restrict operating and financial flexibility.

            We and, indirectly, our stockholders will bear the cost of issuing and servicing such securities and other indebtedness.

            Preferred stock or any convertible or exchangeable securities that we issue in the future may have rights, preferences and privileges more favorable than those of our common stock, including separate voting rights and could delay or prevent a transaction or a change in control to the detriment of the holders of our common stock.

            Any unsecured debt issued by us would rank (i) pari passu with our current and future unsecured indebtedness and effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, and (ii) structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including the SBA-guaranteed debentures issued by the Funds.

               Additional Common Stock.    The 1940 Act prohibits us from selling shares of our common stock at a price below the current net asset value per share of such stock, with certain exceptions. One such exception is prior stockholder approval of issuances below current net asset value per share provided that our Board of Directors makes certain determinations. We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 2017 annual meeting of stockholders because our common stock price had been trading significantly above the net asset value per share of our common stock since 2011. We may, however, sell our common stock, warrants, options or rights to acquire our common stock, at a price below the current net asset value of the common stock if our Board of Directors determines that such sale is in the best interests of our stockholders, and our stockholders approve such sale. See "— Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock" for a discussion of the risks related to us issuing shares of our common stock below net


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        asset value. Our stockholders have authorized us to issue warrants, options or rights to subscribe for, convert to, or purchase shares of our common stock at a price per share below the net asset value per share, subject to the applicable requirements of the 1940 Act. There is no expiration date on our ability to issue such warrants, options, rights or convertible securities based on this stockholder approval. If we raise additional funds by issuing more common stock or senior securities convertible into, or exchangeable for, our common stock, the percentage ownership of our stockholders at that time would decrease, and they may experience dilution. Moreover, we can offer no assurance that we will be able to issue and sell additional equity securities in the future, on favorable terms or at all.

        The Funds are licensed by the SBA, and therefore subject to SBA regulations.

             The Funds, our wholly owned subsidiaries, are licensed to act as SBICs and are regulated by the SBA. The SBA also places certain limitations on the financing terms of investments by SBICs in portfolio companies and prohibits SBICs from providing funds for certain purposes or to businesses in a few prohibited industries. Compliance with SBA requirements may cause the Funds to forego attractive investment opportunities that are not permitted under SBA regulations.

             Further, the SBA regulations require, among other things, that a licensed SBIC be periodically examined by the SBA and audited by an independent auditor, in each case to determine the SBIC's compliance with the relevant SBA regulations. The SBA prohibits, without prior SBA approval, a "change of control" of an SBIC or transfers that would result in any person (or a group of persons acting in concert) owning 10% or more of a class of capital stock of a licensed SBIC. If the Funds fail to comply with applicable SBIC regulations, the SBA could, depending on the severity of the violation, limit or prohibit their use of SBIC debentures, declare outstanding SBIC debentures immediately due and payable, and/or limit them from making new investments. In addition, the SBA can revoke or suspend a license for willful or repeated violation of, or willful or repeated failure to observe, any provision of the Small Business Investment Act of 1958 or any rule or regulation promulgated thereunder. Such actions by the SBA would, in turn, negatively affect us.

        Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us.

             Borrowings, also known as leverage, magnify the potential for loss on investments in our indebtedness and gain or loss on investments in our equity capital. As we use leverage to partially finance our investments, you will experience increased risks of investing in our securities. We, through the Funds, issue debt securities guaranteed by the SBA and sold in the capital markets. As a result of its guarantee of the debt securities, the SBA has fixed dollar claims on the assets of the Funds that are superior to the claims of our securities holders. We may also borrow from banks and other lenders, including under our Credit Facility, and may issue debt securities or enter into other types of borrowing arrangements in the future. See "Management's Discussion and Analysis of Financial Condition and Results of Operations — Capital Resources" for a discussion regarding our outstanding indebtedness. If the value of our assets decreases, leveraging would cause net asset value to decline more sharply than it otherwise would have had we not leveraged our business. Similarly, any decrease in our income would cause net investment income to decline more sharply than it would have had we not leveraged our business. Such a decline could negatively affect our ability to pay common stock dividends, scheduled debt payments or other payments related to our securities. Use of leverage is generally considered a speculative investment technique.

             As of December 31, 2017, we, through the Funds, had $295.8 million of outstanding indebtedness guaranteed by the SBA, which had a weighted-average annualized interest cost of approximately 3.6%. The debentures guaranteed by the SBA have a maturity of ten years, with a current weighted-average remaining maturity of 5.8 years as of December 31, 2017, and require semiannual payments of interest. We will need to generate sufficient cash flow to make required interest payments on the debentures. If we are unable to meet the financial obligations under the debentures, the SBA, as a creditor, will have a superior claim to the assets of the Funds over our securities holders in the event we liquidate or the SBA exercises its remedies under such debentures as the result of a default by us.


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             In addition, as of December 31, 2017, we had $64.0 million outstanding under our Credit Facility. Borrowings under the Credit Facility bear interest, subject to our election, on a per annum basis at a rate equal to the applicable LIBOR rate (1.56% as of December 31, 2017) plus (i) 1.875% (or the applicable base rate (Prime Rate of 4.50% as of December 31, 2017) plus 0.875%), as long as we maintain an investment grade rating and meet certain agreed upon excess collateral and maximum leverage requirements, (ii) 2.0% (or the applicable base rate plus 1.0%) if we maintain an investment grade rating but do not meet certain excess collateral and maximum leverage requirements or (iii) 2.25% (or the applicable base rate plus 1.25%) if we do not maintain an investment grade rating. We pay unused commitment fees of 0.25% per annum on the unused lender commitments under the Credit Facility. If we are unable to meet the financial obligations under the Credit Facility, the Credit Facility lending group will have a superior claim to the assets of MSCC and its subsidiaries (excluding the assets of the Funds) over our stockholders in the event we liquidate or the lending group exercises its remedies under the Credit Facility as the result of a default by us.

             In April 2013, we issued $92.0 million in aggregate principal amount of 6.125% Notes due 2023 (the "6.125% Notes"). As of December 31, 2017, the outstanding balance of the 6.125% Notes was $90.7 million. The 6.125% Notes are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 6.125% Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 6.125% Notes mature on April 1, 2023, and may be redeemed in whole or in part at any time or from time to time at our option on or after April 1, 2018. The 6.125% Notes bear interest at a rate of 6.125% per year.

             In November 2014, we issued $175.0 million in aggregate principal amount of 4.50% unsecured notes due 2019 (the "4.50% Notes due 2019") at an issue price of 99.53%. As of December 31, 2017, the outstanding balance of the 4.50% Notes due 2019 was $175.0 million. The 4.50% Notes due 2019 are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 4.50% Notes due 2019; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50% Notes due 2019 mature on December 1, 2019, and may be redeemed in whole or in part at any time at our option subject to certain make-whole provisions.

             In November 2017, we issued $185.0 million in aggregate principal amount of 4.50% unsecured notes due 2022 (the "4.50% Notes due 2022," together with the 4.50% Notes due 2019, the "4.50% Notes" and, both of these together with the 6.125% Notes, the "Notes") at an issue price of 99.16%. As of December 31, 2017, the outstanding balance of the 4.50% Notes due 2022 was $185.0 million. The 4.50% Notes due 2022 are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 4.50% Notes due 2022; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50% Notes due 2022 mature on December 1, 2022, and may be redeemed in whole or in part at any time at our option subject to certain make-whole provisions.

               Illustration.    The following table illustrates the effect of leverage on returns from an investment in our common stock assuming various annual returns, net of expenses. The calculations in the table below are hypothetical and actual returns may be higher or lower than those appearing below.


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      Assumed Return on Our Portfolio(1)
      (net of expenses)

       
       (10.0)% (5.0)% 0.0% 5.0% 10.0% 

      Corresponding net return to common stockholder(2)

        (19.0)%  (10.8)%  (2.6)%  5.6%  13.8% 

      (1)
      Assumes $2,265.4 million in total assets, $810.5 million in debt outstanding, $1,380.4 million in net assets, and a weighted-average interest rate of 4.4%. Actual interest payments may be different.

      (2)
      In order for us to cover our annual interest payments on indebtedness, we must achieve annual returns on our December 31, 2017 total assets of at least 1.6%.

             Our ability to achieve our investment objective may depend in part on our ability to access additional leverage on favorable terms by issuing debentures guaranteed by the SBA through the Funds, by borrowing from banks or insurance companies or by issuing other debt securities and there can be no assurance that such additional leverage can in fact be achieved.

        All of our assets are subject to security interests under our secured Credit Facility or subject to a superior claim over our stockholders by the SBA and if we default on our obligations under the Credit Facility or with respect to our SBA-guaranteed debentures, we may suffer adverse consequences, including foreclosure on our assets.

             Substantially all of our assets are currently pledged as collateral under our Credit Facility or are subject to a superior claim over our stockholders by the SBA. If we default on our obligations under the Credit Facility or our SBA-guaranteed debentures, the lenders and/or the SBA may have the right to foreclose upon and sell, or otherwise transfer, the collateral subject to their security interests or their superior claim. In such event, we may be forced to sell our investments to raise funds to repay our outstanding borrowings in order to avoid foreclosure and these forced sales may be at times and at prices we would not consider advantageous. Moreover, such deleveraging of our company could significantly impair our ability to effectively operate our business in the manner in which we have historically operated. As a result, we could be forced to curtail or cease new investment activities and lower or eliminate the dividends that we have historically paid to our stockholders. In addition, if the lenders exercise their right to sell the assets pledged under our Credit Facility, such sales may be completed at distressed sale prices, thereby diminishing or potentially eliminating the amount of cash available to us after repayment of the amounts outstanding under the Credit Facility.

        Proposed legislation may allow us to incur additional leverage.

             As a BDC, under the 1940 Act we generally are not permitted to incur indebtedness unless immediately after such borrowing we have an asset coverage for total borrowings of at least 200% (i.e., the amount of debt may not exceed 50% of the value of our assets). Legislation introduced in the U.S. Senate and the U.S. House of Representatives during the 115th Congress proposes to modify this section of the 1940 Act and increase the amount of debt that BDCs may incur by modifying the asset coverage percentage from 200% to 150%. If such legislation is passed, we may be able to incur additional indebtedness in the future and, therefore, your risk of an investment in our securities may increase.

        Further downgrades of the U.S. credit rating, automatic spending cuts or another government shutdown could negatively impact our liquidity, financial condition and earnings.

             Recent U.S. debt ceiling and budget deficit concerns have increased the possibility of additional credit-rating downgrades and economic slowdowns, or a recession in the U.S. Although U.S. lawmakers passed legislation to raise the federal debt ceiling on multiple occasions, ratings agencies have lowered or threatened to lower the long-term sovereign credit rating on the United States. The impact of this or any further downgrades to the U.S. government's sovereign credit rating or its perceived creditworthiness could adversely affect the U.S. and global financial markets and economic conditions. Absent further quantitative easing by


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      the Federal Reserve, these developments could cause interest rates and borrowing costs to rise, which may negatively impact our ability to access the debt markets on favorable terms. In addition, disagreement over the federal budget has caused the U.S. federal government to shut down for periods of time. Continued adverse political and economic conditions could have a material adverse effect on our business, financial condition and results of operations.

        The interest rates of our floating-rate loans to our portfolio companies that extend beyond 2021 might be subject to change based on recent regulatory changes

             LIBOR is the basic rate of interest used in lending transactions between banks on the London interbank market and is widely used as a reference for setting the interest rate on loans globally. We typically use LIBOR as a reference rate in floating-rate loans we extend to portfolio companies such that the interest due to us pursuant to a term loan extended to a portfolio company is calculated using LIBOR. The terms of our debt investments generally include minimum interest rate floors which are calculated based on LIBOR.

             On July 27, 2017, the United Kingdom's Financial Conduct Authority, which regulates LIBOR, announced that it intends to phase out LIBOR by the end of 2021. It is unclear if at that time whether LIBOR will cease to exist or if new methods of calculating LIBOR will be established such that it continues to exist after 2021. The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee, a steering committee comprised of large U.S. financial institutions, is considering replacing U.S. dollar LIBOR with a new index calculated by short term repurchase agreements, backed by Treasury securities. If LIBOR ceases to exist, we may need to renegotiate the credit agreements extending beyond 2021 with our portfolio companies that utilize LIBOR as a factor in determining the interest rate to replace LIBOR with the new standard that is established.

        We may experience fluctuations in our operating results.

             We could experience fluctuations in our operating results due to a number of factors, including our ability or inability to make investments in companies that meet our investment criteria, the interest rate payable on the debt securities we acquire, the level of portfolio dividend and fee income, the level of our expenses, variations in and the timing of the recognition of realized and unrealized gains or losses, the degree to which we encounter competition in our markets and general economic conditions. As a result of these factors, operating results for any period should not be relied upon as being indicative of performance in future periods.

        Our Board of Directors may change our operating policies and strategies without prior notice or stockholder approval, the effects of which may be adverse.

      Our Board of Directors has the authority to modify or waive our current operating policies, investment criteria and strategies without prior notice and without stockholder approval. We cannot predict the effect any changes to our current operating policies, investment criteria and strategies would have on our business, net asset value, operating results and value of our stock. However, the effects might be adverse, which could negatively impact our ability to pay interest and principal payments to holders of our debt instruments and dividends to our stockholders and cause our investors to lose all or part of their investment in us.

        We will be subject to corporate-level U.S. federal income tax if we are unable to qualify as a RIC under Subchapter M of the Code.

             To maintain RIC tax treatment under the Code, we must meet the following annual distribution, income source and asset diversification requirements:

          The Annual Distribution Requirement for a RIC will be satisfied if we distribute to our stockholders on an annual basis at least 90% of our net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses, if any. Depending on the level of taxable income earned in a tax year, we may choose to carry forward taxable income in excess of current year

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            distributions into the next tax year and pay a 4% U.S. federal excise tax on such income. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax return related to the year which generated such taxable income. For more information regarding tax treatment, see "Business — Regulation — Taxation as a Regulated Investment Company." Because we use debt financing, we are subject to certain asset coverage ratio requirements under the 1940 Act and are (and may in the future become) subject to certain financial covenants under loan and credit agreements that could, under certain circumstances, restrict us from making distributions necessary to satisfy the distribution requirement. In addition, because we receive non-cash sources of income such as PIK interest which involves us recognizing taxable income without receiving the cash representing such income, we may have difficulty meeting the distribution requirement. If we are unable to obtain cash from other sources, we could fail to qualify for RIC tax treatment and thus become subject to corporate-level U.S. federal income tax.

          The source-of-income requirement will be satisfied if we obtain at least 90% of our gross income for each year from distributions, interest, gains from the sale of stock or securities or similar sources.

          The asset diversification requirement will be satisfied if we meet certain asset diversification requirements at the end of each quarter of our taxable year. To satisfy this requirement, at least 50% of the value of our assets must consist of cash, cash equivalents, U.S. government securities, securities of other RICs, and other acceptable securities; and no more than 25% of the value of our assets can be invested in the securities, other than U.S. government securities or securities of other RICs, (i) of one issuer, (ii) of two or more issuers that are controlled, as determined under applicable Code rules, by us and that are engaged in the same or similar or related trades or businesses or (iii) of certain "qualified publicly traded partnerships."

             Failure to meet these requirements may result in our having to dispose of certain investments quickly in order to prevent the loss of RIC status. Because most of our investments will be in private companies, and therefore will be illiquid, any such dispositions could be made at disadvantageous prices and could result in substantial losses. Moreover, if we fail to maintain RIC tax treatment for any reason and are subject to corporate income tax, the resulting corporate taxes could substantially reduce our net assets, the amount of income available for distribution and the amount of our distributions.

        We may not be able to pay distributions to our stockholders, our distributions may not grow over time, and a portion of distributions paid to our stockholders may be a return of capital, which is a distribution of the stockholders'stockholders’ invested capital.

      We intend to pay distributions to our stockholders out of assets legally available for distribution. We cannot assure you that we will achieve investment results that will allow us to pay a specified level of cash distributions, previously projected distributions for future periods, or year-to-year increases in cash distributions. Our ability to pay distributions might be adversely affected by, among other things, the impact of one or more of the risk factors described herein. In addition, the inability to satisfy the asset coverage test applicable to us as a BDC could limit our ability to pay distributions. All distributions will be paid at the discretion of our Board of Directors and will depend on our earnings, our financial condition, maintenance of our RIC status, compliance with applicable BDC regulations, compliance with our debt covenants each of the Funds' compliance with applicable SBIC regulations and such other factors as our Board of Directors may deem relevant from time to time. We cannot assure you that we will pay distributions to our stockholders in the future.

      When we make distributions, we will be required to determine the extent to which such distributions are paid out of current or accumulated taxable earnings, recognized capital gains or capital. To the extent there is a return of capital, investors will be required to reduce their basis in our stock for U.S. federal income tax purposes, which may result in higher tax liability when the shares are sold, even if they have not increased in value or have lost value. In addition, any return of capital will be net of any sales load and offering expenses


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      associated with sales of shares of our common stock. In the future, our distributions may include a return of capital.

        We may have difficulty paying the distributions requiredare subject to maintain RIC tax treatment under the Coderisks related to corporate social responsibility.

        Our business faces increasing public scrutiny related to environmental, social and governance (“ESG”) activities. We risk damage to our brand and reputation if we recognize income before or without receiving cash representing such income.

             We will include in income certain amounts that we have not yet received in cash, such as: (i) amortization of original issue discount, which may arise if we receive warrants in connection with the origination of a loan such that ascribing a valuefail to the warrants creates original issue discount in the debt instrument, if we investact responsibly in a debt investment at a discount to the par valuenumber of the debt security or possibly in other circumstances; (ii) contractual payment-in-kind, or PIK, interest, which represents contractual interest added to the loan balanceareas, such as diversity and due at the end of the loan term; (iii) contractual preferred dividends, which represents contractual dividends added to the preferred stockinclusion, environmental stewardship, support for local communities, corporate governance and due at the end of the preferred stock term, subject to adequate profitability at the portfolio company; or (iv) amortization of market discount, which is associated with loans purchased in the secondary market at a discount to par value. Such amortization of original issue discounts, increases in loan balances as a result of contractual PIK arrangements, cumulative preferred dividends, or amortization of market discount will be included in income before we receive the corresponding cash payments. We also may be required to include in income certain other amounts before we receive such amounts in cash. Investments structured with these features may represent a higher level of credit risk compared to investments generating income which must be paid in cash on a current basis. For the year ended December 31, 2017, (i) approximately 2.4% of our total investment income was attributable to PIK income not paid currently in cash, (ii) approximately 0.6% of our total investment income was attributable to amortization of original issue discount, (iii) approximately 1.6% of our total investment income was attributable to cumulative dividend income not paid currently in cash,transparency and (iv) approximately 2.9% of our total investment income was attributable to amortization of market discount on loans purchased in the secondary market at a discount.

             Since, in certain cases, we may recognize taxable income before or without receiving cash representing such income, we may have difficulty meeting the Annual Distribution Requirement necessary to maintain RIC tax treatment under the Code. Accordingly, we may have to sell some of our investments at times and/or at prices we would not consider advantageous, raise additional debt or equity capital or forgo new investment opportunities for this purpose. If we are not able to obtain cash from other sources, we may fail to qualify for RIC tax treatment and thus become subject to corporate-level U.S. federal income tax. For additional discussion regarding the tax implications of a RIC, please see "Business — Regulation — Taxation as a Regulated Investment Company."

        We may in the future choose to pay dividendsconsidering ESG factors in our own stock, in which case you may be required to pay tax in excess of the cash you receive.

             We may distribute taxable dividends that are payable in part in our stock. Under certain applicable provisions of the Code and the Treasury regulations, distributions payable by us in cash or in shares of stock (at the stockholders election) would satisfy the Annual Distribution Requirement. The Internal Revenue Service has issued guidance providing that a dividend payable in stock or in cash at the election of the stockholders will be treated as a taxable dividend eligible for the dividends paid deduction provided that at least 20% of the total dividend is payable in cash and certain other requirements are satisfied. Taxable stockholders receiving such dividends will be required to include the full amount of the dividend as ordinary income (or as long-term capital gain to the extent such dividend is properly reported as a capital gain dividend) to the extent of our current and accumulated earnings and profits for U.S. federal income tax purposes. As a result, a U.S. stockholder may be required to pay taxinvestment processes. Adverse incidents with respect to such dividends in excess of any cash received. If a U.S. stockholder sellsESG activities could impact the stock it receives as a dividend in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.


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      Eachvalue of our brand, the Funds, as an SBIC, may be unable to make distributions to us that will enable us to meet or maintain RIC status, which could result in the impositioncost of an entity-level tax.

             In order for us to continue to qualify for RIC tax treatmentour operations and to minimize corporate-level U.S. federal taxes, we will be required to distribute substantiallyrelationships with investors, all of our net ordinary taxable income and net capital gain income, including taxable income from certain of our subsidiaries, which includes the income from the Funds. We will be partially dependent on the Funds for cash distributions to enable us to meet the RIC distribution requirements. The Funds may be limited by SBIC regulations from making certain distributions to us that may be necessary to enable us to maintain our status as a RIC. We may have to request a waiver of the SBA's restrictions for the Funds to make certain distributions to maintain our eligibility for RIC status. We cannot assure you that the SBA will grant such waiver and if the Funds are unable to obtain a waiver, compliance with the SBIC regulations may result in loss of RIC tax treatment and a consequent imposition of an entity-level tax on us.

             In order to satisfy the requirements applicable to a RIC and to minimize corporate-level U.S. federal taxes, we intend to distribute to our stockholders substantially all of our net ordinary taxable income and net capital gain income. We may carry forward excess undistributed taxable income into the next year, net of the 4% U.S. federal excise tax. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax return related to the year which generated such taxable income. As a BDC, we generally are required to meet an asset coverage ratio, as defined in the 1940 Act, of at least 200% immediately after each issuance of senior securities. This requirement limits the amount that we may borrow and may prohibit us from making distributions. Because we will continue to need capital to grow our Investment Portfolio, this limitation may prevent us from incurring debt and require us to raise additional equity at a time when it may be disadvantageous to do so.

             While we expect to be able to borrow and to issue additional debt and equity securities, we cannot assure you that debt and equity financing will be available to us on favorable terms, or at all. In addition, as a BDC, we generally are not permitted to issue equity securities priced below net asset value without stockholder approval. If additional funds are not available to us, we could be forced to curtail or cease new investment activities, and our net asset value could decline.

             The 1940 Act prohibits us from selling shares of our common stock at a price below the current net asset value per share of such stock, with certain exceptions. One such exception is prior stockholder approval of issuances below net asset value provided that our Board of Directors makes certain determinations. We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 2017 annual meeting of stockholders because our common stock price per share had been trading significantly above the net asset value per share of our common stock, and we do not currently expect to seek such approval at our 2018 annual meeting of stockholders for the same reason. We may, however, seek such authorization at future annual or special meetings of stockholders. Our stockholders have previously approved a proposal to authorize us to issue securities to subscribe to, convert to, or purchase shares of our common stock in one or more offerings. Any decision to sell shares of our common stock below the then current net asset value per share of our common stock or securities to subscribe to, convert to, or purchase shares of our common stock would be subject to the determination by our Board of Directors that such issuance is in our and our stockholders' best interests.


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             If we were to sell shares of our common stock below net asset value per share, such sales would result in an immediate dilution to the net asset value per share. This dilution would occur as a result of the sale of shares at a price below the then current net asset value per share of our common stock and a proportionately greater decrease in a stockholder's interest in our earnings and assets and voting interest in us than the increase in our assets resulting from such issuance. In addition, if we issue securities to subscribe to, convert to or purchase shares of common stock, the exercise or conversion of such securities would increase the number of outstanding shares of our common stock. Any such exercise would be dilutive on the voting power of existing stockholders, and could be dilutive with regard to dividends and our net asset value, and other economic aspects of the common stock.

             Because the number of shares of common stock that could be so issued and the timing of any issuance is not currently known, the actual dilutive effect cannot be predicted; however, the example below illustrates the effect of dilution to existing stockholders resulting from the sale of common stock at prices below the net asset value of such shares.

               Illustration: Example of Dilutive Effect of the Issuance of Shares Below Net Asset Value.    Assume that Company XYZ has 1,000,000 total shares outstanding, $15,000,000 in total assets and $5,000,000 in total liabilities. The net asset value per share of the common stock of Company XYZ is $10.00. The following table illustrates the reduction to net asset value, or NAV, and the dilution experienced by Stockholder A following the sale of 40,000 shares of the common stock of Company XYZ at $9.50 per share, a price below its NAV per share.

       
       Prior to Sale
      Below NAV
       Following Sale
      Below NAV
       Percentage
      Change
       

      Reduction to NAV

                

      Total Shares Outstanding

        1,000,000  1,040,000  4.0% 

      NAV per share

       $10.00 $9.98  (0.2)% 

      Dilution to Existing Stockholder

                

      Shares Held by Stockholder A

        10,000  10,000(1) 0.0% 

      Percentage Held by Stockholder A

        1.00%  0.96%  (3.8)% 

      Total Interest of Stockholder A in NAV

       $100,000 $99,808  (0.2)% 

      (1)
      Assumes that Stockholder A does not purchase additional shares in the sale of shares below NAV.

        Changes in laws or regulations governing our operations may adversely affect our business or cause us to alter our business strategy.

             We, the Funds, and our portfolio companies are subject to applicable local, state and federal laws and regulations. New legislation may be enacted or new interpretations, rulings or regulations could be adopted, including those governing the types of investments we are permitted to make, any of which could harm us and our stockholders, potentially with retroactive effect. In addition, any change to the SBA's current debenture SBIC program could have a significant impact on our ability to obtain lower-cost leverage through the Funds, and therefore, our ability to compete with other finance companies.

             Additionally, any changes to the laws and regulations governing our operations relating to permitted investments may cause us to alter our investment strategy in order to avail ourselves of new or different opportunities. Such changes could result in material differences to the strategies and plans set forth herein and may result in our investment focus shifting from the areas of expertise of our investment team to other types of investments in which our investment team may have less expertise or little or no experience. Thus, any such changes, if they occur, could have a material adverse effect on our results of operations and the value of your investment.


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        The Tax Cuts and Jobs Actoperations. Additionally, new regulatory initiatives related to ESG could have a negative effect on us, our subsidiaries, our portfolio companies and the holders of our Securities.

             On December 20, 2017, the U.S. House of Representatives and the U.S. Senate each voted to approve H.R. 1 (the "Tax Cuts and Jobs Act") and, on December 22, 2017, President Trump signed the Tax Cuts and Jobs Act into law. The Tax Cuts and Jobs Act makes significant changes to the United States income tax rules applicable to both individuals and entities, including corporations. The Tax Cuts and Jobs Act includes provisions that, among other things, reduce the U.S. corporate tax rate, introduce a capital investment deduction, limit the interest deduction, limit the use of net operating losses to offset future taxable income and make extensive changes to the U.S. international tax system. The Tax Cuts and Jobs Act is complex and far-reaching, and we cannot predict the impact its enactment will have on us, our subsidiaries, our portfolio companies and the holders of our securities.

        Terrorist attacks, acts of war or natural disasters may affect any market for our securities, impact the businesses in which we invest and harm our business, operating results and financial condition.

             Terrorist acts, acts of war or natural disasters may disrupt our operations, as well as the operations of the businesses in which we invest. Such acts have created, and continue to create, economic and political uncertainties and have contributed to global economic instability. Future terrorist activities, military or security operations, or natural disasters could further weaken the domestic/global economies and create additional uncertainties, which may negatively impact the businesses in which we invest directly or indirectly and, in turn, could have a material adverse impact on our business, operating results and financial condition. Losses from terrorist attacks and natural disasters are generally uninsurable.

        We are highly dependent on information systems and systems failures could significantly disrupt our business, which may, in turn, negatively affect the market price of our common stock and our ability to pay dividends.

             Our business is highly dependent on our and third parties' communications and information systems. Any failure or interruption of those systems, including as a result of the termination of an agreement with any third-party service providers, could cause delays or other problems in our activities. Our financial, accounting, data processing, backup or other operating systems and facilities may fail to operate properly or become disabled or damaged as a result of a number of factors including events that are wholly or partially beyond our control and adversely affect our business. There could be:

          sudden electrical or telecommunications outages;

          natural disasters such as earthquakes, tornadoes and hurricanes;

          events arising from local or larger scale political or social matters, including terrorist acts; and

          cyber attacks.

        The failure in cyber security systems, as well as the occurrence of events unanticipated in our disaster recovery systems and management continuity planning could impair our ability to conduct business effectively.

             The occurrence of a disaster such as a cyber-attack, a natural catastrophe, an industrial accident, a terrorist attack or war, events unanticipated in our disaster recovery systems, or a support failure from external providers, could have an adverse effect on our ability to conduct business and on our results of operations and financial condition, particularly if those events affect our computer-based data processing, transmission, storage, and retrieval systems or destroy data. If a significant number of our managers were unavailable in the event of a disaster, our ability to effectively conduct our business could be severely compromised.


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             We depend heavily upon computer systems to perform necessary business functions. Despite our implementation of a variety of security measures, our computer systems could be subject to cyber-attacks and unauthorized access, such as physical and electronic break-ins or unauthorized tampering. Like other companies, we may experience threats to our data and systems, including malware and computer virus attacks, unauthorized access, system failures and disruptions. If one or more of these events occurs, it could potentially jeopardize the confidential, proprietary and other information processed and stored in, and transmitted through, our computer systems and networks, or otherwise cause interruptions or malfunctions in our operations, which could result in damage to our reputation, financial losses, litigation, increased costs, regulatory penalties and/or customer dissatisfaction or loss.

      RISKS RELATED TO OUR INVESTMENTS

        Our investments in portfolio companies involve higher levels of risk, and we could lose all or part of our investment.

      Investing in our portfolio companies involvesexposes us indirectly to a number of significant risks. Among other things, these companies:

          may have limited financial resources and may be unable to meet their obligations under their debt instruments that we hold, which may be accompanied by a deterioration in the value of any collateral and a reduction in the likelihood of us realizing any guarantees from subsidiaries or affiliates of our portfolio companies that we may have obtained in connection with our investment, as well as a corresponding decrease in the value of the equity components of our investments;

          may have shorter operating histories, narrower product lines, smaller market shares and/or significant customer concentrations than larger businesses, which tend to render them more vulnerable to competitors' actions and market conditions, as well as general economic downturns;

          are more likely to depend on the management talents and efforts of a small group of persons; therefore, the death, disability, resignation, termination or significant under-performance of one or more of these persons could have a material adverse impact on our portfolio company and, in turn, on us;

          generally have less predictable operating results, may from time to time be parties to litigation, may be engaged in rapidly changing businesses with products subject to a substantial risk of obsolescence, and may require substantial additional capital to support their operations, finance expansion or maintain their competitive position;

          generally have less publicly available information about their businesses, operations and financial condition. We are required to rely on the ability of our management team and investment professionals to obtain adequate information to evaluate the potential returns from investing in these companies. If we are unable to uncover all material information about these companies, we may not make a fully informed investment decision, and may lose all or part of our investment; and

          may utilize complex and speculative technologies such as blockchain and cryptocurrencies. These technologies have a limited history; rely on decentralized computer networks which could be affected by Internet connectivity disruptions, fraud or cybersecurity attacks; such networks may not be adequately maintained; future regulatory actions or policies may limit the use of effectiveness of such technologies; and the price of cryptocurrencies is volatile and may be impacted by the popularity, acceptance or use thereof.
      may have limited financial resources and may be unable to meet their obligations under their debt instruments that we hold, which may be accompanied by a deterioration in the value of any collateral and a reduction in the likelihood of us realizing any guarantees from subsidiaries or affiliates of our portfolio companies that we may have obtained in connection with our investment, as well as a corresponding decrease in the value of the equity components of our investments;
      may have shorter operating histories, narrower product lines, smaller market shares and/or significant customer concentrations than larger businesses, which tend to render them more vulnerable to competitors’ actions and market conditions, as well as general economic downturns;
      are more likely to depend on the management talents and efforts of a small group of persons; therefore, the death, disability, resignation, termination or significant under-performance of one or more of these persons could have a material adverse impact on our portfolio company and, in turn, on us;
      generally have less predictable operating results, may from time to time be parties to litigation, may be engaged in rapidly changing businesses with products subject to a substantial risk of obsolescence, and may require substantial additional capital to support their operations, finance expansion or maintain their competitive position; and
      generally have less publicly available information about their businesses, operations and financial condition. We are required to rely on the ability of our management team and investment professionals to obtain adequate information to evaluate the potential returns from investing in these companies. If we are unable to uncover all material information about these companies, we may not make a fully informed investment decision, and may lose all or part of our investment.

      In addition, in the course of providing significant managerial assistance to certain of our portfolio companies, certain of our officers and directors may serve as directors on the boards of such companies. To the extent that litigation arises out of our investments in these companies, our officers and directors may be named as defendants in such litigation, which could result in an expenditure of funds (through our indemnification of such officers and directors) and the diversion of management time and resources.


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        A decline in oil and natural gas prices could have a material adverse effect on us.

             A decline in oil and natural gas prices could adversely affect (i) the credit quality of our debt investments and (ii) the underlying operating performance of our equity investments in energy-related businesses and in portfolio companies located in geographic areas which are more sensitive to the health of the oil and gas industries. A decrease in credit quality and the operating performance would, in turn, negatively affect the fair value of these investments, which would consequently negatively affect our net asset value. Should a decline in oil and natural gas prices persist for an extended period of time, it is likely that the ability of these investments to satisfy financial or operating covenants imposed by us or other lenders will be adversely affected, thereby negatively impacting their financial condition and their ability to satisfy their debt service and other obligations to us. Likewise, should a decline in oil and natural gas prices persist, it is likely that our energy-related portfolio companies' and other affected companies' cash flow and profit generating capacities would also be adversely affected thereby negatively impacting their ability to pay us dividends or distributions on our equity investments.

        We may be exposed to higher risks with respect to our investments that include original issue discount or PIK interest.

      Our investments may include original issue discount and contractual PIK interest, which represents contractual interest added to a loan balance and due at the end of such loan'sloan’s term. To the extent original issue discount or PIK interest constitute a portion of our income, we are exposed to typical risks associated with such income being required to be included in taxable and accounting income prior to receipt of cash, including the following:

          original issue discount and PIK instruments may have higher yields, which reflect the payment deferral and credit risk associated with these instruments;

          original issue discount and PIK accruals may create uncertainty about the source
          original issue discount and PIK instruments may have higher yields, which reflect the payment deferral and credit risk associated with these instruments;

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      Table of our distributions to stockholders;

      original issue discount and PIK instruments may have unreliable valuations because their continuing accruals require continuing judgments about the collectability of the deferred payments and the value of the collateral; and

      original issue discount and PIK instruments may represent a higher credit risk than coupon loans.
      for accounting purposes, cash distributions to investors representing original issue discount income are not derived from paid in capital, although they may be effectively paid from any offering proceeds during any given period; thus, although the source for the cash used to pay a distribution of original issue discount income may come from the cash invested by investors, the 1940 Act does not require that investors be given notice of this fact;
      original issue discount and PIK instruments may have unreliable valuations because their continuing accruals require continuing judgments about the collectability of the deferred payments and the value of the collateral; and
      original issue discount and PIK instruments may represent a higher credit risk than coupon loans; even if the conditions for income accrual under generally accepted accounting principles in the United States of America are satisfied, a borrower could still default when actual payment is due upon the maturity of such loan.

      The lack of liquidity in our investments may adversely affect our business.

      We generally invest in companies whose securities are not publicly traded and whose securities will be subject to legal and other restrictions on resale or will otherwise be less liquid than publicly traded securities. The illiquidity of these investments may make it difficult for us to sell these investments when desired. In addition, if we are required to liquidate all or a portion of our portfolio quickly, we may realize significantly less than the value at which we had previously recorded these investments. As a result, we do not expect to achieve liquidity in our investments in the near-term. Our investments are usually subject to contractual or legal restrictions on resale or are otherwise illiquid because there is usually no established trading market for such investments. The illiquidity of most of our investments may make it difficult for us to dispose of them at a favorable price and, as a result, we may suffer losses.

      We may not have the funds or ability to make additional investments in our portfolio companies. After our initial investment in a portfolio company, we may be called upon from time to time to provide additional funds to such company or have the opportunity to increase our investment through the extension of additional loans, the exercise of a warrant to purchase equity securities, or the funding of additional equity investments. There is no assurance that we will make, or will have sufficient funds to make, follow-on investments. Any decisions not to make a follow-on investment or any inability on our part to make such an investment may


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      have a negative impact on a portfolio company in need of such an investment, may result in a missed opportunity for us to increase our participation in a successful operation, may reduce our ability to protect an existing investment or may reduce the expected yield on the investment.

        Our portfolio companiesThere may incurbe circumstances where our debt that ranks equally with,investments could be subordinated to claims of other creditors or seniorwe could be subject to our investments in such companies.lender liability claims.

             We invest primarily in the secured term debt of LMM, Private Loan and Middle Market companies and equity issued by LMM companies. Our portfolio companies may have, or may be permitted to incur, other debt that ranks equally with, or senior to, the debt in which we invest. By their terms, such debt instruments may entitle the holders to receive payment of interest or principal on or before the dates on which we are entitled to receive payments with respect to the debt instruments in which we invest. Also, in the event of insolvency, liquidation, dissolution, reorganization or bankruptcy of a portfolio company, holders of debt instruments ranking senior to our investment in that portfolio company would typically be entitled to receive payment in full before we receive any distribution. After repaying such senior creditors, such portfolio company may not have any remaining assets to use for repaying its obligation to us. In the case of debt ranking equally with debt instruments in which we invest, we would have to share on an equal basis any distributions with other creditors holding such debt in the event of an insolvency, liquidation, dissolution, reorganization or bankruptcy of the relevant portfolio company.

        There may be circumstances whereEven if our debt investments could be subordinated to claims of other creditors or we could be subject to lender liability claims.

             Even though we may haveinvestment is structured certain of our investments as secured loans, if one of our portfolio companies were to go bankrupt, depending on the facts and circumstances, and based upona senior-secured loan, principles of equitable subordination, as defined by existing case law, could lead a bankruptcy court couldto subordinate all or a portion of our claim to that of other creditors and transfer any lien securing such subordinated claim to the bankruptcy estate. The principles of equitable

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      subordination defined by case law have generally indicated that a claim may be subordinated only if its holder is guilty of misconduct or where the senior loan is re-characterized as an equity investment and the senior lender has actually provided significant managerial assistance to the bankrupt debtor. We may also be subject to lender liability claims for actions taken by us with respect to a borrower'sborrower’s business or instances where we exercise control over the borrower. It is possible that we could become subject to a lender liability claim, including as a result of actions taken in rendering significant managerial assistance or actions to compel and collect payments from the borrower outside the ordinary course of business.

             Certain loans that we make are secured by a second priority security interest in the same collateral pledged by a portfolio company to secure senior debt owed by the portfolio company to commercial banks or other traditional lenders. Often the senior lender has procured covenants from the portfolio company prohibiting the incurrence of additional secured debt without the senior lender's consent. Prior to and as a condition of permitting the portfolio company to borrow money from us secured by the same collateral pledged to the senior lender, the senior lender will require assurances that it will control the disposition of any collateral in the event of bankruptcy or other default. In many such cases, the senior lender will require us to enter into an "intercreditor agreement" prior to permitting the portfolio company to borrow from us. Typically the intercreditor agreements we are requested to execute expressly subordinate our debt instruments to those held by the senior lender and further provide that the senior lender shall control: (1) the commencement of foreclosure or other proceedings to liquidate and collect on the collateral; (2) the nature, timing and conduct of foreclosure or other collection proceedings; (3) the amendment of any collateral document; (4) the release of the security interests in respect of any collateral; and (5) the waiver of defaults


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      under any security agreement. Because of the control we may cede to senior lenders under intercreditor agreements we may enter, we may be unable to realize the proceeds of any collateral securing some of our loans.

             Finally, the value of the collateral securing our debt investment will ultimately depend on market and economic conditions, the availability of buyers and other factors. Therefore, there can be no assurance that the proceeds, if any, from the sale or sales of all of the collateral would be sufficient to satisfy the loan obligations secured by our first or second priority liens. There is also a risk that such collateral securing our investments will decrease in value over time, will be difficult to sell in a timely manner, will be difficult to appraise and will fluctuate in value based upon the success of the portfolio company and market conditions. If such proceeds are not sufficient to repay amounts outstanding under the loan obligations secured by our second priority liens, then we, to the extent not repaid from the proceeds of the sale of the collateral, will only have an unsecured claim against the company's remaining assets, if any.

        We are a non-diversified investment company within the meaning of the 1940 Act, and therefore we are not limited with respect to the proportion of our assets that may be invested in securities of a single issuer.

      We are classified as a non-diversified investment company within the meaning of the 1940 Act, which means that we are not limited by the 1940 Act with respect to the proportion of our assets that we may invest in securities of a single issuer. Under the 1940 Act, a “diversified” investment company is required to invest at least 75% of the value of its total assets in cash and cash items, government securities, securities of other investment companies and other securities limited in respect of any one issuer to an amount not greater than 5% of the value of the total assets of such company and no more than 10% of the outstanding voting securities of such issuer. As a non-diversified investment company, we are not subject to this requirement. To the extent that we assume large positions in the securities of a small number of issuers, our net asset value may fluctuate to a greater extent than that of a diversified investment company as a result of changes in the financial condition or the market'smarket’s assessment of the issuer. We may also be more susceptible to any single economic or regulatory occurrence than a diversified investment company. Beyond our RIC asset diversification requirements, we do not have fixed guidelines for diversification, and our investments could be concentrated in relatively few portfolio companies. See "Risk“Risk Factors — Federal Income Tax Risks Related to Our Business and Structure — We will be subject to corporate-level U.S. federal income tax if we are unable to qualify as a RIC under Subchapter M of the Code."

        We generally will not control our portfolio companies.

      We do not, and do not expect to, control the decision making in many of our portfolio companies, even though we may have board representation or board observation rights, and our debt agreements may contain certain restrictive covenants. As a result, we are subject to the risk that a portfolio company in which we invest will make business decisions with which we disagree and the management of such company will take risks or otherwise act in ways that do not serve our interests as debt investors or minority equity holders. Due to the lack of liquidity for our investments in non-traded companies, we may not be able to dispose of our interests in our portfolio companies as readily as we would like or at an appropriate valuation. As a result, a portfolio company may make decisions that would decrease the value of our portfolio holdings.

        Defaults by our portfolio companies will harm our operating results.

      A portfolio company'scompany’s failure to satisfy financial or operating covenants imposed by us or other lenders could lead to non-payment of interest and other defaults and, potentially, termination of its loans and foreclosure on its secured assets, which could trigger cross-defaults under other agreements and jeopardize a portfolio company'scompany’s ability to meet its obligations under the debt or equity securities that we hold. We may incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms, which may include the waiver of certain financial covenants, with a defaulting portfolio company.

        Any unrealized depreciation we experience in our portfolio may be an indication of future realized losses, which could reduce our income and gains available for distribution.

      As a BDC, we are required to carry our investments at market value or, if no market value is ascertainable, at the fair value as determined in good faith byaccordance with our Board of Directors.Valuation Procedures adopted pursuant to Rule 2a-5 under the 1940 Act. Decreases in the market


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      values or fair values of our investments will be recorded as unrealized depreciation. Any unrealized depreciation in our portfolio could be an indication of a portfolio company'scompany’s inability to meet its repayment obligations to us with respect to affected loans or a potential impairment of the value of affected equity investments.

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      This could result in realized losses in the future and ultimately in reductions of our income and gains available for distribution in future periods.

      We are subject to the risk that the investments we make in our portfolio companies may be repaid prior to maturity. When this occurs, we will generally reinvest these proceeds in temporary investments, pending their future investment in new portfolio companies. These temporary investments will typically have substantially lower yields than the debt being prepaid and we could experience significant delays in reinvesting these amounts. Any future investment in a new portfolio company may also be at lower yields than the debt that was repaid. As a result, our results of operations could be materially adversely affected if one or more of our portfolio companies elect to prepay amounts owed to us. Additionally, prepayments could negatively impact our return on equity, which could result in a decline in the market price of our securities.

             SomeTo the extent we borrow money or issue debt securities or preferred stock to make investments, our net investment income will depend, in part, upon the difference between the rate at which we borrow funds or pay interest or dividends on such debt securities or preferred stock and the rate at which we invest these funds. In addition, many of our debt investments and borrowings have floating interest rates that reset on a periodic basis, and many of our investments are subject to interest rate floors. As a result, a change in market interest rates could have a material adverse effect on

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      our net investment income, in particular with respect to increases from current levels to the level of the interest rate floors on certain investments. In periods of rising interest rates, our cost of funds will increase because the interest rates on the amounts borrowed under our credit facility are floating and are not subject to interest rate floors, which could reduce our net investment income to the extent any debt investments have either fixed interest rates, or floating interest rates subject to an interest rate floor above current levels, and as a result such interest rates on these debt investments will not increase until interest rates exceed the applicable floor.

      Some of our portfolio companies have debt investments which bear interest at variable rates and may be negatively affected by changes in market interest rates. An increase in market interest rates would increase the interest costs and reduce the cash flows of our portfolio companies that have variable rate debt instruments, a situation which could reduce the value of the investment.our investments in these portfolio companies. The value of our investmentssecurities could also be reduced from an increase in market interest rates as rates available to investors could make an investment in our securities less attractive than alternative investments. In addition, an increase in interest rates would make it more expensive for us to use debt to finance our investments. As a result, a significant increase in market interest rates could increase our cost of capital, which would reduce our net investment income. Conversely, decreases in market interest rates could negatively impact the interest income from our variable rate debt investments. A decrease in market interest rates may also have an adverse impact on our returns by requiring us to accept lower yields on our debt investments and by increasing the risk that our portfolio companies will prepay our debt investments, resulting in the need to redeploy capital at potentially lower rates. See further discussion and analysis at “Item 7A. Quantitative and Qualitative Disclosures about Market Risk”.

      Certain investments that we have made in the past and may make in the future include warrants or other equity securities. Investments in equity securities involve a number of significant risks, including the risk of further dilution as a result of additional issuances, inability to access additional capital and failure to pay current distributions. Investments in preferred securities involve special risks, such as the risk of deferred distributions, credit risk, illiquidity and limited voting rights. In addition, we may from time to time make non-control, equity investments in portfolio companies. Our goal is ultimately to realize gains upon our disposition of such equity interests. However, the equity interests we receive may not appreciate in value and, in fact, may decline in value. Accordingly, we may not be able to realize gains from our equity interests, and any gains that we do realize on the disposition of any equity interests may not be sufficient to offset any other losses we experience. We also may be unable to realize any value if a portfolio company does not have a liquidity event, such as a sale of the business, recapitalization or public offering, which would allow us to sell the underlying equity interests. We often seek puts or similar rights to give us the right to sell our equity securities back to the portfolio company issuer; however, we may be unable to exercise these put rights for the consideration provided in our investment documents if the issuer is in financial distress.


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        Our investments in foreign securities may involve significant risks in addition to the risks inherent in U.S. investments.

             Our investments in foreign securities may involve significant risks in addition to the risks inherent in investments in U.S. securities. Our investment strategy contemplates potential investments in debt securities of foreign companies. Investing in foreign companies may expose us to additional risks not typically associated with investing in securities of U.S. companies. These risks include changes in exchange control regulations, political and social instability, expropriation, imposition of foreign taxes, less liquid markets and less available information than is generally the case in the U.S., higher transaction costs, less government supervision of exchanges, brokers and issuers, less developed bankruptcy laws,

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      difficulty in enforcing contractual obligations, lack of uniform accounting and auditing standards and greater price volatility.

      Although most of our investments will be U.S. dollar denominated, any investments denominated in a foreign currency will be subject to the risk that the value of a particular currency will change in relation to one or more other currencies. Among the factors that may affect currency values are trade balances, the level of short-term interest rates, differences in relative values of similar assets in different currencies, long-term opportunities for investment and capital appreciation, and political developments.

      RISKS RELATINGRELATED TO LEVERAGE

      Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us.

      Borrowings, also known as leverage, magnify the potential for loss on investments in our indebtedness and gain or loss on investments in our equity capital. As we use leverage to partially finance our investments, you will experience increased risks of investing in our securities. Accordingly, any event that adversely affects the value of an investment would be magnified to the extent we use leverage. Such events could result in a substantial loss to us, which would be greater than if leverage had not been used. In addition, our investment objectives are dependent on the continued availability of leverage at attractive relative interest rates.

      We may also borrow from banks and other lenders and may issue debt securities or enter into other types of borrowing arrangements in the future. Lenders of these senior securities will have fixed dollar claims on our assets that are superior to the claims of our common stockholders, and we would expect such lenders to seek recovery against our assets in the event of a default. We have the ability to pledge up to 100% of our assets and can grant a security interest in all of our assets under the terms of any debt instruments we could enter into with lenders. The terms of our existing indebtedness require us to comply with certain financial and operational covenants, and we expect similar covenants in future debt instruments. Failure to comply with such covenants could result in a default under the applicable credit facility or debt instrument if we are unable to obtain a waiver from the applicable lender or holder, and such lender or holder could accelerate repayment under such indebtedness and negatively affect our business, financial condition, results of operations and cash flows. In addition, under the terms of any credit facility or other debt instrument we enter into, in the event of a default, we are likely to be required by its terms to use the net proceeds of any investments that we sell to repay a portion of the amount borrowed under such facility or instrument before applying such net proceeds to any other uses. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources — Capital Resources” for a discussion regarding our outstanding indebtedness.

      If the value of our assets decreases, leveraging would cause net asset value to decline more sharply than it otherwise would have had we not leveraged our business. Similarly, any decrease in our income would cause net investment income to decline more sharply than it would have had we not leveraged our business. Such a decline could negatively affect our ability to pay common stock dividends, scheduled debt payments or other payments related to our securities.

      Illustration. The following table illustrates the effect of leverage on returns from an investment in our common stock assuming various annual returns, net of expenses. The calculations in the table below are hypothetical and actual returns may be higher or lower than those appearing below.

      Assumed Return on Our Portfolio(1)

      (net of expenses)

      (10.0)

      %

      (5.0)

      %

      0.0

      %

      5.0

      %

      10.0

      %

      Corresponding Net Return to Common Stock Holder(2)

      (24.2)

      %

      (13.9)

      %

      (3.6)

      %

      6.7

      %

      17.0

      %


      (1)

      Assumes, as of December 31, 2021, $3,690.3 million in total assets, $1,805.0 million in debt outstanding, $1,788.8 million in net assets, and a weighted-average interest rate of 3.3%. Actual interest payments may be different.

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      (2)

      In order for us to cover our annual interest payments on indebtedness, we must achieve annual returns on our December 31, 2021 total assets of at least 1.7%.

      Our ability to achieve our investment objective may depend in part on our ability to access additional leverage on favorable terms and there can be no assurance that such additional leverage can in fact be achieved. If we are unable to obtain leverage or if the interest rates of such leverage are not attractive, we could experience diminished returns. The number of leverage providers and the total amount of financing available could decrease or remain static.

      All of our assets are subject to security interests under our senior securities and if we default on our obligations under our senior securities, we may suffer adverse consequences, including foreclosure on our assets.

      Substantially all of our assets are currently pledged as collateral under our senior securities, including any credit facilities or notes. If we default on our obligations under our senior securities, our lenders may have the right to foreclose upon and sell, or otherwise transfer, the collateral subject to their security interests or their superior claim. In such event, we may be forced to sell our investments to raise funds to repay our outstanding borrowings in order to avoid foreclosure and these forced sales may be at times and at prices we would not consider advantageous. Moreover, such deleveraging of our company could significantly impair our ability to effectively operate our business in the manner in which we have historically operated. As a result, we could be forced to curtail or cease new investment activities and lower or eliminate the dividends that we have historically paid to our stockholders. In addition, if the lenders exercise their right to sell the assets pledged under our senior securities, such sales may be completed at distressed sale prices, thereby diminishing or potentially eliminating the amount of cash available to us after repayment of the amounts outstanding under the senior securities.

      If our operating performance declines and we are not able to generate sufficient cash flow to service our debt obligations, we may in the future need to refinance or restructure our debt, sell assets, reduce or delay capital investments, seek to raise additional capital or seek to obtain waivers from the required lenders under our senior securities to avoid being in default. If we are unable to implement one or more of these alternatives, we may not be able to meet our payment obligations under our senior securities. If we breach our covenants under our senior securities and seek a waiver, we may not be able to obtain a waiver from the required lenders or debt holders. If this occurs, we would be in default under our senior securities, the lenders or debt holders could exercise their rights as described above, and we could be forced into bankruptcy or liquidation. If we are unable to repay debt, lenders having secured obligations could proceed against the collateral securing the debt. Because certain of our senior securities have customary cross-default provisions, if the indebtedness under our senior securities is accelerated, we may be unable to repay or finance the amounts due.

      We have received Board approval that will allow us to incur additional leverage, which could increase the risk of investing in our securities.

      The 1940 Act generally prohibits us from incurring indebtedness unless immediately after such borrowing we have an asset coverage for total borrowings of at least 200% (i.e., the amount of debt may not exceed 50% of the value of our assets). However, legislation passed in March 2018 modified the 1940 Act by allowing a BDC to increase the maximum amount of leverage it may incur by lowering the required asset coverage ratio of 200% to an asset coverage ratio of 150% (i.e., the amount of debt may not exceed 662/3% of the value of our assets), if certain requirements are met.

      On February 23, 2022, our Board of Directors unanimously approved the application of the modified asset coverage requirements set described above. As a result, our asset coverage requirement for senior securities will be changed from 200% to 150%, effective February 23, 2023. The Board has also recommended that a proposal to approve the application of the 150% minimum asset coverage requirement be submitted for approval at our 2022 Annual Meeting of Stockholders. If stockholders approve this proposal, the Company would become subject to the 150% minimum asset coverage ratio the day after the 2022 Annual Meeting of Stockholders. The Board values the opinions of our stockholders and will reconvene to reconsider its approval of the modified asset coverage requirements if this proposal is not approved by stockholders. There can be no assurance that the Board would rescind its approval if this proposal is not

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      approved by stockholders. If this proposal is not approved by the stockholders and the Board does not rescind its approval, we will be subject to the 150% asset coverage ratio, beginning February 23, 2023.

      RISKS RELATED TO OUR SECURITIESINVESTMENT MANAGEMENT ACTIVITIES

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      governing our operations relating to permitted investments may cause us to alter our investment strategy in order to avail ourselves of new or different opportunities. Such changes could result in material differences to the strategies and plans set forth herein and may result in our investment focus shifting from the areas of expertise of our investment team to other types of investments in which our investment team may have less expertise or little or no experience. Thus, any such changes, if they occur, could have a material adverse effect on our results of operations and the value of your investment.

      Failure to maintain our status as a BDC would reduce our operating flexibility.

      If we do not remain a BDC, we might be regulated as a closed-end investment company under the 1940 Act, which would subject us to substantially more regulatory restrictions under the 1940 Act and correspondingly decrease our operating flexibility.

      Operating under the constraints imposed on us as a BDC and RIC may hinder the achievement of our investment objectives.

      The 1940 Act and the Code impose numerous constraints on the operations of BDCs and RICs that do not apply to certain of the other investment vehicles that we may compete with. BDCs are required, for example, to invest at least 70% of their total assets in certain qualifying assets, including U.S. private or thinly traded public companies, cash, cash equivalents, U.S. government securities and other high-quality debt instruments that mature in one year or less from the date of investment. Moreover, qualification for taxation as a RIC requires satisfaction of source-of-income, asset diversification and distribution requirements. Operating under these constraints may hinder our ability to take advantage of attractive investment opportunities and to achieve our investment objective. Any failure to do so could subject us to enforcement action by the SEC, cause us to fail to satisfy the requirements associated with RIC status and subject us to entity-level corporate income taxation, cause us to fail the 70% test described above or otherwise have a material adverse effect on our business, financial condition or results of operations.

      Regulations governing our operation as a BDC will affect our ability to, and the way in which we, raise additional capital.

      Our business will require capital to operate and grow. We may acquire such additional capital from the following sources:

      Senior Securities. We may issue debt securities or preferred stock and/or borrow money from banks or other financial institutions, which we refer to collectively as senior securities. As a result of issuing senior securities, we will be exposed to additional risks, including the following:

      Under the provisions of the 1940 Act, we are permitted, as a BDC, to issue senior securities only in amounts such that our asset coverage, as defined in the 1940 Act, equals at least 200% (or 150% if certain requirements are met) immediately after each issuance of senior securities. If the value of our assets declines, we may be unable to satisfy this test. If that happens, we will be prohibited from issuing debt securities or preferred stock and/or borrowing money from banks or other financial institutions and may not be permitted to declare a dividend or make any distribution to stockholders or repurchase shares until such time as we satisfy this test.
      Any amounts that we use to service our debt or make payments on preferred stock will not be available for dividends to our common stockholders.
      It is likely that any senior securities or other indebtedness we issue will be governed by an indenture or other instrument containing covenants restricting our operating flexibility. Additionally, some of these securities or other indebtedness may be rated by rating agencies, and in obtaining a rating for such securities and other indebtedness, we may be required to abide by operating and investment guidelines that further restrict operating and financial flexibility.

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      We and, indirectly, our stockholders will bear the cost of issuing and servicing such securities and other indebtedness.
      Preferred stock or any convertible or exchangeable securities that we issue in the future may have rights, preferences and privileges more favorable than those of our common stock, including separate voting rights and could delay or prevent a transaction or a change in control to the detriment of the holders of our common stock.
      Any unsecured debt issued by us would generally rank (i) pari passu with our current and future unsecured indebtedness and effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, and (ii) structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries.

      Additional Common Stock. We are not generally able to issue and sell our common stock at a price below net asset value per share. We may, however, sell our common stock, warrants, options or rights to acquire our common stock, at a price below the current net asset value of the common stock if our Board of Directors determines that such sale is in the best interests of our stockholders, and our stockholders approve such sale. See “Risk Factors – Risks Related to our Securities — Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock” for a discussion of the risks related to us issuing shares of our common stock below net asset value. Our stockholders have authorized us to issue warrants, options or rights to subscribe for, convert to, or purchase shares of our common stock at a price per share below the net asset value per share, subject to the applicable requirements of the 1940 Act. There is no expiration date on our ability to issue such warrants, options, rights or convertible securities based on this stockholder approval. If we raise additional funds by issuing more common stock or senior securities convertible into, or exchangeable for, our common stock, the percentage ownership of our stockholders at that time would decrease, and they may experience dilution. Moreover, we can offer no assurance that we will be able to issue and sell additional equity securities in the future, on favorable terms or at all.

      RISKS RELATED TO OUR SECURITIES

      Investing in our securities may involve a high degree of risk.

      The investments we make in accordance with our investment objective may result in a higher amount of risk than alternative investment options and a higher risk of volatility or loss of principal. Our investments in portfolio companies involve higher levels of risk, and therefore, an investment in our securities may not be suitable for someone with lower risk tolerance.

      Shares of closed-end investment companies, including BDCs, may trade at a discount to their net asset value.

      Shares of closed-end investment companies, including BDCs, may trade at a discount to net asset value. This characteristic of closed-end investment companies and BDCs is separate and distinct from the risk that our net asset value per share may decline. We cannot predict whether our common stock will trade at, above or below net asset value. In addition, if our common stock trades below our net asset value per share, we will generally not be able to issue additional common stock at the market price unless our stockholders approve such a sale and our Board of Directors makes certain determinations. See "—“Risk Factors — Risks RelatingRelated to Our Business and Structureour Securities — Stockholders may incur dilution if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or issue securities to subscribe to, convert to or purchase shares of our common stock"stock” for a discussion related to us issuing shares of our common stock below net asset value.

      We may be unable to invest a significant portion of the net proceeds from an offering or from exiting an investment or other capital on acceptable terms, which could harm our financial condition and operating results.39


             Delays in investing the net proceeds raised in an offering or other capital raised or proceeds resulting from exiting an investment may cause our performance to be worse than that of other fully invested BDCs or other lenders or investors pursuing comparable investment strategies. We cannot assure you that we will be able to identify any investments that meet our investment objective or that any investment that we make will produce a positive return. We may be unable to invest the net proceeds of any offering or other capital raised or proceeds resulting from exiting an investment on acceptable terms within the time period that we anticipate or at all, which could harm our financial condition and operating results.

             We anticipate that, depending on market conditions and the amount of the capital, it may take us a substantial period of time to invest substantially all the capital in securities meeting our investment objective. During this period, we may invest the capital primarily in Marketable securities and idle funds investments, which generally consist of debt investments, independently rated debt investments, certificates of deposit with financial institutions, diversified bond funds and publicly traded debt and equity investments and may produce returns that are significantly lower than the returns which we expect to achieve when our portfolio is fully invested in securities meeting our investment objective. As a result, any distributions that we pay during such period may be substantially lower than the distributions that we may be able to pay when our portfolio is fully invested in securities meeting our investment objective. In addition, until such time as the net proceeds


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      of any offering or from exiting an investment or other capital are invested in new securities meeting our investment objective, the market price for our securities may decline. Thus, the initial return on your investment may be lower than when, if ever, our portfolio is fully invested in securities meeting our investment objective.

             The investments we make in accordance with our investment objective may result in a higher amount of risk than alternative investment options and a higher risk of volatility or loss of principal. Our investments in portfolio companies involve higher levels of risk, and therefore, an investment in our securities may not be suitable for someone with lower risk tolerance.

      Fluctuations in the trading prices of our securities may adversely affect the liquidity of the trading market for our securities and, if we seek to raise capital through future securities offerings, our ability to raise such capital. The market price and liquidity of the market for our securities may be significantly affected by numerous factors, some of which are beyond our control and may not be directly related to our operating performance. These factors include:

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      common stock in one or more offerings. Any decision to sell shares of our common stock below the then current net asset value per share of our common stock or securities to subscribe to, convert to, or purchase shares of our common stock would be subject to the determination by our Board of Directors that such issuance is in our and our stockholders’ best interests.

      If we were to sell shares of our common stock below net asset value per share, such sales would result in an immediate dilution to the net asset value per share. This dilution would occur as a result of the sale of shares at a price below the then current net asset value per share of our common stock and otherwise negatively impacta proportionately greater decrease in a stockholder’s interest in our earnings and assets and voting interest in us than the market priceincrease in our assets resulting from such issuance. In addition, if we issue securities to subscribe to, convert to or purchase shares of common stock, the exercise or conversion of such securities would increase the number of outstanding shares of our common stock;

      inabilitystock. Any such exercise would be dilutive on the voting power of existing stockholders and could be dilutive with regard to obtaindividends and our net asset value, and other economic aspects of the common stock.

      Because the number of shares of common stock that could be so issued and the timing of any exemptive relief that mayissuance is not currently known, the actual dilutive effect cannot be required by us inpredicted; however, the futureexample below illustrates the effect of dilution to existing stockholders resulting from the SEC;

      losssale of our BDC or RIC status or anycommon stock at prices below the net asset value of such shares.

      Illustration: Example of Dilutive Effect of the Funds' status as an SBIC;

      changesIssuance of Shares Below Net Asset Value. Assume that Company XYZ has 1,000,000 total shares outstanding, $15,000,000 in our earningstotal assets and $5,000,000 in total liabilities. The net asset value per share of the common stock of Company XYZ is $10.00. The following table illustrates the reduction to net asset value, or variations in our operating results;

      changes inNAV, and the valuedilution experienced by Stockholder A following the sale of our portfolio40,000 shares of investments;

      any shortfall in our investment income or net investment income or any increase in losses from levels expected by investors or securities analysts;

      lossthe common stock of Company XYZ at $9.50 per share, a major funding source;

      fluctuations in interest rates;

      the operating performance of companies comparable to us;

      departure of our key personnel;

      global or national credit market changes; and

      general economic trends and other external factors.

      The Maryland General Corporation Law and our articles of incorporation and bylaws contain provisions that may have the effect of discouraging, delaying or making difficult a change in control of our company or the removal of our incumbent directors. The existence of these provisions, among others, may have a negative


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      impact on the price of our common stock and may discourage third-party bids for ownership of our company. These provisions may prevent any premiums being offered to you for our common stock.

        We may in the future determine to issue preferred stock, which could adversely affect the market value of our common stock.

        The issuance of shares of preferred stock with dividend or conversion rights, liquidation preferences or other economic terms favorable to the holders of preferred stock could adversely affect the market price for our common stock by making an investment in the common stock less attractive. In addition, the dividends on any preferred stock we issue must be cumulative. Payment of dividends and repayment of the liquidation preference of preferred stock must take

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      preference over any dividends or other payments to our common stockholders, and holders of preferred stock are not subject to any of our expenses or losses and are not entitled to participate in any income or appreciation in excess of their stated preference (other than convertible preferred stock that converts into common stock). In addition, under the 1940 Act, preferred stock constitutes a “senior security” for purposes of the asset coverage test.

      The Notes are unsecured and therefore effectively subordinated to any current or future secured indebtedness, including indebtedness under the Credit Facility.indebtedness.

      The Notes are not secured by any of our assets or any of the assets of our subsidiaries and rank equally in right of payment with all of our existing and future unsubordinated, unsecured indebtedness. As a result, the Notes are effectively subordinated to any secured indebtedness we or our subsidiaries have currently incurred and may incur in the future (or any indebtedness that is initially unsecured to which we subsequently grant security) to the extent of the value of the assets securing such indebtedness. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our existing or future secured indebtedness and the secured indebtedness of our subsidiaries may assert rights against the assets pledged to secure that indebtedness in order to receive full payment of their indebtedness before the assets may be used to pay other creditors, including the holders of the Notes. As of December 31, 2017, we had $64.0 million outstanding under the Credit Facility out of $585.0 million in commitments. The indebtedness under the Credit Facility is senior to the Notes to the extent of the value of the assets securing such indebtedness.

      The Notes are obligations exclusively of Main Street Capital Corporation and not of any of our subsidiaries. None of our subsidiaries is a guarantor of the Notes, and the Notes are not required to be guaranteed by any subsidiaries we may acquire or create in the future. In addition, several of our subsidiaries, specifically the Funds, maintain significant indebtedness and as a result the Notes are structurally subordinated to the indebtedness of these subsidiaries. For example, as of December 31, 2017, the Funds had collectively issued $295.8 million of the current statutory maximum of $350.0 million of SBA-guaranteed debentures, which are included in our consolidated financial statements. The assets of such subsidiaries are not directly available to satisfy the claims of our creditors, including holders of the Notes. See "Management's Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources" for more detail on the SBA-guaranteed debentures.

      Except to the extent we are a creditor with recognized claims against our subsidiaries, all claims of other creditors of our subsidiaries have priority over our equity interests in such subsidiaries (and therefore the claims of our creditors, including holders of the Notes) with respect to the assets of such subsidiaries. Even if we are recognized as a creditor of one or more of our subsidiaries, our claims would still be effectively subordinated to any security interests in the assets of any such subsidiary and to any indebtedness or other liabilities of any such subsidiary senior to our claims. Consequently, the Notes are structurally subordinated to all indebtedness including the SBA-guaranteed debentures, and other liabilities of any of our subsidiaries and any subsidiaries that we may in the future acquire or establish. In addition, our subsidiaries may incur substantial additional indebtedness in the future, all of which would be structurally senior to the Notes.

      The Notes may or may not have an established trading market. If a trading market in the Notes is developed, it may not be maintained. If the Notes are traded, they may trade at a discount to their initial offering price depending on prevailing interest rates, the market for similar securities, our credit ratings, our financial condition or other relevant factors. Accordingly, we cannot assure you that a liquid trading market has been or will develop for the Notes, that you will be able to sell your Notes at a particular time or that the price you receive when you sell will be favorable. To the extent an active trading market does not develop or is not maintained, the liquidity and trading price for the Notes may be harmed. Accordingly, you may be required to bear the financial risk of an investment in the Notes for an indefinite period of time.


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        A downgrade, suspension or withdrawal of the credit rating assigned by a rating agency to us or the Notes, if any, or change in the debt markets could cause the liquidity or market value of the Notes to decline significantly.

      Our credit ratings are an assessment by rating agencies of our ability to pay our debts when due. Consequently, real or anticipated changes in our credit ratings will generally affect the market value of the Notes. These credit ratings may not reflect the potential impact of risks relating to the structure or marketing of the Notes. Credit ratings are not a recommendation to buy, sell or hold any security, and may be revised or withdrawn at any time by the issuing organization in its sole discretion. We undertake no obligation to maintain our credit ratings or to advise holders of

      42


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      Notes of any changes in our credit ratings. The Notes are currently rated by Standard & Poor's Ratings Services. There can be no assurance that our credit ratings will remain for any given period of time or that such credit ratings will not be lowered or withdrawn entirely by the rating agency if in their judgment future circumstances relating to the basis of the credit ratings, such as adverse changes in our company, so warrant. Downgrades to the credit rating assigned to us or our securities could increase our cost of capital or otherwise have a negative effect on our results of operations and financial condition. The conditions of the financial markets and prevailing interest rates have fluctuated in the past and are likely to fluctuate in the future, which could have an adverse effect on the market prices of the Notes.

      The indentures under which the Notes were issued offer limited protection to holders of the Notes. The terms of the indentures and the Notes do not restrict our or any of our subsidiaries'subsidiaries’ ability to engage in, or otherwise be a party to, a variety of corporate transactions, circumstances or events that could have an adverse impact on investments in the Notes. In particular, the terms of the indentures and the Notes do not place any restrictions on our or our subsidiaries'subsidiaries’ ability to:

      issue securities or otherwise incur additional indebtedness or other obligations, including (1) any indebtedness or other obligations that would be equal in right of payment to the Notes, (2) any indebtedness or other obligations that would be secured and therefore rank effectively senior in right of payment to the Notes to the extent of the values of the assets securing such debt, (3) indebtedness of ours that is guaranteed by one or more of our subsidiaries and which therefore is structurally senior to the Notes and (4) securities, indebtedness or obligations issued or incurred by our subsidiaries that would be senior to our equity interests in our subsidiaries and therefore rank structurally senior to the Notes with respect to the assets of our subsidiaries, in each case other than an incurrence of indebtedness or other obligation that would cause a violation of Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act or any successor provisions, but giving effect, in each case, to any exemptive relief granted to us by the SEC (currently, this provision generally prohibits us from making additional borrowings, including through the issuance of additional debt or the sale of additional debt securities, unless our asset coverage, as defined in the 1940 Act, equals at least 200% (or 150% if certain requirements are met) after such borrowings);
      pay dividends on, or purchase or redeem or make any payments in respect of, capital stock or other securities ranking junior in right of payment to the Notes, including subordinated indebtedness;
      sell assets (other than certain limited restrictions on our ability to consolidate, merge or sell all or substantially all of our assets);
      enter into transactions with affiliates;
      create liens (including liens on the shares of our subsidiaries) or enter into sale and leaseback transactions;
      make investments; or
      create restrictions on the payment of dividends or other amounts to us from our subsidiaries.

      Furthermore, the terms of the indentures and the Notes do not protect holders of the Notes in the event that we experience changes (including significant adverse changes) in our financial condition, results of


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      operations or credit ratings, if any, as they do not require that we or our subsidiaries adhere to any financial tests or ratios or specified levels of net worth, revenues, income, cash flow or liquidity.

      Our ability to recapitalize, incur additional debt and take a number of other actions that are not limited by the terms of the Notes may have important consequences for you as a holderholders of the Notes, including making it more difficult for us to satisfy our obligations with respect to the Notes or negatively affecting the trading value of the Notes.

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      Other debt we issue or incur in the future could contain more protections for its holders than the indentures and the Notes, including additional covenants and events of default. For example, the indentures under which the Notes are issued do not contain cross-default provisions that are contained in the Credit Facility. The issuance or incurrence of any such debt with incremental protections could affect the market for and trading levels and prices of the Notes.

      The 4.50% Notes are redeemable in whole or in part upon certain conditions at any time or from time to time at our option. The 6.125% Notes are redeemable in whole or in part upon certain conditions at any time or from time to time at our option, on or after April 1, 2018. We may choose to redeem the Notes at times when prevailing interest rates are lower than the interest rate paid on the Notes. In this circumstance, you may not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as the Notes being redeemed.

      We may not be able to repurchase the 4.50% Notes upon certain change in control events described in the indenturesagreement under which the 4.50% Notes were issued (each, a "Change“Change of Control Repurchase Event"Event”) because we may not have sufficient funds. Upon a Change of Control Repurchase Event, holders of the 4.50% Notes may require us to repurchase for cash some or all of the 4.50% Notes at a repurchase price equal to 100% of the aggregate principal amount of the 4.50% Notes being repurchased, plus accrued and unpaid interest to, but not including, the repurchase date. The terms of our Credit Facility provide that certain change of control events will constitute an event of default thereunder entitling the lenders to accelerate any indebtedness outstanding under our Credit Facility at that time and to terminate the Credit Facility. In addition, the occurrence of a Change of Control Repurchase Event enabling the holders of the 4.50% Notes to require the mandatory purchase of the 4.50% Notes would constitute an event of default under our Credit Facility entitling the lenders to accelerate any indebtedness outstanding under our Credit Facility at that time and to terminate the Credit Facility. Our and our subsidiaries'subsidiaries’ future financing facilities may contain similar restrictions and provisions. Our failure to purchase such tendered 4.50% Notes upon the occurrence of such Change of Control Repurchase Event would cause an event of default under the indentures governing the 4.50% Notes and a cross-default under the agreements governing certain of our other indebtedness, which may result in the acceleration of such indebtedness requiring us to repay that indebtedness immediately. If a Change of Control Repurchase Event were to occur, we may not have sufficient funds to repay any such accelerated indebtedness.

             As of December 31, 2017, we had approximately $810.5 million of indebtedness, including $64.0 million outstanding under the Credit Facility, $295.8 million outstanding from SBA-guaranteed debentures, approximately $90.7 million of the 6.125% Notes, $175.0 million of the 4.50% Notes due 2019 and $185.0 million of the 4.50% Notes due 2022 outstanding. Any default under the agreements governing our indebtedness, including a default under the Credit Facility, under the Notes or under other indebtedness to which we may be a party that is not waived by the required lenders or debt holders, and the remedies sought by the holders of such indebtedness could make us unable to pay principal, premium, if any, and interest on


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      the Notes and substantially decrease the market value of the Notes. If we are unable to generate sufficient cash flow and are otherwise unable to obtain funds necessary to meet required payments of principal, premium, if any, and interest on our indebtedness, or if we otherwise fail to comply with the various covenants, including financial and operating covenants, in the instruments governing our indebtedness, we could be in default under the terms of the agreements governing such indebtedness. In the event of such default, the holders of such indebtedness could elect to declare all the funds borrowed thereunder to be due and payable, together with accrued and unpaid interest, the lenders under the Credit Facility or other debt we may incur in the future could elect to terminate their commitments, cease making further loans and institute foreclosure proceedings against our assets, and we could be forced into bankruptcy or liquidation. Our ability to generate sufficient cash flow in the future is, to some extent, subject to general economic, financial, competitive, legislative and regulatory factors as well as other factors that are beyond our control. We cannot assure you that our business will generate cash flow from operations, or that future borrowings will be available to us under the Credit Facility or otherwise, in an amount sufficient to enable us to meet our payment obligations under the Notes and our other debt and to fund other liquidity needs.

             IfRISKS RELATED TO OUR SBIC FUNDS

      We, through the Funds, issue debt securities guaranteed by the SBA and sold in the capital markets. As a result of its guarantee of the debt securities, the SBA has fixed dollar claims on the assets of the Funds that are superior to the claims of our operating performance declinessecurities holders.

      We, through the Funds, have outstanding SBIC debentures guaranteed by the SBA. The debentures guaranteed by the SBA have a maturity of ten years from the date of issuance and we are not ablerequire semiannual payments of interest. We will need to generate sufficient cash flow to service our debt obligations, we may inmake required interest payments on the future need to refinance or restructure our debt, including the Notes, sell assets, reduce or delay capital investments, seek to raise additional capital or seek to obtain waivers from the required lenders under the Credit Facility or the required holders of the Notes or other debt that we may incur in the future to avoid being in default.debentures. If we are unable to implement onemeet the

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      financial obligations under the debentures, the SBA, as a creditor, will have a superior claim to the assets of the Funds over our securities holders in the event we liquidate or the SBA exercises its remedies under such debentures as the result of a default by us.

      The Funds are licensed by the SBA, and therefore subject to SBIC regulations.

      The Funds, our wholly owned subsidiaries, are licensed to act as SBICs and are regulated by the SBA. The SBA also places certain limitations on the financing terms of investments by SBICs in portfolio companies and prohibits SBICs from providing funds for certain purposes or to businesses in a few prohibited industries. Compliance with SBA requirements may cause the Funds to forego attractive investment opportunities that are not permitted under SBIC regulations.

      Further, the SBIC regulations require, among other things, that a licensed SBIC be periodically examined by the SBA and audited by an independent auditor, in each case to determine the SBIC’s compliance with the relevant SBIC regulations. The SBA prohibits, without prior SBA approval, a “change of control” of an SBIC or transfers that would result in any person (or a group of persons acting in concert) owning 10% or more of these alternatives, we may not be ablea class of capital stock of a licensed SBIC. If the Funds fail to meet our payment obligations undercomply with applicable SBIC regulations, the NotesSBA could, depending on the severity of the violation, limit or prohibit their use of SBIC debentures, declare outstanding SBIC debentures immediately due and our other debt. If we breach our covenants underpayable, and/or limit them from making new investments. In addition, the Credit Facility,SBA can revoke or suspend a license for willful or repeated violation of, or willful or repeated failure to observe, any provision of the NotesSmall Business Investment Act of 1958 or other debt and seek a waiver, we may not be able to obtain a waiver fromany rule or regulation promulgated thereunder. Such actions by the required lenders or debt holders. If this occurs, weSBA would, be in default underturn, negatively affect us.

      Each of the Credit Facility, the Notes or other debt, the lenders or debt holders could exercise their rightsFunds, as described above, and we could be forced into bankruptcy or liquidation. If we are unable to repay debt, lenders having secured obligations could proceed against the collateral securing the debt. Because the Credit Facility has, and any future credit facilities will likely have, customary cross-default provisions, if the indebtedness under the Notes, the Credit Facility or under any future credit facility is accelerated, wean SBIC, may be unable to repaymake distributions to us that will enable us to meet or finance the amounts due.

      Item 1B.    Unresolved Staff Comments

             None.

      Item 2.    Properties

             We do not own any real estate or other physical properties materially important to our operations. Currently, we lease office space in Houston, Texas for our corporate headquarters.

      Item 3.    Legal Proceedings

             We may, from time to time, be involved in litigation arising out of our operationsmaintain RIC status, which could result in the normal courseimposition of business or otherwise. Furthermore, third parties may seekan entity-level tax.

      In order for us to impose liability on us in connection with the activities of our portfolio companies. While the outcome of any current legal proceedings cannot at this time be predicted with certainty, we do not expect any current matters will materially affect our financial condition or results of operations; however, there can be no assurance whether any pending legal proceedings will have a material adverse effect on our financial condition or results of operations in any future reporting period.

      Item 4.    Mine Safety Disclosures

             Not applicable.


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      PART II

      Item 5.    Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

      PRICE RANGE OF COMMON STOCK, HOLDERS AND DISTRIBUTIONS

             Our common stock is traded on the New York Stock Exchange ("NYSE") under the symbol "MAIN." Priorcontinue to October 14, 2010, our common stock was traded on the NASDAQ Global Select Market under the same symbol "MAIN." Our common stock began trading on the NASDAQ Global Select Market on October 5, 2007. Prior to that date, there was no established public trading market for our common stock.

             The following table sets forth, for each fiscal quarter during 2017 and 2016, the range of high and low closing prices of our common stock as reported on the NYSE.

       
       High Low 

      Fiscal year 2017

             

      Fourth quarter

       $41.55 $39.71 

      Third quarter

       $40.40 $38.13 

      Second quarter

       $40.39 $37.80 

      First quarter

       $38.27 $35.39 

      Fiscal year 2016

             

      Fourth quarter

       $37.36 $32.23 

      Third quarter

       $34.59 $32.61 

      Second quarter

       $32.90 $30.52 

      First quarter

       $31.46 $26.35 

             On February 22, 2018, the last sale price of our common stock on the NYSE was $35.70 per share, and there were approximately 312 holders of record of the common stock which did not include stockholders for whom shares are held in "nominee" or "street name."

             Shares of BDCs may trade at a market price that is less than the value of the net assets attributable to those shares. The possibility that our shares of common stock will trade at a discount from net asset value per share or at premiums that are unsustainable over the long term are separate and distinct from the risk that our net asset value per share will decrease. It is not possible to predict whether our common stock will trade at, above, or below net asset value per share. Since our IPO in October 2007, our shares of common stock have traded at prices both less than and exceeding our net asset value per share.

             We currently pay regular monthly dividends and semiannual supplemental dividends to our stockholders. Our monthly dividends, if any, will be determined by our Board of Directors on a quarterly basis. Our semiannual supplemental dividends, if any, will be determined by our Board of Directors based upon our undistributed taxable income. The following table summarizes our dividends declared to date:


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      Date Declared
       
      Record Date
       
      Payment Date
       
      Amount(1)
       

      Fiscal year 2018

              

      February 20, 2018

       May 21, 2018 June 15, 2018 $0.190 

      February 20, 2018

       April 20, 2018 May 15, 2018 $0.190 

      February 20, 2018

       March 21, 2018 April 16, 2018 $0.190 

      October 31, 2017

       February 22, 2018 March 15, 2018 $0.190 

      October 31, 2017

       January 19, 2018 February 15, 2018 $0.190 

      October 31, 2017

       December 29, 2017 January 12, 2018 $0.190(2)

           $1.140 

      Fiscal year 2017

              

      October 17, 2017

       December 19, 2017 December 27, 2017 $0.275(2)

      August 1, 2017

       November 21, 2017 December 15, 2017 $0.190(2)

      August 1, 2017

       October 20, 2017 November 15, 2017 $0.190(2)

      August 1, 2017

       September 21, 2017 October 16, 2017 $0.190(2)

      May 2, 2017

       August 21, 2017 September 15, 2017 $0.185(2)

      May 2, 2017

       July 20, 2017 August 15, 2017 $0.185(2)

      May 2, 2017

       June 30, 2017 July 14, 2017 $0.185(2)

      April 18, 2017

       June 19, 2017 June 26, 2017 $0.275(2)

      February 22, 2017

       May 19, 2017 June 14, 2017 $0.185(2)

      February 22, 2017

       April 20, 2017 May 15, 2017 $0.185(2)

      February 22, 2017

       March 21, 2017 April 13, 2017 $0.185(2)

      November 2, 2016

       February 22, 2017 March 15, 2017 $0.185(2)

      November 2, 2016

       January 20, 2017 February 15, 2017 $0.185(2)

      November 2, 2016

       December 30, 2016 January 13, 2017 $0.185(3)

           $2.785 

      Fiscal year 2016

              

      October 18, 2016

       December 16, 2016 December 23, 2016 $0.275(3)

      August 2, 2016

       November 21, 2016 December 13, 2016 $0.185(3)

      August 2, 2016

       October 20, 2016 November 15, 2016 $0.185(3)

      August 2, 2016

       September 21, 2016 October 14, 2016 $0.185(3)

      May 3, 2016

       August 19, 2016 September 15, 2016 $0.180(3)

      May 3, 2016

       July 21, 2016 August 15, 2016 $0.180(3)

      May 3, 2016

       July 1, 2016 July 15, 2016 $0.180(3)

      April 20, 2016

       June 20, 2016 June 27, 2016 $0.275(3)

      February 23, 2016

       May 20, 2016 June 15, 2016 $0.180(3)

      February 23, 2016

       April 21, 2016 May 16, 2016 $0.180(3)

      February 23, 2016

       March 21, 2016 April 15, 2016 $0.180(3)

      November 3, 2015

       February 22, 2016 March 15, 2016 $0.180(3)

      November 3, 2015

       January 22, 2016 February 17, 2016 $0.180(3)

      November 3, 2015

       December 30, 2015 January 15, 2016 $0.180(4)

           $2.725 

      Fiscal year 2015

              

      October 20, 2015

       December 17, 2015 December 24, 2015 $0.275(4)

      August 3, 2015

       November 20, 2015 December 14, 2015 $0.180(4)

      August 3, 2015

       October 21, 2015 November 16, 2015 $0.180(4)

      August 3, 2015

       September 21, 2015 October 15, 2015 $0.180(4)

      May 5, 2015

       August 20, 2015 September 15, 2015 $0.175(4)

      May 5, 2015

       July 21, 2015 August 14, 2015 $0.175(4)

      May 5, 2015

       July 1, 2015 July 15, 2015 $0.175(4)

      April 22, 2015

       June 18, 2015 June 25, 2015 $0.275(4)

      February 24, 2015

       May 20, 2015 June 15, 2015 $0.175(4)

      February 24, 2015

       April 21, 2015 May 15, 2015 $0.175(4)

      February 24, 2015

       March 20, 2015 April 15, 2015 $0.175(4)

      November 6, 2014

       February 20, 2015 March 16, 2015 $0.170(4)

      November 6, 2014

       January 21, 2015 February 13, 2015 $0.170(4)

      November 6, 2014

       December 31, 2014 January 15, 2015 $0.170(5)

      Total

           $2.650 

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      Date Declared
        
        
       
      Amount(1)
       

      Fiscal year 2014

              

      Total

           $2.545(5),(6)

      Fiscal year 2013

              

      Total

           $2.660(6),(7)

      Fiscal year 2012

              

      Total

           $1.710(7),(8)

      Fiscal year 2011

              

      Total

           $1.560(8)

      Fiscal year 2010

              

      Total

           $1.500(9)

      Fiscal year 2009

              

      Total

           $1.500(10),(11)

      Fiscal year 2008

              

      Total

           $1.425(11)

      Fiscal year 2007

              

      Total

           $0.330(12)

      Cumulative dividends declared or paid

           $22.530 

      (1)
      The determination of the tax attributes of our distributions is made annually, based upon our taxable income for the full year and distributions paid for the full year. Ordinary dividend distributions from a RIC do not qualify for the tax rate applicable to "qualified dividend income" from domestic corporations and qualified foreign corporations, except to the extent that the RIC received the income in the form of qualifying dividends from domestic corporations and qualified foreign corporations.

      (2)
      These dividends attributable to fiscal year 2017 were comprised of ordinary income of $2.218 per share, long term capital gain of $0.490 per share, and qualified dividend income of $0.082 per share, and included dividends with a record date during fiscal year 2017, including the dividend declared and accrued as of December 31, 2017 and paid on January 12, 2018, pursuant to the Code.

      (3)
      These dividends attributable to fiscal year 2016 were comprised of ordinary income of $1.911 per share, long term capital gain of $0.761 per share, and qualified dividend income of $0.058 per share, and included dividends with a record date during fiscal year 2016, including the dividend declared and accrued as of December 31, 2016 and paid on January 13, 2017, pursuant to the Code.

      (4)
      These dividends attributable to fiscal year 2015 were comprised of ordinary income of $2.325 per share, long term capital gain of $0.231 per share, and qualified dividend income of $0.105 per share, and included dividends with a record date during fiscal year 2015, including the dividend declared and accrued as of December 31, 2015 and paid on January 15, 2016, pursuant to the Code.

      (5)
      These dividends attributable to fiscal year 2014 were comprised of ordinary income of $2.083 per share, long term capital gain of $0.419 per share, and qualified dividend income of $0.048 per share, and included dividends with a record date during fiscal year 2014, including the dividend declared and accrued as of December 31, 2014 and paid on January 15, 2015, pursuant to the Code.

      (6)
      These dividends attributable to fiscal year 2013 were comprised of ordinary income of $1.872 per share, long term capital gain of $0.346 per share, and qualified dividend income of $0.457 per share, and included dividends with a record date during fiscal year 2013, including the dividend declared and accrued as of December 31, 2013 and paid on January 15, 2014, pursuant to the Code.

      (7)
      These dividends attributable to fiscal year 2012 were comprised of ordinary income of $0.923 per share, long term capital gain of $0.748 per share, and qualified dividend income of $0.054 per

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        share, and included dividends with a record date during fiscal year 2012, including the dividend declared and accrued as of December 31, 2012 and paid on January 15, 2013, pursuant to the Code.

      (8)
      These dividends attributable to fiscal year 2011 were comprised of ordinary income of $1.253 per share, long term capital gain of $0.373 per share, and qualified dividend income of $0.069 per share, and included dividends with a record date during fiscal year 2011, including the dividend declared and accrued as of December 31, 2011 and paid on January 16, 2012, pursuant to the Code.

      (9)
      These dividends attributable to fiscal year 2010 were comprised of ordinary income of $1.220 per share, long term capital gain of $0.268 per share, and qualified dividend income of $0.012 per share.

      (10)
      These dividends attributable to fiscal year 2009 were comprised of ordinary income of $1.218 per share and long term capital gain of $0.157 per share and excluded the $0.125 paid on January 15, 2009 which had been declared and accrued as of December 31, 2008.

      (11)
      These dividends attributable to fiscal year 2008 were comprised of ordinary income of $0.953 per share and long term capital gain of $0.597 per share, and included dividends with a record date during fiscal year 2008, including the $0.125 per share dividend declared and accrued as of December 31, 2008 and paid on January 15, 2009, pursuant to the Code.

      (12)
      This quarterly dividend attributable to fiscal year 2007 was comprised of ordinary income of $0.105 per share and long term capital gain of $0.225 per share.

             In accordance with the IRC sections 871(k) and 881(e), the following percentages represent the portion of our dividends that constitute interest-related dividends and short-term capital gains dividends for non-U.S. residents and foreign corporations.

             Including the long-term capital gains discussed above, the following percentages represent the total dividends which are exempt from U.S. withholding tax.

      Payment Dates
       Interest-Related Dividends
      and Short-Term
      Capital Gain Dividend
       Distributions Exempt
      from U.S.
      Withholding Tax(1)
       

      2/15/2017

        59.15% 78.09%

      From 3/15/2017 to 6/14/2017

        78.09% 78.09%

      6/26/2017

        70.00% 70.00%

      From 7/14/2017 to 8/15/2017

        0.00% 100.00%

      9/15/2017

        12.23% 58.01%

      From 10/16/2017 to 1/12/2018

        70.00% 70.00%

             To the extent non-U.S. resident taxes were withheld on ordinary dividends distributed, this information may be considered in connection with any claims for refund of such taxes to be filed by the non-U.S. resident stockholder with the Internal Revenue Service.

             To obtain and maintain RIC tax treatment and to minimize corporate-level U.S. federal taxes, we must, among other things,will be required to distribute at least 90%substantially all of our net ordinary taxable income and realized net short-term capital gainsgain income, including taxable income from certain of our subsidiaries, which includes the income from the Funds. We will be partially dependent on the Funds for cash distributions to enable us to meet the RIC distribution requirements. The Funds may be limited by SBIC regulations from making certain distributions to us that may be necessary to enable us to maintain our status as a RIC. We may have to request a waiver of the SBA’s restrictions for the Funds to make certain distributions to maintain our eligibility for RIC status. We cannot assure you that the SBA will grant such waiver and if the Funds are unable to obtain a waiver, compliance with the SBIC regulations may result in excessloss of realized net long-term capital losses, if any. RIC tax treatment and a consequent imposition of an entity-level tax on us.

      FEDERAL INCOME TAX RISKS

      We will be subject to a 4% non-deductiblecorporate-level U.S. federal exciseincome tax if we are unable to qualify as a RIC under Subchapter M of the Code.

      To maintain RIC tax treatment under the Code, we must meet the following annual distribution, income source and asset diversification requirements:

      The Annual Distribution Requirement for a RIC will be satisfied if we distribute to our stockholders on an annual basis at least 90% of our net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses, if any. Depending on the level of taxable income earned in a tax year, we may choose to carry forward taxable income in excess of current year distributions into the next tax year and pay a 4% U.S. federal excise tax on such income. Any such carryover taxable income must be distributed through a dividend declared prior to filing the final tax return related to the year which generated such taxable income. For more information regarding tax treatment, see “Business — Regulation — Taxation as a Regulated Investment Company.” Because we use debt financing, we are subject to certain asset coverage ratio requirements under the 1940 Act and are (and may in the future become) subject to certain financial covenants under loan and credit agreements that could, under certain circumstances, restrict us from making distributions necessary to satisfy the distribution requirement. In

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      addition, because we receive non-cash sources of income such as PIK interest which involves us recognizing taxable income without receiving the cash representing such income, we may have difficulty meeting the distribution requirement. If we are unable to obtain cash from other sources, we could fail to qualify for RIC tax treatment and thus become subject to corporate-level U.S. federal income tax.
      The source-of-income requirement will be satisfied if we obtain at least 90% of our gross income for each year from distributions, interest, gains from the sale of stock or securities or similar sources.
      The asset diversification requirement will be satisfied if we meet certain asset diversification requirements at the end of each quarter of our taxable year. To satisfy this requirement, at least 50% of the value of our assets must consist of cash, cash equivalents, U.S. government securities, securities of other RICs, and other acceptable securities; and no more than 25% of the value of our assets can be invested in the securities, other than U.S. government securities or securities of other RICs, (i) of one issuer, (ii) of two or more issuers that are controlled, as determined under applicable Code rules, by us and that are engaged in the same or similar or related trades or businesses or (iii) of certain “qualified publicly traded partnerships.”

      Failure to meet these requirements may result in our having to dispose of certain investments quickly in order to prevent the loss of RIC status. Because most of our investments are in privately held companies, and therefore illiquid, any such dispositions could be made at disadvantageous prices and could result in substantial losses. Moreover, if we fail to maintain RIC tax treatment for any reason and are subject to corporate income tax, the resulting corporate taxes could substantially reduce our net assets, the amount of income available for distribution and the amount of our distributions.

      We may have difficulty paying the distributions required to maintain RIC tax treatment under the Code if we recognize income before or without receiving cash representing such income.

      We will include in income certain amounts that we have not yet received in cash, such as: (i) amortization of original issue discount, which may arise if we receive warrants in connection with the origination of a loan such that ascribing a value to the warrants creates original issue discount in the debt instrument, if we invest in a debt investment at a discount to the par value of the debt security or possibly in other circumstances; (ii) contractual payment-in-kind, or PIK, interest, which represents contractual interest added to the loan balance and due at the end of the loan term; (iii) contractual preferred dividends, which represents contractual dividends added to the preferred stock and due at the end of the preferred stock term, subject to adequate profitability at the portfolio company; or (iv) amortization of market discount, which is associated with loans purchased in the secondary market at a discount to par value. Such amortization of original issue discounts, increases in loan balances as a result of contractual PIK arrangements, cumulative preferred dividends, or amortization of market discount will be included in income before we receive the corresponding cash payments. We also may be required to include in income certain other amounts before we receive such amounts in cash. Investments structured with these features may represent a higher level of credit risk compared to investments generating income which must be paid in cash on a current basis.

      Since, in certain undistributedcases, we may recognize taxable income unlessbefore or without receiving cash representing such income, we distribute in a timely manner an amount at least equalmay have difficulty meeting the Annual Distribution Requirement necessary to maintain RIC tax treatment under the sum of (1) 98%Code. Accordingly, we may have to sell some of our net ordinary taxable incomeinvestments at times and/or at prices we would not consider advantageous, raise additional debt or equity capital or forgo new investment opportunities for each calendar year, (2) 98.2% of our capital gain net incomethis purpose. If we are not able to obtain cash from other sources, we may fail to qualify for the one-year period ending December 31 in that calendar yearRIC tax treatment and (3) any taxable income recognized, but not distributed, in preceding years on which we paid nothus become subject to corporate-level U.S. federal income tax. Dividends declared and paid by us inFor additional discussion regarding the tax implications of a year will generally differ from taxable income for that year,RIC, please see “Business — Regulation — Taxation as such dividendsa Regulated Investment Company.”

      We may include the distribution of current year taxable income, less amounts carried over into the following year, and the distribution of prior year taxable income carried over into and distributed in the current year. For amounts we carry over into the following year, we willfuture choose to pay dividends in our own stock, in which case you may be required to pay a 4% U.S. federal excise tax on the amount by which 98% of our annual ordinary taxable income and 98.2% of capital gains exceeds our distributions for


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      the year. We may retain for investment some or all of our net capital gains (i.e., realized net long-term capital gains in excess of realized net short-term capital losses) and treat such amounts as deemed distributions to our stockholders. If we do this, our stockholders will be treated as if they had received actual distributions of the capital gains we retained and then reinvested the net after-tax proceeds in our common stock. In general, our stockholders also would be eligible to claim a tax credit (or, in certain circumstances, a tax refund) equal to their allocable shares of the tax we paid on the capital gains deemed distributed to them. We can offer no assurance that we will achieve results that will permit the payment of any cash distributions and, if we issue senior securities, we may be prohibited from making distributions if doing so causes us to fail to maintain the asset coverage ratios stipulated by the 1940 Act or if distributions are limited by the terms of any of our borrowings.you receive.

      We may distribute taxable dividends that are payable in part in our stock. Under certain applicable provisions of the Code and the Treasury regulations, distributions payable by us in cash or in shares of stock (at the stockholdersstockholders’ election) would satisfy the Annual Distribution Requirement. The Internal Revenue Service has issued private letter rulingsguidance providing that a dividend payable in stock or in cash at the election of the stockholders will be treated as a taxable

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      dividend eligible for the dividends paid deduction provided that at least 20% of the total dividend is payable in cash and certain other requirements are satisfied. Taxable stockholders receiving such dividends will be required to include the full amount of the dividend as ordinary income (or as long-term capital gain to the extent such dividend is properly reported as a capital gain dividend), to the extent of our current and accumulated earnings and profits for U.S. federal income tax purposes. As a result, a U.S. stockholder may be required to pay tax with respect to such dividends in excess of any cash received. If a U.S. stockholder sells the stock it receives as a dividend in order to pay this tax, the sales proceeds may be less than the amount included in income with respect to the dividend, depending on the market price of our stock at the time of the sale. Furthermore, with respect to non-U.S. stockholders, we may be required to withhold U.S. tax with respect to such dividends, including in respect of all or a portion of such dividend that is payable in stock. In addition, if a significant number of our stockholders determine to sell shares of our stock in order to pay taxes owed on dividends, it may put downward pressure on the trading price of our stock.

      Stockholders may have current tax liability on dividends they elect to reinvest in our common stock but would not receive cash from such dividends to pay such tax liability.

      If stockholders participate in our dividend reinvestment plan, they will be deemed to have received, and for federal income tax purposes will be taxed on, the amount reinvested in our common stock to the extent the amount reinvested was not a tax-free return of capital. As a result, unless a stockholder is a tax-exempt entity, it may have to use funds from other sources to pay its tax liability on the value of the dividend that they have elected to have reinvested in our common stock.

      Legislative or regulatory tax changes could adversely affect our stockholders.

      At any time, the federal income tax laws governing RICs or the administrative interpretations of those laws or regulations may be amended. The Biden Administration has announced a number of tax law proposals, including American Families Plan and Made in America Tax Plan, which include increases in the corporate and individual tax rates, and impose a minimum tax on book income and profits of certain multinational corporations. Any of those new laws, regulations or interpretations may take effect retroactively and could adversely affect the taxation of us or our stockholders. Therefore, changes in tax laws, regulations or administrative interpretations or any amendments thereto could diminish the value of an investment in our shares or the value or the resale potential of our investments. If we do not comply with applicable laws and regulations, we could lose any licenses that we then hold for the conduct of our business and may be subject to civil fines and criminal penalties.

      GENERAL RISK FACTORS

      Events outside of our control, including public health crises, supply-chain disruptions and inflation, could negatively affect our portfolio companies and our results of operations.

      Periods of market volatility have occurred and could continue to occur in response to pandemics or other events outside of our control. These types of events have adversely affected, and could continue to adversely affect, operating results for us and for our portfolio companies. The COVID-19 pandemic had a significant adverse effect on the U.S. economy, particularly in the second quarter of 2020. Although certain economic conditions in the United States improved in 2021, the pandemic continues to evolve, as recently experienced with the rapid spread of the Omicron variant, and risks remain with respect to local, regional, national and global markets and economies affected thereby, including the United States. With respect to U.S. and global credit markets and the economy in general, the pandemic has resulted in, and until fully resolved is likely to continue to result in, the following (among other things): (i) restrictions on travel and the temporary closure of many corporate offices, retail stores and manufacturing facilities and factories, resulting in significant disruption to the business of many companies, including supply chains and demand, as well as layoffs of employees; (ii) increased draws by borrowers on revolving lines of credit; (iii) increased requests by borrowers for amendments or waivers of their credit agreements to avoid default, increased defaults by borrowers and/or increased difficulty in obtaining refinancing; (iv) volatility in credit markets, including greater volatility in pricing and spreads; and (v) evolving proposals and actions by state and federal governments to address the problems being experienced by markets, businesses and the economy in general, which may not adequately address the problems being

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      faced. The COVID-19 pandemic is continuing as of the filing date of this Annual Report, and its extended duration may have further adverse impacts on our portfolio companies after December 31, 2021, as well as the economy in general.

      This pandemic has also caused, and may continue to cause, disruption to our portfolio companies’ global supply chain and business operations. In particular, shortages in commodities and materials, including shortages and reductions in allocations of electronic and other components from key suppliers, labor shortages and elevated levels of employee absenteeism, freight delays and other supply chain constraints and disruptions have significantly delayed or disrupted, and may continue to adversely impact, both our portfolio companies’ suppliers’ and third-party vendors and our portfolio companies’ ability to manufacture and deliver products and/or services to their end-users and customers. Our portfolio companies have also experienced a significant increase in commodity, parts and material component inflation in 2021 and 2022, as well as inflation in other costs, such as labor, packaging, freight and energy prices. Continued supply chain disruptions and delays, as well as continued heightened inflation, could lead to continued periodic production interruptions and other inefficiencies that could negatively impact our portfolio companies’ productivity, margin performance and results of operations, which could result in a material adverse effect on our financial condition, results of operations and cash flows.

      Although it is impossible to predict the precise nature and consequences of these events, or of any political or policy decisions and regulatory changes occasioned by emerging events or uncertainty on applicable laws or regulations that impact us and our portfolio companies and investments, it is clear that these types of events are impacting and will, for at least some time, continue to impact us and our portfolio companies; in many instances the impact will be adverse and material. Any potential impact to our results of operations will depend to a large extent on future developments and the ultimate duration and severity of the COVID-19 pandemic and the actions taken by authorities and other entities to contain the spread or treat its impact, all of which are beyond our control. These potential impacts, while uncertain, could adversely affect our and our portfolio companies' operating results and financial condition.

      The COVID-19 pandemic and the related disruption and financial distress experienced by our portfolio companies may have material adverse effects on our financial results, including investment income received from our investments and the underlying value of those investments. The COVID-19 pandemic has adversely impacted the fair value of certain of our investments, including those reported as of December 31, 2021, and the values reported may differ materially from the values that we may ultimately realize with respect to our investments. We may need to restructure our investments in certain portfolio companies as a result of the adverse effects of the COVID-19 pandemic, which could reduce the amount or extend the time for payment of principal or the life of our investment or reduce the amount or extend the time of payment of interest or dividends, among other things. Depending on the duration of the COVID-19 pandemic and the extent of its continuing effects on our portfolio companies' operations and our operating results, any future dividends to our stockholders may be for amounts less than our historical dividends, may be paid less frequently than historical practices and may also include return of capital.

      The 1940 Act generally prohibits us, as a BDC, from incurring indebtedness unless immediately after such borrowing we have an asset coverage, as defined in the 1940 Act, of at least 200% (or 150% if certain requirements are met). In addition, the terms of our senior securities may contain similar limitations or covenants requiring our compliance with the 1940 Act asset coverage requirements, and other affirmative and negative covenants. A continued significant decrease in the value of our Investment Portfolio, due to the effects of the COVID-19 pandemic or otherwise, resulting in significant reductions of our net asset value increases the risk of us not meeting the required asset coverage requirement under the 1940 Act or breaching covenants under our senior securities. Any such result could have a material adverse effect on our business, liquidity, financial condition, results of operations and ability to pay dividends to our stockholders and attributes thereof.

      We are currently operating in a period of capital markets disruption and economic uncertainty, and capital markets may experience periods of disruption and instability in the future. These market conditions may materially and adversely affect debt and equity capital markets in the United States and abroad, which may have a negative impact on our business and operations.

      U.S. capital markets have experienced extreme volatility and disruption following the global outbreak of COVID-19 that began in December 2019, as evidenced by the volatility in global stock markets as a result of, among

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      other things, uncertainty surrounding the COVID-19 pandemic and the impact of supply chain disruptions. Despite actions of the U.S. federal government and foreign governments, these events have contributed to unpredictable general economic conditions that are materially and adversely impacting the broader financial and credit markets. These and future market disruptions and/or illiquidity would be expected to have an adverse effect on our business, financial condition, results of operations and cash flows, as well as the businesses of our portfolio companies, and the broader financial and credit markets.

      At various times, such disruptions have resulted in, and may in the future result in, a lack of liquidity in parts of the debt capital markets, significant write-offs in the financial services sector and the repricing of credit risk. Such conditions may occur for a prolonged period of time again, and may materially worsen in the future, including as a result of U.S. government shutdowns, or future downgrades to the U.S. government's sovereign credit rating or the perceived credit worthiness of the U.S. or other large global economies. In addition, the current U.S. political environment and the resulting uncertainties regarding actual and potential shifts in U.S. foreign investment, trade, taxation, economic, environmental and other policies under the current Administration, as well as the impact of geopolitical tension, such as a deterioration in the bilateral relationship between the U.S. and China or an escalation in conflict between Russia and Ukraine, could lead to disruption, instability and volatility in the global markets. Unfavorable economic conditions also would be expected to increase our funding costs, limit our access to the capital markets or result in a decision by lenders not to extend credit to us. These events have limited and could continue to limit our investment originations, and limit our ability to grow and could have a material negative impact on our operating results, financial condition, results of operations and cash flows and the fair values of our debt and equity investments.

      In addition, the U.S. and global capital markets have in the past, and may in the future, experience periods of extreme volatility and disruption during economic downturns and recessions. Trade wars and volatility in the U.S. repo market, the U.S. high yield bond markets, the Chinese stock markets and global markets for commodities may affect other financial markets worldwide. In addition, while recent government stimulus measures worldwide have reduced volatility in the financial markets, volatility may return as such measures are phased out, and the long-term impacts of such stimulus on fiscal policy and inflation remain unknown. Increases to budget deficits, which have been exacerbated by the COVID-19 pandemic, or direct and contingent sovereign debt may create concerns about the ability of certain nations to service their sovereign debt obligations and any risks resulting from any such debt crisis in Europe, the U.S. or elsewhere could have a detrimental impact on the global economy, sovereign and non-sovereign debt in certain countries and the financial condition of financial institutions generally. Austerity measures that certain countries may agree to as part of any debt crisis or disruptions to major financial trading markets may adversely affect world economic conditions, our business and the businesses of our portfolio companies.

      Additionally, the Federal Reserve is expected to raise the Federal Funds Rate in 2022. These developments, along with the United States government’s credit and deficit concerns, global economic uncertainties and market volatility and the impacts of COVID-19, could cause interest rates to be volatile, which may negatively impact our ability to access the capital markets on favorable terms.

      Deterioration in the economy and financial markets could impair our portfolio companies’ financial positions and operating results and affect the industries in which we invest, which could, in turn, harm our operating results.

      The broader fundamentals of the United States economy remain mixed. In the event that the United States economy contracts, it is likely that the financial results of small to mid-sized companies, like those in which we invest, could experience deterioration or limited growth from current levels, which could ultimately lead to difficulty in meeting their debt service requirements and an increase in defaults. In addition, a decline in oil and natural gas prices would adversely affect the credit quality of our debt investments and the underlying operating performance of our equity investments in energy-related businesses. Consequently, we can provide no assurance that the performance of certain portfolio companies will not be negatively impacted by economic cycles, industry cycles or other conditions, which could also have a negative impact on our future results.

      Although we have been able to secure access to additional liquidity, the potential for volatility in the debt and equity capital markets provides no assurance that debt or equity capital will be available to us in the future on favorable terms, or at all.

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      We may experience fluctuations in our operating results.

      We could experience fluctuations in our operating results due to a number of factors, including our ability or inability to make investments in companies that meet our investment criteria, the interest rate payable on the debt securities we acquire, the level of portfolio dividend and fee income, the level of our expenses, variations in and the timing of the recognition of realized and unrealized gains or losses, the degree to which we encounter competition in our markets and general economic conditions. As a result of these factors, operating results for any period should not be relied upon as being indicative of performance in future periods.

      Terrorist attacks, acts of war, public health crises or natural disasters may affect any market for our securities, impact the businesses in which we invest and harm our business, operating results and financial condition.

      Terrorist acts, acts of war, public health crises (including the recent coronavirus outbreak) or natural disasters may disrupt our operations, as well as the operations of the businesses in which we invest. Such acts have created, and continue to create, economic and political uncertainties and have contributed to global economic instability. Future terrorist activities, military or security operations, public health crises, or natural disasters could further weaken the domestic/global economies and create additional uncertainties, which may negatively impact the businesses in which we invest directly or indirectly and, in turn, could have a material adverse impact on our business, operating results and financial condition. Losses from terrorist attacks, public health crises and natural disasters are generally uninsurable.

      Technological innovations and industry disruptions may negatively impact us.

      Technological innovations have disrupted traditional approaches in multiple industries and can permit younger companies to achieve success and in the process disrupt markets and market practices. We can provide no assurance that new businesses and approaches will not be created that would compete with us and/or our portfolio companies or alter the market practices in which we have been designed to function within and on which we depend on for our investment return. New approaches could damage our investments, disrupt the market in which we operate and subject us to increased competition, which could materially and adversely affect our business, financial condition and results of investments.

      We are highly dependent on information systems and systems failures could significantly disrupt our business, which may, in turn, negatively affect the market price of our common stock and our ability to pay dividends.

      Our business is highly dependent on our and third parties’ communications and information systems. Any failure or interruption of those systems, including as a result of the termination of an agreement with any third-party service providers, could cause delays or other problems in our activities. Our financial, accounting, data processing, backup or other operating systems and facilities may fail to operate properly or become disabled or damaged as a result of a number of factors including events that are wholly or partially beyond our control and adversely affect our business. There could be:

      sudden electrical or telecommunications outages;
      natural disasters such as earthquakes, tornadoes and hurricanes;
      disease pandemics;
      events arising from local or larger scale political or social matters, including terrorist acts; and
      cyber attacks, including software viruses, ransomware, malware and phishing and vishing schemes.

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      The failure in cyber security systems, as well as the occurrence of events unanticipated in our disaster recovery systems and management continuity planning could impair our ability to conduct business effectively.

      The occurrence of a disaster such as a cyber-attack, a natural catastrophe, an industrial accident, a terrorist attack or war, events unanticipated in our disaster recovery systems, or a support failure from external providers, could have an adverse effect on our ability to conduct business and on our results of operations and financial condition, particularly if those events affect our computer-based data processing, transmission, storage, and retrieval systems or destroy data. If a significant number of our managers were unavailable in the event of a disaster, our ability to effectively conduct our business could be severely compromised.

      We depend heavily upon computer systems to perform necessary business functions. Despite our implementation of a variety of security measures, our computer systems could be subject to cyber-attacks and unauthorized access, such as physical and electronic break-ins or unauthorized tampering. Like other companies, we may experience threats to our data and systems, including malware and computer virus attacks, unauthorized access, system failures and disruptions. If one or more of these events occurs, it could potentially jeopardize the confidential, proprietary and other information processed and stored in, and transmitted through, our computer systems and networks, or otherwise cause interruptions or malfunctions in our operations, which could result in damage to our reputation, financial losses, litigation, increased costs, regulatory penalties and/or customer dissatisfaction or loss.

      Third parties with which we do business (including, but not limited to, service providers, such as accountants, custodians, transfer agents and administrators, and the issuers of securities in which we invest) may also be sources or targets of cyber security or other technological risks. While we engage in actions to reduce our exposure resulting from outsourcing, we cannot control the cyber security plans and systems put in place by these third parties and ongoing threats may result in unauthorized access, loss, exposure or destruction of data, or other cybersecurity incidents, with increased costs and other consequences, including those described above. Privacy and information security laws and regulation changes, and compliance with those changes, may also result in cost increases due to system changes and the development of new administrative processes.

      Item 1B. Unresolved Staff Comments

      None.

      Item 2. Properties

      We do not own any real estate or other physical properties materially important to our operations. Currently, we lease office space in Houston, Texas for our corporate headquarters.

      Item 3. Legal Proceedings

      We may, from time to time, be involved in litigation arising out of our operations in the normal course of business or otherwise. Furthermore, third parties may seek to impose liability on us in connection with the activities of our portfolio companies. While the outcome of any current legal proceedings cannot at this time be predicted with certainty, we do not expect any current matters will materially affect our financial condition or results of operations; however, there can be no assurance whether any pending legal proceedings will have a material adverse effect on our financial condition or results of operations in any future reporting period.

      Item 4. Mine Safety Disclosures

      Not applicable.

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      PART II

      Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

      COMMON STOCK AND HOLDERS

      Our common stock is traded on the NYSE under the symbol “MAIN.”

      The following table sets forth, for the periods indicated, the range of high and low closing prices of our common stock as reported on the NYSE, and the sales price as a percentage of the net asset value per share of our common stock.

      Premium 

       

      Premium of

      (Discount) of

      High Sales

      Low Sales

       

      Price Range

      Price to

      Price to

       

          

      NAV(1)

          

      High

          

      Low

          

      NAV(2)

          

      NAV(2)

       

      Year ending December 31, 2022

        

        

        

        

        

      First Quarter (through February 24, 2022)

      *

      $

      41.08

      $

      44.88

      *

       

      *

      Year ended December 31, 2021

        

       

        

       

        

        

       

        

      Fourth Quarter

      $

      25.29

      $

      46.61

      $

      41.35

      84

      %  

      64

      %

      Third Quarter

       

      24.27

       

      42.81

       

      40.20

      76

      %  

      66

      %

      Second Quarter

       

      23.42

       

      43.41

       

      38.14

      85

      %  

      63

      %

      First Quarter

       

      22.65

       

      39.56

       

      31.35

      75

      %  

      38

      %

      Year ended December 31, 2020

       

        

       

        

       

        

        

       

        

      Fourth Quarter

      $

      22.35

      $

      32.59

      $

      27.39

      46

      %  

      23

      %

      Third Quarter

       

      21.52

       

      33.01

       

      28.66

      53

      %  

      33

      %

      Second Quarter

       

      20.85

       

      35.82

       

      17.34

      72

      %  

      (17)

      %

      First Quarter

       

      20.73

       

      45.00

       

      15.74

      117

      %  

      (24)

      %


      *Net asset value has not yet been determined for the first quarter of 2022.

      (1)Net asset value per share, or NAV, is determined as of the last day in the relevant quarter and therefore may not reflect the net asset value per share on the date of the high and low closing prices. The net asset values shown are based on outstanding shares at the end of each period.
      (2)Calculated for each quarter as (i) NAV subtracted from the respective high or low share price divided by (ii) NAV.

      On February 24, 2022, the last sale price of our common stock on the NYSE was $41.67 per share, and there were approximately 434 holders of record of the common stock which did not include stockholders for whom shares are held in “nominee” or “street name.” The net asset value per share of our common stock on December 31, 2021 was $25.29, and the premium of the February 24, 2022 closing price of our common stock was 77% to this net asset value per share.

      Shares of BDCs may trade at a market price that is less than the value of the net assets attributable to those shares. The possibility that our shares of common stock will trade at a discount from net asset value per share or at premiums that are unsustainable over the long term are separate and distinct from the risk that our net asset value per share will decrease. It is not possible to predict whether our common stock will trade at, above, or below net asset value per share. Since our IPO in October 2007, our shares of common stock have traded at prices both less than and exceeding our net asset value per share.

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      DIVIDEND/DISTRIBUTION POLICY

      We currently intend to distribute dividends or make distributions to our stockholders out of assets legally available for distribution. Our dividends and other distributions, if any, will be determined by our Board of Directors from time to time. Our ability to declare dividends depends on our earnings, our overall financial condition (including our liquidity position), maintenance of our RIC status and such other factors as our Board of Directors may deem relevant from time to time. When we make distributions, we are required to determine the extent to which such distributions are paid out of current or accumulated earnings, recognized capital gains or capital. To the extent there is a return of capital (a distribution of the stockholders' invested capital), investors will be required to reduce their basis in our stock for federal tax purposes. In the future, our distributions may include a return of capital.

      We have adopted a dividend reinvestment and direct stock purchase plan ("DRIP"(the “Plan”) that. The dividend reinvestment feature of the Plan (the “DRIP”) provides for the reinvestment of dividends on behalf of our stockholders, unless a stockholder has elected to receive dividends in cash. As a result, if we declare a cash dividend, our stockholders who have not "opted out"“opted out” of the DRIP by the dividend record date will have their cash dividend automatically reinvested into additional shares of MSCC common stock. The share requirements of the DRIP may be satisfied through the issuance of new shares of common stock or through open market purchases of common stock by the DRIP plan administrator. Newly issued shares will be valued based upon the final closing price of MSCC'sMSCC’s common stock on a valuation date determined for each dividend by our Board of Directors. Shares purchased in the open market to satisfy the DRIP requirements will be valued based upon the average price of the applicable shares purchased by the DRIP plan administrator, before any associated brokerage or other costs. Our DRIP is administered by our transfer agent on behalf of our record holders and participating brokerage firms. Brokerage firms and other financial intermediaries may decide not to participate in our DRIP but may provide a similar dividend reinvestment plan for their clients.

      SALES OF UNREGISTERED SECURITIES

      During the year ended December 31, 2017,2021, we issued a total of 234,513404,384 shares of our common stock under the DRIP. These issuances were not subject to the registration requirements of the Securities Act of 1933, as amended. The aggregate value of the shares of our common stock issued under the DRIP during 20172021 was approximately $9.2$16.3 million.

      PURCHASES OF EQUITY SECURITIES

             None.


      Upon vesting of restricted stock awarded pursuant to our employee equity compensation plan, shares may be withheld to meet applicable tax withholding requirements. Any withheld shares are treated as common stock purchases by the Company in our consolidated financial statements as they reduce the number of shares received by employees upon vesting (see “Purchase of vested stock for employee payroll tax withholding” in the consolidated statements of changes in net assets for share amounts withheld).

      Table of Contents

      STOCK PERFORMANCE GRAPH

      The following graph compares the stockholder return on our common stock from October 5, 2007 to December 31, 20172021 with the S&P 500 Index, the Russell 2000 Index, the KBW Regional Bank Index and the Main Street Peer Group (as defined below). This comparison assumes $100.00 was invested on October 5, 2007 (the date our common stock began to trade in connection with our initial public offering) in our common stock and in the comparison groups and assumes the reinvestment of all cash dividends prior to any tax effect. The comparisons in the graph below are based on historical data and are not intended to forecast the possible future performance of our common stock.

      53


      Table of Contents

      COMPARISON OF STOCKHOLDER RETURN(1)

      Among Main Street Capital Corporation, the S&P 500 Index, the Russell 2000 Index, the KBW

      Regional Bank Index, and the Main Street Peer Group(2)

      (For the Period October 5, 2007 to December 31, 2017)
      2021)

      TOTAL RETURN PERFORMANCE SINCE IPO

      Chart, line chart

Description automatically generated


      (1)
      Total return includes reinvestment of dividends through December 31, 2017.

      (2)
      The Main Street Peer Group is composed of Apollo Investment Corporation, Ares Capital Corporation, BlackRock Capital Investment Corporation, Capitala Finance Corp., Fidus Investment Corporation, FS Investment Corporation, Goldman Sachs BDC, Inc., Golub Capital BDC, Inc., Hercules Capital, Inc., Medallion Financial Corp., Medley Capital Corporation, New Mountain Finance Corporation, Oaktree Specialty Lending Corporation, Oaktree Strategic Income Corporation, PennantPark Floating Rate Capital Ltd., PennantPark Investment Corporation, Prospect Capital Corporation, Solar Capital Ltd., Solar Senior Capital Ltd., TCP Capital Corp., THL Credit, Inc., TICC Capital Corp., TPG Specialty Lending, Inc. and Triangle Capital Corporation.
      (1)Total return includes reinvestment of dividends through December 31, 2021.
      (2)The Main Street Peer Group is composed of Apollo Investment Corp., Ares Capital Corporation, Barings BDC, Inc., Blackrock Capital Investment Corp., Crescent Capital BDC Inc, TCG BDC, Inc, Capital Southwest Corporation, Fidus Investment Corporation, FS KKR Capital Corp., Gladstone Investment Corporation, Golub Capital BDC, Inc., Goldman Sachs BDC, Inc., Hercules Capital Inc., Monroe Capital Corporation, Newtek Business Services Corp., New Mountain Finance Corporation, Oaktree Specialty Lending Corp., OFS Capital Corporation, PennantPark Floating Rate Capital Ltd., PennantPark Investment Corp., Prospect Capital Corporation, Saratoga Investment Corp., Stellus Capital Investment Corp., Solar Capital Ltd., Solar Senior Capital Ltd, BlackRock TCP Capital Corp., Triplepoint Venture Growth BDC Corp., Sixth Street Specialty Lending, Inc., and WhiteHorse Finance, Inc.

      54


      Table of Contents

      Item 6. Selected Financial Data
      [Reserved.]

             The selected financial and other data as

      55


      Table of and for the years ended December 31, 2017, 2016, 2015, 2014 and 2013 have been derived from consolidated financial statements that have been audited by Grant Thornton LLP, an independent registered public accounting firm. You should read this selected financial and other data in conjunction with our "Management'sContents

      Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations" and the consolidated financial statements and related notes included in this Annual Report on Form 10-K.

       
       Twelve Months Ended December 31, 
       
       2017 2016 2015 2014 2013 
       
       (dollars in thousands, except per share amounts)
       

      Statement of operations data:

                      

      Investment income:

                      

      Total interest, fee and dividend income

       $205,741 $178,165 $163,603 $139,939 $115,158 

      Interest from idle funds and other

          174  986  824  1,339 

      Total investment income

        205,741  178,339  164,589  140,763  116,497 

      Expenses:

                      

      Interest

        (36,479) (33,630) (32,115) (23,589) (20,238)

      Compensation

        (18,560) (16,408) (14,852) (12,337) (8,560)

      General and administrative

        (11,674) (9,284) (8,621) (7,134) (4,877)

      Share-based compensation

        (10,027) (8,304) (6,262) (4,215) (4,210)

      Expenses allocated to the External Investment Manager

        6,370  5,089  4,335  2,048   

      Expenses reimbursed to MSCP(1)

                (3,189)

      Total expenses

        (70,370) (62,537) (57,515) (45,227) (41,074)

      Net investment income

        135,371  115,802  107,074  95,536  75,423 

      Total net realized gain (loss) from investments

        16,182  29,389  (21,316) 23,206  7,277 

      Total net realized loss from SBIC debentures

        (5,217)       (4,775)

      Total net change in unrealized appreciation (depreciation) from investments                           

        42,545  (6,576) 10,871  (776) 14,503 

      Total net change in unrealized appreciation (depreciation) from SBIC debentures and investment in MSCP(1)                            

        6,212  (943) (879) (10,931) 4,392 

      Income tax benefit (provision)

        (24,471) 1,227  8,687  (6,287) 35 

      Net increase in net assets resulting from operations attributable to common stock

       $170,622 $138,899 $104,437 $100,748 $96,855 

      Net investment income per share — basic and diluted

       $2.39 $2.23 $2.18 $2.20 $2.06 

      Net increase in net assets resulting from operations attributable to common stock per share — basic and diluted

       $3.01 $2.67 $2.13 $2.31 $2.65 

      Weighted-average shares outstanding — basic and diluted

        56,691,913  52,025,002  49,071,492  43,522,397  36,617,850 

      (1)
      Main Street Capital Partners, LLC

      Operations

      Table of Contents


       
       As of December 31, 
       
       2017 2016 2015 2014 2013 
       
        
       (dollars in thousands)
       

      Balance sheet data:

                      

      Assets:

                      

      Total portfolio investments at fair value

       $2,171,305 $1,996,906 $1,799,996 $1,563,330 $1,286,188 

      Marketable securities and idle funds investments

            3,693  9,067  13,301 

      Cash and cash equivalents

        51,528  24,480  20,331  60,432  34,701 

      Interest receivable and other assets

        38,725  37,123  37,638  46,406  16,054 

      Deferred financing costs, net of accumulated amortization            

        3,837  12,645  13,267  14,550  9,931 

      Deferred tax asset, net

          9,125  4,003     

      Total assets

       $2,265,395 $2,080,279 $1,878,928 $1,693,785 $1,360,175 

      Liabilities and net assets:

                      

      Credit facility

       $64,000 $343,000 $291,000 $218,000 $237,000 

      SBIC debentures at fair value(1)

        288,483  239,603  223,660  222,781  187,050 

      4.50% Notes due 2022

        182,015         

      4.50% Notes due 2019

        173,616  175,000  175,000  175,000   

      6.125% Notes

        89,057  90,655  90,738  90,823  90,882 

      Accounts payable and other liabilities

        20,168  14,205  12,292  10,701  10,549 

      Payable for securities purchased

        40,716  2,184  2,311  14,773  27,088 

      Interest payable

        5,273  4,103  3,959  4,848  2,556 

      Dividend payable

        11,146  10,048  9,074  7,663  6,577 

      Deferred tax liability, net

        10,553      9,214  5,940 

      Total liabilities

        885,027  878,798  808,034  753,803  567,642 

      Total net asset value

        1,380,368  1,201,481  1,070,894  939,982  792,533 

      Total liabilities and net assets                 

       $2,265,395 $2,080,279 $1,878,928 $1,693,785 $1,360,175 

      Other data:

                      

      Weighted-average effective yield on LMM debt investments(2),(3)

        12.0%  12.5%  12.2%  13.2%  14.7% 

      Number of LMM portfolio companies

        70  73  71  66  62 

      Weighted-average effective yield on Middle Market debt investments(2),(3)

        9.0%  8.5%  8.0%  7.8%  7.8% 

      Number of Middle Market portfolio companies

        62  78  86  86  92 

      Weighted-average effective yield on Private Loan debt investments(2),(3)

        9.2%  9.6%  9.5%  10.1%  11.3% 

      Number of Private Loan portfolio companies

        54  46  40  31  15 

      Expense ratios (as percentage of average net assets):

                      

      Total expenses, including income tax expense

        7.4%  5.5%  4.6%  5.8%  5.8% 

      Operating expenses

        5.5%  5.6%  5.5%  5.1%  5.8% 

      Operating expenses, excluding interest expense                 

        2.6%  2.6%  2.4%  2.4%  3.0% 

      Total investment return(4)

        16.0%  37.4%  8.5%  –3.1%  16.7% 

      Total return based on change in NAV(5)

        14.2%  13.0%  11.1%  12.7%  15.1% 

      (1)
      SBIC debentures for December 31, 2017, 2016, 2015, 2014 and 2013 are $295,800, $240,000, $225,000, $225,000, and $200,200 at par, respectively, with par of $50,000 for December 31, 2017, $75,200 for December 31, 2016, 2015, 2014 and 2013 recorded at fair value of $48,608, $74,803, $73,860, $72,981 and $62,050, as of December 31, 2017, 2016, 2015, 2014, 2013, and 2012, respectively.

      (2)
      Weighted-average effective yield is calculated based on our debt investments at the end of each period and includes amortization of deferred debt origination fees and accretion of original issue discount, but excludes liquidation fees payable upon repayment and any debt investments on non-accrual status. The weighted-average annual effective yield is higher than what an investor in shares of our common stock will realize on its investment because it does not reflect any debt investments on non-accrual status, our expenses or any sales load paid by an investor. For information on our investments on non-accrual status, see "Management's Discussion and Analysis of Financial Condition and Results of Operations — Portfolio Asset Quality".

      (3)
      Including investments on non-accrual status, the weighted-average effective yield for LMM, Middle Market, and Private Loan debt investments was 11.1%, 9.0%, and 9.0%, respectively, as of December 31, 2017.

      (4)
      Total investment return is based on the purchase of stock at the current market price on the first day and a sale at the current market price on the last day of each period reported on the table and assumes reinvestment of dividends at prices obtained by our dividend reinvestment plan during the period. The return does not reflect any sales load that may be paid by an investor.

      (5)
      Total return is based on change in net asset value and was calculated using the sum of ending net asset value plus dividends to stockholders and other non-operating changes during the period, as divided by the beginning net asset value. Non-operating changes include any items that affect net asset value other than the net increase in net assets resulting from operations, such as the effects of stock offerings, shares issued under the DRIP and equity incentive plans and other miscellaneous items.

      Table of Contents

      Item 7.    Management's Discussion and Analysis of Financial Condition and Results of Operations

      The following discussion should be read in conjunction with our consolidated financial statements and the notes thereto included elsewhere in this Annual Report on Form 10-K.

      Statements we make in the following discussion which express a belief, expectation or intention, as well as those that are not historical fact, are forward-looking statements that are subject to risks, uncertainties and assumptions. Our actual results, performance or achievements, or industry results, could differ materially from those we express in the following discussion as a result of a variety of factors, including the risks and uncertainties we have referred to under the headings "Cautionary“Cautionary Statement Concerning Forward-Looking Statements"Statements” and "Risk Factors"“Risk Factors” in Part I of this report.

      ORGANIZATIONCOVID-19 UPDATE

             Main Street Capital Corporation ("MSCC") is a principal investment firm primarilyThe COVID-19 pandemic, and the related effect on the U.S. and global economies, has had, and threatens to continue to have, adverse consequences for our business and operating results, and the businesses and operating results of our portfolio companies. During the quarter ended December 31, 2021, we continued to work collectively with our employees and portfolio companies to navigate the significant challenges created by the COVID-19 pandemic and the related labor and supply constraints, rising costs, and supply chain disruptions. We remain focused on providing customized debt and equity financing to lower middle market ("LMM") companies and debt capital to middle market ("Middle Market") companies. The portfolio investmentsensuring the safety of MSCC and its consolidated subsidiaries are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in a variety of industry sectors. MSCC seeks to partner with entrepreneurs, business owners and management teams and generally provides "one stop" financing alternatives within its LMM portfolio. MSCC and its consolidated subsidiaries invest primarily in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt investments of Middle Market companies generally headquartered in the United States.

             MSCC was formed in March 2007 to operate as an internally managed business development company ("BDC") under the Investment Company Act of 1940, as amended (the "1940 Act"). MSCC wholly owns several investment funds, including Main Street Mezzanine Fund, LP ("MSMF"), Main Street Capital II, LP ("MSC II") and Main Street Capital III, LP ("MSC III" and, collectively with MSMF and MSC II, the "Funds"), and each of their general partners. The Funds are each licensed as a Small Business Investment Company ("SBIC") by the United States Small Business Administration ("SBA"). Because MSCC is internally managed, all of the executive officers and otherour employees are employed by MSCC. Therefore, MSCC does not pay any external investment advisory fees, but instead directly incurs the operating costs associated with employing investment and portfolio management professionals.

             MSC Adviser I, LLC (the "External Investment Manager") was formed in November 2013 as a wholly owned subsidiary of MSCC to provide investment management and other services to parties other than MSCC and its subsidiaries or their portfolio companies ("External Parties") and receives fee income for such services. MSCC has been granted no-action relief by the Securities and Exchange Commission ("SEC") to allow the External Investment Manager to register as a registered investment adviser under the Investment Advisers Act of 1940, as amended. Since the External Investment Manager conducts all of its investment management activities for External Parties, it is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC's consolidated financial statements.

             MSCC has elected to be treated for U.S. federal income tax purposes as a regulated investment company ("RIC") under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"). As a result, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that it distributes to its stockholders.

             MSCC has certain direct and indirect wholly owned subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"). The primary purpose of the Taxable Subsidiaries is to permit MSCC to hold equity investments in portfolio companies which are "pass-through" entities for tax purposes.

             Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our," the "Company" and "Main Street" refer to MSCC and its consolidated subsidiaries, which include the Funds and the Taxable Subsidiaries.


      Tableemployees of Contents

      OVERVIEW

             Our principal investment objective is to maximize our portfolio's total return by generating current income from our debt investments and capital appreciation from our equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. Our LMM companies generally have annual revenues between $10 million and $150 million, and our LMM portfolio investments generally range in size from $5 million to $50 million. Our Middle Market investments are made in businesses that are generally larger in size than our LMM portfolio companies, with annual revenues typically between $150 million and $1.5 billion, and our Middle Market investments generally range in size from $3 million to $20 million. Our private loan ("Private Loan") portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis. Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio.

             We seek to fill the financing gap for LMM businesses, which, historically, have had limited access to financing from commercial banks and other traditional sources. The underserved nature of the LMM creates the opportunity for us to meet the financing needs of LMM companies, while also negotiating favorable transaction termsmanaging our ongoing business activities. In this regard, we remain heavily engaged with our portfolio companies. As discussed below under “Discussion and Analysis of Results of Operations,” our investment income, principally our interest and dividend income, was negatively impacted by the economic effects of the COVID-19 pandemic in 2020. We continue to maintain access to multiple sources of liquidity, including cash, unused capacity under our Credit Facility and, as discussed under Liquidity and Capital Resources, access to capital markets for both equity participations. Ourand unsecured note issuances. As of December 31, 2021, we were in compliance with all debt covenants and do not anticipate any issues with our ability to invest across a company's capital structure, from secured loanscomply with all covenants in the future. Refer to equity securities, allows us“—Liquidity and Capital Resources” below for further discussion as of December 31, 2021.

      Neither our management nor our Board of Directors is able to offer portfolio companies a comprehensive suite of financing options, or a "one stop" financing solution. Providing customized, "one stop" financing solutions is important to LMM portfolio companies. We generally seek to partner directly with entrepreneurs, management teams and business owners in making our investments. Our LMM portfolio debt investments are generally secured by a first lien onpredict the assetsfull impact of the COVID-19 pandemic, including its duration and the magnitude of its economic and societal impact. As such, while we will continue to monitor the evolving situation and guidance from U.S. authorities, including federal, state and local public health authorities, we are unable to predict with any certainty the extent to which the outbreak will negatively affect our portfolio companycompanies’ operating results and typicallyfinancial condition or the impact that such disruptions may have a termon our results of between fiveoperations and seven years from the original investment date.

             Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have an expected duration of between three and seven years from the original investment date.

             Our Private Loan portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis, and are often referred tofinancial condition in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio. Our Private Loan portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.future.

             Our other portfolio ("Other Portfolio") investments primarily consist of investments which are not consistent with the typical profiles for our LMM, Middle Market or Private Loan portfolio investments, including investments which may be managed by third parties. In our Other Portfolio, we may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds.INVESTMENT PORTFOLIO ACTIVITY

             Our external asset management business is conducted through the External Investment Manager. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. We have entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with HMS Income Fund, Inc. ("HMS Income"). Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities.


      Table of Contents

      The following tables provide a summary of our investments in the LMM, Private Loan and Middle Market and Private Loan portfolios as of December 31, 20172021 and 20162020 (this information excludes the Other Portfolio investments, short-term portfolio investments and the External Investment Manager which are discussed further below):

          

      As of December 31, 2021

      LMM (a)

      Private Loan

      Middle Market

      (dollars in millions)

       

      Number of portfolio companies

      73

       

      75

       

      36

      Fair value

      $

      1,716.4

       

      $

      1,141.8

       

      $

      395.2

      Cost

      $

      1,455.7

       

      $

      1,157.5

       

      $

      440.9

      Debt investments as a % of portfolio (at cost)

      70.9

      %

      95.7

      %

      93.3

      %

      Equity investments as a % of portfolio (at cost)

      29.1

      %

      4.3

      %

      6.7

      %

      % of debt investments at cost secured by first priority lien

      99.0

      %

      98.7

      %

      98.7

      %

      Weighted-average annual effective yield (b)

      11.2

      %

      8.2

      %

      7.5

      %

      Average EBITDA (c)

      $

      6.2

       

      $

      41.3

       

      $

      76.0


      56


      Table of Contents

      (a)At December 31, 2021, we had equity ownership in all of our LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 40%.
      (b)The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2021, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. The weighted-average yield on our debt portfolio as of December 31, 2021 including debt investments on non-accrual status was 10.6% for our LMM portfolio, 8.0% for our Private Loan portfolio and 6.9% for our Middle Market portfolio. The weighted-average annual effective yield is not reflective of what an investor in shares of our common stock will realize on its investment because it does not reflect changes in the market value of our stock, our utilization of leverage, or debt capital, in our capital structure, our expenses or any sales load paid by an investor.
      (c)The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Private Loan and Middle Market portfolios. These calculations exclude certain portfolio companies, including three LMM portfolio companies, three Private Loan portfolio companies and one Middle Market portfolio company, as EBITDA is not a meaningful valuation metric for our investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.

          

      As of December 31, 2020

      LMM (a)

      Private Loan

      Middle Market

      (dollars in millions)

       

      Number of portfolio companies

      70

       

      63

       

      42

      Fair value

      $

      1,285.5

       

      $

      740.4

       

      $

      445.6

      Cost

      $

      1,104.6

       

      $

      769.0

       

      $

      488.9

      Debt investments as a % of portfolio (at cost)

      65.8

      %

      93.8

      %

      93.0

      %

      Equity investments as a % of portfolio (at cost)

      34.2

      %

      6.2

      %

      7.0

      %

      % of debt investments at cost secured by first priority lien

      98.1

      %

      95.4

      %

      92.4

      %

      Weighted-average annual effective yield (b)

      11.6

      %

      8.7

      %

      7.9

      %

      Average EBITDA (c)

      $

      5.3

       

      $

      58.1

       

      $

      76.5


      (a)At December 31, 2020, we had equity ownership in approximately 99% of our LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 38%.
      (b)The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2020, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. The weighted-average yield on our debt portfolio as of December 31, 2020 including debt investments on non-accrual status was 10.4% for our LMM portfolio, 8.4% for our Private Loan portfolio and 7.9% for our Middle Market portfolio. The weighted-average annual effective yield is not reflective of what an investor in shares of our common stock will realize on its investment because it does not reflect changes in the market value of our stock, our utilization of leverage, or debt capital, in our capital structure, our expenses or any sales load paid by an investor.
      (c)The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Private Loan and Middle Market portfolios. These calculations exclude certain portfolio companies, including three LMM portfolio companies, four Private Loan portfolio companies and one Middle Market portfolio company, as EBITDA is not a meaningful valuation metric for our investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.
       
       As of December 31, 2017 
       
       LMM(a) Middle Market Private Loan 
       
       (dollars in millions)
       

      Number of portfolio companies

        70  62  54 

      Fair value

       $948.2 $609.3 $467.5 

      Cost

       $776.5 $629.7 $489.2 

      % of portfolio at cost — debt

        67.1%  97.3%  93.6% 

      % of portfolio at cost — equity

        32.9%  2.7%  6.4% 

      % of debt investments at cost secured by first priority lien

        98.1%  90.5%  94.5% 

      Weighted-average annual effective yield(b)

        12.0%  9.0%  9.2% 

      Average EBITDA(c)

       $4.4 $78.3 $39.6 

      (a)
      At

      For the years ended December 31, 2017,2021 and 2020, we had equity ownership in approximately 97%achieved an annualized total return on investments of our LMM portfolio companies,16.6% and the average fully diluted equity ownership in those portfolio companies was approximately 39%.

      (b)
      The weighted average annual effective yields were computed4.1%, respectively. Total return on investments is calculated using the effective interest, rates for all debt investments at costdividend, and fee income, as of December 31, 2017, including amortization of deferred debt origination feeswell as the realized and accretion of original issue discount but excluding fees payable upon repaymentunrealized change in fair value of the debt instruments and any debtInvestment Portfolio for the specified period. Our total return on investments on non-accrual status. Weighted average annual effective yield is higher thannot reflective of what an investor in shares of our common stock will realize on its investment

      57


      because it does not reflect changes in the market value of our stock, our utilization of leverage, or debt capital, in our capital structure, our expenses or any sales load paid by an investor.

      (c)
      The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including six LMM portfolio companies, one Middle Market portfolio company and three Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for our investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.


       
       As of December 31, 2016 
       
       LMM(a) Middle Market Private Loan 
       
       (dollars in millions)
       

      Number of portfolio companies

        73  78  46 

      Fair value

       $892.6 $630.6 $342.9 

      Cost

       $760.3 $646.8 $357.7 

      % of portfolio at cost — debt

        69.1%  97.2%  93.5% 

      % of portfolio at cost — equity

        30.9%  2.8%  6.5% 

      % of debt investments at cost secured by first priority lien

        92.1%  89.1%  89.0% 

      Weighted-average annual effective yield(b)

        12.5%  8.5%  9.6% 

      Average EBITDA(c)

       $5.9 $98.6 $22.7 

      (a)
      At December 31, 2016, we had equity ownership in approximately 99% of our LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 36%.

      (b)
      The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2016, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. The weighted-average

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        annual effective yield is higher than what an investor in shares of our common stock will realize on its investment because it does not reflect our expenses or any sales load paid by an investor.

      (c)
      The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including five LMM portfolio companies, one Middle Market portfolio company and three Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for our investments in these portfolio companies.

      As of December 31, 2017,2021, we had Other Portfolio investments in eleventhirteen companies, collectively totaling approximately $104.6$166.1 million in fair value and approximately $109.4$173.7 million in cost basis and which comprised approximately 4.8%4.7% and 5.3% of our Investment Portfolio (as defined in "— Critical Accounting Policies — Basis of Presentation" below) at fair value.value and cost, respectively. As of December 31, 2016,2020, we had Other Portfolio investments in tentwelve companies, collectively totaling approximately $100.3$96.6 million in fair value and approximately $107.1$124.7 million in cost basis and which comprised approximately 3.6% and 5.0% of our Investment Portfolio at fair value.value and cost, respectively.

      As of December 31, 2021, we had one short-term portfolio investment, which was a secured debt investment that had approximately $2.0 million in both fair value and in cost basis and which comprised approximately 0.1% of our Investment Portfolio at both fair value and cost. As of December 31, 2020, we held no short-term investments.

      As previously discussed, the External Investment Manager is a wholly owned subsidiary that is treated as a portfolio investment. As of December 31, 2017, there was no cost basis in2021, this investment and the investment had a fair value of approximately $41.8$140.4 million and a cost basis of $29.5 million, which comprised approximately 1.9%3.9% and 0.9% of our Investment Portfolio at fair value.value and cost, respectively. As of December 31, 2016, there was no cost basis in2020, this investment and the investment had a fair value of approximately $30.6$116.8 million and a cost basis of $29.5 million, which comprised approximately 1.5%4.3% and 1.2% of our Investment Portfolio at fair value.value and cost, respectively.

             Our portfolio investments areCRITICAL ACCOUNTING POLICIES

      The preparation of financial statements and related disclosures in conformity with generally made through MSCCaccepted accounting principles (“GAAP”) requires management to make estimates and assumptions that affect the Funds. MSCCreported amounts of assets and liabilities, and contingent assets and liabilities at the Funds share the same investment strategies and criteria, although they are subject to different regulatory regimes. An investor's return in MSCC will depend, in part, on the Funds' investment returns as they are wholly owned subsidiaries of MSCC.

             The level of new portfolio investment activity will fluctuate from period to period based upon our viewdate of the current economic fundamentals, our abilityfinancial statements, and revenues and expenses during the periods reported. Actual results could materially differ from those estimates. Critical accounting policies are those that require management to identify new investment opportunitiesmake subjective or complex judgments about the effect of matters that meet our investment criteria,are inherently uncertain and our ability to consummate the identified opportunities. The level of new investment activity, and associated interest and fee income, will directly impact future investment income. In addition, the level of dividends paid by portfolio companies and the portion of our portfolio debt investments on non-accrual status will directly impact future investment income. While we intend to grow our portfolio and our investment income over the long term, our growth and our operating resultsmay change in subsequent periods. Changes that may be more limited during depressed economic periods. However, we intend to appropriately manage our cost structure and liquidity position based on applicable economic conditions and our investment outlook. The level of realized gainsrequired in the underlying assumptions or losses and unrealized appreciation or depreciation on our investments will also fluctuate depending upon portfolio activity, economic conditions and the performance of our individual portfolio companies. The changesestimates in realized gains and losses and unrealized appreciation or depreciationthese areas could have a material impact on our operating results.current and future financial condition and results of operations.

             Because we are internally managed, we do not pay any external investment advisory fees, but instead directly incurManagement has discussed the operating costs associateddevelopment and selection of each critical accounting policy and estimate with employing investment and portfolio management professionals. We believe that our internally managed structure provides us with a beneficial operating expense structure when compared to other publicly traded and privately held investment firms which are externally managed, and our internally managed structure allows us the opportunity to leverage our non-interest operating expenses as we grow our Investment Portfolio. For the years ended December 31, 2017 and 2016, the ratio of our total operating expenses, excluding interest expense and the non-recurring professional fees and other expenses discussed below, as a percentage of our quarterly average total assets was 1.5%. Including the effectAudit Committee of the non-recurring expenses, the ratio for the year ended December 31, 2017 was 1.6%.


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             During May 2012, we entered into an investment sub-advisory agreement with HMS Adviser, LP ("HMS Adviser"), which is the investment advisor to HMS Income, a non-listed BDC, to provide certain investment advisory services to HMS Adviser. In December 2013, after obtaining required no-action relief from the SEC to allow us to own a registered investment adviser, we assigned the sub-advisory agreement to the External Investment Manager since the fees received from such arrangement could otherwise have negative consequences on our ability to meet the source-of-income requirement necessary for us to maintain our RIC tax treatment. Under the investment sub-advisory agreement, the External Investment Manager is entitled to 50% of the base management fee and the incentive fees earned by HMS Adviser under its advisory agreement with HMS Income. The External Investment Manager has conditionally agreed to waive a limited amount of the incentive fees otherwise earned. During the years ended December 31, 2017, 2016 and 2015, the External Investment Manager earned $10.9 million, $9.5 million, and $7.8 million, respectively, of management fees (net of fees waived, if any) under the sub-advisory agreement with HMS Adviser.

             During April 2014, we received an exemptive order from the SEC permitting co-investments by us and HMS Income in certain negotiated transactions where co-investing would otherwise be prohibited under the 1940 Act. We have made, and in the future intend to continue to make, such co-investments with HMS Income in accordance with the conditions of the order. The order requires, among other things, that we and the External Investment Manager consider whether each such investment opportunity is appropriate for HMS Income and, if it is appropriate, to propose an allocation of the investment opportunity between us and HMS Income. Because the External Investment Manager may receive performance-based fee compensation from HMS Income, this may provide it an incentive to allocate opportunities to HMS Income instead of us. However, both we and the External Investment Manager haveDirectors. Our critical accounting policies and proceduresestimates include the Investment Portfolio Valuation and Revenue Recognition policies described below. Our significant accounting policies are described in placegreater detail in Note B to manage this conflict.

      CRITICAL ACCOUNTING POLICIES

        Basis of Presentation

             Ourthe consolidated financial statements are preparedincluded in accordance with generally accepted accounting principles in the United States“Item 8.– Consolidated Financial Statements and Supplementary Data” of America ("U.S. GAAP"). For each of the periods presented herein, our consolidated financial statements include the accounts of MSCC and its consolidated subsidiaries. The this Annual Report on Form 10-K.

      Investment Portfolio as used herein, refers to all of our investments in LMM portfolio companies, investments in Middle Market portfolio companies, Private Loan portfolio investments, Other Portfolio investments, and the investment in the External Investment Manager. Our results of operations and cash flows for the years ended December 31, 2017, 2016 and 2015 and financial position as of December 31, 2017 and 2016, are presented on a consolidated basis. The effects of all intercompany transactions between us and our consolidated subsidiaries have been eliminated in consolidation.Valuation

             We are an investment company following the accounting and reporting guidance in Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 946,Financial Services — Investment Companies ("ASC 946"). Under regulations pursuant to Article 6 of Regulation S-X applicable to BDCs and ASC 946, we are precluded from consolidating other entities in which we have equity investments, including those in which we have a controlling interest, unless the other entity is another investment company. An exception to this general principle in ASC 946 occurs if we hold a controlling interest in an operating company that provides all or substantially all of its services directly to us or to any of our portfolio companies. Accordingly, as noted above, our consolidated financial statements include the financial position and operating results for the Funds and the Taxable Subsidiaries. We have determined that all of our portfolio investments do not qualify for this exception, including the investment in the External Investment Manager. Therefore, our Investment Portfolio is carried on the consolidated balance sheet at fair value with any adjustments to fair value recognized as "Net Change in Unrealized Appreciation (Depreciation)" on the consolidated statements of operations until the investment is realized, usually upon exit, resulting in any gain or loss being recognized as a "Net Realized Gain (Loss)."


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        Portfolio Investment Valuation

      The most significant determination inherent in the preparation of our consolidated financial statements is the valuation of our Investment Portfolio and the related amounts of unrealized appreciation and depreciation. We consider this determination to be a critical accounting estimate, given the significant judgments and subjective measurements required. As of both December 31, 20172021 and 2016,2020, our Investment Portfolio valued at fair value represented approximately 96%97% of our total assets. We are required to report our investments at fair value. We follow the provisions of Financial Accounting Standards Board ("FASB")FASB ASC 820,Fair Value Measurements and Disclosures (" (“ASC 820"820”). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value and enhances disclosure requirements for fair value measurements. ASC 820 requires us to assume that the portfolio investment is to be sold in the principal market to independent market participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable and willing and able to transact. See "Note“Note B.1.—Valuation of the Investment Portfolio"Portfolio” in the notes to consolidated financial statements for a detailed discussion of our investment portfolio valuation process and procedures.

      58


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      Due to the inherent uncertainty in the valuation process, our determination of fair value for our Investment Portfolio may differ materially from the values that would have been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. We determine the fair value of each individual investment and record changes in fair value as unrealized appreciation or depreciation.

      In December 2020, the SEC adopted Rule 2a-5 under the 1940 Act, which permits a BDC’s board of directors to designate its executive officers or investment adviser as a valuation designee to determine the fair value for its investment portfolio, subject to the active oversight of the board. Our Board of Directors has approved policies and procedures pursuant to Rule 2a-5 (the “Valuation Procedures”) and has designated a group of our executive officers to serve as the final responsibility for overseeing, reviewing and approving, in good faith, our determination ofBoard’s valuation designee. We adopted the fair value for our Investment Portfolio and our valuation procedures, consistent with 1940 Act requirements.Valuation Procedures effective April 1, 2021. We believe our Investment Portfolio as of December 31, 20172021 and 20162020 approximates fair value as of those dates based on the markets in which we operate and other conditions in existence on those reporting dates.

      We record interest and dividend income on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded as dividends are declared by the portfolio company or at the point an obligation exists for the portfolio company to make a distribution. In accordance with our valuation policies, we evaluate accrued interest and dividend income periodically for collectability. When a loan or debt security becomes 90 days or more past due, and if we otherwise do not expect the debtor to be able to service all of its debt or other obligations, we will generally place the loan or debt security on non-accrual status and cease recognizing interest income on that loan or debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt security'ssecurity’s status significantly improves regarding the debtor'sdebtor’s ability to service the debt or other obligations, or if a loan or debt security is sold or written off, we remove it from non-accrual status.

      We may periodically provide services, including structuring and advisory services, to our portfolio companies or other third parties. For services that are separately identifiable and evidence exists to substantiate fair value, fee income is recognized as earned, which is generally when the investment or other applicable transaction closes. Fees received in connection with debt financing transactions for services that do not meet these criteria are treated as debt origination fees and are deferred and accreted into income over the life of the financing.


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      We hold certain debt and preferred equity instruments in our Investment Portfolio that contain PIK interest and cumulative dividend provisions. The PIK interest, computed at the contractual rate specified in each debt agreement, is periodically added to the principal balance of the debt and is recorded as interest income. Thus, the actual collection of this interest may be deferred until the time of debt principal repayment. Cumulative dividends are recorded as dividend income, and any dividends in arrears are added to the balance of the preferred equity investment. The actual collection of these dividends in arrears may be deferred until such time as the preferred equity is redeemed or sold. To maintain RIC tax treatment (as discussed below)in “Note B.9. – Income Taxes” in the notes to the consolidated financial statements), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though we may not have collected the PIK interest and cumulative dividends in cash. We stop accruing PIK interest and cumulative dividends and write off any accrued and uncollected interest and dividends in arrears when we determine that such PIK interest and dividends in arrears are no longer collectible. For the years ended December 31, 2017, 20162021, 2020 and 2015,2019 (i) approximately 2.4%2.6%, 3.6%,2.8% and 2.2%2.0%, respectively, of our total investment income was attributable to PIK interest income not paid currently in cash and (ii) approximately 1.6%0.6%, 1.2%,0.8% and 1.0%, respectively, of our total investment income was attributable to cumulative dividend income not paid currently in cash.

      Share-Based Compensation59


             We account for our share-based compensation plans using the fair value method, as prescribed by ASC 718,Compensation — Stock Compensation. Accordingly, for restricted stock awards, we measure the grant date fair value based upon the market price of our common stock on the date of the grant and amortize the fair value of the awards as share-based compensation expense over the requisite service period, which is generally the vesting term.

             MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC's taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally distribute at least 90% of its "investment company taxable income" (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

             The Taxable Subsidiaries primarily hold certain portfolio investments for us. The Taxable Subsidiaries permit us to hold equity investments in portfolio companies which are "pass-through" entities for tax purposes and to continue to comply with the "source-of-income" requirements contained in the RIC tax provisions of the Code. The Taxable Subsidiaries are consolidated with us for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in our consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for income tax purposes and may generate income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable income, or loss, of the Taxable Subsidiaries may differ from their book income, or loss, due to temporary book and tax timing differences and permanent differences. The Taxable Subsidiaries are each taxed at their normal corporate tax rates based on their taxable income. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the Taxable Subsidiaries are reflected in our consolidated financial statements.


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             The External Investment Manager is an indirect wholly owned subsidiary of MSCC owned through a Taxable Subsidiary and is a disregarded entity for tax purposes. The External Investment Manager has entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment Manager is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC's consolidated financial statements, and as a result of the tax sharing agreement with its Taxable Subsidiary owner, for its stand-alone financial reporting purposes the External Investment Manager is treated as if it is taxed at normal corporate tax rates based on its taxable income and, as a result of its activities, may generate income tax expense or benefit. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the External Investment Manager are reflected in the External Investment Manager's separate financial statements.

             In December 2017, the "Tax Cuts and Jobs Act" legislation was enacted. The Tax Cuts and Jobs Act includes significant changes to the U.S. corporate tax system, including a U.S. Federal corporate income tax rate reduction from 35% to 21% and other changes. ASC 740,Income Taxes, requires the effects of changes in tax rates and laws on deferred tax balances to be recognized in the period in which the legislation was enacted. As such, we have accounted for the tax effects as a result of the enactment of the Tax Cuts and Jobs Act as of December 31, 2017.

             The Taxable Subsidiaries and the External Investment Manager use the liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements, using statutory tax rates in effect for the year in which the temporary differences are expected to reverse. A valuation allowance is provided, if necessary, against deferred tax assets when it is more likely than not that some portion or all of the deferred tax asset will not be realized.

             Taxable income generally differs from net income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses. Taxable income generally excludes net unrealized appreciation or depreciation, as investment gains or losses are not included in taxable income until they are realized.

      INVESTMENT PORTFOLIO COMPOSITION

             Our LMM portfolio investments primarily consist of secured debt, equity warrants and direct equity investments in privately held, LMM companies based in the United States. Our LMM portfolio companies generally have annual revenues between $10 million and $150 million, and our LMM investments generally range in size from $5 million to $50 million. The LMM debt investments are typically secured by either a first or second priority lien on the assets of the portfolio company, generally bear interest at fixed rates, and generally have a term of between five and seven years from the original investment date. In most LMM portfolio companies, we receive nominally priced equity warrants and/or make direct equity investments in connection with a debt investment.

             Our Middle Market portfolio investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger in size than the companies included in our LMM portfolio. Our Middle Market portfolio companies generally have annual revenues between $150 million and $1.5 billion, and our Middle Market investments generally range in size from $3 million to $20 million. Our Middle Market portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

             Our Private Loan portfolio investments are primarily debt securities in privately held companies which have been originated through strategic relationships with other investment funds on a collaborative basis, and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar in size, structure, terms and conditions to investments we hold in our LMM portfolio and Middle Market portfolio. Our Private Loan portfolio debt investments are generally secured by either a first or second


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      priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

             Our Other Portfolio investments primarily consist of investments which are not consistent with the typical profiles for LMM, Middle Market and Private Loan portfolio investments, including investments which may be managed by third parties. In the Other Portfolio, we may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds.

             Our external asset management business is conducted through the External Investment Manager. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. We have entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with HMS Income. Through this agreement, we share employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities, and we allocate the related expenses to the External Investment Manager pursuant to the sharing agreement. Our total expenses for the years ended December 31, 2017, 2016 and 2015 are net of expenses allocated to the External Investment Manager of $6.4 million, $5.1 million, and $4.3 million, respectively. The External Investment Manager earns management fees based on the assets of the funds under management and may earn incentive fees, or a carried interest, based on the performance of the funds managed. The total contribution of the External Investment Manager to our net investment income consists of the combination of the expenses allocated to the External Investment Manager and the dividend income received from the External Investment Manager. For the years ended December 31, 2017, 2016 and 2015, the total contribution to our net investment income was $9.4 million, $7.9 million, and $6.5 million, respectively.

      The following tables summarize the composition of our total combined LMM portfolio investments, Middle MarketPrivate Loan portfolio investments and Private LoanMiddle Market portfolio investments at cost and fair value by type of investment as a percentage of the total combined LMM portfolio investments, Middle MarketPrivate Loan portfolio investments and Private LoanMiddle Market portfolio investments as of December 31, 20172021 and 20162020 (this information excludes the Other Portfolio, short-term portfolio investments and the External Investment Manager)Manager, which are discussed in the “Investment Portfolio Activity” section above).

      Cost:
       December 31, 2017 December 31, 2016 

       

      December 31, 2021

       

      December 31, 2020

      First lien debt

       79.0% 76.1% 

       

      82.5

      %  

      77.0

      %

      Equity

       15.3% 14.5% 

       

      16.2

      %  

      19.0

      %

      Second lien debt

       4.5% 7.7% 

       

      0.6

      %  

      2.7

      %

      Equity warrants

       0.7% 1.1% 

       

      0.3

      %  

      0.5

      %

      Other

       0.5% 0.6% 

       

      0.4

      %  

      0.8

      %

       

      100.0

      %  

      100.0

      %

       100.0% 100.0% 


      Fair Value:
       December 31, 2017 December 31, 2016 

       

      December 31, 2021

       

      December 31, 2020

       

      First lien debt

       70.5% 68.7% 

       

      74.3

      %  

      70.0

      %

       

      Equity

       24.4% 22.6% 

       

      24.6

      %  

      26.4

      %

       

      Second lien debt

       4.1% 7.2% 

       

      0.5

      %  

      2.4

      %

       

      Equity warrants

       0.6% 0.9% 

       

      0.2

      %  

      0.4

      %

       

      Other

       0.4% 0.6% 

       

      0.4

      %  

      0.8

      %

       

       

      100.0

      %  

      100.0

      %

       

       100.0% 100.0% 

      Our LMM portfolio investments, Middle MarketPrivate Loan portfolio investments and Private LoanMiddle Market portfolio investments carry a number of risks including: (1) investing in companies which may have limited operating histories and financial resources; (2) holding investments that generally are not publicly traded and which may be subject to legal and other restrictions on resale; and (3) other risks common to investing in below


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      investment grade debt and equity investments in our Investment Portfolio. Please see "Risk“Risk Factors — Risks Related to Our Investments"our Investments” for a more complete discussion of the risks involved with investing in our Investment Portfolio.

      PORTFOLIO ASSET QUALITY

      We utilize an internally developed investment rating system to rate the performance of each LMM portfolio company and to monitor our expected level of returns on each of our LMM investments in relation to our expectations for the portfolio company. The investment rating system takes into consideration various factors, including each investment'sinvestment’s expected level of returns, the collectability of our debt investments and the ability to receive a return of the invested capital in our equity investments, comparisons to competitors and other industry participants, the portfolio company'scompany’s future outlook and other factors that are deemed to be significant to the portfolio company.

             The following table shows the distribution of our LMM portfolio investments on the 1 to 5 investment rating scale at fair value as of December 31, 2017 and 2016:

       
       As of December 31, 2017 As of December 31, 2016 
      Investment Rating
       Investments at
      Fair Value
       Percentage of
      Total Portfolio
       Investments at
      Fair Value
       Percentage of
      Total Portfolio
       
       
       (dollars in thousands)
       

      1

       $276,401  29.1% $253,420  28.4% 

      2

       $251,114  26.5%  258,085  28.9% 

      3

       $342,881  36.2%  294,807  33.0% 

      4

       $65,737  6.9%  75,433  8.5% 

      5

       $12,063  1.3%  10,847  1.2% 

      Total

       $948,196  100.0% $892,592  100.0% 

             Based upon our investment rating system, the weighted-average rating of our LMM portfolio was approximately 2.2 and 2.3 as of December 31, 2017 and 2016, respectively.

      As of December 31, 2017,2021, our total Investment Portfolio had fivenine investments on non-accrual status, which comprised approximately 0.2%0.7% of its fair value and 2.3%3.3% of its cost. As of December 31, 2016,2020, our total Investment Portfolio had fourseven investments on non-accrual status, which comprised approximately 0.6%1.3% of its fair value and 3.0%3.6% of its cost.

      The operating results of our portfolio companies are impacted by changes in the broader fundamentals of the United States economy. In the event thatperiods during which the United States economy contracts, as it did due to the impact of COVID-19, it is likely that the financial results of small to mid-sized companies, like those in which we invest, could experience


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      deterioration or limited growth from current levels, which could ultimately lead to difficulty in meeting their debt service requirements, to an increase in defaults on our debt investments or in realized losses on our investments and to difficulty in maintaining historical dividend payment rates and unrealized appreciation on our equity investments. Consequently, we can provide no assurance that the performance of certain portfolio companies will not be negatively impacted by future economic cycles or other conditions, which could also have a negative impact on our future results.

      60


      DISCUSSION AND ANALYSIS OF RESULTS OF OPERATIONS

      Set forth below is a comparison of the results of operations and changes in financial condition for the years ended December 31, 2021 and 2020. The comparison of, and changes between, the fiscal years ended December 31, 2020 and 2019 can be found within “Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations” included in Part II of our annual report on Form 10-K for the fiscal year ended December 31, 2020, which is incorporated herein by reference.

        Comparison of the years ended December 31, 2021 and 2020

        Year Ended

         

        December 31,

        Net Change

            

        2021

            

        2020

            

        Amount

            

        %

        (dollars in thousands)

        Total investment income

        $

        289,047

        $

        222,614

        $

        66,433

         

        30

        %

        Total expenses

         

        (106,382)

         

        (84,669)

         

        (21,713)

         

        26

        %

        Net investment income

         

        182,665

         

        137,945

         

        44,720

         

        32

        %

        Net realized gain (loss) from investments

         

        45,336

         

        (115,947)

         

        161,283

        NM

        Net realized loss on extinguishment of debt

         

         

        (534)

         

        534

        NM

        Net unrealized appreciation (depreciation) from investments

         

        135,624

         

        (6,082)

         

        141,706

        NM

        Unrealized appreciation from SBIC debentures

         

         

        460

         

        (460)

        NM

        Total net unrealized appreciation (depreciation)

         

        135,624

         

        (5,622)

         

        141,246

        NM

        Income tax benefit (provision)

         

        (32,863)

         

        13,541

         

        (46,404)

        NM

        Net increase in net assets resulting from operations

        $

        330,762

        $

        29,383

        $

        301,379

         

        NM

        Year Ended

         

        December 31, 

        Net Change

            

        2021

            

        2020

            

        Amount

            

        %

        (dollars in thousands, except per share amounts)

         

        Net investment income

        $

        182,665

        $

        137,945

        $

        44,720

         

        32

        %

        Share‑based compensation expense

         

        10,887

         

        10,828

         

        59

         

        1

        %

        Distributable net investment income(a)

        $

        193,552

        $

        148,773

        $

        44,779

         

        30

        %

        Net investment income per share—Basic and diluted

        $

        2.65

        $

        2.10

        $

        0.55

         

        26

        %

        Distributable net investment income per share—Basic and diluted(a)

        $

        2.81

        $

        2.26

        $

        0.55

         

        24

        %


        NM

        Net Change % not meaningful

        (a)Distributable net investment income is net investment income as determined in accordance with U.S. GAAP, excluding the impact of share-based compensation expense which is non-cash in nature. We believe presenting distributable net investment income and related per share amounts is useful and appropriate supplemental disclosure of information for analyzing our financial performance since share-based compensation does not require settlement in cash. However, distributable net investment income is a non-U.S. GAAP measure and should not be considered as a replacement to net investment income and other earnings measures presented in accordance with U.S. GAAP. Instead, distributable net investment income should be reviewed only in connection with such U.S. GAAP measures in analyzing our financial performance. A reconciliation of net investment income in accordance with U.S. GAAP to distributable net investment income is presented in the table above.

        Investment Income

        Total investment income for the year ended December 31, 2017 and 2016

       
       Twelve Months
      Ended
      December 31,
       Net Change 
       
       2017 2016 Amount % 
       
       (dollars in thousands)
       

      Total investment income

       $205,741 $178,339 $27,402  15% 

      Total expenses

        (70,370) (62,537) (7,833) 13% 

      Net investment income

        135,371  115,802  19,569  17% 

      Net realized gain from investments

        16,182  29,389  (13,207)   

      Net realized loss from SBIC debentures

        (5,217)   (5,217)   

      Net change in net unrealized appreciation (depreciation) from:

                   

      Portfolio investments

        42,545  (8,305) 50,850    

      SBIC debentures and marketable securities and idle funds

        6,212  786  5,426    

      Total net change in net unrealized appreciation (depreciation)

        48,757  (7,519) 56,276    

      Income tax benefit (provision)

        (24,471) 1,227  (25,698)   

      Net increase in net assets resulting from operations

       $170,622 $138,899 $31,723  23% 


       
       Twelve Months
      Ended
      December 31,
       Net Change 
       
       2017 2016 Amount % 
       
       (dollars in thousands, except per share
      amounts)

       

      Net investment income

       $135,371 $115,802 $19,569  17% 

      Share-based compensation expense

        10,027  8,304  1,723  21% 

      Distributable net investment income(a)

       $145,398 $124,106 $21,292  17% 

      Net investment income per share — Basic and diluted

       $2.39 $2.23 $0.16  7% 

      Distributable net investment income per share — Basic and diluted(a)

       $2.56 $2.39 $0.17  7% 

      (a)
      Distributable net investment income is net investment income as determined in accordance with U.S. GAAP, excluding the impact of share-based compensation expense which is non-cash in nature. We believe presenting distributable net investment income and related per share amounts is useful and appropriate supplemental disclosure of information for analyzing our financial performance since share-based compensation does not require settlement in cash. However, distributable net investment income is a non-U.S. GAAP measure and should not be considered as a replacement to net investment income and other earnings measures presented in accordance with U.S. GAAP.

      Table of Contents

        Instead, distributable net investment income should be reviewed only in connection with such U.S. GAAP measures in analyzing our financial performance. A reconciliation of net investment income in accordance with U.S. GAAP to distributable net investment income is presented in the table above.

        Investment Income

             For the year ended December 31, 2017, total investment income2021 was $205.7$289.0 million, a 15%30% increase overfrom the $178.3$222.6 million of total investment income for the corresponding periodprior year. The following table provides a summary of 2016. Thisthe changes in the comparable period increase was principally attributable to (i) a $23.2 million increase in interest income primarily related to higher average levelsactivity.

      61


      Year Ended

      December 31, 

      Net Change

      2021

      2020

      Amount

      %

      (dollars in thousands)

      Interest Income

      $

      193,667

      $

      173,676

      $

      19,991

      12

      %

      (a)

      Dividend Income

      81,153

      36,373

      44,780

      123

      %

      (b)

      Fee Income

      14,227

      12,565

      1,662

      13

      %

      (c)

      Total Investment Income

      $

      289,047

      $

      222,614

      $

      66,433

      30

      %

      (d)


      (a)The increase in interest income was primarily due to (i) a $17.4 million increase related to higher average levels of Investment Portfolio debt investments and (ii) a $2.5 million increase related to repayment, repricing and other activities related to certain Investment Portfolio debt investments.
      (b)The increase in dividend income from Investment Portfolio equity investments was primarily a result of (i) improved operating results, financial condition and liquidity positions of certain of our portfolio companies following the impacts of the COVID-19 pandemic in 2020 and (ii) a $11.8 million increase related to elevated dividend income considered to be less consistent or non-recurring.
      (c)The increase in fee income was primarily due to a $3.4 million increase in fees from origination of debt investments resulting from higher new investment activity, partially offset by a $2.3 million decrease in fees from refinancing and prepayment of debt investments.
      (d)The increase in total investment income includes the impact of certain income considered less consistent or non-recurring, including (i) a $11.8 million increase in dividend income and (ii) a $0.3 million net increase in interest income and fee income related to accelerated prepayment, repricing and other activity related to certain Investment Portfolio debt investments.

      Expenses

             For the year ended December 31, 2017, totalTotal expenses increased to $70.4 million from $62.5 million for the corresponding period of 2016. This comparable period increase in operating expenses was principally attributable to (i) a $2.8 million increase in interest expense, primarily due to (a) an increase of $1.4 million on the Credit Facility due to the higher average interest rate during 2017, (b) a $0.9 million increase as a result of the issuance of our 4.50% Notes due 2022 in November 2017 and (c) a $0.5 million increase on the SBIC debentures due to the higher average balance as compared to 2016, (ii) a $2.4 million increase in general and administrative expenses, including approximately $0.6 million related to non-recurring professional fees and other expenses incurred on certain potential new portfolio investment opportunities which were terminated during the due diligence and legal documentation processes, (iii) a $2.2 million increase in compensation expense related to increases in the number of personnel, base compensation levels and incentive compensation accruals and (iv) a $1.7 million increase in share-based compensation expense, with these increases partially offset by a $1.3 million increase in the expenses allocated to the External Investment Manager, in each case when compared to the same period in the prior year. For the years ended December 31, 2017 and 2016, the ratio of our total operating expenses, excluding interest expense and the non-recurring professional fees and other expenses discussed above as a percentage of our quarterly average total assets was 1.5%. Including the effect of the non-recurring expenses, the ratio for the year ended December 31, 2017 was 1.6%.2021 were $106.4 million, a 26% increase from $84.7 million in the prior year. The following table provides a summary of the changes in the comparable period activity.

        Year Ended

        December 31, 

        Net Change

        2021

        2020

        Amount

        %

        (dollars in thousands)

        Employee compensation expenses

        $

        33,002

        $

        17,504

        $

        15,498

        89

        %

        (a)

        Deferred compensation plan expense

        1,440

        1,477

        (37)

        (3)

        %

        Total compensation expense

        34,442

        18,981

        15,461

        81

        %

        G&A expense

        12,494

        12,702

        (208)

        (2)

        %

        Interest expense

        58,836

        49,587

        9,249

        19

        %

        (b)

        Share-based compensation expense

        10,887

        10,828

        59

        1

        %

        Gross expenses

        116,659

        92,098

        24,561

        27

        %

        Allocation of expenses to the external investment manager

        (10,277)

        (7,429)

        (2,848)

        38

        %

        (c)

        Total expenses

        $

        106,382

        $

        84,669

        $

        21,713

        26

        %


        (a)The increase in employee compensation expenses was primarily due to an increase in our variable incentive compensation accruals related to our improved operating results in 2021.
        (b)The increase in interest expense is primarily related to increased leverage levels to support our investment activity in the year ended December 31, 2021 as compared to the prior year. These borrowings included (i) an aggregate of $500.0 million in aggregate principal amount of our 3.00% Notes issued in January and October 2021 and (ii) an additional $125.0 million aggregate principal amount which we issued under our 5.20% Notes in July 2020, partially offset by decreased interest expense relating to our Credit Facility due to the lower average balance outstanding and the lower average interest rate.

      62


      (c)The increase in the allocation of expenses to the External Investment Manager primarily relates to the impact of the transaction in October 2020, whereby the External Investment Manager became the sole investment adviser to MSC Income and the increased assets under management by the External Investment Manager.

      Net Investment Income

      Net investment income for the year ended December 31, 2017 was $135.42021 increased 32% to $182.7 million, or a 17% increase,$2.65 per share, compared to net investment income of $115.8$137.9 million, or $2.10 per share, for the corresponding period of 2016.prior year. The increase in net investment income was principally attributable to the increase in total investment income, partially offset by higher operating expenses, both as discussed above.

        Distributable Net Investment Income

             For the year ended December 31, 2017, distributable The increase in net investment income increased 17% to $145.4 million, or $2.56 per share compared with $124.1 million, or $2.39 per share in 2016. Thereflects these changes, as well as the increase in distributable net investment income was primarily due to the higher level of total investment income, partially offset by higher operating expenses both as discussed above. Distributable net investment income on


      Table of Contents

      a per share basisweighted average shares outstanding for the year ended December 31, 2017 reflects an (i) increase of approximately $0.16 per share from the comparable period in 2016 attributable to the net increase in the comparable levels of accelerated prepayment, repricing and other, unusual activity for certain Investment Portfolio debt investments and (ii) a greater number of average shares outstanding compared to the corresponding period in 20162021, primarily due to shares issued through the ATM Program (as defined in "— “—Liquidity and Capital Resources — Resources—Capital Resources"Resources” below), shares issued pursuant to our equity incentive plans and shares issued pursuant to our dividend reinvestment plan.

        Net Increase in Net Assets Resulting from Operations

      The net increase in net assets resultinginvestment income on a per share basis includes the impacts of an increase of $0.17 per share due to the increase in investment income from operations duringcertain dividend income activity considered less consistent or non-recurring, as discussed above.

      Distributable Net Investment Income

      Distributable net investment income for the year ended December 31, 2017 was $170.62021 increased 30% to $193.6 million, or $3.01$2.81 per share, compared with $138.9$148.8 million, or $2.67$2.26 per share, duringin the prior year. The increase in distributable net investment income was primarily due to the increased level of total investment income, partially offset by higher operating expenses, both as discussed above. The increase in distributable net investment income on a per share basis for the year ended December 31, 2016. This $31.7 million2021 also reflects the impacts of the increase in investment income from certain dividend activity considered less consistent or non-recurring and a greater number of average shares outstanding compared to the prior year, was primarilyboth as discussed above.

      Net Realized Gain (Loss) from Investments

      The following table provides a summary of the resultprimary components of (i) a $56.3 million improvement inthe total net change in unrealized appreciation (depreciation) from portfoliorealized gain on investments and SBIC debentures, including the impact of accounting reversals relating to realized gains/income (losses), from net unrealized depreciation of $7.5$45.3 million for the year ended December 31, 20162021:

      Year Ended December 31, 2021

      Full Exits

      Partial Exits

      Restructures

      Other (a)

      Total (a)

      Net Gain/(Loss)

      # of Investments

      Net Gain/(Loss)

      # of Investments

      Net Gain/(Loss)

      # of Investments

      Net Gain/(Loss)

      Net Gain/(Loss)

      (dollars in thousands)

      LMM Portfolio

      $

      51,019

      7

      $

      -

      -

      $

      (10,925)

      1

      $

      (493)

      $

      39,601

      Private Loan Portfolio

      5,547

      2

      -

      -

      -

      -

      45

      5,592

      Middle Market Portfolio

      (3,749)

      3

      6,153

      1

      (4,528)

      1

      464

      (1,660)

      Other Portfolio

      (4,449)

      1

      5,920

      4

      -

      -

      351

      1,822

      Short-term Portfolio

      -

      -

      -

      -

      -

      -

      (19)

      (19)

      Total net realized gain/(loss)

      $

      48,368

      13

      $

      12,073

      5

      $

      (15,453)

      2

      $

      348

      $

      45,336

      (a)Other activity includes realized gains and losses from transactions involving 27 portfolio companies which are not considered to be significant individually or in the aggregate.

      63


      The following table provides a summary of the primary components of the total net unrealized appreciationrealized loss on investments of $48.8$115.9 million for the year ended December 31, 2017, which includes the impact of approximately $15.0 million of unrealized appreciation in the LMM equity portfolio related to the enactment of the Tax Cuts and Jobs Act (see further discussion above in "— Critical Accounting Policies — Income Taxes") and (ii) a $19.6 million increase in net investment income as discussed above, with these increases partially offset by (i) a $25.7 million change in the income tax benefit (provision) from an income tax benefit of $1.2 million for the year ended December 31, 2016 to an income tax provision of $24.5 million for the year ended December 31, 2017, (ii) a $13.2 million decrease in the net realized gain from investments to a total net realized gain from investments of $16.2 million for the year ended December 31, 2017 and (iii) a $5.2 million realized loss on the repayment of SBIC debentures outstanding at MSC II which had previously been accounted for on the fair value method of accounting. The net realized gain from investments of $16.2 million for the year ended December 31, 2017 was primarily the result of (i) the net realized gain of $11.8 million resulting from gains on the exits of five LMM investments and losses on the exits of four LMM investments, (ii) realized gains of $9.3 million due to activity in our Other Portfolio, (iii) net realized gains of $3.0 million in our Private Loan portfolio resulting from gains on the exits of two Private Loan investments and a loss on the restructure of a Private Loan investment, (iv) realized gains of $2.1 million related to other activity in the LMM portfolio and (v) the net realized loss of $9.8 million in our Middle Market portfolio, which is primarily the result of (a) realized losses of $7.9 million on the exits of two Middle Market investments and (b) the realized loss of $3.5 million on the restructure of a Middle Market investment, with these changes partially offset by $1.5 million of net realized gains on other activity in our Middle Market portfolio. The realized loss of $5.2 million on the repayment of SBIC debentures is related to the previously recognized bargain purchase gain resulting from recording the MSC II debentures at fair value on the date of the acquisition of the majority of the equity interests of MSC II in 2010. The effect of the realized loss is offset by the reversal of all previously recognized unrealized depreciation on these SBIC debentures due to fair value adjustments since the date of the acquisition.2020:


      Year Ended December 31, 2020

      Full Exits

      Partial Exits

      Restructures

      Other (a)

      Total (a)

      Net Gain/(Loss)

      # of Investments

      Net Gain/(Loss)

      # of Investments

      Net Gain/(Loss)

      # of Investments

      Net Gain/(Loss)

      Net Gain/(Loss)

      (dollars in thousands)

      LMM Portfolio

      $

      (5,937)

      5

      $

      (12,880)

      5

      $

      -

      -

      $

      (262)

      $

      (19,079)

      Private Loan Portfolio

      (29,075)

      2

      -

      -

      (14,914)

      2

      (627)

      (44,616)

      Middle Market Portfolio

      (22,503)

      6

      -

      -

      (30,594)

      4

      (58)

      (53,154)

      Other Portfolio

      -

      -

      -

      -

      -

      -

      903

      903

      Total Net Realized Gain/(Loss)

      $

      (57,514)

      13

      $

      (12,880)

      5

      $

      (45,509)

      6

      $

      (44)

      $

      (115,947)

      (a)Other activity includes realized gains and losses from transactions involving 37 portfolio companies which are not considered to be significant individually or in the aggregate.

      Table of Contents

      Net Unrealized Appreciation (Depreciation)

      The following table provides a summary of the total net unrealized appreciation of $48.8$135.6 million for the year ended December 31, 2017:2021:

      Year Ended December 31, 2021

      Private

      Middle

          

      LMM(a)

          

      Loan

          

      Market

          

      Other

      Total

       

      (dollars in millions)

      Accounting reversals of net unrealized (appreciation) depreciation recognized in prior periods due to net realized (gains / income) losses recognized during the current period

      $

      (27.5)

      $

      (3.7)

      $

      1.5

      $

      4.2

      $

      (25.5)

      Net unrealized appreciation (depreciation) relating to portfolio investments

       

      107.2

       

      17.2

       

      (3.7)

       

      40.4

      (b)

       

      161.1

      Total net unrealized appreciation (depreciation) relating to portfolio investments

      $

      79.7

      $

      13.5

      $

      (2.2)

      $

      44.6

      $

      135.6

       
       Twelve Months Ended December 31, 2017 
       
       LMM(a) Middle
      Market
       Private Loan Other(b) Total 
       
       (dollars in millions)
       

      Accounting reversals of net unrealized (appreciation) depreciation recognized in prior periods due to net realized (gains)/(income) losses recognized during the current period

       $(11.1)$5.6 $(3.1)$(8.1)$(16.7)

      Net change in unrealized appreciation (depreciation) relating to portfolio investments

        50.6  (9.6) (3.1) 21.4  59.3 

      Total net change in unrealized appreciation (depreciation) relating to portfolio investments

       $39.5 $(4.0)$(6.2)$13.3 $42.6 

      Unrealized appreciation relating to SBIC debentures(c)

                    6.2 

      Total net change in unrealized appreciation

                   $48.8 

      (a)
      LMM includes unrealized appreciation on 39
      (a)Includes unrealized appreciation on 43 LMM portfolio investments and unrealized depreciation on 23 LMM portfolio investments.
      (b)Includes (i) $23.7 million of unrealized appreciation relating to the External Investment Manager and (ii) $16.3 million of net unrealized appreciation relating to the Other Portfolio.

      64


      The following table provides a summary of the total net unrealized depreciation on 25 LMM portfolio investments.

      (b)
      Other includes $11.2of $5.6 million of unrealized appreciation relating tofor the External Investment Manager and $10.2 million of net unrealized appreciation relating to the Other Portfolio.

      (c)
      Relates to unrealized appreciation on the SBIC debentures held by MSC II which are accounted for on a fair value basis and includes $6.0 million of accounting reversals resulting from the reversal of previously recognized unrealized depreciation recorded since the date of acquisition of MSC II on the debentures repaid due to fair value adjustments since such date and $0.2 million of current period unrealized appreciation on the remaining SBIC debentures.
      year ended December 31, 2020:

      Year Ended December 31, 2020

      Private

      Middle

          

      LMM(a)

          

      Loan

          

      Market

          

      Other

      Total

       

      (dollars in millions)

      Accounting reversals of net unrealized (appreciation) depreciation recognized in prior periods due to net
      realized (gains / income) losses recognized during the current period

      $

      11.0

      $

      48.4

      $

      50.0

      $

      0.0

      $

      109.4

      Net unrealized appreciation (depreciation) relating to portfolio investments

       

      (34.7)

       

      (34.6)

       

      (43.1)

       

      (3.0)

      (b)

       

      (115.5)

      Total net unrealized appreciation (depreciation) relating to portfolio investments

      $

      (23.7)

      $

      13.7

      $

      6.9

      $

      (3.0)

      $

      (6.1)

      Unrealized appreciation relating to SBIC debentures (c)

       

      0.5

      Total net unrealized depreciation

      $

      (5.6)


      (a)

      Includes unrealized appreciation on 31 LMM portfolio investments and unrealized depreciation on 34 LMM portfolio investments.

      (b)

      Includes $16.5 million of net unrealized depreciation relating to the Other Portfolio, partially offset by $12.7 million of unrealized appreciation relating to the External Investment Manager.

      (c)

      Relates to unrealized depreciation on the SBIC debentures previously issued by Main Street Capital II, LP, a former wholly owned SBIC whose activities have been wound down, which were accounted for on a fair value basis.

      Income Tax Benefit (Provision)

      The income tax provision for the year ended December 31, 20172021 of $24.5$32.9 million principally consisted of (i) a deferred tax provision of $19.3$27.1 million, which is primarily the result of the net activity relating to our portfolio investments held in our Taxable Subsidiaries, including changes in loss carryforwards, changes in net unrealized appreciation/depreciation and other temporary and permanent book-tax differences, and other(ii) a current tax expenseprovision of $5.2$5.7 million related to (i) a $1.9$2.6 million accrualprovision for excise tax on our estimated undistributed taxable income and (ii)a $3.1 million provision for current tax expense of $3.3 million related to accruals for U.S. federal and state income taxes.


      Table of Contents

        Comparison of the years ended December 31, 2016 and 2015

       
       Twelve Months
      Ended
      December 31,
       Net Change 
       
       2016 2015 Amount % 
       
       (dollars in thousands)
       

      Total investment income

       $178,339 $164,589 $13,750  8% 

      Total expenses

        (62,537) (57,515) (5,022) 9% 

      Net investment income

        115,802  107,074  8,728  8% 

      Net realized gain (loss) from investments

        29,389  (21,316) 50,705    

      Net change in net unrealized appreciation (depreciation) from:

                   

      Portfolio investments

        (8,305) 11,048  (19,353)   

      SBIC debentures and marketable securities and idle funds

        786  (1,056) 1,842    

      Total net change in net unrealized appreciation (depreciation)

        (7,519) 9,992  (17,511)   

      Income tax benefit

        1,227  8,687  (7,460)   

      Net increase in net assets resulting from operations

       $138,899 $104,437 $34,462  33% 


       
       Twelve Months
      Ended
      December 31,
       Net Change 
       
       2016 2015 Amount % 
       
       (dollars in thousands, except per share amounts)
       

      Net investment income

       $115,802 $107,074 $8,728  8% 

      Share-based compensation expense

        8,304  6,262  2,042  33% 

      Distributable net investment income(a)

       $124,106 $113,336 $10,770  10% 

      Net investment income per share — Basic and diluted

       $2.23 $2.18 $0.05  2% 

      Distributable net investment income per share — Basic and diluted(a)

       $2.39 $2.31 $0.08  3% 

      (a)
      Distributable net investment income is net investment income as determined in accordance with U.S. GAAP, excluding the impact of share-based compensation expense which is non-cash in nature. We believe presenting distributable net investment income and related per share amounts is useful and appropriate supplemental disclosure of information for analyzing our financial performance since share-based compensation does not require settlement in cash. However, distributable net investment income is a non-U.S. GAAP measure and should not be considered as a replacement to net investment income and other earnings measures presented in accordance with U.S. GAAP. Instead, distributable net investment income should be reviewed only in connection with such U.S. GAAP measures in analyzing our financial performance. A reconciliation of net investment income in accordance with U.S. GAAP to distributable net investment income is presented in the table above.

        Investment Income

             For the year ended December 31, 2016, total investment income was $178.3 million, an 8% increase over the $164.6 million of total investment income for the corresponding period of 2015. This comparable period increase was principally attributable to (i) a $7.4 million increase in interest income primarily related to


      Table of Contents

      higher average levels of portfolio debt investments and (ii) a $7.9 million increase in dividend income from Investment Portfolio equity investments, partially offset by (i) a $0.7 million decrease in fee income and (ii) a $0.8 million decrease in investment income from Marketable securities and idle funds investments (as defined below). The $13.8 million increase in total investment income in the year ended December 31, 2016 includes an increase of $1.7 million related to dividend income activity from portfolio companies that is considered to be less consistent on a recurring basis or non-recurring during the period when compared to the same period in 2015, partially offset by a decrease of $0.4 million primarily related to lower accelerated prepayment and repricing activity for certain Investment Portfolio debt investments when compared to the same period in 2015.

        Expenses

             For the year ended December 31, 2016, total expenses increased to $62.5 million from $57.5 million for the corresponding period of 2015. This comparable period increase in operating expenses was principally attributable to (i) a $2.0 million increase in share-based compensation expense, (ii) a $1.6 million increase in compensation expense related to increases in the number of personnel, base compensation levels and incentive compensation accruals, (iii) a $1.5 million increase in interest expense, primarily due to an increase in interest expense on the Credit Facility due to the higher average interest rate and balance outstanding in the year ended December 31, 2016 and (iv) a $0.7 million increase in general and administrative expenses, with these increases partially offset by a $0.8 million increase in the expenses allocated to the External Investment Manager, in each case when compared to the same period in the prior year. For the year ended December 31, 2016, the ratio of our total operating expenses, excluding interest expense, as a percentage of our quarterly average total assets was 1.5% compared to 1.4% for the year ended December 31, 2015.

        Net Investment Income

             Net investment income for the year ended December 31, 2016 was $115.8 million, or an 8% increase, compared to net investment income of $107.1 million for the corresponding period of 2015. The increase in net investment income was principally attributable to the increase in total investment income, partially offset by higher operating expenses as discussed above.

        Distributable Net Investment Income

             For the year ended December 31, 2016, distributable net investment income increased 10% to $124.1 million, or $2.39 per share, compared with $113.3 million, or $2.31 per share, in the corresponding period of 2015. The increase in distributable net investment income was primarily due to the higher level of total investment income, partially offset by higher operating expenses both as discussed above. Distributable net investment income on a per share basis for the year ended December 31, 2016 reflects an increase of approximately $0.03 per share from the comparable period in 2015 attributable to the increase in dividend income that is considered to be less consistent on a recurring basis or non-recurring, partially offset by (i) a decrease of approximately $0.01 per share from the comparable period in 2015 attributable to the net decrease in the comparable levels of accelerated prepayment, repricing and other activity for certain Investment Portfolio debt investments and (ii) a greater number of average shares outstanding compared to the corresponding period in 2015 primarily due to the March 2015 equity offering, shares issued through the ATM Program (as defined in "— Liquidity and Capital Resources — Capital Resources" below) and shares issued pursuant to our restricted stock plan and dividend reinvestment plan.

        Net Increase in Net Assets Resulting from Operations

             The net increase in net assets resulting from operations during the year ended December 31, 2016 was $138.9 million, or $2.67 per share, compared with $104.4 million, or $2.13 per share, during the year ended December 31, 2015. This $34.5 million increase from the same period in the prior year period was primarily the result of (i) a $50.7 million increase in the net realized gain (loss) from investments from a net realized loss of $21.3 million during the year ended December 31, 2015 to a net realized gain of $29.4 million for the


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      year ended December 31, 2016 and (ii) an $8.7 million increase in net investment income as discussed above, partially offset by (i) a $17.5 million decrease in net change in unrealized appreciation (depreciation), including accounting reversals relating to the realized gains (losses), from net unrealized appreciation of $10.0 million for the year ended December 31, 2015 to net unrealized depreciation of $7.5 million for the year ended December 31, 2016 and (ii) a $7.5 million decrease in the income tax benefit from the same period in the prior year. The net realized gain of $29.4 million for the year ended December 31, 2016 was primarily the result of (i) the net realized gain of $57.5 million on the exit five LMM investments and (ii) the net realized gain of $4.2 million due to activity in our Other Portfolio, partially offset by (i) the realized loss of $9.6 million on the exit of three Private Loan investments, (ii) the realized loss of $17.0 million related to the restructuring of five Middle Market investments, (iii) the net realized loss of $4.7 million on the exit of two Middle Market investments and (iv) the realized loss of $1.6 million on the exit of a Marketable securities and idle funds investment.

             The following table provides a summary of the total net unrealized depreciation of $7.5 million for the year ended December 31, 2016:

       
       Twelve Months Ended December 31, 2016 
       
       LMM(a) Middle
      Market
       Private
      Loan
       Other(b) Total 
       
       (dollars in millions)
       

      Accounting reversals of net unrealized (appreciation) depreciation recognized in prior periods due to net realized (gains)/losses recognized during period

       $(53.1)$25.7 $9.5 $(3.5)$(21.4)

      Net change in unrealized appreciation (depreciation) relating to portfolio investments

        8.2  8.4  (4.0) 0.5  13.1 

      Total net change in unrealized appreciation (depreciation) relating to portfolio investments

       $(44.9)$34.1 $5.5 $(3.0)$(8.3)

      Net change in unrealized appreciation relating to marketable securities

                    1.7 

      Unrealized depreciation relating to SBIC debentures(c)

                    (0.9)

      Total net change in unrealized appreciation (depreciation)

                   $(7.5)

      (a)
      LMM includes unrealized appreciation on 31 LMM portfolio investments and unrealized depreciation on 27 LMM portfolio investments.

      (b)
      Other includes $3.3 million of unrealized appreciation relating to the External Investment Manager offset by $2.8 million of net unrealized depreciation relating to the Other Portfolio.

      (c)
      Relates to unrealized depreciation on the SBIC debentures held by MSC II which are accounted for on a fair value basis.

      The income tax benefit for the year ended December 31, 20162020 of $1.2$13.5 million principally consisted of a deferred tax benefit of $3.3$14.1 million, which is primarily the result of the net activity relating to our portfolio investments held in our Taxable Subsidiaries, including changes in loss carryforwards, changes in net unrealized appreciation/depreciation and other temporary and permanent book-tax differences, partially offset by othera current tax expenseprovision of $0.5 million, primarily related to (i) a $1.7$1.6 million accrualprovision for excise tax on our estimated undistributed taxable income and (ii) othera $1.1 million benefit for current tax expense of $0.4 million related to accruals for U.S. federal and state income taxes.

      Net Increase (Decrease) in Net Assets Resulting from Operations

      The net increase in net assets resulting from operations for the year ended December 31, 2021 was $330.8 million, or $4.80 per share, compared with $29.4 million, or $0.45 per share, during the year ended December 31, 2020. The tables above provide a summary of the reasons for the change in Net Increase in Net Assets Resulting from Operations for the year ended December 31, 2021 as compared to the year ended December 31, 2020.


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      Liquidity and Capital Resources

      This “Liquidity and Capital Resources” section should be read in conjunction with the “COVID-19 Update” section above.

      Cash Flows

      For the year ended December 31, 2017,2021, we experiencedrealized a net increase in cash and cash equivalents in the amount of approximately $27.0$0.7 million, which is the net result of approximately $72.9$515.4 million of cash used in our operating activities and $516.1 million of cash provided by our operating activities and approximately $45.9financing activities.

      The $515.4 million of cash used in financing activities.

             During the period, $72.9 million of cash was provided by our operating activities which resulted primarily from (i) cash flows we generated from the operating profits earned through our operating activities totaling $123.1 million, which is our $145.4 million of distributable net investment income, excluding the non-cash effects of the accretion of unearned income of $17.0 million, payment-in-kind interest income of $4.9 million, cumulative dividends of $3.2 million and the amortization expense for deferred financing costs of $2.8 million, (ii) cash uses totaling $876.7$1,763.8 million for the funding of new and follow-on portfolio company investments and settlement of accruals for portfolio investments existing as of December 31, 2016, and (iii)2020, partially offset by (i) cash proceeds totaling $826.5$1,054.5 million from (a) $819.4 million in cash proceeds from the sales and repayments of debt investments and sales of and return on capital offrom equity investments, (b) $4.5(ii) cash flows that we generated from the operating profits earned totaling $171.7 million, which is our distributable net investment income, excluding the non-cash effects of the accretion of unearned income, payment-in-kind interest income, cumulative dividends and the amortization expense for deferred financing costs, and (iii) cash proceeds of $22.2 million related to decreaseschanges in other assets and (c) $2.6liabilities.

      The $516.1 million related to increases in payables and accruals.

             During the year ended December 31, 2017, $45.9 million inof cash was used inprovided by our financing activities which principally consisted of (i) $150.9$500.0 million in cash proceeds from the initial and follow-on issuances of the 3.00% Notes, (ii) $98.9 million in net cash proceeds from theour ATM Program (described below), (ii) $185.0 and direct stock purchase plan, (iii) $80.2 million in cash proceeds from the issuance of 4.50% Notes due 2022 in November 2017SBIC debentures and (iii) $81.0(iv) $51.0 million in cashnet proceeds from issuance of SBIC debentures,the Credit Facility, partially offset by (i) $279.0 million in net repayments on the Credit Facility and (ii) $148.4$160.5 million in cash dividends paid to stockholders, (iii) $25.2(ii) $40.0 million in repayment of SBIC debentures, (iii) $4.4$8.2 million for debt issuance premiums, net of payments of deferred debt issuance costs, SBIC debenture fees and other costs, and (iv) $5.3 million for purchases of vested restricted stock from employees to satisfy their tax withholding requirements upon the vesting of such restricted stock and (iv) $5.9 million for payment of deferred debt issuance costs, SBIC debenture fees and other costs.stock.

      For the year ended December 31, 2016,2020, we experienced a net increasedecrease in cash and cash equivalents in the amount of approximately $4.1$23.3 million, which is the net result of approximately $42.7$54.1 million of cash used byin our operating activities and approximately $46.9$30.8 million of cash provided by our financing activities.

             During the period, we used $42.7The $54.1 million of cash fromused in our operating activities which resulted primarily from (i) cash flows we generated from the operating profits earned through our operating activities totaling $107.8 million, which is our $124.1 million of distributable net investment income, excluding the non-cash effects of the accretion of unearned income of $10.2 million, payment-in-kind interest income of $6.5 million, cumulative dividends of $2.2 million and the amortization expense for deferred financing costs of $2.6 million, (ii) cash uses totaling $641.7$669.0 million which primarily resulted from (a)for the funding of new and follow-on portfolio company investments, including the transaction pursuant to which the External Investment Manager became the sole investment adviser to MSC Income, and settlement of accruals for portfolio investments existing as of December 31, 2015, which collectively total $641.2 million, and (b) $0.5 million from the purchase of Marketable securities and idle funds investments and (iii)2019, partially offset by (i) cash proceeds totaling $491.2$478.0 million from (a) $486.2 million in cash proceeds from the sales and repayments of debt investments and sales of and return on capital of equity investments, (ii) cash flows we generated from the operating profits earned totaling $131.5 million, which is our distributable net investment income, excluding the non-cash effects of the accretion of unearned income, payment-in-kind interest income, cumulative dividends and (b) $4.3the amortization expense for deferred financing costs, and (iii) cash proceeds of $5.4 million related to changes in other assets and liabilities.

      The $30.8 million of cash proceeds from the sale of Marketable securities and idle funds investments and (c) $0.7 million related to increases in payables and accruals.

             During the year ended December 31, 2016, $46.9 million in cash was provided by our financing activities which principally consisted of (i) $112.0$125.0 million in proceeds from the follow-on issuance of the 5.20% Notes in July 2020, (ii) $84.4 million in net cash proceeds from theour ATM Program (described below), (ii) $52.0 million in net cash proceeds from the Credit Facility and direct stock purchase plan, (iii) $15.0$40.0 million in cash proceeds from the issuance of SBIC debentures and (iv) $0.7 million for debt issuance premiums, net of payments of deferred debt issuance costs, SBIC debenture fees and other costs, partially offset by (i) $127.5$144.5 million in cash dividends paid to stockholders, (ii) $2.6$42.0 million in repayment of SBIC debentures, (iii)  $31.0 million in net repayments on the Credit Facility and (iv) $1.9 million for purchases of vested restricted stock from employees to satisfy their tax withholding requirements upon the vesting of such restricted stock and (iii) $2.0 million for payment of deferred loan costs, SBIC debenture fees and other costs.stock.


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      Capital Resources

      As of December 31, 2017,2021, we had $51.5$32.6 million in cash and cash equivalents and $521.0$535.0 million of unused capacity under the Credit Facility, before considering the accordion feature discussed below, which we maintain to support our investment and operating activities. As of December 31, 2017,2021, our net asset value totaled $1,380.4$1,788.8 million, or $23.53$25.29 per share.

      The Credit Facility was amended in September 2017provides additional liquidity to increasesupport our investment and operational activities. As of December 31, 2021, the Credit Facility included total commitments to $585.0of $855.0 million from a diversified group of fifteen lenders. The Credit Facility matures18 lenders, held a maturity date in September 2021April 2026 and containscontained an accordion feature which allowsallowed us to increase the total commitments under the facility to up to $750.0$1,200.0 million from new and existing lenders on the same terms and conditions as the existing commitments.

             Borrowings As of December 31, 2021, borrowings under the Credit Facility bearbore interest, subject to our election and resetting on a monthly basis on the first of each month, on a per annum basis at a rate equal to the applicable LIBOR rate (1.56%(0.1% as of December 31, 2017)2021) plus (i) 1.875% (or the applicable base rate (Prime Rate of 4.50%3.25% as of December 31, 2017)2021) plus 0.875%) as long as we maintain an investment grade rating and meet certain agreed upon excess collateral and maximum leverage requirements or (ii) 2.0% (or the applicable base rate plus 1.0%) if we maintain an investment grade rating but do not meet certain excess collateral and maximum leverage requirements or (iii) 2.25% (or the applicable base rate plus 1.25%) if we do not maintain an investment grade rating.otherwise. We pay unused commitment fees of 0.25% per annum on the unused lender commitments under the Credit Facility. The Credit Facility is secured by a first lien on the assets of MSCC and its subsidiaries, excluding the equity ownership or assets of the Funds and the External Investment Manager. TheAs of December 31, 2021, the Credit Facility containscontained certain affirmative and negative covenants, including but not limited to: (i) maintaining a minimum availability of at least 10% of the borrowing base,liquidity, (ii) maintaining an interest coverage ratio of at least 2.0 to 1.0, (iii) maintaining ana 1940 Act asset coverage ratio of at least 1.5 to 1.0, and (iv) maintaining a minimum tangible net worth. Theworth and (v) maintaining a minimum asset coverage ratio of 200% with respect to the consolidated assets (with certain limitations on the contribution of equity in financing subsidiaries as specified therein) of MSCC and the guarantors under the Credit Facility is provided on a revolving basis through its final maturity date in September 2021,to the secured debt of MSCC and contains two, one-year extension options which could extend the final maturity by up to two years, subject to certain conditions, including lender approval.guarantors. As of December 31, 2017,2021, we had $64.0$320.0 million in borrowings outstanding under the Credit Facility, the interest rate on the Credit Facility was 3.2%2.0% (based on the LIBOR rate of 0.1% as of the most recent reset date of January 1, 2022 plus 1.875%) and we were in compliance with all financial covenants of the Credit Facility.

      Through the Funds, we have the ability to issue SBIC debentures guaranteed by the SBA at favorable interest rates and favorable terms and conditionsconditions. Under existing SBIC regulations, SBA-approved SBICs under common control have the ability to issue debentures guaranteed by the SBA up to a regulatory maximum amount of $350.0 million. Under existing SBA-approved commitments, we had $350.0 million of outstanding SBIC debentures guaranteed by the SBA as of December 31, 2021 through our wholly owned SBICs, which bear a weighted-average annual fixed interest rate of approximately 2.9%, paid semiannually, and mature ten years from issuance. The first maturity related to our SBIC debentures occurs in 2023, and the weighted-average remaining duration is approximately 6.1 years as of December 31, 2021. During the year ended December 31, 2017, we2021, Main Street issued $81.0$80.2 million of SBIC debentures and opportunistically prepaid $25.2$40.0 million of our existing SBIC debentures that were scheduled to mature over the next year as part of an effort to manage the maturity dates of ourthe oldest SBIC debentures, leaving $54.2 million of remaining capacity under our SBIC licenses.debentures. Debentures guaranteed by the SBA have fixed interest rates that equal prevailing 10-year Treasury Note rates plus a market spread and have a maturity of ten years with interest payable semiannually. The principal amount of the debentures is not required to be paid before maturity, but may be pre-paid at any time with no prepayment penalty. We expect to issue newmaintain SBIC debentures under the SBIC program in the future, subject to periodic repayments and borrowings, in an amount up to the regulatory maximum amount of $350.0 million for affiliated SBIC funds. As of December 31,

      In November 2017, through our three wholly owned SBICs, we had $295.8 million of outstanding SBIC debentures guaranteed by the SBA, which bear a weighted-average annual fixed interest rate of approximately 3.6%, paid semiannually, and mature ten years from issuance. The first maturity related to our SBIC debentures occurs in 2019, and the weighted-average remaining duration is approximately 5.8 years as of December 31, 2017.

             In April 2013, we issued $92.0$185.0 million including the underwriters' full exercise of their over-allotment option, in aggregate principal amount of the 6.125% Notes4.50% unsecured notes due December 1, 2022 (the "6.125% Notes"“4.50% Notes”) at an issue price of 99.16%. The 6.125%4.50% Notes are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 6.125% Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 6.125% Notes mature on April 1, 2023, and may be redeemed


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      in whole or in part at any time or from time to time at our option on or after April 1, 2018. We may from time to time repurchase 6.125% Notes in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2017, the outstanding balance of the 6.125% Notes was $90.7 million.

             The indenture governing the 6.125% Notes (the "6.125% Notes Indenture") contains certain covenants, including covenants requiring our compliance with (regardless of whether we are subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring us to provide financial information to the holders of the 6.125% Notes and the Trustee if we cease to be subject to the reporting requirements of the Securities Exchange Act of 1934. These covenants are subject to limitations and exceptions that are described in the 6.125% Notes Indenture.

             In November 2014, we issued $175.0 million in aggregate principal amount of the 4.50% Notes (the "4.50% Notes due 2019") at an issue price of 99.53%. The 4.50% Notes due 2019 are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 4.50% Notes due 2019;Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50% Notes due 2019 mature on December 1, 2019, and may be redeemed in whole or in part at any time at our option subject to certain make-whole provisions. The 4.50% Notes due 2019 bear interest at a rate of 4.50% per year payable semiannually on June 1 and December 1 of each year, beginning June 1, 2015.year. We may from time to time repurchase the 4.50% Notes due 2019 in accordance with the

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      1940 Act and the rules promulgated thereunder. As of December 31, 2017,2021, the outstanding principal balance of the 4.50% Notes due 2019 was $175.0$185.0 million.

      The indenture governing the 4.50% Notes due 2019 (the "4.50%“4.50% Notes due 2019 Indenture"Indenture”) contains certain covenants, including covenants requiring our compliance with (regardless of whether we are subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring us to provide financial information to the holders of the 4.50% Notes  due 2019 and the Trusteetrustee if we cease to be subject to the reporting requirements of the Securities Exchange Act of 1934.Act. These covenants are subject to limitations and exceptions that are described in the 4.50% Notes dueIndenture. As of December 31, 2021, we were in compliance with these covenants.

      In April 2019, Indenture.

             In November 2017, we issued $185.0$250.0 million in aggregate principal amount of 5.20% unsecured notes due May 1, 2024 (the “5.20% Notes”) at an issue price of 99.125%. Subsequently, in December 2019, we issued an additional $75.0 million in aggregate principal amount of the 4.50%5.20% Notes (the "4.50% Notes due 2022") at an issue price of 99.16%105.0%. Also, in July 2020, we issued an additional $125.0 million in aggregate principal amount of the 5.20% Notes at an issue price of 102.674%. The 4.50%5.20% Notes due 2022issued in December 2019 and July 2020 have identical terms as, and are a part of a single series with, the 5.20% Notes issued in April 2019. The aggregate net proceeds from the 5.20% Notes issuances were used to repay a portion of the borrowings outstanding under the Credit Facility. The 5.20% Notes are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 4.50% Notes due 2022;5.20% Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50%5.20% Notes due 2022 mature on December 1, 2022, and may be redeemed in whole or in part at any time at our option subject to certain make-whole provisions. The 4.50%5.20% Notes due 2022 bear interest at a rate of 4.50%5.20% per year payable semiannually on JuneMay 1 and DecemberNovember 1 of each year, beginning June 1, 2018.year. We may from time to time repurchase 4.50%the 5.20% Notes due 2022 in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2017,2021, the outstanding principal balance of the 4.50%5.20% Notes due 2022 was $185.0$450.0 million.

      The indenture governing the 4.50%5.20% Notes due 2022 (the "4.50%“5.20% Notes due 2022 Indenture"Indenture”) contains certain covenants, including covenants requiring our compliance with (regardless of whether we are subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring us to provide financial information to the holders of the 4.50%5.20% Notes due 2022 and the Trusteetrustee if we cease to be subject to the reporting requirements of the Securities Exchange Act of 1934.Act. These covenants are subject to limitations and exceptions that are described in the 4.50%5.20% Notes Indenture. As of December 31, 2021, we were in compliance with these covenants.

      In January 2021, we issued $300.0 million in aggregate principal amount of 3.00% unsecured notes due 2022July 14, 2026 (the “3.00% Notes”) at an issue price of 99.004%. In October 2021, we issued an additional $200.0 million in aggregate principal amount of the 3.00% Notes at an issue price of 101.741%. The 3.00% Notes issued in October 2021 have identical terms as, and are a part of a single series with, the 3.00% Notes issued in January 2021. The 3.00% Notes are unsecured obligations and rank pari passu with our current and future unsecured indebtedness; senior to any of our future indebtedness that expressly provides it is subordinated to the 3.00% Notes; effectively subordinated to all of our existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under our Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries, including without limitation, the indebtedness of the Funds. The 3.00% Notes may be redeemed in whole or in part at any time at our option subject to certain make whole provisions. The 3.00% Notes bear interest at a rate of 3.00% per year payable semiannually on January 14 and July 14 of each year. We may from time to time repurchase the 3.00% Notes in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2021, the outstanding principal balance of the 3.00% Notes was $500.0 million.

      The indenture governing the 3.00% Notes (the “3.00% Notes Indenture”) contains certain covenants, including covenants requiring our compliance with (regardless of whether we are subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring us to provide financial information to the holders of the 3.00% Notes and the trustee if we cease to be subject to the reporting requirements of the Exchange Act. These covenants are subject to limitations and exceptions that are described in the 3.00% Notes Indenture. As of December 31, 2021, we were in compliance with these covenants.


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             During March 2015, we completed a follow-on public equity offering of 4,370,000 shares of common stock, including the underwriters' full exercise of their option to purchase 570,000 additional shares, resulting in total net proceeds, including exercise of the underwriters' option to purchase additional shares and after deducting underwriting discounts and estimated offering expenses payable by us, of approximately $127.8 million.

             In November 2015, we commencedWe maintain a program with certain selling agents through which we can sell shares of our common stock by means of at-the-market offerings from time to time (the "ATM Program"“ATM Program”).

      During the year ended December 31, 2015,2021, we sold 140,5682,332,795 shares of our common stock at a weighted-average price of $31.98$42.71 per share and raised $4.5$99.6 million of gross proceeds under the ATM Program. Net proceeds were $4.3 million after commissions to the selling agents on shares sold and offering costs.

             During the year ended December 31, 2016, we sold 3,324,646 shares of our common stock at a weighted-average price of $34.17 per share and raised $113.6 million of gross proceeds under the ATM Program. Net proceeds were $112.0$98.4 million after commissions to the selling agents on shares sold and offering costs. As of December 31, 2016,2021, sales transactions representing 42,41336,136 shares had not settled and are not included in shares issued and outstanding on the face of the consolidated balance sheet but are included in the weighted-average shares outstanding in the consolidated statement of operations and in the shares used to calculate our net asset value per share. As of December 31, 2021, 3,380,577 shares remained available for sale under the ATM Program.

      During the year ended December 31, 2017,2020, we sold 3,944,9722,645,778 shares of our common stock at a weighted-average price of $38.72$32.10 per share and raised $152.8$84.9 million of gross proceeds under the ATM Program. Net proceeds were $150.9$83.8 million after commissions to the selling agents on shares sold and offering costs. As of December 31, 2017, 1,911,356 shares remained available for sale under the ATM Program.

      We anticipate that we will continue to fund our investment activities through existing cash and cash equivalents, cash flows generated through our ongoing operating activities, utilization of available borrowings under our Credit Facility, and a combination of future issuances of debt and equity capital. Our primary uses of funds will be investments in portfolio companies, operating expenses and cash distributions to holders of our common stock.

      We periodically invest excess cash balances into Marketablemarketable securities and idle funds investments. The primary investment objective of Marketablemarketable securities and idle funds investments is to generate incremental cash returns on excess cash balances prior to utilizing those funds for investment in our LMM, Private Loan and Middle Market and Private Loan portfolio investments. Marketable securities and idle funds investments generally consist of debt investments, independently rated debt investments, certificates of deposit with financial institutions, diversified bond funds and publicly traded debt and equity investments. We may also invest in short-term portfolio investments that are atypical of our LMM, Private Loan and Middle Market portfolio investments in that they are intended to be a short-term deployment of capital and are more liquid than investments within the other portfolios. Short-term portfolio investments consist primarily of investments in secured debt investments and independently rated debt investments.

      If our common stock trades below our net asset value per share, we will generally not be able to issue additional common stock at the market price, unless our stockholders approve such a sale and our Board of Directors makes certain determinations. We did not seek stockholder authorization to sell shares of our common stock below the then current net asset value per share of our common stock at our 2017 annual meeting2021 Annual Meeting of stockholdersStockholders, and have not sought such authorization since 2012, because our common stock price per share had been tradinghas generally traded significantly above the net asset value per share of our common stock since 2011. We would therefore need future approval from our stockholders to issue shares below the then current net asset value per share.

      In order to satisfy the Code requirements applicable to a RIC, we intend to distribute to our stockholders, after consideration and application of our ability under the Code to carry forward certain excess undistributed taxable income from one tax year into the next tax year, substantially all of our taxable income. In addition, as a BDC, we generally are required to meet a coverage ratio of total assets to total senior securities, which include borrowings and any preferred stock we may issue in the future, of at least 200% (or 150% if certain requirements are met). This requirement limits the amount that we may borrow. In January 2008, we received an exemptive order from the SEC to exclude SBA-guaranteed debt securities issued by MSMFthe Funds and any other wholly owned subsidiaries of ours


      Table of Contents

      which operate as SBICs from the asset coverage requirements of the 1940 Act as applicable to us, which, in turn, enables us to fund more investments with debt capital.

      Although we have been able to secure access to additional liquidity, including through the Credit Facility, public debt issuances, leverage available through the SBIC program and equity offerings, there is no assurance that debt or equity capital will be available to us in the future on favorable terms, or at all.

        69


        Recently Issued or Adopted Accounting Standards

               In May 2014, the FASB issued Accounting Standards Update ("ASU") 2014-09,Revenue from Contracts with Customers (Topic 606). ASU 2014-09 supersedes the revenue recognition requirements under ASC 605,Revenue Recognition, and most industry-specific guidance throughout the Industry Topics of the ASC. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. Under the new guidance, an entity is required to perform the following five steps: (1) identify the contract(s) with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when (or as) the entity satisfies a performance obligation. The new guidance will significantly enhance comparability of revenue recognition practices across entities, industries, jurisdictions and capital markets. Additionally, the guidance requires improved disclosures as to the nature, amount, timing and uncertainty of revenue that is recognized. In March 2016, the FASB issued ASU 2016-08,Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarified the implementation guidance on principal versus agent considerations. In April 2016, the FASB issued ASU 2016-10,Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, which clarified the implementation guidance regarding performance obligations and licensing arrangements. In May 2016, the FASB issued ASU No. 2016-12,Revenue from Contracts with Customers (Topic 606) — Narrow-Scope Improvements and Practical Expedients, which clarified guidance on assessing collectability, presenting sales tax, measuring noncash consideration, and certain transition matters. In December 2016, the FASB issued ASU No. 2016-20,Revenue from Contracts with Customers (Topic 606) — Technical Corrections and Improvements, which provided disclosure relief, and clarified the scope and application of the new revenue standard and related cost guidance. The new guidance will be effective for the annual reporting period beginning after December 15, 2017, including interim periods within that reporting period. Early adoption would be permitted for annual reporting periods beginning after December 15, 2016. We expect to identify similar performance obligations under ASC 606 as compared with deliverables and separate units of account previously identified. As a result, we expect timing of our revenue recognition to remain the same.

               In April 2015, the FASB issued ASU 2015-03,Interest — Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, which requires debt financing costs related to a recognized debt liability to be presented on the balance sheet as a direct deduction from the related debt liability, similar to the presentation of debt discounts. Additionally in August 2015, the FASB issued ASU 2015-15,Interest — Imputation of Interest: Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements, which provides further clarification on the same topic and states that the SEC would not object to the deferral and presentation of debt issuance costs as an asset and subsequent amortization of the deferred costs over the term of the line-of-credit arrangement, regardless of whether there are any outstanding borrowings on the line-of-credit arrangement. The Company adopted the guidance for debt arrangements that are not line-of-credit arrangements for the three months ended June 30, 2017. Comparative financial statements of prior interim and annual periods have been adjusted to apply the new method retrospectively. As a result of the adoption, the Company reclassified $7.9 million of deferred financing costs assets to a direct deduction from the related debt liability on the consolidated balance sheet as of December 31, 2016. The adoption of this guidance had no impact on net assets, the consolidated statements of operations or the consolidated statements of cash flows.


        Table of Contents

               In May 2015, the FASB issued ASU 2015-07,Fair Value Measurements — Disclosures for Certain Entities that Calculate Net Asset Value per Share. This amendment updates guidance intended to eliminate the diversity in practice surrounding how investments measured at net asset value under the practical expedient with future redemption dates have been categorized in the fair value hierarchy. Under the updated guidance, investments for which fair value is measured at net asset value per share using the practical expedient should no longer be categorized in the fair value hierarchy, while investments for which fair value is measured at net asset value per share but the practical expedient is not applied should continue to be categorized in the fair value hierarchy. The updated guidance requires retrospective adoption for all periods presented and is effective for interim and annual reporting periods beginning after December 15, 2015, with early adoption permitted. The Company adopted this standard during the three months ended March 31, 2016. There was no impact of the adoption of this new accounting standard on our consolidated financial statements as none of our investments are measured through the use of the practical expedient.

               In February 2016, the FASB issued ASU 2016-02, Leases, which requires lessees to recognize on the balance sheet a right-of-use asset, representing its right to use the underlying asset for the lease term, and a lease liability for all leases with terms greater than 12 months. The guidance also requires qualitative and quantitative disclosures designed to assess the amount, timing, and uncertainty of cash flows arising from leases. The standard requires the use of a modified retrospective transition approach, which includes a number of optional practical expedients that entities may elect to apply. The new guidance is effective for annual periods beginning after December 15, 2018, and interim periods therein. Early application is permitted. While we continue to assess the effect of adoption, we currently believe the most significant change relates to the recognition of a new right-of-use asset and lease liability on our consolidated balance sheet for our office space operating lease. We currently have one operating lease for office space and do not expect a significant change in our leasing activity between now and adoption. See further discussion of our operating lease obligation in "Note M — Commitments and Contingences" in the notes to the consolidated financial statements.

               In March 2016, the FASB issued ASU 2016-09,Compensation — Stock Compensation: Improvements to Employee Share-Based Payment Accounting, which is intended to simplify several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The guidance is effective for annual periods beginning after December 15, 2016, and interim periods therein. Early application is permitted. The Company elected to early adopt this standard during the three months ended March 31, 2016. See further discussion of the impact of the adoption of this standard in "Note B.8. — Summary of Significant Accounting Policies — Share-based Compensation" in the notes to consolidated financial statements.

               In August 2016, the FASB issued ASU 2016-15,Statement of Cash Flows (Topic 230), which is intended to reduce the existing diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The guidance is effective for annual periods beginning after December 15, 2017, and interim periods therein. Early application is permitted. The impact of the adoption of this new accounting standard on our consolidated financial statements is not expected to be material.

        From time to time, new accounting pronouncements are issued by the FASB or other standards setting bodies that are adopted by us as of the specified effective date. We believe that the impact of recently issued standards and any that are not yet effective will not have a material impact on our consolidated financial statements upon adoption. For a description of recently issued or adopted accounting standards, see Note B.13 to the consolidated financial statements included in “Item 8. Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K.

          Inflation

        Inflation has not historically had a significant effect on our results of operations in any of the reporting periods presented herein. However, our portfolio companies have experienced, specifically including over the last few quarters as a result of the COVID-19 pandemic and related supply chain and labor issues, and may incontinue to experience, the future experience, theincreasing impacts of inflation on their operating results, including periodic escalations in their costs for labor, raw materials and third-party services and required energy consumption.


        These issues and challenges related to inflation are receiving significant attention from our investment teams and the management teams of our portfolio companies as we work to manage these growing challenges. Prolonged or more severe impacts of inflation to our portfolio companies could continue to impact their operating profits and, thereby, increase their borrowing costs, and as a result negatively impact their ability to service their debt obligations and/or reduce their available cash for distributions. In addition, these factors could have a negative impact on the fair value of our investments in these portfolio companies. The combined impacts of these impacts in turn could negatively affect our results of operations.

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          Off-Balance Sheet Arrangements

        We may be a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financial needs of our portfolio companies. These instruments include commitments to extend credit and fund equity capital and involve, to varying degrees, elements of liquidity and credit risk in excess of the amount recognized in the balance sheet. At December 31, 2017,2021, we had a total of $118.7$236.3 million in outstanding commitments comprised of (i) 36sixty-seven investments with commitments to fund revolving loans that had not been fully drawn or term loans with additional commitments not yet funded and (ii) 11ten investments with equity capital commitments that had not been fully called.

          70


          Contractual Obligations

          As of December 31, 2017,2021, the future fixed commitments for cash payments in connection with our SBIC debentures, the 4.50% Notes, due 2019, the 4.50%5.20% Notes, due 2022 and the 6.125%3.00% Notes and rent obligations under our office lease for each of the next five years and thereafter are as follows:follows (dollars in thousands):

              

          2022

              

          2023

              

          2024

              

          2025

              

          2026

              

          Thereafter

              

          Total

          SBIC debentures

          $

          $

          16,000

          $

          63,800

          $

          -

          $

          $

          270,200

          $

          350,000

          Interest due on SBIC debentures

          10,133

          9,899

          8,455

          7,228

          7,228

          15,565

          58,508

          4.50% Notes due 2022

          185,000

          185,000

          Interest due on 4.50% Notes due 2022

          8,325

          8,325

          5.20% Notes due 2024

          450,000

          450,000

          Interest due on 5.20% Notes due 2024

          23,400

          23,400

          11,700

          58,500

          3.00% Notes due 2026

          500,000

          500,000

          Interest due on 3.00% Notes due 2026

          15,017

          15,000

          15,000

          15,000

          15,000

          15,000

          90,017

          Operating Lease Obligation (1)

          790

          804

          818

          832

          846

          933

          5,023

          Total

          $

          242,665

          $

          65,103

          $

          549,773

          $

          23,060

          $

          523,074

          $

          301,698

          $

          1,705,373

           
           2018 2019 2020 2021 2022 Thereafter Total 

          SBIC debentures

           $ $20,000 $55,000 $40,000 $5,000 $175,800 $295,800 

          Interest due on SBIC debentures

            10,678  10,907  9,717  7,164  6,152  18,669  63,287 

          6.125% Notes

                      90,655  90,655 

          Interest due on 6.125% Notes

            5,553  5,553  5,553  5,553  5,553  1,386  29,151 

          4.50% Notes due 2019

              175,000          175,000 

          Interest due on 4.50% Notes due 2019

            7,875  7,875          15,750 

          4.50% Notes due 2022

                    185,000    185,000 

          Interest due on 4.50% Notes due 2022

            8,533  8,325  8,325  8,325  8,325    41,833 

          Operating Lease Obligation(1)

            346  749  763  777  791  4,239  7,665 

          Total

           $32,985 $228,409 $79,358 $61,819 $210,821 $290,749 $904,141 

          (1)Operating Lease Obligation means a rent payment obligation under a lease classified as an operating lease and disclosed pursuant to ASC 842, as may be modified or supplemented.
          (1)
          The interest due on the $21.0 million of SBIC debentures drawn in 2017 does not have a final rate that has been fixed by the SBA as of December 31, 2017. In March 2018, the final rate for these SBIC debentures will be determined and, thereafter, the rate will be fixed for the ensuing 10 years. For this $21.0 million of the SBIC debentures, the table above assumes a ten year fixed rate from March 2018 to maturity based on the most recent fixed rate charged by the SBA. The rates and related future interest payments for these debentures will be adjusted once the final rate is determined.

          (2)
          Operating Lease Obligation means a rent payment obligation under a lease classified as an operating lease and disclosed pursuant to FASB ASC 840, as may be modified or supplemented.

          As of December 31, 2017,2021, we had $64.0$320.0 million in borrowings outstanding under our Credit Facility, and the Credit Facility is currently scheduled to mature in September 2021. The Credit Facility contains two, one-year extension options which could extend the maturity to September 2023, subject to lender approval. See further discussion of the Credit Facility terms in "— Liquidity and Capital Resources — Capital Resources."April 2026.

            Related Party Transactions

          As discussed further above, the External Investment Manager is treated as a wholly owned portfolio company of MSCC and is included as part of our Investment Portfolio. At December 31, 2017,2021, we had a receivable of approximately $2.9$5.6 million due from the External Investment Manager, which included approximately $2.0$3.3 million related primarily related to operating expenses incurred by us as required to support the External Investment Manager'sManager’s business and amounts due from the External Investment Manager to Main Street under a tax sharing agreement (see further discussion above in "— Critical Accounting


          TableNote B.9. and Note D in the notes to the consolidated financial statements included in “Item 8. Consolidated Financial Statements and Supplementary Data” of Contents

          Policies — Income Taxes")this Annual Report on Form 10-K) and approximately $0.9$2.3 million of dividends declared but not paid by the External Investment Manager. We have entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for the External Investment Manager’s relationship with MSC Income and its other clients. See Note A.1 and Note D in the notes to the consolidated financial statements included in “Item 8. Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K for more information regarding the External Investment Manager.

          From time to time, we may make investments in clients of the External Investment Manager in the form of debt or equity capital on terms approved by our Board of Directors. In January 2021, we entered into a Term Loan Agreement with MSC Income (the “Term Loan Agreement”). The Term Loan Agreement was unanimously approved by our Board, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act and the board of directors of MSC Income, including each director who is not an “interested person” of MSC Income or the External Investment Manager. The Term Loan Agreement initially provided for a term loan of $40.0 million to MSC Income, bearing interest at a fixed rate of 5.00% per annum, and maturing in January 2026. The Term Loan Agreement was amended in July 2021 to provide for borrowings up to an additional $35.0 million, $20.0 million of which was funded upon signing of the amendment and $15.0 million available in two additional advances during the six months following the amendment date. Borrowings under the Term Loan Agreement were expressly subordinated and junior in

          71


          right of payment to all secured indebtedness of MSC Income. In October 2021, MSC Income fully repaid all borrowings outstanding under the Term Loan Agreement and the Term Loan Agreement was terminated.

          In December 2020, the External Investment Manager entered into an Investment Management Agreement with the Private Loan Fund, pursuant to which the External Investment Manager provides investment advisory and management services to the Private Loan Fund in exchange for an asset-based fee and certain incentive fees. The Private Loan Fund is a private investment fund exempt from registration under the 1940 Act that co-invests with Main Street in Main Street’s Private Loan investment strategy. In connection with the Private Loan Fund’s initial closing in December 2020, we committed to contribute up to $10.0 million as a limited partner and will be entitled to distributions on such interest. In addition, certain of our officers and employees (and certain of their immediate family members) made capital commitments to the Private Loan Fund as limited partners and therefore have direct pecuniary interests in the Private Loan Fund. In February 2022, we increased our commitment to the Private Loan Fund from $10.0 million to $15.0 million. Our investment in the Private Loan Fund was unanimously approved by our Board, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act.

          Additionally, we provided the Private Loan Fund with a revolving line of credit pursuant to an Unsecured Revolving Promissory Note, dated February 5, 2021 and amended November 30, 2021 and December 29, 2021 (as amended, the “Private Loan Fund Loan”), in an aggregate amount equal to the amount of limited partner capital commitments to the Private Loan Fund up to $85.0 million. Borrowings under the Private Loan Fund Loan bore interest at a fixed rate of 5.00% per annum and matured on February 28, 2022. The Private Loan Fund Loan was unanimously approved by our Board of Directors, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act. In February 2022, the Private Loan Fund fully repaid all borrowings outstanding under the Private Loan Fund Loan and the Private Loan Fund Loan was terminated.

          In November 2015, our Board of Directors approved and adopted the Main Street Capital Corporation Deferred Compensation Plan (the "2015“2015 Deferred Compensation Plan"Plan”). The 2015 Deferred Compensation Plan became effective on January 1, 2016 and replaced the Deferred Compensation Plan for Non-Employee Directors previously adopted by the Board of Directors in June 2013 (the "2013“2013 Deferred Compensation Plan"Plan”). Under the 2015 Deferred Compensation Plan, non-employee directors and certain key employees may defer receipt of some or all of their cash compensation and directors'directors’ fees, subject to certain limitations. Individuals participating in the 2015 Deferred Compensation Plan receive distributions of their respective balances based on predetermined payout schedules or other events as defined by the plan and are also able to direct investments made on their behalf among investment alternatives permitted from time to time under the plan, including phantom Main Street stock units. As of December 31, 2017, $4.02021, $15.8 million of compensation and directors' feesdividend reinvestments, plus net unrealized gains and losses and investment income and minus distributions had been deferred under the 2015 Deferred Compensation Plan (including amounts previously deferred under the 2013 Deferred Compensation Plan).  Of this amount, $2.5$7.3 million washad been deferred into phantom Main Street stock units, representing 74,487 shares of our common stock. Including phantom stock units issued through dividend reinvestment, the phantom stock units outstanding as of December 31, 2017 represented 89,040162,040 shares of our common stock. Any amounts deferred under the plan represented by phantom Main Street stock units will not be issued or included as outstanding on the consolidated statements of changes in net assets until such shares are actually distributed to the participant in accordance with the plan, but the related phantom stock units are included in operating expenses and weighted-average shares outstanding with the related dollar amount of the deferral included in ourtotal expenses in Main Street’s consolidated statements of operations as earned. The dividend amounts related to additional phantom stock units are included in the statements of changes in net assets as an increase to dividends to stockholders offset by a corresponding increase to additional paid-in capital.

          Recent Developments

                 During January 2018, we made a new portfolio investment to facilitate the minority recapitalization of Brewer Crane, LLC ("Brewer"), a leading Southern California full-service crane rental service provider. We, along with a co-investor, partnered with Brewer's founder and Chief Executive Officer to facilitate the transaction, with us funding $14.2 million in a combination of first-lien, senior secured term debt and a direct equity investment. Headquartered in Lakeside, California, and founded in 1997, Brewer provides crane rental services to San Diego County and the surrounding Southern California area, offering mobile cranes, tower cranes, skilled operators, construction hoists, hauling, rigging, storage, service and repairs, and miscellaneous equipment rental.

          In February 2018,2022, we fully exited our debtdeclared a supplemental cash dividend of $0.075 per share payable in March 2022. This supplemental cash dividend is in addition to the previously announced regular monthly cash dividends that we declared for the first quarter of 2022 of $0.215 per share for each of January, February and equity investments in SoftTouch Medical Holdings, LLC ("SoftTouch"), a leading provider of home medical equipment and services, serving pediatric patients across the states of Georgia and Alabama. SoftTouch provides a broad array of medical equipment and services to chronically ill youth through its diverse product offerings, including respiratory therapy, enteral feeding, phototherapy, ventilators, amongst others. We realized a gain of approximately $5.2 million on the exit of our equity investment in SoftTouch.March 2022.

                 In February 2018, we made a new portfolio investment to facilitate the management led buyout of DMS Holdco, LLC. ("DMS"), a leading provider of omni-channel direct marketing services. We, along with a co-investor, partnered with the DMS' management team to facilitate the transaction, with us funding $27.2 million in a combination of first-lien, senior secured term debt and a direct equity investment. Headquartered in Portland, Oregon, and founded in 1982, DMS develops and executes end-to-end, omni-channel direct marketing services including strategy, creative design, direct mail production/fulfillment, and digital marketing to various end markets including the FinTech, banking, telecom and technology industries.

          During February 2018,2022, we declared regular monthly dividends of $0.190$0.215 per share for each month of April, May and June 2018.of 2022. These regular monthly dividends equal a total of $0.570$0.645 per share for the second quarter of 2018. The second quarter 20182022, representing a 4.9% increase from the regular monthly dividends represent a 2.7% increase from the dividends


          Table of Contents

          declared forpaid in the second quarter of 2017.2021. Including the supplemental dividend declared for March 2022 and the regular monthly dividends declared for the first and second

          72


          quarter of 2018,2022, we will have paid $22.530$33.540 per share in cumulative dividends since our October 2007 initial public offering.

          On February 23, 2022, our Board of Directors unanimously approved the application to the Company of the 150% minimum asset coverage ratio set forth in Section 61(a)(2) of the 1940 Act. As a result, the minimum asset coverage ratio applicable to the Company will be reduced from 200% to 150%, effective as of February 23, 2023, unless approved earlier by a vote of our stockholders, in which case the 150% minimum asset coverage ratio will be effective on the day after such approval. The Board also authorized the submission of a proposal for stockholders to accelerate the application of the 150% minimum asset coverage ratio to the Company at the 2022 Annual Meeting of Stockholders.

          Item 7A. Quantitative and Qualitative Disclosures about Market Risk

          We are subject to financial market risks, including changes in interest rates. Changesrates, and changes in interest rates may affect both our cost of fundinginterest expense on the debt outstanding under our Credit Facility and our interest income from portfolio investments. Our risk management systems and procedures are designed to identify and analyze our risk, to set appropriate policies and limits and to continually monitor these risks. Our investment income will be affected by changes in various interest rates, including LIBOR and prime rates, to the extent that any debt investments include floating interest rates. See “Risk Factors — Risks Related to our Investments —Changes relating to the LIBOR calculation process, the phase-out of LIBOR and the use of replacement rates for LIBOR may adversely affect the value of our portfolio securities.”, “Risk Factors — Risks Related to our Investments — Changes in interest rates may affect our cost of capital, net investment income and value of our investments.” and ��Risk Factors — Risks Related to Leverage — Because we borrow money, the potential for gain or loss on amounts invested in us is magnified and may increase the risk of investing in us.” for more information regarding risks associated with our debt investments and borrowings that utilize LIBOR as a reference rate.

          The majority of our debt investments are made with either fixed interest rates or floating rates that are subject to contractual minimum interest rates for the term of the investment. As of December 31, 2017,2021, approximately 72%70.9% of our debt investment portfolio (at cost) bore interest at floating rates, 96%92.8% of which were subject to contractual minimum interest rates. Our interest expense will be affected by changes in the published LIBOR rate in connection with our Credit Facility; however, the interest rates on our outstanding SBIC debentures, 4.50% Notes, due 2019, 4.50%5.20% Notes due 2022 and 6.125%3.00% Notes, which collectively comprise the majority of our outstanding debt, are fixed for the life of such debt. As of December 31, 2017,2021, we had not entered into any interest rate hedging arrangements. Due to our limited use of derivatives, we have claimed an exclusion from the definition of the term “commodity pool operator” under the Commodity Exchange Act and, therefore, are not subject to registration or regulation as a pool operator under such Act. The following table shows the approximate annualized increase or decrease in the components of net investment income due to hypothetical base rate changes in interest rates, assuming no changes in our investments and borrowings as of December 31, 2017.2021.

              

          Increase

              

          (Increase)

              

          Increase

              

          Increase

          (Decrease)

          Decrease

          (Decrease) in Net

          (Decrease) in Net

          in Interest

          in Interest

          Investment

          Investment

          Basis Point Change

              

          Income

              

          Expense

              

          Income

              

          Income per Share

          (dollars in thousands, except per share amounts)

          (150)

          $

          (330)

          $

          320

          $

          (10)

          $

          (100)

           

          (289)

           

          320

           

          31

           

          (50)

           

          (242)

           

          320

           

          78

           

          (25)

           

          (218)

           

          320

           

          102

           

          25

           

          381

           

          (800)

           

          (419)

           

          (0.01)

          50

           

          787

           

          (1,600)

           

          (813)

           

          (0.01)

          75

          1,514

          (2,400)

          (886)

          (0.01)

          100

           

          4,766

           

          (3,200)

           

          1,566

           

          0.02

          125

          8,994

          (4,000)

          4,994

          0.07

          150

          13,455

          (4,800)

          8,655

          0.12

          73


          Basis Point Change
           Increase
          (Decrease)
          in Interest
          Income
           (Increase)
          Decrease
          in Interest
          Expense
           Increase
          (Decrease) in Net
          Investment
          Income
           Increase
          (Decrease) in Net
          Investment
          Income per Share
           
           
           (dollars in thousands)
           

          (50)

           $(5,679)$320 $(5,359)$(0.09)

          (25)

            (2,870) 160  (2,710) (0.05)

          25

            2,877  (160) 2,717  0.05 

          50

            5,753  (320) 5,433  0.09 

          100

            11,565  (640) 10,925  0.19 

          200

            23,205  (1,280) 21,925  0.37 

          300

            34,844  (1,920) 32,924  0.56 

          400

            46,483  (2,560) 43,923  0.75 

          The hypothetical results assume that all LIBOR and prime rate changes would be effective on the first day of the period. However, the contractual LIBOR and prime rate reset dates would vary throughout the period, on either a monthly or quarterly basis, for both our investments and our Credit Facility. The hypothetical results would also be impacted by the changes in the amount of debt outstanding under our Credit Facility (with an increase (decrease) in the debt outstanding under the Credit Facility resulting in an (increase) decrease in the hypothetical interest expense).


          74


          Item 8. Consolidated Financial Statements and Supplementary Data


          Index to Consolidated Financial Statements

          Reports of Independent Registered Public Accounting Firm (PCAOB ID Number 248)

          82

          76

          Consolidated Balance Sheets asSheets—As of December 31, 20172021 and 2016December 31, 2020

          84

          81

          Consolidated Statements of Operations forOperations—For the Years Endedyears ended December 31, 2017, 2016,2021, 2020 and 20152019

          85

          82

          Consolidated Statements of Changes in Net Assets forAssets—For the Years Endedyears ended December 31, 2017, 2016,2021, 2020 and 20152019

          86

          83

          Consolidated Statements of Cash Flows forFlows— For the Years Endedyears ended December 31, 2017, 2016,2021, 2020 and 20152019

          87

          84

          Consolidated SchedulesSchedule of Investments as of Investments—December 31, 2017 and 20162021

          88

          86

          Consolidated Schedule of Investments—December 31, 2020

          108

          Notes to Consolidated Financial Statements

          130

          Consolidated Schedules of Investments in and Advances to Affiliates— For the years ended December 31, 2021 and 2020

          146

          175


          75


          Report of Independent Registered Public Accounting Firm

          Board of Directors and Stockholders'
          Stockholders

          Main Street Capital Corporation

          Opinion on the financial statements

          We have audited the accompanying consolidated balance sheets of Main Street Capital Corporation (a Maryland corporation) and subsidiaries (the "Company"“Company”), including the consolidated schedule of investments as of December 31, 20172021 and 2016,2020, the related consolidated statements of operations, changes in net assets, and cash flows for each of the three years in the period ended December 31, 2017,2021, and the related notes schedules and financial highlights (collectively referred to as the "financial statements"“financial statements”). and the financial highlights for each of the five years in the period ended December 31, 2021. In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 20172021 and 2016,2020, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2017,2021, and the financial highlights for each of the five years in the period ended December 31, 2017,2021, in conformity with accounting principles generally accepted in the United States of America.

          We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB"(“PCAOB”), the Company'sCompany’s internal control over financial reporting as of December 31, 2017,2021, based on criteria established in the 2013Internal Control — Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission ("COSO"(“COSO”), and our report dated February 23, 201825, 2022 expressed an unqualified opinion.

          Basis for opinion

          These financial statements are the responsibility of the Company'sCompany’s management. Our responsibility is to express an opinion on the Company'sCompany’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

          We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures includeincluded examining, on a test basis, evidence supportingregarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. Our procedures included verification by confirmation of securities as of December 31, 2017 and 2016, by correspondence with the portfolio companies and custodians, or by other appropriate auditing procedures where replies were not received. We believe that our audits provide a reasonable basis for our opinion.

          Critical audit matters

          The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to it relates.

          Fair Value Investments

          As described further in Note C to the financial statements, the Company’s investments at fair value were $3,561,831 thousand at December 31, 2021, of which $3,559,837 thousand were categorized as Level 3 investments within the fair value hierarchy. Management’s valuation techniques for Level 3 investments includes a combination of

          76


          investments measured using significant unobservable inputs and assumptions and investments measured using quoted prices by independent sources. Level 3 investment values, for which quoted prices by independent sources are not available or appropriate, are generally based on valuation techniques, such as the income and market approach, that require inputs that are significant to the overall fair value measurement and are unobservable. The significant unobservable inputs disclosed by management include, among others, weighted-average cost of capital (“WACC”) inputs and market multiples for equity investments, and risk adjusted discount rates, percentage of expected principal recovery and third-party quotes for debt investments. Changes in these assumptions could have a significant impact on the determination of fair value. As such, we identified fair value of Level 3 investments measured using significant unobservable inputs and assumptions as a critical audit matter.

          The principal considerations for our determination that fair value of Level 3 investments measured using significant unobservable inputs is a critical audit matter are the significant management judgements used in developing complex valuation techniques and inherent estimation uncertainty. Auditing these investments requires a high degree of auditor judgement and subjectivity, in addition to the use of valuation professionals with specialized skills and knowledge, to evaluate the reasonableness of unobservable inputs and assumptions.

          The primary procedures we performed to address this critical audit matter included:

          Testing the design and operating effectiveness of controls over management’s process to determine investment fair value. Specifically, we identified and tested key attributes of management’s fair value determination review. These attributes addressed the relevance, adequacy and appropriateness of the data, assumptions, valuation methods, and mathematical accuracy used to determine investment fair value as of the reporting date.
          With the assistance of internal valuation specialists to evaluate and test management’s process to develop the valuation estimates, we performed substantive audit procedures to determine mathematical accuracy and to determine that the data, valuation methods, and significant unobservable inputs and assumptions used to determine investment fair value as of the Company’s reporting date were reasonable. We tested certain key inputs/assumptions tested for a sample of investments, including the following, as applicable:
          enterprise values,
          weighted average cost of capital (“WACC”),
          discount rates,
          forecasted cash flows and long-term growth rates,
          discount for lack of marketability,
          market multiples,
          weighting between valuation techniques,
          risk adjusted discount factor,
          percentage of expected principal recovery,
          third party quotes, in conjunction with other inputs, and
          third-party appraisals.

          77


          In testing the above, we considered available third-party market information and published studies, current economic conditions and subsequent events, and other information that could be corroborated to source information.

          /s/ GRANT THORNTON LLP

          We have served as the Company'sCompany’s auditor since 2007.

          Houston, Texas

          February 23, 201825, 2022


          78



          Report of Independent Registered Public Accounting Firm

          Board of Directors and Stockholders'
          Stockholders

          Main Street Capital Corporation

          Opinion on internal control over financial reporting

          We have audited the internal control over financial reporting of Main Street Capital Corporation (a Maryland corporation) and subsidiaries (the "Company"“Company”) as of December 31, 2017,2021, based on criteria established in the 2013Internal Control — Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO)(“COSO”). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2017,2021, based on criteria established in the 2013Internal Control — Control—Integrated Framework issued by COSO.

          We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB"(“PCAOB”), the consolidated financial statements of the Company as of and for the year ended December 31, 20172021, and our report dated February 23, 2018,25, 2022 expressed an unqualified opinion on those financial statements.

          Basis for opinion

          The Company'sCompany’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management'sManagement’s Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company'sCompany’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

          We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

          Definition and limitations of internal control over financial reporting

          A company'scompany’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company'scompany’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company'scompany’s assets that could have a material effect on the financial statements.

          79


          Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

          /s/ GRANT THORNTON LLP

          Houston, Texas

          February 23, 201825, 2022


          80



          MAIN STREET CAPITAL CORPORATION

          Consolidated Balance Sheets

          (dollars in thousands, except shares and per share amounts)


           December 31,
          2017
           December 31,
          2016
           

          December 31, 

          December 31, 

              

          2021

              

          2020

          ASSETS

          ASSETS

           

           

            

           

            

          Portfolio investments at fair value:

           
           
           
           
           

          Control investments (cost: $530,034 and $439,674 as of December 31, 2017 and 2016, respectively)

           $750,706 $594,282 

          Affiliate investments (cost: $367,317 and $394,699 as of December 31, 2017 and 2016, respectively)

           338,854 375,948 

          Non-Control/Non-Affiliate investments (cost: $1,107,447 and $1,037,510 as of December 31, 2017 and 2016, respectively)

           1,081,745 1,026,676 

          Total investments (cost: $2,004,798 and $1,871,883 as of December 31, 2017 and 2016, respectively)

           2,171,305 1,996,906 

          Investments at fair value:

           

            

           

            

          Control investments (cost: $1,107,597 and $831,490 as of December 31, 2021 and December 31, 2020, respectively)

          $

          1,489,257

          $

          1,113,725

          Affiliate investments (cost: $578,539 and $416,479 as of December 31, 2021 and December 31, 2020, respectively)

           

          549,214

           

          366,301

          Non‑Control/Non‑Affiliate investments (cost: $1,573,110 and $1,268,740 as of December 31, 2021 and December 31, 2020, respectively)

           

          1,523,360

           

          1,204,840

          Total investments (cost: $3,259,246 and $2,516,709 as of December 31, 2021 and December 31, 2020, respectively)

           

          3,561,831

           

          2,684,866

          Cash and cash equivalents

           
          51,528
           
          24,480
           

           

          32,629

           

          31,919

          Interest receivable and other assets

           36,343 35,133 

           

          56,488

           

          49,761

          Receivable for securities sold

           2,382 1,990 

           

          35,125

           

          Deferred financing costs (net of accumulated amortization of $5,600 and $4,598 as of December 31, 2017 and 2016, respectively)

           3,837 4,718 

          Deferred tax asset, net

            9,125 

          Deferred financing costs (net of accumulated amortization of $9,462 and $8,477 as of December 31, 2021 and December 31, 2020, respectively)

           

          4,217

           

          2,818

          Total assets

           $2,265,395 $2,072,352 

          $

          3,690,290

          $

          2,769,364

          LIABILITIES

          LIABILITIES

           

           

           

          Credit facility

           
          $

          64,000
           
          $

          343,000
           

          $

          320,000

          $

          269,000

          SBIC debentures (par: $295,800 and $240,000 as of December 31, 2017 and 2016, respectively)

           288,483 235,686 

          4.50% Notes due 2022 (par: $185,000 and $0 as of December 31, 2017 and 2016, respectively)

           182,015  

          4.50% Notes due 2019 (par: $175,000 as of both December 31, 2017 and 2016)

           173,616 172,893 

          6.125% Notes (par: $90,655 as of both December 31, 2017 and 2016)

           89,057 88,752 

          3.00% Notes due 2026 (par: $500,000 as of December 31, 2021)

           

          497,609

           

          5.20% Notes due 2024 (par: $450,000 as of both December 31, 2021 and December 31, 2020)

           

          451,272

           

          451,817

          SBIC debentures (par: $350,000 and $309,800 as of December 31, 2021 and December 31, 2020, respectively)

           

          342,731

           

          303,972

          4.50% Notes due 2022 (par: $185,000 as of both December 31, 2021 and December 31, 2020)

           

          184,444

           

          183,836

          Accounts payable and other liabilities

           20,168 14,205 

           

          40,469

           

          20,833

          Payable for securities purchased

           40,716 2,184 

           

          5,111

           

          Interest payable

           5,273 4,103 

           

          14,926

           

          8,658

          Dividend payable

           11,146 10,048 

           

          15,159

           

          13,889

          Deferred tax liability, net

           10,553  

           

          29,723

           

          2,592

          Total liabilities

           885,027 870,871 

           

          1,901,444

           

          1,254,597

          Commitments and contingencies (Note M)

           
           
           
           
           

          Commitments and contingencies (Note K)

           

           

          NET ASSETS

           
           
           
           
           

           

           

          Common stock, $0.01 par value per share (150,000,000 shares authorized; 58,660,680 and 54,312,444 shares issued and outstanding as of December 31, 2017 and 2016, respectively)

           
          586
           
          543
           

          Additional paid-in capital

           1,310,780 1,143,883 

          Accumulated net investment income, net of cumulative dividends of $662,563 and $521,297 as of December 31, 2017 and 2016, respectively

           7,921 19,033 

          Accumulated net realized gain from investments (accumulated net realized gain from investments of $64,576 before cumulative dividends of $124,690 as of December 31, 2017 and accumulated net realized gain from investments of $48,394 before cumulative dividends of $107,281 as of December 31, 2016)

           (60,114) (58,887)

          Net unrealized appreciation, net of income taxes

           121,195 96,909 

          Common stock, $0.01 par value per share (150,000,000 shares authorized; 70,700,885 and 67,674,853 shares issued and outstanding as of December 31, 2021 and December 31, 2020, respectively)

           

          707

           

          677

          Additional paid‑in capital

           

          1,736,346

           

          1,615,940

          Total undistributed (overdistributed) earnings

           

          51,793

           

          (101,850)

          Total net assets

           1,380,368 1,201,481 

           

          1,788,846

           

          1,514,767

          Total liabilities and net assets

           $2,265,395 $2,072,352 

          $

          3,690,290

          $

          2,769,364

          NET ASSET VALUE PER SHARE

           $23.53 $22.10 

          $

          25.29

          $

          22.35

          The accompanying notes are an integral part of these consolidated financial statements


          81



          MAIN STREET CAPITAL CORPORATION

          Consolidated Statements of Operations

          (dollars in thousands, except shares and per share amounts)


           Twelve Months Ended December 31, 

           2017 2016 2015 

              

          Twelve Months Ended December 31, 

          2021

              

          2020

              

          2019

          INVESTMENT INCOME:

                 

           

            

           

            

           

            

          Interest, fee and dividend income:

                 

           

            

           

            

           

            

          Control investments

           $62,762 $52,221 $49,832 

          $

          122,277

          $

          81,155

          $

          92,414

          Affiliate investments

           37,509 37,702 27,200 

           

          51,278

           

          32,435

           

          34,732

          Non-Control/Non-Affiliate investments

           105,470 88,242 86,571 

          Interest, fee and dividend income

           205,741 178,165 163,603 

          Interest, fee and dividend income from marketable securities and idle funds investments

            174 986 

          Non‑Control/Non‑Affiliate investments

           

          115,492

           

          109,024

           

          116,227

          Total investment income

           205,741 178,339 164,589 

           

          289,047

           

          222,614

           

          243,373

          EXPENSES:

                 

           

           

           

            

          Interest

           (36,479) (33,630) (32,115)

           

          (58,836)

           

          (49,587)

           

          (50,258)

          Compensation

           (18,560) (16,408) (14,852)

           

          (34,442)

           

          (18,981)

           

          (19,792)

          General and administrative

           (11,674) (9,284) (8,621)

           

          (12,494)

           

          (12,702)

           

          (12,546)

          Share-based compensation

           (10,027) (8,304) (6,262)

          Share‑based compensation

           

          (10,887)

           

          (10,828)

           

          (10,083)

          Expenses allocated to the External Investment Manager

           6,370 5,089 4,335 

           

          10,277

           

          7,429

           

          6,672

          Total expenses

           (70,370) (62,537) (57,515)

           

          (106,382)

           

          (84,669)

           

          (86,007)

          NET INVESTMENT INCOME

           135,371 115,802 107,074 

           

          182,665

           

          137,945

           

          157,366

          NET REALIZED GAIN (LOSS):

           
           
           
           
           
           
           

           

           

           

            

          Control investments

           259 32,220 (582)

           

          6,494

           

          (59,594)

           

          4,797

          Affiliate investments

           8,044 25,167 5,827 

           

          17,181

           

          2,203

           

          (565)

          Non-Control/Non-Affiliate investments

           7,879 (26,317) (25,147)

          Marketable securities and idle funds investments

            (1,681) (1,414)

          Non‑Control/Non‑Affiliate investments

           

          21,661

           

          (58,556)

           

          (19,344)

          Realized loss on extinguishment of debt

           

           

          (534)

           

          (5,689)

          Total net realized gain (loss)

           

          45,336

           

          (116,481)

           

          (20,801)

          NET UNREALIZED APPRECIATION (DEPRECIATION):

           

           

           

            

          Control investments

           

          99,420

           

          37,924

           

          (980)

          Affiliate investments

           

          21,989

           

          (29,038)

           

          990

          Non‑Control/Non‑Affiliate investments

           

          14,215

           

          (14,968)

           

          (10,214)

          SBIC debentures

           (5,217)   

           

           

          460

           

          4,450

          Total net realized gain (loss)

           10,965 29,389 (21,316)

          NET CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION):

                 

          Portfolio investments

           42,545 (8,305) 11,048 

          Marketable securities and idle funds investments

            1,729 (177)

          SBIC debentures

           6,212 (943) (879)

          Total net change in unrealized appreciation (depreciation)

           48,757 (7,519) 9,992 

          Total net unrealized appreciation (depreciation)

           

          135,624

           

          (5,622)

           

          (5,754)

          INCOME TAXES:

                 

           

           

           

            

          Federal and state income, excise and other taxes

           (5,206) (2,089) (2,964)

           

          (5,732)

           

          (590)

           

          (3,546)

          Deferred taxes

           (19,265) 3,316 11,651 

           

          (27,131)

           

          14,131

           

          2,304

          Income tax benefit (provision)

           (24,471) 1,227 8,687 

           

          (32,863)

           

          13,541

           

          (1,242)

          NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS

           $170,622 $138,899 $104,437 

          NET INVESTMENT INCOME PER SHARE — BASIC AND DILUTED

           $2.39 $2.23 $2.18 

          NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS PER SHARE — BASIC AND DILUTED

           $3.01 $2.67 $2.13 

          DIVIDENDS PAID PER SHARE:

                 

          Regular monthly dividends

           $2.235 $2.175 $2.100 

          Supplemental dividends

           0.550 0.550 $0.550 

          Total dividends

           $2.785 $2.725 $2.650 

          WEIGHTED AVERAGE SHARES OUTSTANDING — BASIC AND DILUTED

           56,691,913 52,025,002 49,071,492 

          NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS

          $

          330,762

          $

          29,383

          $

          129,569

          NET INVESTMENT INCOME PER SHARE—BASIC AND DILUTED

          $

          2.65

          $

          2.10

          $

          2.50

          NET INCREASE (DECREASE) IN NET ASSETS RESULTING FROM OPERATIONS PER
          SHARE—BASIC AND DILUTED

          $

          4.80

          $

          0.45

          $

          2.06

          WEIGHTED AVERAGE SHARES
          OUTSTANDING—BASIC AND DILUTED

           

          68,960,923

           

          65,705,963

           

          62,960,591

          The accompanying notes are an integral part of these consolidated financial statements


          82



          MAIN STREET CAPITAL CORPORATION

          Consolidated Statements of Changes in Net Assets

          (dollars in thousands, except shares)


           Common Stock  
            
           Accumulated
          Net Realized
          Gain From
          Investments,
          Net of Dividends
           Net Unrealized
          Appreciation from
          Investments,
          Net of Income
          Taxes
            
           

            
           Accumulated
          Net Investment
          Income, Net
          of Dividends
            
           

           Number of
          Shares
           Par
          Value
           Additional
          Paid-In
          Capital
           Net Unrealized
          Appreciation from
          Investments,
          Net of Income
          Taxes
           

          Balances at December 31, 2014

           45,079,150 $451 $853,606 $23,665 $(20,456)$82,716 

          Public offering of common stock, net of offering costs

           4,510,568 46 132,003    

          Share-based compensation

             6,262    6,262 

          Purchase of vested stock for employee payroll tax withholding

           (54,840) (1) (1,739)    (1,740)

          Dividend reinvestment

           636,079 6 19,348    19,354 

          Amortization of directors' deferred compensation

             423    423 

          Issuance of restricted stock, net of forfeited shares

           242,787 2 (2)     

          Other

             1,566    1,566 

          Dividends to stockholders

              (123,558) (7,881)  (131,439)

          Net increase (decrease) resulting from operations

              107,074 (21,316) 18,679 104,437 

          Balances at December 31, 2015

           50,413,744 $504 $1,011,467 $7,181 $(49,653)$101,395 $1,070,894 

          Common Stock

          Additional

          Total

          Number of

          Par

          PaidIn

          Undistributed

          Total Net

          Balances at December 31, 2015

           50,413,744 $504 $1,011,467 $7,181 $(49,653)$101,395 $1,070,894 

              

          Shares

              

          Value

              

          Capital

              

          Earnings

              

          Asset Value

          Balances at December 31, 2018

           

          61,264,861

          $

          613

          $

          1,409,945

          $

          65,491

          $

          1,476,049

          Public offering of common stock, net of offering costs

           3,324,646 33 112,006    112,039 

           

          2,259,729

           

          23

           

          89,246

           

           

          89,269

          Share-based compensation

             8,304    8,304 

          Share‑based compensation

           

           

           

          10,083

           

           

          10,083

          Purchase of vested stock for employee payroll tax withholding

           (80,750) (1) (2,592)    (2,593)

           

          (103,730)

           

          (1)

           

          (3,941)

           

           

          (3,942)

          Dividend reinvestment

           434,631 4 14,073    14,077 

           

          441,927

           

          4

           

          18,081

           

           

          18,085

          Amortization of directors' deferred compensation

             628    628 

          Amortization of directors’ deferred compensation

           

           

           

          866

           

           

          866

          Issuance of restricted stock, net of forfeited shares

           262,586 3 (3)     

           

          390,150

           

          4

           

          (4)

           

           

          Dividends to stockholders

              (103,950) (38,623)  (142,573)

           

           

           

          401

           

          (183,990)

           

          (183,589)

          Cumulative-effect to retained earnings for excess tax benefit

                1,806 1,806 

          Net increase (decrease) resulting from operations

              115,802 29,389 (6,292) 138,899 

          Balances at December 31, 2016

           54,354,857 $543 $1,143,883 $19,033 $(58,887)$96,909 $1,201,481 

          Balances at December 31, 2016

           54,354,857 $543 $1,143,883 $19,033 $(58,887)$96,909 $1,201,481 

          Reclassification for certain permanent book-to-tax differences

          (12,242)

          12,242

          Net increase resulting from operations

           

           

           

           

          129,569

           

          129,569

          Balances at December 31, 2019

           

          64,252,937

          $

          643

          $

          1,512,435

          $

          23,312

          $

          1,536,390

          Public offering of common stock, net of offering costs

           3,947,165 40 150,946    150,986 

           

          2,662,777

           

          27

           

          84,354

           

           

          84,381

          Share-based compensation

             10,027    10,027 

          Share‑based compensation

           

           

           

          10,828

           

           

          10,828

          Purchase of vested stock for employee payroll tax withholding

           (113,371) (1) (4,350)    (4,351)

           

          (89,447)

           

          (1)

           

          (1,890)

           

           

          (1,891)

          Investment through issuance of unregistered shares

           11,464  442    442 

          Dividend reinvestment

           234,513 2 9,154    9,156 

           

          517,796

           

          4

           

          16,230

           

           

          16,234

          Amortization of directors' deferred compensation

             680    680 

          Amortization of directors’ deferred compensation

           

           

           

          853

           

           

          853

          Issuance of restricted stock, net of forfeited shares

           226,052 2 (2)     

           

          417,969

           

          4

           

          (4)

           

           

          Dividends to stockholders

              (141,266) (17,409)  (158,675)

           

           

           

          385

           

          (161,796)

           

          (161,411)

          Net increase (decrease) resulting from operations

              130,154 16,182 24,286 170,622 

          Balances at December 31, 2017

           58,660,680 $586 $1,310,780 $7,921 $(60,114)$121,195 $1,380,368 

          Reclassification for certain permanent book-to-tax differences

           

           

          (7,251)

           

          7,251

          Net increase resulting from operations

           

           

           

           

          29,383

           

          29,383

          Balances at December 31, 2020

           

          67,762,032

          $

          677

          $

          1,615,940

          $

          (101,850)

          $

          1,514,767

          Public offering of common stock, net of offering costs

           

          2,345,554

           

          24

           

          98,865

           

           

          98,889

          Share‑based compensation

           

           

           

          10,887

           

           

          10,887

          Purchase of vested stock for employee payroll tax withholding

           

          (134,238)

           

          (1)

           

          (5,302)

           

           

          (5,303)

          Dividend reinvestment

           

          404,384

           

          4

           

          16,279

           

           

          16,283

          Amortization of directors’ deferred compensation

           

           

           

          652

           

           

          652

          Issuance of restricted stock, net of forfeited shares

           

          359,289

           

          3

           

          (3)

           

           

          Dividends to stockholders

           

           

           

          406

           

          (178,497)

           

          (178,091)

          Reclassification for certain permanent book-to-tax differences

           

           

           

          (1,378)

           

          1,378

           

          Net increase resulting from operations

           

           

           

           

          330,762

           

          330,762

          Balances at December 31, 2021

           

          70,737,021

          $

          707

          $

          1,736,346

          $

          51,793

          $

          1,788,846

          The accompanying notes are an integral part of these consolidated financial statements


          83



          MAIN STREET CAPITAL CORPORATION

          Consolidated Statements of Cash Flows

          (dollars in thousands)


           Twelve Months Ended December 31, 

           2017 2016 2015 

          Year Ended

              

          December 31, 

          2021

             

          2020

             

          2019

          CASH FLOWS FROM OPERATING ACTIVITIES

                 

          Net increase in net assets resulting from operations

           $170,622 $138,899 $104,437 

          $

          330,762

          $

          29,383

          $

          129,569

          Adjustments to reconcile net increase in net assets resulting from operations to net cash provided by (used in) operating activities:

                 

          Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:

          Investments in portfolio companies

           (876,744) (641,197) (838,441)

          (1,763,755)

          (669,007)

          (664,062)

          Proceeds from sales and repayments of debt investments in portfolio companies

           737,297 409,542 570,454 

          920,828

          443,573

          439,363

          Proceeds from sales and return of capital of equity investments in portfolio companies

           82,128 76,731 34,780 

          133,644

          34,439

          38,536

          Investments in marketable securities and idle funds investments

            (523) (5,767)

          Proceeds from sales and repayments of marketable securities and idle funds investments

            4,316 9,529 

          Net change in net unrealized (appreciation) depreciation

           (48,757) 7,519 (9,992)

          Net unrealized (appreciation) depreciation

          (135,624)

          5,622

          5,754

          Net realized (gain) loss

           (10,965) (29,389) 21,316 

          (45,336)

          116,481

          20,801

          Accretion of unearned income

           (17,008) (10,211) (8,940)

          (15,619)

          (11,756)

          (12,070)

          Payment-in-kind interest

           (4,884) (6,497) (3,624)

          (7,573)

          (6,225)

          (5,018)

          Cumulative dividends

           (3,226) (2,200) (1,607)

          (1,739)

          (1,791)

          (2,382)

          Share-based compensation expense

           10,027 8,304 6,262 

          10,887

          10,828

          10,083

          Amortization of deferred financing costs

           2,784 2,582 2,553 

          2,998

          2,513

          3,717

          Deferred tax (benefit) provision

           19,265 (3,316) (11,651)

          27,131

          (14,131)

          (2,304)

          Changes in other assets and liabilities:

                 

          Interest receivable and other assets

           2,080 (2,564) (3,220)

          (5,504)

          4,599

          (6,680)

          Interest payable

           1,170 144 (889)

          6,268

          1,366

          1,251

          Accounts payable and other liabilities

           6,643 2,541 1,639 

          20,289

          (2,846)

          7,436

          Deferred fees and other

           2,470 2,589 1,769 

          6,970

          2,868

          2,172

          Net cash used in operating activities

          (515,373)

          (54,084)

          (33,834)

          Net cash provided by (used in) operating activities

           72,902 (42,730) (131,392)

          CASH FLOWS FROM FINANCING ACTIVITIES

           
           
           
           
           
           
           

          Proceeds from public offering of common stock, net of offering costs

           150,986 112,039 132,049 

          98,889

          84,381

          89,269

          Proceeds from public offering of 4.50% Notes due 2022

           185,000   

          Proceeds from public offering of 5.20% Notes due 2024

          -

          125,000

          325,000

          Proceeds from public offering of 3.00% Notes due 2026

          500,000

          -

          -

          Dividends paid

           (148,421) (127,522) (110,673)

          (160,537)

          (144,462)

          (164,278)

          Proceeds from issuance of SBIC debentures

           81,000 15,000  

          80,200

          40,000

          -

          Repayments of SBIC debentures

           (25,200)   

          (40,000)

          (42,000)

          (34,000)

          Redemption of 4.50% Notes due 2019

          -

          -

          (175,000)

          Proceeds from credit facility

           448,000 390,000 534,000 

          1,100,000

          399,000

          639,000

          Repayments on credit facility

           (727,000) (338,000) (461,000)

          Payment of deferred loan costs and SBIC debenture fees

           (5,868) (1,962) (1,260)

          Purchases of vested stock for employee payroll tax withholding

           (4,351) (2,593) (1,740)

          Other

            (83) (85)

          Net cash provided by (used in) financing activities

           (45,854) 46,879 91,291 

          Net increase in cash and cash equivalents

           27,048 4,149 (40,101)

          CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD

           24,480 20,331 60,432 

          CASH AND CASH EQUIVALENTS AT END OF PERIOD

           $51,528 $24,480 $20,331 

          Supplemental cash flow disclosures:

                 

          Interest paid

           $32,411 $30,756 $30,450 

          Taxes paid

           $2,398 $1,495 $2,687 

          Non-cash financing activities:

                 

          Shares issued pursuant to the DRIP

           $9,156 $14,077 $19,354 

          84


          Year Ended

              

          December 31, 

          2021

             

          2020

             

          2019

          Repayments on credit facility

          (1,049,000)

          (430,000)

          (640,000)

          Debt issuance premiums (costs), net

          (8,166)

          729

          (1,150)

          Purchases of vested stock for employee payroll tax withholding

          (5,303)

          (1,891)

          (3,942)

          Net cash provided by financing activities

          516,083

          30,757

          34,899

          Net increase (decrease) in cash and cash equivalents

          710

          (23,327)

          1,065

          CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD

          31,919

          55,246

          54,181

          CASH AND CASH EQUIVALENTS AT END OF PERIOD

          $

          32,629

          $

          31,919

          $

          55,246

          Supplemental cash flow disclosures:

          Interest paid

          $

          50,729

          $

          45,582

          $

          45,167

          Taxes paid

          $

          2,233

          $

          3,136

          $

          2,300

          Operating non-cash activities:

          Right-of-use assets obtained in exchange for operating lease liabilities

          $

          -

          $

          -

          $

          5,240

          Non-cash financing activities:

          Value of shares issued pursuant to the DRIP

          $

          16,283

          $

          16,234

          $

          18,085

          The accompanying notes are an integral part of these consolidated financial statements


          85


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Control Investments (5)

          Analytical Systems Keco Holdings, LLC

          Manufacturer of Liquid and Gas Analyzers

          Secured Debt

          (9)

          8/16/2019

          12.00% (L+10.00%, Floor 2.00%)

          8/16/2024

          $

          4,945

          $

          4,736

          $

          4,736

          Preferred Member Units

          8/16/2019

          3,200

          3,200

          -

          Preferred Member Units

          5/20/2021

          2,427

          2,427

          4,894

          Warrants

          (27)

          8/16/2019

          420

          8/16/2029

          316

          -

          10,679

          9,630

          ASC Interests, LLC

          Recreational and Educational Shooting Facility

          Secured Debt

          12/31/2019

          13.00%

          7/31/2022

          200

          200

          200

          Secured Debt

          8/1/2013

          13.00%

          7/31/2022

          1,650

          1,636

          1,636

          Member Units

          8/1/2013

          1,500

          1,500

          720

          3,336

          2,556

          ATS Workholding, LLC

          (10)

          Manufacturer of Machine Cutting Tools and Accessories

          Secured Debt

          (14)

          11/16/2017

          5.00%

          8/16/2023

          4,794

          4,635

          3,005

          Preferred Member Units

          11/16/2017

          3,725,862

          3,726

          -

          8,361

          3,005

          Barfly Ventures, LLC

          (10)

          Casual Restaurant Group

          Secured Debt

          10/15/2020

          7.00%

          10/31/2024

          711

          711

          711

          Member Units

          10/26/2020

          37

          1,584

          1,930

          2,295

          2,641

          Bolder Panther Group, LLC

          Consumer Goods and Fuel Retailer

          Secured Debt

          (9)

          12/31/2020

          10.50% (L+9.00%, Floor 1.50%)

          12/31/2025

          39,000

          38,687

          39,000

          Class A Preferred Member Units

          (8)

          12/31/2020

          14.00%

          10,194

          10,194

          Class B Preferred Member Units

          (8)

          12/31/2020

          140,000

          8.00%

          14,000

          23,170

          62,881

          72,364

          Brewer Crane Holdings, LLC

          Provider of Crane Rental and Operating Services

          Secured Debt

          (9)

          1/9/2018

          11.00% (L+10.00%, Floor 1.00%)

          1/9/2023

          8,060

          8,037

          8,037

          Preferred Member Units

          (8)

          1/9/2018

          2,950

          4,280

          7,710

          12,317

          15,747

          Bridge Capital Solutions Corporation

          Financial Services and Cash Flow Solutions Provider

          Secured Debt

          7/25/2016

          13.00%

          12/11/2024

          8,813

          8,813

          8,813

          Warrants

          (27)

          7/25/2016

          82

          7/25/2026

          2,132

          4,060

          Secured Debt

          (30)

          7/25/2016

          13.00%

          12/11/2024

          1,000

          1,000

          1,000

          Preferred Member Units

          (8) (30)

          7/25/2016

          17,742

          1,000

          1,000

          12,945

          14,873

          Café Brazil, LLC

          Casual Restaurant Group

          Member Units

          (8)

          6/9/2006

          1,233

          1,742

          2,570

          California Splendor Holdings LLC

          Processor of Frozen Fruits

          Secured Debt

          (9)

          3/30/2018

          11.00% (L+10.00%, Floor 1.00%)

          3/30/2023

          28,000

          27,915

          27,915

          Preferred Member Units

          (8) (19)

          7/31/2019

          6,725

          15.00% PIK

          9,510

          9,510

          Preferred Member Units

          (8)

          3/30/2018

          6,157

          10,775

          13,275

          48,200

          50,700

          86


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          CBT Nuggets, LLC

          Produces and Sells IT Training Certification Videos

          Member Units

          (8)

          6/1/2006

          416

          1,300

          50,620

          Centre Technologies Holdings, LLC

          Provider of IT Hardware Services and Software Solutions

          Secured Debt

          (9)

          1/4/2019

          12.00% (L+10.00%, Floor 2.00%)

          1/4/2024

          9,416

          9,370

          8,864

          Preferred Member Units

          1/4/2019

          12,696

          5,840

          5,840

          15,210

          14,704

          Chamberlin Holding LLC

          Roofing and Waterproofing Specialty Contractor

          Secured Debt

          (9)

          2/26/2018

          9.00% (L+8.00%, Floor 1.00%)

          2/26/2023

          17,817

          17,738

          17,817

          Member Units

          (8)

          2/26/2018

          4,347

          11,440

          24,140

          Member Units

          (8) (30)

          11/2/2018

          1,047,146

          1,322

          1,540

          30,500

          43,497

          Charps, LLC

          Pipeline Maintenance and Construction

          Unsecured Debt

          8/26/2020

          10.00%

          1/31/2024

          5,694

          4,599

          5,694

          Preferred Member Units

          (8)

          2/3/2017

          1,829

          1,963

          13,990

          6,562

          19,684

          Clad-Rex Steel, LLC

          Specialty Manufacturer of Vinyl-Clad Metal

          Secured Debt

          (9)

          12/20/2016

          10.50% (L+9.50%, Floor 1.00%)

          1/15/2024

          10,480

          10,401

          10,401

          Member Units

          (8)

          12/20/2016

          717

          7,280

          10,250

          Secured Debt

          12/20/2016

          10.00%

          12/20/2036

          1,081

          1,071

          1,071

          Member Units

          (30)

          12/20/2016

          800

          210

          530

          18,962

          22,252

          CMS Minerals Investments

          Oil & Gas Exploration & Production

          Member Units

          (8) (30)

          4/1/2016

          100

          1,838

          1,974

          Cody Pools, Inc.

          Designer of Residential and Commercial Pools

          Secured Debt

          (9)

          3/6/2020

          12.25% (L+10.50%, Floor 1.75%)

          12/17/2026

          42,497

          42,117

          42,484

          Preferred Member Units

          (8) (30)

          3/6/2020

          587

          8,317

          47,640

          50,434

          90,124

          Colonial Electric Company LLC

          Provider of Electrical Contracting Services

          Secured Debt

          3/31/2021

          12.00%

          3/31/2026

          24,570

          24,351

          24,351

          Preferred Member Units

          (8)

          3/31/2021

          17,280

          7,680

          9,130

          32,031

          33,481

          CompareNetworks Topco, LLC

          Internet Publishing and Web Search Portals

          Secured Debt

          (9)

          1/29/2019

          10.00% (L+9.00%, Floor 1.00%)

          1/29/2024

          6,477

          6,452

          6,477

          Preferred Member Units

          (8)

          1/29/2019

          1,975

          1,975

          12,000

          8,427

          18,477

          Copper Trail Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (CTMH, LP)

          (31)

          7/17/2017

          38.8%

          710

          710

          Datacom, LLC

          Technology and Telecommunications Provider

          Secured Debt

          3/31/2021

          5.00%

          12/31/2025

          8,892

          8,296

          7,668

          Preferred Member Units

          3/31/2021

          9,000

          2,610

          2,610

          87


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          10,906

          10,278

          Digital Products Holdings LLC

          Designer and Distributor of Consumer Electronics

          Secured Debt

          (9)

          4/1/2018

          11.00% (L+10.00%, Floor 1.00%)

          4/1/2023

          16,853

          16,801

          16,801

          Preferred Member Units

          (8)

          4/1/2018

          3,857

          9,501

          9,835

          26,302

          26,636

          Direct Marketing Solutions, Inc.

          Provider of Omni-Channel Direct Marketing Services

          Secured Debt

          (9)

          2/13/2018

          12.00% (L+11.00%, Floor 1.00%)

          2/13/2024

          24,070

          23,911

          24,048

          Preferred Stock

          (8)

          2/13/2018

          8,400

          8,400

          18,350

          32,311

          42,398

          Gamber-Johnson Holdings, LLC

          Manufacturer of Ruggedized Computer Mounting Systems

          Secured Debt

          (9)

          6/24/2016

          9.50% (L+7.50%, Floor 2.00%)

          1/1/2025

          21,598

          21,535

          21,598

          Member Units

          (8)

          6/24/2016

          9,042

          17,692

          49,700

          39,227

          71,298

          Garreco, LLC

          Manufacturer and Supplier of Dental Products

          Secured Debt

          (9)

          7/15/2013

          9.00% (L+8.00%, Floor 1.00%, Ceiling 1.50%)

          7/31/2022

          4,196

          4,196

          4,196

          Member Units

          (8)

          7/15/2013

          1,200

          1,200

          2,270

          5,396

          6,466

          GRT Rubber Technologies LLC

          Manufacturer of Engineered Rubber Products

          Secured Debt

          12/19/2014

          8.10% (L+8.00%)

          10/29/2026

          38,885

          38,672

          38,885

          Member Units

          (8)

          12/19/2014

          5,879

          13,065

          46,190

          51,737

          85,075

          Gulf Manufacturing, LLC

          Manufacturer of Specialty Fabricated Industrial Piping Products

          Member Units

          (8)

          8/31/2007

          438

          2,980

          5,640

          Gulf Publishing Holdings, LLC

          Energy Industry Focused Media and Publishing

          Secured Debt

          (9) (17) (19)

          9/29/2017

          10.50% (5.25% Cash, 5.25% PIK) (L+9.50%, Floor 1.00%)

          9/30/2020

          257

          257

          257

          Secured Debt

          (17) (19)

          4/29/2016

          12.50% (6.25% Cash, 6.25% PIK)

          4/29/2021

          13,565

          13,565

          9,717

          Member Units

          4/29/2016

          3,681

          3,681

          -

          17,503

          9,974

          Harris Preston Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (2717 MH, L.P.)

          (31)

          10/1/2017

          49.3%

          2,703

          3,971

          Harrison Hydra-Gen, Ltd.

          Manufacturer of Hydraulic Generators

          Common Stock

          6/4/2010

          107,456

          718

          3,530

          Jensen Jewelers of Idaho, LLC

          Retail Jewelry Store

          Secured Debt

          (9)

          11/14/2006

          10.00% (Prime+6.75%, Floor 2.00%)

          11/14/2023

          2,550

          2,536

          2,550

          Member Units

          (8)

          11/14/2006

          627

          811

          12,420

          3,347

          14,970

          Johnson Downie Opco, LLC

          Executive Search Services

          Secured Debt

          (9)

          12/10/2021

          13.00% (L+11.50%, Floor 1.50%)

          12/10/2026

          11,475

          11,344

          11,344

          Preferred Equity

          12/10/2021

          3,150

          3,150

          3,150

          14,494

          14,494

          88


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          KBK Industries, LLC

          Manufacturer of Specialty Oilfield and Industrial Products

          Member Units

          (8)

          1/23/2006

          325

          783

          13,620

          Kickhaefer Manufacturing Company, LLC

          Precision Metal Parts Manufacturing

          Secured Debt

          10/31/2018

          11.50%

          10/31/2023

          20,415

          20,324

          20,324

          Member Units

          10/31/2018

          581

          12,240

          12,310

          Secured Debt

          10/31/2018

          9.00%

          10/31/2048

          3,915

          3,876

          3,876

          Member Units

          (8) (30)

          10/31/2018

          800

          992

          2,460

          37,432

          38,970

          Market Force Information, LLC

          Provider of Customer Experience Management Services

          Secured Debt

          (9)

          7/28/2017

          12.00% (L+11.00%, Floor 1.00%)

          7/28/2023

          3,400

          3,400

          3,400

          Secured Debt

          (14) (19)

          7/28/2017

          12.00% PIK

          7/28/2023

          26,079

          25,952

          8,936

          Member Units

          7/28/2017

          743,921

          16,642

          -

          45,994

          12,336

          MH Corbin Holding LLC

          Manufacturer and Distributor of Traffic Safety Products

          Secured Debt

          8/31/2015

          13.00%

          3/31/2022

          8,250

          8,241

          5,934

          Preferred Member Units

          3/15/2019

          66,000

          4,400

          -

          Preferred Member Units

          9/1/2015

          4,000

          6,000

          -

          18,641

          5,934

          MS Private Loan Fund I, LP

          (12) (13)

          Investment Partnership

          Unsecured Debt

          2/11/2021

          5.00%

          2/28/2022

          63,151

          63,151

          63,151

          LP Interests

          (31)

          1/26/2021

          12.1%

          2,500

          2,581

          65,651

          65,732

          MSC Adviser I, LLC

          (16)

          Third Party Investment Advisory Services

          Member Units

          (8)

          11/22/2013

          29,500

          140,400

          Mystic Logistics Holdings, LLC

          Logistics and Distribution Services Provider for Large Volume Mailers

          Secured Debt

          8/18/2014

          12.00%

          1/17/2022

          6,378

          6,377

          6,378

          Common Stock

          (8)

          8/18/2014

          5,873

          2,720

          8,840

          9,097

          15,218

          NAPCO Precast, LLC

          Precast Concrete Manufacturing

          Member Units

          (8)

          1/31/2008

          2,955

          2,975

          13,560

          Nebraska Vet AcquireCo, LLC

          Mixed-Animal Veterinary and Animal Health Product Provider

          Secured Debt

          12/31/2020

          12.00%

          12/31/2025

          10,500

          10,412

          10,412

          Secured Debt

          12/31/2020

          12.00%

          12/31/2025

          4,868

          4,829

          4,829

          Preferred Member Units

          12/31/2020

          6,987

          6,987

          7,700

          22,228

          22,941

          NexRev LLC

          Provider of Energy Efficiency Products & Services

          Secured Debt

          2/28/2018

          11.00%

          2/28/2023

          16,217

          16,173

          14,045

          Preferred Member Units

          (8)

          2/28/2018

          86,400,000

          6,880

          2,690

          23,053

          16,735

          NRP Jones, LLC

          Manufacturer of Hoses, Fittings and Assemblies

          Secured Debt

          12/21/2017

          12.00%

          3/20/2023

          2,080

          2,080

          2,080

          Member Units

          (8)

          12/22/2011

          65,962

          3,717

          6,440

          5,797

          8,520

          NuStep, LLC

          Designer, Manufacturer and

          89


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          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Distributor of Fitness Equipment

          Secured Debt

          (9)

          1/31/2017

          7.50% (L+6.50%, Floor 1.00%)

          1/31/2025

          1,720

          1,720

          1,720

          Secured Debt

          1/31/2017

          11.00%

          1/31/2025

          17,240

          17,236

          17,240

          Preferred Member Units

          1/31/2017

          406

          10,200

          13,500

          29,156

          32,460

          OMi Topco, LLC

          Manufacturer of Overhead Cranes

          Secured Debt

          8/31/2021

          12.00%

          8/31/2026

          18,000

          17,831

          18,000

          Preferred Member Units

          (8)

          4/1/2008

          900

          1,080

          20,210

          18,911

          38,210

          Orttech Holdings, LLC

          Distributor of Industrial Clutches, Brakes and Other Components

          Secured Debt

          (9)

          7/30/2021

          12.00% (L+11.00%, Floor 1.00%)

          7/31/2026

          24,375

          24,151

          24,151

          Preferred Stock

          (8) (30)

          7/30/2021

          10,000

          10,000

          10,000

          34,151

          34,151

          Pearl Meyer Topco LLC

          Provider of Executive Compensation Consulting Services

          Secured Debt

          4/27/2020

          12.00%

          4/27/2025

          32,674

          32,438

          32,674

          Member Units

          (8)

          4/27/2020

          13,800

          13,000

          26,970

          45,438

          59,644

          PPL RVs, Inc.

          Recreational Vehicle Dealer

          Secured Debt

          (9)

          10/31/2019

          7.50% (L+7.00%, Floor 0.50%)

          11/15/2022

          750

          726

          726

          Secured Debt

          (9)

          11/15/2016

          7.50% (L+7.00%, Floor 0.50%)

          11/15/2022

          11,655

          11,655

          11,655

          Common Stock

          (8)

          6/10/2010

          2,000

          2,150

          14,360

          14,531

          26,741

          Principle Environmental, LLC

          Noise Abatement Service Provider

          Secured Debt

          2/1/2011

          13.00%

          11/15/2026

          1,473

          1,465

          1,465

          Secured Debt

          7/1/2011

          13.00%

          11/15/2026

          5,924

          5,808

          5,808

          Preferred Member Units

          2/1/2011

          21,806

          5,709

          11,160

          Common Stock

          1/27/2021

          1,037

          1,200

          710

          14,182

          19,143

          Quality Lease Service, LLC

          Provider of Rigsite Accommodation Unit Rentals and Related Services

          Member Units

          6/8/2015

          1,000

          9,213

          2,149

          River Aggregates, LLC

          Processor of Construction Aggregates

          Member Units

          (8) (30)

          12/20/2013

          1,500

          369

          3,280

          Robbins Bros. Jewelry, Inc.

          Bridal Jewelry Retailer

          Secured Debt

          (9)

          12/15/2021

          12.00% (L+11.00%, Floor 1.00%)

          12/15/2026

          36,360

          35,956

          35,956

          Preferred Equity

          12/15/2021

          11,070

          11,070

          11,070

          47,026

          47,026

          Tedder Industries, LLC

          Manufacturer of Firearm Holsters and Accessories

          Secured Debt

          8/31/2018

          12.00%

          8/31/2022

          16,240

          16,181

          16,181

          Preferred Member Units

          8/31/2018

          505

          8,579

          8,579

          24,760

          24,760

          Televerde, LLC

          Provider of Telemarketing and Data Services

          Member Units

          1/6/2011

          460

          1,290

          7,280

          Trantech Radiator Topco, LLC

          Transformer Cooling Products and Services

          90


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Secured Debt

          5/31/2019

          12.00%

          5/31/2024

          8,720

          8,663

          8,712

          Common Stock

          (8)

          5/31/2019

          615

          4,655

          8,660

          13,318

          17,372

          UnionRock Energy Fund II, LP

          (12) (13)

          Investment Partnership

          LP Interests

          (8) (31)

          6/15/2020

          49.6%

          3,828

          6,122

          Vision Interests, Inc.

          Manufacturer / Installer of Commercial Signage

          Series A Preferred Stock

          12/23/2011

          3,000,000

          3,000

          3,000

          VVS Holdco LLC

          Omnichannel Retailer of Animal Health Products

          Secured Debt

          (9)(30)

          12/1/2021

          7.00% (L+6.00%, Floor 1.00%)

          12/1/2026

          1,200

          1,170

          1,169

          Secured Debt

          (30)

          12/1/2021

          11.50%

          12/1/2026

          30,400

          30,100

          30,100

          Preferred Equity

          (30)

          12/1/2021

          11,840

          11,840

          11,840

          43,110

          43,109

          Ziegler’s NYPD, LLC

          Casual Restaurant Group

          Secured Debt

          6/1/2015

          12.00%

          10/1/2022

          625

          625

          625

          Secured Debt

          10/1/2008

          6.50%

          10/1/2022

          1,000

          1,000

          1,000

          Secured Debt

          10/1/2008

          14.00%

          10/1/2022

          2,750

          2,750

          2,750

          Preferred Member Units

          6/30/2015

          10,072

          2,834

          2,130

          Warrants

          (27)

          7/1/2015

          587

          10/1/2025

          600

          -

          7,809

          6,505

          Subtotal Control Investments (83.3% of net assets at fair value)

          $

          1,107,597

          $

          1,489,257

          91


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Affiliate Investments (6)

          AAC Holdings, Inc.

          (11)

          Substance Abuse Treatment Service Provider

          Secured Debt

          (19)

          12/11/2020

          18.00% (10.00% Cash, 8.00% PIK)

          6/25/2025

          $

          10,202

          $

          10,011

          $

          9,794

          Common Stock

          12/11/2020

          593,928

          3,148

          2,079

          Warrants

          (27)

          12/11/2020

          554,353

          12/11/2025

          -

          1,940

          13,159

          13,813

          AFG Capital Group, LLC

          Provider of Rent-to-Own Financing Solutions and Services

          Secured Debt

          4/25/2019

          10.00%

          5/25/2022

          144

          144

          144

          Preferred Member Units

          (8)

          11/7/2014

          186

          1,200

          7,740

          1,344

          7,884

          ATX Networks Corp.

          (11)

          Provider of Radio Frequency Management Equipment

          Secured Debt

          (9)

          9/1/2021

          8.50% (L+7.50%, Floor 1.00%)

          9/1/2026

          7,667

          7,092

          7,092

          Unsecured Debt

          (19)

          9/1/2021

          10.00% PIK

          9/1/2028

          3,067

          1,963

          1,963

          Common Stock

          9/1/2021

          583

          -

          -

          9,055

          9,055

          BBB Tank Services, LLC

          Maintenance, Repair and Construction Services to the Above-Ground Storage Tank Market

          Unsecured Debt

          (9) (17)

          4/8/2016

          12.00% (L+11.00%, Floor 1.00%)

          4/8/2021

          4,800

          4,800

          2,508

          Preferred Stock (non-voting)

          (8) (14) (19)

          12/17/2018

          15.00% PIK

          162

          -

          Member Units

          4/8/2016

          800,000

          800

          -

          5,762

          2,508

          Boccella Precast Products LLC

          Manufacturer of Precast Hollow Core Concrete

          Secured Debt

          9/23/2021

          10.00%

          2/28/2027

          320

          320

          320

          Member Units

          (8)

          6/30/2017

          2,160,000

          2,256

          4,830

          2,576

          5,150

          Brightwood Capital Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (Brightwood Capital Fund V, LP)

          (31)

          7/12/2021

          15.8%

          1,000

          1,000

          Buca C, LLC

          Casual Restaurant Group

          Secured Debt

          (9) (17)

          6/30/2015

          10.25% (L+9.25%, Floor 1.00%)

          6/30/2020

          19,491

          19,491

          14,370

          Preferred Member Units

          (14) (19)

          6/30/2015

          6

          6.00% PIK

          4,770

          -

          24,261

          14,370

          Career Team Holdings, LLC

          Provider of Workforce Training and Career Development Services

          Secured Debt

          12/17/2021

          12.50%

          12/17/2026

          20,250

          20,050

          20,050

          Class A Common Units

          12/17/2021

          450,000

          4,500

          4,500

          24,550

          24,550

          Chandler Signs Holdings, LLC

          (10)

          Sign Manufacturer

          Class A Units

          1/4/2016

          1,500,000

          1,500

          460

          Classic H&G Holdings, LLC

          Provider of Engineered Packaging Solutions

          92


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Secured Debt

          (9)

          3/12/2020

          7.00% (L+6.00%, Floor 1.00%)

          3/12/2025

          4,000

          4,000

          4,000

          Secured Debt

          3/12/2020

          8.00%

          3/12/2025

          19,274

          19,139

          19,274

          Preferred Member Units

          (8)

          3/12/2020

          154

          5,760

          15,260

          28,899

          38,534

          Congruent Credit Opportunities Funds

          (12) (13)

          Investment Partnership

          LP Interests (Congruent Credit Opportunities Fund
          III, LP)

          (8) (31)

          2/4/2015

          17.4%

          10,256

          9,959

          DMA Industries, LLC

          Distributor of aftermarket ride control products

          Secured Debt

          11/19/2021

          12.00%

          11/19/2026

          21,200

          20,993

          20,993

          Preferred Equity

          11/19/2021

          5,944

          5,944

          5,944

          26,937

          26,937

          Dos Rios Partners

          (12) (13)

          Investment Partnership

          LP Interests (Dos Rios Partners, LP)

          (31)

          4/25/2013

          20.2%

          6,605

          10,329

          LP Interests (Dos Rios Partners - A, LP)

          (31)

          4/25/2013

          6.4%

          2,097

          3,280

          8,702

          13,609

          Dos Rios Stone Products LLC

          (10)

          Limestone and Sandstone Dimension Cut Stone Mining Quarries

          Class A Preferred Units

          (30)

          6/27/2016

          2,000,000

          2,000

          640

          EIG Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (EIG Global Private Debt Fund-A, L.P.)

          (8) (31)

          11/6/2015

          5,000,000

          594

          547

          Flame King Holdings, LLC

          Propane Tank and Accessories Distributor

          Secured Debt

          (9)

          10/29/2021

          7.50% (L+6.50%, Floor 1.00%)

          10/31/2026

          6,400

          6,324

          6,324

          Secured Debt

          (9)

          10/29/2021

          12.00% (L+11.00%, Floor 1.00%)

          10/31/2026

          21,200

          20,996

          20,996

          Preferred Equity

          10/29/2021

          9,360

          10,400

          10,400

          37,720

          37,720

          Freeport Financial Funds

          (12) (13)

          Investment Partnership

          LP Interests (Freeport Financial SBIC Fund LP)

          (31)

          3/23/2015

          9.3%

          5,974

          6,078

          LP Interests (Freeport First Lien Loan Fund III LP)

          (8) (31)

          7/31/2015

          6.0%

          7,629

          7,231

          13,603

          13,309

          GFG Group, LLC.

          Grower and Distributor of a Variety of Plants and Products to Other Wholesalers, Retailers and Garden Centers

          Secured Debt

          3/31/2021

          12.00%

          3/31/2026

          12,545

          12,435

          12,545

          Preferred Member Units

          (8)

          3/31/2021

          226

          4,900

          6,990

          17,335

          19,535

          Harris Preston Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (HPEP 3, L.P.)

          (31)

          8/9/2017

          8.2%

          3,193

          4,712

          93


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Hawk Ridge Systems, LLC

          (13)

          Value-Added Reseller of Engineering Design and Manufacturing Solutions

          Secured Debt

          (9)

          12/2/2016

          7.00% (L+6.00%, Floor 1.00%)

          1/15/2026

          2,585

          2,585

          2,585

          Secured Debt

          12/2/2016

          8.00%

          1/15/2026

          34,800

          34,672

          34,800

          Preferred Member Units

          (8)

          12/2/2016

          226

          2,850

          14,680

          Preferred Member Units

          (30)

          12/2/2016

          226

          150

          770

          40,257

          52,835

          Houston Plating and Coatings, LLC

          Provider of Plating and Industrial Coating Services

          Unsecured Convertible Debt

          5/1/2017

          8.00%

          5/1/2022

          3,000

          3,000

          2,960

          Member Units

          (8)

          1/8/2003

          322,297

          2,352

          3,210

          5,352

          6,170

          I-45 SLF LLC

          (12) (13)

          Investment Partnership

          Member Units (Fully diluted 20.0%; 24.40% profits
          interest) (8)

          (8)

          10/20/2015

          19,000

          14,387

          Iron-Main Investments, LLC

          Consumer Reporting Agency Providing Employment Background Checks and Drug Testing

          Secured Debt

          8/3/2021

          13.00%

          8/1/2026

          4,600

          4,557

          4,557

          Secured Debt

          9/1/2021

          12.50%

          9/1/2026

          3,200

          3,170

          3,170

          Secured Debt

          8/3/2021

          12.50%

          11/30/2026

          20,000

          19,805

          19,805

          Secured Debt

          (19)

          8/3/2021

          12.50% PIK

          3/31/2022

          8,944

          8,944

          8,944

          Common Stock

          8/3/2021

          179,778

          1,798

          1,798

          38,274

          38,274

          L.F. Manufacturing Holdings, LLC

          (10)

          Manufacturer of Fiberglass Products

          Preferred Member Units (non-voting)

          (8) (19)

          1/1/2019

          14.00% PIK

          107

          107

          Member Units

          12/23/2013

          2,179,001

          2,019

          2,557

          2,126

          2,664

          OnAsset Intelligence, Inc.

          Provider of Transportation Monitoring / Tracking Products and Services

          Secured Debt

          (19)

          5/20/2014

          12.00% PIK

          12/31/2022

          935

          935

          935

          Secured Debt

          (19)

          3/21/2014

          12.00% PIK

          12/31/2022

          954

          954

          954

          Secured Debt

          (19)

          5/10/2013

          12.00% PIK

          12/31/2022

          2,055

          2,055

          2,055

          Secured Debt

          (19)

          4/18/2011

          12.00% PIK

          12/31/2022

          4,286

          4,286

          4,286

          Unsecured Debt

          (19)

          6/5/2017

          10.00% PIK

          12/31/2022

          192

          192

          192

          Preferred Stock

          (14) (19)

          4/18/2011

          912

          7.00% PIK

          1,981

          -

          Common Stock

          4/15/2021

          635

          830

          -

          Warrants

          (27)

          4/18/2011

          4,699

          5/10/2023

          1,089

          -

          12,322

          8,422

          Oneliance, LLC

          Construction Cleaning Company

          Secured Debt

          (9)

          8/6/2021

          12.00% (L+11.00%, Floor 1.00%)

          8/6/2026

          5,600

          5,547

          5,547

          Preferred Stock

          8/6/2021

          1,056

          1,056

          1,056

          6,603

          6,603

          Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)

          Provider of Rigsite Accommodation Unit Rentals and Related Services

          Secured Debt

          (14) (17)

          6/30/2015

          12.00%

          1/8/2018

          30,369

          29,865

          -

          Preferred Member Units

          1/8/2013

          250

          2,500

          -

          32,365

          -

          94


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          SI East, LLC

          Rigid Industrial Packaging Manufacturing

          Secured Debt

          8/31/2018

          10.25%

          8/31/2023

          65,850

          65,738

          65,850

          Preferred Member Units

          (8)

          8/31/2018

          157

          1,218

          11,570

          66,956

          77,420

          Slick Innovations, LLC

          Text Message Marketing Platform

          Secured Debt

          9/13/2018

          13.00%

          9/13/2023

          5,320

          5,248

          5,320

          Common Stock

          9/13/2018

          70,000

          700

          1,510

          Warrants

          (27)

          9/13/2018

          18,084

          9/13/2028

          181

          400

          6,129

          7,230

          Sonic Systems International, LLC

          (10)

          Nuclear Power Staffing Services

          Secured Debt

          (9)

          8/20/2021

          8.50% (L+7.50%, Floor 1.00%)

          8/20/2026

          11,982

          11,757

          11,757

          Common Stock

          8/20/2021

          7,866

          1,070

          1,070

          12,827

          12,827

          Superior Rigging & Erecting Co.

          Provider of Steel Erecting, Crane Rental & Rigging Services

          Secured Debt

          8/31/2020

          12.00%

          8/31/2025

          21,500

          21,332

          21,332

          Preferred Member Units

          8/31/2020

          1,571

          4,500

          4,500

          25,832

          25,832

          The Affiliati Network, LLC

          Performance Marketing Solutions

          Secured Debt

          8/9/2021

          7.00%

          8/9/2026

          280

          262

          262

          Secured Debt

          8/9/2021

          11.83%

          8/9/2026

          12,961

          12,834

          12,834

          Preferred Stock

          (8)

          8/9/2021

          1,280,000

          6,400

          6,400

          19,496

          19,496

          UniTek Global Services, Inc.

          (11)

          Provider of Outsourced Infrastructure Services

          Secured Debt

          (9) (19)

          10/15/2018

          8.50% (6.50% cash, 2.00% PIK) (2.00% PIK, L+5.50% Floor 1.00%)

          8/20/2024

          397

          396

          371

          Secured Debt

          (9) (19)

          8/27/2018

          8.50% (6.50% cash, 2.00% PIK) (2.00% PIK, L+5.50% Floor 1.00%)

          8/20/2024

          1,986

          1,974

          1,852

          Secured Convertible Debt

          (19)

          1/1/2021

          15.00% PIK

          2/20/2025

          1,197

          1,197

          2,375

          Preferred Stock

          (8) (19)

          8/29/2019

          1,133,102

          20.00% PIK

          1,757

          2,833

          Preferred Stock

          (14) (19)

          8/21/2018

          1,521,122

          20.00% PIK

          2,188

          1,498

          Preferred Stock

          (14) (19)

          1/15/2015

          4,336,866

          13.50% PIK

          7,924

          -

          Preferred Stock

          (14) (19)

          6/30/2017

          2,281,682

          19.00% PIK

          3,667

          -

          Common Stock

          4/1/2020

          945,507

          -

          -

          19,103

          8,929

          Universal Wellhead Services Holdings, LLC

          (10)

          Provider of Wellhead Equipment, Designs, and Personnel to the Oil & Gas Industry

          Preferred Member Units

          (14) (19) (30)

          12/7/2016

          716,949

          14.00% PIK

          1,032

          -

          Member Units

          (30)

          12/7/2016

          4,000,000

          4,000

          -

          5,032

          -

          Volusion, LLC

          Provider of Online Software-as-a-Service eCommerce Solutions

          Secured Debt

          (17)

          1/26/2015

          11.50%

          1/26/2020

          17,434

          17,434

          17,434

          Unsecured Convertible Debt

          5/16/2018

          8.00%

          11/16/2023

          409

          409

          409

          Preferred Member Units

          1/26/2015

          4,876,670

          14,000

          5,990

          Warrants

          (27)

          1/26/2015

          1,831,355

          1/26/2025

          2,576

          -

          34,419

          23,833

          Subtotal Affiliate Investments (30.7% of net assets at fair value)

          $

          578,539

          $

          549,214

          95


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Non-Control/Non-Affiliate Investments (7)

          Acousti Engineering Company of Florida

          (10)

          Interior Subcontractor Providing Acoustical Walls and Ceilings

          Secured Debt

          (9)

          11/2/2020

          10.00% (L+8.50%, Floor 1.50%)

          11/2/2025

          $

          12,111

          $

          12,005

          $

          12,111

          Secured Debt

          (9)

          5/26/2021

          14.00% (L+12.50%, Floor 1.50%)

          11/2/2025

          850

          841

          850

          12,846

          12,961

          ADS Tactical, Inc.

          (11)

          Value-Added Logistics and Supply Chain Provider to the Defense Industry

          Secured Debt

          (9)

          3/29/2021

          6.75% (L+5.75%, Floor 1.00%)

          3/19/2026

          22,136

          21,734

          22,012

          American Health Staffing Group, Inc.

          (10)

          Healthcare Temporary Staffing

          Secured Debt

          (9)

          11/19/2021

          7.00% (L+6.00%, Floor 1.00%)

          11/19/2026

          7,067

          6,988

          6,988

          American Nuts, LLC

          (10)

          Roaster, Mixer and Packager of Bulk Nuts and Seeds

          Secured Debt

          (9)

          12/21/2018

          9.00% (L+8.00%, Floor 1.00%)

          4/10/2025

          12,017

          11,854

          12,017

          American Teleconferencing Services, Ltd.

          (11)

          Provider of Audio Conferencing and Video Collaboration Solutions

          Secured Debt

          (9) (14) (17)

          9/17/2021

          7.50% (L+6.50%, Floor 1.00%)

          9/9/2021

          2,980

          2,980

          89

          Secured Debt

          (9) (14)

          5/19/2016

          7.50% (L+6.50%, Floor 1.00%)

          6/28/2023

          14,370

          13,706

          431

          16,686

          520

          ArborWorks, LLC

          (10)

          Vegetation Management Services

          Secured Debt

          (9)

          11/9/2021

          8.00% (L+7.00%, Floor 1.00%)

          11/9/2026

          32,605

          31,873

          31,873

          Common Equity

          11/9/2021

          234

          234

          234

          32,107

          32,107

          Arrow International, Inc

          (10)

          Manufacturer and Distributor of Charitable Gaming Supplies

          Secured Debt

          (9) (23)

          12/21/2020

          9.18% (L+7.93%, Floor 1.25%)

          12/21/2025

          22,500

          22,300

          22,500

          AVEX Aviation Holdings, LLC

          (10)

          Specialty Aircraft Dealer

          Secured Debt

          (9)

          12/15/2021

          7.50% (L+6.50%, Floor 1.00%)

          12/15/2026

          13,320

          13,005

          13,005

          Common Equity

          12/15/2021

          360

          360

          360

          13,365

          13,365

          Berry Aviation, Inc.

          (10)

          Charter Airline Services

          Secured Debt

          (19)

          7/6/2018

          12.00% (10.50% Cash, 1.50% PIK)

          1/6/2024

          4,694

          4,674

          4,694

          Preferred Member Units

          (8) (19) (30)

          11/12/2019

          122,416

          16.00% PIK

          168

          208

          Preferred Member Units

          (14) (19) (30)

          7/6/2018

          1,548,387

          8.00% PIK

          1,671

          2,487

          6,513

          7,389

          Binswanger Enterprises, LLC

          (10)

          Glass Repair and Installation Service Provider

          Secured Debt

          (9)

          3/10/2017

          9.50% (L+8.50%, Floor 1.00%)

          3/10/2023

          12,194

          12,107

          12,194

          Member Units

          3/10/2017

          1,050,000

          1,050

          730

          13,157

          12,924

          96


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Bluestem Brands, Inc.

          (11)

          Multi-Channel Retailer of General Merchandise

          Secured Debt

          (9)

          8/28/2020

          10.00% (L+8.50%, Floor 1.50%)

          8/28/2025

          5,357

          5,357

          5,337

          Common Stock

          (8)

          10/1/2020

          723,184

          1

          1,515

          5,358

          6,852

          Brainworks Software, LLC

          (10)

          Advertising Sales and Newspaper Circulation Software

          Secured Debt

          (9) (14) (17)

          8/12/2014

          12.50% (Prime+9.25%, Floor 3.25%)

          7/22/2019

          7,817

          7,817

          4,201

          Brightwood Capital Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (Brightwood Capital Fund III, LP)

          (8) (31)

          7/21/2014

          1.6%

          7,200

          4,269

          LP Interests (Brightwood Capital Fund IV, LP)

          (8) (31)

          10/26/2016

          0.6%

          4,350

          4,394

          11,550

          8,663

          Burning Glass Intermediate Holding Company, Inc.

          (10)

          Provider of Skills-Based Labor Market Analytics

          Secured Debt

          (9)

          6/14/2021

          6.00% (L+5.00%, Floor 1.00%)

          6/10/2026

          465

          429

          429

          Secured Debt

          (9)

          6/14/2021

          6.00% (L+5.00%, Floor 1.00%)

          6/10/2028

          20,134

          19,803

          19,985

          20,232

          20,414

          Cadence Aerospace LLC

          (10)

          Aerostructure Manufacturing

          Secured Debt

          (19) (35)

          11/14/2017

          9.28% Cash, 0.22% PIK

          11/14/2023

          28,540

          28,399

          26,767

          CAI Software LLC

          Provider of Specialized Enterprise Resource Planning Software

          Preferred Equity

          12/13/2021

          1,788,527

          1,789

          1,789

          Preferred Equity

          12/13/2021

          596,176

          -

          -

          1,789

          1,789

          Camin Cargo Control, Inc.

          (11)

          Provider of Mission Critical Inspection, Testing and Fuel Treatment Services

          Secured Debt

          (9)

          6/14/2021

          7.50% (L+6.50%, Floor 1.00%)

          6/4/2026

          15,920

          15,775

          15,840

          Cenveo Corporation

          (11)

          Provider of Digital Marketing Agency Services

          Common Stock

          9/7/2018

          322,907

          6,183

          2,852

          Chisholm Energy Holdings, LLC

          (10)

          Oil & Gas Exploration & Production

          Secured Debt

          (9)

          5/15/2019

          7.75% (L+6.25%, Floor 1.50%)

          5/15/2026

          2,857

          2,804

          2,663

          Clarius BIGS, LLC

          (10)

          Prints & Advertising Film Financing

          Secured Debt

          (14) (17) (19)

          9/23/2014

          15.00% PIK

          1/5/2015

          2,756

          2,756

          33

          Computer Data Source, LLC

          (10)

          Third Party Maintenance Provider to the Data Center Ecosystem

          Secured Debt

          (9)

          8/6/2021

          8.50% (L+7.50%, Floor 1.00%)

          8/6/2026

          21,681

          21,234

          21,234

          Construction Supply Investments, LLC

          (10)

          Distribution Platform of Specialty Construction

          97


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Materials to Professional Concrete and Masonry Contractors

          Member Units

          (8)

          12/29/2016

          861,618

          3,335

          14,640

          Darr Equipment LP

          (10)

          Heavy Equipment Dealer

          Secured Debt

          (19)

          12/26/2017

          12.50% (11.50% Cash, 1.00% PIK)

          6/22/2023

          4,685

          4,685

          4,227

          Warrants

          (29)

          4/15/2014

          915,734

          12/23/2023

          474

          160

          5,159

          4,387

          DTE Enterprises, LLC

          (10)

          Industrial Powertrain Repair and Services

          Secured Debt

          (9)

          4/13/2018

          9.50% (L+8.00%, Floor 1.50%)

          4/13/2023

          9,324

          9,259

          8,884

          Class AA Preferred Member Units (non-voting)

          (8) (19)

          4/13/2018

          10.00% PIK

          1,051

          1,051

          Class A Preferred Member Units

          (14) (19)

          4/13/2018

          776,316

          8.00% PIK

          776

          320

          11,086

          10,255

          Dynamic Communities, LLC

          (10)

          Developer of Business Events and Online Community Groups

          Secured Debt

          (9)

          7/17/2018

          9.50% (L+8.50%, Floor 1.00%)

          7/17/2023

          5,681

          5,638

          5,569

          Eastern Wholesale Fence LLC

          (10)

          Manufacturer and Distributor of Residential and Commercial Fencing Solutions

          Secured Debt

          (9)

          11/19/2020

          8.00%, (L+7.00%, Floor 1.00%)

          10/30/2025

          31,810

          31,238

          31,810

          EnCap Energy Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (EnCap Energy Capital Fund VIII, L.P.)

          (8) (31)

          1/22/2015

          0.1%

          3,745

          1,599

          LP Interests (EnCap Energy Capital Fund VIII Co-
          Investors, L.P.)

          (31)

          1/21/2015

          0.4%

          2,097

          777

          LP Interests (EnCap Energy Capital Fund IX, L.P.)

          (8) (31)

          1/22/2015

          0.1%

          4,047

          2,284

          LP Interests (EnCap Energy Capital Fund X, L.P.)

          (8) (31)

          3/25/2015

          0.1%

          8,443

          8,276

          LP Interests (EnCap Flatrock Midstream Fund II, L.P.)

          (31)

          3/30/2015

          0.8%

          6,582

          2,796

          LP Interests (EnCap Flatrock Midstream Fund III, L.P.)

          (8) (31)

          3/27/2015

          0.2%

          6,082

          5,064

          30,996

          20,796

          EPIC Y-Grade Services, LP

          (11)

          NGL Transportation & Storage

          Secured Debt

          (9)

          6/22/2018

          7.00% (L+6.00%, Floor 1.00%)

          6/30/2027

          6,892

          6,819

          5,862

          Event Holdco, LLC

          (10)

          Event and Learning Management Software for Healthcare

          98


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Organizations and Systems

          Secured Debt

          (9)(30)

          12/22/2021

          8.00% (L+7.00%, Floor 1.00%)

          12/22/2026

          51,692

          51,135

          51,135

          Flip Electronics LLC

          (10)

          Distributor of Hard-to-Find and Obsolete Electronic Components

          Secured Debt

          (9) (33)

          1/4/2021

          9.09% (L+8.09%, Floor 1.00%)

          1/2/2026

          5,400

          5,304

          5,287

          Fortna Acquisition Co., Inc.

          (10)

          Process, Physical Distribution and Logistics Consulting Services

          Secured Debt

          7/23/2019

          5.09% (L+5.00%)

          4/8/2025

          7,595

          7,525

          7,595

          Fuse, LLC

          (11)

          Cable Networks Operator

          Secured Debt

          6/30/2019

          12.00%

          6/28/2024

          1,810

          1,810

          1,672

          Common Stock

          6/30/2019

          10,429

          256

          -

          2,066

          1,672

          GeoStabilization International (GSI)

          (11)

          Geohazard Engineering Services & Maintenance

          Secured Debt

          1/2/2019

          5.35% (L+5.25%)

          12/19/2025

          20,710

          20,615

          20,606

          GoWireless Holdings, Inc.

          (11)

          Provider of Wireless Telecommunications Carrier Services

          Secured Debt

          (9)

          1/10/2018

          7.50% (L+6.50%, Floor 1.00%)

          12/22/2024

          18,534

          18,440

          18,576

          Grupo Hima San Pablo, Inc.

          (11)

          Tertiary Care Hospitals

          Secured Debt

          (9) (14) (17)

          3/7/2013

          9.25% (L+7.00%, Floor 1.50%)

          4/30/2019

          4,504

          4,504

          1,269

          Secured Debt

          (14) (17)

          3/7/2013

          13.75%

          10/15/2018

          2,055

          2,040

          49

          Secured Debt

          (17)

          3/7/2013

          12.00%

          12/24/2021

          147

          147

          147

          6,691

          1,465

          GS HVAM Intermediate, LLC

          (10)

          Specialized Food Distributor

          Secured Debt

          (9)

          10/18/2019

          6.75% (L+5.75%, Floor 1.00%)

          10/2/2024

          13,243

          13,167

          13,243

          GS Operating, LLC

          (10)

          Distributor of Industrial and Specialty Parts

          Secured Debt

          (9)

          2/24/2020

          8.00% (L+6.50%, Floor 1.50%)

          2/24/2025

          28,451

          28,068

          28,451

          HDC/HW Intermediate Holdings

          (10)

          Managed Services and Hosting Provider

          Secured Debt

          (9)

          12/21/2018

          8.50% (L+7.50%, Floor 1.00%)

          12/21/2023

          3,449

          3,419

          3,059

          Heartland Dental, LLC

          (10)

          Dental Support Organization

          Secured Debt

          (9)

          9/9/2020

          7.50% (L+6.50%, Floor 1.00%)

          4/30/2025

          14,813

          14,477

          14,887

          HOWLCO LLC

          (11) (13) (21)

          Provider of Accounting and Business Development Software to Real Estate End Markets

          Secured Debt

          (9)

          8/19/2021

          7.00% (L+6.00%, Floor 1.00%)

          10/23/2026

          25,546

          25,546

          25,546

          Hybrid Promotions, LLC

          (10)

          Wholesaler of Licensed, Branded and Private Label Apparel

          99


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Secured Debt

          (9)

          6/30/2021

          9.25% (L+8.25%, Floor 1.00%)

          6/30/2026

          7,088

          6,957

          7,028

          IG Parent Corporation

          (11)

          Software Engineering

          Secured Debt

          (9)

          7/30/2021

          6.75% (L+5.75%, Floor 1.00%)

          7/30/2026

          9,591

          9,419

          9,419

          Implus Footcare, LLC

          (10)

          Provider of Footwear and Related Accessories

          Secured Debt

          (9)

          6/1/2017

          8.75% (L+7.75%, Floor 1.00%)

          4/30/2024

          18,702

          18,471

          17,743

          Independent Pet Partners Intermediate Holdings, LLC

          (10)

          Omnichannel Retailer of Specialty Pet Products

          Secured Debt

          (36)

          8/20/2020

          7.20%

          12/22/2022

          6,563

          6,563

          6,563

          Secured Debt

          (19)

          12/10/2020

          6.00% PIK

          11/20/2023

          17,891

          16,861

          16,861

          Preferred Stock (non-voting)

          (19)

          12/10/2020

          6.00% PIK

          3,235

          4,329

          Preferred Stock (non-voting)

          12/10/2020

          -

          -

          Member Units

          11/20/2018

          1,558,333

          1,558

          -

          28,217

          27,753

          Industrial Services Acquisition, LLC

          (10)

          Industrial Cleaning Services

          Secured Debt

          (9)

          8/13/2021

          7.75% (L+6.75%, Floor 1.00%)

          8/13/2026

          19,897

          19,490

          19,490

          Preferred Member Units

          (8) (19) (30)

          1/31/2018

          144

          10.00% PIK

          120

          164

          Preferred Member Units

          (8) (19) (30)

          5/17/2019

          80

          20.00% PIK

          81

          99

          Member Units

          (30)

          6/17/2016

          900

          900

          730

          20,591

          20,483

          Infolinks Media Buyco, LLC

          (10)

          Exclusive Placement Provider to the Advertising Ecosystem

          Secured Debt

          (9)

          11/1/2021

          7.00% (L+6.00%, Floor 1.00%)

          11/1/2026

          8,680

          8,487

          8,487

          Interface Security Systems, L.L.C

          (10)

          Commercial Security & Alarm Services

          Secured Debt

          (9)

          12/9/2021

          11.75% (L+10.00%, Floor 1.75%)

          8/7/2023

          525

          525

          525

          Secured Debt

          (9) (14) (19)

          8/7/2019

          9.75% (8.75% Cash, 1.00% PIK) (1.00% PIK + L+7.00%, Floor 1.75%)

          8/7/2023

          7,313

          7,237

          5,233

          7,762

          5,758

          Intermedia Holdings, Inc.

          (11)

          Unified Communications as a Service

          Secured Debt

          (9)

          8/3/2018

          7.00% (L+6.00%, Floor 1.00%)

          7/19/2025

          20,627

          20,559

          20,527

          Invincible Boat Company, LLC.

          (10)

          Manufacturer of Sport Fishing Boats

          Secured Debt

          (9)

          8/28/2019

          8.00% (L+6.50%, Floor 1.50%)

          8/28/2025

          17,510

          17,354

          17,510

          INW Manufacturing, LLC

          (11)

          Manufacturer of Nutrition and Wellness Products

          Secured Debt

          (9)

          5/19/2021

          6.50% (L+5.75%, Floor 0.75%)

          3/25/2027

          7,406

          7,205

          7,258

          Isagenix International, LLC

          (11)

          Direct Marketer of Health & Wellness Products

          Secured Debt

          (9)

          6/21/2018

          6.75% (L+5.75%, Floor 1.00%)

          6/14/2025

          5,158

          5,135

          3,865

          Jackmont Hospitality, Inc.

          (10)

          Franchisee of Casual Dining Restaurants

          100


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Secured Debt

          (9)

          5/26/2015

          8.00% (L+7.00%, Floor 1.00%)

          11/4/2024

          2,100

          2,100

          2,100

          Preferred Equity

          11/8/2021

          2,826,667

          314

          314

          2,414

          2,414

          Joerns Healthcare, LLC

          (11)

          Manufacturer and Distributor of Health Care Equipment & Supplies

          Secured Debt

          (9)

          8/21/2019

          7.00% (L+6.00%, Floor 1.00%)

          8/21/2024

          4,034

          3,989

          3,658

          Secured Debt

          (19)

          11/15/2021

          15.00% PIK

          11/8/2022

          1,000

          1,004

          1,004

          Common Stock

          8/21/2019

          472,579

          4,429

          -

          9,422

          4,662

          JTI Electrical & Mechanical, LLC

          (10)

          Electrical, Mechanical and Automation Services

          Secured Debt

          (9)

          12/22/2021

          7.00% (L+6.00%, Floor 1.00%)

          12/22/2026

          37,895

          36,972

          36,972

          Common Equity

          12/22/2021

          1,684,211

          1,684

          1,684

          38,656

          38,656

          Klein Hersh, LLC

          (10)

          Executive and C-Suite Placement for the Life Sciences and Healthcare Industries

          Secured Debt

          (9)

          11/13/2020

          7.75% (L+7.00%, Floor 0.75%)

          11/13/2025

          43,321

          42,342

          43,278

          KMS, LLC

          (10)

          Wholesaler of Closeout and Value-priced Products

          Secured Debt

          (9)

          10/4/2021

          8.25% (L+7.25%, Floor 1.00%)

          10/4/2026

          7,581

          7,415

          7,415

          Kore Wireless Group Inc.

          (11) (13)

          Mission Critical Software Platform

          Secured Debt

          12/31/2018

          5.72% (L+5.50%)

          12/20/2024

          11,415

          11,345

          11,400

          Laredo Energy, LLC

          (10)

          Oil & Gas Exploration & Production

          Member Units

          5/4/2020

          1,155,952

          11,560

          9,659

          LaserAway Intermediate Holdings II, LLC

          (11)

          Aesthetic Dermatology Service Provider

          Secured Debt

          (9)

          10/18/2021

          6.50% (L+5.75%, Floor 0.75%)

          10/14/2027

          4,130

          4,050

          4,115

          Lightbox Holdings, L.P.

          (11)

          Provider of Commercial Real Estate Software

          Secured Debt

          5/23/2019

          5.22% (L+5.00%)

          5/9/2026

          14,625

          14,460

          14,442

          LKCM Headwater Investments I, L.P.

          (12) (13)

          Investment Partnership

          LP Interests

          (8) (31)

          1/25/2013

          2.3%

          1,746

          2,541

          LL Management, Inc.

          (10)

          Medical Transportation Service Provider

          Secured Debt

          (9)

          5/2/2019

          8.25% (L+7.25%, Floor 1.00%)

          9/25/2023

          17,438

          17,309

          17,438

          LLFlex, LLC

          (10)

          Provider of Metal-Based Laminates

          Secured Debt

          (9)

          8/16/2021

          10.00% (L+9.00%, Floor 1.00%)

          8/16/2026

          4,478

          4,382

          4,382

          Logix Acquisition Company, LLC

          (10)

          Competitive Local Exchange Carrier

          Secured Debt

          (9)

          1/8/2018

          6.75% (L+5.75%, Floor 1.00%)

          12/22/2024

          25,850

          24,605

          24,428

          Looking Glass Investments, LLC

          (12) (13)

          Specialty Consumer Finance

          101


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Member Units

          7/1/2015

          3

          125

          25

          Mac Lean-Fogg Company

          (10)

          Manufacturer and Supplier for Auto and Power Markets

          Secured Debt

          (9)

          4/22/2019

          5.88% (L+5.25%, Floor 0.625%)

          12/22/2025

          17,080

          16,995

          17,080

          Preferred Stock

          (19)

          10/1/2019

          13.75% (4.50% Cash, 9.25% PIK)

          1,920

          1,920

          18,915

          19,000

          Mako Steel, LP

          (10)

          Self-Storage Design & Construction

          Secured Debt

          (9)

          3/15/2021

          8.00% (L+7.25%, Floor 0.75%)

          3/13/2026

          17,589

          17,267

          17,589

          MB2 Dental Solutions, LLC

          (11)

          Dental Partnership Organization

          Secured Debt

          (9)

          1/28/2021

          7.00% (L+6.00%, Floor 1.00%)

          1/29/2027

          11,682

          11,531

          11,682

          Mills Fleet Farm Group, LLC

          (10)

          Omnichannel Retailer of Work, Farm and Lifestyle Merchandise

          Secured Debt

          (9)

          10/24/2018

          7.25% (L+6.25%, Floor 1.00%)

          10/24/2024

          17,781

          17,563

          17,781

          NBG Acquisition Inc

          (11)

          Wholesaler of Home Décor Products

          Secured Debt

          (9)

          4/28/2017

          6.50% (L+5.50%, Floor 1.00%)

          4/26/2024

          3,987

          3,961

          2,758

          NinjaTrader, LLC

          (10)

          Operator of Futures Trading Platform

          Secured Debt

          (9)

          12/18/2019

          7.25% (L+6.25%, Floor 1.00%)

          12/18/2024

          31,425

          30,837

          31,368

          NNE Partners, LLC

          (10)

          Oil & Gas Exploration & Production

          Secured Debt

          (19)

          3/2/2017

          9.37% (4.87% Cash, 4.50% PIK) (4.50% PIK + L+4.75%)

          12/31/2023

          24,781

          24,709

          23,154

          Northstar Group Services, Inc

          (11)

          Commercial & Industrial Services

          Secured Debt

          (9)

          11/1/2021

          6.50% (L+5.50%, Floor 1.00%)

          11/12/2026

          10,000

          9,952

          10,034

          NTM Acquisition Corp.

          (11)

          Provider of B2B Travel Information Content

          Secured Debt

          (9) (19)

          7/12/2016

          8.25% (7.25% Cash, 1.00% PIK) (1.00%PIK + L+6.25%, Floor 1.00%)

          6/7/2024

          4,598

          4,598

          4,552

          NWN Corporation

          (10)

          Value Added Reseller and Provider of Managed Services to a Diverse Set of Industries

          Secured Debt

          (9)

          5/7/2021

          7.50% (L+6.50%, Floor 1.00%)

          5/7/2026

          42,972

          42,108

          42,323

          Ospemifene Royalty Sub LLC

          (10)

          Estrogen-Deficiency Drug Manufacturer and Distributor

          Secured Debt

          (14)

          7/8/2013

          11.50%

          11/15/2026

          4,562

          4,562

          112

          OVG Business Services, LLC

          (10)

          Venue Management Services

          Secured Debt

          (9)

          11/29/2021

          7.25% (L+6.25%, Floor 1.00%)

          11/19/2028

          14,000

          13,861

          13,861

          102


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Project Eagle Holdings, LLC

          (10)

          Provider of Secure Business Collaboration Software

          Secured Debt

          (9)

          7/6/2020

          7.75% (L+6.75%, Floor 1.00%)

          7/6/2026

          29,738

          29,151

          29,714

          PT Network, LLC

          (10)

          Provider of Outpatient Physical Therapy and Sports Medicine Services

          Secured Debt

          (9) (19)

          10/12/2017

          8.50% (6.50% Cash, 2.00% PIK) (2.00% PIK + L+5.50%, Floor 1.00%)

          11/30/2023

          8,889

          8,889

          8,889

          Common Stock

          1/1/2020

          2

          -

          80

          8,889

          8,969

          RA Outdoors LLC

          (10)

          Software Solutions Provider for Outdoor Activity Management

          Secured Debt

          (9)

          4/8/2021

          7.75% (L+6.75%, Floor 1.00%)

          4/8/2026

          19,374

          19,193

          18,352

          Research Now Group, Inc. and Survey Sampling International, LLC

          (11)

          Provider of Outsourced Online Surveying

          Secured Debt

          (9)

          12/29/2017

          6.50% (L+5.50%, Floor 1.00%)

          12/20/2024

          20,124

          19,789

          19,899

          RM Bidder, LLC

          (10)

          Scripted and Unscripted TV and Digital Programming Provider

          Member Units

          11/12/2015

          2,779

          46

          26

          Warrants

          (26)

          11/12/2015

          187,161

          10/20/2025

          425

          -

          471

          26

          Roof Opco, LLC

          (10)

          Residential Re-Roofing/Repair

          Secured Debt

          (9)

          8/27/2021

          7.00% (L+6.00%, Floor 1.00%)

          8/27/2026

          2,800

          2,704

          2,704

          RTIC Subsidiary Holdings, LLC

          (10)

          Direct-To-Consumer eCommerce Provider of Outdoor Products

          Secured Debt

          (9)

          9/1/2020

          9.00% (L+7.75%, Floor 1.25%)

          9/1/2025

          18,191

          17,997

          18,191

          Rug Doctor, LLC.

          (10)

          Carpet Cleaning Products and Machinery

          Secured Debt

          (9)

          7/16/2021

          7.25% (L+6.25%, Floor 1.00%)

          11/16/2024

          11,145

          10,902

          10,902

          Salient Partners L.P.

          (11)

          Provider of Asset Management Services

          Secured Debt

          (9)

          8/31/2018

          7.00% (L+6.00%, Floor 1.00%)

          10/30/2022

          6,251

          6,247

          4,063

          Secured Debt

          (9)

          9/30/2021

          6.00% (L+5.00%, Floor 1.00%)

          10/30/2022

          1,250

          1,250

          2,435

          7,497

          6,498

          Savers, Inc.

          (11)

          For-Profit Thrift Retailer

          Secured Debt

          (9)

          5/14/2021

          6.25% (L+5.50%, Floor 0.75%)

          4/26/2028

          11,400

          11,295

          11,386

          SIB Holdings, LLC

          (10)

          Provider of Cost Reduction Services

          Secured Debt

          (9)

          10/29/2021

          7.00% (L+6.00%, Floor 1.00%)

          10/29/2026

          6,282

          6,134

          6,145

          Common Equity

          10/29/2021

          95,238

          200

          200

          6,334

          6,345

          South Coast Terminals Holdings, LLC

          (10)

          Specialty Toll Chemical Manufacturer

          103


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Secured Debt

          (9)

          12/10/2021

          7.25% (L+6.25%, Floor 1.00%)

          12/13/2026

          50,704

          49,589

          49,589

          Common Equity

          12/10/2021

          863,636

          864

          864

          50,453

          50,453

          Staples Canada ULC

          (10) (13) (21)

          Office Supplies Retailer

          Secured Debt

          (9) (22)

          9/14/2017

          8.00% (L+7.00%, Floor 1.00%)

          9/12/2024

          16,116

          16,039

          15,620

          Stellant Systems, Inc.

          (11)

          Manufacturer of Traveling Wave Tubes and Vacuum Electronic Devices

          Secured Debt

          (9)

          1/0/1900

          6.25% (L+5.50%, Floor 0.75%)

          10/1/2028

          7,700

          7,625

          7,700

          Student Resource Center, LLC

          (10)

          Higher Education Services

          Secured Debt

          (9)

          6/25/2021

          9.00% (L+8.00%, Floor 1.00%)

          6/25/2026

          10,969

          10,753

          10,826

          Tacala Investment Corp.

          (34)

          Quick Service Restaurant Group

          Secured Debt

          (9)

          3/19/2021

          4.25% (L+3.50%, Floor 0.75%)

          2/5/2027

          1,995

          1,995

          1,994

          Team Public Choices, LLC

          (11)

          Home-Based Care Employment Service Provider

          Secured Debt

          (9)

          12/22/2020

          6.00% (L+5.00%, Floor 1.00%)

          12/18/2027

          15,109

          14,778

          15,071

          Tectonic Financial, LLC

          Financial Services Organization

          Common Stock

          (8)

          5/15/2017

          200,000

          2,000

          4,650

          Tex Tech Tennis, LLC

          (10)

          Sporting Goods & Textiles

          Common Stock

          (30)

          7/7/2021

          1,000,000

          1,000

          1,000

          U.S. TelePacific Corp.

          (11)

          Provider of Communications and Managed Services

          Secured Debt

          (9)

          5/17/2017

          7.00% (L+6.00%, Floor 1.00%)

          5/2/2023

          17,088

          16,985

          12,917

          USA DeBusk LLC

          (10)

          Provider of Industrial Cleaning Services

          Secured Debt

          (9)

          10/22/2019

          6.75% (L+5.75%, Floor 1.00%)

          9/8/2026

          37,281

          36,510

          37,281

          Veregy Consolidated, Inc.

          (11)

          Energy Service Company

          Secured Debt

          (9)

          11/9/2020

          6.25% (L+5.25, Floor 1.00%)

          11/3/2025

          5,875

          5,111

          5,111

          Secured Debt

          (9)

          11/9/2020

          7.00% (L+6.00%, Floor 1.00%)

          11/3/2027

          14,888

          14,524

          14,925

          19,635

          20,036

          Vida Capital, Inc

          (11)

          Alternative Asset Manager

          Secured Debt

          10/10/2019

          6.10% (L+6.00%)

          10/1/2026

          17,089

          16,905

          15,850

          Vistar Media, Inc.

          (10)

          Operator of Digital Out-of-Home Advertising Platform

          Preferred Stock

          4/3/2019

          70,207

          767

          1,726

          VORTEQ Coil Finishers, LLC

          (10)

          Specialty Coating of Aluminum and Light-Gauge Steel

          Secured Debt

          (9)

          11/30/2021

          8.50% (L+7.50%, Floor 1.00%)

          11/30/2026

          25,962

          25,450

          25,450

          Common Equity

          11/30/2021

          1,038,462

          1,038

          1,038

          26,488

          26,488

          104


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Wahoo Fitness Acquisition L.L.C.

          (11)

          Fitness Training Equipment Provider

          Secured Debt

          (9)

          8/17/2021

          6.75% (L+5.75%, Floor 1.00%)

          8/12/2028

          15,000

          14,569

          14,916

          Wall Street Prep, Inc.

          (10)

          Financial Training Services

          Secured Debt

          (9)

          7/19/2021

          8.00% (L+7.00%, Floor 1.00%)

          7/19/2026

          4,373

          4,288

          4,285

          Common Stock

          7/19/2021

          400,000

          400

          400

          4,688

          4,685

          Watterson Brands, LLC

          (10)

          Facility Management Services

          Secured Debt

          (9)

          12/17/2021

          7.25% (L+6.25%, Floor 1.00%)

          12/17/2026

          25,876

          25,267

          25,267

          Winter Services LLC

          (10)

          Provider of Snow Removal and Ice Management Services

          Secured Debt

          (9)

          11/19/2021

          8.00% (L+7.00%, Floor 1.00%)

          11/19/2026

          10,278

          10,018

          10,061

          Xenon Arc, Inc.

          (10)

          Tech-enabled Distribution Services to Chemicals and Food Ingredients Primary Producers

          Secured Debt

          (9)

          12/17/2021

          6.75% (L+6.00%, Floor 0.75%)

          12/17/2026

          38,600

          37,423

          37,423

          YS Garments, LLC

          (11)

          Designer and Provider of Branded Activewear

          Secured Debt

          (9)

          8/22/2018

          6.50% (L+5.50%, Floor 1.00%)

          8/9/2024

          13,034

          12,967

          12,578

          Subtotal Non-Control/Non-Affiliate Investments (85.2% of net assets at fair value)

          $

          1,573,110

          $

          1,523,360

          Total Portfolio Investments,December 31, 2021 (199.2% of net assets at fair value)

          $

          3,259,246

          $

          3,561,831

          105


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          (1)

          All investments are Lower Middle Market portfolio investments, unless otherwise noted. See Note C for a description of Lower Middle Market portfolio investments. All of the Company’s investments, unless otherwise noted, are encumbered either as security for the Company’s Credit Facility or in support of the SBA-guaranteed debentures issued by the Funds.

          (2)

          Debt investments are income producing, unless otherwise noted. Equity and warrants are non-income producing, unless otherwise noted.

          (3)

          See Note C and Schedule 12-14 for a summary of geographic location of portfolio companies.

          (4)

          Principal is net of repayments. Cost is net of repayments and accumulated unearned income.

          (5)

          Control investments are defined by the 1940 Act, as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

          (6)

          Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments.

          (7)

          Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

          (8)

          Income producing through dividends or distributions.

          (9)

          Index based floating interest rate is subject to contractual minimum interest rate. A majority of the variable rate loans in the Company’s investment portfolio bear interest at a rate that may be determined by reference to either LIBOR or an alternate Base Rate (commonly based on the Federal Funds Rate or the Prime Rate), which typically resets semi-annually, quarterly, or monthly at the borrower’s option. The borrower may also elect to have multiple interest reset periods for each loan. For each such loan, the Company has provided the weighted average annual stated interest rate in effect at December 31, 2021. As noted in this schedule, 67% of the loans (based on the par amount) contain LIBOR floors which range between 0.50% and 2.00%, with a weighted-average LIBOR floor of approximately 1.06%.

          (10)

          Private Loan portfolio investment. See Note C for a description of Private Loan portfolio investments.

          (11)

          Middle Market portfolio investment. See Note C for a description of Middle Market portfolio investments.

          (12)

          Other Portfolio investment. See Note C for a description of Other Portfolio investments.

          (13)

          Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.

          (14)

          Non-accrual and non-income producing investment.

          (15)

          All of the Company’s portfolio investments are generally subject to restrictions on resale as “restricted securities.”

          (16)

          External Investment Manager. Investment is not encumbered as security for the Company's Credit Facility or in support of the SBA-guaranteed debentures issued by the Funds.

          (17)

          Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.

          (18)

          Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C for further discussion.

          (19)

          PIK interest income and cumulative dividend income represent income not paid currently in cash.

          (20)

          All portfolio company headquarters are based in the United States, unless otherwise noted.

          (21)

          Portfolio company headquarters are located outside of the United States.

          (22)

          In connection with the Company's debt investment in Staples Canada ULC and in an attempt to mitigate any potential adverse change in foreign exchange rates during the term of the Company's investment, the Company maintains a forward foreign currency contract with Cadence Bank to lend $21.4 million Canadian Dollars and receive $16.9 million U.S. Dollars with a settlement date of September 14, 2022. The unrealized depreciation on the forward foreign currency contract was not significant as of December 31, 2021.

          (23)

          The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with

          106


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2021

          (dollars in thousands)

          respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 7.25% (Floor 1.25%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.

          (24)

          Investment date represents the date of initial investment in the security position.

          (25)

          Warrants are presented in equivalent shares with a strike price of $10.92 per share.

          (26)

          Warrants are presented in equivalent units with a strike price of $14.28 per unit.

          (27)

          Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit.

          (28)

          Warrants are presented in equivalent shares with a strike price of $0.001 per share.

          (29)

          Warrants are presented in equivalent units with a strike price of $1.50 per unit.

          (30)

          Shares/Units represent ownership in an underlying Real Estate or HoldCo entity.

          (31)

          Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated.

          (32)

          Portfolio company is in a bankruptcy process and, as such, the maturity date of our debt investment in this portfolio company will not be finally determined until such process is complete. As noted in footnote (14), our debt investment in this portfolio company is on non-accrual status.

          (33)

          The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 7.96% (Floor 1.00%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.

          (34)

          Short-term portfolio investments. See Note C for a description of short-term portfolio investments.

          (35)

          The security has an effective contractual interest rate of 2.00% PIK + L+6.50%, Floor 1.00%, but the issuer may, in its discretion, elect to pay the PIK interest in cash. The rate presented represents the effective current yield based on actual payments received during the period.

          (36)

          Delayed draw term loan facility permits the borrower to make an interest rate election on each new tranche of borrowings under the facility. The rate presented represents a weighted-average rate for borrowings under the facility. As of December 31, 2021, borrowings under the loan facility bear interest at L+6.00% or Prime+5.00%.

          107


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Control Investments (5)

          ASC Interests, LLC

          Recreational and Educational Shooting Facility

          Secured Debt

          8/1/2013

          13.00%

          7/31/2022

          $

          1,750

          $

          1,715

          $

          1,715

          Member Units

          8/1/2013

          1,500

          1,500

          1,120

          3,215

          2,835

          Analytical Systems Keco, LLC

          Manufacturer of Liquid and Gas Analyzers

          Secured Debt

          (9)

          8/16/2019

          12.00% (L+10.00%, Floor 2.00%)

          8/16/2024

          5,155

          4,874

          4,874

          Preferred Member Units

          8/16/2019

          3,200

          3,200

          3,200

          Warrants

          (27)

          8/16/2019

          420

          8/16/2029

          316

          10

          8,390

          8,084

          ATS Workholding, LLC

          (10)

          Manufacturer of Machine Cutting Tools and Accessories

          Secured Debt

          (14)

          11/16/2017

          5.00%

          11/16/2021

          4,982

          4,824

          3,347

          Preferred Member Units

          11/16/2017

          3,725,862

          3,726

          -

          8,550

          3,347

          Project BarFly, LLC

          (10)

          Casual Restaurant Group

          Secured Debt

          10/15/2020

          7.00%

          10/31/2024

          343

          343

          343

          Member Units

          10/26/2020

          37

          1,584

          1,584

          1,927

          1,927

          Bolder Panther Group, LLC

          Consumer Goods and Fuel Retailer

          Secured Debt

          (9)

          12/31/2020

          10.50% (L+9.00%, Floor 1.50%)

          12/31/2025

          27,500

          27,225

          27,225

          Class A Preferred Member Units

          (30)

          12/31/2020

          14.00%

          10,194

          10,194

          Class B Preferred Member Units

          (30)

          12/31/2020

          140,000

          8.00%

          14,000

          14,000

          51,419

          51,419

          Bond-Coat, Inc.

          Casing and Tubing Coating Services

          Common Stock

          12/28/2012

          57,508

          6,350

          2,040

          Brewer Crane Holdings, LLC

          Provider of Crane Rental and Operating Services

          Secured Debt

          (9)

          1/9/2018

          11.00% (L+10.00%, Floor 1.00%)

          1/9/2023

          8,556

          8,513

          8,513

          Preferred Member Units

          (8)

          1/9/2018

          2,950

          4,280

          5,850

          12,793

          14,363

          Bridge Capital Solutions Corporation

          Financial Services and Cash Flow Solutions Provider

          Secured Debt

          7/25/2016

          13.00%

          12/11/2024

          8,813

          8,403

          8,403

          Warrants

          (27)

          7/25/2016

          82

          7/25/2026

          2,132

          3,220

          Secured Debt

          (30)

          7/25/2016

          13.00%

          12/11/2024

          1,000

          998

          998

          Preferred Member Units

          (8) (30)

          7/25/2016

          17,742

          1,000

          1,000

          12,533

          13,621

          Café Brazil, LLC

          Casual Restaurant Group

          Member Units

          (8)

          6/9/2006

          1,233

          1,742

          2,030

          108


          MAIN STREET CAPITAL CORPORATION


          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          California Splendor Holdings LLC

          Processor of Frozen Fruits

          Secured Debt

          (9)

          3/30/2018

          9.00% (L+8.00%, Floor 1.00%)

          3/30/2023

          8,100

          8,014

          8,043

          Secured Debt

          (9)

          3/30/2018

          11.00% (L+10.00%, Floor 1.00%)

          3/30/2023

          28,000

          27,854

          27,789

          Preferred Member Units

          (8)

          7/31/2019

          6,725

          8,255

          8,255

          Preferred Member Units

          (8)

          3/30/2018

          6,157

          10,775

          6,241

          54,898

          50,328

          CBT Nuggets, LLC

          Produces and Sells IT Training Certification Videos

          Member Units

          (8)

          6/1/2006

          416

          1,300

          46,080

          Centre Technologies Holdings, LLC

          Provider of IT Hardware Services and Software Solutions

          Secured Debt

          (9)

          1/4/2019

          12.00% (L+10.00%, Floor 2.00%)

          1/4/2024

          11,628

          11,549

          11,549

          Preferred Member Units

          1/4/2019

          12,696

          5,840

          6,160

          17,389

          17,709

          Chamberlin Holding LLC

          Roofing and Waterproofing Specialty Contractor

          Secured Debt

          (9)

          2/26/2018

          9.00% (L+8.00%, Floor 1.00%)

          2/26/2023

          15,212

          15,136

          15,212

          Member Units

          (8)

          2/26/2018

          4,347

          11,440

          28,070

          Member Units

          (8) (30)

          11/2/2018

          1,047,146

          1,322

          1,270

          27,898

          44,552

          Charps, LLC

          Pipeline Maintenance and Construction

          Unsecured Debt

          (19)

          8/26/2020

          10.00% (8.67% Cash, 1.33% PIK)

          1/31/2024

          9,388

          7,641

          8,475

          Secured Debt

          6/5/2019

          15.00%

          6/5/2022

          669

          669

          669

          Preferred Member Units

          (8)

          2/3/2017

          1,600

          400

          10,520

          8,710

          19,664

          Clad-Rex Steel, LLC

          Specialty Manufacturer of Vinyl-Clad Metal

          Secured Debt

          (9)

          12/20/2016

          10.50% (L+9.50%, Floor 1.00%)

          12/20/2021

          10,880

          10,853

          10,853

          Member Units

          (8)

          12/20/2016

          717

          7,280

          8,610

          Secured Debt

          (30)

          12/20/2016

          10.00%

          12/20/2036

          1,111

          1,100

          1,100

          Member Units

          (30)

          12/20/2016

          800

          210

          530

          19,443

          21,093

          CMS Minerals Investments

          Oil & Gas Exploration & Production

          Member Units

          (30)

          4/1/2016

          100

          2,179

          1,624

          Cody Pools, Inc.

          Designer of Residential and Commercial Pools

          Secured Debt

          (9)

          3/6/2020

          12.25% (L+10.50%, Floor 1.75%)

          3/6/2025

          14,216

          14,092

          14,216

          Preferred Member Units

          3/6/2020

          587

          8,317

          14,940

          22,409

          29,156

          CompareNetworks Topco, LLC

          Internet Publishing and Web Search Portals

          Secured Debt

          (9)

          1/29/2019

          12.00% (L+11.00%, Floor 1.00%)

          1/29/2024

          7,954

          7,910

          7,953

          109


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Preferred Member Units

          (8)

          1/29/2019

          1,975

          1,975

          6,780

          9,885

          14,733

          Copper Trail Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (CTMH, LP)

          (31)

          7/17/2017

          38.8%

          747

          747

          Datacom, LLC

          Technology and Telecommunications Provider

          Secured Debt

          (14)

          5/30/2014

          8.00%

          5/31/2021

          1,800

          1,800

          1,615

          Secured Debt

          (14) (19)

          5/30/2014

          10.50% PIK

          5/31/2021

          12,507

          12,475

          10,531

          Class A Preferred Member Units

          5/30/2014

          -

          1,294

          -

          Class B Preferred Member Units

          5/30/2014

          6,453

          6,030

          -

          21,599

          12,146

          Digital Products Holdings LLC

          Designer and Distributor of Consumer Electronics

          Secured Debt

          (9)

          4/1/2018

          11.00% (L+10.00%, Floor 1.00%)

          4/1/2023

          18,173

          18,077

          18,077

          Preferred Member Units

          (8)

          4/1/2018

          3,857

          9,501

          9,835

          27,578

          27,912

          Direct Marketing Solutions, Inc.

          Provider of Omni-Channel Direct Marketing Services

          Secured Debt

          (9)

          2/13/2018

          12.00% (L+11.00%, Floor 1.00%)

          2/13/2023

          15,090

          15,007

          15,007

          Preferred Stock

          2/13/2018

          8,400

          8,400

          19,380

          23,407

          34,387

          Gamber-Johnson Holdings, LLC ("GJH")

          Manufacturer of Ruggedized Computer Mounting Systems

          Secured Debt

          (9)

          6/24/2016

          9.00% (L+7.00%, Floor 2.00%)

          6/24/2021

          19,838

          19,807

          19,838

          Member Units

          (8)

          6/24/2016

          8,619

          14,844

          52,490

          34,651

          72,328

          Garreco, LLC

          Manufacturer and Supplier of Dental Products

          Secured Debt

          (9)

          7/15/2013

          9.00% (L+8.00%, Floor 1.00%, Ceiling 1.50%)

          1/31/2021

          4,519

          4,519

          4,519

          Member Units

          7/15/2013

          1,200

          1,200

          1,410

          5,719

          5,929

          GRT Rubber Technologies LLC ("GRT")

          Manufacturer of Engineered Rubber Products

          Secured Debt

          12/19/2014

          7.15% (L+7.00%)

          12/31/2023

          16,775

          16,775

          16,775

          Member Units

          (8)

          12/19/2014

          5,879

          13,065

          44,900

          29,840

          61,675

          Gulf Manufacturing, LLC

          Manufacturer of Specialty Fabricated Industrial Piping Products

          Member Units

          (8)

          8/31/2007

          438

          2,980

          4,510

          Gulf Publishing Holdings, LLC

          Energy Industry Focused Media and Publishing

          Secured Debt

          (9) (17) (19)

          9/29/2017

          10.50% (5.25% Cash, 5.25% PIK)

          9/30/2020

          250

          250

          250

          110


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          (L+9.50%, Floor 1.00%)

          Secured Debt

          (19)

          4/29/2016

          12.50% (6.25% Cash, 6.25% PIK)

          4/29/2021

          13,147

          13,135

          12,044

          Member Units

          4/29/2016

          3,681

          3,681

          -

          17,066

          12,294

          Harris Preston Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (2717 MH, L.P.)

          (31)

          10/1/2017

          49.3%

          2,599

          2,702

          LP Interests (2717 HPP-MS, L.P.)

          (31)

          12/28/2020

          49.3%

          250

          250

          2,849

          2,952

          Harrison Hydra-Gen, Ltd.

          Manufacturer of Hydraulic Generators

          Common Stock

          (8)

          6/4/2010

          107,456

          718

          5,450

          Jensen Jewelers of Idaho, LLC

          Retail Jewelry Store

          Secured Debt

          (9)

          11/14/2006

          10.00% (Prime+6.75%, Floor 2.00%)

          11/14/2023

          3,400

          3,374

          3,400

          Member Units

          (8)

          11/14/2006

          627

          811

          7,620

          4,185

          11,020

          J&J Services, Inc.

          Provider of Dumpster and Portable Toilet Rental Services

          Secured Debt

          10/31/2019

          11.50%

          10/31/2024

          12,800

          12,697

          12,800

          Preferred Stock

          10/31/2019

          2,814

          7,085

          12,680

          19,782

          25,480

          KBK Industries, LLC

          Manufacturer of Specialty Oilfield and Industrial Products

          Member Units

          (8)

          1/23/2006

          325

          783

          13,200

          Kickhaefer Manufacturing Company, LLC

          Precision Metal Parts Manufacturing

          Secured Debt

          10/31/2018

          11.50%

          10/31/2023

          22,415

          22,269

          22,269

          Member Units

          10/31/2018

          581

          12,240

          12,240

          Secured Debt

          10/31/2018

          9.00%

          10/31/2048

          3,948

          3,909

          3,909

          Member Units

          (8) (30)

          10/31/2018

          800

          992

          1,160

          39,410

          39,578

          Market Force Information, LLC

          Provider of Customer Experience Management Services

          Secured Debt

          (9)

          7/28/2017

          12.00% (L+11.00%, Floor 1.00%)

          7/28/2023

          1,600

          1,600

          1,600

          Secured Debt

          (14) (19)

          7/28/2017

          12.00% PIK

          7/28/2023

          26,079

          25,952

          13,562

          Member Units

          7/28/2017

          743,921

          16,642

          -

          44,194

          15,162

          MH Corbin Holding LLC

          Manufacturer and Distributor of Traffic Safety Products

          Secured Debt

          (19)

          8/31/2015

          13.00% (10.00% Cash, 3.00% PIK)

          3/31/2022

          8,570

          8,527

          8,280

          Preferred Member Units

          3/15/2019

          66,000

          4,400

          2,370

          Preferred Member Units

          9/1/2015

          4,000

          6,000

          -

          18,927

          10,650

          MSC Adviser I, LLC

          (16)

          Third Party Investment
          Advisory Services

          Member Units

          (8) (31)

          11/22/2013

          29,500

          116,760

          Mystic Logistics Holdings, LLC

          Logistics and Distribution Services

          111


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Provider for Large Volume Mailers

          Secured Debt

          8/18/2014

          12.00%

          1/17/2022

          6,733

          6,723

          6,723

          Common Stock

          (8)

          8/18/2014

          5,873

          2,720

          8,990

          9,443

          15,713

          NAPCO Precast, LLC

          Precast Concrete Manufacturing

          Member Units

          (8)

          1/31/2008

          2,955

          2,975

          16,100

          Nebraska Vet AcquireCo, LLC (NVS)

          Mixed-Animal Veterinary and Animal Health Product Provider

          Secured Debt

          12/31/2020

          12.00%

          12/31/2025

          10,500

          10,395

          10,395

          Preferred Member Units

          12/31/2020

          6,500

          6,500

          6,500

          16,895

          16,895

          NexRev LLC

          Provider of Energy Efficiency Products & Services

          Secured Debt

          2/28/2018

          11.00%

          2/28/2023

          17,097

          17,016

          16,726

          Preferred Member Units

          (8)

          2/28/2018

          86,400,000

          6,880

          1,470

          23,896

          18,196

          NRI Clinical Research, LLC

          Clinical Research Service Provider

          Secured Debt

          9/8/2011

          9.00%

          6/8/2022

          5,620

          5,572

          5,620

          Warrants

          (27)

          9/8/2011

          251,723

          6/8/2027

          252

          1,490

          Member Units

          (8)

          9/8/2011

          1,454,167

          765

          5,600

          6,589

          12,710

          NRP Jones, LLC

          Manufacturer of Hoses, Fittings and Assemblies

          Secured Debt

          12/21/2017

          12.00%

          3/20/2023

          2,080

          2,080

          2,080

          Member Units

          (8)

          12/22/2011

          65,962

          3,717

          2,821

          5,797

          4,901

          NuStep, LLC

          Designer, Manufacturer and Distributor of Fitness Equipment

          Secured Debt

          1/31/2017

          12.00%

          1/31/2022

          17,240

          17,193

          17,193

          Preferred Member Units

          1/31/2017

          406

          10,200

          10,780

          27,393

          27,973

          OMi Holdings, Inc.

          Manufacturer of Overhead Cranes

          Common Stock

          (8)

          4/1/2008

          1,500

          1,080

          20,380

          Pearl Meyer Topco LLC

          Provider of Executive Compensation Consulting Services

          Secured Debt

          4/27/2020

          12.00%

          4/27/2025

          37,513

          37,202

          37,202

          Member Units

          (8)

          4/27/2020

          13,800

          13,000

          15,940

          50,202

          53,142

          Televerde, LLC (Pegasus Research Group, LLC)

          Provider of Telemarketing and Data Services

          Member Units

          (8)

          1/6/2011

          460

          1,290

          8,830

          PPL RVs, Inc.

          Recreational Vehicle Dealer

          Secured Debt

          (9)

          11/15/2016

          7.50% (L+7.00%, Floor 0.50%)

          11/15/2022

          11,855

          11,781

          11,806

          Common Stock

          (8)

          6/10/2010

          2,000

          2,150

          11,500

          13,931

          23,306

          112


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Principle Environmental, LLC (d/b/a TruHorizon Environmental Solutions)

          Noise Abatement Service Provider

          Secured Debt

          2/1/2011

          13.00%

          4/30/2023

          6,397

          6,335

          6,397

          Preferred Member Units

          (8)

          2/1/2011

          19,631

          4,600

          10,500

          Warrants

          (27)

          2/1/2011

          1,018

          1/31/2021

          1,200

          870

          12,135

          17,767

          Quality Lease Service, LLC

          Provider of Rigsite Accommodation Unit Rentals and Related Services

          Member Units

          6/8/2015

          1,000

          11,063

          4,460

          River Aggregates, LLC

          Processor of Construction Aggregates

          Member Units

          (30)

          3/30/2011

          1,500

          369

          3,240

          Tedder Industries, LLC

          Manufacturer of Firearm Holsters and Accessories

          Secured Debt

          8/31/2018

          12.00%

          8/31/2023

          16,400

          16,301

          16,301

          Preferred Member Units

          8/31/2018

          479

          8,136

          8,136

          24,437

          24,437

          Trantech Radiator Topco, LLC

          Transformer Cooling Products and Services

          Secured Debt

          5/31/2019

          12.00%

          5/31/2024

          8,720

          8,644

          8,644

          Common Stock

          (8)

          5/31/2019

          615

          4,655

          6,030

          13,299

          14,674

          UnionRock Energy Fund II, LP

          (12) (13)

          Oil & Gas Exploration & Production

          LP Interests

          (31)

          6/15/2020

          49.6%

          2,894

          2,894

          Vision Interests, Inc.

          Manufacturer / Installer of Commercial Signage

          Secured Debt

          (17)

          6/5/2007

          13.00%

          9/30/2019

          2,028

          2,028

          2,028

          Series A Preferred Stock

          12/23/2011

          3,000,000

          3,000

          3,160

          5,028

          5,188

          Ziegler's NYPD, LLC

          Casual Restaurant Group

          Secured Debt

          6/1/2015

          12.00%

          10/1/2022

          625

          625

          625

          Secured Debt

          10/1/2008

          6.50%

          10/1/2022

          1,000

          1,000

          979

          Secured Debt

          10/1/2008

          14.00%

          10/1/2022

          2,750

          2,750

          2,750

          Preferred Member Units

          7/1/2015

          10,072

          2,834

          1,780

          Warrants

          (27)

          6/30/2015

          587

          10/1/2025

          600

          -

          7,809

          6,134

          Subtotal Control Investments (73.5% of net assets at fair value)

          $

          831,490

          $

          1,113,725

          113


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Affiliate Investments (6)

          AAC Holdings, Inc.

          (11)

          Substance Abuse Treatment Service Provider

          Secured Debt

          (19)

          12/11/2020

          18.00% (10.00% Cash, 8.00% PIK)

          6/25/2025

          9,406

          9,187

          9,187

          Common Stock

          12/11/2020

          593,928

          3,148

          3,148

          Warrants

          (27)

          12/11/2020

          554,353

          12/11/2025

          -

          2,938

          12,335

          15,273

          AFG Capital Group, LLC

          Provider of Rent-to-Own Financing Solutions and Services

          Secured Debt

          4/25/2019

          10.00%

          5/25/2022

          491

          491

          491

          Preferred Member Units

          11/7/2014

          186

          1,200

          5,810

          1,691

          6,301

          American Trailer Rental Group LLC

          Provider of Short-term Trailer and Container Rental

          Member Units

          (30)

          6/7/2017

          73,493

          8,596

          16,010

          BBB Tank Services, LLC

          Maintenance, Repair and Construction Services to the Above-Ground Storage Tank Market

          Unsecured Debt

          (9)

          4/8/2016

          12.00% (L+11.00%, Floor 1.00%)

          4/8/2021

          4,800

          4,773

          4,722

          Preferred Stock (non-voting)

          (8) (19)

          12/17/2018

          15.00% PIK

          151

          151

          Member Units

          4/8/2016

          800,000

          800

          280

          5,724

          5,153

          Boccella Precast Products LLC

          Manufacturer of Precast Hollow Core Concrete

          Member Units

          (8)

          6/30/2017

          2,160,000

          2,256

          6,040

          Buca C, LLC

          Casual Restaurant Group

          Secured Debt

          (9) (17)

          6/30/2015

          10.25% (L+9.25%, Floor 1.00%)

          6/30/2020

          19,004

          19,004

          14,256

          Preferred Member Units

          (8) (19)

          6/30/2015

          6

          6.00% PIK

          4,770

          -

          23,774

          14,256

          CAI Software LLC

          Provider of Specialized Enterprise Resource Planning Software

          Secured Debt

          10/10/2014

          12.50%

          12/7/2023

          47,474

          47,133

          47,474

          Member Units

          (8)

          10/10/2014

          77,960

          2,095

          7,190

          49,228

          54,664

          Chandler Signs Holdings, LLC

          (10)

          Sign Manufacturer

          Class A Units

          1/4/2016

          1,500,000

          1,500

          1,460

          Charlotte Russe, Inc

          (11)

          Fast-Fashion Retailer to Young Women

          Common Stock

          2/2/2018

          19,041

          3,141

          -

          Classic H&G Holdings, LLC

          Provider of Engineered Packaging Solutions

          Secured Debt

          3/12/2020

          12.00%

          3/12/2025

          24,800

          24,583

          24,800

          Preferred Member Units

          (8)

          3/12/2020

          154

          5,760

          9,510

          30,343

          34,310

          114


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Congruent Credit Opportunities Funds

          (12) (13)

          Investment Partnership

          LP Interests (Congruent Credit Opportunities Fund
          II, LP)

          (31)

          1/24/2012

          19.8%

          4,449

          94

          LP Interests (Congruent Credit Opportunities Fund
          III, LP)

          (8) (31)

          2/4/2015

          17.4%

          11,741

          11,540

          16,190

          11,634

          Copper Trail Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (Copper Trail Energy Fund I, LP)

          (8) (31)

          7/17/2017

          12.4%

          2,161

          1,782

          Dos Rios Partners

          (12) (13)

          Investment Partnership

          LP Interests (Dos Rios Partners, LP)

          (31)

          4/25/2013

          20.2%

          6,605

          5,417

          LP Interests (Dos Rios Partners - A, LP)

          (31)

          4/25/2013

          6.4%

          2,097

          1,720

          8,702

          7,137

          East Teak Fine Hardwoods, Inc.

          Distributor of Hardwood Products

          Common Stock

          4/13/2006

          6,250

          480

          300

          EIG Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (EIG Global Private Debt Fund-A, L.P.)

          (8) (31)

          11/6/2015

          11.1%

          739

          526

          Freeport Financial Funds

          (12) (13)

          Investment Partnership

          LP Interests (Freeport Financial SBIC Fund LP)

          (31)

          3/23/2015

          9.3%

          5,974

          5,264

          LP Interests (Freeport First Lien Loan Fund III LP)

          (8) (31)

          7/31/2015

          6.0%

          10,785

          10,321

          16,759

          15,585

          Harris Preston Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (HPEP 3, L.P.)

          (31)

          8/9/2017

          8.2%

          3,071

          3,258

          Hawk Ridge Systems, LLC

          (13)

          Value-Added Reseller of Engineering Design and Manufacturing Solutions

          Secured Debt

          12/2/2016

          11.00%

          12/2/2023

          18,400

          18,366

          18,400

          Preferred Member Units

          (8)

          12/2/2016

          226

          2,850

          8,030

          Preferred Member Units

          (30)

          12/2/2016

          226

          150

          420

          21,366

          26,850

          Houston Plating and Coatings, LLC

          Provider of Plating and Industrial Coating Services

          Unsecured Convertible Debt

          5/1/2017

          8.00%

          5/1/2022

          3,000

          3,000

          2,900

          Member Units

          (8)

          1/8/2003

          322,297

          2,352

          5,080

          115


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          5,352

          7,980

          I-45 SLF LLC

          (12) (13)

          Investment Partnership

          Member Units (Fully diluted 20.0%; 24.40% profits
          interest) (8)

          (8) (31)

          10/20/2015

          20.00% Fully Diluted, 24.40% Profits Interest

          20,200

          15,789

          L.F. Manufacturing Holdings, LLC

          (10)

          Manufacturer of Fiberglass Products

          Preferred Member Units (non-voting)

          (8) (19)

          1/1/2019

          14.00% PIK

          93

          93

          Member Units

          12/23/2013

          2,179,001

          2,019

          2,050

          2,112

          2,143

          OnAsset Intelligence, Inc.

          Provider of Transportation Monitoring / Tracking Products and Services

          Secured Debt

          (19)

          5/20/2014

          12.00% PIK

          6/30/2021

          830

          830

          830

          Secured Debt

          (19)

          3/21/2014

          12.00% PIK

          6/30/2021

          846

          846

          846

          Secured Debt

          (19)

          5/10/2013

          12.00% PIK

          6/30/2021

          1,823

          1,823

          1,823

          Secured Debt

          (19)

          4/18/2011

          12.00% PIK

          6/30/2021

          3,802

          3,802

          3,802

          Preferred Stock

          4/18/2011

          912

          1,981

          -

          Warrants

          (27)

          4/18/2011

          5,333

          4/18/2021

          1,919

          -

          Unsecured Debt

          (19)

          6/5/2017

          10.00% PIK

          6/30/2021

          64

          64

          64

          11,265

          7,365

          PCI Holding Company, Inc.

          Manufacturer of Industrial Gas Generating Systems

          Preferred Stock

          4/25/2017

          1,500,000

          3,927

          4,130

          Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)

          Provider of Rigsite Accommodation Unit Rentals and Related Services

          Secured Debt

          (14) (32)

          6/30/2015

          12.00%

          1/8/2018

          30,369

          29,865

          -

          Preferred Member Units

          1/8/2013

          250

          2,500

          -

          32,365

          -

          Salado Stone Holdings, LLC

          (10)

          Limestone and Sandstone Dimension Cut Stone Mining Quarries

          Class A Preferred Units

          (30)

          6/27/2016

          2,000,000

          2,000

          1,250

          Slick Innovations, LLC

          Text Message Marketing Platform

          9/13/2018

          Secured Debt

          13.00%

          9/13/2023

          5,720

          5,605

          5,719

          Common Stock

          70,000

          700

          1,330

          Warrants

          (27)

          18,084

          9/13/2028

          181

          360

          6,486

          7,409

          SI East, LLC

          Rigid Industrial Packaging Manufacturing

          Secured Debt

          9/13/2018

          9.50%

          8/31/2023

          32,963

          32,760

          32,962

          Preferred Member Units

          (8)

          9/13/2018

          157

          6,000

          9,780

          38,760

          42,742

          Superior Rigging & Erecting Co.

          Provider of Steel Erection, Crane Rental & Rigging Services

          Secured Debt

          8/31/2020

          12.00%

          8/31/2025

          21,500

          21,298

          21,298

          Preferred Member Units

          8/31/2020

          1,473

          4,500

          4,500

          25,798

          25,798

          116


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          UniTek Global Services, Inc.

          (11)

          Provider of Outsourced Infrastructure Services

          Secured Debt

          (9)

          10/15/2018

          7.50% (L+6.50% Floor 1.00%)

          8/20/2024

          452

          450

          404

          Secured Debt

          (9)

          8/27/2018

          7.50% (L+6.50% Floor 1.00%)

          8/20/2024

          2,256

          2,237

          2,022

          Preferred Stock

          (8) (19)

          8/29/2019

          1,133,102

          20.00% PIK

          1,441

          2,832

          Preferred Stock

          (8) (19)

          8/21/2018

          1,521,122

          20.00% PIK

          2,188

          375

          Preferred Stock

          (19)

          1/15/2015

          2,281,682

          19.00% PIK

          3,667

          -

          Preferred Stock

          (19)

          6/30/2017

          4,336,866

          13.50% PIK

          7,924

          -

          Common Stock

          4/1/2020

          945,507

          -

          -

          17,907

          5,633

          Universal Wellhead Services Holdings, LLC

          (10)

          Provider of Wellhead Equipment, Designs, and Personnel to the Oil & Gas Industry

          Preferred Member Units

          (19) (30)

          12/7/2016

          716,949

          14.00% PIK

          1,032

          -

          Member Units

          (30)

          12/7/2016

          4,000,000

          4,000

          -

          5,032

          -

          Volusion, LLC

          Provider of Online Software-as-a-Service eCommerce Solutions

          Secured Debt

          (17)

          1/26/2015

          11.50%

          1/26/2020

          20,234

          20,234

          19,242

          Unsecured Convertible Debt

          5/16/2018

          8.00%

          11/16/2023

          409

          409

          291

          Preferred Member Units

          1/26/2015

          4,876,670

          14,000

          5,990

          Warrants

          (27)

          1/26/2015

          1,831,355

          1/26/2025

          2,576

          -

          37,219

          25,523

          Subtotal Affiliate Investments (24.2% of net assets at fair value)

          $

          416,479

          $

          366,301

          117


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Non-Control/Non-Affiliate Investments (7)

          Acousti Engineering Company of Florida, Inc.

          (10)

          Interior Subcontractor Providing Acoustical Walls and Ceilings

          Secured Debt

          (9)

          11/2/2020

          10.00% (L+8.50%, Floor 1.50%)

          10/31/2025

          13,000

          12,858

          12,858

          Adams Publishing Group, LLC

          (10)

          Local Newspaper Operator

          Secured Debt

          (9)

          11/19/2015

          8.75% (L+7.00%, Floor 1.75%)

          7/3/2023

          5,863

          5,745

          5,813

          Secured Debt

          (9)

          11/19/2015

          8.75% (L+7.00%, Floor 1.75%)

          7/3/2023

          5,745

          5,813

          ADS Tactical, Inc.

          (10)

          Value-Added Logistics and Supply Chain Provider to the Defense Industry

          Secured Debt

          (9)

          3/7/2017

          7.00% (L+6.25%, Floor 0.75%)

          7/26/2023

          19,633

          19,529

          19,633

          Aethon United BR LP

          (10)

          Oil & Gas Exploration & Production

          Secured Debt

          (9)

          9/8/2017

          7.75% (L+6.75%, Floor 1.00%)

          9/8/2023

          9,750

          9,659

          9,544

          Affordable Care Holding Corp.

          (10)

          Dental Support Organization

          Secured Debt

          (9)

          5/9/2019

          5.75% (L+4.75%, Floor 1.00%)

          10/22/2022

          14,246

          14,066

          14,044

          ALKU, LLC.

          (11)

          Specialty National Staffing Operator

          Secured Debt

          10/18/2019

          5.75% (L+5.50%)

          7/29/2026

          9,466

          9,385

          9,478

          American Nuts, LLC

          (10)

          Roaster, Mixer and Packager of Bulk Nuts and Seeds

          Secured Debt

          (9)

          12/21/2018

          9.00% (L+8.00%, Floor 1.00%)

          4/10/2023

          1,161

          1,155

          1,157

          Secured Debt

          (9)

          4/10/2018

          9.00% (L+8.00%, Floor 1.00%)

          4/10/2023

          10,969

          10,799

          10,954

          11,954

          12,111

          American Teleconferencing Services, Ltd.

          (11)

          Provider of Audio Conferencing and Video Collaboration Solutions

          Secured Debt

          (9)

          5/19/2016

          7.50% (L+6.50%, Floor 1.00%)

          6/8/2023

          17,358

          16,634

          8,071

          APTIM Corp.

          (11)

          Engineering, Construction & Procurement

          Secured Debt

          8/17/2018

          7.75%

          6/15/2025

          12,452

          11,063

          9,734

          Arcus Hunting LLC

          (10)

          Manufacturer of Bowhunting and Archery Products and Accessories

          Secured Debt

          (9)

          1/6/2015

          11.00% (L+10.00%, Floor 1.00%)

          3/31/2021

          11,009

          11,009

          11,009

          Arrow International, Inc

          (10)

          Manufacturer and Distributor of Charitable Gaming Supplies

          Secured Debt

          (9) (23)

          12/21/2020

          9.23% (L+7.98%, Floor 1.25%)

          12/21/2025

          10,000

          9,901

          9,901

          118


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          ASC Ortho Management Company, LLC

          (10)

          Provider of Orthopedic Services

          Secured Debt

          (9)

          8/31/2018

          8.50% (L+7.50%, Floor 1.00%)

          8/31/2023

          5,206

          5,148

          5,149

          Secured Debt

          (19)

          8/31/2018

          13.25% PIK

          12/1/2023

          2,116

          2,091

          2,116

          7,239

          7,265

          ATX Networks Corp.

          (11) (13) (21)

          Provider of Radio Frequency Management Equipment

          Secured Debt

          (9) (19)

          6/30/2015

          8.75% (7.25% Cash, 1.50% PIK) (1.50% PIK + L+6.25%, Floor 1.00%)

          12/31/2023

          13,402

          13,342

          12,263

          Berry Aviation, Inc.

          (10)

          Charter Airline Services

          Secured Debt

          (19)

          7/6/2018

          12.00% (10.50% Cash, 1.5% PIK)

          1/6/2024

          4,624

          4,595

          4,624

          Preferred Member Units

          (8) (19) (30)

          7/6/2018

          122,416

          16.00% PIK

          145

          145

          Preferred Member Units

          (19) (30)

          7/6/2018

          1,548,387

          8.00% PIK

          1,671

          904

          6,411

          5,673

          BigName Commerce, LLC

          (10)

          Provider of Envelopes and Complimentary Stationery Products

          Secured Debt

          (9)

          5/11/2017

          8.25% (L+7.25%, Floor 1.00%)

          5/11/2022

          2,044

          2,037

          2,011

          Binswanger Enterprises, LLC

          (10)

          Glass Repair and Installation Service Provider

          Secured Debt

          (9)

          3/10/2017

          9.50% (L+8.50%, Floor 1.00%)

          3/9/2022

          12,958

          12,798

          12,958

          Member Units

          3/10/2017

          1,050,000

          1,050

          670

          13,848

          13,628

          BLST Operating Company, LLC.

          (11)

          Multi-Channel Retailer of General Merchandise

          Secured Debt

          (9)

          8/28/2020

          10.00% (L+8.50%, Floor 1.50%)

          8/28/2025

          5,879

          5,879

          5,879

          Common Stock

          10/1/2020

          653

          -

          -

          Warrants

          (27)

          10/1/2020

          70

          8/28/2030

          -

          -

          5,879

          5,879

          Brainworks Software, LLC

          (10)

          Advertising Sales and Newspaper Circulation Software

          Secured Debt

          (9) (14) (17)

          8/12/2014

          12.50% (Prime+9.25%, Floor 3.25%)

          7/22/2019

          7,817

          7,817

          5,332

          Brightwood Capital Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (Brightwood Capital Fund III, LP)

          (8) (31)

          7/21/2014

          1.6%

          10,800

          8,459

          LP Interests (Brightwood Capital Fund IV, LP)

          (8) (31)

          10/26/2016

          0.6%

          5,000

          4,745

          15,800

          13,204

          Cadence Aerospace LLC

          (10)

          Aerostructure Manufacturing

          Secured Debt

          (9) (19)

          11/14/2017

          9.50% (4.25% Cash, 5.25% PIK) (5.25%

          11/14/2023

          27,703

          27,484

          26,359

          119


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          PIK + L+3.25%, Floor 1.00%)

          California Pizza Kitchen, Inc.

          (11)

          Casual Restaurant Group

          Secured Debt

          (9)

          11/23/2020

          11.50% (L+10.00%, Floor 1.50%)

          11/23/2024

          7,700

          7,288

          7,315

          Secured Debt

          (9) (19)

          11/23/2020

          13.50% (1.00% Cash, 12.50% PIK) (1.00% Cash, L+11.00% PIK, Floor 1.50%)

          11/23/2024

          2,657

          2,590

          2,524

          Secured Debt

          (9) (19)

          11/23/2020

          15.00% (1.00% Cash, 14.00% PIK) (1.00% Cash, L+12.50% PIK, Floor 1.50%)

          5/23/2025

          2,291

          2,291

          1,833

          Common Stock

          11/23/2020

          169,088

          949

          1,860

          13,118

          13,532

          Central Security Group, Inc.

          (11)

          Security Alarm Monitoring Service Provider

          Secured Debt

          (9)

          10/16/2020

          7.00% (L+6.00%, Floor 1.00%)

          10/16/2025

          6,891

          6,891

          5,823

          Common Stock

          10/16/2020

          329,084

          1,481

          1,645

          8,372

          7,468

          Cenveo Corporation

          (11)

          Provider of Digital Marketing Agency Services

          Secured Debt

          (9)

          9/7/2018

          10.50% (L+9.50%, Floor 1.00%)

          6/7/2023

          5,250

          5,129

          4,909

          Common Stock

          9/7/2018

          177,130

          5,309

          2,613

          10,438

          7,522

          Chisholm Energy Holdings, LLC

          (10)

          Oil & Gas Exploration & Production

          Secured Debt

          (9)

          5/15/2019

          7.75% (L+6.25%, Floor 1.50%)

          5/15/2026

          3,571

          3,498

          3,274

          Clarius BIGS, LLC

          (10)

          Prints & Advertising Film Financing

          Secured Debt

          (14) (17) (19)

          9/23/2014

          15.00% PIK

          1/5/2015

          2,832

          2,832

          31

          Clickbooth.com, LLC

          (10)

          Provider of Digital Advertising Performance Marketing Solutions

          Secured Debt

          (9)

          12/5/2017

          9.50% (L+8.50%, Floor 1.00%)

          1/31/2025

          7,850

          7,750

          7,850

          Construction Supply Investments, LLC

          (10)

          Distribution Platform of Specialty Construction Materials to Professional Concrete and Masonry Contractors

          Member Units

          12/29/2016

          5,637

          8,617

          Copper Trail Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (CTEF I, LP)

          11/3/2020

          375

          -

          67

          Corel Corporation

          (11) (13) (21)

          Publisher of Desktop and Cloud-based Software

          Secured Debt

          7/24/2019

          5.23% (L+5.00%)

          7/2/2026

          19,403

          18,580

          19,124

          Darr Equipment LP

          (10)

          Heavy Equipment Dealer

          Secured Debt

          (19)

          12/26/2017

          12.50% (11.50% Cash, 1.00% PIK)

          6/22/2023

          5,959

          5,959

          5,959

          Warrants

          (29)

          4/15/2014

          915,734

          12/23/2023

          474

          -

          120


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          6,433

          5,959

          Digital River, Inc.

          (11)

          Provider of Outsourced e-Commerce Solutions and Services

          Secured Debt

          (9)

          2/24/2015

          8.00% (L+7.00%, Floor 1.00%)

          2/12/2023

          13,628

          13,422

          13,560

          DTE Enterprises, LLC

          (10)

          Industrial Powertrain Repair and Services

          Secured Debt

          (9)

          4/13/2018

          10.00% (L+8.50%, Floor 1.50%)

          4/13/2023

          9,324

          9,213

          9,004

          Class AA Preferred Member Units (non-voting)

          (8) (19)

          4/13/2018

          10.00% PIK

          951

          951

          Class A Preferred Member Units

          4/13/2018

          776,316

          776

          880

          10,940

          10,835

          Dynamic Communities, LLC

          (10)

          Developer of Business Events and Online Community Groups

          Secured Debt

          (9) (19)

          7/17/2018

          12.50% (6.25% Cash, 6.25% PIK) (L+11.50%, Floor 1.00%)

          7/17/2023

          5,320

          5,256

          4,921

          Eastern Wholesale Fence LLC

          (10)

          Manufacturer and Distributor of Residential and Commercial Fencing Solutions

          Secured Debt

          (9)

          11/19/2020

          7.50%, (L+6.50%, Floor 1.00%)

          10/30/2025

          11,857

          11,523

          11,523

          Echo US Holdings, LLC.

          (10)

          Developer and Manufacturer of PVC and Polypropylene Materials

          Secured Debt

          (9)

          11/12/2019

          7.88% (L+6.25%, Floor 1.63%)

          10/25/2024

          22,190

          22,090

          22,190

          Electronic Transaction Consultants, LLC

          (10)

          Technology Service Provider for Toll Road and Infrastructure Operators

          Secured Debt

          (9)

          7/24/2020

          8.50% (L+7.50%, Floor 1.00%)

          7/24/2025

          10,000

          9,829

          9,829

          EnCap Energy Fund Investments

          (12) (13)

          Investment Partnership

          LP Interests (EnCap Energy Capital Fund VIII, L.P.)

          (31)

          1/22/2015

          0.1%

          3,813

          959

          LP Interests (EnCap Energy Capital Fund VIII Co-
          Investors, L.P.)

          (31)

          1/21/2015

          0.4%

          2,097

          465

          LP Interests (EnCap Energy Capital Fund IX, L.P.)

          (8) (31)

          1/22/2015

          0.1%

          4,366

          1,291

          LP Interests (EnCap Energy Capital Fund X, L.P.)

          (8) (31)

          3/25/2015

          0.1%

          8,720

          6,426

          LP Interests (EnCap Flatrock Midstream Fund II, L.P.)

          (8) (31)

          3/30/2015

          0.8%

          6,706

          2,546

          121


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          LP Interests (EnCap Flatrock Midstream Fund III, L.P.)

          (8) (31)

          3/27/2015

          0.2%

          6,982

          5,793

          32,684

          17,480

          Encino Acquisition Partners Holdings, Inc.

          (11)

          Oil & Gas Exploration & Production

          Secured Debt

          (9)

          11/16/2018

          7.75% (L+6.75%, Floor 1.00%)

          10/29/2025

          9,000

          8,932

          8,297

          EPIC Y-Grade Services, LP

          (11)

          NGL Transportation & Storage

          Secured Debt

          (9)

          6/22/2018

          7.00% (L+6.00%, Floor 1.00%)

          6/30/2027

          6,944

          6,854

          5,799

          Fortna, Inc.

          (10)

          Process, Physical Distribution and Logistics Consulting Services

          Secured Debt

          7/23/2019

          5.15% (L+5.00%)

          4/8/2025

          7,673

          7,553

          7,486

          Fuse, LLC

          (11)

          Cable Networks Operator

          Secured Debt

          6/30/2019

          12.00%

          6/28/2024

          1,810

          1,810

          1,472

          Common Stock

          6/30/2019

          10,429

          256

          -

          2,066

          1,472

          GeoStabilization International (GSI)

          (11)

          Geohazard Engineering Services & Maintenance

          Secured Debt

          1/2/2019

          5.40% (L+5.25%)

          12/19/2025

          11,224

          11,137

          11,196

          GoWireless Holdings, Inc.

          (11)

          Provider of Wireless Telecommunications Carrier Services

          Secured Debt

          (9)

          1/10/2018

          7.50% (L+6.50%, Floor 1.00%)

          12/22/2024

          17,113

          16,988

          16,976

          Grupo Hima San Pablo, Inc.

          (11)

          Tertiary Care Hospitals

          Secured Debt

          (9) (17)

          3/7/2013

          9.25% (L+7.00%, Floor 1.50%)

          4/30/2019

          4,504

          4,504

          3,375

          Secured Debt

          (17)

          3/7/2013

          13.75%

          10/15/2018

          2,055

          2,040

          49

          6,544

          3,424

          GS HVAM Intermediate, LLC

          (10)

          Specialized Food Distributor

          Secured Debt

          (9)

          10/18/2019

          6.75% (L+5.75%, Floor 1.00%)

          10/2/2024

          11,053

          10,952

          11,007

          GS Operating, LLC (Gexpro Services)

          (10)

          Distributor of Industrial and Specialty Parts

          Secured Debt

          (9)

          2/24/2020

          8.00% (L+6.50%, Floor 1.50%)

          2/24/2025

          29,180

          28,692

          28,953

          HDC/HW Intermediate Holdings

          (10)

          Managed Services and Hosting Provider

          Secured Debt

          (9)

          12/21/2018

          8.50% (L+7.50%, Floor 1.00%)

          12/21/2023

          3,474

          3,429

          3,351

          Heartland Dental, LLC

          (10)

          Dental Support Organization

          Secured Debt

          (9)

          9/9/2020

          7.50% (L+6.50%, Floor 1.00%)

          4/30/2025

          14,925

          14,501

          14,501

          Hunter Defense Technologies, Inc.

          (10)

          Provider of Military and Commercial Shelters and Systems

          Secured Debt

          (9)

          3/29/2018

          8.00% (L+7.00%, Floor 1.00%)

          3/29/2023

          35,246

          34,820

          35,246

          122


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          HW Temps LLC

          Temporary Staffing Solutions

          Secured Debt

          3/29/2019

          12.00%

          3/29/2023

          9,801

          9,698

          8,994

          Hyperion Materials & Technologies, Inc.

          (11) (13)

          Manufacturer of Cutting and Machine Tools & Specialty Polishing Compounds

          Secured Debt

          (9)

          9/12/2019

          6.50% (L+5.50%, Floor 1.00%)

          8/28/2026

          22,275

          21,894

          20,813

          Ian, Evan & Alexander Corporation (EverWatch)

          (10)

          Cybersecurity, Software and Data Analytics provider to the Intelligence Community

          Secured Debt

          (9)

          7/31/2020

          9.50% (L+8.50%, Floor 1.00%)

          7/31/2025

          16,529

          16,158

          16,158

          Implus Footcare, LLC

          (10)

          Provider of Footwear and Related Accessories

          Secured Debt

          (9)

          6/1/2017

          8.75% (L+7.75%, Floor 1.00%)

          4/30/2024

          18,890

          18,566

          17,172

          Independent Pet Partners Intermediate Holdings, LLC

          (10)

          Omnichannel Retailer of Specialty Pet Products

          Secured Debt

          (19)

          8/20/2020

          6.31% PIK (L+6.00% PIK)

          12/22/2022

          6,111

          6,111

          6,111

          Secured Debt

          (19)

          12/10/2020

          6.00% PIK

          11/20/2023

          16,670

          15,086

          15,086

          Preferred Stock (non-voting)

          12/10/2020

          3,235

          3,235

          Preferred Stock (non-voting)

          12/10/2020

          -

          -

          Member Units

          11/20/2018

          1,558,333

          1,558

          -

          25,990

          24,432

          Industrial Services Acquisition, LLC

          (10)

          Industrial Cleaning Services

          Unsecured Debt

          (19)

          6/17/2016

          13.00% (6.00% Cash, 7.00% PIK)

          12/17/2022

          5,624

          5,579

          5,624

          Preferred Member Units

          (8) (19) (30)

          1/31/2018

          144

          10.00% PIK

          112

          112

          Preferred Member Units

          (8) (19) (30)

          5/17/2019

          80

          20.00% PIK

          71

          71

          Member Units

          (30)

          6/17/2016

          900

          900

          530

          6,662

          6,337

          Inn of the Mountain Gods Resort and Casino

          (11)

          Hotel & Casino Owner & Operator

          Secured Debt

          7/18/2018

          9.25%

          11/30/2023

          6,677

          6,677

          6,677

          Interface Security Systems, L.L.C

          (10)

          Commercial Security & Alarm Services

          Secured Debt

          (9) (19)

          8/7/2019

          11.75% (8.75% Cash, 3.00% PIK) (3.00% PIK + L+7.00%, Floor 1.75%)

          8/7/2023

          7,245

          7,145

          7,245

          Intermedia Holdings, Inc.

          (11)

          Unified Communications as a Service

          Secured Debt

          (9)

          8/3/2018

          7.00% (L+6.00%, Floor 1.00%)

          7/19/2025

          20,839

          20,755

          20,823

          Invincible Boat Company, LLC.

          (10)

          Manufacturer of Sport Fishing Boats

          Secured Debt

          (9)

          8/28/2019

          8.00% (L+6.50%, Floor 1.50%)

          8/28/2025

          8,876

          8,793

          8,876

          Isagenix International, LLC

          (11)

          Direct Marketer of Health & Wellness Products

          Secured Debt

          (9)

          6/21/2018

          6.75% (L+5.75%, Floor 1.00%)

          6/14/2025

          5,572

          5,541

          3,130

          123


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Jackmont Hospitality, Inc.

          (10)

          Franchisee of Casual Dining Restaurants

          Secured Debt

          (9)

          5/26/2015

          7.75% (L+6.75%, Floor 1.00%)

          5/26/2021

          3,954

          3,953

          3,157

          Joerns Healthcare, LLC

          (11)

          Manufacturer and Distributor of Health Care Equipment & Supplies

          Secured Debt

          (9)

          8/21/2019

          7.00% (L+6.00%, Floor 1.00%)

          8/21/2024

          4,016

          3,955

          4,016

          Common Stock

          8/21/2019

          472,579

          4,429

          2,795

          8,384

          6,811

          Kemp Technologies Inc.

          (10)

          Provider of Application Delivery Controllers

          Secured Debt

          (9)

          6/27/2019

          7.50% (L+6.50%, Floor 1.00%)

          3/29/2024

          17,387

          17,088

          17,387

          Common Stock

          1,000,000

          1,550

          1,550

          18,638

          18,937

          Klein Hersh, LLC

          (10)

          Executive and C-Suite Placement for the Life Sciences and Healthcare Industries

          Secured Debt

          (9)

          11/13/2020

          8.75% (L+8.00%, Floor 0.75%)

          11/13/2025

          35,000

          34,098

          34,098

          Kore Wireless Group Inc.

          (11)

          Mission Critical Software Platform

          Secured Debt

          12/31/2018

          5.75% (L+5.50%)

          12/20/2024

          19,090

          19,003

          18,828

          Larchmont Resources, LLC

          (11)

          Oil & Gas Exploration & Production

          Secured Debt

          (9) (19)

          12/8/2016

          11.00% PIK (L+10.00% PIK, Floor 1.00%)

          8/9/2021

          2,185

          2,185

          983

          Member Units

          (30)

          4/1/2018

          2,828

          353

          113

          2,538

          1,096

          Laredo Energy, LLC

          (10)

          Oil & Gas Exploration & Production

          Member Units

          5/4/2020

          1,155,952

          11,560

          10,238

          Lightbox Holdings, L.P.

          (11)

          Provider of Commercial Real Estate Software

          Secured Debt

          5/23/2019

          5.15% (L+5.00%)

          5/9/2026

          14,813

          14,623

          14,368

          LKCM Headwater Investments I, L.P.

          (12) (13)

          Investment Partnership

          LP Interests

          (31)

          1/25/2013

          2.3%

          1,746

          3,524

          LL Management, Inc.

          (10)

          Medical Transportation Service Provider

          Secured Debt

          (9)

          5/2/2019

          8.25% (L+7.25%, Floor 1.00%)

          9/25/2023

          16,504

          16,337

          16,504

          Logix Acquisition Company, LLC

          (10)

          Competitive Local Exchange Carrier

          Secured Debt

          (9)

          1/8/2018

          6.75% (L+5.75%, Floor 1.00%)

          12/22/2024

          26,131

          24,550

          24,171

          Looking Glass Investments, LLC

          (12) (13)

          Specialty Consumer
          Finance

          Member Units

          7/1/2015

          3

          125

          25

          LSF9 Atlantis Holdings, LLC

          (11)

          Provider of Wireless Telecommunications Carrier Services

          124


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Secured Debt

          (9)

          5/17/2017

          7.00% (L+6.00%, Floor 1.00%)

          5/1/2023

          9,206

          9,206

          9,177

          Lulu's Fashion Lounge, LLC

          (10)

          Fast Fashion E-Commerce Retailer

          Secured Debt

          (9) (19)

          8/31/2017

          10.50% (8.00% Cash, 2.50% PIK) (2.50% PIK + L+7.00%, Floor 1.00%)

          8/28/2022

          11,152

          10,983

          9,535

          Lynx FBO Operating LLC

          (10)

          Fixed Based Operator in the General Aviation Industry

          Secured Debt

          (9)

          9/30/2019

          7.25% (L+5.75%, Floor 1.50%)

          9/30/2024

          13,613

          13,369

          13,521

          Member Units

          9/30/2019

          4,872

          687

          780

          14,056

          14,301

          Mac Lean-Fogg Company

          (10)

          Manufacturer and Supplier for Auto and Power Markets

          Secured Debt

          (9)

          4/22/2019

          5.63% (L+5.00%, Floor 0.625%)

          12/22/2025

          17,251

          17,149

          17,251

          Preferred Stock

          (8) (19)

          10/1/2019

          13.75% (4.50% Cash, 9.25% PIK)

          1,870

          1,870

          1,841

          19,019

          19,092

          MHVC Acquisition Corp.

          (11)

          Provider of Differentiated Information Solutions, Systems Engineering, and Analytics

          Secured Debt

          (9)

          5/8/2017

          6.25% (L+5.25%, Floor 1.00%)

          4/29/2024

          19,797

          19,716

          19,846

          Mills Fleet Farm Group, LLC

          (10)

          Omnichannel Retailer of Work, Farm and Lifestyle Merchandise

          Secured Debt

          (9)

          10/24/2018

          7.00% (L+6.00%, Floor 1.00%)

          10/24/2024

          13,860

          13,595

          13,609

          NBG Acquisition Inc

          (11)

          Wholesaler of Home Décor Products

          Secured Debt

          (9)

          4/28/2017

          6.50% (L+5.50%, Floor 1.00%)

          4/26/2024

          4,070

          4,034

          3,399

          NinjaTrader, LLC

          (10)

          Operator of Futures Trading Platform

          Secured Debt

          (9)

          12/18/2019

          8.25% (L+6.75%, Floor 1.50%)

          12/18/2024

          16,875

          16,543

          16,849

          NNE Partners, LLC

          (10)

          Oil & Gas Exploration & Production

          Secured Debt

          (19)

          3/2/2017

          9.48% (4.75% Cash, 4.50% PIK) (4.50% PIK + L+4.75%)

          12/31/2023

          23,683

          23,572

          21,025

          Project Eagle Holdings, LLC

          (10)

          Provider of Secure Business Collaboration Software

          Secured Debt

          (9)

          7/6/2020

          9.25% (L+8.25%, Floor 1.00%)

          7/6/2026

          14,963

          14,583

          14,583

          Novetta Solutions, LLC

          (11)

          Provider of Advanced Analytics Solutions for Defense Agencies

          Secured Debt

          (9)

          6/21/2017

          6.00% (L+5.00%, Floor 1.00%)

          10/17/2022

          22,912

          22,629

          22,864

          NTM Acquisition Corp.

          (11)

          Provider of B2B Travel Information Content

          125


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          Secured Debt

          (9) (19)

          7/12/2016

          8.25% (7.25% Cash, 1.00% PIK) (1.00%PIK + L+6.25%, Floor 1.00%)

          6/7/2024

          4,694

          4,694

          4,224

          Ospemifene Royalty Sub LLC (QuatRx)

          (10)

          Estrogen-Deficiency Drug Manufacturer and Distributor

          Secured Debt

          (14)

          7/8/2013

          11.50%

          11/15/2026

          4,765

          4,765

          121

          PaySimple, Inc.

          (10)

          Leading Technology Services Commerce Platform

          Secured Debt

          9/9/2019

          5.65% (L+5.50%)

          8/23/2025

          24,448

          24,225

          23,959

          PricewaterhouseCoopers Public Sector LLP

          (11)

          Provider of Consulting Services to Governments

          Secured Debt

          5/24/2018

          8.15% (L+8.00%)

          5/1/2026

          9,000

          8,969

          9,000

          PT Network, LLC

          (10)

          Provider of Outpatient Physical Therapy and Sports Medicine Services

          Secured Debt

          (9) (19)

          10/12/2017

          8.73% (6.73% Cash, 2.00% PIK) (2.00% PIK + L+5.50%, Floor 1.00%)

          11/30/2023

          8,601

          8,601

          8,601

          Research Now Group, Inc. and Survey Sampling International, LLC

          (11)

          Provider of Outsourced Online Surveying

          Secured Debt

          (9)

          12/29/2017

          6.50% (L+5.50%, Floor 1.00%)

          12/20/2024

          17,930

          17,497

          17,715

          RM Bidder, LLC

          (10)

          Scripted and Unscripted TV and Digital Programming Provider

          Warrants

          (26)

          11/12/2015

          187,161

          10/20/2025

          425

          -

          Member Units

          11/12/2015

          2,779

          46

          26

          471

          26

          RTIC Subsidiary Holdings, LLC

          (10)

          Direct-To-Consumer eCommerce Provider of Outdoor Products

          Secured Debt

          (9)

          9/1/2020

          9.00% (L+7.75%, Floor 1.25%)

          9/1/2025

          17,260

          17,026

          17,026

          SAFETY Investment Holdings, LLC

          Provider of Intelligent Driver Record Monitoring Software and Services

          Member Units

          4/29/2016

          2,000,000

          2,000

          2,350

          Salient Partners L.P.

          (11)

          Provider of Asset Management Services

          Secured Debt

          (9)

          8/31/2018

          7.00% (L+6.00%, Floor 1.00%)

          8/31/2021

          6,450

          6,443

          4,542

          Staples Canada ULC

          (10) (13) (21)

          Office Supplies Retailer

          Secured Debt

          (9) (22)

          9/14/2017

          8.00% (L+7.00%, Floor 1.00%)

          9/12/2024

          13,032

          12,896

          12,382

          TEAM Public Choices, LLC

          (10)

          Home-Based Care Employment Service Provider

          Secured Debt

          (9)

          12/22/2020

          6.00% (L+5.00%, Floor 1.00%)

          12/18/2027

          12,500

          12,126

          12,406

          Tectonic Financial, Inc.

          Financial Services Organization

          Common Stock

          5/15/2017

          200,000

          2,000

          2,800

          126


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          Portfolio Company (1) (20)

          Business Description

          Type of Investment (2) (3) (15)

          Investment Date (24)

          Shares/Units

          Rate

          Maturity Date

          Principal (4)

          Cost (4)

          Fair Value (18)

          TGP Holdings III LLC

          (11)

          Outdoor Cooking & Accessories

          Secured Debt

          (9)

          9/30/2017

          9.50% (L+8.50%, Floor 1.00%)

          9/25/2025

          5,500

          5,448

          5,307

          The Pasha Group

          (11)

          Diversified Logistics and Transportation Provided

          Secured Debt

          (9)

          2/2/2018

          9.00% (L+8.00%, Floor 1.00%)

          1/26/2023

          10,162

          9,585

          9,323

          USA DeBusk LLC

          (10)

          Provider of Industrial Cleaning Services

          Secured Debt

          (9)

          10/22/2019

          6.75% (L+5.75%, Floor 1.00%)

          10/22/2024

          24,948

          24,561

          24,591

          U.S. TelePacific Corp.

          (11)

          Provider of Communications and Managed Services

          Secured Debt

          (9)

          5/17/2017

          6.50% (L+5.50%, Floor 1.00%)

          5/2/2023

          17,088

          16,913

          15,486

          Veregy Consolidated, Inc.

          (11)

          Energy Service Company

          Secured Debt

          (9)

          11/9/2020

          7.00% (L+6.00%, Floor 1.00%)

          11/3/2027

          15,000

          14,587

          14,888

          Vida Capital, Inc

          (11)

          Alternative Asset Manager

          Secured Debt

          10/10/2019

          6.15% (L+6.00%)

          10/1/2026

          17,853

          17,626

          17,272

          Vistar Media, Inc.

          (10)

          Operator of Digital Out-of-Home Advertising Platform

          Secured Debt

          (9) (19)

          2/17/2017

          12.00% (8.50% Cash, 3.50% PIK) (3.50% PIK + L+7.50%, Floor 1.00%)

          4/3/2023

          2,490

          2,394

          2,490

          Secured Debt

          (9) (19)

          4/3/2019

          12.00% (8.50% Cash, 3.50% PIK) (3.50% PIK + L+7.50%, Floor 1.00%)

          4/3/2023

          2,146

          2,119

          2,146

          Preferred Stock

          4/3/2019

          70,207

          767

          910

          Warrants

          (25)

          4/3/2019

          69,675

          4/3/2029

          -

          920

          5,280

          6,466

          YS Garments, LLC

          (11)

          Designer and Provider of Branded Activewear

          Secured Debt

          (9)

          8/22/2018

          7.00% (L+6.00%, Floor 1.00%)

          8/9/2024

          13,997

          13,902

          12,911

          Zilliant Incorporated

          Price Optimization and Margin Management Solutions

          Preferred Stock

          12/31/2020

          186,777

          154

          260

          Warrants

          (28)

          12/31/2020

          952,500

          6/15/2022

          1,071

          1,190

          1,225

          1,450

          Subtotal Non-Control/Non-Affiliate Investments (79.5% of net assets at fair value)

          1,268,740

          1,204,840

          Total Portfolio Investments, December 31, 2020 (177.2% of net assets at fair value)

          $

          2,516,709

          $

          2,684,866

          127


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          (1)

          All investments are Lower Middle Market portfolio investments, unless otherwise noted. See Note C for a description of Lower Middle Market portfolio investments. All of the Company’s investments, unless otherwise noted, are encumbered either as security for the Company’s Credit Facility or in support of the SBA-guaranteed debentures issued by the Funds.

          (2)

          Debt investments are income producing, unless otherwise noted. Equity and warrants are non-income producing, unless otherwise noted.

          (3)

          See Note C and Schedule 12-14 for a summary of geographic location of portfolio companies.

          (4)

          Principal is net of repayments. Cost is net of repayments and accumulated unearned income.

          (5)

          Control investments are defined by the 1940 Act, as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

          (6)

          Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments.

          (7)

          Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

          (8)

          Income producing through dividends or distributions.

          (9)

          Index based floating interest rate is subject to contractual minimum interest rate. A majority of the variable rate loans in the Company’s investment portfolio bear interest at a rate that may be determined by reference to either LIBOR or an alternate Base Rate (commonly based on the Federal Funds Rate or the Prime Rate), which typically resets semi-annually, quarterly, or monthly at the borrower’s option. The borrower may also elect to have multiple interest reset periods for each loan. For each such loan, the Company has provided the weighted average annual stated interest rate in effect at December 31, 2020. As noted in this schedule, 61% of the loans (based on the par amount) contain LIBOR floors which range between 0.50% and 2.00%, with a weighted-average LIBOR floor of approximately 1.11%.

          (10)

          Private Loan portfolio investment. See Note C for a description of Private Loan portfolio investments.

          (11)

          Middle Market portfolio investment. See Note C for a description of Middle Market portfolio investments.

          (12)

          Other Portfolio investment. See Note C for a description of Other Portfolio investments.

          (13)

          Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.

          (14)

          Non-accrual and non-income producing investment.

          (15)

          All of the Company’s portfolio investments are generally subject to restrictions on resale as “restricted securities.”

          (16)

          External Investment Manager. Investment is not encumbered as security for the Company's Credit Facility or in support of the SBA-guaranteed debentures issued by the Funds.

          (17)

          Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.

          (18)

          Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C for further discussion.

          (19)

          PIK interest income and cumulative dividend income represent income not paid currently in cash.

          (20)

          All portfolio company headquarters are based in the United States, unless otherwise noted.

          (21)

          Portfolio company headquarters are located outside of the United States.

          (22)

          In connection with the Company's debt investment in Staples Canada ULC and in an attempt to mitigate any potential adverse change in foreign exchange rates during the term of the Company's investment, the Company maintains a forward foreign currency contract with Cadence Bank to lend $15.8 million Canadian Dollars and receive $12.0 million U.S. Dollars with a settlement date of September 14, 2021. The unrealized appreciation on the forward foreign currency contract is $0.4 million as of December 31, 2020.

          (23)

          The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with

          128


          Table of Contents

          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments (Continued)

          December 31, 2020

          (dollars in thousands)

          respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 7.25% (Floor 1.25%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.

          (24)

          Investment date represents the date of initial investment in the security position.

          (25)

          Warrants are presented in equivalent shares with a strike price of $10.92 per share.

          (26)

          Warrants are presented in equivalent units with a strike price of $14.28 per unit.

          (27)

          Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit.

          (28)

          Warrants are presented in equivalent shares with a strike price of $0.001 per share.

          (29)

          Warrants are presented in equivalent units with a strike price of $1.50 per unit.

          (30)

          Shares/Units represent ownership in an underlying Real Estate or HoldCo entity.

          (31)

          Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated.

          (32)

          Portfolio company is in a bankruptcy process and, as such, the maturity date of our debt investment in this portfolio company will not be finally determined until such process is complete. As noted in footnote (14), our debt investment in this portfolio company is on non-accrual status.

          129


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Control Investments(5)

           

           

           

           

                    

                        

          Access Media Holdings, LLC(10)

           

          Private Cable Operator

                      

             

          5% Current / 5% PIK Secured Debt (Maturity — July 22, 2020)(19)

           $23,828 $23,828 $17,150 

             

          Preferred Member Units (8,248,500 units)

               8,142   

             

          Member Units (45 units)

               1   

                   31,971  17,150 

                        

          ASC Interests, LLC

           

          Recreational and Educational Shooting Facility

                      

             

          11% Secured Debt (Maturity — July 31, 2018)

            1,800  1,795  1,795 

             

          Member Units (1,500 units)

               1,500  1,530 

                   3,295  3,325 

                        

          ATS Workholding, LLC(10)

           

          Manufacturer of Machine Cutting Tools and Accessories

                      

             

          5% Secured Debt (Maturity — November 16, 2021)

            3,726  3,249  3,249 

             

          Preferred Member Units (3,725,862 units)

               3,726  3,726 

                   6,975  6,975 

                        

          Bond-Coat, Inc.

           

          Casing and Tubing Coating Services

                      

             

          12% Secured Debt (Maturity — December 28, 2017)(17)

            11,596  11,596  11,596 

             

          Common Stock (57,508 shares)

               6,350  9,370 

                   17,946  20,966 

                        

          Café Brazil, LLC

           

          Casual Restaurant Group

                      

             

          Member Units (1,233 units)(8)

               1,742  4,900 

                        

          CBT Nuggets, LLC

           

          Produces and Sells IT Training Certification Videos

                      

             

          Member Units (416 units)(8)

               1,300  89,560 

                        

          Charps, LLC

           

          Pipeline Maintenance and Construction

                      

             

          12% Secured Debt (Maturity — February 3, 2022)

            18,400  18,225  18,225 

             

          Preferred Member Units (1,600 units)

               400  650 

                   18,625  18,875 

                        

          Clad-Rex Steel, LLC

           

          Specialty Manufacturer of Vinyl-Clad Metal

                      

             

          LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.86%, Secured Debt (Maturity — December 20, 2021)(9)

            13,280  13,168  13,280 

             

          Member Units (717 units)(8)

               7,280  9,500 

             

          10% Secured Debt (Clad-Rex Steel RE Investor, LLC) (Maturity — December 20, 2036)

            1,183  1,171  1,183 

             

          Member Units (Clad-Rex Steel RE Investor, LLC) (800 units)

               210  280 

                   21,829  24,243 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          CMS Minerals Investments

           

          Oil & Gas Exploration & Production

                      

             

          Member Units (CMS Minerals II, LLC) (100 units)(8)

               3,440  2,392 

                        

          Copper Trail Energy Fund I, LP(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (Fully diluted 30.1%)

               2,500  2,500 

                        

          Datacom, LLC

           

          Technology and Telecommunications Provider

                      

             

          8% Secured Debt (Maturity — May 30, 2018)

            1,575  1,575  1,575 

             

          5.25% Current / 5.25% PIK Secured Debt (Maturity — May 30, 2019)(19)

            12,349  12,311  11,110 

             

          Class A Preferred Member Units

               1,181  730 

             

          Class B Preferred Member Units (6,453 units)

               6,030   

                   21,097  13,415 

                        

          Gamber-Johnson Holdings, LLC

           

          Manufacturer of Ruggedized Computer Mounting Systems

                      

             

          LIBOR Plus 11.00% (Floor 1.00%), Current Coupon 12.36%, Secured Debt (Maturity — June 24, 2021)(9)

            23,400  23,213  23,400 

             

          Member Units (8,619 units)(8)

               14,844  23,370 

                   38,057  46,770 

                        

          Garreco, LLC

           

          Manufacturer and Supplier of Dental Products

                      

             

          LIBOR Plus 10.00% (Floor 1.00%), Current Coupon 11.34%, Secured Debt (Maturity — March 31, 2020)(9)

            5,483  5,443  5,443 

             

          Member Units (1,200 units)

               1,200  1,940 

                   6,643  7,383 

                        

          GRT Rubber Technologies LLC

           

          Manufacturer of Engineered Rubber Products

                      

             

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.36%, Secured Debt (Maturity — December 19, 2019)(9)

            11,603  11,550  11,603 

             

          Member Units (5,879 units)(8)

               13,065  21,970 

                   24,615  33,573 

                        

          Gulf Manufacturing, LLC

           

          Manufacturer of Specialty Fabricated Industrial Piping Products

                      

             

          Member Units (438 units)(8)

               2,980  10,060 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Gulf Publishing Holdings, LLC

           

          Energy Industry Focused Media and Publishing

                      

             

          LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.86%, Secured Debt (Maturity — September 30, 2020)(9)

            80  80  80 

             

          12.5% Secured Debt (Maturity — April 29, 2021)

            12,800  12,703  12,703 

             

          Member Units (3,681 units)

               3,681  4,840 

                   16,464  17,623 

                        

          Harborside Holdings, LLC

           

          Real Estate Holding Company

                      

             

          Member units (100 units)

               6,206  9,400 

                        

          Harris Preston Fund Investments(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (2717 MH, L.P.) (Fully diluted 49.3%)

               536  536 

                        

          Harrison Hydra-Gen, Ltd.

           

          Manufacturer of Hydraulic Generators

                      

             

          Common Stock (107,456 shares)

               718  3,580 

                        

          HW Temps LLC

           

          Temporary Staffing Solutions

                      

             

          LIBOR Plus 11.00% (Floor 1.00%), Current Coupon 12.36%, Secured Debt (Maturity July 2, 2020)(9)

            9,976  9,918  9,918 

             

          Preferred Member Units (3,200 units)

               3,942  3,940 

                   13,860  13,858 

                        

          Hydratec, Inc.

           

          Designer and Installer of Micro-Irrigation Systems

                      

             

          Common Stock (7,095 shares)(8)

               7,095  15,000 

                        

          IDX Broker, LLC

           

          Provider of Marketing and CRM Tools for the Real Estate Industry

                      

             

          11.5% Secured Debt (Maturity — November 15, 2020)

            15,250  15,116  15,250 

             

          Preferred Member Units (5,607 units)(8)

               5,952  11,660 

                   21,068  26,910 

                        

          Jensen Jewelers of Idaho, LLC

           

          Retail Jewelry Store

                      

             

          Prime Plus 6.75% (Floor 2.00%), Current Coupon 11.00%, Secured Debt (Maturity — November 14, 2019)(9)

            3,955  3,917  3,955 

             

          Member Units (627 units)(8)

               811  5,100 

                   4,728  9,055 

                        

          KBK Industries, LLC

           

          Manufacturer of Specialty Oilfield and Industrial Products

                      

             

          10% Secured Debt (Maturity — September 28, 2020)

            375  372  375 

             

          12.5% Secured Debt (Maturity — September 28, 2020)

            5,900  5,867  5,900 

             

          Member Units (325 units)(8)

               783  4,420 

                   7,022  10,695 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Lamb Ventures, LLC

           

          Aftermarket Automotive Services Chain

                      

             

          11% Secured Debt (Maturity — July 1, 2022)

            9,942  9,890  9,942 

             

          Preferred Equity (non-voting)

               400  400 

             

          Member Units (742 units)(8)

               5,273  6,790 

             

          9.5% Secured Debt (Lamb's Real Estate Investment I, LLC) (Maturity — March 31, 2027)

            432  428  432 

             

          Member Units (Lamb's Real Estate Investment I, LLC) (1,000 units)(8)

               625  520 

                   16,616  18,084 

                        

          Marine Shelters Holdings, LLC

           

          Fabricator of Marine and Industrial Shelters

                      

             

          12% PIK Secured Debt (Maturity — December 28, 2017)(14)

            3,131  3,078   

             

          Preferred Member Units (3,810 units)

               5,352   

                   8,430   

                        

          Market Force Information, LLC

           

          Provider of Customer Experience Management Services

                      

             

          LIBOR Plus 11.00% (Floor 1.00%), Current Coupon 12.48%, Secured Debt (Maturity — July 28, 2022)(9)

            23,360  23,143  23,143 

             

          Member Units (657,113 units)

               14,700  14,700 

                   37,843  37,843 

                        

          MH Corbin Holding LLC

           

          Manufacturer and Distributor of Traffic Safety Products

                      

             

          13% Secured Debt (Maturity — August 31, 2020)

            12,600  12,526  12,526 

             

          Preferred Member Units (4,000 shares)

               6,000  6,000 

                   18,526  18,526 

                        

          Mid-Columbia Lumber Products, LLC

           

          Manufacturer of Finger-Jointed Lumber Products

                      

             

          10% Secured Debt (Maturity — January 15, 2020)

            1,398  1,390  1,390 

             

          12% Secured Debt (Maturity — January 15, 2020)

            3,900  3,863  3,863 

             

          Member Units (5,714 units)

               2,405  1,575 

             

          9.5% Secured Debt (Mid-Columbia Real Estate, LLC) (Maturity — May 13, 2025)

            791  791  791 

             

          Member Units (Mid-Columbia Real Estate, LLC) (500 units)(8)

               790  1,290 

                   9,239  8,909 

                        

          MSC Adviser I, LLC(16)

           

          Third Party Investment Advisory Services

                      

             

          Member Units (Fully diluted 100.0%)(8)

                 41,768 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Mystic Logistics Holdings, LLC

           

          Logistics and Distribution Services Provider for Large Volume Mailers

                      

             

          12% Secured Debt (Maturity — August 15, 2019)

            7,768  7,696  7,696 

             

          Common Stock (5,873 shares)

               2,720  6,820 

                   10,416  14,516 

                        

          NAPCO Precast, LLC

           

          Precast Concrete Manufacturing

                      

             

          LIBOR Plus 8.50%, Current Coupon 9.98%, Secured Debt (Maturity — May 31, 2019)

            11,475  11,439  11,475 

             

          Member Units (2,955 units)(8)

               2,975  11,670 

                   14,414  23,145 

                        

          NRI Clinical Research, LLC

           

          Clinical Research Service Provider

                      

             

          LIBOR Plus 6.50% (Floor 1.50%), Current Coupon 8.00%, Secured Debt (Maturity — January 15, 2018)(9)

            400  400  400 

             

          14% Secured Debt (Maturity — January 15, 2018)

            3,865  3,865  3,865 

             

          Warrants (251,723 equivalent units; Expiration — September 8, 2021; Strike price — $0.01 per unit)

               252  500 

             

          Member Units (1,454,167 units)

               765  2,500 

                   5,282  7,265 

                        

          NRP Jones, LLC

           

          Manufacturer of Hoses, Fittings and Assemblies

                      

             

          12% Secured Debt (Maturity — March 20, 2023)

            6,376  6,376  6,376 

             

          Member Units (65,208 units)(8)

               3,717  3,250 

                   10,093  9,626 

                        

          NuStep, LLC

           

          Designer, Manufacturer and Distributor of Fitness Equipment

                      

             

          12% Secured Debt (Maturity — January 31, 2022)

            20,600  20,420  20,420 

             

          Preferred Member Units (406 units)

               10,200  10,200 

                   30,620  30,620 

                        

          OMi Holdings, Inc.

           

          Manufacturer of Overhead Cranes

                      

             

          Common Stock (1,500 shares)(8)

               1,080  14,110 

                        

          Pegasus Research Group, LLC

           

          Provider of Telemarketing and Data Services

                      

             

          Member Units (460 units)(8)

               1,290  10,310 

                        

          PPL RVs, Inc.

           

          Recreational Vehicle Dealer

                      

             

          LIBOR Plus 7.00% (Floor 0.50%), Current Coupon 8.34%, Secured Debt (Maturity — November 15, 2021)(9)

            16,100  15,972  16,100 

             

          Common Stock (1,962 shares)(8)

               2,150  12,440 

                   18,122  28,540 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Principle Environmental, LLC (d/b/a TruHorizon Environmental Solutions)

           

          Noise Abatement Service Provider

                      

             

          13% Secured Debt (Maturity — April 30, 2020)

            7,477  7,347  7,477 

             

          Preferred Member Units (19,631 units)

               4,600  11,490 

             

          Warrants (1,018 equivalent units; Expiration — January 31, 2021; Strike price — $0.01 per unit)

               1,200  650 

                   13,147  19,617 

                        

          Quality Lease Service, LLC

           

          Provider of Rigsite Accommodation Unit Rentals and Related Services

                      

             

          Zero Coupon Secured Debt (Maturity — June 8, 2020)

            7,341  7,341  6,950 

             

          Member Units (1,000 units)

               2,868  4,938 

                   10,209  11,888 

                        

          River Aggregates, LLC

           

          Processor of Construction Aggregates

                      

             

          Zero Coupon Secured Debt (Maturity — June 30, 2018)

            750  707  707 

             

          Member Units (1,150 units)

               1,150  4,610 

             

          Member Units (RA Properties, LLC) (1,500 units)

               369  2,559 

                   2,226  7,876 

                        

          SoftTouch Medical Holdings LLC

           

          Provider of In-Home Pediatric Durable Medical Equipment

                      

             

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.36%, Secured Debt (Maturity — October 31, 2019)(9)

            7,140  7,110  7,140 

             

          Member Units (4,450 units)(8)

               4,930  10,089 

                   12,040  17,229 

                        

          The MPI Group, LLC

           

          Manufacturer of Custom Hollow Metal Doors, Frames and Accessories

                      

             

          9% Secured Debt (Maturity — October 2, 2018)

            2,924  2,923  2,410 

             

          Series A Preferred Units (2,500 units)

               2,500   

             

          Warrants (1,424 equivalent units; Expiration — July 1, 2024; Strike price — $0.01 per unit)

               1,096   

             

          Member Units (MPI Real Estate Holdings, LLC) (100 units)(8)

               2,300  2,389 

                   8,819  4,799 

                        

          Uvalco Supply, LLC

           

          Farm and Ranch Supply Store

                      

             

          9% Secured Debt (Maturity — January 1, 2019)

            348  348  348 

             

          Member Units (1,867 units)(8)

               3,579  3,880 

                   3,927  4,228 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Vision Interests, Inc.

           

          Manufacturer / Installer of Commercial Signage

                      

             

          13% Secured Debt (Maturity — December 23, 2018)

            2,814  2,797  2,797 

             

          Series A Preferred Stock (3,000,000 shares)

               3,000  3,000 

             

          Common Stock (1,126,242 shares)

               3,706   

                   9,503  5,797 

                        

          Ziegler's NYPD, LLC

           

          Casual Restaurant Group

                      

             

          6.5% Secured Debt (Maturity — October 1, 2019)

            1,000  996  996 

             

          12% Secured Debt (Maturity — October 1, 2019)

            300  300  300 

             

          14% Secured Debt (Maturity — October 1, 2019)

            2,750  2,750  2,750 

             

          Warrants (587 equivalent units; Expiration — September 29, 2018; Strike price — $0.01 per unit)

               600   

             

          Preferred Member Units (10,072 units)

               2,834  3,220 

                   7,480  7,266 

          Subtotal Control Investments (34.6% of total investments at fair value)

           $530,034 $750,706 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Affiliate Investments(6)

           

           

           

           

                    

                        

          AFG Capital Group, LLC

           

          Provider of Rent-to-Own Financing Solutions and Services

           

           

                    

             

          Warrants (42 equivalent units; Expiration — November 7, 2024; Strike price — $0.01 per unit)

              $259 $860 

             

          Member Units (186 units)(8)

               1,200  3,590 

                   1,459  4,450 

                        

          Barfly Ventures, LLC(10)

           

          Casual Restaurant Group

           

           

                    

             

          12% Secured Debt (Maturity — August 31, 2020)

            8,715  8,572  8,715 

             

          Options (2 equivalent units)

               397  920 

             

          Warrant (1 equivalent unit; Expiration — August 31, 2025; Strike price — $1.00 per unit)

               473  520 

                   9,442  10,155 

                        

          BBB Tank Services, LLC

           

          Maintenance, Repair and Construction Services to the Above-Ground Storage Tank Market

                      

             

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.36%, Secured Debt (Maturity — April 8, 2021)(9)

            800  778  778 

             

          15% Secured Debt (Maturity — April 8, 2021)

            4,000  3,876  3,876 

             

          Member Units (800,000 units)

               800  500 

                   5,454  5,154 

                        

          Boccella Precast Products LLC

           

          Manufacturer of Precast Hollow Core Concrete

                      

             

          LIBOR Plus 10.00% (Floor 1.00%), Current Coupon 11.34%, Secured Debt (Maturity — June 30, 2022)(9)

            16,400  16,230  16,400 

             

          Member Units (2,160,000 units)

               2,160  3,440 

                   18,390  19,840 

                        

          Boss Industries, LLC

           

          Manufacturer and Distributor of Air, Power and Other Industrial Equipment

                      

             

          Preferred Member Units (2,242 units)(8)

               2,080  3,930 

                        

          Bridge Capital Solutions Corporation

           

          Financial Services and Cash Flow Solutions Provider

                      

             

          13% Secured Debt (Maturity — July 25, 2021)

            7,500  5,884  5,884 

             

          Warrants (63 equivalent shares; Expiration — July 25, 2026; Strike price — $0.01 per share)

               2,132  3,520 

             

          13% Secured Debt (Mercury Service Group, LLC) (Maturity — July 25, 2021)

            1,000  992  1,000 

             

          Preferred Member Units (Mercury Service Group, LLC) (17,742 units)(8)

               1,000  1,000 

                   10,008  11,404 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Buca C, LLC

           

          Casual Restaurant Group

                      

             

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.63%, Secured Debt (Maturity — June 30, 2020)(9)

            20,304  20,193  20,193 

             

          Preferred Member Units (6 units; 6% cumulative)(8)(19)

               4,177  4,172 

                   24,370  24,365 

                        

          CAI Software LLC

           

          Provider of Specialized Enterprise Resource Planning Software

                      

             

          12% Secured Debt (Maturity — October 10, 2019)

            4,083  4,060  4,083 

             

          Member Units (65,356 units)(8)

               654  3,230 

                   4,714  7,313 

                        

          Chandler Signs Holdings, LLC(10)

           

          Sign Manufacturer

                      

             

          12% Secured Debt (Maturity — July 4, 2021)

            4,500  4,468  4,500 

             

          Class A Units (1,500,000 units)(8)

               1,500  2,650 

                   5,968  7,150 

                        

          Condit Exhibits, LLC

           

          Tradeshow Exhibits / Custom Displays Provider

                      

             

          Member Units (3,936 units)(8)

               100  1,950 

                        

          Congruent Credit Opportunities Funds(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (Congruent Credit Opportunities Fund II, LP) (Fully diluted 19.8%)(8)

               5,730  1,515 

             

          LP Interests (Congruent Credit Opportunities Fund III, LP) (Fully diluted 17.4%)(8)

               17,869  18,632 

                   23,599  20,147 

                        

          Dos Rios Partners (12)(13)

           

          Investment Partnership

                      

             

          LP Interests (Dos Rios Partners, LP) (Fully diluted 20.2%)

               5,996  7,165 

             

          LP Interests (Dos Rios Partners — A, LP) (Fully diluted 6.4%)

               1,904  1,889 

                   7,900  9,054 

                        

          Dos Rios Stone Products LLC(10)

           

          Limestone and Sandstone Dimension Cut Stone Mining Quarries

                      

             

          Class A Units (2,000,000 units)(8)

               2,000  1,790 

                        

          East Teak Fine Hardwoods, Inc.

           

          Distributor of Hardwood Products

                      

             

          Common Stock (6,250 shares)(8)

               480  630 

                        

          EIG Fund Investments(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (EIG Global Private Debt Fund-A, L.P.) (Fully diluted 11.1%)(8)

               1,103  1,055 

                        

          Freeport Financial Funds(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (Freeport Financial SBIC Fund LP) (Fully diluted 9.3%)(8)

               5,974  5,614 

             

          LP Interests (Freeport First Lien Loan Fund III LP) (Fully diluted 6.0%)(8)

               8,558  8,506 

                   14,532  14,120 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Gault Financial, LLC (RMB Capital, LLC)

           

          Purchases and Manages Collection of Healthcare and other Business Receivables

                      

             

          10.5% Secured Debt (Maturity — January 1, 2019)

            12,483  12,483  11,532 

             

          Warrants (29,032 equivalent units; Expiration — February 9, 2022; Strike price — $0.01 per unit)

               400   

                   12,883  11,532 

                        

          Guerdon Modular Holdings, Inc.

           

          Multi-Family and Commercial Modular Construction Company

                      

             

          13% Secured Debt (Maturity — August 13, 2019)

            10,708  10,632  10,632 

             

          Preferred Stock (404,998 shares)

               1,140   

             

          Common Stock (212,033 shares)

               2,983   

                   14,755  10,632 

                        

          Harris Preston Fund Investments(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (HPEP 3, L.P.) (Fully diluted 9.9%)

               943  943 

                        

          Hawk Ridge Systems, LLC(13)

           

          Value-Added Reseller of Engineering Design and Manufacturing Solutions

                      

             

          11% Secured Debt (Maturity — December 2, 2021)

            14,300  14,175  14,300 

             

          Preferred Member Units (226 units)(8)

               2,850  3,800 

             

          Preferred Member Units (HRS Services, ULC) (226 units)(8)

               150  200 

                   17,175  18,300 

                        

          Houston Plating and Coatings, LLC

           

          Provider of Plating and Industrial Coating Services

                      

             

          8% Unsecured Convertible Debt (Maturity — May 1, 2022)

            3,000  3,000  3,200 

             

          Member Units (315,756 units)

               2,179  6,140 

                   5,179  9,340 

                        

          I-45 SLF LLC(12)(13)

           

          Investment Partnership

                      

             

          Member Units (Fully diluted 20.0%; 24.4% profits interest)(8)

               16,200  16,841 

                        

          L.F. Manufacturing Holdings, LLC(10)

           

          Manufacturer of Fiberglass Products

                      

             

          Member Units (2,179,001 units)

               2,019  2,000 

                        

          Meisler Operating LLC

           

          Provider of Short-term Trailer and Container Rental

                      

             

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.84%, Secured Debt (Maturity — June 7, 2022)(9)

            16,800  16,633  16,633 

             

          Member Units (Milton Meisler Holdings LLC) (31,976 units)

               3,200  3,390 

                   19,833  20,023 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          OnAsset Intelligence, Inc.

           

          Provider of Transportation Monitoring / Tracking Products and Services

                      

             

          12% PIK Secured Debt (Maturity — June 30, 2021)(19)

            5,094  5,094  5,094 

             

          10% PIK Unsecured Debt (Maturity — June 30, 2021)(19)

            48  48  48 

             

          Preferred Stock (912 shares)

               1,981   

             

          Warrants (5,333 equivalent shares; Expiration — April 18, 2021; Strike price — $0.01 per share)

               1,919   

                   9,042  5,142 

          OPI International Ltd.(13)

           

          Provider of Man Camp and Industrial Storage Services

                      

             

          Common Stock (20,766,317 shares)

               1,371   

                        

          PCI Holding Company, Inc.

           

          Manufacturer of Industrial Gas Generating Systems

                      

             

          12% Secured Debt (Maturity — March 31, 2019)

            12,650  12,593  12,593 

             

          Preferred Stock (1,740,000 shares)

               1,740  2,610 

             

          Preferred Stock (1,500,000 shares; 20% cumulative)(8)(19)

               3,927  890 

                   18,260  16,093 

          Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)

           

          Provider of Rigsite Accommodation Unit Rentals and Related Services

                      

             

          12% Secured Debt (Maturity — January 8, 2018) (14) (15)

            30,785  30,281  250 

             

          Preferred Member Units (250 units)

               2,500   

                   32,781  250 

                        

          Tin Roof Acquisition Company

           

          Casual Restaurant Group

                      

             

          12% Secured Debt (Maturity — November 13, 2018)

            12,783  12,722  12,722 

             

          Class C Preferred Stock (Fully diluted 10.0%; 10% cumulative)(8)(19)

               3,027  3,027 

                   15,749  15,749 

                        

          UniTek Global Services, Inc.(11)

           

          Provider of Outsourced Infrastructure Services

                      

             

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 10.20%, Secured Debt (Maturity — January 13, 2019)(9)

            8,535  8,529  8,535 

             

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 9.20% / 1.00% PIK, Current Coupon Plus PIK 10.20%, Secured Debt (Maturity — January 13, 2019)(9)(19)

            137  137  137 

             

          15% PIK Unsecured Debt (Maturity — July 13, 2019)(19)

            865  865  865 

             

          Preferred Stock (2,596,567 shares; 19% cumulative)(8)(19)

               2,858  2,850 

             

          Preferred Stock (4,935,377 shares; 13.5% cumulative)(8)(19)

               7,361  7,320 

             

          Common Stock (1,075,992 shares)

                 2,490 

                   19,750  22,197 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Universal Wellhead Services Holdings, LLC(10)

           

          Provider of Wellhead Equipment, Designs, and Personnel to the Oil & Gas Industry

                      

             

          Preferred Member Units (UWS Investments, LLC) (716,949 units)

               717  830 

             

          Member Units (UWS Investments, LLC) (4,000,000 units)

               4,000  1,910 

                   4,717  2,740 

          Valley Healthcare Group, LLC

           

          Provider of Durable Medical Equipment

                      

             

          LIBOR Plus 12.50% (Floor 0.50%), Current Coupon 13.86%, Secured Debt (Maturity — December 29, 2020)(9)

            11,766  11,685  11,685 

             

          Preferred Member Units (Valley Healthcare Holding, LLC) (1,600 units)

               1,600  1,600 

                   13,285  13,285 

                        

          Volusion, LLC

           

          Provider of Online Software-as-a-Service eCommerce Solutions

                      

             

          11.5% Secured Debt (Maturity — January 26, 2020)

            16,734  15,200  15,200 

             

          Preferred Member Units (4,876,670 units)

               14,000  14,000 

             

          Warrants (1,831,355 equivalent units; Expiration — January 26, 2025; Strike price — $0.01 per unit)

               2,576  2,080 

                   31,776  31,280 

          Subtotal Affiliate Investments (15.6% of total investments at fair value)

           $367,317 $338,854 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Non-Control/Non-Affiliate Investments(7)

                    

                        

          AAC Holdings, Inc.(11)

           

          Substance Abuse Treatment Service Provider

                      

             

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 8.13%, Secured Debt (Maturity — June 30, 2023)(9)

           $11,751 $11,475 $11,810 

                        

          Adams Publishing Group, LLC(10)

           

          Local Newspaper Operator

                      

             

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.69%, Secured Debt (Maturity — November 3, 2020)(9)

            10,341  10,116  10,147 

                        

          ADS Tactical, Inc.(10)

           

          Value-Added Logistics and Supply Chain Provider to the Defense Industry

                      

             

          LIBOR Plus 7.50% (Floor 0.75%), Current Coupon 9.19%, Secured Debt (Maturity — December 31, 2022)(9)

            13,014  12,767  12,833 

                        

          Aethon United BR LP(10)

           

          Oil & Gas Exploration & Production

                      

             

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 8.15%, Secured Debt (Maturity — September 8, 2023)(9)

            3,438  3,388  3,388 

                        

          Ahead, LLC(10)

           

          IT Infrastructure Value Added Reseller

                      

             

          LIBOR Plus 6.50%, Current Coupon 8.20%, Secured Debt (Maturity — November 2, 2020)

            11,061  10,848  11,130 

                        

          Allflex Holdings III Inc.(11)

           

          Manufacturer of Livestock Identification Products

                      

             

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.36%, Secured Debt (Maturity — July 19, 2021)(9)

            13,846  13,781  13,955 

                        

          American Scaffold Holdings, Inc.(10)

           

          Marine Scaffolding Service Provider

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 8.19%, Secured Debt (Maturity — March 31, 2022)(9)

            7,031  6,947  6,996 

                        

          American Teleconferencing Services, Ltd.(11)

           

          Provider of Audio Conferencing and Video Collaboration Solutions

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.90%, Secured Debt (Maturity — December 8, 2021)(9)

            10,582  9,934  10,443 

             

          LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.85%, Secured Debt (Maturity — June 6, 2022)(9)

            3,714  3,589  3,507 

                   13,523  13,950 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Anchor Hocking, LLC(11)

           

          Household Products Manufacturer

                      

             

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.49%, Secured Debt (Maturity — June 4, 2020)(9)

            2,254  2,211  2,248 

             

          Member Units (440,620 units)

               4,928  3,745 

                   7,139  5,993 

                        

          Apex Linen Service, Inc.

           

          Industrial Launderers

                      

             

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.36%, Secured Debt (Maturity — October 30, 2022)(9)

            2,400  2,400  2,400 

             

          16% Secured Debt (Maturity — October 30, 2022)

            14,416  14,347  14,347 

                   16,747  16,747 

                        

          Arcus Hunting LLC.(10)

           

          Manufacturer of Bowhunting and Archery Products and Accessories

                      

             

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.34%, Secured Debt (Maturity — November 13, 2019)(9)

            15,391  15,294  15,391 

                        

          ATI Investment Sub, Inc.(11)

           

          Manufacturer of Solar Tracking Systems

                      

             

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.82%, Secured Debt (Maturity — June 22, 2021)(9)

            7,364  7,215  7,346 

                        

          ATX Networks Corp.(11)(13)(21)

           

          Provider of Radio Frequency Management Equipment

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.33% / 1.00% PIK, Current Coupon Plus PIK 8.33%, Secured Debt (Maturity — June 11, 2021)(9)(19)

            9,567  9,454  9,507 

                        

          Berry Aviation, Inc.(10)

           

          Airline Charter Service Operator

                      

             

          13.75% Secured Debt (Maturity — January 30, 2020)

            5,627  5,598  5,627 

             

          Common Stock (553 shares)

               400  1,010 

                   5,998  6,637 

                        

          BigName Commerce, LLC(10)

           

          Provider of Envelopes and Complimentary Stationery Products

                      

             

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.59%, Secured Debt (Maturity — May 11, 2022)(9)

            2,488  2,461  2,461 

                        

          Binswanger Enterprises, LLC(10)

           

          Glass Repair and Installation Service Provider

                      

             

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.69%, Secured Debt (Maturity — March 9, 2022)(9)

            15,325  15,060  15,192 

             

          Member Units (1,050,000 units)

               1,050  1,000 

                   16,110  16,192 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Bluestem Brands, Inc.(11)

           

          Multi-Channel Retailer of General Merchandise

                      

             

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 9.07%, Secured Debt (Maturity — November 6, 2020)(9)

            12,127  11,955  8,540 

                        

          Brainworks Software, LLC(10)

           

          Advertising Sales and Newspaper Circulation Software

                      

             

          Prime Plus 9.25% (Floor 3.25%), Current Coupon 13.75%, Secured Debt (Maturity — July 22, 2019)(9)

            6,733  6,705  6,573 

                        

          Brightwood Capital Fund Investments(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (Brightwood Capital Fund III, LP) (Fully diluted 1.6%)(8)

               12,000  10,328 

             

          LP Interests (Brightwood Capital Fund IV, LP) (Fully diluted 0.8%)(8)

               1,000  1,063 

                   13,000  11,391 

                        

          Brundage-Bone Concrete Pumping, Inc.(11)

           

          Construction Services Provider

                      

             

          10.375% Secured Debt (Maturity — September 1, 2023)

            3,000  2,987  3,180 

                        

          Cadence Aerospace LLC(10)

           

          Aerostructure Manufacturing

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.91%, Secured Debt (Maturity — November 14, 2023)(9)

            15,000  14,853  14,853 

                        

          CapFusion, LLC(13)

           

          Non-Bank Lender to Small Businesses

                      

             

          13% Secured Debt (Maturity — March 25, 2021)(14)

            6,705  5,645  1,871 

                        

          California Pizza Kitchen, Inc.(11)

           

          Casual Restaurant Group

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.57%, Secured Debt (Maturity — August 23, 2022)(9)

            12,902  12,862  12,677 

                        

          CDHA Management, LLC(10)

           

          Dental Services

                      

             

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.76%, Secured Debt (Maturity — December 5, 2021)(9)

            5,365  5,303  5,365 

                        

          Central Security Group, Inc.(11)

           

          Security Alarm Monitoring Service Provider

                      

             

          LIBOR Plus 5.63% (Floor 1.00%), Current Coupon 7.19%, Secured Debt (Maturity — October 6, 2021)(9)

            7,481  7,462  7,518 

                        

          Cenveo Corporation(11)

           

          Provider of Commercial Printing, Envelopes, Labels, and Printed Office Products

                      

             

          6% Secured Debt (Maturity — August 1, 2019)

            19,130  17,126  13,582 

                        

          Charlotte Russe, Inc(11)

           

          Fast-Fashion Retailer to Young Women

                      

             

          LIBOR Plus 5.50% (Floor 1.25%), Current Coupon 6.89%, Secured Debt (Maturity — May 22, 2019)(9)

            19,041  16,473  7,807 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Clarius BIGS, LLC(10)

           

          Prints & Advertising Film Financing

                      

             

          15% PIK Secured Debt (Maturity — January 5, 2015)(14)(17)

            2,924  2,924  85 

                        

          Clickbooth.com, LLC(10)

           

          Provider of Digital Advertising Performance Marketing Solutions

                      

             

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 10.01%, Secured Debt (Maturity — December 5, 2022)(9)

            3,000  2,941  2,941 

                        

          Construction Supply Investments, LLC(10)

           

          Distribution Platform of Specialty Construction Materials to Professional Concrete and Masonry Contractors

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.57%, Secured Debt (Maturity — June 30, 2023)(9)

            7,125  7,090  7,090 

             

          Member Units (28,000 units)

               3,723  3,723 

                   10,813  10,813 

                        

          CTVSH, PLLC(10)

           

          Emergency Care and Specialty Service Animal Hospital

                      

             

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.48%, Secured Debt (Maturity — August 3, 2022)(9)

            11,850  11,739  11,739 

                        

          Darr Equipment LP(10)

           

          Heavy Equipment Dealer

                      

             

          11.5% Current / 1% PIK Secured Debt (Maturity - June 22, 2023)(19)

            7,229  7,229  7,229 

             

          Warrants (915,734 equivalent units; Expiration — December 23, 2023; Strike price — $1.50 per unit)

               474  10 

                   7,703  7,239 

                        

          Digital River, Inc.(11)

           

          Provider of Outsourced e-Commerce Solutions and Services

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 8.08%, Secured Debt (Maturity — February 12, 2021)(9)

            9,313  9,266  9,337 

                        

          Drilling Info Holdings, Inc.

           

          Information Services for the Oil and Gas Industry

                      

             

          Common Stock (3,788,865 shares)(8)

                 8,610 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          EnCap Energy Fund Investments(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (EnCap Energy Capital Fund VIII, L.P.) (Fully diluted 0.1%)(8)

               3,906  2,202 

             

          LP Interests (EnCap Energy Capital Fund VIII Co-Investors, L.P.) (Fully diluted 0.4%)

               2,227  1,549 

             

          LP Interests (EnCap Energy Capital Fund IX, L.P.) (Fully diluted 0.1%)(8)

               4,305  3,720 

             

          LP Interests (EnCap Energy Capital Fund X, L.P.) (Fully diluted 0.1%)(8)

               6,277  6,225 

             

          LP Interests (EnCap Flatrock Midstream Fund II, L.P.) (Fully diluted 0.8%)(8)

               6,138  6,116 

             

          LP Interests (EnCap Flatrock Midstream Fund III, L.P.) (Fully diluted 0.2%)

               3,458  3,828 

                   26,311  23,640 

                        

          Evergreen Skills Lux S.á r.l. (d/b/a Skillsoft)(11)(13)

           

          Technology-based Performance Support Solutions

                      

             

          LIBOR Plus 8.25% (Floor 1.00%), Current Coupon 9.82%, Secured Debt (Maturity — April 28, 2022)(9)

            6,999  6,878  6,244 

                        

          Extreme Reach, Inc.(11)

           

          Integrated TV and Video Advertising Platform

                      

             

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.95%, Secured Debt (Maturity — February 7, 2020)(9)

            10,411  10,397  10,398 

                        

          Felix Investments Holdings II(10)

           

          Oil & Gas Exploration & Production

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.90%, Secured Debt (Maturity — August 9, 2022)(9)

            3,333  3,267  3,267 

                        

          Flavors Holdings Inc.(11)

           

          Global Provider of Flavoring and Sweetening Products

                      

             

          LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 7.44%, Secured Debt (Maturity — April 3, 2020)(9)

            13,076  12,616  12,128 

                        

          GI KBS Merger Sub LLC(11)

           

          Outsourced Janitorial Services to Retail/Grocery Customers

                      

             

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.48%, Secured Debt (Maturity — October 29, 2021)(9)

            6,807  6,733  6,833 

             

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.88%, Secured Debt (Maturity — April 29, 2022)(9)

            3,915  3,769  3,793 

                   10,502  10,626 

                        

          GoWireless Holdings, Inc.(11)

           

          Provider of Wireless Telecommunications Carrier Services

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 8.16%, Secured Debt (Maturity — December 22, 2024)(9)

            18,000  17,820  17,865 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Grace Hill, LLC(10)

           

          Online Training Tools for the Multi-Family Housing Industry

                      

             

          Prime Plus 5.25% (Floor 1.00%), Current Coupon 9.75%, Secured Debt (Maturity — August 15, 2019)(9)

            1,215  1,208  1,215 

             

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.58%, Secured Debt (Maturity — August 15, 2019)(9)

            11,407  11,356  11,407 

                   12,564  12,622 

                        

          Great Circle Family Foods, LLC(10)

           

          Quick Service Restaurant Franchise

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.34%, Secured Debt (Maturity — October 28, 2019)(9)

            7,219  7,187  7,219 

                        

          Grupo Hima San Pablo, Inc.(11)

           

          Tertiary Care Hospitals

                      

             

          LIBOR Plus 7.00% (Floor 1.50%), Current Coupon 8.50%, Secured Debt (Maturity — January 31, 2018)(9)

            4,750  4,748  3,541 

             

          13.75% Secured Debt (Maturity — July 31, 2018)

            2,055  2,040  226 

                   6,788  3,767 

                        

          GST Autoleather, Inc.(11)

           

          Automotive Leather Manufacturer

                      

             

          PRIME Plus 6.50% (Floor 2.25%), Current Coupon 11.00%, Secured Debt (Maturity — April 5, 2018)(9)

            7,578  7,500  7,500 

             

          PRIME Plus 6.50% (Floor 2.00%), Current Coupon 11.00%, Secured Debt (Maturity — July 10, 2020)(9)

            15,619  15,120  11,813 

                   22,620  19,313 

                        

          Guitar Center, Inc.(11)

           

          Musical Instruments Retailer

                      

             

          6.5% Secured Debt (Maturity — April 15, 2019)

            16,625  16,009  15,378 

                        

          Hojeij Branded Foods, LLC(10)

           

          Multi-Airport, Multi- Concept Restaurant Operator

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.57%, Secured Debt (Maturity — July 20, 2022)(9)

            12,137  12,022  12,137 

                        

          Hoover Group, Inc.(10)(13)

           

          Provider of Storage Tanks and Related Products to the Energy and Petrochemical Markets

                      

             

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.70%, Secured Debt (Maturity — January 28, 2021)(9)

            8,460  7,986  7,783 

                        

          Hostway Corporation(11)

           

          Managed Services and Hosting Provider

                      

             

          LIBOR Plus 6.75% (Floor 1.25%), Current Coupon 8.44%, Secured Debt (Maturity — December 13, 2019)(9)

            20,150  19,796  19,621 

             

          LIBOR Plus 6.75% (Floor 1.25%), Current Coupon 8.44%, Secured Debt (Maturity — December 13, 2018)(9)

            12,406  11,575  11,692 

                   31,371  31,313 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Hunter Defense Technologies, Inc.(11)

           

          Provider of Military and Commercial Shelters and Systems

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.70%, Secured Debt (Maturity — August 5, 2019)(9)

            20,224  19,851  19,997 

                        

          Hydrofarm Holdings LLC(10)

           

          Wholesaler of Horticultural Products

                      

             

          LIBOR Plus 7.00%, Current Coupon 8.49%, Secured Debt (Maturity — May 12, 2022)

            6,708  6,588  6,699 

                        

          iEnergizer Limited(11)(13)(21)

           

          Provider of Business Outsourcing Solutions

                      

             

          LIBOR Plus 6.00% (Floor 1.25%), Current Coupon 7.57%, Secured Debt (Maturity — May 1, 2019)(9)

            11,005  10,764  10,977 

                        

          Implus Footcare, LLC(10)

           

          Provider of Footwear and Related Accessories

                      

             

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 8.44%, Secured Debt (Maturity — April 30, 2021)(9)

            19,372  19,115  19,243 

                        

          Indivior Finance LLC(11)(13)

           

          Specialty Pharmaceutical Company Treating Opioid Dependence

                      

             

          LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 5.50%, Secured Debt (Maturity — December 18, 2022)(9)

            1,176  1,171  1,182 

                        

          Industrial Services Acquisition, LLC(10)

           

          Industrial Cleaning Services

                      

             

          11.25% Current / 0.75% PIK Unsecured Debt (Maturity — December 17, 2022)(19)

            4,553  4,478  4,553 

             

          Member Units (Industrial Services Investments, LLC) (900,000 units)

               900  810 

                   5,378  5,363 

                        

          Inn of the Mountain Gods Resort and Casino(11)

           

          Hotel & Casino Owner & Operator

                      

             

          9.25% Secured Debt (Maturity — November 30, 2020)

            6,249  5,994  5,687 

                        

          iPayment, Inc.(11)

           

          Provider of Merchant Acquisition

                      

             

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.62%, Secured Debt (Maturity — April 11, 2023)(9)

            11,970  11,861  12,090 

                        

          iQor US Inc.(11)

           

          Business Process Outsourcing Services Provider

                      

             

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.69%, Secured Debt (Maturity — April 1, 2021)(9)

            990  983  986 

                        

          irth Solutions, LLC

           

          Provider of Damage Prevention Information Technology Services

                      

             

          Member Units (27,893 units)

               1,441  1,920 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Jacent Strategic Merchandising, LLC(10)

           

          General Merchandise Distribution

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 8.01%, Secured Debt (Maturity — September 16, 2020)(9)

            11,110  11,054  11,110 

                        

          Jackmont Hospitality, Inc.(10)

           

          Franchisee of Casual Dining Restaurants

                      

             

          LIBOR Plus 6.75% (Floor 1.00%), Current Coupon 8.32%, Secured Debt (Maturity — May 26, 2021)(9)

            4,390  4,379  4,390 

                        

          Jacuzzi Brands LLC(11)

           

          Manufacturer of Bath and Spa Products

                      

             

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.69%, Secured Debt (Maturity — June 28, 2023)(9)

            3,950  3,876  3,980 

                        

          Joerns Healthcare, LLC(11)

           

          Manufacturer and Distributor of Health Care Equipment & Supplies

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.48% Secured Debt (Maturity — May 9, 2020)(9)

            13,387  13,299  12,472 

                        

          Keypoint Government Solutions, Inc.(10)

           

          Provider of Pre-Employment Screening Services

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.35%, Secured Debt (Maturity — April 18, 2024)(9)

            12,031  11,921  12,031 

                        

          Larchmont Resources, LLC(11)

           

          Oil & Gas Exploration & Production

                      

             

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.53%, PIK Secured Debt (Maturity — August 7, 2020)(9)(19)

            2,418  2,418  2,394 

             

          Member Units (Larchmont Intermediate Holdco, LLC) (2,828 units)

               353  976 

                   2,771  3,370 

                        

          LKCM Headwater Investments I, L.P.(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (Fully diluted 2.3%)

               2,500  4,234 

                        

          Logix Acquisition Company, LLC(10)

           

          Competitive Local Exchange Carrier

                      

             

          LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 7.28%, Secured Debt (Maturity — August 9, 2024)(9)

            10,135  9,921  9,921 

                        

          Looking Glass Investments, LLC(12)(13)

           

          Specialty Consumer Finance

                      

             

          Member Units (2.5 units)

               125  57 

             

          Member Units (LGI Predictive Analytics LLC) (190,712 units)(8)

               108  92 

                   233  149 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          LSF9 Atlantis Holdings, LLC(11)

           

          Provider of Wireless Telecommunications Carrier Services

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.57%, Secured Debt (Maturity — May 1, 2023)(9)

            2,963  2,931  2,978 

                        

          Lulu's Fashion Lounge, LLC(10)

           

          Fast Fashion E-Commerce Retailer

                      

             

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.57%, Secured Debt (Maturity — August 28, 2022)(9)

            13,381  12,993  13,531 

                        

          Messenger, LLC(10)

           

          Supplier of Specialty Stationery and Related Products to the Funeral Industry

                      

             

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.74%, Secured Debt (Maturity — September 9, 2020)(9)

            17,331  17,249  17,331 

                        

          Minute Key, Inc.

           

          Operator of Automated Key Duplication Kiosks

                      

             

          Warrants (1,437,409 equivalent shares; Expiration — May 20, 2025; Strike price — $0.01 per share)

               280  1,170 

                        

          NBG Acquisition Inc(11)

           

          Wholesaler of Home Décor Products

                      

             

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 7.19%, Secured Debt (Maturity — April 26, 2024)(9)

            4,402  4,336  4,452 

                        

          New Media Holdings II LLC(11)(13)

           

          Local Newspaper Operator

                      

             

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.82%, Secured Debt (Maturity — July 14, 2022)(9)

            17,715  17,342  17,864 

                        

          NNE Partners, LLC(10)

           

          Oil & Gas Exploration & Production

                      

             

          LIBOR Plus 8.00%, Current Coupon 9.49%, Secured Debt (Maturity — March 2, 2022)

            11,958  11,854  11,854 

                        

          North American Lifting Holdings, Inc.(11)

           

          Crane Service Provider

                      

             

          LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 6.19%, Secured Debt (Maturity — November 27, 2020)(9)

            7,745  6,913  7,256 

                        

          Novetta Solutions, LLC(11)

           

          Provider of Advanced Analytics Solutions for Defense Agencies

                      

             

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.70%, Secured Debt (Maturity — October 17, 2022)(9)

            14,636  14,189  14,239 

                        

          NTM Acquisition Corp.(11)

           

          Provider of B2B Travel Information Content

                      

             

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.94%, Secured Debt (Maturity — June 7, 2022)(9)

            6,186  6,126  6,155 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Ospemifene Royalty Sub LLC (QuatRx)(10)

           

          Estrogen-Deficiency Drug Manufacturer and Distributor

                      

             

          11.5% Secured Debt (Maturity — November 15, 2026)(14)

            5,071  5,071  1,198 

                        

          P.F. Chang's China Bistro, Inc.(11)

           

          Casual Restaurant Group

                      

             

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.51%, Secured Debt (Maturity — September 1, 2022)(9)

            4,988  4,846  4,715 

                        

          Paris Presents Incorporated(11)

           

          Branded Cosmetic and Bath Accessories

                      

             

          LIBOR Plus 8.75% (Floor 1.00%), Current Coupon 10.32%, Secured Debt (Maturity — December 31, 2021)(9)

            4,500  4,471  4,477 

                        

          Parq Holdings Limited Partnership(11)(13)(21)

           

          Hotel & Casino Operator

                      

             

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 9.19%, Secured Debt (Maturity — December 17, 2020)(9)

            7,481  7,399  7,528 

                        

          Permian Holdco 2, Inc.(11)

           

          Storage Tank Manufacturer

                      

             

          14% PIK Unsecured Debt (Maturity — October 15, 2021)(19)

            306  306  306 

             

          Preferred Stock (Permian Holdco 1, Inc.) (154,558 units)

               799  980 

             

          Common Stock (Permian Holdco 1, Inc.) (154,558 units)

                 140 

                   1,105  1,426 

                        

          Pernix Therapeutics Holdings, Inc.(10)

           

          Pharmaceutical Royalty

                      

             

          12% Secured Debt (Maturity — August 1, 2020)

            3,129  3,129  1,971 

                        

          Point.360(10)

           

          Fully Integrated Provider of Digital Media Services

                      

             

          Warrants (65,463 equivalent shares; Expiration — July 7, 2020; Strike price — $0.75 per share)

               69   

             

          Common Stock (163,658 shares)

               273  11 

                   342  11 

                        

          PPC/SHIFT LLC(10)

           

          Provider of Digital Solutions to Automotive Industry

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.69%, Secured Debt (Maturity — December 22, 2021)(9)

            6,869  6,748  6,869 

                        

          Prowler Acquisition Corp.(11)

           

          Specialty Distributor to the Energy Sector

                      

             

          LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 6.19%, Secured Debt (Maturity — January 28, 2020)(9)

            12,830  11,332  12,253 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          PT Network, LLC(10)

           

          Provider of Outpatient Physical Therapy and Sports Medicine Services

                      

             

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.86%, Secured Debt (Maturity — November 30, 2021)(9)

            8,553  8,553  8,553 

                        

          QBS Parent, Inc.(11)

           

          Provider of Software and Services to the Oil & Gas Industry

                      

             

          LIBOR Plus 4.75% (Floor 1.00%), Current Coupon 6.13%, Secured Debt (Maturity — August 7, 2021)(9)

            14,272  14,114  14,165 

                        

          Research Now Group, Inc. and Survey Sampling International, LLC(11)

           

          Provider of Outsourced Online Surveying

                      

             

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 7.13%, Secured Debt (Maturity — December 20, 2024)(9)

            13,500  12,826  12,826 

                        

          Resolute Industrial, LLC(10)

           

          HVAC Equipment Rental and Remanufacturing

                      

             

          LIBOR Plus 7.62% (Floor 1.00%), Current Coupon 8.95%, Secured Debt (Maturity — July 26, 2022)(9)(25)

            17,088  16,770  16,770 

             

          Member Units (601 units)

               750  750 

                   17,520  17,520 

                        

          RGL Reservoir Operations Inc.(11)(13)(21)

           

          Oil & Gas Equipment and Services

                      

             

          1% Current / 9% PIK Secured Debt (Maturity — December 21, 2024)(19)

            721  407  407 

                        

          RM Bidder, LLC(10)

           

          Scripted and Unscripted TV and Digital Programming Provider

                      

             

          Warrants (327,532 equivalent units; Expiration — October 20, 2025; Strike price — $14.28 per unit)

               425   

             

          Member Units (2,779 units)

               46  20 

                   471  20 

                        

          SAFETY Investment Holdings, LLC

           

          Provider of Intelligent Driver Record Monitoring Software and Services

                      

             

          Member Units (2,000,000 units)

               2,000  1,670 

                        

          Salient Partners L.P.(11)

           

          Provider of Asset Management Services

                      

             

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.85%, Secured Debt (Maturity — June 9, 2021)(9)

            10,081  9,870  9,778 

           ��            

          SiTV, LLC(11)

           

          Cable Networks Operator

                      

             

          10.375% Secured Debt (Maturity — July 1, 2019)

            10,429  7,006  7,040 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          SMART Modular Technologies, Inc.(10)(13)

           

          Provider of Specialty Memory Solutions

                      

             

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.66%, Secured Debt (Maturity — August 9, 2022)(9)

            14,625  14,351  14,552 

                        

          Sorenson Communications, Inc.(11)

           

          Manufacturer of Communication Products for Hearing Impaired

                      

             

          LIBOR Plus 5.75% (Floor 2.25%), Current Coupon 8.00%, Secured Debt (Maturity — April 30, 2020)(9)

            13,234  13,170  13,341 

                        

          Staples Canada ULC(10)(13)(21)

           

          Office Supplies Retailer

                      

             

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.43%, Secured Debt (Maturity — September 12, 2023)(9)(22)

            20,000  19,617  18,891 

                        

          Strike, LLC(11)

           

          Pipeline Construction and Maintenance Services

                      

             

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — November 30, 2022)(9)

            9,500  9,250  9,643 

             

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.45%, Secured Debt (Maturity — May 30, 2019)(9)

            2,500  2,479  2,513 

                   11,729  12,156 

                        

          Subsea Global Solutions, LLC(10)

           

          Underwater Maintenance and Repair Services

                      

             

          LIBOR Plus 6.00% (Floor 1.50%), Current Coupon 7.50%, Secured Debt (Maturity — March 17, 2020)(9)

            7,687  7,637  7,687 

                        

          Synagro Infrastructure Company, Inc(11)

           

          Waste Management Services

                      

             

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 7.19%, Secured Debt (Maturity — August 22, 2020)(9)

            9,161  8,933  8,608 

                        

          Tectonic Holdings, LLC

           

          Financial Services Organization

                      

             

          Member Units (200,000 units)(8)

               2,000  2,320 

                        

          TE Holdings, LLC(11)

           

          Oil & Gas Exploration & Production

                      

             

          Member Units (97,048 units)

               970  158 

                        

          TeleGuam Holdings, LLC(11)

           

          Cable and Telecom Services Provider

                      

             

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 10.07%, Secured Debt (Maturity — April 12, 2024)(9)

            7,750  7,602  7,808 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          TGP Holdings III LLC(11)

           

          Outdoor Cooking & Accessories

                      

             

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.69%, Secured Debt (Maturity — September 25, 2024)(9)

            6,898  6,820  6,969 

             

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 10.19%, Secured Debt (Maturity — September 25, 2025)(9)

            5,000  4,927  5,075 

                   11,747  12,044 

                        

          The Container Store, Inc.(11)

           

          Operator of Stores Offering Storage and Organizational Products

                      

             

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.69%, Secured Debt (Maturity — August 15, 2021)(9)

            9,938  9,660  9,652 

                        

          TMC Merger Sub Corp.(11)

           

          Refractory & Maintenance Services Provider

                      

             

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.88%, Secured Debt (Maturity — October 31, 2022)(9)(26)

            17,653  17,516  17,741 

                        

          TOMS Shoes, LLC(11)

           

          Global Designer, Distributor, and Retailer of Casual Footwear

                      

             

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.98%, Secured Debt (Maturity — October 30, 2020)(9)

            4,875  4,610  2,901 

                        

          Turning Point Brands, Inc.(10)(13)

           

          Marketer/Distributor of Tobacco Products

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.61%, Secured Debt (Maturity — May 17, 2022)(9)(25)

            8,436  8,364  8,605 

                        

          TVG-I-E CMN ACQUISITION, LLC(10)

           

          Organic Lead Generation for Online Postsecondary Schools

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.56%, Secured Debt (Maturity — November 3, 2021)(9)

            8,170  8,031  8,170 

                        

          Tweddle Group, Inc.(11)

           

          Provider of Technical Information Services to Automotive OEMs

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.38%, Secured Debt (Maturity — October 21, 2022)(9)

            6,114  6,011  6,023 

                        

          U.S. TelePacific Corp.(11)

           

          Provider of Communications and Managed Services

                      

             

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.69%, Secured Debt (Maturity — May 2, 2023)(9)

            20,703  20,507  19,862 

                        

          US Joiner Holding Company(11)

           

          Marine Interior Design and Installation

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.70%, Secured Debt (Maturity — April 16, 2020)(9)

            13,465  13,366  13,398 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          VIP Cinema Holdings, Inc.(11)

           

          Supplier of Luxury Seating to the Cinema Industry

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.70%, Secured Debt (Maturity — March 1, 2023)(9)

            7,700  7,666  7,777 

                        

          Vistar Media, Inc.(10)

           

          Operator of Digital Out-of-Home Advertising Platform

                      

             

          LIBOR Plus 10.00% (Floor 1.00%), Current Coupon 11.69%, Secured Debt (Maturity — February 16, 2022)(9)

            3,319  3,048  3,102 

             

          Warrants (70,207 equivalent shares; Expiration — February 17, 2027; Strike price — $0.01 per share)

               331  499 

                   3,379  3,601 

                        

          Wellnext, LLC(10)

           

          Manufacturer of Supplements and Vitamins

                      

             

          LIBOR Plus 10.10% (Floor 1.00%), Current Coupon 11.67%, Secured Debt (Maturity — July 21, 2022)(9)(23)

            9,930  9,857  9,930 

                        

          Wireless Vision Holdings, LLC(10)

           

          Provider of Wireless Telecommunications Carrier Services

                      

             

          LIBOR Plus 8.91% (Floor 1.00%), Current Coupon 10.27%, Secured Debt (Maturity — September 29, 2022)(9)(24)

            12,932  12,654  12,654 

                        

          Wirepath LLC(11)

           

          E-Commerce Provider into Connected Home Market

                      

             

          LIBOR Plus 5.25% (Floor 1.00%), Current Coupon 6.87%, Secured Debt (Maturity — August 5, 2024)(9)

            4,988  4,964  5,055 

                        

          Zilliant Incorporated

           

          Price Optimization and Margin Management Solutions

                      

             

          Preferred Stock (186,777 shares)

               154  260 

             

          Warrants (952,500 equivalent shares; Expiration — June 15, 2022; Strike price — $0.001 per share)

               1,071  1,189 

                   1,225  1,449 

          Subtotal Non-Control/Non-Affiliate Investments (49.8% of total investments at fair value)

           $1,107,447 $1,081,745 

          Total Portfolio Investments, December 31, 2017

           $2,004,798 $2,171,305 

          (1)
          All investments are Lower Middle Market portfolio investments, unless otherwise noted. See Note B for a description of Lower Middle Market portfolio investments. All of the Company's investments, unless otherwise noted, are encumbered either as security for the Company's Credit Agreement or in support of the SBA-guaranteed debentures issued by the Funds.

          (2)
          Debt investments are income producing, unless otherwise noted. Equity and warrants are non-income producing, unless otherwise noted.

          (3)
          See Note C for a summary of geographic location of portfolio companies.

          (4)
          Principal is net of repayments. Cost is net of repayments and accumulated unearned income.

          (5)
          Control investments are defined by the Investment Company Act of 1940, as amended ("1940 Act") as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2017
          (dollars in thousands)

          (6)
          Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as Control investments.

          (7)
          Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

          (8)
          Income producing through dividends or distributions.

          (9)
          Index based floating interest rate is subject to contractual minimum interest rate. A majority of the variable rate loans in the Company's investment portfolio bear interest at a rate that may be determined by reference to either LIBOR or an alternate Base Rate (commonly based on the Federal Funds Rate or the Prime Rate), which typically resets semi-annually, quarterly, or monthly at the borrower's option. The borrower may also elect to have multiple interest reset periods for each loan. For each such loan, the Company has provided the weighted average annual stated interest rate in effect at December 31, 2017. As noted in this schedule, 67% of the loans (based on the par amount) contain LIBOR floors which range between 0.50% and 2.25%, with a weighted-average LIBOR floor of approximately 1.02%.

          (10)
          Private Loan portfolio investment. See Note B for a description of Private Loan portfolio investments.

          (11)
          Middle Market portfolio investment. See Note B for a description of Middle Market portfolio investments.

          (12)
          Other Portfolio investment. See Note B for a description of Other Portfolio investments.

          (13)
          Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.

          (14)
          Non-accrual and non-income producing investment.

          (15)
          Portfolio company is in a bankruptcy process and, as such, the maturity date of our debt investments in this portfolio company will not be finally determined until such process is complete. As noted in footnote (14), our debt investments in this portfolio company are on non-accrual status.

          (16)
          External Investment Manager. Investment is not encumbered as security for the Company's Credit Agreement or in support of the SBA-guaranteed debentures issued by the Funds.

          (17)
          Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.

          (18)
          Investment fair value was determined using significant unobservable inputs, unless otherwise noted. See Note C for further discussion.

          (19)
          PIK interest income and cumulative dividend income represent income not paid currently in cash.

          (20)
          All portfolio company headquarters are based in the United States, unless otherwise noted.

          (21)
          Portfolio company headquarters are located outside of the United States.

          (22)
          In connection with the Company's debt investment in Staples Canada ULC to help mitigate any potential adverse change in foreign exchange rates during the term of the Company's investment, the Company entered into a forward foreign currency contract with Cadence Bank to lend $24.2 million Canadian Dollars and receive $20.0 million U.S. Dollars with a settlement date of September 12, 2018. The unrealized appreciation on the forward foreign currency contract is $0.7 million as of December 31, 2017. This unrealized appreciation is offset by the foreign currency translation depreciation on the investment.

          (23)
          The Company has entered into an intercreditor agreement that entitles the CompanyNotes to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 7.50% (Floor 1.00%) per the Credit Agreement and the Consolidated Schedule of Investments above reflects such higher rate.

          (24)
          The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 8.50% (Floor 1.00%) per the Credit Agreement and the Consolidated Schedule of Investments above reflects such higher rate.

          (25)
          As part of the credit agreement with the portfolio company, the Company is entitled to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche receives priority over the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. The rate the Company receives per the Credit Agreement is the same as the rate reflected in the Consolidated Schedule of Investments above.

          (26)
          The Company has entered into an intercreditor agreement that entitles the Company to the "first out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a lower interest rate than the contractual stated interest rate of LIBOR plus 6.64% (Floor 1.00%) per the Credit Agreement and the Consolidated Schedule of Investments above reflects such lower rate.

          Financial Statements

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Control Investments(5)

           

           

           

           

                    

                        

          Access Media Holdings, LLC(10)

           

          Private Cable Operator

                      

             

          5% Current / 5% PIK Secured Debt (Maturity — July 22, 2020)(19)

           $22,664 $22,664 $19,700 

             

          Preferred Member Units (6,581,250 units)

               6,475  240 

             

          Member Units (45 units)

               1   

                   29,140  19,940 

                        

          Ameritech College Operations, LLC

           

          For-Profit Nursing and Healthcare College

                      

             

          10% Secured Debt (Maturity — November 30, 2019)

            514  514  514 

             

          13% Secured Debt (Maturity — November 30, 2019)

            489  489  489 

             

          13% Secured Debt (Maturity — January 31, 2020)

            3,025  3,025  3,025 

             

          Preferred Member Units (294 units)

               2,291  2,291 

                   6,319  6,319 

                        

          ASC Interests, LLC

           

          Recreational and Educational Shooting Facility

                      

             

          11% Secured Debt (Maturity — July 31, 2018)

            2,100  2,084  2,100 

             

          Member Units (1,500 units)(8)

               1,500  2,680 

                   3,584  4,780 

                        

          Bond-Coat, Inc.

           

          Casing and Tubing Coating Services

                      

             

          12% Secured Debt (Maturity — December 28, 2017)

            11,596  11,556  11,596 

             

          Common Stock (57,508 shares)

               6,350  6,660 

                   17,906  18,256 

                        

          Café Brazil, LLC

           

          Casual Restaurant Group

                      

             

          Member Units (1,233 units)(8)

               1,742  6,040 

                        

          CBT Nuggets, LLC

           

          Produces and Sells IT Training Certification Videos

                      

             

          Member Units (416 units)(8)

               1,300  55,480 

                        

          Clad-Rex Steel, LLC

           

          Specialty Manufacturer of Vinyl-Clad Metal

                      

             

          LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity — December 20, 2018)(9)

            400  396  396 

             

          LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity — December 20, 2021)(9)

            14,080  13,941  13,941 

             

          Member Units (717 units)

               7,280  7,280 

             

          10% Secured Debt (Clad-Rex Steel RE Investor, LLC) (Maturity — December 20, 2036)

            1,202  1,190  1,190 

             

          Member Units (Clad-Rex Steel RE Investor, LLC) (800 units)

               210  210 

                   23,017  23,017 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          CMS Minerals Investments

           

          Oil & Gas Exploration & Production

                      

             

          Preferred Member Units (CMS Minerals LLC) (458 units)(8)

               2,104  3,682 

             

          Member Units (CMS Minerals II, LLC) (100 units)(8)

               3,829  3,381 

                   5,933  7,063 

                        

          Datacom, LLC

           

          Technology and Telecommunications Provider

                      

             

          8% Secured Debt (Maturity — May 30, 2017)

            900  900  900 

             

          5.25% Current / 5.25% PIK Secured Debt (Maturity — May 30, 2019)(19)

            11,713  11,651  11,049 

             

          Class A Preferred Member Units

               1,181  1,368 

             

          Class B Preferred Member Units (6,453 units)

               6,030  1,529 

                   19,762  14,846 

                        

          Gamber-Johnson Holdings, LLC

           

          Manufacturer of Ruggedized Computer Mounting Systems

                      

             

          LIBOR Plus 11.00% (Floor 1.00%), Current Coupon 12.00%, Secured Debt (Maturity — June 24, 2021)(9)

            24,080  23,846  23,846 

             

          Member Units (8,619 units)

               14,844  18,920 

                   38,690  42,766 

                        

          Garreco, LLC

           

          Manufacturer and Supplier of Dental Products

                      

             

          14% Secured Debt (Maturity — January 12, 2018)

            5,250  5,219  5,219 

             

          Member Units (1,200 units)

               1,200  1,150 

                   6,419  6,369 

                        

          GRT Rubber Technologies LLC

           

          Manufacturer of Engineered Rubber Products

                      

             

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, Secured Debt (Maturity — December 19, 2019)(9)

            13,274  13,188  13,274 

             

          Member Units (5,879 units)(8)

               13,065  20,310 

                   26,253  33,584 

                        

          Gulf Manufacturing, LLC

           

          Manufacturer of Specialty Fabricated Industrial Piping Products

                      

             

          9% PIK Secured Debt (Ashland Capital IX, LLC) (Maturity — June 30, 2017)(19)

            777  777  777 

             

          Member Units (438 units)(8)

               2,980  8,770 

                   3,757  9,547 

                        

          Gulf Publishing Holdings, LLC

           

          Energy Industry Focused Media and Publishing

                      

             

          12.5% Secured Debt (Maturity — April 29, 2021)

            10,000  9,911  9,911 

             

          Member Units (3,124 units)

               3,124  3,124 

                   13,035  13,035 

                        

          Harrison Hydra-Gen, Ltd.

           

          Manufacturer of Hydraulic Generators

                      

             

          Common Stock (107,456 shares)(8)

               718  3,120 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Hawthorne Customs and Dispatch Services, LLC

           

          Facilitator of Import Logistics, Brokerage, and Warehousing

                      

             

          Member Units (500 units)

               589  280 

             

          Member Units (Wallisville Real Estate, LLC) (588,210 units)(8)

               1,215  2,040 

                   1,804  2,320 

                        

          HW Temps LLC

           

          Temporary Staffing Solutions

                      

             

          LIBOR Plus 13.00% (Floor 1.00%), Current Coupon 14.00%, Secured Debt (Maturity July 2, 2020)(9)

            10,576  10,500  10,500 

             

          Preferred Member Units (3,200 units)(8)

               3,942  3,940 

                   14,442  14,440 

                        

          Hydratec, Inc.

           

          Designer and Installer of Micro-Irrigation Systems

                      

             

          Common Stock (7,095 shares)(8)

               7,095  15,640 

                        

          IDX Broker, LLC

           

          Provider of Marketing and CRM Tools for the Real Estate Industry

                      

             

          12.5% Secured Debt (Maturity — November 15, 2018)

            10,950  10,904  10,950 

             

          Member Units (5,400 units)(8)

               5,606  7,040 

                   16,510  17,990 

                        

          Indianapolis Aviation Partners, LLC

           

          Fixed Base Operator

                      

             

          15% Secured Debt (Maturity — January 15, 2017)

            3,100  3,100  3,100 

             

          Warrants (1,046 equivalent units; Expiration — September 15, 2019; Strike price — $0.01 per unit)

               1,129  2,649 

                   4,229  5,749 

                        

          Jensen Jewelers of Idaho, LLC

           

          Retail Jewelry Store

                      

             

          Prime Plus 6.75% (Floor 2.00%), Current Coupon 10.25%, Secured Debt (Maturity — November 14, 2019)(9)

            4,055  3,996  4,055 

             

          Member Units (627 units)(8)

               811  4,460 

                   4,807  8,515 

                        

          Lamb Ventures, LLC

           

          Aftermarket Automotive Services Chain

                      

             

          11% Secured Debt (Maturity — May 31, 2018)

            7,657  7,657  7,657 

             

          Preferred Equity (non-voting)

               400  400 

             

          Member Units (742 units)(8)

               5,273  5,990 

             

          9.5% Secured Debt (Lamb's Real Estate Investment I, LLC) (Maturity — December 31, 2041)

            1,170  1,170  1,170 

             

          Member Units (Lamb's Real Estate Investment I, LLC) (1,000 units)(8)

               625  1,340 

                   15,125  16,557 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Lighting Unlimited, LLC

           

          Commercial and Residential Lighting Products and Design Services

                      

             

          8% Secured Debt (Maturity — August 22, 2017)

            1,514  1,514  1,514 

             

          Preferred Equity (non-voting)

               434  410 

             

          Warrants (71 equivalent units; Expiration — June 14, 2021; Strike price — $0.01 per unit)

               54   

             

          Member Units (700 units)

               100   

                   2,102  1,924 

                        

          Marine Shelters Holdings, LLC

           

          Fabricator of Marine and Industrial Shelters

                      

             

          12% PIK Secured Debt (Maturity — December 28, 2017)(14)

            9,967  9,914  9,387 

             

          Preferred Member Units (3,810 units)

               5,352   

                   15,266  9,387 

                        

          MH Corbin Holding LLC

           

          Manufacturer and Distributor of Traffic Safety Products

                      

             

          10% Secured Debt (Maturity — August 31, 2020)

            13,300  13,197  13,197 

             

          Preferred Member Units (4,000 shares)

               6,000  6,000 

                   19,197  19,197 

                        

          Mid-Columbia Lumber Products, LLC

           

          Manufacturer of Finger-Jointed Lumber Products

                      

             

          10% Secured Debt (Maturity — December 18, 2017)

            1,750  1,750  1,750 

             

          12% Secured Debt (Maturity — December 18, 2017)

            3,900  3,900  3,900 

             

          Member Units (3,554 units)

               1,810  2,480 

             

          9.5% Secured Debt (Mid — Columbia Real Estate, LLC) (Maturity — May 13, 2025)

            836  836  836 

             

          Member Units (Mid — Columbia Real Estate, LLC) (250 units)(8)

               250  600 

                   8,546  9,566 

                        

          MSC Adviser I, LLC(16)

           

          Third Party Investment Advisory Services

                      

             

          Member Units (Fully diluted 100.0%)(8)

                 30,617 

                        

          Mystic Logistics Holdings, LLC

           

          Logistics and Distribution Services Provider for Large Volume Mailers

                      

             

          12% Secured Debt (Maturity — August 15, 2019)

            9,176  9,053  9,176 

             

          Common Stock (5,873 shares)

               2,720  5,780 

                   11,773  14,956 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          NAPCO Precast, LLC

           

          Precast Concrete Manufacturing

                      

             

          Prime Plus 2.00% (Floor 7.00%), Current Coupon 9.00%, Secured Debt (Maturity — February 1, 2019)(9)

            2,713  2,693  2,713 

             

          18% Secured Debt (Maturity — February 1, 2019)

            3,952  3,922  3,952 

             

          Member Units (2,955 units)(8)

               2,975  10,920 

                   9,590  17,585 

                        

          NRI Clinical Research, LLC

           

          Clinical Research Service Provider

                      

             

          LIBOR Plus 6.50% (Floor 1.50%), Current Coupon 8.00%, Secured Debt (Maturity — September 8, 2017)(9)

            200  200  200 

             

          14% Secured Debt (Maturity — September 8, 2017)

            4,261  4,228  4,261 

             

          Warrants (251,723 equivalent units; Expiration — September 8, 2021; Strike price — $0.01 per unit)

               252  680 

             

          Member Units (1,454,167 units)

               765  2,462 

                   5,445  7,603 

                        

          NRP Jones, LLC

           

          Manufacturer of Hoses, Fittings and Assemblies

                      

             

          6% Current / 6% PIK Secured Debt (Maturity — December 22, 2016)(17)(19)

            13,915  13,915  13,915 

             

          Warrants (14,331 equivalent units; Expiration — December 22, 2022; Strike price — $0.01 per unit)

               817  130 

             

          Member Units (50,877 units)

               2,900  410 

                   17,632  14,455 

                        

          OMi Holdings, Inc.

           

          Manufacturer of Overhead Cranes

                      

             

          Common Stock (1,500 shares)(8)

               1,080  13,080 

                        

          Pegasus Research Group, LLC

           

          Provider of Telemarketing and Data Services

                      

             

          Member Units (460 units)(8)

               1,290  8,620 

                        

          PPL RVs, Inc.

           

          Recreational Vehicle Dealer

                      

             

          LIBOR Plus 7.00% (Floor 0.50%), Current Coupon 7.93%, Secured Debt (Maturity — November 15, 2021)(9)

            18,000  17,826  17,826 

             

          Common Stock (1,962 shares)(8)

               2,150  11,780 

                   19,976  29,606 

                        

          Principle Environmental, LLC

           

          Noise Abatement Service Provider

                      

             

          12% Secured Debt (Maturity — April 30, 2017)

            4,060  4,060  4,060 

             

          12% Current / 2% PIK Secured Debt (Maturity — April 30, 2017)(19)

            3,378  3,378  3,378 

             

          Preferred Member Units (19,631 units)

               4,663  5,370 

             

          Warrants (1,036 equivalent units; Expiration — January 31, 2021; Strike price — $0.01 per unit)

               1,200  270 

                   13,301  13,078 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Quality Lease Service, LLC

           

          Provider of Rigsite Accommodation Unit Rentals and Related Services

                      

             

          8% PIK Secured Debt (Maturity — June 8, 2020)(19)

            7,068  7,068  7,068 

             

          Member Units (1,000 units)

               1,118  3,188 

                   8,186  10,256 

                        

          River Aggregates, LLC

           

          Processor of Construction Aggregates

                      

             

          Zero Coupon Secured Debt (Maturity — June 30, 2018)

            750  627  627 

             

          Member Units (1,150 units)(8)

               1,150  4,600 

             

          Member Units (RA Properties, LLC) (1,500 units)

               369  2,510 

                   2,146  7,737 

                        

          SoftTouch Medical Holdings LLC

           

          Provider of In-Home Pediatric Durable Medical Equipment

                      

             

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, Secured Debt (Maturity — October 31, 2019)(9)

            7,140  7,096  7,140 

             

          Member Units (4,450 units)(8)

               4,930  9,170 

                   12,026  16,310 

                        

          The MPI Group, LLC

           

          Manufacturer of Custom Hollow Metal Doors, Frames and Accessories

                      

             

          9% Secured Debt (Maturity — October 2, 2018)

            2,924  2,922  2,922 

             

          Series A Preferred Units (2,500 units)

               2,500   

             

          Warrants (1,424 equivalent units; Expiration — July 1, 2024; Strike price — $0.01 per unit)

               1,096   

             

          Member Units (MPI Real Estate Holdings, LLC) (100 units)(8)

               2,300  2,300 

                   8,818  5,222 

                        

          Uvalco Supply, LLC

           

          Farm and Ranch Supply Store

                      

             

          9% Secured Debt (Maturity — January 1, 2019)

            872  872  872 

             

          Member Units (2,011 units)(8)

               3,843  4,640 

                   4,715  5,512 

                        

          Vision Interests, Inc.

           

          Manufacturer / Installer of Commercial Signage

                      

             

          13% Secured Debt (Maturity — December 23, 2018)

            2,814  2,814  2,814 

             

          Series A Preferred Stock (3,000,000 shares)

               3,000  3,000 

             

          Common Stock (1,126,242 shares)

               3,706   

                   9,520  5,814 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Ziegler's NYPD, LLC

           

          Casual Restaurant Group

                      

             

          6.5% Secured Debt (Maturity — October 1, 2019)

            1,000  994  994 

             

          12% Secured Debt (Maturity — October 1, 2019)

            300  300  300 

             

          14% Secured Debt (Maturity — October 1, 2019)

            2,750  2,750  2,750 

             

          Warrants (587 equivalent units; Expiration — September 29, 2018; Strike price — $0.01 per unit)

               600  240 

             

          Preferred Member Units (10,072 units)

               2,834  4,100 

                   7,478  8,384 

          Subtotal Control Investments (29.8% of total investments at fair value)

           $439,674 $594,282 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Affiliate Investments(6)

           

           

           

           

                    

                        

          AFG Capital Group, LLC

           

          Provider of Rent-to-Own Financing Solutions and Services

                      

             

          Warrants (42 equivalent units; Expiration — November 7, 2024; Strike price — $0.01 per unit)

              $259 $670 

             

          Member Units (186 units)(8)

               1,200  2,750 

                   1,459  3,420 

                        

          Barfly Ventures, LLC(10)

           

          Casual Restaurant Group

                      

             

          12% Secured Debt (Maturity — August 31, 2020)

            5,958  5,860  5,827 

             

          Options (2 equivalent units)

               397  490 

             

          Warrant (1 equivalent unit; Expiration — August 31, 2025; Strike price — $1.00 per unit)

               473  280 

                   6,730  6,597 

                        

          BBB Tank Services, LLC

           

          Maintenance, Repair and Construction Services to the Above-Ground Storage Tank Market

                      

             

          LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity — April 8, 2021)(9)

            800  797  797 

             

          15% Current Secured Debt (Maturity — April 8, 2021)

            4,027  3,991  3,991 

             

          Member Units (800,000 units)

               800  800 

                   5,588  5,588 

                        

          Boss Industries, LLC

           

          Manufacturer and Distributor of Air, Power and Other Industrial Equipment

                      

             

          Preferred Member Units (2,242 units)(8)

               2,426  2,800 

                        

          Bridge Capital Solutions Corporation

           

          Financial Services and Cash Flow Solutions Provider

                      

             

          13% Secured Debt (Maturity — July 25, 2021)

            7,500  5,610  5,610 

             

          Warrants (63 equivalent shares; Expiration — April 18, 2022; Strike price — $0.01 per share)

               2,132  3,370 

             

          13% Secured Debt (Mercury Service Group, LLC) (Maturity — July 25, 2021)

            1,000  991  1,000 

             

          Preferred Member Units (Mercury Service Group, LLC) (17,742 units)(8)

               1,000  1,000 

                   9,733  10,980 

                        

          Buca C, LLC

           

          Casual Restaurant Group

                      

             

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — June 30, 2020)(9)

            22,671  22,504  22,671 

             

          Preferred Member Units (6 units; 6% cumulative)(8)(19)

               3,937  4,660 

                   26,441  27,331 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          CAI Software LLC

           

          Provider of Specialized Enterprise Resource Planning Software

                      

             

          12% Secured Debt (Maturity — October 10, 2019)

            3,683  3,660  3,683 

             

          Member Units (65,356 units)(8)

               654  2,480 

                   4,314  6,163 

                        

          CapFusion, LLC(13)

           

          Non-Bank Lender to Small Businesses

                      

             

          13% Secured Debt (Maturity — March 25, 2021)

            14,400  13,202  13,202 

             

          Warrants (1,600 equivalent units; Expiration — March 24, 2026; Strike price — $0.01 per unit)

               1,200  1,200 

                   14,402  14,402 

                        

          Chandler Signs Holdings, LLC(10)

           

          Sign Manufacturer

                      

             

          12% Secured Debt (Maturity — July 4, 2021)

            4,500  4,461  4,500 

             

          Class A Units (1,500,000 units)(8)

               1,500  3,240 

                   5,961  7,740 

                        

          Condit Exhibits, LLC

           

          Tradeshow Exhibits / Custom Displays Provider

                      

             

          Member Units (3,936 units)(8)

               100  1,840 

                        

          Congruent Credit Opportunities Funds(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (Congruent Credit Opportunities Fund II, LP) (Fully diluted 19.8%)(8)

               5,730  1,518 

             

          LP Interests (Congruent Credit Opportunities Fund III, LP) (Fully diluted 17.4%)(8)

               15,754  16,181 

                   21,484  17,699 

                        

          Daseke, Inc.

           

          Specialty Transportation Provider

                      

             

          12% Current / 2.5% PIK Secured Debt (Maturity — July 31, 2018)(19)

            21,799  21,632  21,799 

             

          Common Stock (19,467 shares)

               5,213  24,063 

                   26,845  45,862 

                        

          Dos Rios Partners(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (Dos Rios Partners, LP) (Fully diluted 20.2%)

               5,996  4,925 

             

          LP Interests (Dos Rios Partners — A, LP) (Fully diluted 6.4%)

               1,904  1,444 

                   7,900  6,369 

                        

          Dos Rios Stone Products LLC(10)

           

          Limestone and Sandstone Dimension Cut Stone Mining Quarries

                      

             

          Class A Units (2,000,000 units)(8)

               2,000  2,070 

                        

          East Teak Fine Hardwoods, Inc.

           

          Distributor of Hardwood Products

                      

             

          Common Stock (6,250 shares)(8)

               480  860 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          East West Copolymer & Rubber, LLC

           

          Manufacturer of Synthetic Rubbers

                      

             

          12% Current / 2% PIK Secured Debt (Maturity — October 17, 2019)(19)

            9,699  9,591  8,630 

             

          Warrants (2,510,790 equivalent units; Expiration — October 15, 2024; Strike price — $0.01 per unit)

               50   

                   9,641  8,630 

                        

          EIG Fund Investments(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (EIG Global Private Debt fund-A, L.P.) (Fully diluted 11.1%)(8)

               2,804  2,804 

                        

          EIG Traverse Co-Investment, L.P.(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (Fully diluted 22.2%)(8)

               9,805  9,905 

                        

          Freeport Financial Funds(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (Freeport Financial SBIC Fund LP) (Fully diluted 9.3%)(8)

               5,974  5,620 

             

          LP Interests (Freeport First Lien Loan Fund III LP) (Fully diluted 6.0%)(8)

               4,763  4,763 

                   10,737  10,383 

                        

          Gault Financial, LLC (RMB Capital, LLC)

           

          Purchases and Manages Collection of Healthcare and other Business Receivables

                      

             

          10% Current Secured Debt (Maturity — January 1, 2019)

            13,046  13,046  11,079 

             

          Warrants (29,025 equivalent units; Expiration — February 9, 2022; Strike price — $0.01 per unit)

               400   

                   13,446  11,079 

                        

          Glowpoint, Inc.

           

          Provider of Cloud Managed Video Collaboration Services

                      

             

          12% Secured Debt (Maturity — October 18, 2018)

            9,000  8,949  3,997 

             

          Common Stock (7,711,517 shares)(24)

               3,958  2,080 

                   12,907  6,077 

                        

          Guerdon Modular Holdings, Inc.

           

          Multi-Family and Commercial Modular Construction Company

                      

             

          9% Current / 4% PIK Secured Debt (Maturity — August 13, 2019)(19)

            10,708  10,594  10,594 

             

          Preferred Stock (404,998 shares)

               1,140  1,140 

             

          Common Stock (212,033 shares)

               2,983  80 

                   14,717  11,814 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Hawk Ridge Systems, LLC(13)

           

          Value-Added Reseller of Engineering Design and Manufacturing Solutions

                      

             

          10% Secured Debt (Maturity — December 2, 2021)

            10,000  9,901  9,901 

             

          Preferred Member Units (226 units)(8)

               2,850  2,850 

             

          Preferred Member Units (HRS Services, ULC) (226 units)

               150  150 

                   12,901  12,901 

                        

          Houston Plating and Coatings, LLC

           

          Provider of Plating and Industrial Coating Services

                      

             

          Member Units (265,756 units)

               1,429  4,000 

                        

          I-45 SLF LLC(12)(13)

           

          Investment Partnership

                      

             

          Member units (Fully diluted 20.0%; 24.4% profits interest)(8)

               14,200  14,586 

                        

          Indianhead Pipeline Services, LLC

           

          Provider of Pipeline Support Services

                      

             

          12% Secured Debt (Maturity — February 6, 2017)

            5,100  5,079  5,079 

             

          Preferred Member Units (33,819 units; 8% cumulative)(8)(19)

               2,339  2,677 

             

          Warrants (31,928 equivalent units; Expiration — August 6, 2022; Strike price — $0.001 per unit)

               459   

             

          Member Units (14,732 units)

               1   

                   7,878  7,756 

                        

          KBK Industries, LLC

           

          Manufacturer of Specialty Oilfield and Industrial Products

                      

             

          10% Secured Debt (Maturity — September 28, 2017)

            1,250  1,250  1,250 

             

          12.5% Secured Debt (Maturity — September 28, 2017)

            5,900  5,889  5,889 

             

          Member Units (250 units)

               341  2,780 

                   7,480  9,919 

                        

          L.F. Manufacturing Holdings, LLC(10)

           

          Manufacturer of Fiberglass Products

                      

             

          Member Units (2,179,001 units)

               2,019  1,380 

                        

          OnAsset Intelligence, Inc.

           

          Provider of Transportation Monitoring / Tracking Products and Services

                      

             

          12% PIK Secured Debt (Maturity — December 31, 2015)(17)(19)

            4,519  4,519  4,519 

             

          Preferred Stock (912 shares)

               1,981   

             

          Warrants (5,333 equivalent shares; Expiration — April 18, 2021; Strike price — $0.01 per share)

               1,919   

                   8,419  4,519 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          OPI International Ltd.(13)

           

          Provider of Man Camp and Industrial Storage Services

                      

             

          10% Unsecured Debt (Maturity — April 8, 2018)

            473  473  473 

             

          Common Stock (20,766,317 shares)

               1,371  1,600 

                   1,844  2,073 

                        

          PCI Holding Company, Inc.

           

          Manufacturer of Industrial Gas Generating Systems

                      

             

          12% Secured Debt (Maturity — March 31, 2019)

            13,000  12,898  13,000 

             

          Preferred Stock (1,500,000 shares; 20% cumulative)(8)(19)

               3,379  5,370 

                   16,277  18,370 

                        

          Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)

           

          Provider of Rigsite Accommodation Unit Rentals and Related Services

                      

             

          12% Secured Debt (Maturity — January 8, 2018)(14)(15)

            30,785  30,281  250 

             

          Preferred Member Units (250 units)

               2,500   

                   32,781  250 

                        

          Tin Roof Acquisition Company

           

          Casual Restaurant Group

                      

             

          12% Secured Debt (Maturity — November 13, 2018)

            13,511  13,385  13,385 

             

          Class C Preferred Stock (Fully diluted 10.0%; 10% cumulative)(8)(19)

               2,738  2,738 

                   16,123  16,123 

                        

          UniTek Global Services, Inc.(11)

           

          Provider of Outsourced Infrastructure Services

                      

             

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — January 13, 2019)(9)

            5,021  5,010  5,021 

             

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — January 13, 2019)(9)

            824  824  824 

             

          15% PIK Unsecured Debt (Maturity — July 13, 2019)(19)

            745  745  745 

             

          Preferred Stock (4,935,377 shares; 13.5% cumulative)(8)(19)

               5,814  6,410 

             

          Common Stock (705,054 shares)

                 3,010 

                   12,393  16,010 

                        

          Universal Wellhead Services Holdings, LLC(10)

           

          Provider of Wellhead Equipment, Designs, and Personnel to the Oil & Gas Industry

                      

             

          Preferred Member Units (UWS Investments, LLC) (716,949 units)

               717  720 

             

          Member Units (UWS Investments, LLC) (4,000,000 units)

               4,000  610 

                   4,717  1,330 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Valley Healthcare Group, LLC

           

          Provider of Durable Medical Equipment

                      

             

          LIBOR Plus 12.50% (Floor 0.50%), Current Coupon 13.12%, Secured Debt (Maturity — December 29, 2020)(9)

            12,956  12,844  12,844 

             

          Preferred Member Units (Valley Healthcare Holding, LLC) (1,600 units)

               1,600  1,600 

                   14,444  14,444 

                        

          Volusion, LLC

           

          Provider of Online Software-as-a-Service eCommerce Solutions

                      

             

          11.5% Secured Debt (Maturity — January 26, 2020)

            17,500  15,298  15,298 

             

          Preferred Member Units (4,876,670 units)

               14,000  14,000 

             

          Warrants (1,831,355 equivalent units; Expiration — January 26, 2025; Strike price — $0.01 per unit)

               2,576  2,576 

                   31,874  31,874 

          Subtotal Affiliate Investments (18.8% of total investments at fair value)

           $394,699 $375,948 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Non-Control/Non-Affiliate Investments(7)

           

           

                    

                        

          Adams Publishing Group, LLC(10)

           

          Local Newspaper Operator

                      

             

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.00%, Secured Debt (Maturity — November 3, 2020)(9)

           $7,662 $7,544 $7,662 

                        

          Ahead, LLC(10)

           

          IT Infrastructure Value Added Reseller

                      

             

          LIBOR Plus 6.50%, Current Coupon 7.50%, Secured Debt (Maturity — November 2, 2020)

            14,250  13,906  14,303 

                        

          Allflex Holdings III Inc.(11)

           

          Manufacturer of Livestock Identification Products

                      

             

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.00%, Secured Debt (Maturity — July 19, 2021)(9)

            14,795  14,706  14,809 

                        

          American Scaffold Holdings, Inc.(10)

           

          Marine Scaffolding Service Provider

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — March 31, 2022)(9)

            7,359  7,258  7,323 

                        

          American Seafoods Group, LLC(11)

           

          Catcher and Processor of Alaskan Pollock

                      

             

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — August 19, 2021)(9)

            9,634  9,624  9,634 

                        

          American Teleconferencing Services, Ltd.(11)

           

          Provider of Audio Conferencing and Video Collaboration Solutions

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — December 8, 2021)(9)

            11,163  10,345  10,933 

             

          LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity — June 6, 2022)(9)

            3,714  3,569  3,569 

                   13,914  14,502 

                        

          Anchor Hocking, LLC(11)

           

          Household Products Manufacturer

                      

             

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, Secured Debt (Maturity — June 4, 2018)(9)

            2,277  2,277  2,231 

             

          Member Units (440,620 units)

               4,928  3,305 

                   7,205  5,536 

                        

          AP Gaming I, LLC(10)

           

          Developer, Manufacturer, and Operator of Gaming Machines

                      

             

          LIBOR Plus 8.25% (Floor 1.00%), Current Coupon 9.25%, Secured Debt (Maturity — December 20, 2020)(9)

            7,209  7,099  7,194 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Apex Linen Service, Inc.

           

          Industrial Launderers

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — October 30, 2022)(9)

            2,400  2,400  2,400 

             

          13% Secured Debt (Maturity — October 30, 2022)

            14,416  14,337  14,337 

                   16,737  16,737 

                        

          Applied Products, Inc.(10)

           

          Adhesives Distributor

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — September 30, 2019)(9)

            3,527  3,499  3,518 

                        

          Arcus Hunting LLC.(10)

           

          Manufacturer of Bowhunting and Archery Products and Accessories

                      

             

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.00%, Secured Debt (Maturity — November 13, 2019)(9)

            13,947  13,796  13,947 

                        

          Artel, LLC(11)

           

          Provider of Secure Satellite Network and IT Solutions

                      

             

          LIBOR Plus 7.00% (Floor 1.25%), Current Coupon 8.25%, Secured Debt (Maturity — November 27, 2017)(9)

            7,050  6,920  6,592 

                        

          ATI Investment Sub, Inc.(11)

           

          Manufacturer of Solar Tracking Systems

                      

             

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — June 22, 2021)(9)

            9,500  9,322  9,476 

                        

          ATS Workholding, Inc.(10)

           

          Manufacturer of Machine Cutting Tools and Accessories

                      

             

          LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity — March 10, 2019)(9)

            6,173  6,146  5,924 

                        

          ATX Networks Corp.(11)(13)(21)

           

          Provider of Radio Frequency Management Equipment

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — June 11, 2021)(9)

            11,790  11,604  11,584 

                        

          Berry Aviation, Inc.(10)

           

          Airline Charter Service Operator

                      

             

          13.75% Secured Debt (Maturity — January 30, 2020)

            5,627  5,588  5,627 

             

          Common Stock (553 shares)

               400  820 

                   5,988  6,447 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Bluestem Brands, Inc.(11)

           

          Multi-Channel Retailer of General Merchandise

                      

             

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — November 6, 2020)(9)

            12,880  12,635  11,227 

                        

          Brainworks Software, LLC(10)

           

          Advertising Sales and Newspaper Circulation Software

                      

             

          Prime Plus 9.25% (Floor 3.25%), Current Coupon 13.00%, Secured Debt (Maturity — July 22, 2019)(9)

            6,733  6,684  6,733 

                        

          Brightwood Capital Fund Investments(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (Brightwood Capital Fund III, LP) (Fully diluted 1.6%)(8)

               12,000  11,094 

             

          LP Interests (Brightwood Capital Fund IV, LP) (Fully diluted 0.9%)

               500  500 

                   12,500  11,594 

                        

          Brundage-Bone Concrete Pumping, Inc.(11)

           

          Construction Services Provider

                      

             

          10.375% Secured Debt (Maturity — September 1, 2021)

            3,000  2,985  3,240 

                        

          California Pizza Kitchen, Inc.(11)

           

          Casual Restaurant Group

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — August 23, 2022)(9)

            4,988  4,940  4,976 

                        

          Cenveo Corporation(11)

           

          Provider of Commercial Printing, Envelopes, Labels, and Printed Office Products

                      

             

          6% Secured Debt (Maturity — August 1, 2019)

            13,130  11,097  11,719 

                        

          CDHA Management, LLC(10)

           

          Dental Services

                      

             

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — December 5, 2021)(9)

            4,491  4,415  4,415 

                        

          Charlotte Russe, Inc(11)

           

          Fast-Fashion Retailer to Young Women

                      

             

          LIBOR Plus 5.50% (Floor 1.25%), Current Coupon 6.75%, Secured Debt (Maturity — May 22, 2019)(9)

            14,346  14,141  8,724 

                        

          Clarius BIGS, LLC(10)

           

          Prints & Advertising Film Financing

                      

             

          15% PIK Secured Debt (Maturity — January 5, 2015)(14)(17)

            2,928  2,928  88 

                        

          Compact Power Equipment, Inc.

           

          Equipment / Tool Rental

                      

             

          12% Secured Debt (Maturity — October 1, 2017)

            4,100  4,095  4,100 

             

          Series A Preferred Stock (4,298,435 shares)

               1,079  4,180 

                   5,174  8,280 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Compuware Corporation(11)

           

          Provider of Software and Supporting Services

                      

             

          LIBOR Plus 5.25% (Floor 1.00%), Current Coupon 6.25%, Secured Debt (Maturity — December 15, 2019)(9)

            8,345  8,187  8,398 

                        

          Construction Supply Investments, LLC(10)

           

          Distribution Platform of Specialty Construction Materials to Professional Concrete and Masonry Contractors

                      

             

          LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 10.50%, Secured Debt (Maturity — June 30, 2023)(9)

            8,500  8,416  8,416 

             

          Member Units (20,000 units)

               2,000  2,000 

                   10,416  10,416 

                        

          ContextMedia Health, LLC(11)

           

          Provider of Healthcare Media Content

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — December 23, 2021)(9)

            8,000  7,201  7,320 

                        

          Covenant Surgical Partners, Inc.(11)

           

          Ambulatory Surgical Centers

                      

             

          8.75% Secured Debt (Maturity — August 1, 2019)

            800  800  772 

                        

          CRGT Inc.(11)

           

          Provider of Custom Software Development

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — December 19, 2020)(9)

            6,366  6,286  6,382 

                        

          CST Industries Inc.(11)

           

          Storage Tank Manufacturer

                      

             

          LIBOR Plus 6.25% (Floor 1.50%), Current Coupon 7.75%, Secured Debt (Maturity — May 22, 2017)(9)

            9,102  9,084  9,102 

                        

          Darr Equipment LP(10)

           

          Heavy Equipment Dealer

                      

             

          12% Current / 2% PIK Secured Debt (Maturity — April 15, 2020)(19)

            21,130  20,697  20,748 

             

          Warrants (915,734 equivalent units; Expiration — April 15, 2024; Strike price — $1.50 per unit)

               474  10 

                   21,171  20,758 

                        

          Digital River, Inc.(11)

           

          Provider of Outsourced e-Commerce Solutions and Services

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — February 12, 2021)(9)

            15,184  15,086  15,317 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Digital Room LLC(11)

           

          Pure-Play e-Commerce Print Business

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — November 21, 2022)(9)

            7,625  7,475  7,549 

                        

          Drilling Info Holdings, Inc.

           

          Information Services for the Oil and Gas Industry

                      

             

          Common Stock (3,788,865 shares)

               1,335  10,410 

                        

          ECP-PF Holdings Group, Inc.(10)

           

          Fitness Club Operator

                      

             

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, Secured Debt (Maturity — November 26, 2019)(9)

            5,625  5,589  5,625 

                        

          EnCap Energy Fund Investments(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (EnCap Energy Capital Fund VIII, L.P.) (Fully diluted 0.1%)(8)

               3,877  1,955 

             

          LP Interests (EnCap Energy Capital Fund VIII Co-Investors, L.P.) (Fully diluted 0.4%)

               2,200  1,225 

             

          LP Interests (EnCap Energy Capital Fund IX, L.P.) (Fully diluted 0.1%)(8)

               3,957  3,680 

             

          LP Interests (Encap Energy Capital Fund X, L.P.)(Fully diluted 0.1%)

               3,039  3,039 

             

          LP Interests (EnCap Flatrock Midstream Fund II, L.P.)(Fully diluted 0.8%)(8)

               9,116  10,452 

             

          LP Interests (EnCap Flatrock Midstream Fund III, L.P.)(Fully diluted 0.2%)(8)

               2,513  2,461 

                   24,702  22,812 

                        

          Evergreen Skills Lux S.á r.l. (d/b/a Skillsoft)(11)(13)

           

          Technology-based Performance Support Solutions

                      

             

          LIBOR Plus 8.25% (Floor 1.00%), Current Coupon 9.25%, Secured Debt (Maturity — April 28, 2022)(9)

            7,000  6,857  5,274 

                        

          Flavors Holdings Inc.(11)

           

          Global Provider of Flavoring and Sweetening Products and Solutions

                      

             

          LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 6.75%, Secured Debt (Maturity — April 3, 2020)(9)

            12,483  12,082  10,174 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          GI KBS Merger Sub LLC(11)

           

          Outsourced Janitorial Services to Retail/Grocery Customers

                      

             

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — October 29, 2021)(9)

            3,900  3,851  3,842 

             

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — April 29, 2022)(9)

            800  787  760 

                   4,638  4,602 

                        

          Grace Hill, LLC(10)

           

          Online Training Tools for the Multi-Family Housing Industry

                      

             

          Prime Plus 5.25% (Floor 1.00%), Current Coupon 9.00%, Secured Debt (Maturity — August 15, 2019)(9)

            634  623  634 

             

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — August 15, 2019)(9)

            11,552  11,472  11,552 

                   12,095  12,186 

                        

          Great Circle Family Foods, LLC(10)

           

          Quick Service Restaurant Franchise

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — October 28, 2019)(9)

            7,648  7,598  7,648 

                        

          Grupo Hima San Pablo, Inc.(11)

           

          Tertiary Care Hospitals

                      

             

          LIBOR Plus 7.00% (Floor 1.50%), Current Coupon 8.50%, Secured Debt (Maturity — January 31, 2018)(9)

            4,813  4,787  3,734 

             

          13.75% Secured Debt (Maturity — July 31, 2018)

            2,000  1,962  1,205 

                   6,749  4,939 

                        

          GST Autoleather, Inc.(11)

           

          Automotive Leather Manufacturer

                      

             

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.50%, Secured Debt (Maturity — July 10, 2020)(9)

            13,317  13,215  13,017 

                        

          Guitar Center, Inc.(11)

           

          Musical Instruments Retailer

                      

             

          6.5% Secured Debt (Maturity — April 15, 2019)

            14,625  13,890  13,272 

                        

          Hojeij Branded Foods, LLC(10)

           

          Multi-Airport, Multi-Concept Restaurant Operator

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — July 27, 2021)(9)

            5,432  5,390  5,432 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Hoover Group, Inc.(10)(13)

           

          Provider of Storage Tanks and Related Products to the Energy and Petrochemical Markets

                      

             

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — January 28, 2021)(9)

            8,546  7,963  7,963 

                        

          Horizon Global Corporation(11)(13)

           

          Auto Parts Manufacturer

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — June 30, 2021)(9)

            9,375  9,249  9,551 

                        

          Hostway Corporation(11)

           

          Managed Services and Hosting Provider

                      

             

          LIBOR Plus 6.75% (Floor 1.25%), Current Coupon 8.00%, Secured Debt (Maturity — December 13, 2019)(9)

            10,577  10,515  10,028 

                        

          Hunter Defense Technologies, Inc.(11)

           

          Provider of Military and Commercial Shelters and Systems

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — August 5, 2019)(9)

            9,606  9,120  8,933 

                        

          Hygea Holdings, Corp.(10)

           

          Provider of Physician Services

                      

             

          LIBOR Plus 9.25%, Current Coupon 10.17%, Secured Debt (Maturity — February 24, 2019)

            7,875  7,381  7,615 

             

          Warrants (5,990,452 equivalent shares; Expiration — February 24, 2023; Strike price — $0.01 per share)

               369  1,530 

                   7,750  9,145 

                        

          iEnergizer Limited(11)(13)(21)

           

          Provider of Business Outsourcing Solutions

                      

             

          LIBOR Plus 6.00% (Floor 1.25%), Current Coupon 7.25%, Secured Debt (Maturity — May 1, 2019)(9)

            9,918  9,467  9,621 

                        

          Indivior Finance LLC(11)(13)

           

          Specialty Pharmaceutical Company Treating Opioid Dependence

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — December 19, 2019)(9)

            6,750  6,455  6,809 

                        

          Industrial Container Services, LLC(10)

           

          Steel Drum Reconditioner

                      

             

          LIBOR Plus 5.75% (Floor 1.00%), Current Coupon 6.75%, Secured Debt (Maturity — December 31, 2018)(9)

            8,949  8,932  8,949 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Industrial Services Acquisition, LLC(10)

           

          Industrial Cleaning Services

                      

             

          11.25% Current / 0.75% PIK Unsecured Debt (Maturity — December 17, 2022)(19)

            4,519  4,433  4,433 

             

          Member Units (Industrial Services Investments, LLC) (900,000 units)

               900  900 

                   5,333  5,333 

                        

          Infinity Acquisition Finance Corp.(11)

           

          Application Software for Capital Markets

                      

             

          7.25% Unsecured Debt (Maturity — August 1, 2022)

            5,700  5,366  4,802 

                        

          Inn of the Mountain Gods Resort and Casino(11)

           

          Hotel & Casino Owner & Operator

                      

             

          9.25% Secured Debt (Maturity — November 30, 2020)

            6,249  5,924  5,687 

                        

          Intertain Group Limited(11)(13)(21)

           

          Business-to-Consumer Online Gaming Operator

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — April 8, 2022)(9)

            4,426  4,364  4,465 

                        

          iPayment, Inc.(11)

           

          Provider of Merchant Acquisition

                      

             

          LIBOR Plus 5.25% (Floor 1.50%), Current Coupon 6.75%, Secured Debt (Maturity — May 8, 2017)(9)

            14,918  14,907  14,395 

                        

          iQor US Inc.(11)

           

          Business Process Outsourcing Services Provider

                      

             

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — April 1, 2021)(9)

            9,812  9,671  9,413 

                        

          irth Solutions, LLC

           

          Provider of Damage Prevention Information Technology Services

                      

             

          Member Units (27,893 units)

               1,441  1,790 

                        

          Jackmont Hospitality, Inc.(10)

           

          Franchisee of Casual Dining Restaurants

                      

             

          LIBOR Plus 4.25% (Floor 1.00%), Current Coupon 5.25% / 2.50% PIK, Current Coupon Plus PIK 7.75%, Secured Debt (Maturity — May 26, 2021)(9)(19)

            4,445  4,429  4,445 

                        

          Joerns Healthcare, LLC(11)

           

          Manufacturer and Distributor of Health Care Equipment & Supplies

                      

             

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — May 9, 2020)(9)

            14,655  14,560  13,776 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          JSS Holdings, Inc.(11)

           

          Aircraft Maintenance Program Provider

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — August 31, 2021)(9)

            12,829  12,562  12,765 

                        

          Kendra Scott, LLC(11)

           

          Jewelry Retail Stores

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — July 17, 2020)(9)

            5,578  5,536  5,550 

                        

          Keypoint Government Solutions, Inc.(11)

           

          Provider of Pre-Employment Screening Services

                      

             

          LIBOR Plus 6.50% (Floor 1.25%), Current Coupon 7.75%, Secured Debt (Maturity — November 13, 2017)(9)

            5,459  5,443  5,431 

                        

          LaMi Products, LLC(10)

           

          General Merchandise Distribution

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — September 16, 2020)(9)

            10,735  10,658  10,735 

                        

          Larchmont Resources, LLC(11)

           

          Oil & Gas Exploration & Production

                      

             

          LIBOR Plus 9.00% (Floor 1.00%), Current Coupon 10.00%, PIK Secured Debt (Maturity — August 7, 2020)(9)(19)

            2,260  2,260  2,209 

             

          Member Units (Larchmont Intermediate Holdco, LLC) (2,828 units)

               353  1,193 

                   2,613  3,402 

                        

          LKCM Headwater Investments I, L.P.(12)(13)

           

          Investment Partnership

                      

             

          LP Interests (Fully diluted 2.3%)

               2,500  3,627 

                        

          Logix Acquisition Company, LLC(10)

           

          Competitive Local Exchange Carrier

                      

             

          LIBOR Plus 8.28% (Floor 1.00%), Current Coupon 9.28%, Secured Debt (Maturity — June 24, 2021)(9)(22)

            8,593  8,457  8,593 

                        

          Looking Glass Investments, LLC(12)(13)

           

          Specialty Consumer Finance

                      

             

          9% Unsecured Debt (Maturity — June 30, 2020)

            188  188  188 

             

          Member Units (2.5 units)

               125  125 

             

          Member Units (LGI Predictive Analytics LLC) (190,712 units)(8)

               160  160 

                   473  473 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Messenger, LLC(10)

           

          Supplier of Specialty Stationery and Related Products to the Funeral Industry

                      

             

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — September 9, 2020)(9)

            14,403  14,326  14,403 

                        

          Minute Key, Inc.

           

          Operator of Automated Key Duplication Kiosks

                      

             

          10% Current / 2% PIK Secured Debt (Maturity — September 19, 2019)(19)

            15,700  15,404  15,404 

             

          Warrants (1,437,409 equivalent shares; Expiration — May 20, 2025; Strike price — $0.01 per share)

               280  470 

                   15,684  15,874 

                        

          Mood Media Corporation(11)(13)

           

          Provider of Electronic Equipment

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — May 1, 2019)(9)

            14,805  14,645  14,312 

                        

          New Media Holdings II LLC(11)(13)

           

          Local Newspaper Operator

                      

             

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — June 4, 2020)(9)

            14,888  14,632  14,813 

                        

          North American Lifting Holdings, Inc.(11)

           

          Crane Service Provider

                      

             

          LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 5.50%, Secured Debt (Maturity — November 27, 2020)(9)

            3,865  3,235  3,375 

                        

          North Atlantic Trading Company, Inc.(11)

           

          Marketer/Distributor of Tobacco Products

                      

             

          LIBOR Plus 6.50% (Floor 1.25%), Current Coupon 7.75%, Secured Debt (Maturity — January 13, 2020)(9)

            9,396  9,343  9,337 

                        

          Novitex Intermediate, LLC(11)

           

          Provider of Document Management Services

                      

             

          LIBOR Plus 6.75% (Floor 1.25%), Current Coupon 8.00%, Secured Debt (Maturity — July 7, 2020)(9)

            9,335  9,175  8,985 

                        

          NTM Acquisition Corp.(11)

           

          Provider of B2B Travel Information Content

                      

             

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — June 7, 2022)(9)

            4,144  4,085  4,128 

                        

          Ospemifene Royalty Sub LLC (QuatRx)(10)

           

          Estrogen-Deficiency Drug Manufacturer and Distributor

                      

             

          11.5% Secured Debt (Maturity — November 15, 2026)(14)

            5,071  5,071  2,088 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Pardus Oil and Gas, LLC(11)

           

          Oil & Gas Exploration & Production

                      

             

          13% PIK Secured Debt (Maturity — November 12, 2021)(19)

            1,869  1,869  1,869 

             

          5% PIK Secured Debt (Maturity — May 13, 2022)(19)

            992  992  562 

             

          Member Units (2,472 units)

               2,472  970 

                   5,333  3,401 

                        

          Paris Presents Incorporated(11)

           

          Branded Cosmetic and Bath Accessories

                      

             

          LIBOR Plus 8.75% (Floor 1.00%), Current Coupon 9.75%, Secured Debt (Maturity — December 31, 2021)(9)

            2,000  1,969  1,960 

                        

          Parq Holdings Limited Partnership(11)(13)(21)

           

          Hotel & Casino Operator

                      

             

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — December 17, 2020)(9)

            7,500  7,394  7,388 

                        

          Permian Holdco 2, Inc.(11)

           

          Storage Tank Manufacturer

                      

             

          14% PIK Unsecured Debt (Maturity — October 15, 2021)(19)

            198  198  198 

             

          Preferred Stock (Permian Holdco 1, Inc.) (154,558 units)

               799  799 

             

          Common Stock (Permian Holdco 1, Inc.) (154,558 units)

                  

                   997  997 

                        

          Pernix Therapeutics Holdings, Inc.(10)

           

          Pharmaceutical Royalty

                      

             

          12% Secured Debt (Maturity — August 1, 2020)

            3,447  3,447  3,326 

                        

          Pet Holdings ULC(11)(13)(21)

           

          Retailer of Pet Products and Supplies to Consumers

                      

             

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.50%, Secured Debt (Maturity — July 5, 2022)(9)

            2,494  2,470  2,503 

                        

          Pike Corporation(11)

           

          Construction and Maintenance Services for Electric Transmission and Distribution Infrastructure

                      

             

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — June 22, 2022)(9)

            14,000  13,720  14,082 

                        

          Point.360(10)

           

          Fully Integrated Provider of Digital Media Services

                      

             

          Warrants (65,463 equivalent shares; Expiration — July 7, 2020; Strike price — $0.75 per share)

               69   

             

          Common Stock (163,658 shares)

               273  63 

                   342  63 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Polycom, Inc.(11)

           

          Provider of Audio and Video Communication Solutions

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — September 27, 2023)(9)

            12,089  11,617  12,194 

                        

          PPC/SHIFT LLC(10)

           

          Provider of Digital Solutions to Automotive Industry

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — June 6, 2022)(9)

            7,000  6,852  6,852 

                        

          Prowler Acquisition Corp.(11)

           

          Specialty Distributor to the Energy Sector

                      

             

          LIBOR Plus 4.50% (Floor 1.00%), Current Coupon 5.50%, Secured Debt (Maturity — January 28, 2020)(9)

            9,519  7,904  7,044 

                        

          PT Network, LLC(10)

           

          Provider of Outpatient Physical Therapy and Sports Medicine Services

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — November 30, 2021)(9)

            16,225  15,979  15,979 

                        

          QBS Parent, Inc.(11)

           

          Provider of Software and Services to the Oil & Gas Industry

                      

             

          LIBOR Plus 4.75% (Floor 1.00%), Current Coupon 5.75%, Secured Debt (Maturity — August 7, 2021)(9)

            11,274  11,201  11,161 

                        

          Raley's(11)

           

          Family-Owned Supermarket Chain

                      

             

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — May 18, 2022)(9)

            4,195  4,125  4,242 

                        

          Redbox Automated Retail, LLC(11)

           

          Operator of Home Media Entertainment Kiosks

                      

             

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — September 27, 2021)(9)

            15,000  14,581  14,629 

                        

          Renaissance Learning, Inc.(11)

           

          Technology-based K-12 Learning Solutions

                      

             

          LIBOR Plus 7.00% (Floor 1.00%), Current Coupon 8.00%, Secured Debt (Maturity — April 11, 2022)(9)

            3,000  2,978  2,987 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          RGL Reservoir Operations Inc.(11)(13)(21)

           

          Oil & Gas Equipment and Services

                      

             

          LIBOR Plus 5.00% (Floor 1.00%), Current Coupon 6.00%, Secured Debt (Maturity — August 13, 2021)(9)

            3,910  3,826  880 

                        

          RM Bidder, LLC(10)

           

          Scripted and Unscripted TV and Digital Programming Provider

                      

             

          Warrants (327,532 equivalent units; Expiration — October 20, 2025; Strike price — $14.28 per unit)

               425  300 

             

          Member Units (2,779 units)

               46  44 

                   471  344 

                        

          SAExploration, Inc.(10)(13)(21)

           

          Geophysical Services Provider

                      

             

          Common Stock (50 shares)

               65  3 

                        

          SAFETY Investment Holdings, LLC

           

          Provider of Intelligent Driver Record Monitoring Software and Services

                      

             

          Member Units (2,000,000 units)

               2,000  2,000 

                        

          Salient Partners L.P.(11)

           

          Provider of Asset Management Services

                      

             

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — June 9, 2021)(9)

            10,812  10,538  10,352 

                        

          School Specialty, Inc.(11)

           

          Distributor of Education Supplies and Furniture

                      

             

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — June 11, 2019)(9)

            5,712  5,632  5,784 

                        

          Sigma Electric Manufacturing Corporation(10)(13)

           

          Manufacturer and Distributor of Electrical Fittings and Parts

                      

             

          LIBOR Plus 7.25% (Floor 1.00%), Current Coupon 8.25%, Secured Debt (Maturity — October 13, 2021)(9)

            12,500  12,200  12,200 

                        

          Sorenson Communications, Inc.(11)

           

          Manufacturer of Communication Products for Hearing Impaired

                      

             

          LIBOR Plus 5.75% (Floor 2.25%), Current Coupon 8.00%, Secured Debt (Maturity — April 30, 2020)(9)

            13,371  13,283  13,271 

                        

          Strike, LLC(11)

           

          Pipeline Construction and Maintenance Services

                      

             

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.00%, Secured Debt (Maturity — November 30, 2022)(9)

            10,000  9,666  9,864 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Subsea Global Solutions, LLC(10)

           

          Underwater Maintenance and Repair Services

                      

             

          LIBOR Plus 6.00% (Floor 1.50%), Current Coupon 7.50%, Secured Debt (Maturity — March 17, 2020)(9)

            5,629  5,588  5,624 

                        

          Synagro Infrastructure Company, Inc(11)

           

          Waste Management Services

                      

             

          LIBOR Plus 5.25% (Floor 1.00%), Current Coupon 6.25%, Secured Debt (Maturity — August 22, 2020)(9)

            4,714  4,659  4,136 

                        

          Targus International, LLC(11)

           

          Distributor of Protective Cases for Mobile Devices

                      

             

          15% PIK Secured Debt (Maturity — December 31, 2019)(19)

            1,140  1,140  1,140 

             

          Common Stock (Targus Cayman HoldCo Limited) (249,614 shares)(13)

               2,555  2,260 

                   3,695  3,400 

                        

          TE Holdings, LLC(11)

           

          Oil & Gas Exploration & Production

                      

             

          Member Units (97,048 units)

               970  728 

                        

          TeleGuam Holdings, LLC(11)

           

          Cable and Telecom Services Provider

                      

             

          LIBOR Plus 4.00% (Floor 1.25%), Current Coupon 5.25%, Secured Debt (Maturity — December 10, 2018)(9)

            7,622  7,613  7,546 

             

          LIBOR Plus 7.50% (Floor 1.25%), Current Coupon 8.75%, Secured Debt (Maturity — June 10, 2019)(9)

            10,500  10,442  10,290 

                   18,055  17,836 

                        

          The Topps Company, Inc.(11)

           

          Trading Cards & Confectionary

                      

             

          LIBOR Plus 6.00% (Floor 1.25%), Current Coupon 7.25%, Secured Debt (Maturity — October 2, 2020)(9)

            2,218  2,208  2,226 

                        

          TMC Merger Sub Corp.(11)

           

          Refractory & Maintenance Services Provider

                      

             

          LIBOR Plus 6.25% (Floor 1.00%), Current Coupon 7.25%, Secured Debt (Maturity — October 31, 2022)(9)(23)

            12,500  12,376  12,438 

                        

          TOMS Shoes, LLC(11)

           

          Global Designer, Distributor, and Retailer of Casual Footwear

                      

             

          LIBOR Plus 5.50% (Floor 1.00%), Current Coupon 6.50%, Secured Debt (Maturity — October 30, 2020)(9)

            4,913  4,567  3,635 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Travel Leaders Group, LLC(11)

           

          Travel Agency Network Provider

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — December 7, 2020)(9)

            10,994  10,936  10,975 

                        

          Truck Bodies and Equipment International, Inc.(10)

           

          Manufacturer of Dump Truck Bodies and Dump Trailers

                      

             

          LIBOR Plus 7.50% (Floor 1.00%), Current Coupon 8.50%, Secured Debt (Maturity — March 31, 2021)(9)

            15,750  15,602  15,602 

                        

          TVG-I-E CMN ACQUISITION, LLC(10)

           

          Organic Lead Generation for Online Postsecondary Schools

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — November 3, 2021)(9)

            6,459  6,334  6,334 

                        

          Tweddle Group, Inc.(11)

           

          Provider of Technical Information Services to Automotive OEMs

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — October 21, 2022)(9)

            8,462  8,295  8,419 

                        

          UniRush, LLC

           

          Provider of Prepaid Debit Card Solutions

                      

             

          12% Secured Debt (Maturity — February 1, 2019)

            12,000  10,981  12,000 

             

          Warrants (444,725 equivalent units; Expiration — February 2, 2026; Strike price — $10.27 per unit)

               1,250  1,250 

                   12,231  13,250 

                        

          US Joiner Holding Company(11)

           

          Marine Interior Design and Installation

                      

             

          LIBOR Plus 6.00% (Floor 1.00%), Current Coupon 7.00%, Secured Debt (Maturity — April 16, 2020)(9)

            11,514  11,435  11,456 

                        

          U.S. TelePacific Corp.(10)

           

          Provider of Communications and Managed Services

                      

             

          LIBOR Plus 8.50% (Floor 1.00%), Current Coupon 9.50%, Secured Debt (Maturity — February 24, 2021)(9)

            7,500  7,377  7,377 

                        

          VCVH Holding Corp. (Verisk)(11)

           

          Healthcare Technology Services Focused on Revenue Maximization

                      

             

          LIBOR Plus 9.25% (Floor 1.00%), Current Coupon 10.25%, Secured Debt (Maturity — June 1, 2024)(9)

            1,500  1,464  1,488 

                        

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments — (Continued)

          December 31, 2016
          (dollars in thousands)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(18)
           
            

          Virtex Enterprises, LP(10)

           

          Specialty, Full-Service Provider of Complex Electronic Manufacturing Services

                      

             

          12% Secured Debt (Maturity — December 27, 2018)

            1,667  1,559  1,559 

             

          Preferred Class A Units (14 units; 5% cumulative)(8)

               333  612 

             

          Warrants (11 equivalent units; Expiration — December 27, 2023; Strike price — $0.001 per unit)

               186  220 

                   2,078  2,391 

                        

          Wellnext, LLC(10)

           

          Manufacturer of Supplements and Vitamins

                      

             

          LIBOR Plus 9.00% (Floor 0.50%), Current Coupon 9.85%, Secured Debt (Maturity — May 23, 2021)(9)

            10,058  9,968  10,058 

                        

          Western Dental Services, Inc.(11)

           

          Dental Care Services

                      

             

          LIBOR Plus 6.50% (Floor 1.00%), Current Coupon 7.50%, Secured Debt (Maturity — November 1, 2018)(9)

            4,904  4,902  4,885 

                        

          Wilton Brands LLC(11)

           

          Specialty Housewares Retailer

                      

             

          LIBOR Plus 7.25% (Floor 1.25%), Current Coupon 8.50%, Secured Debt (Maturity — August 30, 2018)(9)

            1,153  1,147  1,093 

                        

          Worley Claims Services, LLC(10)

           

          Insurance Adjustment Management and Services Provider

                      

             

          LIBOR Plus 8.00% (Floor 1.00%), Current Coupon 9.00%, Secured Debt (Maturity — October 31, 2020)(9)

            6,386  6,342  6,386 

                        

          YP Holdings LLC(11)

           

          Online and Offline Advertising Operator

                      

             

          LIBOR Plus 11.00% (Floor 1.25%), Current Coupon 12.25%, Secured Debt (Maturity — June 4, 2018)(9)

            11,428  10,969  11,398 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments
          December 31, 2016
          (dollars in thousands) — (Continued)

          Portfolio Company(1)(20)
           Business Description
           Type of Investment(2)(3)
           Principal(4)
           Cost(4)
           Fair Value(8)
           
            

          Zilliant Incorporated

           

          Price Optimization and
          Margin Management
          Solutions

                      

             

          Preferred Stock (186,777 shares)

               154  260 

             

          Warrants (952,500 equivalent shares;
          Expiration — June 15, 2022; Strike
          price — $0.001 per share)

               1,071  1,190 

                   1,225  1,450 

          Subtotal Non-Control/Non-Affiliate Investments (51.4% of total investments at fair value)

           $1,037,510 $1,026,676 

          Total Portfolio Investments, December 31, 2016

           $1,871,883 $1,996,906 

          (1)
          All investments are Lower Middle Market portfolio investments, unless otherwise noted. See Note B for a description of Lower Middle Market portfolio investments. All of the Company's investments, unless otherwise noted, are encumbered either as security for the Company's Credit Agreement or in support of the SBA-guaranteed debentures issued by the Funds.

          (2)
          Debt investments are income producing, unless otherwise noted. Equity and warrants are non-income producing, unless otherwise noted.

          (3)
          See Note C for a summary of geographic location of portfolio companies.

          (4)
          Principal is net of repayments. Cost is net of repayments and accumulated unearned income.

          (5)
          Control investments are defined by the Investment Company Act of 1940, as amended ("1940 Act") as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.

          (6)
          Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as Control investments.

          (7)
          Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.

          (8)
          Income producing through dividends or distributions.

          (9)
          Index based floating interest rate is subject to contractual minimum interest rate. A majority of the variable rate loans in the Company's investment portfolio bear interest at a rate that may be determined by reference to either LIBOR or an alternate Base Rate (commonly based on the Federal Funds Rate or the Prime Rate), which typically resets semi-annually, quarterly, or monthly at the borrower's option. The borrower may also elect to have multiple interest reset periods for each loan. For each such loan, the Company has provided the weighted average annual stated interest rate in effect at December 31, 2016. As noted in this schedule, 64% (based on the par amount of the loans) of the loans contain LIBOR floors which range between 0.50% and 2.25%, with a weighted-average LIBOR floor of approximately 1.04%.

          (10)
          Private Loan portfolio investment. See Note B for a description of Private Loan portfolio investments.

          (11)
          Middle Market portfolio investment. See Note B for a description of Middle Market portfolio investments.

          (12)
          Other Portfolio investment. See Note B for a description of Other Portfolio investments.

          (13)
          Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.

          (14)
          Non-accrual and non-income producing investment.

          (15)
          Portfolio company is in a bankruptcy process and, as such, the maturity date of our debt investments in this portfolio company will not be finally determined until such process is complete. As noted in footnote (14), our debt investments in this portfolio company are on non-accrual status.

          (16)
          External Investment Manager. Investment is not encumbered as security for the Company's Credit Agreement or in support of the SBA-guaranteed debentures issued by the Funds.

          (17)
          Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.

          (18)
          Investment value was determined using significant unobservable inputs, unless otherwise noted.

          (19)
          PIK interest income and cumulative dividend income represent income not paid currently in cash.

          (20)
          All portfolio company headquarters are based in the United States, unless otherwise noted.

          (21)
          Portfolio company headquarters are located outside of the United States.

          (22)
          The Company has entered into an intercreditor agreement that entitles the Company to the "last out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any

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          MAIN STREET CAPITAL CORPORATION

          Consolidated Schedule of Investments
          December 31, 2016
          (dollars in thousands) — (Continued)

            other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of LIBOR plus 7.50% (Floor 1.00%) per the Credit Agreement and the Consolidated Schedule of Investments above reflects such higher rate.

          (23)
          The Company has entered into an intercreditor agreement that entitles the Company to the "first out" tranche of the first lien secured loans, whereby the "first out" tranche will receive priority as to the "last out" tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a lower interest rate than the contractual stated interest rate of LIBOR plus 6.64% (Floor 1.00%) per the Credit Agreement and the Consolidated Schedule of Investments above reflects such lower rate.

          (24)
          Investment fair value was determined using observable inputs in non-active markets for which sufficient observable inputs were available. See note C for further discussion.

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

          NOTE A — A—ORGANIZATION AND BASIS OF PRESENTATION

          1.           Organization

          Main Street Capital Corporation ("MSCC"(“MSCC”) is a principal investment firm primarily focused on providing customized debt and equity financing to lower middle market ("LMM"(“LMM”) companies and debt capital to middle market ("(“Middle Market"Market”) companies. The portfolio investments of MSCC and its consolidated subsidiaries are typically made to support management buyouts, recapitalizations, growth financings, refinancings and acquisitions of companies that operate in a variety of industry sectors. MSCC seeks to partner with entrepreneurs, business owners and management teams and generally provides "one stop"“one stop” financing alternatives within its LMM portfolio.investment strategy. MSCC and its consolidated subsidiaries invest primarily in secured debt investments, equity investments, warrants and other securities of LMM companies based in the United States and in secured debt investments of Middle Market companies generally headquartered in the United States.

          MSCC was formebdformed in March 2007 to operate as an internally managed business development company ("BDC"(“BDC”) under the Investment Company Act of 1940, as amended (the "1940 Act"“1940 Act”). MSCC wholly owns several investment funds, including Main Street Mezzanine Fund, LP ("MSMF"), Main Street Capital II, LP ("MSC II"(“MSMF”) and Main Street Capital III, LP ("(“MSC III"III” and, collectivelytogether with MSMF, and MSC II, the "Funds"“Funds”), and each of their general partners. The Funds are each licensed as a Small Business Investment Company ("SBIC"(“SBIC”) by the United States Small Business Administration ("SBA"(“SBA”). Because MSCC is internally managed, all of the executive officers and other employees are employed by MSCC. Therefore, MSCC does not pay any external investment advisory fees, but instead directly incurs the operating costs associated with employing investment and portfolio management professionals.

          MSC Adviser I, LLC (the "External“External Investment Manager"Manager”) was formed in November 2013 as a wholly owned subsidiary of MSCC to provide investment management and other services to parties other than MSCC and its subsidiaries or their portfolio companies ("(“External Parties"Parties”) and receivereceives fee income for such services. MSCC has been granted no-action relief by the Securities and Exchange Commission ("SEC"(“SEC”) to allow the External Investment Manager to register as a registered investment adviser under the Investment Advisers Act of 1940, as amended. Since the External Investment Manager conducts all of its investment management activities for External Parties, it is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC'sMSCC’s consolidated financial statements.

          MSCC has elected to be treated for U.S. federal income tax purposes as a regulated investment company ("RIC"(“RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"“Code”). As a result, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that it distributes to its stockholders.

          MSCC has certain direct and indirect wholly owned subsidiaries that have elected to be taxable entities (the "Taxable Subsidiaries"“Taxable Subsidiaries”). The primary purpose of the Taxable Subsidiaries is to permit MSCC to hold equity investments in portfolio companies which are "pass-through"“pass-through” entities for tax purposes.

          Unless otherwise noted or the context otherwise indicates, the terms "we," "us," "our,"“we,” “us,” “our,” the "Company"“Company” and "Main Street"“Main Street” refer to MSCC and its consolidated subsidiaries, which include the Funds and the Taxable Subsidiaries.

          2.           Basis of Presentation

          Main Street'sStreet’s consolidated financial statements are prepared in accordance with generally accepted accounting principles in the United States of America ("(“U.S. GAAP"GAAP”). The Company is an investment company following accounting and reporting guidance in Financial Accounting Standards Board ("FASB"(“FASB”)


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Accounting Standards Codification ("ASC"(“ASC”) 946,Financial Services — Services—Investment Companies (" (“ASC 946"946”). For each of the periods presented

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          herein, Main Street'sStreet’s consolidated financial statements include the accounts of MSCC and its consolidated subsidiaries. The Investment Portfolio, as used herein, refers to all of Main Street'sStreet’s investments in LMM portfolio companies, investments in Private Loan (as defined in Note C) portfolio companies, investments in Middle Market portfolio companies, Private Loan portfolio investments, Other Portfolio (as defined in Note C) investments and the investment in the External Investment Manager (see Note C — “Note C—Fair Value Hierarchy for Investments and Debentures — Debentures—Portfolio Composition — Composition—Investment Portfolio CompositionComposition” for additional discussion of Main Street'sStreet’s Investment Portfolio and definitions for the defined terms Private Loan and Other Portfolio). Main Street'sStreet’s results of operations and cash flows for the years ended December 31, 2017, 20162021, 2020 and 20152019 and financial position as of December 31, 20172021 and 2016,2020, are presented on a consolidated basis. The effects of all intercompany transactions between Main Street and its consolidated subsidiaries have been eliminated in consolidation.

                 Under regulations pursuant to Article 6Principles of Regulation S-X applicable to BDCs andConsolidation

          Under ASC 946, Main Street is precluded from consolidating other entities in which Main Street has equity investments, including those in which it has a controlling interest, unless the other entity is another investment company. An exception to this general principle in ASC 946 occurs if Main Street holds a controlling interest in an operating company that provides all or substantially all of its services directly to Main Street or to its portfolio companies. Accordingly, as noted above, MSCC'sMSCC’s consolidated financial statements include the financial position and operating results for the Funds and the Taxable Subsidiaries. Main Street has determined that allnone of its portfolio investments do not qualify for this exception, including the investment in the External Investment Manager. Therefore, Main Street'sStreet’s Investment Portfolio is carried on the consolidated balance sheet at fair value, as discussed further in Note B,B.1., with any adjustments to fair value recognized as "Net Change in“Net Unrealized Appreciation (Depreciation)" on the consolidated statements of operations until the investment is realized, usually upon exit, resulting in any gain or loss being recognized as a "Net“Net Realized Gain (Loss)."

          Main Street classifies its Investment Portfolio in accordance with the requirements of the 1940 Act. Under the 1940 Act, (a) "Control Investments"“Control Investments” are defined as investments in which Main Street owns more than 25% of the voting securities or has rights to maintain greater than 50% of the board representation, (b) "Affiliate Investments"“Affiliate Investments” are defined as investments in which Main Street owns between 5% and 25% (inclusive) of the voting securities and does not have rights to maintain greater than 50% of the board representation, and (c) "Non-Control/“Non-Control/Non-Affiliate Investments"Investments” are defined as investments that are neither Control Investments nor Affiliate Investments. For purposes of determining the classification of its Investment Portfolio, Main Street has excluded consideration of any voting securities or board appointment rights held by third-party investment funds advised by the External Investment Manager.

          NOTE B — B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

          1.           Valuation of the Investment Portfolio

          Main Street accounts for its Investment Portfolio at fair value. As a result, Main Street follows the provisions of ASC 820,Fair Value Measurements and Disclosures (" (“ASC 820"820”). ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value and enhances disclosure requirements for fair value measurements. ASC 820 requires Main Street to assume that the portfolio investment is to be sold in the principal market to independent market participants, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal market that are independent, knowledgeable and willing and able to transact.

          Main Street'sStreet’s portfolio strategy calls for it to invest primarily in illiquid debt and equity securities issued by privately held, LMM companies and more liquid debt securities issued by Middle Market companies that are generally larger in size than the LMM companies. Main Street categorizes some of its investments in


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          LMM companies and Middle Market companies as Private Loan portfolio investments, which are primarily debt securities in privately held companies whichthat have been originated by Main Street or through strategic relationships with other investment funds on a collaborative basis, and are often referred to in the debt markets as "club“club deals." Private Loan investments are typically

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          similar in size, structure, terms and conditions to investments Main Street holds in its LMM portfolio and Middle Market portfolio. Main Street'sStreet’s portfolio also includes Other Portfolio investments which primarily consist of investments that are not consistent with the typical profiles for its LMM portfolio investments, Middle MarketPrivate Loan portfolio investments or Private LoanMiddle Market portfolio investments, including investments which may be managed by third parties. Main Street'sStreet’s portfolio may also include short-term portfolio investments that are atypical of Main Street’s LMM, Private Loan and Middle Market portfolio investments in that they are intended to be a short-term deployment of capital and are more liquid than investments within the other portfolios. Main Street’s portfolio investments may be subject to restrictions on resale.

          LMM investments and Other Portfolio investments generally have no established trading market while Middle Market securitiesand short-term portfolio investments generally have established markets that are not active. Private Loan investments may include investments which have no established trading market or have established markets that are not active. Main Street determines in good faith the fair value of its Investment Portfolio pursuant to a valuation policy in accordance with ASC 820, and awith such valuation process approved by its Board of Directors and in accordance with the 1940 Act. Main Street'sStreet’s valuation policies and processes are intended to provide a consistent basis for determining the fair value of Main Street'sStreet’s Investment Portfolio.

          For LMM portfolio investments, Main Street generally reviews external events, including private mergers, sales and acquisitions involving comparable companies, and includes these events in the valuation process by using an enterprise value waterfall methodology ("Waterfall"(“Waterfall”) for its LMM equity investments and an income approach using a yield-to-maturity model ("Yield-to-Maturity"(“Yield-to-Maturity”) for its LMM debt investments. For Middle Market and short-term portfolio investments, Main Street primarily uses quoted prices in the valuation process. Main Street determines the appropriateness of the use of third-party broker quotes, if any, in determining fair value based on its understanding of the level of actual transactions used by the broker to develop the quote and whether the quote was an indicative price or binding offer, the depth and consistency of broker quotes and the correlation of changes in broker quotes with underlying performance of the portfolio company and other market indices. For Private Loan and Middle Market and Private Loan portfolio investments in debt securities for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value the investment in a current hypothetical sale using the Yield-to-Maturity valuation method. For its Other Portfolio equity investments, Main Street generally calculates the fair value of the investment primarily based on the net asset value ("NAV"(“NAV”) of the fund and adjusts the fair value for other factors deemed relevant that would affect the fair value of the investment. All of the valuation approaches for Main Street'sStreet’s portfolio investments estimate the value of the investment as if Main Street were to sell, or exit, the investment as of the measurement date.

          These valuation approaches consider the value associated with Main Street'sStreet’s ability to control the capital structure of the portfolio company, as well as the timing of a potential exit. For valuation purposes, "control"“control” portfolio investments are composed of debt and equity securities in companies for which Main Street has a controlling interest in the equity ownership of the portfolio company or the ability to nominate a majority of the portfolio company'scompany’s board of directors. For valuation purposes, "non-control"“non-control” portfolio investments are generally composed of debt and equity securities in companies for which Main Street does not have a controlling interest in the equity ownership of the portfolio company or the ability to nominate a majority of the portfolio company'scompany’s board of directors.

          Under the Waterfall valuation method, Main Street estimates the enterprise value of a portfolio company using a combination of market and income approaches or other appropriate valuation methods, such as considering recent transactions in the equity securities of the portfolio company or third-party valuations of the portfolio company, and then performs a waterfallWaterfall calculation by allocating the enterprise value over the


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          portfolio company'scompany’s securities in order of their preference relative to one another. The enterprise value is the fair value at which an enterprise could be sold in a transaction between two willing parties, other than through a forced or liquidation sale. Typically, privateprivately held companies are bought and sold based on multiples of earnings before interest, taxes, depreciation and amortization ("EBITDA"(“EBITDA”), cash flows, net income, revenues, or in limited cases, book value. There is no single methodology for estimating enterprise value. For any one portfolio company, enterprise value is generally described as a range of values from which a single estimate of enterprise value is derived. In estimating the enterprise value of a portfolio company, Main Street analyzes various factors including the portfolio company'scompany’s historical and projected financial results. Due to

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          SEC deadlines for Main Street'sStreet’s quarterly and annual financial reporting, the operating results of a portfolio company used in the current period valuation are generally the results from the period ended three months prior to such valuation date and may include unaudited, projected, budgeted or pro forma financial information and may require adjustments for non-recurring items or to normalize the operating results that may require significant judgment in its determination.determining. In addition, projecting future financial results requires significant judgment regarding future growth assumptions. In evaluating the operating results, Main Street also analyzes the impact of exposure to litigation, loss of customers or other contingencies. After determining the appropriate enterprise value, Main Street allocates the enterprise value to investments in order of the legal priority of the various components of the portfolio company'scompany’s capital structure. In applying the Waterfall valuation method, Main Street assumes the loans are paid off at the principal amount in a change in control transaction and are not assumed by the buyer, which Main Street believes is consistent with its past transaction history and standard industry practices.

          Under the Yield-to-Maturity valuation method, Main Street also uses the income approach to determine the fair value of debt securities based on projections of the discounted future free cash flows that the debt security will likely generate, including analyzing the discounted cash flows of interest and principal amounts for the debt security, as set forth in the associated loan agreements, as well as the financial position and credit risk of the portfolio company. Main Street'sStreet’s estimate of the expected repayment date of its debt securities is generally the maturity date of the instrument, as Main Street generally intends to hold its loans and debt securities to maturity. The Yield-to-Maturity analysis also considers changes in leverage levels, credit quality, portfolio company performance, changes in market-based interest rates and other factors. Main Street will generally use the value determined by the Yield-to-Maturity analysis as the fair value for that security; however, because of Main Street'sStreet’s general intent to hold its loans to maturity, the fair value will not exceed the principal amount of the debt security valued using the Yield-to-Maturity valuation method. A change in the assumptions that Main Street uses to estimate the fair value of its debt securities using the Yield-to-Maturity valuation method could have a material impact on the determination of fair value. If there is deterioration in credit quality or if a debt security is in workout status, Main Street may consider other factors in determining the fair value of the debt security, including the value attributable to the debt security from the enterprise value of the portfolio company or the proceeds that would most likely be received in a liquidation analysis.

          Under the NAV valuation method, for an investment in an investment fund that does not have a readily determinable fair value, Main Street measures the fair value of the investment predominately based on the NAV of the investment fund as of the measurement date and adjusts the investment'sinvestment’s fair value for factors known to Main Street that would affect that fund'sfund’s NAV, including, but not limited to, fair values for individual investments held by the fund if Main Street holds the same investment or for a publicly traded investment. In addition, in determining the fair value of the investment, Main Street considers whether adjustments to the NAV are necessary in certain circumstances, based on the analysis of any restrictions on redemption of Main Street'sStreet’s investment as of the measurement date, recent actual sales or redemptions of interests in the investment fund, and expected future cash flows available to equity holders, including the rate of return on those cash flows compared to an implied market return on equity required by market


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          participants, or other uncertainties surrounding Main Street'sStreet’s ability to realize the full NAV of its interests in the investment fund.

          Pursuant to its internal valuation process and the requirements under the 1940 Act, Main Street performs valuation procedures on each of its portfolio investments quarterly. In addition to its internal valuation process, in arriving at estimates of fair value for its investments in its LMM portfolio companies, Main Street, among other things, consults with a nationally recognized independent financial advisory services firm. The nationally recognized independent financial advisory services firm analyzes and provides observations, recommendations and an assurance certification regarding the Company'sCompany’s determinations of the fair value of its LMM portfolio company investments. The nationally recognized independent financial advisory services firm is generally consulted relative to Main Street'sStreet’s investments in each LMM portfolio company at least once every calendar year, and for Main Street'sStreet’s investments in new LMM portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders'stockholders’ best interest, to consult with the nationally recognized independent financial advisory services firm on its investments in one or more LMM portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street'sStreet’s investment in a LMM portfolio company is determined to be insignificant relative to the total Investment Portfolio. Main Street consulted with and received an assurance certification from its independent financial advisory services firm in arriving at Main Street'sStreet’s determination of fair value on its investments in a total of 5354 LMM portfolio companies for the

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          year ended December 31, 2021, representing approximately 81% of the total LMM portfolio at fair value as of December 31, 2021, and on a total of 58 LMM portfolio companies for the year ended December 31, 2017,2020, representing approximately 91% of the total LMM portfolio at fair value as of December 31, 2017, and on a total of 622020. Excluding its investments in LMM portfolio companies for the year ended December 31, 2016, representing approximately 93% of the total LMM portfolio at fair valuethat, as of December 31, 2016. Excluding its investments in new LMM portfolio companies which have2021 and 2020, as applicable, had not been in the Investment Portfolio for at least twelve months subsequent to the initial investment as of December 31, 2017 and 2016, as applicable, and its investments in the LMM portfolio companies that were not reviewed because their equityor whose primary purpose is publicly traded, which represented one LMM portfolio company as of December 31, 2016, or they holdto own real estate for which a third-party appraisal is obtained on at least an annual basis, the percentage of the LMM portfolio reviewed and certified by Main Street’s independent financial advisory services firm for both of the years ended December 31, 2021 and 2020 was 99% of the total LMM portfolio at fair value.

          For valuation purposes, all of Main Street’s Private Loan portfolio investments are non-control investments. For Private Loan portfolio investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Private Loan debt investments in a current hypothetical sale using the Yield-to-Maturity valuation method and such Private Loan equity investments in a current hypothetical sale using the Waterfall valuation method.

          In addition to its internal valuation process, in arriving at estimates of fair value for its investments in its Private Loan portfolio companies, Main Street, among other things, consults with a nationally recognized independent financial advisory services firm. The nationally recognized independent financial advisory services firm analyzes and provides observations and recommendations and an assurance certification regarding the Company’s determinations of the fair value of its Private Loan portfolio company investments. The nationally recognized independent financial advisory services firm is generally consulted relative to Main Street’s investments in each Private Loan portfolio company at least once every calendar year, and for Main Street’s investments in new Private Loan portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders’ best interest, to consult with the nationally recognized independent financial advisory services firm on its investments in one or more Private Loan portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street’s investment in a Private Loan portfolio company is determined to be insignificant relative to the total Investment Portfolio. Main Street consulted with and received an assurance certification from its independent financial advisory services firm in arriving at its determination of fair value on its investments in a total of 39 Private Loan portfolio companies for the year ended December 31, 2021, representing approximately 60% of the total Private Loan portfolio at fair value as of December 31, 2021, and on a total of 36 Private Loan portfolio companies for the year ended December 31, 2020, representing approximately 66% of the total Private Loan portfolio at fair value as of December 31, 2020. Excluding its investments in Private Loan portfolio companies that, as of December 31, 2021 and 2020, as applicable, had not been in the Investment Portfolio for at least twelve months subsequent to the initial investment and its investments in Private Loan portfolio companies that were not reviewed because the investment is valued based upon third-party quotes or other independent pricing, the percentage of the Private Loan portfolio reviewed and certified by Main Street’s independent financial advisory services firm for the years ended December 31, 20172021 and 20162020 was 97%93% and 98%92% of the total LMMPrivate Loan portfolio at fair value as of December 31, 20172021 and 2016,2020, respectively.

          For valuation purposes, all of Main Street'sStreet’s Middle Market portfolio investments are non-control investments. To the extent sufficient observable inputs are available to determine fair value, Main Street uses observable inputs to determine the fair value of these investments through obtaining third-partythird party quotes or other independent pricing. For Middle Market portfolio investments for which it has determined that third-partythird party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Middle Market debt investments in a current hypothetical sale using the Yield-to-Maturity valuation method and such Middle Market equity investments in a current hypothetical sale using the Waterfall valuation method. BecauseThe Company generally consults on a limited basis with a financial advisory services firm in connection with determining the fair value of its Middle Market portfolio investments due to the nature of these investments. The vast majority (93% and 90%, as of December 31, 2021 and 2020, respectively) of the Middle Market portfolio investments are valued using third-party quotes or other independent pricing services, or are new investments that will be consulted on once they have been in the Investment Portfolio for at least twelve months subsequent to the initial investment.

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          For valuation purposes, all of Main Street’s short-term portfolio investments are non-control investments. To the extent sufficient observable inputs are available to determine fair value, Main Street uses observable inputs to determine the fair value of these investments through obtaining third-party quotes or other independent pricing. Because all of the short-term portfolio investments are typically valued using third-party quotes or other independent pricing services, (including 95% and 94% of the Middle Market portfolio investments as of December 31, 2017 and 2016, respectively), Main Street generally does not generally consult with any financial advisory services firms in connection with determining the fair value of its Middle Marketshort-term portfolio investments.

          For valuation purposes, all of Main Street's Private Loan portfolio investments are non-control investments. For Private Loan portfolio investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Private Loan debt


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          investments in a current hypothetical sale using the Yield-to-Maturity valuation method and such Private Loan equity investments in a current hypothetical sale using the Waterfall valuation method.

                 In addition to its internal valuation process, in arriving at estimates of fair value for its investments in its Private Loan portfolio companies, Main Street, among other things, consults with a nationally recognized independent financial advisory services firm. The nationally recognized independent financial advisory services firm analyzes and provides observations and recommendations and an assurance certification regarding the Company's determinations of the fair value of its Private Loan portfolio company investments. The nationally recognized independent financial advisory services firm is generally consulted relative to Main Street's investments in each Private Loan portfolio company at least once every calendar year, and for Main Street's investments in new Private Loan portfolio companies, at least once in the twelve-month period subsequent to the initial investment. In certain instances, Main Street may determine that it is not cost-effective, and as a result is not in its stockholders' best interest, to consult with the nationally recognized independent financial advisory services firm on its investments in one or more Private Loan portfolio companies. Such instances include, but are not limited to, situations where the fair value of Main Street's investment in a Private Loan portfolio company is determined to be insignificant relative to the total Investment Portfolio. Main Street consulted with and received an assurance certification from its independent financial advisory services firm in arriving at its determination of fair value on its investments in a total of 26 Private Loan portfolio companies for the year ended December 31, 2017, representing approximately 57% of the total Private Loan portfolio at fair value as of December 31, 2017, and on a total of 26 Private Loan portfolio companies for the year ended December 31, 2016, representing approximately 68% of the total Private Loan portfolio at fair value as of December 31, 2016. Excluding its investments in new Private Loan portfolio companies which have not been in the Investment Portfolio for at least twelve months subsequent to the initial investment decision as of December 31, 2017 and 2016, as applicable, and its investments in its Private Loan portfolio companies that were not reviewed because the investment is valued based upon third-party quotes or other independent pricing, the percentage of the Private Loan portfolio reviewed and certified by its independent financial advisory services firm for the years ended December 31, 2017 and 2016 was 94% and 97% of the total Private Loan portfolio at fair value as of December 31, 2017 and 2016, respectively.

                 For valuation purposes, all of Main Street'sStreet’s Other Portfolio investments are non-control investments. Main Street'sStreet’s Other Portfolio investments comprised 4.8%4.7% and 5.0%3.6% of Main Street'sStreet’s Investment Portfolio at fair value as of December 31, 20172021 and 2016,2020, respectively. Similar to the LMM investment portfolio, market quotations for Other Portfolio equity investments are generally not readily available. For its Other Portfolio equity investments, Main Street generally determines the fair value of itsthese investments using the NAV valuation method. For its Other Portfolio debt investments for which it has determined that third-party quotes or other independent pricing are not available or appropriate, Main Street generally estimates the fair value based on the assumptions that it believes hypothetical market participants would use to value such Other Portfolio debt investments in a current hypothetical sale using the Yield-to-Maturity valuation method. For its Other Portfolio debt investments for which third-party quotes or other independent pricing are available and appropriate, Main Street determines the fair value of these investments through obtaining third-party quotes or other independent pricing to the extent that these inputs are available and appropriate to determine fair value.

          For valuation purposes, Main Street'sStreet’s investment in the External Investment Manager is a control investment. Market quotations are not readily available for this investment, and as a result, Main Street determines the fair value of the External Investment Manager using the Waterfall valuation method under the market approach. In estimating the enterprise value, Main Street analyzes various factors, including the entity'sentity’s historical and projected financial results, as well as its size, marketability and performance relative to the population of market comparables. This valuation approach estimates the value of the investment as if Main Street were to sell, or exit, the investment. In addition, Main Street considers its ability to control the


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          capital structure of the company, as well as the timing of a potential exit, in connection with determining the fair value of the External Investment Manager.

          Due to the inherent uncertainty in the valuation process, Main Street'sStreet’s determination of fair value for its Investment Portfolio may differ materially from the values that would have been determined had a ready market for the securities existed. In addition, changes in the market environment, portfolio company performance and other events that may occur over the lives of the investments may cause the gains or losses ultimately realized on these investments to be materially different than the valuations currently assigned. Main Street determines the fair value of each individual investment and records changes in fair value as unrealized appreciation or depreciation.

          Main Street uses an internally developed portfolio investment rating system in connection with its investment oversight, portfolio management and analysis and investment valuation procedures for its LMM portfolio companies. This system takes into account both quantitative and qualitative factors of the LMM portfolio company and the investments held therein.

                 The BoardIn December 2020, the SEC adopted Rule 2a-5 under the 1940 Act, which permits a BDC’s board of Directors of Main Street has the final responsibility for overseeing, reviewing and approving, in good faith, Main Street's determination ofdirectors to designate its executive officers or investment adviser as a valuation designee to determine the fair value for its Investment Portfolio,investment portfolio, subject to the active oversight of the board. Main Street’s Board of Directors has approved policies and procedures pursuant to Rule 2a-5 (the “Valuation Procedures”) and has designated a group of its executive officers to serve as well as itsthe Board’s valuation procedures, consistent with 1940 Act requirements.designee. Main Street adopted the Valuation Procedures effective April 1, 2021. Main Street believes its Investment Portfolio as of December 31, 20172021 and 20162020 approximates fair value as of those dates based on the markets in which Main Streetit operates and other conditions in existence on those reporting dates.

          2.           Use of Estimates

          The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the period. Actual results may differ from these estimates under different conditions or assumptions. Additionally, as explained in Note B.1., the consolidated financial statements include investments in the Investment Portfolio whose values have been estimated by Main Street, with the oversight, reviewpursuant to valuation policies and approvalprocedures approved and overseen by Main Street'sStreet’s Board of Directors, in the absence of readily ascertainable market values. Because of the inherent uncertainty of the Investment Portfolio valuations, those estimated values may differ materially from the values that would have been determined had a ready market for the securities existed.

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          The COVID-19 pandemic, and the related effect on the U.S. and global economies, has impacted, and threatens to continue to impact, the businesses and operating results of certain of Main Street’s portfolio companies, as well as market interest rate spreads. As a result of these and other current effects of the COVID-19 pandemic, as well as the uncertainty regarding the extent and duration of its impact, the valuation of Main Street’s Investment Portfolio has experienced increased volatility since the beginning of the COVID-19 pandemic.

          3.           Cash and Cash Equivalents

          Cash and cash equivalents consist of cash and highly liquid investments with an original maturity of three months or less at the date of purchase. Cash and cash equivalents are carried at cost, which approximates fair value.

          At December 31, 2017,2021, cash balances totaling $47.9$30.0 million exceeded Federal Deposit Insurance Corporation insurance protection levels, subjecting the Company to risk related to the uninsured balance. All of the Company'sCompany’s cash deposits are held at large established high credit quality financial institutions and management believes that the risk of loss associated with any uninsured balances is remote.

          4.            Interest, Dividend and Fee Income

          Main Street records interest and dividend income on the accrual basis to the extent amounts are expected to be collected. Dividend income is recorded as dividends are declared by the portfolio company or at the point an obligation exists for the portfolio company to make a distribution. In accordance with Main Street'sStreet’s valuation policies, Main Street evaluates accrued interest and dividend income periodically for collectability.


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          When a loan or debt security becomes 90 days or more past due, and if Main Street otherwise does not expect the debtor to be able to service all of its debt or other obligations, Main Street will generally place the loan or debt security on non-accrual status and cease recognizing interest income on that loan or debt security until the borrower has demonstrated the ability and intent to pay contractual amounts due. If a loan or debt security'ssecurity’s status significantly improves regarding the debtor'sdebtor’s ability to service the debt or other obligations, or if a loan or debt security is sold or written off, Main Street removes it from non-accrual status.

          As of December 31, 2017,2021, Main Street'sStreet’s total Investment Portfolio had fivenine investments on non-accrual status, which comprised approximately 0.2%0.7% of its fair value and 2.3%3.3% of its cost. As of December 31, 2016,2020, Main Street'sStreet’s total Investment Portfolio had fourseven investments on non-accrual status, which comprised approximately 0.6%1.3% of its fair value and 3.0%3.6% of its cost.

          Main Street holds certain debt and preferred equity instruments in its Investment Portfolio that contain payment-in-kind ("PIK"(“PIK”) interest and cumulative dividend provisions. The PIK interest, computed at the contractual rate specified in each debt agreement, is periodically added to the principal balance of the debt and is recorded as interest income. Thus, the actual collection of this interest may be deferred until the time of debt principal repayment. Cumulative dividends are recorded as dividend income, and any dividends in arrears are added to the balance of the preferred equity investment. The actual collection of these dividends in arrears may be deferred until such time as the preferred equity is redeemed or sold. To maintain RIC tax treatment (as discussed in Note B.9. below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though Main Street may not have collected the PIK interest and cumulative dividends in cash. For the years ended December 31, 2021, 2020 and 2019 (i) approximately 2.6%, 2.8% and 2.0%, respectively, of Main Street’s total investment income was attributable to PIK interest income not paid currently in cash and (ii) approximately 0.6%, 0.8% and 1.0%, respectively, of Main Street’s total investment income was attributable to cumulative dividend income not paid currently in cash. Main Street stops accruing PIK interest and cumulative dividends and writes off any accrued and uncollected interest and dividends in arrears when it determines that such PIK interest and dividends in arrears are no longer collectible. For the years ended December 31, 2017, 2016 and 2015, (i) approximately 2.4%, 3.6% and 2.2%, respectively, of Main Street's total investment income was attributable to PIK interest income not paid currently in cash and (ii) approximately 1.6%, 1.2% and 1.0%, respectively, of Main Street's total investment income was attributable to cumulative dividend income not paid currently in cash.

          Main Street may periodically provide services, including structuring and advisory services, to its portfolio companies or other third parties. For services that are separately identifiable and evidence exists to substantiate fair value, fee income is recognized as earned, which is generally when the investment or other applicable transaction closes. Fees received in connection with debt financing transactions for services that do not meet these criteria are treated as debt origination fees and are deferred and accreted into income over the life of the financing.

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          A presentation of thetotal investment income Main Street received from its Investment Portfolio in each of the periods presented is as follows:

          Twelve Months Ended December 31, 

              

          2021

              

          2020

              

          2019

          (dollars in thousands)

          Interest, fee and dividend income:

          Interest income

          $

          193,667

          $

          173,676

          $

          187,381

          Dividend income

           

          81,153

           

          36,373

           

          49,782

          Fee income

           

          14,227

           

          12,565

           

          6,210

          Total interest, fee and dividend income

          $

          289,047

          $

          222,614

          $

          243,373

           
           Twelve Months Ended December 31, 
           
           2017 2016 2015 
           
           (dollars in thousands)
           

          Interest, fee and dividend income:

                    

          Interest income

           $161,934 $138,689 $131,333 

          Dividend income

            34,704  32,182  24,266 

          Fee income

            9,103  7,294  8,004 

          Total interest, fee and dividend income

           $205,741 $178,165 $163,603 

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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          5.           Deferred Financing Costs

          Deferred financing costs include commitment fees and other costs related to Main Street'sStreet’s multi-year revolving credit facility (the "Credit Facility", as discussed further in Note F)“Credit Facility”) and its unsecured notes, (as discussed further in Note G), as well as the commitment fees and leverage fees (approximately 3.4% of the total commitment and draw amounts, as applicable) on the SBIC debentures (as discusseddebentures. See further discussion of Main Street’s debt in Note E) which are not accounted for under the fair value option under ASC 825 (as discussed further in Note B.11.).E. Deferred financing costs in connection with the Credit Facility are capitalized as an asset. Deferred financing costs in connection with all other debt arrangements not using the fair value option are a direct deduction from the related debt liability.

          6.           Equity Offering Costs

          The Company's equityCompany’s offering costs are charged against the proceeds from equity offerings when the proceeds are received.

          7.           Unearned Income — Income—Debt Origination Fees and Original Issue Discount and Discounts/Discounts / Premiums to Par Value

          Main Street capitalizes debt origination fees received in connection with financings and reflects such fees as unearned income netted against the applicable debt investments. The unearned income from the fees is accreted into income based on the effective interest method over the life of the financing.

          In connection with its portfolio debt investments, Main Street sometimes receives nominal cost warrants or warrants with an exercise price below the fair value of the underlying equity (together, "nominal“nominal cost equity"equity”) that are valued as part of the negotiation process with the particular portfolio company. When Main Street receives nominal cost equity, Main Street allocates its cost basis in its investment between its debt security and its nominal cost equity at the time of origination based on amounts negotiated with the particular portfolio company. The allocated amounts are based upon the fair value of the nominal cost equity, which is then used to determine the allocation of cost to the debt security. Any discount recorded on a debt investment resulting from this allocation is reflected as unearned income, which is netted against the applicable debt investment, and accreted into interest income based on the effective interest method over the life of the debt investment. The actual collection of this interest is deferred until the time of debt principal repayment.

          Main Street may also purchase debt securities at a discount or at a premium to the par value of the debt security. In the case of a purchase at a discount, Main Street records the investment at the par value of the debt security net of the discount, and the discount is accreted into interest income based on the effective interest method over the life of the debt investment. In the case of a purchase at a premium, Main Street records the investment at the par value of the debt security plus the premium, and the premium is amortized as a reduction to interest income based on the effective interest method over the life of the debt investment.

          To maintain RIC tax treatment (as discussed in Note B.9. below), these non-cash sources of income may need to be paid out to stockholders in the form of distributions, even though Main Street may not have collected the interest

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          income. For the years ended December 31, 2017, 20162021, 2020 and 2015,2019, approximately 3.6%2.0%, 3.1%2.7% and 2.6%2.7%, respectively, of Main Street'sStreet’s total investment income was attributable to interest income from the accretion of discounts associated with debt investments, net of any premium reduction.

          8.           Share-Based Compensation

          Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718,Compensation — Compensation—Stock Compensation. Accordingly, for restricted stock awards, Main Street measures the grant date fair value based upon the market price of its common stock on the date of the grant


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          and amortizes the fair value of the awards as share-based compensation expense over the requisite service period, which is generally the vesting term.

                 Effective January 1, 2016, Main Street elected early adoption ofhas also adopted Accounting Standards Update ("ASU"(“ASU”) 2016-09,Compensation — Compensation—Stock Compensation: Improvements to Employee Share-Based Payment Accounting ("ASU 2016-09," as discussed further below in Note B.13.). ASU 2016-09, which requires that all excess tax benefits and tax deficiencies (including tax benefits of dividends on share-based payment awards) should be recognized as income tax expense or benefit in the income statement and no longernot delay recognition of a tax benefit until the tax benefit is realized through a reduction to taxes payable. TheAccordingly, the tax effects of exercised or vested awards should beare treated as discrete items in the reporting period in which they occur. Additionally, ASU 2016-09 allows an entity to make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest, net of forfeitures, (current GAAP) or account for forfeitures when they occur. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures and intrinsic value should be applied using a modified retrospective transition method by means of a cumulative-effect adjustment to equity as of the beginning of the period in which the guidance is adopted. As such, Main Street recorded a $1.8 million adjustment to "Net Unrealized Appreciation, Net of Income Taxes" on the consolidated balance sheet to capture the cumulative tax effect as of January 1, 2016. Main Street has elected to account for forfeitures as they occur and this change had no impact on its consolidated financial statements. The additional amendments (cash flows classification, minimum statutory tax withholding requirements and classification of awards as either a liability or equity) did not have an effect on Main Street's consolidated financial statements.occur.

          9.            Income Taxes

          MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC'sMSCC’s taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally distribute at least 90% of its "investment“investment company taxable income"income” (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) the filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

          The Taxable Subsidiaries primarily hold certain portfolio investments for Main Street. The Taxable Subsidiaries permit Main Street to hold equity investments in portfolio companies which are "pass-through"“pass-through” entities for tax purposes and to continue to comply with the "source-of-income"“source-of-income” requirements contained in the RIC tax provisions of the Code. The Taxable Subsidiaries are consolidated with Main Street for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in Main Street'sStreet’s consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for income tax purposes and may generate income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable income, or loss, of the Taxable Subsidiaries may differ from itstheir book income, or loss, due to temporary book and tax timing differences and permanent differences. The Taxable Subsidiaries are each taxed at their normal corporate tax rates based on their taxable income. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the Taxable Subsidiaries are reflected in Main Street'sStreet’s consolidated financial statements.


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          The External Investment Manager is an indirect wholly owned subsidiary of MSCC owned through a Taxable Subsidiary and is a disregarded entity for tax purposes. The External Investment Manager has entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment Manager is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC'sMSCC’s consolidated financial statements, and as a result of the tax sharing agreement with its Taxable Subsidiary owner, for its stand-alone financial reporting purposes the External Investment Manager is treated as if it is taxed at normal corporate tax rates based on its taxable income and, as a result of its activities, may generate income tax expense or benefit. The income tax expense, or

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          benefit, if any, and the related tax assets and liabilities, of the External Investment Manager are reflected in the External Investment Manager'sManager’s separate financial statements.

                 In December 2017, the "Tax Cuts and Jobs Act" legislation was enacted. The Tax Cuts and Jobs Act includes significant changes to the U.S. corporate tax system, including a U.S. federal corporate income tax rate reduction from 35% to 21% and other changes. ASC 740,Income Taxes, requires the effects of changes in tax rates and laws on deferred tax balances to be recognized in the period in which the legislation was enacted. As such, we have accounted for the tax effects as a result of the enactment of the Tax Cuts and Jobs Act as of December 31, 2017.

          The Taxable Subsidiaries and the External Investment Manager use the liability method in accounting for income taxes. Deferred tax assets and liabilities are recorded for temporary differences between the tax basis of assets and liabilities and their reported amounts in the consolidated financial statements, using statutory tax rates in effect for the year in which the temporary differences are expected to reverse. A valuation allowance is provided, if necessary, against deferred tax assets when it is more likely than not that some portion or all of the deferred tax asset will not be realized. Our stockholder’s equity includes an adjustment to classification as a result of permanent book-to-tax differences, which include differences in the book and tax treatment of income and expenses.

          Taxable income generally differs from net income for financial reporting purposes due to temporary and permanent differences in the recognition of income and expenses. Taxable income generally excludes net unrealized appreciation or depreciation, as investment gains or losses are not included in taxable income until they are realized.

          10.         Net Realized Gains or Losses and Net Change in Unrealized Appreciation or Depreciation

          Realized gains or losses are measured by the difference between the net proceeds from the sale or redemption of an investment or a financial instrument and the cost basis of the investment or financial instrument, without regard to unrealized appreciation or depreciation previously recognized, and includes investments written-off during the period net of recoveries and realized gains or losses from in-kind redemptions. Net change in unrealized appreciation or depreciation reflects the net change in the fair value of the Investment Portfolio and financial instruments and the reclassification of any prior period unrealized appreciation or depreciation on exited investments and financial instruments to realized gains or losses.

          11.         Fair Value of Financial Instruments

          Fair value estimates are made at discrete points in time based on relevant information. These estimates may be subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Main Street believes that the carrying amounts of its financial instruments, consisting of cash and cash equivalents, receivables, payables and other liabilities approximate the fair values of such items due to the short-term nature of these instruments.

                 As part of Main Street's acquisition of the majority of the equity interests of MSC II in January 2010 (the "MSC II Acquisition"), Main Street electedTo estimate the fair value option under ASC 825,Financial Instruments ("ASC 825"), relating to accounting forof Main Street’s multiple tranches of unsecured debt obligations at theirinstruments as disclosed in Note E – Debt, Main Street uses quoted market prices. For the estimated fair value of Main Street’s SBIC debentures, Main Street uses the Yield-to-Maturity valuation method based on projections of the discounted future free cash flows that the debt security will likely generate, including both the discounted cash flows of the associated interest and principal amounts for the MSC II SBIC debentures


          Table of Contentsdebt security.


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          acquired as part of the acquisition accounting related to the MSC II Acquisition and values those obligations as discussed further in Note C. In order to provide for a more consistent basis of presentation, Main Street has continued to elect the fair value option for SBIC debentures issued by MSC II subsequent to the MSC II Acquisition. When the fair value option is elected for a given SBIC debenture, the deferred loan costs associated with the debenture are fully expensed in the current period to "Net Change in Unrealized Appreciation (Depreciation) — SBIC debentures" as part of the fair value adjustment. Interest incurred in connection with SBIC debentures which are valued at fair value is included in interest expense.

          12.         Earnings per Share

          Basic and diluted per share calculations are computed utilizing the weighted-average number of shares of common stock outstanding for the period. In accordance with ASC 260,Earnings Per Share, the unvested shares of restricted stock awarded pursuant to Main Street'sStreet’s equity compensation plans are participating securities and, therefore, are included in the basic earnings per share calculation. As a result, for all periods presented, there is no difference between diluted earnings per share and basic earnings per share amounts.

          13.         Recently Issued or Adopted Accounting Standards

          In May 2014,March 2020, the FASB issued ASU 2014-09,Revenue from Contracts with Customers2020-04, “Reference rate reform (Topic 606). ASU 2014-09 supersedes the revenue recognition requirements under ASC 605,Revenue Recognition, and most industry-specific guidance throughout the Industry Topics848)—Facilitation of the ASC.effects of reference rate reform on financial reporting.” The core principle of the guidance isamendments in this update provide optional expedients and exceptions for applying U.S. GAAP to certain contracts and hedging relationships that an entity should recognize revenue to depict the transfer of promised goodsreference LIBOR or services to customers in an amount that reflects the consideration to which an entity expectsanother reference rate expected to be entitled in exchangediscontinued due to reference rate reform and became effective upon issuance for those goods or services. Under the new guidance, an entity is required to perform the following five steps: (1) identify the contract(s) with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when (or as) the entity satisfies a performance obligation.all entities. The new guidance will significantly enhance comparability of revenue recognition practices across entities, industries, jurisdictions and capital markets. Additionally, the guidance requires improved disclosures as to the nature, amount, timing and uncertainty of revenueCompany has agreements that is recognized. In March 2016, the FASB issued ASU 2016-08,Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarified the implementation guidance on principal versus agent considerations. In April 2016, the FASB issued ASU 2016-10,Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing, which clarified the implementation guidance regarding performance obligations and licensing arrangements. In May 2016, the FASB issued ASU No. 2016-12,Revenue from Contracts with Customers (Topic 606) — Narrow-Scope Improvements and Practical Expedients, which clarified guidance on assessing collectability, presenting sales tax, measuring noncash consideration, and certain transition matters. In December 2016, the FASB issued ASU No. 2016-20,Revenue from Contracts with Customers (Topic 606) — Technical Corrections and Improvements, which provided disclosure relief, and clarified the scope and application of the new revenue standard and related cost guidance. The new guidance will be effective for the annual reporting period beginning after December 15, 2017, including interim periods within that reporting period. Early adoption would be permitted for annual reporting periods beginning after December 15, 2016. Main Street expects to identify similar performance obligations under ASC 606 as compared with deliverables and separate units of account previously identified. As a result, Main Street expects timing of its revenue recognition to remain the same.

                 In April 2015, the FASB issued ASU 2015-03,Interest — Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, which requires debt financing costs related to a recognized debt liability to be presented on the balance sheethave LIBOR as a direct deduction from the related debt liability, similar to the presentation of debt discounts. Additionally in August 2015, the FASB issuedreference rate with certain portfolio companies and also


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          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          with certain lenders. Many of these agreements include language for choosing an alternative successor rate if LIBOR reference is no longer considered to be appropriate. Contract modifications are required to be evaluated in determining whether the modifications result in the establishment of new contracts or the continuation of existing contracts. The Company adopted this amendment in March 2020 and plans to apply the amendments in this update to account for contract modifications due to changes in reference rates when LIBOR reference is no longer used. The Company did not utilize the optional expedients and exceptions provided by ASU 2015-15,Interest — Imputation of Interest: Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements, which provides further clarification on2020-04 during the same topic and statesyear ended December 31, 2021. The Company continues to evaluate the impact that the amendments in this update will have on its consolidated financial statements and disclosures when applied.

          In May 2020, the SEC would not objectpublished Release No. 33-10786 (the “May 2020 Release”), Amendments to Financial Disclosures about Acquired and Disposed Businesses, announcing its adoption of rules amending Rule 1-02(w)(2) under Regulation S-X used in the determination of a significant subsidiary specific to investment companies, including BDCs. In part, the rules adopted pursuant to the deferral and presentation of debt issuance costs as an asset and subsequent amortizationMay 2020 Release eliminated the use of the deferred costs overasset test, and amended the termincome and investment tests for determining whether an unconsolidated subsidiary requires additional disclosure in the footnotes of the line-of-credit arrangement, regardless of whether there are any outstanding borrowings on the line-of-credit arrangement.financial statements. Main Street adopted the guidance for debt arrangements that are not line-of-credit arrangements as ofrules pursuant to the May 2020 Release during the quarter ended June 30, 2017. Comparative financial statements of prior interim and annual periods have been adjusted to apply the new method retrospectively. As a result of the adoption, Main Street reclassified $7.9 million of deferred financing costs assets to a direct deduction from the related debt liability on the consolidated balance sheet as of December 31, 2016.2020. The adoption of this guidance had no impact on net assets, the consolidated statements of operations or the consolidated statements of cash flows.

                 In May 2015, the FASB issued ASU 2015-07,Fair Value Measurements — Disclosures for Certain Entities that Calculate Net Asset Value per Share. This amendment updates guidance intended to eliminate the diversity in practice surrounding how investments measured at net asset value under the practical expedient with future redemption dates have been categorized in the fair value hierarchy. Under the updated guidance, investments for which fair value is measured at net asset value per share using the practical expedient should no longer be categorized in the fair value hierarchy, while investments for which fair value is measured at net asset value per share but the practical expedient is not applied should continue to be categorized in the fair value hierarchy. The updated guidance requires retrospective adoption for all periods presented and is effective for interim and annual reporting periods beginning after December 15, 2015, with early adoption permitted. Main Street adopted this standard during the three months ended March 31, 2016. There was no impact of the adoption of this new accounting standardthese rules on Main Street'sStreet’s consolidated financial statements as nonewas not material.

          In December 2020, the SEC published Release No. IC-34084 (the “December 2020 Release”) Use of Derivatives by Registered Investment Companies and Business Development Companies, announcing its investments are measured throughadoption of Rule 18f-4 and amendment of Rule 6c-11 under the 1940 Act to provide an updated, comprehensive approach to the regulation of registered investment companies’, including BDCs’, use of derivatives and address investor protection concerns. In part, the practical expedient.

                 In February 2016,rules adopted pursuant to the FASB issued ASU 2016-02, Leases, which requires lesseesDecember 2020 Release require that funds using derivatives generally will have to recognizeadopt a derivatives risk management program that a derivatives risk manager administers and that the fund’s board of directors oversees, and comply with an outer limit on the balance sheetfund leverage. Funds that use derivatives only in a right-of-use asset, representing its rightlimited manner will not be subject to use the underlying asset for the lease term,these requirements, but they will have to adopt and a lease liability for all leases with terms greater than 12 months. The guidance also requires qualitativeimplement policies and quantitative disclosuresprocedures reasonably designed to assessmanage the amount, timing,fund’s derivatives risks. Funds also will be subject to reporting and uncertainty of cash flows arising from leases. The standard requires the use of a modified retrospective transition approach, which includes a number of optional practical expedients that entities may elect to apply. The new guidance is effective for annual periods beginning after December 15, 2018, and interim periods therein. Early application is permitted. Whilerecordkeeping requirements regarding their derivatives use. Main Street continues to assessadopted the effect of adoption, Main Street currently believes the most significant change relatesrules pursuant to the recognition of a new right-of-use asset and lease liability on its consolidated balance sheet for its office space operating lease. Main Street currently has one operating lease for office space and does not expect a significant change in the leasing activity between now and adoption. See further discussion of the operating lease obligation in Note M.

                 In March 2016, the FASB issued ASU 2016-09, which is intended to simplify several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. The new guidance is effective for annual periods beginning after December 15, 2016, and interim periods therein. Early application is permitted. Main Street elected to early adopt this standard2020 Release during the three monthsquarter ended March 31, 2016. See further discussion2021. As Main Street is a limited user of derivatives, the impact of the adoption of this standardthese rules on the consolidated financial statements was not material.

          In December 2021, the SEC published Staff Accounting Bulletin No. 120 (“SAB 120”) to provide accounting and disclosure guidance for stock compensation awards made to executives and conforming amendments to the Staff Accounting Bulletin Series to align with the current authoritative accounting guidance in Note B.8.

          ASC 718, Compensation – Stock Compensation. In August 2016,part, SAB 120 requires that an entity disclose how it determines the FASB issued ASU 2016-15,Statementcurrent price of Cash Flows (Topic 230), whichunderlying shares for grant-date fair value, the policy for when an adjustment to the share price is intendedrequired, how it determines the amount of an adjustment to reduce the existing diversityshare price and any significant assumptions used in practice in how certain cash receipts and cash payments are presented and classified indetermining an adjustment to the statement of cash flows. The guidanceshare price. SAB 120 is effective for annual periods beginningall stock compensation awards issued after December 15, 2017,1, 2021. Main Street is in the compliance with the guidance pursuant to SAB 120 for any share-based compensation disclosures. See Note J – Share-Based Compensation for further discussion of Main Street’s policies and interim periods therein. Early application is permitted. Theprocedures regarding share-based compensation. Main Street does not expect the impact of SAB 120 to be material to the adoption of


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          this new accounting standard on Main Street's consolidated financial statements is not expected to be material.and the notes thereto.

          From time to time, new accounting pronouncements are issued by the FASB or other standards setting bodies that are adopted by Main Street as of the specified effective date. Main Street believes that the impact of recently issued standards and any that are not yet effective will not have a material impact on its consolidated financial statements upon adoption.

          NOTE C — C—FAIR VALUE HIERARCHY FOR INVESTMENTS AND DEBENTURES — DEBENTURES—PORTFOLIO COMPOSITION

          ASC 820 defines fair value, establishes a framework for measuring fair value, establishes a fair value hierarchy based on the quality of inputs used to measure fair value, and enhances disclosure requirements for fair value measurements. Main Street accounts for its investments at fair value.

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          Fair Value Hierarchy

          In accordance with ASC 820, Main Street has categorized its investments based on the priority of the inputs to the valuation technique into a three-level fair value hierarchy. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical investments (Level 1) and the lowest priority to unobservable inputs (Level 3).

          Investments recorded on Main Street'sStreet’s balance sheet are categorized based on the inputs to the valuation techniques as follows:

          As required by ASC 820, when the inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement in its entirety. For example, a Level 3 fair value measurement may include inputs that are observable (Levels 1 and 2) and unobservable (Level 3). Therefore, unrealized appreciation and depreciation related to such investments categorized within the Level 3 tables below may


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          include changes in fair value that are attributable to both observable inputs (Levels 1 and 2) and unobservable inputs (Level 3). Main Street conducts reviews of fair value hierarchy classifications on a quarterly basis. During the classification process, Main Street may determine that it is appropriate to transfer investments between fair value hierarchy Levels. These transfers occur when Main Street has concluded that it is appropriate for the classification of an individual asset to be changed due to a change in the factors used to determine the selection of the Level. Any such changes are deemed to be effective during the quarter in which the transfer occurs.

          As of December 31, 2017,2021 and 2020, all of Main Street'sStreet’s LMM portfolio investments consisted of illiquid securities issued by private companies. As a result, as of December 31, 2017,privately held companies and the fair value determination for all of Main Street's LMM portfoliothese investments primarily consisted of unobservable inputs. As a result, all of Main Street'sStreet’s LMM portfolio investments were categorized as Level 3 as of December 31, 2017. 2021 and 2020.

          As of December 31, 2016, all of2021 and 2020, Main Street's LMM portfolio investments except for the equity investment in one portfolio company consisted of illiquid securities issued by private companies. The investment which was the exception was in a company with publicly traded equity. As a result, the fair value determination for the LMMStreet’s Private Loan portfolio investments primarily consisted of unobservable inputs.investments in interest-bearing secured debt investments. The fair value determination for the publicly traded equity securitythese investments consisted of a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value.value of these investments and unobservable inputs. As a result, all of Main Street's LMMStreet’s Private Loan portfolio investments were categorized as Level 3 as of December 31, 2016, except for the one publicly traded equity security which was categorized as Level 2.2021 and 2020.

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          As of December 31, 20172021 and 2016,2020, Main Street'sStreet’s Middle Market portfolio investments consisted primarily of investments in secured and unsecured debt investments and independently rated debt investments. The fair value determination for these investments consisted of a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value of these investments and unobservable inputs. As a result, all of Main Street'sStreet’s Middle Market portfolio investments were categorized as Level 3 as of December 31, 20172021 and 2016.2020.

          As of December 31, 20172021 and 2016,2020, Main Street's Private Loan portfolio investments primarily consisted of investments in interest-bearing secured debt investments. The fair value determination for these investments consisted of a combination of observable inputs in non-active markets for which sufficient observable inputs were not available to determine the fair value of these investments and unobservable inputs. As a result, all of Main Street's Private Loan portfolio investments were categorized as Level 3 as of December 31, 2017 and 2016.

                 As of December 31, 2017 and 2016, Main Street'sStreet’s Other Portfolio investments consisted of illiquid securities issued by private companies. Theprivately held companies and the fair value determination for these investments primarily consisted of unobservable inputs. As a result, all of Main Street'sStreet’s Other Portfolio investments were categorized as Level 3 as of December 31, 20172021 and 2016.2020.

          As of December 31, 2021, Main Street held one short-term portfolio investment, which was a secured debt investment. The fair value determination for this investment consisted of available observable inputs in non-active markets sufficient to determine the fair value of the investment. As a result, Main Street’s short-term portfolio investment was categorized as Level 2 as of December 31, 2021. Main Street did not hold any short-term portfolio investments as of December 31, 2020.

          The fair value determination of each portfolio investment categorized as Level 3 required one or more of the following unobservable inputs:

          Financial information obtained from each portfolio company, including unaudited statements of operations and balance sheets for the most recent period available as compared to budgeted numbers;
          Current and projected financial condition of the portfolio company;
          Current and projected ability of the portfolio company to service its debt obligations;
          Type and amount of collateral, if any, underlying the investment;
          Current financial ratios (e.g., fixed charge coverage ratio, interest coverage ratio and net debt/EBITDA ratio) applicable to the investment;
          Current liquidity of the investment and related financial ratios (e.g., current ratio and quick ratio);
          Pending debt or capital restructuring of the portfolio company;
          Projected operating results of the portfolio company;
          Current information regarding any offers to purchase the investment;
          Current ability of the portfolio company to raise any additional financing as needed;
          Changes in the economic environment which may have a material impact on the operating results of the portfolio company;
          Internal occurrences that may have an impact (both positive and negative) on the operating performance of the portfolio company;
          Qualitative assessment of key management;
          Contractual rights, obligations or restrictions associated with the investment; and

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          Other factors deemed relevant.


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          reporting date. The significant unobservable inputs used in the fair value measurement of Main Street'sStreet’s LMM equity securities, which are generally valued through an average of the discounted cash flow technique and the market comparable/enterprise value technique (unless one of these approaches is determined to not be appropriate), are (i) EBITDA multiples and (ii) the weighted-average cost of capital ("WACC"(“WACC”). Significant increases (decreases) in EBITDA multiple inputs in isolation would result in a significantly higher (lower) fair value measurement. On the contrary, significant increases (decreases) in WACC inputs in isolation would result in a significantly lower (higher) fair value measurement. The significant unobservable inputs used in the fair value measurement of Main Street'sStreet’s LMM, Middle Market, Private Loan and Other Portfolio debtMiddle Market securities are (i) risk adjusted discount rates used in the Yield-to-Maturity valuation technique (described in Note(see “Note B.1.—Valuation of the Investment Portfolio)Portfolio”) and (ii) the percentage of expected principal recovery. Significant increases (decreases) in any of these discount rates in isolation would result in a significantly lower (higher) fair value measurement. Significant increases (decreases) in any of these expected principal recovery percentages in isolation would result in a significantly higher (lower) fair value measurement. However, due to the nature of certain investments, fair value measurements may be based on other criteria, such as third-party appraisals of collateral and fair values as determined by independent third parties, which are not presented in the tables below.


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          The following tables provide a summary of the significant unobservable inputs used to fair value Main Street'sStreet’s Level 3 portfolio investments as of December 31, 20172021 and 2016:2020:

              

          Fair Value as of

              

              

              

              

              

           

          December 31, 

           

          Type of

          2021

          Significant

          Weighted

           

          Investment

           

          (in thousands)

          Valuation Technique

          Unobservable Inputs

          Range(3)

          Average(3)

          Median(3)

          Equity investments

          $

          1,050,269

           

          Discounted cash flow

           

          WACC

           

          9.1% - 20.6%

           

          13.8

          %

          14.8

          %

           

          Market comparable / Enterprise Value

           

          EBITDA multiple (1)

           

          4.8x - 7.7x(2)

           

          6.6x

           

          5.9x

          Debt investments

          $

          2,158,424

           

          Discounted cash flow

           

          Risk adjusted discount factor

           

          5.6% - 15.7%(2)

           

          9.8

          %

          9.3

          %

           

          Expected principal recovery percentage

           

          0.0% - 100.0%

           

          99.6

          %

          100.0

          %

          Debt investments

          $

          351,144

           

          Market approach

           

          Third‑party quote

           

          3.0 - 100.5

           

          94.4

           

          99.0

          Total Level 3 investments

          $

          3,559,837


          (1)EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment.
          (2)Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 2.2x - 11.0x and the range for risk adjusted discount factor is 4.2% - 38.5%.
          (3)Does not include investments for which the valuation technique does not include the use of the applicable fair value input.

          Type of Investment
           Fair Value as of
          December 31,
          2017
          (in thousands)
           Valuation Technique Significant
          Unobservable Inputs
           Range(3) Weighted
          Average(3)
           Median(3) 

          Equity investments

           $653,008 

          Discounted cash flow

           

          WACC

           11.1% - 23.2%  13.7%  14.0% 

              

          Market comparable / Enterprise Value

           

          EBITDA multiple(1)

           4.3x - 8.5x(2)  7.3x  6.0x 

          Debt investments

           
          $

          858,816
           

          Discounted cash flow

           

          Risk adjusted discount factor

           

          6.7% - 16.1%(2)

            
          11.2%
            
          11.0%
           

                

          Expected principal recovery percentage

           2.9% - 100.0%  99.8%  100.0% 

          Debt investments

           
          $

          659,481
           

          Market approach

           

          Third-party quote

           

          11.0 - 106.0

                 

          Total Level 3 investments            

           $2,171,305             

          143


          (1)
          EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment.

          (2)
          Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 4.0x - 17.5x and the range for risk adjusted discount factor is 4.3% - 30.0%.

          (3)
          Does not include investments for which the valuation technique does not include the use of the applicable fair value input.
          Type of Investment
           Fair Value as of
          December 31,
          2016
          (in thousands)
           Valuation Technique Significant
          Unobservable Inputs
           Range(3) Weighted
          Average(3)
           Median(3) 

          Equity investments

           $567,003 

          Discounted cash flow

           

          Weighted-average cost of capital

           10.4% - 23.1%  13.0%  13.7% 

              

          Market comparable / Enterprise Value

           

          EBITDA multiple(1)

           4.5x - 8.5x(2)  7.1x  6.0x 

          Debt investments

           $808,895 

          Discounted cash flow

           

          Risk adjusted discount factor

           7.4% - 15.9%(2)  11.8%  11.6% 

                

          Expected principal recovery percentage

           3.0% - 100.0%  99.7%  100.0% 

          Debt investments

           $618,928 

          Market approach

           

          Third-party quote

           22.5 - 108.0       

          Total Level 3 investments

           $1,994,826             

          (1)
          EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment.

          (2)
          Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 3.3x - 17.5x and the range for risk adjusted discount factor is 4.8% - 38.0%.

          (3)
          Does not include investments for which the valuation technique does not include the use of the applicable fair value input.

          Table of Contents

              

          Fair Value as of

              

              

              

              

              

           

          December 31, 

           

          Type of

          2020

          Significant

          Weighted

           

          Investment

           

          (in thousands)

          Valuation Technique

          Unobservable Inputs

          Range(3)

          Average(3)

          Median(3)

          Equity investments

          $

          877,732

           

          Discounted cash flow

           

          WACC

           

          9.4% - 21.0%

           

          14.3

          %

          15.0

          %

           

          Market comparable / Enterprise Value

           

          EBITDA multiple (1)

           

          4.5x - 8.5x(2)

           

          7.0x

           

          6.1x

          Debt investments

          $

          1,339,079

           

          Discounted cash flow

           

          Risk adjusted discount factor

           

          7.4% - 15.3%(2)

           

          10.6

          %

          10.8

          %

           

          Expected principal recovery percentage

           

          0.0% - 100.0%

           

          99.4

          %

          100.0

          %

          Debt investments

          $

          468,055

           

          Market approach

           

          Third‑party quote

           

          45.0 - 100.3

           

          94.7

           

          96.5

          Total Level 3 investments

          $

          2,684,866


          (1)EBITDA may include proforma adjustments and/or other addbacks based on specific circumstances related to each investment.
          (2)Range excludes outliers that are greater than one standard deviation from the mean. Including these outliers, the range for EBITDA multiple is 2.2x - 15.0x and the range for risk adjusted discount factor is 5.4% - 29.5%.
          (3)Does not include investments for which the valuation technique does not include the use of the applicable fair value input.


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          The following tables provide a summary of changes in fair value of Main Street'sStreet’s Level 3 portfolio investments for the years ended December 31, 20172021 and 20162020 (amounts in thousands):

          Net

          Fair Value

          Transfers

          Changes

          Net

          Fair Value

          as of

          Into

          from

          Unrealized

          as of

          Type of

           

          December 31, 

           

          Level 3

           

          Redemptions/

           

          New

           

          Unrealized

           

          Appreciation

           

          December 31, 

          Investment

              

          2020

              

          Hierarchy

              

          Repayments

              

          Investments

              

          to Realized

              

          (Depreciation)

              

          Other(1)

              

          2021

          Debt

          $

          1,807,134

          $

          $

          (909,464)

          $

          1,608,143

          $

          18,397

          $

          (10,844)

          $

          (3,798)

          $

          2,509,568

          Equity

          866,734

          (78,824)

          106,193

          (27,260)

          170,786

          6,080

          1,043,709

          Equity Warrant

          10,998

          (1,071)

          (2,159)

          1,074

          (2,282)

          6,560

          $

          2,684,866

          $

          $

          (989,359)

          $

          1,714,336

          $

          (11,022)

          $

          161,016

          $

          $

          3,559,837


          (1)Includes the impact of non-cash conversions. These transactions represent non-cash investing activities. See additional cash flow information at the consolidated statements of cash flows.

              

              

              

              

              

          Net

              

              

              

          Fair Value

          Transfers

          Changes

          Net

          Fair Value

          as of

          Into

          from

          Unrealized

          as of

          Type of

          December 31, 

          Level 3

          Redemptions/

          New

          Unrealized

          Appreciation

          December 31, 

          Investment

          2019

          Hierarchy

          Repayments

          Investments

           

          to Realized

          (Depreciation)

          Other(1)

          2020

          Debt

          $

          1,782,575

          $

          $

          (544,545)

          $

          560,536

          $

          110,099

          $

          (78,866)

          $

          (22,665)

          $

          1,807,134

          Equity

           

          809,538

           

          (51,251)

          114,733

          8,938

          (38,404)

          22,665

           

          866,219

          Equity Warrant

           

          10,211

           

          (2,245)

          2,245

          1,302

           

          11,513

          $

          2,602,324

          $

          $

          (598,041)

          $

          675,269

          $

          121,282

          $

          (115,968)

          $

          $

          2,684,866


          (1)Includes the impact of non-cash conversions. These transactions represent non-cash investing activities. See additional cash flow information at the consolidated statements of cash flows.
          Type of
          Investment
           Fair Value
          as of
          December 31,
          2016
           Transfers
          Into
          Level 3
          Hierarchy
           Redemptions/
          Repayments
           New
          Investments
           Net
          Changes
          from
          Unrealized
          to Realized
           Net
          Unrealized
          Appreciation
          (Depreciation)
           Other(1) Fair Value
          as of
          December 31,
          2017
           

          Debt

           $1,427,823 $ $(753,240)$848,014 $25,146 $(19,664)$(9,782)$1,518,297 

          Equity

            549,453    (44,773) 74,227  (25,596) 77,583  10,599  641,493 

          Equity Warrant

            17,550    (4,697) 331  (549) (303) (817) 11,515 

           $1,994,826 $ $(802,710)$922,572 $(999)$57,616 $ $2,171,305 

          (1)
          Includes the impact of non-cash conversions.
          Type of
          Investment
           Fair Value
          as of
          December 31,
          2015
           Transfers
          Into
          Level 3
          Hierarchy
           Redemptions/
          Repayments
           New
          Investments
           Net
          Changes
          from
          Unrealized
          to Realized
           Net
          Unrealized
          Appreciation
          (Depreciation)
           Other(1) Fair Value
          as of
          December 31,
          2016
           

          Debt

           $1,265,544 $ $(431,871)$555,490 $44,515 $1,295 $(7,150)$1,427,823 

          Equity

            519,966    (15,799) 86,037  (60,544) 12,643  7,150  549,453 

          Equity Warrant

            10,646    (1,011) 5,928  1,011  976    17,550 

           $1,796,156 $ $(448,681)$647,455 $(15,018)$14,914 $ $1,994,826 

          (1)
          Includes the impact of non-cash conversions.

                 As of December 31, 2017 and 2016, the fair value determination for the SBIC debentures recorded at fair value primarily consisted of unobservable inputs. As a result, the SBIC debentures which are recorded at fair value were categorized as Level 3. Main Street determines the fair value of these instruments primarily using a Yield-to-Maturity approach that analyzes the discounted cash flows of interest and principal for each SBIC debenture recorded at fair value based on estimated market interest rates for debt instruments of similar structure, terms, and maturity. Main Street's estimate of the expected repayment date of principal for each SBIC debenture recorded at fair value is the legal maturity date of the instrument. The significant unobservable inputs used in the fair value measurement of Main Street's SBIC debentures recorded at fair value are the estimated market interest rates used to fair value each debenture using the yield valuation technique described above. Significant increases (decreases) in the estimated market interest rates in isolation would result in a significantly lower (higher) fair value measurement.

                 The following tables provide a summary of the significant unobservable inputs used to fair value Main Street's Level 3 SBIC debentures as of December 31, 2017 and 2016 (amounts in thousands):

          Type of Instrument
           Fair Value
          as of
          December 31, 2017
           Valuation Technique Significant
          Unobservable Inputs
           Range Weighted
          Average
           

          SBIC debentures

           $48,608 Discounted cash flow Estimated market interest rates 4.9% - 5.5%  5.1%


          Type of Instrument
           Fair Value
          as of
          December 31, 2016
           Valuation Technique Significant
          Unobservable Inputs
           Range Weighted
          Average
           

          SBIC debentures

           $74,803 Discounted cash flow Estimated market interest rates 3.4% - 5.3%  4.2%

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

                 The following tables provide a summary of changes for the Level 3 SBIC debentures recorded at fair value for the years ended December 31, 2017 and 2016 (amounts in thousands):

          Type of Instrument
           Fair Value
          as of
          December 31,
          2016
           Repayments Net Realized
          Loss
           New SBIC
          Debentures
           Net
          Unrealized
          (Appreciation)
          Depreciation
           Fair Value
          as of
          December 31,
          2017
           

          SBIC debentures at fair value

           $74,803 $(25,200)$5,217 $ $(6,212)$48,608 


          Type of Instrument
           Fair Value
          as of
          December 31,
          2015
           Repayments New SBIC
          Debentures
           Net
          Unrealized
          (Appreciation)
          Depreciation
           Fair Value
          as of
          December 31,
          2016
           

          SBIC debentures at fair value

           $73,860 $ $ $943 $74,803 

          At December 31, 20172021 and 2016,2020, Main Street'sStreet’s investments and SBIC debentures at fair value were categorized as follows in the fair value hierarchy for ASC 820 purposes:

          144


           
            
           Fair Value Measurements 
           
            
           (in thousands)
           
          At December 31, 2017
           Fair Value Quoted Prices in
          Active Markets for
          Identical Assets
          (Level 1)
           Significant Other
          Observable Inputs
          (Level 2)
           Significant
          Unobservable
          Inputs
          (Level 3)
           

          LMM portfolio investments

           $948,196 $ $ $948,196 

          Middle Market portfolio investments

            609,256      609,256 

          Private Loan portfolio investments

            467,475      467,475 

          Other Portfolio investments

            104,610      104,610 

          External Investment Manager

            41,768      41,768 

          Total portfolio investments

            2,171,305      2,171,305 

          Marketable securities and idle funds investments

            
            
            
            
           

          Total investments

           $2,171,305 $ $ $2,171,305 

          SBIC debentures at fair value

           $48,608 $ $ $48,608 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Fair Value Measurements

          (in thousands)

              

              

          Quoted Prices in

              

              

          Significant

           

          Active Markets for

           

          Significant Other

           

          Unobservable

           

          Identical Assets

           

          Observable Inputs

           

          Inputs

          At December 31, 2021

          Fair Value

           

          (Level 1)

          (Level 2)

           

          (Level 3)

          LMM portfolio investments

          $

          1,716,415

          $

          $

          $

          1,716,415

          Private Loan portfolio investments

           

          1,141,772

           

           

           

          1,141,772

          Middle Market portfolio investments

           

          395,167

           

           

           

          395,167

          Other Portfolio investments

           

          166,083

           

           

           

          166,083

          External Investment Manager

           

          140,400

           

           

           

          140,400

          Short-term portfolio investments

          1,994

          1,994

          Total investments

          $

          3,561,831

          $

          $

          1,994

          $

          3,559,837

              

          Fair Value Measurements

          (in thousands)

          Quoted Prices in

          Significant

           

          Active Markets for

           

          Significant Other

          Unobservable

           

          Identical Assets

           

          Observable Inputs

           

          Inputs

          At December 31, 2020

          Fair Value

              

          (Level 1)

              

          (Level 2)

              

          (Level 3)

          LMM portfolio investments

          $

          1,285,524

          $

          $

          $

          1,285,524

          Private Loan portfolio investments

           

          740,370

           

           

           

          740,370

          Middle Market portfolio investments

           

          445,609

           

           

           

          445,609

          Other Portfolio investments

           

          96,603

           

           

           

          96,603

          External Investment Manager

           

          116,760

           

           

           

          116,760

          Total investments

          $

          2,684,866

          $

          $

          $

          2,684,866


           
            
           Fair Value Measurements 
           
            
           (in thousands)
           
          At December 31, 2016
           Fair Value Quoted Prices in
          Active Markets for
          Identical Assets
          (Level 1)
           Significant Other
          Observable Inputs
          (Level 2)
           Significant
          Unobservable
          Inputs
          (Level 3)
           

          LMM portfolio investments

           $892,592 $ $2,080 $890,512 

          Middle Market portfolio investments

            630,578      630,578 

          Private Loan portfolio investments

            342,867      342,867 

          Other Portfolio investments

            100,252      100,252 

          External Investment Manager

            30,617      30,617 

          Total portfolio investments

            1,996,906    2,080  1,994,826 

          Marketable securities and idle funds investments

                   

          Total investments

           $1,996,906 $ $2,080 $1,994,826 

          SBIC debentures at fair value

           $74,803 $ $ $74,803 

          Investment Portfolio Composition

          Main Street'sStreet’s principal investment objective is to maximize its portfolio’s total return by generating current income from its debt investments and current income and capital appreciation from its equity and equity-related investments, including warrants, convertible securities and other rights to acquire equity securities in a portfolio company. Main Street seeks to achieve its investment objective through its LMM, portfolioPrivate Loan, and Middle Market investment strategies.

          Main Street’s LMM investment strategy involves investments primarily consist ofin secured debt, equity warrants and direct equity investments in privately held, LMM companies based in the United States. Main Street'sStreet’s LMM portfolio companies generally have annual revenues between $10 million and $150 million, and its LMM investments generally range in size from $5 million to $50$75 million. The LMM debt investments are typically secured by either a first or second priority lien on the assets of the portfolio company, generally bear interest atcan include either fixed rates,or floating rate terms and generally have a term of between five and seven years from the original investment date. In most LMM portfolio investments, Main Street receives nominally priced equity warrants and/or makes direct equity investments in connection with a debt investment.

          Main Street's Middle Market portfolioStreet’s private loan (“Private Loan”) investment strategy involves investments primarily consist of direct investments in or secondary purchases of interest-bearing debt securities in privately held companies based in the United States that are generally larger inconsistent with the size than theof its LMM portfolio companies included in Main Street's LMM portfolio. Main Street'sor Middle Market portfolio companies generally have annual revenues between $150 million and $1.5 billion, and its Middle Market investments generally range in size from $3$10 million to $20$75 million. Main Street'sStreet’s Private Loan investments consist generally of loans that have been originated by Main Street or through strategic relationships with other investment funds on a collaborative basis, and are often referred to in the debt markets as “club deals.” Private Loan investments are typically similar in structure, terms and conditions to investments Main Street holds in its LMM portfolio and Middle Market portfolio. Main Street’s Private Loan portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a term of between three and seven years from the original investment date.

          Main Street's private loan ("Street may have the option to invest alongside the sponsor in the equity securities of its Private Loan")Loan portfolio companies.

          145


          Table of Contents

          Main Street’s Middle Market investment strategy involves investments are primarilyin syndicated loans to or debt securities in privately heldMiddle Market companies, which have been originated through strategic relationshipsMain Street defines as companies with other investment funds on a collaborative basis,annual revenues between $150 million and are often referred to in the debt markets as "club deals." Private Loan investments are typically similar$1.5 billion, and generally range in size structure, terms and conditionsfrom $3 million to investments$25 million. Main Street holds in its LMM portfolio andStreet’s Middle Market portfolio. Main Street's Private Loan portfolio debt investments are generally secured by either a first or second priority lien on the assets of the portfolio company and typically have a terman expected duration of between three and seven years from the original investment date.

          Main Street'sStreet’s other portfolio ("(“Other Portfolio"Portfolio”) investments primarily consist of investments whichthat are not consistent with the typical profiles for its LMM, Private Loan or Middle Market and Private Loan portfolio investments, including investments which may be managed by third parties. In the Other Portfolio, Main Street may incur indirect fees and expenses in connection with investments managed by third parties, such as investments in other investment companies or private funds. For Other Portfolio investments, Main Street generally receives distributions related to the assets held by the portfolio company. Those assets are typically expected to be liquidated over a five to tenten-year period.

          Based upon Main Street’s liquidity and capital structure management activities, Main Street’s Investment Portfolio may also include short-term portfolio investments that are atypical of Main Street’s LMM, Private Loan and Middle Market portfolio investments in that they are intended to be a short-term deployment of capital. Those assets are typically expected to be liquidated in one year period.


          Tableor less. These short-term investments are not expected to be a significant portion of Contentsthe overall Investment Portfolio.


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Main Street'sStreet’s external asset management business is conducted through its External Investment Manager. The External Investment Manager earns management fees based on the assets of the funds under management for external parties and may earn incentive fees, or a carried interest, based on the performance of the fundsassets managed. Main Street entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for its relationship with MSC Income Fund, Inc. (“MSC Income”), formerly known as HMS Income Fund, Inc. ("HMS Income"). Through this agreement, Main Street shares employees with the External Investment Manager, including their related infrastructure, business relationships, management expertise and capital raising capabilities. Main Street allocates the related expenses to the External Investment Manager pursuant to the sharing agreement. Main Street'sStreet’s total expenses for the years ended December 31, 2017, 20162021, 2020 and 20152019 are net of expenses allocated to the External Investment Manager of $6.4$10.3 million, $5.1$7.4 million, and $4.3$6.7 million, respectively.

          Investment income, consisting of interest, dividends and fees, can fluctuate dramatically due to various factors, including the level of new investment activity, repayments of debt investments or sales of equity interests. Investment income in any given year could also be highly concentrated among several portfolio companies. For the years ended December 31, 2017, 20162021 and 2015,2020, Main Street did not record investment income from any single portfolio company in excess of 10% of total investment income.

          The following tables provide a summary of Main Street'sStreet’s investments in the LMM, Private Loan and Middle Market and Private Loan portfolios as of December 31, 20172021 and 20162020 (this information excludes the Other Portfolio, short-term portfolio investments and the External Investment Manager, each of which areis discussed further below):

              

          As of December 31, 2021

          LMM (a)

          Private Loan

          Middle Market

          (dollars in millions)

           

          Number of portfolio companies

          73

           

          75

           

          36

          Fair value

          $

          1,716.4

           

          $

          1,141.8

           

          $

          395.2

          Cost

          $

          1,455.7

           

          $

          1,157.5

           

          $

          440.9

          Debt investments as a % of portfolio (at cost)

          70.9

          %

          95.7

          %

          93.3

          %

          Equity investments as a % of portfolio (at cost)

          29.1

          %

          4.3

          %

          6.7

          %

          % of debt investments at cost secured by first priority lien

          99.0

          %

          98.7

          %

          98.7

          %

          Weighted-average annual effective yield (b)

          11.2

          %

          8.2

          %

          7.5

          %

          Average EBITDA (c)

          $

          6.2

           

          $

          41.3

           

          $

          76.0


          (a)At December 31, 2021, Main Street had equity ownership in all of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 40%.

          146


          Table of Contents

          (b)The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2021, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. The weighted-average yield on Main Street’s debt portfolio as of December 31, 2021 including debt investments on non-accrual status was 10.6% for its LMM portfolio, 8.0% for its Private Loan portfolio and 7.1% for its Middle Market portfolio. The weighted-average annual effective yield is not reflective of what an investor in shares of Main Street’s common stock will realize on its investment because it does not reflect changes in the market value of Main Street’s stock, Main Street’s utilization of leverage, or debt capital, in its capital structure, and Main Street’s expenses or any sales load paid by an investor.
          (c)The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Private Loan and Middle Market portfolios. These calculations exclude certain portfolio companies, including three LMM portfolio companies, three Private Loan portfolio companies and one Middle Market portfolio company, as EBITDA is not a meaningful valuation metric for Main Street’s investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.

              

          As of December 31, 2020

          LMM (a)

          Private Loan

          Middle Market

          (dollars in millions)

           

          Number of portfolio companies

          70

           

          63

           

          42

          Fair value

          $

          1,285.5

           

          $

          740.4

           

          $

          445.6

          Cost

          $

          1,104.6

           

          $

          769.0

           

          $

          488.9

          Debt investments as a % of portfolio (at cost)

          65.8

          %

          93.8

          %

          93.0

          %

          Equity investments as a % of portfolio (at cost)

          34.2

          %

          6.2

          %

          7.0

          %

          % of debt investments at cost secured by first priority lien

          98.1

          %

          95.4

          %

          92.4

          %

          Weighted-average annual effective yield (b)

          11.6

          %

          8.7

          %

          7.9

          %

          Average EBITDA (c)

          $

          5.3

           

          $

          58.1

           

          $

          76.5


          (a)At December 31, 2020, Main Street had equity ownership in approximately 99% of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 38%.
          (b)The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2020, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. The weighted-average yield on Main Street’s debt portfolio as of December 31, 2020 including debt investments on non-accrual status was 10.4% for its LMM portfolio, 8.4% for its Private Loan portfolio and 7.9% for its Middle Market portfolio. The weighted-average annual effective yield is not reflective of what an investor in shares of Main Street’s common stock will realize on its investment because it does not reflect changes in the market value of Main Street’s stock, Main Street’s utilization of leverage, or debt capital, in its capital structure, Main Street’s expenses or any sales load paid by an investor.
          (c)The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Private Loan and Middle Market portfolios. These calculations exclude certain portfolio companies, including three LMM portfolio companies, four Private Loan portfolio companies and one Middle Market portfolio company, as EBITDA is not a meaningful valuation metric for Main Street’s investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.
           
           As of December 31, 2017 
           
           LMM(a) Middle
          Market
           Private
          Loan
           
           
           (dollars in millions)
           

          Number of portfolio companies

            70  62  54 

          Fair value

           $948.2 $609.3 $467.5 

          Cost

           $776.5 $629.7 $489.2 

          % of portfolio at cost — debt

            67.1%  97.3%  93.6% 

          % of portfolio at cost — equity

            32.9%  2.7%  6.4% 

          % of debt investments at cost secured by first priority lien

            98.1%  90.5%  94.5% 

          Weighted-average annual effective yield(b)

            12.0%  9.0%  9.2% 

          Average EBITDA(c)

           $4.4 $78.3 $39.6 

          (a)
          At

          For the years ended December 31, 2017,2021 and 2020, Main Street had equity ownership in approximately 97%achieved a total return on investments of its LMM portfolio companies,16.6% and the average fully diluted equity ownership in those portfolio companies was approximately 39%.

          (b)
          The weighted-average annual effective yields were computed4.1%, respectively. Total return on investments is calculated using the effective interest, rates for all debt investments at costdividend, and fee income, as of December 31, 2017, including amortization of deferred debt origination feeswell as the realized and accretion of original issue discount but excluding fees payable upon repaymentunrealized change in fair value of the debt instruments and any debtInvestment Portfolio for the specified period. Main Street’s total return on investments on non-accrual status. The weighted-average annual effective yield is higher thannot reflective of what an investor in shares of Main Street'sStreet’s common stock will realize on its investment because it does not reflect changes in the market value of Main Street'sStreet’s stock, Main Street’s utilization of leverage, or debt capital, in its capital structure, Main Street’s expenses or any sales load paid by an investor.

          (c)
          The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including six LMM portfolio companies, one Middle Market portfolio company and three Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street's


          147


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

            investments in these portfolio companies, and those portfolio companies whose primary purpose is to own real estate.

           
           As of December 31, 2016 
           
           LMM(a) Middle
          Market
           Private
          Loan
           
           
           (dollars in millions)
           

          Number of portfolio companies

            73  78  46 

          Fair value

           $892.6 $630.6 $342.9 

          Cost

           $760.3 $646.8 $357.7 

          % of portfolio at cost — debt

            69.1%  97.2%  93.5% 

          % of portfolio at cost — equity

            30.9%  2.8%  6.5% 

          % of debt investments at cost secured by first priority lien

            92.1%  89.1%  89.0% 

          Weighted-average annual effective yield(b)

            12.5%  8.5%  9.6% 

          Average EBITDA(c)

           $5.9 $98.6 $22.7 

          (a)
          At December 31, 2016, Main Street had equity ownership in approximately 99% of its LMM portfolio companies, and the average fully diluted equity ownership in those portfolio companies was approximately 36%.

          (b)
          The weighted-average annual effective yields were computed using the effective interest rates for all debt investments at cost as of December 31, 2016, including amortization of deferred debt origination fees and accretion of original issue discount but excluding fees payable upon repayment of the debt instruments and any debt investments on non-accrual status. The weighted-average annual effective yield is higher than what an investor in shares of Main Street's common stock will realize on its investment because it does not reflect Main Street's expenses or any sales load paid by an investor.

          (c)
          The average EBITDA is calculated using a simple average for the LMM portfolio and a weighted-average for the Middle Market and Private Loan portfolios. These calculations exclude certain portfolio companies, including five LMM portfolio companies, one Middle Market portfolio company and three Private Loan portfolio companies, as EBITDA is not a meaningful valuation metric for Main Street's investments in these portfolio companies.

          As of December 31, 2017,2021, Main Street had Other Portfolio investments in eleventhirteen companies, collectively totaling approximately $104.6$166.1 million in fair value and approximately $109.4$173.7 million in cost basis and which comprised approximately 4.8%4.7% and 5.3% of Main Street'sStreet’s Investment Portfolio at fair value.value and cost, respectively. As of December 31, 2016,2020, Main Street had Other Portfolio investments in tentwelve companies, collectively totaling approximately $100.3$96.6 million in fair value and approximately $107.1$124.7 million in cost basis and which comprised approximately 3.6% and 5.0% of Main Street'sStreet’s Investment Portfolio at fair value.value and cost, respectively.

          As of December 31, 2021, Main Street had one short-term portfolio investment, which was a secured debt investment that had approximately $2.0 million in both fair value and in cost basis and which comprised approximately 0.1% of Main Street’s Investment Portfolio at both fair value and cost. As of December 31, 2020, Main Street held no short-term portfolio investments.

          As discussed further in Note A.1., Main Street holds an investment in the External Investment Manager, a wholly owned subsidiary that is treated as a portfolio investment. As of December 31, 2017, there was no cost basis in2021, this investment and the investment had a fair value of approximately $41.8$140.4 million and a cost basis of $29.5 million, which comprised approximately 1.9%3.9% and 0.9% of Main Street'sStreet’s Investment Portfolio at fair value.value and cost, respectively. As of December 31, 2016, there was no cost basis in2020, this investment and the investment had a fair value of approximately $30.6$116.8 million and a cost basis of $29.5 million, which comprised approximately 1.5%4.3% and 1.2% of Main Street'sStreet’s Investment Portfolio at fair value.value and cost, respectively.

          The following tables summarize the composition of Main Street'sStreet’s total combined LMM portfolio investments, Middle MarketPrivate Loan portfolio investments and Private LoanMiddle Market portfolio investments at cost and fair value by type of investment as a percentage of the total combined LMM portfolio investments, Middle


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          MarketPrivate Loan portfolio investments and Private LoanMiddle Market portfolio investments, as of December 31, 20172021 and 20162020 (this information excludes the Other Portfolio, short-term portfolio investments and the External Investment Manager)Manager, each of which is discussed above).

          Cost:
           December 31,
          2017
           December 31,
          2016
           

           

          December 31, 2021

           

          December 31, 2020

          First lien debt

           79.0% 76.1% 

           

          82.5

          %  

          77.0

          %

          Equity

           15.3% 14.5% 

           

          16.2

          %  

          19.0

          %

          Second lien debt

           4.5% 7.7% 

           

          0.6

          %  

          2.7

          %

          Equity warrants

           0.7% 1.1% 

           

          0.3

          %  

          0.5

          %

          Other

           0.5% 0.6% 

           

          0.4

          %  

          0.8

          %

           

          100.0

          %  

          100.0

          %

           100.0% 100.0% 


          Fair Value:
           December 31,
          2017
           December 31,
          2016
           

           

          December 31, 2021

           

          December 31, 2020

           

          First lien debt

           70.5% 68.7% 

           

          74.3

          %  

          70.0

          %

           

          Equity

           24.4% 22.6% 

           

          24.6

          %  

          26.4

          %

           

          Second lien debt

           4.1% 7.2% 

           

          0.5

          %  

          2.4

          %

           

          Equity warrants

           0.6% 0.9% 

           

          0.2

          %  

          0.4

          %

           

          Other

           0.4% 0.6% 

           

          0.4

          %  

          0.8

          %

           

           

          100.0

          %  

          100.0

          %

           

           100.0% 100.0% 

          The following tables summarize the composition of Main Street'sStreet’s total combined LMM portfolio investments, Middle MarketPrivate Loan portfolio investments and Private LoanMiddle Market portfolio investments by geographic region of the United States and other countries at cost and fair value as a percentage of the total combined LMM portfolio investments, Middle MarketPrivate Loan portfolio investments and Private LoanMiddle Market portfolio investments, as of December 31, 20172021 and 20162020 (this information

          148


          Table of Contents

          excludes the Other Portfolio, short-term portfolio investments and the External Investment Manager). The geographic composition is determined by the location of the corporate headquarters of the portfolio company.

          Cost:

           

          December 31, 2021

           

          December 31, 2020

           

          West

           

          28.3

          %  

          21.0

          %

           

          Northeast

           

          22.6

          %  

          22.6

          %

           

          Southwest

           

          21.6

          %  

          24.3

          %

           

          Midwest

           

          15.1

          %  

          18.2

          %

           

          Southeast

           

          11.6

          %  

          12.8

          %

           

          Canada

           

          0.8

          %  

          1.1

          %

           

           

          100.0

          %  

          100.0

          %

           

          Fair Value:

           

          December 31, 2021

           

          December 31, 2020

           

          West

           

          28.5

          %  

          21.4

          %

           

          Southwest

           

          23.0

          %  

          24.7

          %

           

          Northeast

           

          21.9

          %  

          21.7

          %

           

          Midwest

           

          15.8

          %  

          19.7

          %

           

          Southeast

           

          10.0

          %  

          11.5

          %

           

          Canada

           

          0.8

          %  

          1.0

          %

           

           

          100.0

          %  

          100.0

          %

           

          Cost:
           December 31,
          2017
           December 31,
          2016
           

          Southwest

            26.1%  29.7% 

          Midwest

            22.3%  23.0% 

          West

            20.7%  16.1% 

          Northeast

            15.2%  14.8% 

          Southeast

            12.8%  13.1% 

          Canada

            1.9%  1.7% 

          Other Non-United States

            1.0%  1.6% 

            100.0%  100.0% 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)


          Fair Value:
           December 31,
          2017
           December 31,
          2016
           

          Southwest

            26.8%  31.0% 

          West

            23.7%  18.3% 

          Midwest

            20.3%  21.2% 

          Northeast

            14.6%  13.9% 

          Southeast

            11.9%  12.7% 

          Canada

            1.8%  1.4% 

          Other Non-United States

            0.9%  1.5% 

            100.0%  100.0% 

          Main Street'sStreet’s LMM portfolio investments, Middle MarketPrivate Loan portfolio investments and Private LoanMiddle Market portfolio investments are in companies conducting business in a variety of industries. The following tables summarize the composition of Main Street'sStreet’s total combined LMM portfolio investments, Middle MarketPrivate Loan portfolio investments and Private Loan

          149


          Table of Contents

          Middle Market portfolio investments by industry at cost and fair value as of


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          December 31, 20172021 and 20162020 (this information excludes the Other Portfolio, short-term portfolio investments and the External Investment Manager).

          Cost:

          December 31, 2021

          December 31, 2020

          Construction & Engineering

           

          7.8

          %  

          6.0

          %

          Machinery

           

          7.3

          %  

          6.4

          %

          Internet Software & Services

           

          7.2

          %  

          5.2

          %

          Commercial Services & Supplies

           

          5.9

          %  

          4.7

          %

          Distributors

           

          4.7

          %  

          2.1

          %

          Professional Services

           

          4.6

          %  

          5.1

          %

          Leisure Equipment & Products

           

          4.1

          %  

          4.2

          %

          Energy Equipment & Services

           

          4.0

          %  

          4.5

          %

          Health Care Providers & Services

           

          3.9

          %  

          5.1

          %

          Specialty Retail

           

          3.5

          %  

          3.1

          %

          IT Services

           

          3.5

          %  

          4.0

          %

          Diversified Consumer Services

           

          3.4

          %  

          1.0

          %

          Diversified Telecommunication Services

           

          2.6

          %  

          2.6

          %

          Communications Equipment

           

          2.3

          %  

          3.3

          %

          Containers & Packaging

           

          2.3

          %  

          1.6

          %

          Building Products

           

          2.3

          %  

          1.4

          %

          Textiles, Apparel & Luxury Goods

           

          2.2

          %  

          0.6

          %

          Tobacco

           

          2.1

          %  

          2.2

          %

          Diversified Financial Services

           

          2.1

          %  

          2.1

          %

          Food Products

           

          2.0

          %  

          2.6

          %

          Aerospace & Defense

           

          1.9

          %  

          5.9

          %

          Software

           

          1.8

          %  

          4.4

          %

          Oil, Gas & Consumable Fuels

           

          1.8

          %  

          3.2

          %

          Media

           

          1.8

          %  

          2.1

          %

          Chemicals

           

          1.7

          %  

          0.9

          %

          Internet & Catalog Retail

           

          1.6

          %  

          0.7

          %

          Hotels, Restaurants & Leisure

           

          1.4

          %  

          2.6

          %

          Electronic Equipment, Instruments & Components

           

          1.4

          %  

          1.9

          %

          Life Sciences Tools & Services

           

          1.4

          %  

          1.4

          %

          Computers & Peripherals

           

          1.3

          %  

          1.5

          %

          Household Durables

          1.0

          %  

          1.3

          %

          Trading Companies & Distributors

          0.9

          %  

          1.2

          %

          Food & Staples Retailing

          0.8

          %  

          1.0

          %

          Transportation Infrastructure

          %  

          1.0

          %

          Other (1)

          3.4

          %  

          3.1

          %

           

          100.0

          %  

          100.0

          %


          (1)Includes various industries with each industry individually less than 1.0% of the total combined LMM portfolio investments, Private Loan portfolio investments and Middle Market portfolio investments at each date.

          Cost:
           December 31,
          2017
           December 31,
          2016
           

          Energy Equipment & Services

            6.9%  7.5% 

          Construction & Engineering

            6.4%  5.3% 

          Hotels, Restaurants & Leisure

            6.2%  6.5% 

          Specialty Retail

            5.3%  4.4% 

          Machinery

            5.2%  5.6% 

          Commercial Services & Supplies

            4.5%  5.0% 

          Media

            4.4%  5.7% 

          Diversified Telecommunication Services

            4.1%  3.3% 

          IT Services

            3.9%  3.9% 

          Professional Services

            3.7%  1.4% 

          Electronic Equipment, Instruments & Components

            3.4%  4.5% 

          Internet Software & Services

            3.4%  3.6% 

          Aerospace & Defense

            3.3%  0.9% 

          Leisure Equipment & Products

            3.0%  0.9% 

          Health Care Providers & Services

            2.9%  3.0% 

          Computers & Peripherals

            2.8%  2.2% 

          Software

            2.5%  2.6% 

          Communications Equipment

            2.3%  2.3% 

          Health Care Equipment & Supplies

            2.0%  2.3% 

          Distributors

            1.9%  1.1% 

          Food Products

            1.9%  2.6% 

          Building Products

            1.9%  2.1% 

          Auto Components

            1.9%  3.0% 

          Construction Materials

            1.7%  0.7% 

          Diversified Consumer Services

            1.6%  2.8% 

          Diversified Financial Services

            1.6%  2.3% 

          Oil, Gas & Consumable Fuels

            1.6%  1.2% 

          Internet & Catalog Retail

            1.3%  0.7% 

          Road & Rail

            1.0%  1.5% 

          Real Estate Management & Development

            1.0%  0.7% 

          Air Freight & Logistics

            0.9%  1.0% 

          Consumer Finance

            0.7%  1.5% 

          Other(1)

            4.8%  7.9% 

            100.0%  100.0% 

          150


          (1)
          Includes various industries with each industry individually less than 1.0% of the total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments at each date.

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Fair Value:
           December 31,
          2017
           December 31,
          2016
           

          December 31, 2021

          December 31, 2020

          Machinery

           6.4% 6.7% 

           

          8.5

          %  

          8.1

          %

          Construction & Engineering

           6.3% 5.6% 

           

          7.7

          %  

          6.1

          %

          Internet Software & Services

           

          6.4

          %  

          4.5

          %

          Diversified Consumer Services

           

          5.9

          %  

          3.0

          %

          Commercial Services & Supplies

           

          5.5

          %  

          4.5

          %

          Distributors

           

          4.7

          %  

          2.1

          %

          Specialty Retail

           

          4.1

          %  

          3.4

          %

          Leisure Equipment & Products

           

          4.0

          %  

          4.0

          %

          Professional Services

           

          3.9

          %  

          4.0

          %

          Health Care Providers & Services

           

          3.6

          %  

          5.2

          %

          IT Services

           

          3.3

          %  

          3.8

          %

          Energy Equipment & Services

           6.2% 5.8% 

           

          2.8

          %  

          3.0

          %

          Diversified Telecommunication Services

           

          2.5

          %  

          2.0

          %

          Containers & Packaging

           

          2.5

          %  

          1.7

          %

          Diversified Financial Services

           

          2.3

          %  

          2.3

          %

          Computers & Peripherals

           

          2.2

          %  

          2.9

          %

          Tobacco

           

          2.2

          %  

          2.1

          %

          Building Products

           

          2.2

          %  

          1.4

          %

          Media

           

          2.2

          %  

          2.5

          %

          Textiles, Apparel & Luxury Goods

           

          2.1

          %  

          0.5

          %

          Software

           

          2.0

          %  

          4.6

          %

          Food Products

           

          1.9

          %  

          2.2

          %

          Aerospace & Defense

           

          1.7

          %  

          5.7

          %

          Chemicals

           

          1.6

          %  

          0.9

          %

          Communications Equipment

           

          1.5

          %  

          2.7

          %

          Internet & Catalog Retail

           

          1.5

          %  

          0.6

          %

          Oil, Gas & Consumable Fuels

           

          1.4

          %  

          2.7

          %

          Life Sciences Tools & Services

           

          1.3

          %  

          1.4

          %

          Construction Materials

           

          1.1

          %  

          1.4

          %

          Hotels, Restaurants & Leisure

           5.9% 6.5% 

          1.0

          %  

          2.0

          %  

          Diversified Consumer Services

           5.9% 5.5% 

          Specialty Retail

           5.3% 4.6% 

          Commercial Services & Supplies

           4.1% 5.0% 

          IT Services

           4.0% 3.7% 

          Media

           3.8% 5.2% 

          Professional Services

           3.5% 1.3% 

          Diversified Telecommunication Services

           3.4% 2.5% 

          Internet Software & Services

           3.2% 3.5% 

          Aerospace & Defense

           3.1% 0.8% 

          Computers & Peripherals

           3.0% 2.3% 

          Leisure Equipment & Products

           2.9% 0.9% 

          Household Durables

          0.9

          %  

          1.3

          %  

          Trading Companies & Distributors

          0.9

          %  

          1.2

          %  

          Electronic Equipment, Instruments & Components

           2.8% 3.9% 

          0.7

          %  

          1.3

          %  

          Health Care Providers & Services

           2.8% 2.9% 

          Software

           2.5% 2.6% 

          Communications Equipment

           2.2% 2.3% 

          Health Care Equipment & Supplies

           2.1% 2.4% 

          Construction Materials

           1.9% 1.0% 

          Distributors

           1.8% 1.1% 

          Food Products

           1.8% 2.4% 

          Building Products

           1.8% 1.9% 

          Diversified Financial Services

           1.6% 2.3% 

          Auto Components

           1.6% 2.9% 

          Oil, Gas & Consumable Fuels

           1.5% 1.1% 

          Real Estate Management & Development

           1.1% 0.7% 

          Internet & Catalog Retail

           1.1% 0.6% 

          Air Freight & Logistics

           1.0% 1.1% 

          Road & Rail

           1.0% 2.5% 

          Consumer Finance

           0.6% 1.3% 

          Other(1)

           3.8% 7.1% 

          Transportation Infrastructure

          %  

          1.0

          %  

          Other (1)

          3.9

          %  

          3.9

          %  

          100.0

          %  

          100.0

          %  

           100.0% 100.0% 

          (1)Includes various industries with each industry individually less than 1.0% of the total combined LMM portfolio investments, Private Loan portfolio investments and Middle Market portfolio investments at each date.
          (1)
          Includes various industries with each industry individually less than 1.0% of the total combined LMM portfolio investments, Middle Market portfolio investments and Private Loan portfolio investments at each date.

          At December 31, 20172021 and 2016,2020, Main Street had no portfolio investment that was greater than 10% of the Investment Portfolio at fair value.


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          Unconsolidated Significant Subsidiaries

          In accordance with Rules 3-09 and 4-08(g) of Regulation S-X, Main Street must determine which of its unconsolidated controlled portfolio companies, if any, are considered "significant“significant subsidiaries."” On May 20, 2020, the SEC published in Release No. 33-10786, Amendments to Financial Disclosures about Acquired and Disposed Businesses, amendments to Rule 1-02(w)(2) of Regulation S-X used in the determination of a significant subsidiary specific to investment companies, including BDCs. The amendments became effective on January 1, 2021, but the SEC allowed for early application. Main Street elected to apply these revisions effective June 30, 2020. In evaluating theseits unconsolidated controlled portfolio companies in accordance with Regulation S-X, there are threetwo tests utilizedthat Main Street

          151


          must utilize to determine if any of Main Street'sStreet’s Control Investments (as defined in Note A, including those unconsolidated portfolio companies defined as Control Investments in which Main Street does not own greater than 50% of the voting securities)securities or maintain greater than 50% of the board representation) are considered significant subsidiaries: the investment test the asset test and the income test. RuleThe investment test is generally measured by dividing Main Street’s investment in the Control Investment by the value of Main Street’s total investments. The income test is generally measured by dividing the absolute value of the combined sum of total investment income, net realized gain (loss) and net unrealized appreciation (depreciation) from the relevant Control Investment for the period being tested by the absolute value of Main Street’s change in net assets resulting from operations for the same period. Rules 3-09 and 4-08(g) of Regulation S-X as interpreted by the SEC, requiresrequire Main Street to include (1) separate audited financial statements of an unconsolidated majority-owned subsidiary (Control Investments in which Main Street owns greater than 50% of the voting securities) in an annual report if any of the three tests exceed 20% of Main Street's total investments at fair value, total assets or total income, respectively. Rule 4-08(g) of Regulation S-X requiresand (2) summarized financial information of a Control Investment in an annual report if any of the three tests exceeds 10% of Main Street's annual total amounts and Rule 10-01(b)(1) of Regulation S-X requires summarized financial information in a quarterly report, respectively, if anycertain thresholds of the threeinvestment or income tests exceeds 20% of Main Street's year-to-date total amounts.are exceeded and the unconsolidated portfolio company qualifies as a significant subsidiary.

          As of December 31, 20172021, 2020 and 2016,2019, Main Street had no single investment that represented greater than 10% of its total Investment Portfolio at fair value and no single investment whose total assets represented greater than 10% of its total assets. After performing the income test for the years ended December 31, 2017 and 2016, Main Street determined that its income from one of its Control Investments individually generated more than 10% of its total income, primarily due to the unrealized appreciation that was recognized on the investment. As such, CBT Nuggets, LLC, an unconsolidated portfolio company that was a Control Investment, but for which Main Street was not the majority owner and did not have rights to maintain greater than 50% of the board representation, was consideredqualified as a significant subsidiary atunder either the 10% level as of December 31, 2017 and 2016. Additionally, after performing theinvestment or income test for the year ended December 31, 2015, excluding investments which were fully exited after December 31, 2015, CBT Nuggets, LLC and the wholly owned External Investment Manager were each considered significant subsidiaries at the 10% income level (see further discussion and summarized financial information of the External Investment Manager in Note D).tests.

                 The following table shows the summarized financial information for CBT Nuggets, LLC:

           
           As of December 31, 
           
           2017 2016 
           
           (dollars in thousands)
           

          Balance Sheet Data

                 

          Current Assets

           $14,585 $7,288 

          Noncurrent Assets

            11,769  13,609 

          Current Liabilities

            17,570  17,871 

          Noncurrent Liabilities

               


           
           Twelve Months Ended
          December 31,
           
           
           2017 2016 2015 
           
           (dollars in thousands)
           

          Summary of Operations

                    

          Total Revenue

           $40,802 $38,779 $33,924 

          Gross Profit

            35,837  33,661  29,352 

          Income from Operations

            9,018  13,117  12,099 

          Net Income

            18,379  12,819  12,343 

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          NOTE D — D—EXTERNAL INVESTMENT MANAGER

          As discussed further in Note A.1.,A.1 and Note C, the External Investment Manager provides investment management and other services to External Parties. The External Investment Manager is accounted for as a portfolio investment of MSCC since the External Investment Manager conducts all of its investment management activities for External Parties.

          During May 2012, Main Street entered into an investment sub-advisory agreement with HMS Adviser, LP ("(“HMS Adviser"Adviser”), which iswas the investment advisoradviser to HMSMSC Income a non-listed BDC,at the time, to provide certain investment advisory services to HMS Adviser. In December 2013, after obtaining required no-action relief from the SEC to allow it to own a registered investment adviser, Main Street assigned the sub-advisory agreement to the External Investment Manager since the fees received from such arrangement could otherwise have negative consequences on MSCC'sMSCC’s ability to meet the source-of-income requirement necessary for it to maintain its RIC tax treatment. Under the investment sub-advisory agreement, the External Investment Manager iswas entitled to 50% of the annual base management fee and the incentive fees earned by HMS Adviser under its advisory agreement with MSC Income. Effective October 30, 2020, the External Investment Manager and HMS Income.Adviser consummated the transactions contemplated by that certain asset purchase agreement by and among the External Investment Manager, HMS Adviser and the other parties thereto whereby the External Investment Manager became the sole investment adviser and administrator to MSC Income pursuant to an Investment Advisory and Administrative Services Agreement entered into between the External Investment Manager and MSC Income (the “Advisory Agreement”). The Advisory Agreement includes a 1.75% annual management fee, reduced from 2.00%, and the same incentive fee as under MSC Income’s prior advisory agreement with HMS Adviser, with the External Investment Manager receiving 100% of such fee income (increased from 50% previously).

          As described more fully in Note L – Related Party Transactions, the External Investment Manager launched a new private fund, MS Private Loan Fund I, LP, a private investment fund with a strategy to co-invest with Main Street in Private Loan portfolio investments (the “Private Loan Fund”), in December 2020. The External Investment Manager has conditionally agreedentered into an Investment Management Agreement in December 2020 with the Private Loan Fund, pursuant to waive a limited amount ofwhich the External Investment Manager provides investment advisory and management services to the Private Loan Fund in exchange for an asset-based fee and certain incentive fees otherwise earned. fees. The External Investment Manager may also advise other clients, including funds and separately managed accounts, pursuant to advisory and services agreements with such clients in exchange for asset-based and incentive fees.

          During the yearsyear ended December 31, 2017, 2016 and 2015,2021, the External Investment Manager earned $10.9$17.7 million $9.5in base management fee income and $0.6 million and $7.8in incentive fees compared to $10.7 million respectively, of base management fees (netand no incentive fees in 2020 and $11.1 million of base management fees waived, if any) underand $2.0 million in incentive fees in 2019 for the sub-advisory agreement with HMS Adviser.

                 The investment in the External Investment Manager is accounted for using fair value accounting, with the fair value determined by Main Streetadvisory services provided to MSC Income, other funds and approved, in good faith, by Main Street's Boardother clients.

          152


          Main Street determines the fair value of the External Investment Manager using the Waterfall valuation method under the market approach (see further discussion in Note B.1.). Any change in fair value of the investment in the External Investment Manager is recognized on Main Street'sStreet’s consolidated statements of operations in "Net Change in“Net Unrealized Appreciation (Depreciation)— PortfolioControl investments."

          The External Investment Manager is an indirect wholly owned subsidiary of MSCC owned through a Taxable Subsidiary and is a disregarded entity for tax purposes. The External Investment Manager has entered into a tax sharing agreement with its Taxable Subsidiary owner. Since the External Investment Manager is accounted for as a portfolio investment of MSCC and is not included as a consolidated subsidiary of MSCC in MSCC'sMSCC’s consolidated financial statements, and as a result of the tax sharing agreement with its Taxable Subsidiary owner, for financial reporting purposes the External Investment Manager is treated as if it is taxed at normal corporate tax rates based on its taxable income and, as a result of its activities, may generate income tax expense or benefit. Main Street owns the External Investment Manager through the Taxable Subsidiary to allow MSCC to continue to comply with the "source-of-income"“source-of-income” requirements contained in the RIC tax provisions of the Code. The taxable income, or loss, of the External Investment Manager may differ from its book income, or loss, due to temporary book and tax timing differences and permanent differences. As a result of the above described financial reporting and tax treatment, the External Investment Manager provides for any income tax expense, or benefit, and any tax assets or liabilities in its separate financial statements.

          Main Street shares employees with the External Investment Manager and allocates costs related to such shared employees to the External Investment Manager generally based on a combination of the direct time spent, new investment origination activity and assets under management, depending on the nature of the expense. For the years ended December 31, 2017, 20162021, 2020 and 2015,2019, Main Street allocated $6.4$10.3 million, $5.1$7.4 million and $4.3$6.7 million of total expenses, respectively, to the External Investment Manager. The total contribution of the External Investment Manager to Main Street'sStreet’s net investment income consists of the combination of the expenses allocated to the External Investment Manager and the dividend income receivedearned from the External Investment Manager. For the years ended December 31, 2017, 20162021, 2020, and 2015,2019 the total


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          contribution to Main Street'sStreet’s net investment income was $9.4$16.5 million, $7.9$9.9 million and $6.5$11.7 million, respectively.

          Summarized financial information from the separate financial statements of the External Investment Manager as of December 31, 20172021 and 20162020 and for the years ended December 31, 2017, 20162021, 2020 and 20152019 is as follows:

          As of 

          As of 

          December 31, 

          December 31, 

              

          2021

              

          2020

          (dollars in thousands)

          Cash

          $

          $

          Accounts receivable—advisory clients

           

          5,595

           

          3,520

          Intangible Asset

          29,500

          29,500

          Total assets

          $

          35,095

          $

          33,020

          Accounts payable to MSCC and its subsidiaries

          $

          3,288

          $

          2,423

          Dividend payable to MSCC and its subsidiaries

           

          2,307

           

          1,097

          Equity

           

          29,500

           

          29,500

          Total liabilities and equity

          $

          35,095

          $

          33,020

          153


          Twelve Months Ended 

          December 31, 

              

          2021

              

          2020

              

          2019

          (dollars in thousands)

          Management fee income

          $

          17,665

          $

          10,665

          $

          11,116

          Incentive fees

           

          622

           

           

          1,972

          Total revenues

           

          18,287

           

          10,665

           

          13,088

          Expenses allocated from MSCC or its subsidiaries:

           

           

          Salaries, share‑based compensation and other personnel costs

          (8,417)

          (4,984)

          (4,388)

          Other G&A expenses

          (1,860)

          (2,445)

          (2,284)

          Total allocated expenses

           

          (10,277)

           

          (7,429)

           

          (6,672)

          Pre‑tax income

           

          8,010

           

          3,236

           

          6,416

          Tax expense

           

          (1,795)

           

          (745)

           

          (1,427)

          Net income

          $

          6,215

          $

          2,491

          $

          4,989

          NOTE E—DEBT

          Summary of debt as of December 31, 2021 is as follows:

              

          Outstanding Balance

              

          Unamortized Debt Issuance (Costs)/Premiums

              

          Recorded Value

              

          Estimated Fair Value (1)

          (in thousands)

          SBIC Debentures

          $

          350,000

          $

          (7,269)

          $

          342,731

          $

          328,206

          Credit Facility

          320,000

          320,000

          320,000

          4.50% Notes due 2022

          185,000

          (556)

          184,444

          190,043

          5.20% Notes due 2024

          450,000

          1,272

          451,272

          480,767

          3.00% Notes due 2026

          500,000

          (2,391)

          497,609

          502,285

          Total Debt

          $

          1,805,000

          $

          (8,944)

          $

          1,796,056

          $

          1,821,301


          (1)Estimated fair value for outstanding debt if Main Street had adopted the fair value option under ASC 825. See discussion of the methods used to estimate the fair value of Main Street’s debt in Note B.11. – Fair Value of Financial Instruments.

          Summary of debt as of December 31, 2020 is as follows:

              

          Outstanding Balance

              

          Unamortized Debt Issuance (Costs)/Premiums

              

          Recorded Value

              

          Estimated Fair Value (1)

          (in thousands)

          SBIC Debentures

          $

          309,800

          $

          (5,828)

          $

          303,972

          $

          309,907

          Credit Facility

          269,000

          269,000

          269,000

          4.50% Notes due 2022

          185,000

          (1,164)

          183,836

          194,938

          5.20% Notes due 2024

          450,000

          1,817

          451,817

          488,102

          Total Debt

          $

          1,213,800

          $

          (5,175)

          $

          1,208,625

          $

          1,261,947


          (1)Estimated fair value for outstanding debt if Main Street had adopted the fair value option under ASC 825. See discussion of the methods used to estimate the fair value of Main Street’s debt in Note B.11. – Fair Value of Financial Instruments.
           
           As of
          December 31,
           
           
           2017 2016 
           
           (dollars in thousands)
           

          Cash

           $ $ 

          Accounts receivable — HMS Income

            2,863  2,496 

          Total assets

           $2,863 $2,496 

          Accounts payable to MSCC and its subsidiaries

           $1,963 $1,635 

          Dividend payable to MSCC and its subsidiaries

            900  719 

          Taxes payable

              142 

          Equity

               

          Total liabilities and equity

           $2,863 $2,496 

          154


          Summarized interest expense for the years ended December 31, 2021, 2020 and 2019 is as follows (in thousands):

          Twelve Months Ended December 31, 

          2021

          2020

          2019

          SBIC Debentures

          $

          10,857

          $

          11,867

          $

          12,739

          Credit Facility

          5,204

          9,232

          10,974

          4.50% Notes due 2019

          7,881

          4.50% Notes due 2022

          8,932

          8,932

          8,932

          5.20% Notes due 2024

          22,855

          19,556

          9,732

          3.00% Notes due in 2026

          10,988

          Total Interest Expense

          $

          58,836

          $

          49,587

          $

          50,258


           
           Twelve Months Ended December, 
           
           2017 2016 2015 
           
           (dollars in thousands)
           

          Management fee income

           $10,946 $9,540 $7,767 

          Expenses allocated from MSCC or its subsidiaries:

                    

          Salaries, share-based compensation and other personnel costs

            (3,989) (3,470) (3,005)

          Other G&A expenses

            (2,381) (1,619) (1,330)

          Total allocated expenses

            (6,370) (5,089) (4,335)

          Pre-tax income

            4,576  4,451  3,432 

          Tax expense

            (1,544) (1,623) (1,235)

          Net income

           $3,032 $2,828 $2,197 

          NOTE E — SBIC DEBENTURESDebentures

                 Due to each of the Funds' status as a licensedUnder existing SBIC Main Street hasregulations, SBA-approved SBICs under common control have the ability to issue through the Funds, debentures guaranteed by the SBA up to a regulatory maximum amount of $350.0 million through its three existing SBIC licenses.million. Main Street’s SBIC debentures payable, under existing SBA-approved commitments, were $295.8$350.0 million and $240.0$309.8 million at December 31, 20172021 and 2016,2020, respectively. SBIC debentures provide for interest to be paid semiannually, with principal due at the applicable 10-year maturity date of each debenture. During the year ended December 31, 2017,2021, Main Street issued $81.0$80.2 million of SBIC debentures and opportunistically prepaid $25.2$40.0 million of existing SBIC debentures that were scheduled to mature over the next year as part of an effort to manage the maturity dates of the oldest SBIC debentures, leaving $54.2 million of additional capacity under Main Street's SBIC licenses. As a result of this prepayment, Main Street recognized a realized loss of $5.2 million due to the previously recognized gain recorded as a result of recording the MSC II debentures at fair value on the date of the acquisition of the majority interests of MSC II. The effect of the realized loss is offset by the reversal of all previously recognized unrealized depreciation due to fair value adjustments since the date of the acquisition.debentures. Main Street expects to issue newmaintain SBIC debentures under the SBIC program in the future, subject to periodic repayments and borrowings, in an amount up to the regulatory maximum amount


          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          of $350.0 million for affiliated SBIC funds. The weighted-average annual interest rate on the SBIC debentures was 3.6%2.9% and 4.1%3.4% as of December 31, 20172021 and 2016,2020, respectively. The first principal maturity due under the existing SBIC debentures is in 2019,2023, and the weighted-average remaining duration as of December 31, 20172021 was approximately 5.86.1 years. For the years ended December 31, 2017, 2016 and 2015, Main Street recognized interest expense attributable to the SBIC debentures of $10.5 million, $10.0 million and $9.9 million, respectively. Main Street has incurred upfront leverage and other miscellaneous fees of approximately 3.4% of the debenture principal amount. In accordance with SBASBIC regulations, the Funds are precluded from incurring additional non-SBIC debt without the prior approval of the SBA.

          As of December 31, 2017, the recorded value of2021, the SBIC debentures was $288.5 million which consisted of (i) $48.6 million recorded at fair value, or $1.4 million less than the $50.0 million par value of the SBIC debentures issued in MSC II, (ii) $149.8$175.0 million par value of SBIC debentures outstanding held inissued by MSMF, with a recorded value of $147.5 million that was net of unamortized debt issuance costs of $2.3 million and (iii) $96.0 million par value of SBIC debentures held in MSC III with a recorded value of $92.4$171.4 million that was net of unamortized debt issuance costs of $3.6 million. Asmillion and (ii) $175.0 million par value of December 31, 2017, if Main Street had adopted the fair value option under ASC 825 for all of its SBIC debentures Main Street estimates the fairissued by MSC III with a recorded value of its SBIC debentures would be approximately $266.3$171.3 million or $29.5 million less than the $295.8 million face valuethat was net of the SBIC debentures.unamortized debt issuance costs of $3.7 million.

          155


          The maturity dates and fixed interest rates for Main Street'sStreet’s SBIC Debentures as of December 31, 20172021 and 20162020 are summarized in the following table:

          Maturity Date
           Fixed
          Interest
          Rate
           December 31,
          2017
           December 31,
          2016
           

          9/1/2017

            6.43%   15,000,000 

          3/1/2018

            6.38%   10,200,000 

          9/1/2019

            4.95% 20,000,000  20,000,000 

          3/1/2020

            4.51% 10,000,000  10,000,000 

          9/1/2020

            3.50% 35,000,000  35,000,000 

          9/1/2020

            3.93% 10,000,000  10,000,000 

          3/1/2021

            4.37% 10,000,000  10,000,000 

          3/1/2021

            4.60% 20,000,000  20,000,000 

          9/1/2021

            3.39% 10,000,000  10,000,000 

          9/1/2022

            2.53% 5,000,000  5,000,000 

          3/1/2023

            3.16% 16,000,000  16,000,000 

          3/1/2024

            3.95% 8,000,000  8,000,000 

          3/1/2024

            3.95% 12,000,000  12,000,000 

          3/1/2024

            3.95% 11,400,000  11,400,000 

          3/1/2024

            3.95% 7,600,000  7,600,000 

          3/1/2024

            3.55% 24,800,000  24,800,000 

          3/1/2027

            3.52% 40,400,000  15,000,000 

          9/1/2027

            3.19% 34,600,000   

          3/1/2028(1)

            2.02% 21,000,000   

          Ending Balance

               295,800,000  240,000,000 

          (1)
          The interest rate for this tranche of SBIC debentures represents an initial rate that has not been fixed by the SBA as of December 31, 2017. In March 2018, the rate for this tranche of SBIC debentures will be determined and, thereafter, the rate will be fixed for the ensuing 10 years.

          Fixed

          Interest

          December 31, 

          December 31, 

          Maturity Date

          Rate

          2021

          2020

          3/1/2021

          4.37

          %

          $

          $

          10,000,000

          3/1/2021

          4.60

          %

          20,000,000

          9/1/2021

          3.39

          %

          10,000,000

          3/1/2023

          3.16

          %

          16,000,000

          16,000,000

          3/1/2024

          3.95

          %

          39,000,000

          39,000,000

          3/1/2024

          3.55

          %

          24,800,000

          24,800,000

          3/1/2027

          3.52

          %

          40,400,000

          40,400,000

          9/1/2027

          3.19

          %

          34,600,000

          34,600,000

          3/1/2028

          3.41

          %

          43,000,000

          43,000,000

          9/1/2028

          3.55

          %

          32,000,000

          32,000,000

          3/1/2030

          2.35

          %

          15,000,000

          15,000,000

          9/1/2030

          1.13

          %

          10,000,000

          10,000,000

          9/1/2030

          1.31

          %

          10,000,000

          10,000,000

          3/1/2031

          1.94

          %

          25,200,000

          5,000,000

          9/1/2031

          1.58

          %

          60,000,000

          Ending Balance

          350,000,000

          309,800,000

          Table of Contents


          MAIN STREET CAPITAL CORPORATION

          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

          NOTE F — CREDIT FACILITYCredit Facility

          Main Street maintains the Credit Facility to provide additional liquidity to support its investment and operational activities. TheAs of December 31, 2021 the Credit Facility was amended in September 2017 to increaseincluded total commitments to $585.0of $855.0 million from a diversified group of fifteen lenders. The Credit Facility matures18 lenders, held a maturity date in September 2021April 2026 and containscontained an accordion feature which allowsallowed Main Street to increase the total commitments under the facility to up to $750.0$1,200.0 million from new and existing lenders on the same terms and conditions as the existing commitments.

                 BorrowingsAs of December 31, 2021, borrowings under the Credit Facility bearbore interest, subject to Main Street'sStreet’s election and resetting on a monthly basis on the first of each month, on a per annum basis at a rate equal to the applicable LIBOR rate (1.56%(0.1% as of the most recent reset date for the period ended December 31, 2017)2021) plus (i) 1.875% (or the applicable base rate (Prime Rate of 4.50%3.25% as of December 31, 2017)2021) plus 0.875%) as long as Main Street maintains an investment grade rating and meets certain agreed upon excess collateral and maximum leverage requirements or (ii) 2.0% (or the applicable base rate plus 1.0%) if Main Street maintains an investment grade rating but does not meet certain excess collateral and maximum leverage requirements or (iii) 2.25% (or the applicable base rate plus 1.25%) if Main Street does not maintain an investment grade rating.otherwise. Main Street pays unused commitment fees of 0.25% per annum on the unused lender commitments under the Credit Facility. The Credit Facility is secured by a first lien on the assets of MSCC and its subsidiaries, excluding the equity ownership or assets of the Funds and the External Investment Manager. TheAs of December 31, 2021, the Credit Facility containscontained certain affirmative and negative covenants, including but not limited to: (i) maintaining a minimum availability of at least 10% of the borrowing base,liquidity, (ii) maintaining an interest coverage ratio of at least 2.0 to 1.0, (iii) maintaining ana 1940 Act asset coverage ratio of at least 1.5 to 1.0, and (iv) maintaining a minimum tangible net worth. The Credit Facility is providedworth and (v) maintaining a minimum asset coverage ratio of 200% with respect to the consolidated assets (with certain limitations on a revolving basis through its final maturity datethe contribution of equity in September 2021,financing subsidiaries as specified therein) of MSCC and contains two, one-year extension options which could extend the final maturity by up to two years, subject to certain conditions, including lender approval.

                 At December 31, 2017, Main Street had $64.0 million in borrowings outstandingguarantors under the Credit Facility. Facility to the secured debt of MSCC and the guarantors.

          As of December 31, 2017, if Main Street had adopted the fair value option under ASC 825 for its Credit Facility, Main Street estimates its fair value would approximate its recorded value. Main Street recognized interest expense related to the Credit Facility, including unused commitment fees and amortization of deferred issuance costs, of $10.6 million, $9.2 million and $7.7 million, respectively, for the years ended December 31, 2017, 2016 and 2015. As of December 31, 2017,2021, the interest rate on the Credit Facility was 3.2%2.0% (based on the LIBOR rate of 0.1% as of the most recent reset date plus 1.875%). The average interest rate for borrowings under the yearCredit Facility was 2.0% and 2.5% for the years ended December 31, 2017 was 3.0%.2021 and 2020, respectively. As of December 31, 2021, Main Street was in compliance with all financial covenants of the Credit Facility.

          NOTE G — NOTES156


            4.50% Notes due 2022

            In April 2013,November 2017, Main Street issued $92.0$185.0 million including the underwriters full exercise of their option to purchase additional principal amounts to cover over-allotments, in aggregate principal amount of 6.125% Notes4.50% unsecured notes due 2023December 1, 2022 (the "6.125% Notes"“4.50% Notes”) at an issue price of 99.16%. The 6.125%4.50% Notes are unsecured obligations and rank pari passu with Main Street's current and future unsecured indebtedness; senior to any of its future indebtedness that expressly provides it is subordinated to the 6.125% Notes; effectively subordinated to all of its existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under its Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of its subsidiaries, including without limitation, the indebtedness of the Funds. The 6.125% Notes mature on April 1, 2023, and may be redeemed in whole or in part at any time or from time to time at Main Street's option on or after April 1, 2018. The 6.125% Notes bear interest at a rate of 6.125% per year payable quarterly on January 1, April 1, July 1 and October 1 of each year. The total net proceeds to Main Street from the 6.125% Notes, after underwriting discounts and estimated offering expenses payable,


            Table of Contents


            MAIN STREET CAPITAL CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

            were approximately $89.0 million. Main Street has listed the 6.125% Notes on the New York Stock Exchange under the trading symbol "MSCA." Main Street may from time to time repurchase the 6.125% Notes in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2017, the outstanding balance of the 6.125% Notes was $90.7 million and the recorded value of $89.1 million was net of unamortized debt issuance costs of $1.6 million. As of December 31, 2017, if Main Street had adopted the fair value option under ASC 825 for the 6.125% Notes, Main Street estimates the fair value would be approximately $91.6 million. Main Street recognized interest expense related to the 6.125% Notes, including amortization of unamortized deferred issuance costs, of $5.9 million for each of the years ended December 31, 2017, 2016 and 2015.

                   The indenture governing the 6.125% Notes (the "6.125% Notes Indenture") contains certain covenants, including covenants requiring Main Street's compliance with (regardless of whether Main Street is subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring Main Street to provide financial information to the holders of the 6.125% Notes and the Trustee if Main Street ceases to be subject to the reporting requirements of the Securities Exchange Act of 1934. These covenants are subject to limitations and exceptions that are described in the 6.125% Notes Indenture. As of December 31, 2017, Main Street was in compliance with these covenants.

              4.50% Notes due 2019

                   In November 2014, Main Street issued $175.0 million in aggregate principal amount of 4.50% unsecured notes due 2019 (the "4.50% Notes due 2019") at an issue price of 99.53%. The 4.50% Notes due 2019 are unsecured obligations and rank pari passu with Main Street'sStreet’s current and future unsecured indebtedness; senior to any of its future indebtedness that expressly provides it is subordinated to the 4.50% Notes due 2019;Notes; effectively subordinated to all of its existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under its Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of its subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50% Notes due 2019 mature on December 1, 2019, and may be redeemed in whole or in part at any time at Main Street'sStreet’s option subject to certain make-whole provisions. The 4.50% Notes due 2019 bear interest at a rate of 4.50% per year payable semiannually on June 1 and December 1 of each year. The total net proceeds from the 4.50% Notes, due 2019, resulting from the issue price and after underwriting discounts and estimated offering expenses payable, were approximately $171.2$182.2 million. Main Street may from time to time repurchase the 4.50% Notes due 2019 in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2017, the outstanding balance of the 4.50% Notes due 2019 was $175.0 million and the recorded value of $173.6 million was net of unamortized debt issuance costs of $1.4 million. As of December 31, 2017, if Main Street had adopted the fair value option under ASC 825 for the 4.50% Notes due 2019, Main Street estimates its fair value would be approximately $177.0 million. Main Street recognized interest expense related to the 4.50% Notes due 2019, including amortization of unamortized deferred issuance costs, of $8.6 million for each of the years ended December 31, 2017, 2016 and 2015.

            The indenture governing the 4.50% Notes due 2019 (the "4.50%“4.50% Notes due 2019 Indenture"Indenture”) contains certain covenants, including covenants requiring Main Street'sStreet’s compliance with (regardless of whether Main Street is subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring Main Street to provide financial information to the holders of the 4.50% Notes due 2019 and the Trusteetrustee if Main Street ceases to be subject to the reporting requirements of the Securities Exchange Act of 1934.Act. These covenants are subject to limitations and exceptions that are described in the 4.50% Notes due 2019 Indenture. As of December 31, 2017,2021, Main Street was in compliance with these covenants.


            Table of Contents


            MAIN STREET CAPITAL CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

              4.50%5.20% Notes due 20222024

            In November 2017,April 2019, Main Street issued $185.0$250.0 million in aggregate principal amount of 4.50%5.20% unsecured notes due 2022May 1, 2024 (the "4.50% Notes due 2022"“5.20% Notes”) at an issue price of 99.16%99.125%. Subsequently, in December 2019, Main Street issued an additional $75.0 million aggregate principal amount of the 5.20% Notes at an issue price of 105.0% and, in July 2020, Main Street issued an additional $125.0 million aggregate principal amount at an issue price of 102.674%. The 4.50%5.20% Notes due 2022issued in December 2019 and July 2020 have identical terms as, and are a part of a single series with, the 5.20% Notes issued in April 2019. The 5.20% Notes are unsecured obligations and rank pari passu with Main Street'sStreet’s current and future unsecured indebtedness; senior to any of its future indebtedness that expressly provides it is subordinated to the 4.50% Notes due 2022;5.20% Notes; effectively subordinated to all of its existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under its Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of its subsidiaries, including without limitation, the indebtedness of the Funds. The 4.50%5.20% Notes due 2022 mature on December 1, 2022, and may be redeemed in whole or in part at any time at Main Street'sStreet’s option subject to certain make-whole provisions. The 4.50%5.20% Notes due 2022 bear interest at a rate of 4.50%5.20% per year payable semiannually on JuneMay 1 and DecemberNovember 1 of each year. The total net proceeds from the 4.50%5.20% Notes, due 2022, resulting from the issue price and after underwriting discountsnet issue price premiums and estimated offering expenses payable, were approximately $182.2$451.4 million. Main Street may from time to time repurchase the 4.50%5.20% Notes due 2022 in accordance with the 1940 Act and the rules promulgated thereunder. As of December 31, 2017, the outstanding balance of the 4.50% Notes due 2022 was $185.0 million and the recorded value of $182.0 million was net of unamortized debt issuance costs of $3.0 million. As of December 31, 2017, if Main Street had adopted the fair value option under ASC 825 for the 4.50% Notes due 2022, Main Street estimates its fair value would be approximately $186.6 million. Main Street recognized interest expense related to the 4.50% Notes due 2022, including amortization of unamortized deferred issuance costs, of $0.9 million for the year ended December 31, 2017.

            The indenture governing the 4.50%5.20% Notes due 2022 (the "4.50%“5.20% Notes due 2022 Indenture"Indenture”) contains certain covenants, including covenants requiring Main Street'sStreet’s compliance with (regardless of whether Main Street is subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring Main Street to provide financial information to the holders of the 4.50%5.20% Notes due 2022 and the Trusteetrustee if Main Street ceases to be subject to the reporting requirements of the Securities Exchange Act of 1934.Act. These covenants are subject to limitations and exceptions that are described in the 4.50%5.20% Notes due 2022 Indenture. As of December 31, 2017,2021, Main Street was in compliance with these covenants.

            3.00% Notes due 2026

            In January 2021, Main Street issued $300.0 million in aggregate principal amount of 3.00% unsecured notes due July 14, 2026 (the “3.00% Notes”) at an issue price of 99.004%. Subsequently, in October 2021, Main Street issued


            157


            an additional $200.0 million aggregate principal amount of the 3.00% Notes at an issue price of 101.741%. The 3.00% Notes issued in October 2021 have identical terms as, and are a part of a single series with, the 3.00% Notes issued in January 2021. The 3.00% Notes are unsecured obligations and rank pari passu with Main Street’s current and future unsecured indebtedness; senior to any of its future indebtedness that expressly provides it is subordinated to the 3.00% Notes; effectively subordinated to all of its existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness, including borrowings under its Credit Facility; and structurally subordinated to all existing and future indebtedness and other obligations of any of its subsidiaries, including without limitation, the indebtedness of the Funds. The 3.00% Notes may be redeemed in whole or in part at any time at Main Street’s option subject to certain make-whole provisions. The 3.00% Notes bear interest at a rate of 3.00% per year payable semiannually on January 14 and July 14 of each year. The total net proceeds from the 3.00% Notes, resulting from the issue price and after net issue price premiums and estimated offering expenses payable, were approximately $498.3 million. Main Street may from time to time repurchase the 3.00% Notes in accordance with the 1940 Act and the rules promulgated thereunder.


            MAIN STREET CAPITAL CORPORATION
            The indenture governing the 3.00% Notes (the “3.00% Notes Indenture”) contains certain covenants, including covenants requiring Main Street’s compliance with (regardless of whether Main Street is subject to) the asset coverage requirements set forth in Section 18(a)(1)(A) as modified by Section 61(a)(1) of the 1940 Act, as well as covenants requiring Main Street to provide financial information to the holders of the 3.00% Notes and the trustee if Main Street ceases to be subject to the reporting requirements of the Exchange Act. These covenants are subject to limitations and exceptions that are described in the 3.00% Notes Indenture. As of December 31, 2021, Main Street was in compliance with these covenants.

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)Contractual Payment Obligations

            NOTE H — FINANCIAL HIGHLIGHTS

             
             Twelve Months Ended December 31, 
            Per Share Data:
             2017 2016 2015 2014 2013 

            NAV at the beginning of the period

             $22.10 $21.24 $20.85 $19.89 $18.59 

            Net investment income(1)

              2.39  2.23  2.18  2.20  2.06 

            Net realized gain(1)(2)

              0.19  0.56  (0.43) 0.53  0.07 

            Net change in net unrealized appreciation (depreciation)(1)(2)

              0.86  (0.14) 0.20  (0.27) 0.52 

            Income tax benefit (provision)(1)(2)

              (0.43) 0.02  0.18  (0.15)  

            Net increase in net assets resulting from operations(1)

              3.01  2.67  2.13  2.31  2.65 

            Dividends paid from net investment income

              (2.47) (1.99) (2.49) (2.17) (2.29)

            Distributions from capital gains

              (0.32) (0.74) (0.16) (0.38) (0.37)

            Total dividends paid

              (2.79) (2.73) (2.65) (2.55) (2.66)

            Impact of the net change in monthly dividends declared prior to the end of the period and paid in the subsequent period

              (0.01) (0.01) (0.01) (0.01) (0.02)

            Accretive effect of stock offerings (issuing shares above NAV per share)

              1.07  0.76  0.74  1.07  1.13 

            Accretive effect of DRIP issuance (issuing shares above NAV per share)

              0.06  0.08  0.12  0.12  0.13 

            Other(3)

              0.09  0.09  0.06  0.02  0.07 

            NAV at the end of the period

             $23.53 $22.10 $21.24 $20.85 $19.89 

            Market value at the end of the period

             $39.73 $36.77 $29.08 $29.24 $32.69 

            Shares outstanding at the end of the period

              58,660,680  54,354,857  50,413,744  45,079,150  39,852,604 

            (1)
            Based on weighted-average numberA summary of common shares outstandingMain Street’s contractual payment obligations for the period.

            (2)
            Net realized gains or losses, net changerepayment of outstanding indebtedness at December 31, 2021 is as follows:

                

            2022

                

            2023

                

            2024

                

            2025

                

            2026

                

            Thereafter

                

            Total

            SBIC debentures

            $

            $

            16,000

            $

            63,800

            $

            $

            $

            270,200

            $

            350,000

            4.50% Notes due 2022

            185,000

            185,000

            5.20% Notes due 2024

            450,000

            450,000

            3.00% Notes due 2026

            500,000

            500,000

            Credit Facility

            320,000

            320,000

            Total

            $

            185,000

            $

            16,000

            $

            513,800

            $

            $

            820,000

            $

            270,200

            $

            1,805,000

            Senior Securities

            Information about Main Street’s senior securities is shown in unrealized appreciation or depreciation, and income taxes can fluctuate significantly from period to period.

            the following table as of December 31 for the years indicated in the table, unless otherwise noted.

                

            Total Amount

                

                

                

            Outstanding

            Involuntary

            Exclusive of

            Asset

            Liquidating

            Average

            Treasury

            Coverage

            Preference

            Market Value

            Class and Year

            Securities(1)

            per Unit(2)

            per Unit(3)

            per Unit(4)

            (dollars in

            thousands)

            SBIC Debentures

            2012

            $

            225,000

            2,763

            N/A

            2013

             

            200,200

            2,476

            N/A

            2014

             

            225,000

            2,323

            N/A

            2015

             

            225,000

            2,368

            N/A

            2016

             

            240,000

            2,415

            N/A

            2017

             

            295,800

            2,687

            N/A

            2018

             

            345,800

            2,455

            N/A


            158


                

            Total Amount

                

                

                

            Outstanding

            Involuntary

            Exclusive of

            Asset

            Liquidating

            Average

            Treasury

            Coverage

            Preference

            Market Value

            Class and Year

            Securities(1)

            per Unit(2)

            per Unit(3)

            per Unit(4)

            (dollars in

            thousands)

            2019

             

            311,800

            2,363

            N/A

            2020

             

            309,800

            2,244

            N/A

            2021

             

            350,000

            1,985

            N/A

            Credit Facility

             

            2012

            $

            132,000

            2,763

            N/A

            2013

             

            237,000

            2,476

            N/A

            2014

             

            218,000

            2,323

            N/A

            2015

             

            291,000

            2,368

            N/A

            2016

             

            343,000

            2,415

            N/A

            2017

             

            64,000

            2,687

            N/A

            2018

             

            301,000

            2,455

            N/A

            2019

             

            300,000

            2,363

            N/A

            2020

             

            269,000

            2,244

            N/A

            2021

             

            320,000

            1,985

            N/A

            6.125% Notes

             

            2013

            $

            90,882

            2,476

            $

            24.35

            2014

             

            90,823

            2,323

            24.78

            2015

             

            90,738

            2,368

            25.40

            2016

             

            90,655

            2,415

            25.76

            2017

            90,655

            2,687

            25.93

            4.50% Notes Due 2019

             

            2014

            $

            175,000

            2,323

            N/A

            2015

             

            175,000

            2,368

            N/A

            2016

             

            175,000

            2,415

            N/A

            2017

             

            175,000

            2,687

            N/A

            2018

            175,000

            2,455

            N/A

            4.50% Notes Due 2022

            2017

            $

            185,000

            2,687

            N/A

            2018

            185,000

            2,455

            N/A

            2019

             

            185,000

            2,363

            N/A

            2020

             

            185,000

            2,244

            N/A

            2021

            185,000

            1,985

            N/A

            5.20% Notes Due 2024

             

            2019

            $

            325,000

            2,363

            N/A

            2020

            450,000

            2,244

            N/A

            2021

            450,000

            1,985

            N/A

            3.00% Notes Due 2026

            2021

            $

            500,000

            1,985

            N/A


            (1)

            Total amount of each class of senior securities outstanding at the end of the period presented.

            (2)

            Asset coverage per unit is the ratio of the carrying value of Main Street’s total consolidated assets, less all liabilities and indebtedness not represented by senior securities, to the aggregate amount of senior securities representing indebtedness. Asset coverage per unit is expressed in terms of dollar amounts per $1,000 of indebtedness.

            (3)

            The amount to which such class of senior security would be entitled upon the involuntary liquidation of the issuer in preference to any security junior to it. The “—” indicates information that the SEC expressly does not require to be disclosed for certain types of senior securities.

            159


            (4)

            Average market value per unit for the 6.125% Notes represents the average of the daily closing prices as reported on the NYSE during the period presented. Average market value per unit for the SBIC debentures, Credit Facility, 4.50% Notes, 5.20% Notes and 3.00% notes are not applicable because these are not registered for public trading.

            NOTE F—FINANCIAL HIGHLIGHTS


            MAIN STREET CAPITAL CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

            (3)
            Includes the impact

                

            Twelve Months Ended December 31, 

            Per Share Data:

                

            2021

                

            2020

                

            2019

                

            2018

                

            2017

            NAV at the beginning of the period

            $

            22.35

            $

            23.91

            $

            24.09

            $

            23.53

            $

            22.10

            Net investment income(1)

             

            2.65

             

            2.10

             

            2.50

             

            2.60

             

            2.39

            Net realized gain (loss) (1)(2)

             

            0.66

             

            (1.77)

             

            (0.33)

             

            (0.03)

             

            0.19

            Net unrealized appreciation (depreciation)(1)(2)

             

            1.97

             

            (0.09)

             

            (0.09)

             

            0.32

             

            0.86

            Income tax benefit (provision)(1)(2)

             

            (0.48)

             

            0.21

             

            (0.02)

             

            (0.09)

             

            (0.43)

            Net increase (decrease) in net assets resulting from operations(1)

             

            4.80

             

            0.45

             

            2.06

             

            2.80

             

            3.01

            Dividends paid from net investment income

             

            2.58

             

            (2.46)

             

            (2.91)

             

            (2.69)

             

            (2.47)

            Distributions from capital gains

             

             

             

             

            (0.16)

             

            (0.32)

            Dividends paid

             

            (2.58)

             

            (2.46)

             

            (2.91)

             

            (2.85)

             

            (2.79)

            Impact of the net change in monthly dividends declared prior to the end of the period and paid in the subsequent period

             

            (0.01)

             

             

            (0.01)

             

            (0.01)

             

            (0.01)

            Accretive effect of stock offerings (issuing shares above NAV per share)

             

            0.58

             

            0.41

             

            0.55

             

            0.47

             

            1.07

            Accretive effect of DRIP issuance (issuing shares above NAV per share)

            0.09

            0.08

             

            0.12

             

            0.09

             

            0.06

            Other(3)

             

            0.06

             

            (0.04)

             

            0.01

             

            0.06

             

            0.09

            NAV at the end of the period

            $

            25.29

            $

            22.35

            $

            23.91

            $

            24.09

            $

            23.53

            Market value at the end of the period

            $

            44.86

            $

            32.26

            $

            43.11

            $

            33.81

            $

            39.73

            Shares outstanding at the end of the period

            70,737,021

            67,762,032

            64,252,937

            61,264,861

            58,660,680

            160


            Twelve Months Ended December 31, 

            Per Share Data:

                

            2016

                

            2015

                

            2014

                

            2013

                

            2012

            NAV at the beginning of the period

            $

            21.24

            $

            20.85

            $

            19.89

            $

            18.59

            $

            15.19

            Net investment income(1)

             

            2.23

             

            2.18

             

            2.20

             

            2.06

             

            2.01

            Net realized gain (loss) (1)(2)

             

            0.56

             

            (0.43)

             

            0.53

             

            0.07

             

            0.55

            Net unrealized appreciation (depreciation)(1)(2)

             

            (0.14)

             

            0.20

             

            (0.27)

             

            0.52

             

            1.34

            Income tax benefit (provision)(1)(2)

             

            0.02

             

            0.18

             

            (0.15)

             

             

            (0.37)

            Net increase (decrease) in net assets resulting from operations(1)

             

            2.67

             

            2.13

             

            2.31

             

            2.65

             

            3.53

            Dividends paid from net investment income

             

            (1.99)

             

            (2.49)

             

            (2.17)

             

            (2.29)

             

            (1.17)

            Distributions from capital gains

             

            (0.74)

             

            (0.16)

             

            (0.38)

             

            (0.37)

             

            (0.54)

            Dividends paid

             

            (2.73)

             

            (2.65)

             

            (2.55)

             

            (2.66)

             

            (1.71)

            Impact of the net change in monthly dividends declared prior to the end of the period and paid in the subsequent period

             

            (0.01)

             

            (0.01)

             

            (0.01)

             

            (0.02)

             

            (0.02)

            Accretive effect of stock offerings (issuing shares above NAV per share)

             

            0.76

             

            0.74

             

            1.07

             

            1.13

             

            1.33

            Accretive effect of DRIP issuance (issuing shares above NAV per share)

             

            0.08

             

            0.12

             

            0.12

             

            0.13

             

            0.07

            Other(3)

             

            0.09

             

            0.06

             

            0.02

             

            0.07

             

            0.20

            NAV at the end of the period

            $

            22.10

            $

            21.24

            $

            20.85

            $

            19.89

            $

            18.59

            Market value at the end of the period

            $

            36.77

            $

            29.08

            $

            29.24

            $

            32.69

            $

            30.51

            Shares outstanding at the end of the period

            54,354,857

            50,413,744

            45,079,150

            39,852,604

            34,589,484


            (1)Based on weighted-average number of common shares outstanding for the period.
            (2)Net realized gains or losses, net unrealized appreciation or depreciation, and income taxes can fluctuate significantly from period to period.
            (3)Includes the impact of the different share amounts as a result of calculating certain per share data based on the weighted-average basic shares outstanding during the period and certain per share data based on the shares outstanding as of a period end or transaction date.

            ��

            Year Ended December 31, 

            2021

               

            2020

               

            2019

            2018

            2017

            (dollars in thousands)

            NAV at end of period

            $

            1,788,846

            $

            1,514,767

            $

            1,536,390

            $

            1,476,049

            $

            1,380,368

            Average NAV

            $

            1,626,585

            $

            1,436,291

            $

            1,517,615

            $

            1,441,163

            $

            1,287,639

            Average outstanding debt

            $

            1,417,831

            $

            1,152,108

            $

            1,055,800

            $

            947,694

            $

            843,993

            Ratio of total expenses, including income tax expense, to average NAV (1)

            8.56

            %

            4.95

            %

            5.75

            %

            5.75

            %

            7.37

            %

            Ratio of operating expenses to average NAV (2)

            6.54

            %

            5.89

            %

            5.67

            %

            5.32

            %

            5.47

            %

            Ratio of operating expenses, excluding interest expense, to average NAV (2)

            2.92

            %

            2.44

            %

            2.36

            %

            2.30

            %

            2.63

            %

            Ratio of net investment income to average NAV

            11.23

            %

            9.60

            %

            10.37

            %

            10.87

            %

            10.51

            %

            Portfolio turnover ratio

            29.81

            %

            18.00

            %

            18.86

            %

            29.13

            %

            38.18

            %

            Total investment return (3)

            48.24

            %

            (19.11)

            %

            36.86

            %

            (8.25)

            %

            16.02

            %

            Total return based on change in NAV (4)

            21.84

            %

            1.91

            %

            8.78

            %

            12.19

            %

            14.20

            %

             
             Twelve Months Ended December 31, 
             
             2017 2016 2015 2014 2013 
             
             (dollars in thousands)
             

            NAV at end of period

             $1,380,368 $1,201,481 $1,070,894 $939,982 $792,533 

            Average NAV

             $1,287,639 $1,118,567 $1,055,313 $885,568 $706,056 

            Average outstanding debt

             $843,993 $801,048 $759,396 $575,524 $444,331 

            Ratio of total expenses, including income tax expense, to average NAV(1)

              7.37%  5.48%  4.63%  5.82%  5.82% 

            Ratio of operating expenses to average NAV(2)

              5.47%  5.59%  5.45%  5.11%  5.82% 

            Ratio of operating expenses, excluding interest expense, to average NAV(2)

              2.63%  2.58%  2.41%  2.44%  2.95% 

            Ratio of net investment income to average NAV

              10.51%  10.35%  10.15%  10.79%  10.68% 

            Portfolio turnover ratio

              38.18%  24.63%  25.37%  35.71%  36.10% 

            Total investment return(3)

              16.02%  37.36%  8.49%  –3.09%  16.68% 

            Total return based on change in NAV(4)

              14.20%  12.97%  11.11%  12.71%  15.06% 

            161


            (1)
            Total expenses are the sum of operating expenses and net income tax provision/benefit. Net income tax provision/benefit includes the accrual of net deferred tax provision/benefit relating to the net unrealized appreciation/depreciation on portfolio investments held in Taxable Subsidiaries and due to the change in the loss carryforwards, which are non-cash in nature and may vary significantly from period to period. Main Street is required to include net deferred tax provision/benefit in calculating its total expenses even though these net deferred taxes are not currently payable/receivable.

            (2)
            Unless otherwise noted, operating expenses include interest, compensation, general and administrative and share-based compensation expenses, net of expenses allocated to the External Investment Manager.

            (3)
            Total investment return is based on the purchase of stock at the current market price on the first day and a sale at the current market price on the last day of each period reported on the table and assumes reinvestment of dividends at prices obtained by Main Street's dividend reinvestment plan during the period. The return does not reflect any sales load that may be paid by an investor.

            (4)
            Total return is based on change in net asset value was calculated using the sum of ending net asset value plus dividends to stockholders and other non-operating changes during the period, as divided by the beginning net asset value. Non-operating changes include any items that affect net asset value other than the net increase in net assets resulting from operations, such as the effects of stock offerings, shares issued under the DRIP and equity incentive plans and other miscellaneous items.

            Year Ended December 31, 

            2016

               

            2015

               

            2014

            2013

            2012

            (dollars in thousands)

            NAV at end of period

            $

            1,201,481

            $

            1,070,894

            $

            939,982

            $

            792,533

            $

            642,976

            Average NAV

            $

            1,118,567

            $

            1,053,313

            $

            885,568

            $

            706,056

            $

            512,156

            Average outstanding debt

            $

            801,048

            $

            759,396

            $

            575,524

            $

            444,331

            $

            322,154

            Ratio of total expenses, including income tax expense, to average NAV (1)

            5.48

            %

            4.63

            %

            5.82

            %

            5.82

            %

            8.18

            %

            Ratio of operating expenses to average NAV (2)

            5.59

            %

            5.45

            %

            5.11

            %

            5.82

            %

            6.07

            %

            Ratio of operating expenses, excluding interest expense, to average NAV (2)

            2.58

            %

            2.41

            %

            2.44

            %

            2.95

            %

            3.03

            %

            Ratio of net investment income to average NAV

            10.35

            %

            10.15

            %

            10.79

            %

            10.68

            %

            11.57

            %

            Portfolio turnover ratio

            24.63

            %

            25.37

            %

            35.71

            %

            36.10

            %

            56.22

            %

            Total investment return (3)

            37.36

            %

            8.49

            %

            (3.09)

            %

            16.68

            %

            53.60

            %

            Total return based on change in NAV (4)

            12.97

            %

            11.11

            %

            12.71

            %

            15.06

            %

            25.73

            %


            (1)Total expenses are the sum of operating expenses and net income tax provision/benefit. Net income tax provision/benefit includes the accrual of net deferred tax provision/benefit relating to the net unrealized appreciation/depreciation on portfolio investments held in Taxable Subsidiaries and due to the change in the loss carryforwards, which are non-cash in nature and may vary significantly from period to period. Main Street is required to include net deferred tax provision/benefit in calculating its total expenses even though these net deferred taxes are not currently payable/receivable.
            (2)Unless otherwise noted, operating expenses include interest, compensation, general and administrative and share-based compensation expenses, net of expenses allocated to the External Investment Manager of $10.3 million, $7.4 million, $6.7 million, $6.8 million, $6.4 million, $5.1 million, $4.3 million and $2.0 million for the years ended December 31, 2021, 2020, 2019, 2018, 2017, 2016, 2015 and 2014. There were no expenses allocated to the External Investment Manager for the year ended December 31, 2013 and 2012.
            (3)Total investment return is based on the purchase of stock at the current market price on the first day and a sale at the current market price on the last day of each period reported on the table and assumes reinvestment of dividends at prices obtained by Main Street’s dividend reinvestment plan during the period. The return does not reflect any sales load that may be paid by an investor.
            (4)Total return is based on change in net asset value was calculated using the sum of ending net asset value plus dividends to stockholders and other non-operating changes during the period, as divided by the beginning net asset value. Non-operating changes include any items that affect net asset value other than the net increase in net assets resulting from operations, such as the effects of stock offerings, shares issued under the DRIP and equity incentive plans and other miscellaneous items.

            NOTE I — G—DIVIDENDS, DISTRIBUTIONS AND TAXABLE INCOME

            Main Street currently pays monthly dividends to its stockholders. Future monthly dividends, if any, will be determined by its Board of Directors on a quarterly basis. During 2017,2021, Main Street paid supplemental dividends of $0.275 per share in each of June and December 2017, regular monthly dividends of $0.185$0.205 per share for each month of January through September 2017,2021 and regular monthly dividends of $0.190$0.21 per share for each month of October through December 2017, with such dividends totaling $157.6 million, or $2.785 per share.2021. The 20172021 regular monthly dividends, which total $125.9$170.2 million, or $2.235$2.475 per share, represent a 2.8%0.6% increase from the regular monthly dividends paid totaling $161.1 million, or $2.46 per share, for the year ended 2016. 2020. During 2021, Main Street also paid a supplemental dividend of $0.10 per share in December 2021.

            For tax purposes, the 20172021 dividends, which included the effects of accrued dividends on an accrual basis, total $2.79$2.575 per share and were comprised of (i) ordinary income totaling approximately $2.218 per share, (ii) long term capital gain totaling approximately $0.490$1.891 per share, and (iii)(ii) qualified dividend income totaling approximately $0.082$0.684 per share. As of December 31, 2017,2021, Main Street estimates that it has generated undistributed taxable income of approximately $53.5$66.0 million, or $0.91$0.93 per share, that will be carried forward toward distributions to be paid in 2018. For the years ended December 31, 2016 and2022.


            162



            MAIN STREET CAPITAL CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

            2015, Main Street paid total dividends of approximately $141.6 million, or $2.725 per share, and $130.0 million, or $2.650 per share, respectively.

            MSCC has elected to be treated for U.S. federal income tax purposes as a RIC. MSCC'sMSCC’s taxable income includes the taxable income generated by MSCC and certain of its subsidiaries, including the Funds, which are treated as disregarded entities for tax purposes. As a RIC, MSCC generally will not pay corporate-level U.S. federal income taxes on any net ordinary taxable income or capital gains that MSCC distributes to its stockholders. MSCC must generally distribute at least 90% of its "investment“investment company taxable income"income” (which is generally its net ordinary taxable income and realized net short-term capital gains in excess of realized net long-term capital losses) and 90% of its tax-exempt income to maintain its RIC status (pass-through tax treatment for amounts distributed). As part of maintaining RIC status, undistributed taxable income (subject to a 4% non-deductible U.S. federal excise tax) pertaining to a given fiscal year may be distributed up to 12 months subsequent to the end of that fiscal year, provided such dividends are declared on or prior to the later of (i) filing of the U.S. federal income tax return for the applicable fiscal year or (ii) the fifteenth day of the ninth month following the close of the year in which such taxable income was generated.

            The determination of the tax attributes for Main Street’s distributions is made annually, based upon its taxable income for the full year and distributions paid for the full year. Therefore, a determination made on an interim basis may not be representative of the actual tax attributes of distributions for a full year. Ordinary dividend distributions from a RIC do not qualify for the 20% maximum tax rate (plus a 3.8% Medicare surtax, if applicable) on dividend income from domestic corporations and qualified foreign corporations, except to the extent that the RIC received the income in the form of qualifying dividends from domestic corporations and qualified foreign corporations. The tax attributes for distributions will generally include both ordinary income and capital gains,qualified dividends, but may also include qualified dividendseither one or both of capital gains and return of capital. The tax character of distributions paid for the years ended December 31, 2017, 20162021, 2020 and 20152019 was as follows:

            Twelve Months Ended December 31, 

            2021

            2020

            2019

            (dollars in thousands)

            Ordinary income(1)

            $

            129,625

            $

            135,128

            $

            166,280

            Qualified dividends

            47,202

            12,398

            15,451

            Distributions of long-term capital gains

            1,858

            Distributions on tax basis

            $

            176,827

            $

            147,526

            $

            183,589


            (1)The years ended December 31, 2021, 2020 and 2019 include $1.8 million, $1.5 million and $1.6 million, respectively, that was reported for tax purposes as compensation for services in accordance with Section 83 of the Code.
             
             Twelve Months Ended December 31, 
             
             2017 2016 2015 
             
             (dollars in thousands)
             

            Ordinary income(1)

             $126,540 $100,059 $114,975 

            Qualified dividends

              4,656  2,992  5,179 

            Distributions of long term capital gains

              27,479  39,522  11,285 

            Distributions on tax basis

             $158,675 $142,573 $131,439 

            163


            (1)
            The years ended December 31, 2017, 2016 and 2015 include $1.5 million, $1.6 million and $1.5 million, respectively, that was reported as compensation for services for tax purposes in accordance with Section 83 of the Code.

            Table of Contents


            MAIN STREET CAPITAL CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

            Listed below is a reconciliation of "Net“Net increase (decrease) in net assets resulting from operations"operations” to taxable income and to total distributions declared to common stockholders for the years ended December 31, 2017, 20162021, 2020 and 2015.2019.

            Year Ended December 31, 

               

            2021

               

            2020

               

            2019

            (estimated, dollars in thousands)

            Net increase (decrease) in net assets resulting from operations

            $

            330,762

            $

            29,383

            $

            129,569

            Book-tax difference from share-based compensation expense

            (3,213)

            5,139

            (354)

            Net unrealized (appreciation) depreciation

            (135,624)

            5,622

            5,754

            Income tax provision (benefit)

            32,863

            (13,541)

            1,242

            Pre-tax book (income) loss not consolidated for tax purposes

            (59,634)

            37,420

            (30,690)

            Book income and tax income differences, including debt origination, structuring fees, dividends, realized gains and changes in estimates

            39,819

            93,025

            65,686

            Estimated taxable income (1)

            204,973

            157,048

            171,207

            Taxable income earned in prior year and carried forward for distribution in current year

            24,359

            29,107

            41,489

            Taxable income earned prior to period end and carried forward for distribution next period

            (65,994)

            (38,248)

            (42,281)

            Dividend payable as of period end and paid in the following period

            15,159

            13,889

            13,174

            Total distributions accrued or paid to common stockholders

            $

            178,497

            $

            161,796

            $

            183,589

             
             Year Ended December 31, 
             
             2017 2016 2015 
             
             (estimated, dollars in thousands)
             

            Net increase in net assets resulting from operations

             $170,622 $138,899 $104,437 

            Book tax difference from share-based compensation expense

              (867) 1,619  1,006 

            Net change in net unrealized (appreciation) depreciation

              (48,757) 7,519  (9,992)

            Income tax provision (benefit)

              24,471  (1,227) (8,687)

            Pre-tax book loss not consolidated for tax purposes

              2,357  15,742  32,323 

            Book income and tax income differences, including debt origination, structuring fees, dividends, realized gains (losses) and changes in estimates

              10,844  (7,300) 3,397 

            Estimated taxable income(1)

              158,670  155,252  122,484 

            Taxable income earned in prior year and carried forward for distribution in current year

              42,362  29,683  38,638 

            Taxable income earned prior to period end and carried forward for distribution next period

              (53,503) (52,410) (38,757)

            Dividend payable as of period end and paid in the following period

              11,146  10,048  9,074 

            Total distributions accrued or paid to common stockholders

             $158,675 $142,573 $131,439 

            (1)Main Street’s taxable income for each period is an estimate and will not be finally determined until the company files its tax return for each year. Therefore, the final taxable income, and the taxable income earned in each period and carried forward for distribution in the following period, may be different than this estimate.
            (1)
            Main Street's taxable income for each period is an estimate and will not be finally determined until the company files its tax return for each year. Therefore, the final taxable income, and the taxable income earned in each period and carried forward for distribution in the following period, may be different than this estimate.

            The Taxable Subsidiaries primarily hold certain portfolio investments for Main Street. The Taxable Subsidiaries permit Main Street to hold equity investments in portfolio companies which are "pass-through"“pass-through” entities for tax purposes and to continue to comply with the "source-of-income"“source-of-income” requirements contained in the RIC tax provisions of the Code. The Taxable Subsidiaries are consolidated with Main Street for U.S. GAAP financial reporting purposes, and the portfolio investments held by the Taxable Subsidiaries are included in Main Street'sStreet’s consolidated financial statements as portfolio investments and recorded at fair value. The Taxable Subsidiaries are not consolidated with MSCC for income tax purposes and may generate income tax expense, or benefit, and tax assets and liabilities, as a result of their ownership of certain portfolio investments. The taxable income, or loss, of the Taxable Subsidiaries may differ from itstheir book income, or loss, due to temporary book and tax timing differences and permanent differences. The Taxable Subsidiaries are each taxed at their normal corporate tax rates based on their taxable income. The income tax expense, or benefit, if any, and the related tax assets and liabilities, of the Taxable Subsidiaries are reflected in Main Street'sStreet’s consolidated financial statements.

            The income tax expense (benefit) for Main Street is generally composed of (i) deferred tax expense (benefit), which is primarily the result of the net activity relating to the portfolio investments held in the Taxable Subsidiaries, including changes in loss carryforwards, changes in net unrealized appreciation or depreciation and other temporary book tax differences, and (ii) current tax expense, which is primarily the result of current U.S. federal income and state taxes and excise taxes on Main Street’s estimated undistributed taxable income. The income tax expense, or benefit, and the related tax assets and liabilities generated by the Taxable Subsidiaries, if any, are reflected in Main Street's Street’s

            164


            consolidated statement of operations. Main Street's


            Table of Contents


            MAIN STREET CAPITAL CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

            Street’s provision for income taxes was comprised of the following for the years ended December 31, 2017, 20162021, 2020 and 20152019 (amounts in thousands):


             Twelve Months Ended December 31, 

             2017 2016 2015 

            Current tax expense:

                   

            Twelve Months Ended

            December 31, 

            2021

            2020

            2019

            Current tax expense (benefit):

            Federal

             $1,865 $1 $607 

            $

            (235)

            $

            497

            $

            1,019

            State

             1,415 347 1,181 

            3,377

            (1,554)

            1,408

            Total current tax expense

             3,280 348 1,788 

            Excise

            2,590

            1,647

            1,119

            Total current tax expense (benefit)

            5,732

            590

            3,546

            Deferred tax expense (benefit):

                   

            Federal

             15,248 (5,359) (10,781)

            23,205

            (13,082)

            (1,267)

            State

             4,017 2,043 (870)

            3,926

            (1,049)

            (1,037)

            Total deferred tax expense (benefit)

             19,265 (3,316) (11,651)

            27,131

            (14,131)

            (2,304)

            Excise tax

             1,926 1,741 1,176 

            Total income tax provision (benefit)

             $24,471 $(1,227)$(8,687)

            $

            32,863

            $

            (13,541)

            $

            1,242

            MSCC operates in a manner to maintain its RIC status and to eliminate corporate-level U.S. federal income tax (other than the 4% excise tax) by distributing sufficient investment company taxable income and long-term capital gains. As a result, MSCC will have an effective tax rate equal to 0% before the excise tax and income taxes incurred by the Taxable Subsidiaries. As such, a reconciliation of the differences between Main Street’s reported income tax expense and its tax expense at the federal statutory rate of 21% is not meaningful.

            As of December 31, 2017,2021, the cost of investments for U.S. federal income tax purposes was $2,002.1$3,256.5 million, with such investments having a gross unrealized appreciation of $329.4$559.9 million and gross unrealized depreciation of $154.3$253.6 million.

                   The net deferred tax liability at December 31, 2017 was $10.6 million compared to a net deferred tax asset of $9.1 million at December 31, 2016, primarily related to loss carryforwards, timing differences in net unrealized appreciation or depreciation and other temporary book-tax differences relating to portfolio investments held by the Taxable Subsidiaries. In addition, during the three months ended March 31, 2016, Main Street recorded a one-time $1.8 million increase to deferred tax assets for previously unrecognized excess tax benefits associated with share-based compensation due to the early adoption of the new accounting standard ASU 2016-09 (See further discussion in Note B.8.). The net deferred tax liability as of December 31, 2017 equal to $10.6 million reflects a reduction of $2.8 million resulting from the decrease in the U.S. federal corporate income tax rate from 35% to 21% as enacted by the Tax Cuts and Jobs Act (See further discussion in Note B.9.). For the year ended December 31, 2017, for U.S. federal income tax purposes, the Taxable Subsidiaries utilized capital loss carryforwards totaling approximately $9.1 million. At December 31, 2017, for U.S. federal income tax purposes, the Taxable Subsidiaries had a capital loss carryforward of $4.6 million which, if unused, will expire in taxable year 2021. At December 31, 2017, for U.S. federal income tax purposes, the Taxable Subsidiaries had a net operating loss carryforward which, if unused, will expire in various taxable years from 2029 through 2037. The timing and manner in which Main Street will utilize any loss carryforwards in any year, or in total, may be limited in the future under the provisions of the Code.

            Management believes that the realization of the deferred tax assets is more likely than not based on expectations as to future taxable income and scheduled reversals of temporary differences. Accordingly, Main Street did not record a valuation allowance related to its deferred tax assets at December 31, 20172021 and 2016.


            Table of Contents


            MAIN STREET CAPITAL CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

            2020. The following table sets forth the significant components of net deferred tax assets and liabilities as of December 31, 20172021 and 20162020 (amounts in thousands):

            Years Ended 

            December 31, 

            2021

            2020

            Deferred tax assets:

              

            Net operating loss carryforwards

            $

            34,102

            $

            41,691

            Interest expense carryforwards

            11,283

            9,779

            Capital loss carryforwards

            929

            Other

            2,809

            2,315

            Total deferred tax assets

            48,194

            54,714

            Deferred tax liabilities:

              

            Net unrealized appreciation of portfolio investments

            (49,658)

            (28,351)

            Net basis differences in portfolio investments

            (28,259)

            (28,955)

            Total deferred tax liabilities

            (77,917)

            (57,306)

            Total deferred tax asset (liabilities), net

            $

            (29,723)

            $

            (2,592)

            The net deferred tax liability at December 31, 2021 and 2020 was $29.7 million and $2.6 million, respectively, with the change primarily related to changes in net unrealized appreciation or depreciation, changes in loss carryforwards, and other temporary book-tax differences relating to portfolio investments held by the Taxable Subsidiaries. At December 31, 2021, for U.S. federal income tax purposes, the Taxable Subsidiaries had a net operating loss carryforward from prior years which, if unused, will expire in various taxable years from 2034 through 2037. Any

            165


             
             Years Ended December 31, 
             
             2017 2016 

            Deferred tax assets:

                   

            Net operating loss carryforwards

             $28,422 $38,880 

            Capital loss carryforwards

              1,011  5,175 

            Other

              893   

            Total deferred tax assets

              30,326  44,055 

            Deferred tax liabilities:

                   

            Net unrealized appreciation of portfolio investments

              (31,711) (21,807)

            Net basis differences in portfolio investments

              (9,168) (13,112)

            Other

                (11)

            Total deferred tax liabilities

              (40,879) (34,930)

            Total deferred tax asset (liabilities), net

             $(10,553)$9,125 

            net operating losses generated in 2018 and future periods are not subject to expiration and will carryforward indefinitely until utilized. The Taxable Subsidiaries have interest expense limitation carryforwards which have an indefinite carryforward. In addition, as of December 31, 2021, for U.S. federal income tax purposes at the RIC level, MSCC had net capital loss carryforwards totaling approximately $67.7 million available to offset future capital gains, to the extent available and permitted by U.S. federal income tax law. However, as long as MSCC maintains its RIC status, any capital loss carryforwards at the RIC are not subject to a federal income tax-effect and are not subject to an expiration date.

            NOTE J — H—COMMON STOCK

                   In November 2015, Main Street commencedmaintains a program with certain selling agents through which it can sell shares of its common stock by means of at-the-market offerings from time to time (the "ATM Program"“ATM Program”).

            During the year ended December 31, 2017,2021, Main Street sold 3,944,9722,332,795 shares of its common stock at a weighted-average price of $38.72$42.71 per share and raised $152.8$99.6 million of gross proceeds under the ATM Program. Net proceeds were $150.9$98.4 million after commissions to the selling agents on shares sold and offering costs. As of December 31, 2017, 1,911,356 shares remained available for sale under the ATM Program.

                   During the year ended December 31, 2016, Main Street sold 3,324,646 shares of its common stock at a weighted-average price of $34.17 per share and raised $113.6 million of gross proceeds under the ATM Program. Net proceeds were $112.0 million after commissions to the selling agents on shares sold and offering costs. As of December 31, 2016,2021, sales transactions representing 42,41336,136 shares had not settled and are not included in shares issued and outstanding on the face of the consolidated balance sheet, but are included in the weighted-average shares outstanding in the consolidated statement of operations and in the shares used to calculate net asset value per share. As of December 31, 2021, 3,380,577 shares remained available for sale under the ATM Program.

            During November andthe year ended December 2015,31, 2020, Main Street sold 140,5682,645,778 shares of its common stock at a weighted-average price of $31.98$32.10 per share and raised $4.5$84.9 million of gross proceeds under the ATM Program. Net proceeds were $4.3$83.8 million after commissions to the selling agents on shares sold and offering costs.

            During March 2015,the year ended December 31, 2019, Main Street completed a follow-on public equity offering of 4,370,000sold 2,247,187 shares of its common stock includingat a weighted-average price of $40.05 per share and raised $90.0 million of gross proceeds under the underwriters' full exercise of their optionATM Program. Net proceeds were $88.8 million after commissions to purchase 570,000 additionalthe selling agents on shares resulting in total net proceeds, including exercise of the underwriters' option to purchase additional sharessold and after deducting underwriting discounts and estimated offering expenses payable by Main Street, of approximately $127.8 million.


            Table of Contentscosts.


            MAIN STREET CAPITAL CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

            NOTE K — I—DIVIDEND REINVESTMENT PLAN ("DRIP")

            The dividend reinvestment feature of Main Street's DRIPStreet’s dividend reinvestment and direct stock purchase plan (the “DRIP”) provides for the reinvestment of dividends on behalf of its stockholders, unless a stockholder has elected to receive dividends in cash. As a result, if Main Street declares a cash dividend, the company'sits stockholders who have not "opted out"“opted out” of the DRIP by the dividend record date will have their cash dividend automatically reinvested into additional shares of MSCC common stock. The share requirements of the DRIP may be satisfied through the issuance of shares of common stock or through open market purchases of common stock.stock by the DRIP plan administrator. Newly issued shares will be valued based upon the final closing price of MSCC'sMSCC’s common stock on the valuation date determined for each dividend by Main Street'sStreet’s Board of Directors. Shares purchased in the open market to satisfy the DRIP requirements will be valued based upon the average price of the applicable shares purchased, before any associated brokerage or other costs. Main Street'sStreet’s DRIP is administered by its transfer agent on behalf of Main Street'sStreet’s record holders and participating brokerage firms. Brokerage firms and other financial intermediaries may decide not to participate in Main Street'sStreet’s DRIP but may provide a similar dividend reinvestment plan for their clients.

                   ForSummarized DRIP information for the yearyears ended December 31, 2017, $9.2 million2021, 2020 and 2019 is as follows:

            December 31, 

            2021

            2020

            2019

            ($ in millions)

            DRIP participation

            $

            16.3

            $

            16.2

            $

            18.1

            Shares issued for DRIP

            404,384

            517,796

            441,927

            166


            NOTE L — J—SHARE-BASED COMPENSATION

            Main Street accounts for its share-based compensation plans using the fair value method, as prescribed by ASC 718,Compensation — Compensation—Stock Compensation. Accordingly, for restricted stock awards, Main Street measured the grant date fair value based upon the market price of its common stock on the date of the grant and amortizes the fair value of the awards as share-based compensation expense over the requisite service period, which is generally the vesting term.

            Main Street'sStreet’s Board of Directors approves the issuance of shares of restricted stock to Main Street employees pursuant to the Main Street Capital Corporation 2015 Equity and Incentive Plan (the "Equity“Equity and Incentive Plan"Plan”). These shares generally vest over a three-year period from the grant date. The fair value is expensed over the service period, starting on the grant date. The following table summarizes the restricted stock issuances approved by Main Street'sStreet’s Board of Directors under the Equity and Incentive Plan, net of shares forfeited, if any, and the remaining shares of restricted stock available for issuance as of December 31, 2017.2021.

            Restricted stock authorized under the plan

            3,000,000

            Less net restricted stock granted during:

            Year ended December 31, 2015

            (900)

            (900)

            Year ended December 31, 2016

            (260,514)

            (260,514)

            Year ended December 31, 2017

            (223,812)

            (223,812)

            Year ended December 31, 2018

            (243,779)

            Year ended December 31, 2019

            (384,049)

            Year ended December 31, 2020

            (370,272)

            Year ended December 31, 2021

            (332,143)

            Restricted stock available for issuance as of December 31, 20172021

            2,514,774

            1,184,531


            Table of Contents


            MAIN STREET CAPITAL CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

            As of December 31, 2017,2021, the following table summarizes the restricted stock issued to Main Street'sStreet’s non-employee directors and the remaining shares of restricted stock available for issuance pursuant to the Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan. These shares are granted upon appointment or election to the board and vest on the day immediately preceding the annual meeting of stockholders following the respective grant date and are expensed over such service period.

            Restricted stock authorized under the plan

            300,000

            Less net restricted stock granted during:

            Year ended December 31, 2015

            (6,806)

            (6,806)

            Year ended December 31, 2016

            (6,748)

            (6,748)

            Year ended December 31, 2017

            (5,948)

            (5,948)

            Year ended December 31, 2018

            (6,376)

            Year ended December 31, 2019

            (6,008)

            Year ended December 31, 2020

            (11,463)

            Year ended December 31, 2021

            (4,949)

            Restricted stock available for issuance as of December 31, 20172021

            280,498

            251,702

            For the years ended December 31, 2017, 20162021, 2020 and 2015,2019, Main Street recognized total share-based compensation expense of $10.0$10.9 million, $8.3$10.8 million and $6.3$10.1 million, respectively, related to the restricted stock issued to Main Street employees and independentnon-employee directors.

            As of December 31, 2017,2021, there was $10.8$14.3 million of total unrecognized compensation expense related to Main Street'sStreet’s non-vested restricted shares. This compensation expense is expected to be recognized over a remaining weighted-average period of approximately 1.71.8 years as of December 31, 2017.2021.


            167



            MAIN STREET CAPITAL CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

            NOTE M — K—COMMITMENTS AND CONTINGENCIES

                   As ofAt December 31, 2017,2021, Main Street had the following outstanding commitments (in thousands):

            Investments with equity capital commitments that have not yet funded:

                

            Amount

             

            Congruent Credit Opportunities Fund III, LP

            $

            8,117

            Encap Energy Fund Investments

            EnCap Energy Capital Fund IX, L.P.

            $

            216

            EnCap Energy Capital Fund X, L.P.

             

            748

            EnCap Flatrock Midstream Fund II, L.P.

            4,586

            EnCap Flatrock Midstream Fund III, L.P.

            365

            $

            5,915

            MS Private Loan Fund I, LP

            $

            7,500

            EIG Fund Investments

            $

            3,701

             

            Brightwood Capital Fund Investments

            Brightwood Capital Fund III, LP

            $

            3,000

            Brightwood Capital Fund V, LP

            4,000

            $

            7,000

            Freeport Fund Investments

            Freeport Financial SBIC Fund LP

            $

            1,375

            Freeport First Lien Loan Fund III LP

            4,871

            $

            6,246

            LKCM Headwater Investments I, L.P.

            $

            2,500

            UnionRock Energy Fund II, LP

            $

            1,039

            HPEP 3, L.P.

            $

            1,555

            Dos Rios Partners

            Dos Rios Partners, LP

            $

            835

            Dos Rios Partners - A, LP

            265

            $

            1,100

            Total Equity Commitments

            $

            44,673

            168


             
             Amount 

            Investments with equity capital commitments that have not yet funded:

                

            Congruent Credit Opportunities Funds

                

            Congruent Credit Opportunities Fund II, LP

             $8,488 

            Congruent Credit Opportunities Fund III, LP

              12,131 

             $20,619 

            Encap Energy Fund Investments

                

            EnCap Energy Capital Fund VIII, L.P. 

             $377 

            EnCap Energy Capital Fund IX, L.P. 

              591 

            EnCap Energy Capital Fund X, L.P. 

              3,856 

            EnCap Flatrock Midstream Fund II, L.P. 

              7,117 

            EnCap Flatrock Midstream Fund III, L.P. 

              4,042 

             $15,983 

            Brightwood Capital Fund Investments

                

            Brightwood Capital Fund III, LP

             $3,000 

            Brightwood Capital Fund IV, LP

              4,000 

             $7,000 

            Freeport Fund Investments

                

            Freeport First Lien Loan Fund III LP

             $3,942 

            Freeport Financial SBIC Fund LP

              1,375 

             $5,317 

            EIG Fund Investments

             $3,980 

            Harris Preston Fund Investments

                

            HPEP 3, L.P. 

             $4,057 

            LKCM Headwater Investments I, L.P. 

             $2,500 

            Copper Trail Energy Fund I, LP

             $2,500 

            Dos Rios Partners

                

            Dos Rios Partners, LP

             $1,594 

            Dos Rios Partners — A, LP

              506 

             $2,100 

            I-45 SLF LLC

             $800 

            Access Media Holdings, LLC

             $302 

            Total equity commitments

             $65,158 

            Investments with commitments to fund revolving loans that have not been fully drawn or term loans with additional commitments not yet funded:

                

            Resolute Industrial, LLC

             $5,750 

            NNE Partners, LLC

              5,542 

            PT Network, LLC

              3,947 

            Hojeij Branded Foods, LLC

              3,422 

            CDHA Management, LLC

              2,343 

            Wireless Vision Holdings, LLC

              2,068 

            Boccella Precast Products LLC

              2,000 

            Arcus Hunting LLC

              1,951 

            Barfly Ventures, LLC

              1,838 

            Felix Investments Holdings II

              1,667 

            Hawk Ridge Systems, LLC

              1,600 

            Meisler Operating LLC

              1,600 

            Market Force Information, LLC

              1,600 

            Aethon United BR LP

              1,563 

            IDX Broker, LLC

              1,500 

            Lamb Ventures, LLC

              1,500 

            GST Autoleather, Inc. 

              1,437 

            Messenger, LLC

              1,417 

            TGP Holdings III LLC

              1,255 

            Gamber-Johnson Holdings, LLC

              1,200 

            NuStep, LLC

              1,200 

            Subsea Global Solutions, LLC

              1,114 

            CTVSH, PLLC

              800 

            Mystic Logistics Holdings, LLC

              800 

            KBK Industries, LLC

              625 

            NRI Clinical Research, LLC

              600 

            PPC/SHIFT LLC

              500 

            UniTek Global Services, Inc. 

              483 

            ATS Workholding, LLC

              461 

            Grace Hill, LLC

              444 

            Clad-Rex Steel, LLC

              400 

            Gulf Publishing Holdings, LLC

              320 

            OnAsset Intelligence, Inc. 

              225 

            Jensen Jewelers of Idaho, LLC

              200 

            BigName Commerce, LLC

              101 

            Permian Holdco 2, Inc. 

              39 

            Total loan commitments

             $53,512 

            Total commitments

             $118,670 

            Table of Contents

            Investments with commitments to fund revolving loans that have not been fully drawn or term loans with additional commitments not yet funded:

                

            Amount

            Xenon Arc, Inc.

            $

            32,400

            JTI Electrical & Mechanical, LLC

            8,421

            NinjaTrader, LLC

            7,472

            Watterson Brands, LLC

            7,374

            NWN Corporation

            6,716

            South Coast Terminals Holdings, LLC

            5,433

            SI East, LLC

            5,250

            Bolder Panther Group, LLC

            5,000

            Pearl Meyer Topco LLC

            5,000

            ArborWorks, LLC

            4,818

            Robbins Bros. Jewelry, Inc.

            4,500

            Event Holdco, LLC

            4,308

            Winter Services LLC

            4,167

            Classic H&G Holdco, LLC

            4,000

            Roof Opco, LLC

            3,889

            Direct Marketing Solutions, Inc.

            3,400

            Rug Doctor, LLC

            3,270

            MB2 Dental Solutions, LLC

            3,120

            Cody Pools, Inc.

            2,950

            Infolinks Media Buyco, LLC

            2,520

            AVEX Aviation Holdings, LLC

            2,520

            Nebraska Vet AcquireCo, LLC

            2,500

            Superior Rigging & Erecting Co.

            2,500

            Klein Hersh, LLC

            2,500

            IG Parent Corporation

            2,500

            Computer Data Source, LLC

            2,250

            KMS, LLC

            2,171

            SIB Holdings, LLC

            2,124

            RTIC Subsidiary Holdings, LLC

            2,055

            Mako Steel, LP

            2,049

            Fortna, Inc.

            2,027

            VVS Holdco, LLC

            2,000

            Burning Glass Intermediate Holding Company, Inc.

            1,859

            Evergreen North America Acquisitions, LLC

            1,854

            MS Private Loan Fund I, LP

            1,849

            Career Team Acquireco LLC

            1,800

            Johnson Downie Opco, LLC

            1,800

            Eastern Wholesale Fence LLC

            1,747

            The Affiliati Network, LLC

            1,720

            Colonial Electric Company LLC

            1,600

            Market Force Information, LLC

            1,600

            Chamberlin Holding LLC

            1,600

            Flame King Holdings, LLC

            1,600

            Trantech Radiator Topco, LLC

            1,600

            GS HVAM Intermediate, LLC

            1,591

            Hawk Ridge Systems, LLC

            1,415

            GRT Rubber Technologies LLC

            1,340

            Interface Security Systems, L.L.C

            1,312

            RA Outdoors LLC

            1,278

            PPL RVs, Inc.

            1,250

            Project Eagle Holdings, LLC

            1,250

            Gamber-Johnson Holdings, LLC

            1,200

            Invincible Boat Company, LLC.

            1,080

            CompareNetworks Topco, LLC

            1,000

            American Health Staffing Group, Inc.

            933

            Mystic Logistics Holdings, LLC

            800

            Project BarFly, LLC

            760

            DTE Enterprises, LLC

            750

            Student Resource Center, LLC

            750

            Orttech Holdings, LLC

            625

            ASC Interests, LLC

            500

            Jensen Jewelers of Idaho, LLC

            500

            PT Network, LLC

            460

            169


            Investments with commitments to fund revolving loans that have not been fully drawn or term loans with additional commitments not yet funded:

                

            Amount

            Wall Street Prep, Inc.

            400

            American Nuts, LLC

            281

            Dynamic Communities, LLC

            250

            Acousti Engineering Company of Florida

            53

            Total Loan Commitments

            $

            191,611

            Total Commitments

            $

            236,284


            MAIN STREET CAPITAL CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

            Main Street will fund its unfunded commitments from the same sources it uses to fund its investment commitments that are funded at the time they are made (which are typically through existing cash and cash equivalents and borrowings under the Credit Facility). Main Street follows a process to manage its liquidity and ensure that it has available capital to fund its unfunded commitments as necessary. The Company had total unrealized depreciation of $0.1 million on the outstanding unfunded commitments as of December 31, 2017.2021.

            Effective January 1, 2019, ASC 842 required that a lessee evaluate its leases to determine whether they should be classified as operating or financing leases. Main Street identified one operating lease for its office space. The lease commenced May 15, 2017 and expires January 31, 2028. It contains two five-year extension options for a final expiration date of January 31, 2038.

            As Main Street classified this lease as an operating lease prior to implementation, ASC 842-10-65-1 indicates that a right-of-use asset and lease liability should be recorded based on the effective date. Main Street adopted ASC 842 effective January 1, 2019 and recorded a right-of-use asset and a lease liability as of that date. After this date, Main Street has anrecorded lease expense on a straight-line basis, consistent with the accounting treatment for lease expense prior to the adoption of ASC 842.

            Total operating lease for office space. Total rent expensecost incurred by Main Street for each of the years ended December 2017, 201631, 2021, 2020 and 20152019 was $0.7 million, $0.6million. As of December 31, 2021, the asset related to the operating lease was $3.8 million and $0.5is included in the interest receivable and other assets balance on the consolidated balance sheet. The lease liability was $4.4 million respectively.and is included in the accounts payable and other liabilities balance on the consolidated balance sheet. As of December 31, 2021, the remaining lease term was 6.1 years and the discount rate was 4.2%.

            The following table shows future minimum payments under Main Street'sStreet’s operating lease as of December 31, 2017:2021 (in thousands):

            For the Years Ended December 31,
             Amount 

            Amount

            2018

             346 

            2019

             749 

            2020

             763 

            2021

             777 

            2022

             791 

            $

            790

            2023

            804

            2024

            818

            2025

            832

            2026

            846

            Thereafter

             4,239 

            933

            Total

             $7,665 

            $

            5,023

            Main Street may, from time to time, be involved in litigation arising out of its operations in the normal course of business or otherwise. Furthermore, third parties may try to impose liability on Main Street in connection with the activities of its portfolio companies. While the outcome of any current legal proceedings cannot at this time be predicted with certainty, Main Street does not expect any current matters will materially affect its financial condition or results of operations; however, there can be no assurance whether any pending legal proceedings will have a material adverse effect on Main Street'sStreet’s financial condition or results of operations in any future reporting period.

            170


            NOTE N —L – SELECTED QUARTERLY DATA (UNAUDITED)

                

            2021

            (dollars in thousands, 

            except per share amounts)

            Qtr. 1

            Qtr. 2

            Qtr. 3

            Qtr. 4

            Total investment income

            $

            62,807

            $

            67,294

            $

            76,779

            $

            82,167

            Net investment income

            $

            39,757

            $

            42,395

            $

            49,304

            $

            51,209

            Net increase in net assets resulting from operations

            $

            57,346

            $

            95,110

            $

            83,956

            $

            94,350

            Net investment income per share — basic and diluted

            $

            0.58

            $

            0.62

            $

            0.71

            $

            0.73

            Net increase in net assets resulting from operations per share — basic and diluted

            $

            0.84

            $

            1.39

            $

            1.22

            $

            1.34

                

            2020

            (dollars in thousands,

            except per share amounts)

                

            Qtr. 1

                

            Qtr. 2

                

            Qtr. 3

                

            Qtr. 4

            Total investment income

            $

            56,150

            $

            52,007

            $

            51,954

            $

            62,503

            Net investment income

            $

            36,545

            $

            31,294

            $

            30,462

            $

            39,644

            Net increase in net assets resulting from operations

            $

            (171,438)

            $

            43,369

            $

            78,195

            $

            79,257

            Net investment income per share — basic and diluted

            $

            0.57

            $

            0.48

            $

            0.46

            $

            0.59

            Net increase in net assets resulting from operations per share — basic and diluted

            $

            (2.66)

            $

            0.66

            $

            1.18

            $

            1.19

                

            2019

            (dollars in thousands,

             except per share amounts)

                

            Qtr. 1

                

            Qtr. 2

                

            Qtr. 3

                

            Qtr. 4

            Total investment income

            $

            61,365

            $

            61,293

            $

            60,068

            $

            60,649

            Net investment income

            $

            39,491

            $

            39,617

            $

            39,012

            $

            39,247

            Net increase in net assets resulting from operations

            $

            41,401

            $

            38,254

            $

            33,902

            $

            16,014

            Net investment income per share — basic and diluted

            $

            0.64

            $

            0.63

            $

            0.62

            $

            0.62

            Net increase in net assets resulting from operations per share — basic and diluted

            $

            0.67

            $

            0.61

            $

            0.54

            $

            0.25

             
             2017 
             
             (dollars in thousands,
            except per share amounts)
             
             
             Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 

            Total investment income

             $47,889 $50,271 $51,786 $55,795 

            Net investment income

             $31,166 $32,693 $34,029 $37,483 

            Net increase in net assets resulting from operations

             $31,450 $42,829 $34,899 $61,444 

            Net investment income per share-basic and diluted

             $0.57 $0.58 $0.60 $0.64 

            Net increase in net assets resulting from operations per share-basic and diluted

             $0.57 $0.76 $0.61 $1.05 

            Table of Contents


            MAIN STREET CAPITAL CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)


             
             2016 
             
             (dollars in thousands,
            except per share amounts)
             
             
             Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 

            Total investment income

             $42,006 $42,902 $46,599 $46,830 

            Net investment income

             $27,164 $27,648 $30,557 $30,432 

            Net increase in net assets resulting from operations

             $16,812 $30,911 $43,181 $47,993 

            Net investment income per share-basic and diluted

             $0.54 $0.54 $0.58 $0.57 

            Net increase in net assets resulting from operations per share-basic and diluted

             $0.33 $0.60 $0.82 $0.90 


             
             2015 
             
             (dollars in thousands,
            except per share amounts)
             
             
             Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 

            Total investment income

             $37,179 $41,308 $42,608 $43,493 

            Net investment income

             $23,491 $27,201 $27,861 $28,520 

            Net increase in net assets resulting from operations

             $35,424 $40,802 $20,668 $7,543 

            Net investment income per share-basic and diluted

             $0.51 $0.55 $0.56 $0.57 

            Net increase in net assets resulting from operations per share-basic and diluted

             $0.77 $0.82 $0.41 $0.15 

            NOTE O — M—RELATED PARTY TRANSACTIONS

            As discussed further in Note D, the External Investment Manager is treated as a wholly owned portfolio company of MSCC and is included as part of Main Street'sStreet’s Investment Portfolio. At December 31, 2017,2021, Main Street had a receivable of approximately $2.9$5.6 million due from the External Investment Manager, which included (i) approximately $2.0$3.3 million related primarily to operating expenses incurred by MSCC or its subsidiaries as required to support the External Investment Manager'sManager’s business and amounts due from the External Investment Manager to Main Street under a tax sharing agreement (see further discussion in Note D) and (ii) approximately $0.9$2.3 million of dividends declared but not paid by the External Investment Manager. MSCC has entered into an agreement with the External Investment Manager to share employees in connection with its asset management business generally, and specifically for the External Investment Manager’s relationship with MSC Income and its other clients (see further discussion in Note A.1 and Note D).

            From time to time, Main Street may make investments in clients of the External Investment Manager in the form of debt or equity capital on terms approved by Main Street’s Board of Directors. In January 2021, Main Street entered into a Term Loan Agreement with MSC Income (the “Term Loan Agreement”). The Term Loan Agreement was unanimously approved by Main Street’s Board, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act, and the board of directors of MSC Income, including each director who is not an “interested person” of MSC Income or the External Investment Manager. The Term Loan Agreement initially provided for a term loan of $40.0 million to MSC Income, bearing interest at a fixed rate of 5.00% per annum, and maturing in January 2026. The Term Loan Agreement was amended in July 2021 to provide for borrowings up to an additional $35.0 million, $20.0 million of which was funded upon signing of the amendment and $15.0 million available in two additional advances during the six months following the amendment date. Borrowings under the Term Loan Agreement are expressly subordinated and junior in right of payment to all secured indebtedness of MSC Income. In

            171


            October 2021, MSC Income fully repaid all borrowings outstanding under the Term Loan Agreement and the Term Loan Agreement was terminated.

            In December 2020, the External Investment Manager entered into an Investment Management Agreement with the Private Loan Fund to provide investment advisory and management services in exchange for an asset-based fee and certain incentive fees. The Private Loan Fund is a private investment fund exempt from registration under the 1940 Act that co-invests with Main Street in Main Street’s Private Loan investment strategy. In connection with the Private Loan Fund’s initial closing in December 2020, Main Street committed to contribute up to $10.0 million as a limited partner and will be entitled to distributions on such interest. In addition, certain of Main Street’s officers and employees (and certain of their immediate family members) have made capital commitments to the Private Loan Fund as limited partners and therefore have direct pecuniary interests in the Private Loan Fund. As of December 31, 2021, Main Street has funded approximately $2.5 million of its limited partner commitment and Main Street’s unfunded commitment was approximately $7.5 million. In February 2022, Main Street increased its commitment to the Private Loan Fund from $10.0 million to $15.0 million. Main Street’s limited partner commitment to the Private Loan Fund was unanimously approved by the Board, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act.

            Additionally, Main Street provided the Private Loan Fund with a revolving line of credit pursuant to an Unsecured Revolving Promissory Note, dated February 5, 2021 and as amended November 30, 2021 and December 29, 2021 (as amended, the “Private Loan Fund Loan”), in an aggregate amount equal to the amount of limited partner capital commitments to the Private Loan Fund up to $85.0 million. Borrowings under the Private Loan Fund Loan bore interest at a fixed rate of 5.00% per annum and matured on February 28, 2022. The Private Loan Fund Loan was unanimously approved by Main Street’s Board, including each director who is not an “interested person,” as such term is defined in Section 2(a)(19) of the 1940 Act. As of December 31, 2021, there were $63.2 million of borrowings outstanding under the Private Loan Fund Loan. In February 2022, the Private Loan Fund fully repaid all borrowings outstanding under the Private Loan Fund Loan and the Private Loan Fund Loan was terminated.

            In November 2015, Main Street'sStreet’s Board of Directors approved and adopted the Main Street Capital Corporation Deferred Compensation Plan (the "2015“2015 Deferred Compensation Plan"Plan”). The 2015 Deferred Compensation Plan became effective on January 1, 2016 and replaced the Deferred Compensation Plan for Non-Employee Directors previously adopted by the Board of Directors in June 2013 (the "2013“2013 Deferred Compensation Plan"Plan”). Under the 2015 Deferred Compensation Plan, non-employee directors and certain key employees may defer receipt of some or all of their cash compensation and directors'directors’ fees, subject to certain limitations. Individuals participating in the 2015 Deferred Compensation Plan receive distributions of their respective balances based on predetermined payout schedules or other events as defined by the plan and are also able to direct investments made on their behalf among investment alternatives permitted from time to time under the plan, including phantom Main Street stock units. As of December 31, 2017, $4.02021, $15.8 million of compensation and directors' feesdividend reinvestments, plus net unrealized gains and losses and investment income and minus distributions had been deferred under the 2015 Deferred Compensation Plan (including amounts previously deferred under the 2013 Deferred Compensation Plan).  Of this amount, $2.5$7.3 million washad been deferred into phantom Main Street stock units, representing 74,487162,040 shares of Main Street's common stock. Including phantom stock units issued through dividend reinvestment, the phantom stock units outstanding as of December 31, 2017 represented 89,040 shares of Main Street'sStreet’s common stock. Any amounts deferred under the plan represented by phantom Main Street stock units will not be issued or included as outstanding on the consolidated statements of changes in net assets until such shares are actually distributed to the


            Table of Contents


            MAIN STREET CAPITAL CORPORATION

            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

            participant in accordance with the plan, but the related phantom stock units are included in operating expenses and weighted-average shares outstanding with the related dollar amount of the deferral included in total expenses in Main Street'sStreet’s consolidated statements of operations as earned. The dividend amounts related to additional phantom stock units are included in the statements of changes in net assets as an increase to dividends to stockholders offset by a corresponding increase to additional paid-in capital.

            NOTE P — N—SUBSEQUENT EVENTS

                   During January 2018,In February 2022, Main Street madedeclared a new portfolio investmentsupplemental cash dividend of $0.075 per share payable in March 2022. This supplemental cash dividend is in addition to facilitate the minority recapitalization of Brewer Crane, LLC ("Brewer"), a leading Southern California full-service crane rental service provider.previously announced regular monthly cash dividends that Main Street along with a co-investor, partnered with Brewer's founderdeclared for the first quarter of 2022 of $0.215 per share for each of January, February and Chief Executive Officer to facilitate the transaction, with Main Street funding $14.2 million in a combinationMarch 2022.

            172


                   In February 2018, Main Street fully exited its debt and equity investments in SoftTouch Medical Holdings, LLC ("SoftTouch"), a leading provider of home medical equipment and services, serving pediatric patients across the states of Georgia and Alabama. SoftTouch provides a broad array of medical equipment and services to chronically ill youth through its diverse product offerings, including respiratory therapy, enteral feeding, phototherapy, ventilators, amongst others. Main Street realized a gain of approximately $5.2 million on the exit of its equity investment in SoftTouch.

                   In February 2018, Main Street made a new portfolio investment to facilitate the management led buyout of DMS Holdco, LLC. ("DMS"), a leading provider of omni-channel direct marketing services. Main Street, along with a co-investor, partnered with the DMS' management team to facilitate the transaction, with Main Street funding $27.2 million in a combination of first-lien, senior secured term debt and a direct equity investment. Headquartered in Portland, Oregon, and founded in 1982, DMS develops and executes end-to-end, omni-channel direct marketing services including strategy, creative design, direct mail production/fulfillment, and digital marketing to various end markets including the FinTech, banking, telecom and technology industries.

            During February 2018,2022, Main Street declared regular monthly dividends of $0.190$0.215 per share for each month of April, May and June 2018.2022. These regular monthly dividends equal a total of $0.570$0.645 per share for the second quarter of 2018. The second quarter 2018 regular monthly dividends represent2022, representing a 2.7%4.9% increase from the regular monthly dividends declared for the second quarter of 2017.2021. Including the supplemental dividends declared for March 2022 and the regular monthly dividends declared for the first quarter and second quarter of 2018,2022, Main Street will have paid $22.530$33.540 per share in cumulative dividends since its October 2007 initial public offering.

            On February 23, 2022, Main Street’s Board of Directors unanimously approved the application to the Company of the 150% minimum asset coverage ratio set forth in Section 61(a)(2) of the 1940 Act. As a result, the minimum asset coverage ratio applicable to the Company will be reduced from 200% to 150%, effective as of February 23, 2023, unless approved earlier by a vote of Main Street’s stockholders, in which case the 150% minimum asset coverage ratio will be effective on the day after such approval. The Main Street Board also authorized the submission of a proposal for stockholders to accelerate the application of the 150% minimum asset coverage ratio to the Company at Main Street’s 2022 Annual Meeting of Stockholders.


            173


            Report of Independent Registered Public Accounting Firm

            Board of Directors and Stockholders'
            Stockholders

            Main Street Capital Corporation

            Opinion on financial statement schedule

            We have audited in accordance with the standards of the Public Company Accounting Oversight Board (United States) ("PCAOB"(“PCAOB”) the consolidated financial statements of Main Street Capital Corporation and subsidiaries (the "Company"“Company”) referred to in our report dated February 23, 2018,25, 2022, which is included in the annual report on the Form 10-K. Our audits of the consolidated financial statements also included the audit of the consolidated financial statement schedule for the years ended December 31, 2021 and 2020, listed in the index appearing under Item 15(2). In our opinion, this consolidated financial statement schedule, when considered in relation to the consolidated financial statements as a whole, presentspresent fairly, in all material respects, the information set forth therein.

            Basis for opinion

            This consolidated financial statement schedule is the responsibility of the Company'sCompany’s management. Our responsibility is to express an opinion on the Company'sCompany’s consolidated financial statement schedule based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

            /s/ GRANT THORNTON LLP

            Houston, Texas

            February 23, 2018


            25, 2022

            174


            Schedule 12-14

            MAIN STREET CAPITAL CORPORATION

            Consolidated Schedule of Investments in and Advances to Affiliates
            December 31, 2017
            (dollars in thousands)

            Company
             
            Investment(1)
             Amount of
            Realized
            Gain/(Loss)
             Amount of
            Unrealized
            Gain/(Loss)
             Amount of
            Interest,
            Fees or
            Dividends
            Credited to
            Income(2)
             December 31,
            2016
            Fair Value
             Gross
            Additions(3)
             Gross
            Reductions(4)
             December 31,
            2017
            Fair Value
             

            Majority-owned investments

                                    

                                    

            2717 MH, L.P.

             LP Interests $ $ $ $ $536 $ $536 

            Café Brazil, LLC

             Member Units    (1,140) 179  6,040    1,140  4,900 

            Clad-Rex Steel, LLC

             LIBOR Plus 9.50% (Floor 1.00)    112  1,542  14,337  143  1,200  13,280 

             Member Units    2,220  520  7,280  2,220    9,500 

             10% Secured Debt    12  119  1,190  12  19  1,183 

             Member Units    70    210  70    280 

            CMS Minerals Investments

             Preferred Member Units  1,405  (1,578) 96  3,682    3,682   

             Member Units    (600) 212  3,381    989  2,392 

            Gamber-Johnson Holdings, LLC

             LIBOR Plus 11.00% (Floor 1.00%)    187  2,988  23,846  235  681  23,400 

             Member Units    4,450  592  18,920  4,450    23,370 

            GRT Rubber Technologies LLC

             LIBOR Plus 9.00% (Floor 1.00%)    (34) 1,314  13,274  34  1,705  11,603 

             Member Units    1,660  746  20,310  1,660    21,970 

            Harborside Holdings, LLC

             Member Units    3,194      9,400    9,400 

            Hydratec, Inc.

             Common Stock    (640) 1,631  15,640    640  15,000 

            IDX Broker, LLC

             11.5% Secured Debt    88  1,316  10,950  5,500  1,200  15,250 

             Preferred Member Units    4,274  136  7,040  4,620    11,660 

            Jensen Jewelers of Idaho, LLC

             Prime Plus 6.75% (Floor 2.00%)    (20) 451  4,055  520  620  3,955 

             Member Units    640  207  4,460  640    5,100 

            Lamb Ventures, LLC

             11% Secured Debt    52  994  7,657  2,850  565  9,942 

             Preferred Equity        400      400 

             Member Units    800  40  5,990  800    6,790 

             9.5% Secured Debt    4  65  1,170  432  1,170  432 

             Member Units    (820) 845  1,340    820  520 

            Lighting Unlimited, LLC

             8% Secured Debt      29  1,514    1,514   

             Preferred Equity  (434) 24    410  24  434   

             Warrants  (54) 54      54  54   

             Member Units  (100) 100      100  100   

            Mid-Columbia Lumber

             10% Secured Debt      176  1,750  593  953  1,390 

            Products, LLC

             12% Secured Debt      477  3,900    37  3,863 

             Member Units    (1,500) 6  2,480  595  1,500  1,575 

             9.5% Secured Debt      78  836    45  791 

             Member Units    150  72  600  690    1,290 

            MSC Adviser I, LLC

             Member Units    11,151  3,032  30,617  11,151    41,768 

            Mystic Logistics Holdings, LLC

             12% Secured Debt    (124) 1,073  9,176  52  1,532  7,696 

             Common Stock    1,040    5,780  1,040    6,820 

            NRP Jones, LLC

             12% Secured Debt      4,117  13,915  7,821  15,360  6,376 

             Warrants    687    130  687  817   

             Member Units    2,023  18  410  2,840    3,250 

            PPL RVs, Inc.

             LIBOR Plus 7.00% (Floor 0.50%)    128  1,473  17,826  174  1,900  16,100 

             Common Stock    660  80  11,780  660    12,440 

            Principle Environmental, LLC

             13% Secured Debt    131  998  7,438  39    7,477 

            (d/b.a TruHorizon

             Preferred Member Units  (63) 6,183    5,370  6,183  63  11,490 

            Environmental Solutions)

             Warrants    380    270  380    650 

            Quality Lease Service, LLC

             Zero Coupon Secured Debt    (391) 273  7,068  273  391  6,950 

             Member Units        3,188  1,750    4,938 

            The MPI Group, LLC

             9% Secured Debt    (513) 268  2,922  1  513  2,410 

             Series A Preferred Units               

             Warrants               

             Member Units    90  92  2,300  89    2,389 

            Uvalco Supply, LLC

             9% Secured Debt      54  872    524  348 

             Member Units  69  (496) 235  4,640    760  3,880 

            Table of Contents

            Company
             
            Investment(1)
             Amount of
            Realized
            Gain/(Loss)
             Amount of
            Unrealized
            Gain/(Loss)
             Amount of
            Interest,
            Fees or
            Dividends
            Credited to
            Income(2)
             December 31,
            2016
            Fair Value
             Gross
            Additions(3)
             Gross
            Reductions(4)
             December 31,
            2017
            Fair Value
             

            Vision Interests, Inc.

             13% Secured Debt      382  2,814    17  2,797 

             Series A Preferred Stock        3,000      3,000 

             Common Stock               

            Ziegler's NYPD, LLC

             6.5% Secured Debt      68  994  2    996 

             12% Secured Debt      37  300      300 

             14% Secured Debt      390  2,750      2,750 

             Warrants    (240)   240    240   

             Preferred Member Units    (880)   4,100    880  3,220 

            Other controlled investments

                                    

                                    

            Access Media Holdings, LLC

             5% Current/5% PIK Secured Debt    (3,714) 2,379  19,700  1,164  3,714  17,150 

             Preferred Member Units    (1,908)   240  1,668  1,908   

             Member Units               

            Ameritech College Operations, LLC

             13% Secured Debt      96  1,003    1,003   

             13% Secured Debt      285  3,025    3,025   

             Preferred Member Units  (3,321)   198  2,291  3,900  6,191   

            ASC Interests, LLC

             11% Secured Debt    (16) 232  2,100  11  316  1,795 

             Member Units    (1,150) (12) 2,680    1,150  1,530 

            ATS Workholding, LLC

             5% Secured Debt      36    3,249    3,249 

             Preferred Member Units          3,726    3,726 

            Bond-Coat, Inc.

             12% Secured Debt    (40) 1,450  11,596  40  40  11,596 

             Common Stock    2,710    6,660  2,710    9,370 

            CBT Nuggets, LLC

             Member Units    34,080  9,439  55,480  34,080    89,560 

            Charps, LLC

             12% Secured Debt      2,371    19,025  800  18,225 

             Preferred Member Units    250      650    650 

            Copper Trail Energy Fund I, LP

             LP Interests          2,500    2,500 

            Datacom, LLC

             8% Secured Debt      101  900  945  270  1,575 

             5.25% Current / 5.25% PIK Secured Debt    (599) 1,296  11,049  660  599  11,110 

             Class A Preferred Member Units    (638)   1,368    638  730 

             Class B Preferred Member Units    (1,529)   1,529    1,529   

            Garreco, LLC

             LIBOR Plus 10.00% (Floor 1.00%)      702  5,219  991  767  5,443 

             Member Units    790    1,150  790    1,940 

            Gulf Manufacturing, LLC

             9% PIK Secured Debt      51  777    777   

             Member Units    1,290  437  8,770  1,290    10,060 

            Gulf Publishing Holdings, LLC

             LIBOR Plus 9.50% (Floor 1.00%)      5    80    80 

             12.5% Secured Debt      1,557  9,911  2,792    12,703 

             Member Units    1,159  40  3,124  1,716    4,840 

            Harrison Hydra-Gen, Ltd.

             Common Stock    460    3,120  460    3,580 

            Hawthorne Customs and Dispatch

             Member Units  (159) 309    280  309  589   

            Services, LLC

             Member Units  632  (825) 127  2,040    2,040   

            HW Temps LLC

             LIBOR Plus 11.00% (Floor 1.00%)      1,430  10,500  18  600  9,918 

             Preferred Member Units      140  3,940      3,940 

            Indianapolis Aviation Partners, LLC

             15% Secured Debt      292  3,100    3,100   

             Warrants  2,384  (1,520)   2,649    2,649   

            KBK Industries, LLC

             10% Secured Debt    3  100  1,250  100  975  375 

             12.5% Secured Debt    33  788  5,889  11    5,900 

             Member Units    1,197  183  2,780  1,640    4,420 

            Marine Shelters Holdings, LLC

             12% PIK Secured Debt    (2,551)   9,387    9,387   

             Preferred Member Units  (100)       100  100   

            Market Force Information, LLC

             LIBOR Plus 11.00% (Floor 1.00%)      1,541    23,815  672  23,143 

             Member Units          14,700    14,700 

            MH Corbin Holding LLC

             13% Secured Debt      2,030  13,197  29  700  12,526 

             Preferred Member Units      140  6,000      6,000 

            NAPCO Precast, LLC

             LIBOR Plus 8.50%    36  917    11,475    11,475 

             Prime Plus 2.00% (Floor 7.00%)    (20) 122  2,713  20  2,733   

             18% Secured Debt    (30) 327  3,952  30  3,982   

             Member Units    750  393  10,920  750    11,670 

            NRI Clinical Research, LLC

             LIBOR Plus 6.50% (Floor 1.50%)      36  200  200    400 

             14% Secured Debt    (33) 650  4,261  33  429  3,865 

             Warrants    (180)   680    180  500 

             Member Units    38    2,462  360  322  2,500 

            NuStep, LLC

             12% Secured Debt      2,646    20,420    20,420 

             Preferred Member Units          10,200    10,200 

            OMi Holdings, Inc.

             Common Stock    1,030  1,081  13,080  1,030    14,110 

            Table of Contents

            Company
             
            Investment(1)
             Amount of
            Realized
            Gain/(Loss)
             Amount of
            Unrealized
            Gain/(Loss)
             Amount of
            Interest,
            Fees or
            Dividends
            Credited to
            Income(2)
             December 31,
            2016
            Fair Value
             Gross
            Additions(3)
             Gross
            Reductions(4)
             December 31,
            2017
            Fair Value
             

            Pegasus Research Group, LLC

             Member Units    1,690  157  8,620  1,690    10,310 

            River Aggregates, LLC

             Zero Coupon Secured Debt      80  627  80    707 

             Member Units    10    4,600  10    4,610 

             Member Units    50    2,510  49    2,559 

            SoftTouch Medical Holdings LLC

             LIBOR Plus 9.00% (Floor 1.00%)    (15) 748  7,140  15  15  7,140 

             Member Units    920  969  9,170  919    10,089 

            Other

                                    

            Amounts related to investments transferred to or from other 1940 Act classification during the period

                    (219) (9,919)      

               $259 $63,625 $62,762 $594,282 $239,770 $93,265 $750,706 

            Table of Contents

            Company
             
            Investment(1)
             Amount of
            Realized
            Gain/(Loss)
             Amount of
            Unrealized
            Gain/(Loss)
             Amount of
            Interest,
            Fee or
            Dividends
            Credited to
            Income(2)
             December 31,
            2016
            Fair Value
             Gross
            Additions(3)
             Gross
            Reductions(4)
             December 31,
            2017
            Fair Value
             

            Affiliate Investments

                                    

                                    

            AFG Capital Group, LLC

             Warrants $ $840 $ $670 $190 $ $860 

             Member Units    190  34  2,750  840    3,590 

            Barfly Ventures, LLC

             12% Secured Debt    176  1,005  5,827  2,888    8,715 

             Options    430    490  430    920 

             Warrants    240    280  240    520 

            BBB Tank Services, LLC

             LIBOR Plus 8.00% (Floor 1.00%)      84  797  861  880  778 

             15% Secured Debt      623  3,991    115  3,876 

             Member Units    (300)   800    300  500 

            Boccella Precast Products LLC

             LIBOR Plus 10.0% (Floor 1.00%)    170  1,203    16,400    16,400 

             Member Units    1,280  37    3,440    3,440 

            Boss Industries, LLC

             Preferred Member Units    1,476  193  2,800  1,667  537  3,930 

            Bridge Capital Solutions Corporation

             13% Secured Debt      1,262  5,610  274    5,884 

             Warrants    151    3,370  150    3,520 

             13% Secured Debt    (2) 133  1,000  2  2  1,000 

             Preferred Member Units      100  1,000      1,000 

            Buca C, LLC

             LIBOR Plus 7.25% (Floor 1.00%)    (167) 1,891  22,671  56  2,534  20,193 

             Preferred Member Units    (728) 240  4,660  240  728  4,172 

            CAI Software LLC

             12% Secured Debt      456  3,683  800  400  4,083 

             Member Units    750  87  2,480  750    3,230 

            Chandler Signs Holdings, LLC

             12% Secured Debt    (7) 555  4,500  7  7  4,500 

             Class A Units    (590) 13  3,240    590  2,650 

            Condit Exhibits, LLC

             Member Units    110  41  1,840  110    1,950 

            Congruent Credit Opportunities

             LP Interests (Fund II)    (3) 2  1,518    3  1,515 

            Funds

             LP Interests (Fund III)    336  1,555  16,181  2,451    18,632 

            Daseke, Inc.

             12% Current / 2.5% PIK Secured Debt    (167) 676  21,799  255  22,054   

             Common Stock  22,859  (18,849)   24,063    24,063   

            Dos Rios Partners

             LP Interests (Dos Rios Partners, LP)    2,240    4,925  2,240    7,165 

             LP Interests (Dos Rios Partners — A, LP)    445    1,444  445    1,889 

            Dos Rios Stone Products LLC

             Class A Units    (280) 23  2,070    280  1,790 

            East Teak Fine Hardwoods, Inc.

             Common Stock    (230) 66  860    230  630 

            East West Copolymer &

             12% Current/2% PIK Secured Debt  (3,626) 961    8,630  961  9,591   

            Rubber, LLC

             Warrants  (50) 50      50  50   

            EIG Fund Investments

             LP Interests (EIG Global Private Debt fund-A, L.P.)  71  (48) 90  2,804  1,160  2,909  1,055 

             LP Interests (EIG Traverse Co-Investment, L.P.)    (100) 1,534  9,905    9,905   

            Freeport Financial Fund Investments

             LP Interests (Freeport Financial SBIC Fund LP)    (6) 408  5,620    6  5,614 

             LP Interests (Freeport First Lien Loan Fund III LP)    (52) 688  4,763  3,795  52  8,506 

            Gault Financial, LLC (RMB

             10.5% Current Secured Debt    1,016  1,302  11,079  1,016  563  11,532 

            Capital, LLC)

             Warrants               

            Glowpoint, Inc.

             12% Secured Debt  (6,450) 4,951  685  3,997  5,003  9,000   

             Common Stock  (3,974) 1,878    2,080  1,878  3,958   

            Guerdon Modular Holdings, Inc.

             13% Secured Debt      1,450  10,594  38    10,632 

             Preferred Stock    (1,140)   1,140    1,140   

             Common Stock    (80)   80    80   

            Hawk Ridge Systems, LLC

             11% Secured Debt    125  1,229  9,901  4,899  500  14,300 

             Preferred Member Units    950  320  2,850  950    3,800 

             Preferred Member Units    50  6  150  50    200 

            Houston Plating and Coatings, LLC

             8% Unsecured Convertible Debt    200  165    3,200    3,200 

             Member Units    1,390  5  4,000  2,140    6,140 

            HPEP 3, L.P.

             LP Interests          1,343  400  943 

            I-45 SLF LLC

             Member Units    255  2,881  14,586  2,255    16,841 

            Indianhead Pipeline Services, LLC

             12% Secured Debt      947  5,079  562  5,641   

             Preferred Member Units    (338) 514  2,677  514  3,191   

             Warrants  134  459      459  459   

             Member Units  272  1      1  1   

            L.F. Manufacturing Holdings, LLC

             Member Units    620    1,380  620    2,000 

            Meisler Operating LLC

             LIBOR Plus 8.50% (Floor 1.00%)      1,249    16,633    16,633 

             Member Units    190      3,390    3,390 

            Table of Contents

            Company
             
            Investment(1)
             Amount of
            Realized
            Gain/(Loss)
             Amount of
            Unrealized
            Gain/(Loss)
             Amount of
            Interest,
            Fee or
            Dividends
            Credited to
            Income(2)
             December 31,
            2016
            Fair Value
             Gross
            Additions(3)
             Gross
            Reductions(4)
             December 31,
            2017
            Fair Value
             

            OnAsset Intelligence, Inc.

             12% PIK Secured Debt  (29)   576  4,519  575    5,094 

             10% PIK Secured Debt      3    48    48 

             Preferred Stock               

             Warrants               

            OPI International Ltd.

             10% Unsecured Debt  (86) (473) 16  473    473   

             Common Stock    (1,600)   1,600    1,600   

            PCI Holding Company, Inc.

             12% Secured Debt    (102) 1,922  13,000  345  752  12,593 

             Preferred Stock    (5,028) 548  5,370  548  5,028  890 

             Preferred Stock    870      2,610    2,610 

            Rocaceia, LLC (Quality Lease and

             12% Secured Debt        250      250 

            Rental Holdings, LLC)

             Preferred Member Units               

            Tin Roof Acquisition Company

             12% Secured Debt      1,656  13,385  66  729  12,722 

             Class C Preferred Stock      288  2,738  289    3,027 

            UniTek Global Services, Inc.

             LIBOR Plus 8.50% (Floor 1.00%)    (5) 722  5,021  3,519  5  8,535 

             LIBOR Plus 7.50% (Floor 1.00%)      9  824  3  690  137 

             15% PIK Unsecured Debt      129  745  120    865 

             Preferred Stock    (637) 1,547  6,410  1,547  637  7,320 

             Preferred Stock    (8) 339    2,858  8  2,850 

             Common Stock    (520)   3,010    520  2,490 

            Universal Wellhead Services

             Preferred Member Units    109    720  110    830 

            Holdings, LLC

             Member Units    1,300    610  1,300    1,910 

            Valley Healthcare Group, LLC

             LIBOR Plus 12.50% (Floor 0.50%)      1,728  12,844  31  1,190  11,685 

             Preferred Member Units        1,600      1,600 

            Volusion, LLC

             11.5% Secured Debt      2,659  15,298  668  766  15,200 

             Preferred Member Units        14,000      14,000 

             Warrants    (496)   2,576    496  2,080 

            Other

                                    

            Amounts related to investments transferred to or from other 1940 Act classification during the period

                (1,077) (3,582) 1,615  24,321       

               $8,044 $(11,329)$37,509 $375,948 $100,290 $113,063 $338,854 

            Total Non-Control/Non-Affiliate investments

               $7,879 $(9,751)$105,470             

            Total Portfolio Investments

               $16,182 $42,545 $205,741             

              This schedule should be read in conjunction with Main Street's consolidated financial statements, including the consolidated schedule of investments and notes to the consolidated financial statements.

            (1)
            The principal amount, the ownership detail for equity investments and if the investment is income producing is included in the consolidated schedule of investments.

            (2)
            Represents the total amount of interest, fees and dividends credited to income for the portion of the period for which an investment was included in Control or Affiliate categories, respectively. For investments transferred between Control and Affiliate categories during the period, any income or investment balances related to the time period it was in the category other than the one shown at period end is included in "Amounts from investments transferred from other 1940 Act classifications during the period."

            (3)
            Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments and accrued PIK interest, and the exchange of one or more existing securities for one or more new securities. Gross additions also include net increases in unrealized appreciation or net decreases in net unrealized depreciation as well as the movement of an existing portfolio company into this category and out of a different category.

            (4)
            Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also include net increases in net unrealized depreciation or net decreases in unrealized appreciation as well as the movement of an existing portfolio company out of this category and into a different category.

            Table of Contents

            Schedule 12-14

            MAIN STREET CAPITAL CORPORATION

            Consolidated Schedule of Investments In and Advances to Affiliates

            December 31, 2016
            2021

            (dollarsdollars in thousands)

            Amount of

            Interest,

            Fees or

            Amount of

            Amount of

            Dividends

            December 31, 

            December 31, 

            Realized

            Unrealized

            Credited to

            2020

            Gross

            Gross

            2021

            Company
             
            Investment(1)
             Amount of
            Realized
            Gain/(Loss)
             Amount of
            Unrealized
            Gain/(Loss)
             Amount of
            Interest,
            Fees or
            Dividends
            Credited to
            Income(2)
             December 31,
            2015
            Fair Value
             Gross
            Additions(3)
             Gross
            Reductions(4)
             December 31,
            2016
            Fair Value
             

                

            Investment(1)(10)(11)

                

            Geography

                

            Gain/(Loss)

                

            Gain/(Loss)

                

            Income(2)

                

            Fair Value

                

            Additions(3)

                

            Reductions(4)

                

            Fair Value

            Control Investments

                            

              

            Majority-owned investments

                            

              

            Majorityowned investments

              

              

              

              

              

              

              

              

              

            ASK (Analytical Systems Keco Holdings, LLC)

            12.00% (L+10.00%, Floor 2.00%) Secured Debt

            (8)

            $

            -

            $

            -

            $

            691

            $

            4,873

            $

            153

            $

            290

            $

            4,736

            Preferred Member Units

            (8)

            -

            (733)

            -

            3,200

            4,894

            3,200

            4,894

            Warrants

            (8)

            -

            (10)

            -

            10

            -

            10

            -

            Brewer Crane Holdings, LLC

            11.00% (L+10.00%, Floor 1.00%) Secured Debt

            (9)

            -

            -

            940

            8,513

            20

            496

             

            8,037

            Preferred Member Units

            (9)

            -

            1,860

            927

            5,850

            1,860

            -

             

            7,710

            Café Brazil, LLC

             Member Units $ $(1,290)$429 $7,330 $ $1,290 $6,040 

            Member Units

            (8)

            -

            540

            1,012

            2,030

            540

            -

             

            2,570

            California Splendor Holdings LLC

            11.00% (L+10.00%, Floor 1.00%) Secured Debt

            (9)

            -

            36

            3,381

            35,833

            211

            8,129

             

            27,915

            Preferred Member Units

            (9)

            -

            7,034

            1,505

            14,496

            8,289

            -

             

            22,785

            Clad-Rex Steel, LLC

             LIBOR Plus 9.50%   5  396  396 

            10.00% Secured Debt

            (5)

            -

            -

            110

            1,100

            -

            29

             

            1,071

             LIBOR Plus 9.50%   192  13,941  13,941 

             Member Units     7,280  7,280 

             10% Secured Debt   4  1,190  1,190 

             Member Units     210  210 

            10.50% (L+9.50%, Floor 1.00%) Secured Debt

            (5)

            -

            -

            1,167

            10,853

            (52)

            400

             

            10,401

            Member Units

            (5)

            -

            1,640

            2,391

            9,140

            1,640

            -

             

            10,780

            CMS Minerals Investments

             Member Units  (448) 178  4,083 702 3,381 

            Member Units

            (9)

            -

            691

            50

            1,624

            691

            341

             

            1,974

             Preferred Member Units  (2,369) 1,239 6,914  3,232 3,682 

            Cody Pools, Inc.

            12.25% (L+10.50%, Floor 1.75%) Secured Debt

            (8)

            -

            242

            2,357

            14,216

            32,737

            4,469

            42,484

            Preferred Member Units

            (8)

            -

            32,700

            3,100

            14,940

            32,700

            -

            47,640

            CompareNetworks Topco, LLC

            10.00% (L+9.00%, Floor 1.00%) Secured Debt

            (9)

            -

            (18)

            777

            7,954

            18

            1,495

             

            6,477

            Preferred Member Units

            (9)

            -

            5,220

            474

            6,780

            5,220

            -

             

            12,000

            Datacom, LLC

            5.00% Secured Debt

            (8)

            -

            (628)

            793

            -

            8,404

            736

             

            7,668

            8.00% Secured Debt

            (8)

            (3,601)

            2,130

            1

            12,146

            2,130

            14,276

             

            -

            Preferred Member Units

            (8)

            (7,324)

            7,324

            -

            -

            9,934

            7,324

             

            2,610

            Direct Marketing Solutions, Inc.

            12.00% (L+11.00%, Floor 1.00%) Secured Debt

            (9)

            -

            137

            2,034

            15,006

            9,512

            470

             

            24,048

            Preferred Stock

            (9)

            -

            (1,030)

            672

            19,380

            -

            1,030

             

            18,350

            Gamber-Johnson Holdings, LLC

             LIBOR Plus 11.00% (Floor 1.00%)   1,551  23,846  23,846 

            9.50% (L+7.50%, Floor 2.00%) Secured Debt

            (5)

            -

            32

            2,019

            19,838

            1,761

            1

             

            21,598

             Member Units  4,076 404  18,920  18,920 

            Member Units

            (5)

            -

            (5,638)

            3,921

            52,490

            2,848

            5,638

             

            49,700

            GRT Rubber Technologies LLC

             LIBOR Plus 9.00% (Floor 1.00%)  86 1,465 15,988 134 2,848 13,274 

            8.10% (L+8.00%) Secured Debt

            (8)

            -

            213

            1,786

            16,775

            22,110

            -

             

            38,885

             Member Units  4,730 949 15,580 4,730  20,310 

            Hydratec, Inc.

             Common Stock  690 1,631 14,950 690  15,640 

            IDX Broker, LLC

             12.5% Secured Debt  (23) 1,460 11,350 23 423 10,950 

             Member Units  600 136 6,440 600  7,040 

            Member Units

            (8)

            -

            1,290

            4,264

            44,900

            1,290

            -

             

            46,190

            Jensen Jewelers of Idaho, LLC

             Prime Plus 6.75% (Floor 2.00%)  32 475 4,055 500 500 4,055 

            10.00% (Prime+6.75%, Floor 2.00%) Secured Debt

            (9)

            -

            (13)

            313

            3,400

            13

            863

             

            2,550

             Member Units  (290) 209 4,750  290 4,460 

            10.00% (Prime+6.75%, Floor 2.00%) Secured Debt

            (9)

            -

            -

            3

            -

            -

            -

             

            -

            Lamb Ventures, LLC

             LIBOR Plus 5.75%   7  351 351  

             11% Secured Debt   869 7,962  305 7,657 

             Preferred Equity    328 72  400 

             Member Units  1,300 90 4,690 1,300  5,990 

             9.5% Secured Debt   86 919 300 49 1,170 

             Member Units  100 362 1,240 100  1,340 

            Member Units

            (9)

            -

            4,800

            1,937

            7,620

            4,800

            -

             

            12,420

            Lighting Unlimited, LLC

             8% Secured Debt   123 1,514   1,514 

             Preferred Equity  (20)  430  20 410 

             Warrants  (40)  40  40  

             Member Units  (350) (81) 350  350  

            Kickhaefer Manufacturing Company, LLC

            11.50% Secured Debt

            (5)

            -

            -

            2,526

            22,269

            55

            2,000

             

            20,324

            9.00% Secured Debt

            (5)

            -

            -

            354

            3,909

            -

            33

             

            3,876

            Mid-Columbia Lumber

             10% Secured Debt   178 1,750   1,750 

            Products, LLC

             12% Secured Debt   476 3,900   3,900 

             Member Units  (666) 5 2,580 566 666 2,480 

             9.5% Secured Debt   83 881  45 836 

             Member Units  50 23 550 50  600 

            Member Units

            (5)

            -

            1,370

            92

            13,400

            1,370

            -

             

            14,770

            Market Force Information, LLC

            12.00% (L+11.00%, Floor 1.00%) Secured Debt

            (9)

            -

            -

            387

            1,600

            1,800

            -

             

            3,400

            12.00% PIK Secured Debt

            (9)

            -

            (4,626)

            -

            13,562

            -

            4,626

             

            8,936

            MH Corbin Holding LLC

            13.00% Secured Debt

            (5)

            -

            (2,059)

            1,137

            8,280

            34

            2,380

             

            5,934

            Preferred Member Units

            (5)

            -

            (2,370)

            -

            2,370

            -

            2,370

             

            -

            MSC Adviser I, LLC

             Member Units  3,345 2,829 27,272 3,345  30,617 

            Member Units

            (8)

            -

            23,638

            6,216

            116,760

            23,640

            -

             

            140,400

            Mystic Logistics Holdings, LLC

            12.00% Secured Debt

            (6)

            -

            1

            820

            6,723

            10

            355

             

            6,378

            Common Stock

            (6)

            -

            (150)

            1,271

            8,990

            -

            150

             

            8,840

            Mystic Logistics Holdings, LLC

             12% Secured Debt  (42) 1,184 9,448 42 314 9,176 

             Common Stock  (190)  5,970  190 5,780 

            NRP Jones, LLC

             6% Current / 6% PIK Secured Debt   1,921 12,948 967  13,915 

             Warrants  (320)  450  320 130 

             Member Units  (1,070)  1,480  1,070 410 

            OMi Holdings, Inc.

            12.00% Secured Debt

            (8)

            -

            169

            1,109

            -

            18,000

            -

             

            18,000

            Preferred Member Units

            (8)

            -

            (170)

            1,578

            20,380

            -

            170

             

            20,210

            PPL RVs, Inc.

             11.1% Secured Debt   913 9,710  9,710  

            7.50% (L+7.00%, Floor 0.50%) Secured Debt

            (8)

            -

            (25)

            957

            11,806

            801

            225

             

            12,382

             LIBOR Plus 7.00% (Floor 0.50%)   234  17,826  17,826 

             Common Stock  2,010 261 9,770 2,010  11,780 

            Common Stock

            (8)

            -

            2,860

            555

            11,500

            2,860

            -

             

            14,360

            Principle Environmental, LLC

             12% Secured Debt  (21) 516 4,060 21 21 4,060 

            13.00% Secured Debt

            (8)

            -

            (62)

            929

            6,397

            2,938

            2,062

             

            7,273

             12% Current / 2% PIK Secured Debt  (1) 473 3,310 69 1 3,378 

             Preferred Member Units  (690)  6,060  690 5,370 

             Warrants  (40)  310  40 270 

            Common Stock

            (8)

            -

            (490)

            -

            -

            1,200

            490

             

            710

            Preferred Member Units

            (8)

            -

            (449)

            -

            10,500

            1,109

            449

             

            11,160

            Warrants

            (8)

            -

            330

            -

            870

            330

            1,200

             

            -

            Quality Lease Service, LLC

             8% PIK Secured Debt   530 6,538 530  7,068 

            Member Units

            (7)

            -

            (461)

            -

            4,460

            -

            2,312

             

            2,148

             Member Units    2,638 550  3,188 

            Robbins Bros. Jewelry, Inc.

            12.00% (L+11.00%, Floor 1.00%) Secured Debt

            (9)

            -

            -

            621

            -

            35,956

            -

             

            35,956

            Preferred Equity

            (9)

            -

            -

            -

            -

            11,070

            -

             

            11,070

            Southern RV, LLC

             13% Secured Debt  (104) 157 11,400 104 11,504  

             Member Units 13,918 (13,420) 957 15,100  15,100  

             13% Secured Debt  (720) 45 3,250 30 3,280  

             Member Units 440 (30)  1,200  1,200  

            Trantech Radiator Topco, LLC

            12.00% Secured Debt

            (7)

            -

            49

            1,084

            8,644

            68

            -

            8,712

            Common Stock

            (7)

            -

            2,630

            116

            6,030

            2,630

            -

            8,660

            Ziegler’s NYPD, LLC

            12.00% Secured Debt

            (8)

            -

            -

            76

            625

            -

            -

            625

            14.00% Secured Debt

            (8)

            -

            -

            390

            2,750

            -

            -

            2,750

            6.50% Secured Debt

            (8)

            -

            21

            66

            979

            21

            -

            1,000

            Preferred Member Units

            (8)

            -

            350

            -

            1,780

            350

            -

            2,130

            Other controlled investments

            2717 MH, L.P.

            LP Interests (2717 HPP-MS, L.P.)

            (8)

            -

            -

            -

            250

            -

            250

            -


            175


            Table of Contents

            Company
             
            Investment(1)
             Amount of
            Realized
            Gain/(Loss)
             Amount of
            Unrealized
            Gain/(Loss)
             Amount of
            Interest,
            Fees or
            Dividends
            Credited to
            Income(2)
             December 31,
            2015
            Fair Value
             Gross
            Additions(3)
             Gross
            Reductions(4)
             December 31,
            2016
            Fair Value
             

            The MPI Group, LLC

             9% Secured Debt   269 2,921 1  2,922 

             Series A Preferred Units  (690)  690  690  

             Warrants        

             Member Units  70 129 2,230 70  2,300 
            ���

            Travis Acquisition LLC

             12% Secured Debt  (43) 340 3,513 43 3,556  

             Member Units 17,862 (7,380) 2,812 14,480  14,480  

            Uvalco Supply, LLC

             9% Secured Debt   97 1,314  442 872 

             Member Units  (820) 120 5,460  820 4,640 

            Vision Interests, Inc.

             13% Secured Debt   412 3,052 19 257 2,814 

             Series A Preferred Stock  (550)  3,550  550 3,000 

             Common Stock  (210)  210  210  

            Ziegler's NYPD, LLC

             6.5% Secured Debt   68 992 2  994 

             12% Secured Debt   46 500  200 300 

             14% Secured Debt   391 2,750   2,750 

             Warrants  190  50 190  240 

             Preferred Member Units  700  3,400 700  4,100 

            Other controlled investments

                            

              

            Access Media Holdings, LLC

             5.00% Current / 5.00% PIK Secured Debt  (1,790) 2,270 20,380 1,110 1,790 19,700 

             Preferred Member Units  (3,841)  2,000 2,081 3,841 240 

             Member Units        

            Ameritech College Operations, LLC

             10% Secured Debt   52 514   514 

             13% Secured Debt   315 3,025   3,025 

             13% Secured Debt   51 489   489 

             Preferred Member Units   (5) 2,291   2,291 

            LP Interests (2717 MH, L.P.)

            (8)

            -

            1,165

            -

            2,702

            1,269

            -

            3,971

            ASC Interests, LLC

             11% Secured Debt  (14) 271 2,500 14 414 2,100 

            13.00% Secured Debt

            (8)

            -

            -

            261

            1,715

            121

            -

            1,836

             Member Units  450 95 2,230 450  2,680 

            Member Units

            (8)

            -

            (400)

            -

            1,120

            -

            400

            720

            ATS Workholding, LLC

            5.00% Secured Debt

            (9)

            -

            (154)

            -

            3,347

            -

            342

            3,005

            Barfly Ventures, LLC

            7.00% Secured Debt

            (5)

            -

            -

            49

            343

            367

            -

            710

            Member Units

            (5)

            -

            346

            -

            1,584

            346

            -

            1,930

            Bolder Panther Group, LLC

            10.50% (L+9.00%, Floor 1.50%) Secured Debt

            (9)

            -

            313

            3,686

            27,225

            12,275

            500

            39,000

            Class A Preferred Member Units

            (9)

            -

            -

            1,427

            10,194

            -

            -

            10,194

            Class B Preferred Member Units

            (9)

            -

            9,170

            3,100

            14,000

            9,170

            -

            23,170

            Bond-Coat, Inc.

             12% Secured Debt  (35) 1,450 11,596 35 35 11,596 

            Common Stock

            (8)

            (2,320)

            4,310

            -

            2,040

            4,310

            6,350

            -

             Common Stock  (2,480)  9,140  2,480 6,660 

            Bridge Capital Solutions Corporation

            13.00% Secured Debt

            (6)

            -

            -

            1,705

            9,401

            412

            -

            9,813

            Preferred Member Units

            (6)

            -

            -

            100

            1,000

            -

            -

            1,000

            Warrants

            (6)

            -

            840

            -

            3,220

            840

            -

            4,060

            CBT Nuggets, LLC

             Member Units  13,360 7,425 42,120 13,360  55,480 

            Member Units

            (9)

            -

            4,540

            2,308

            46,080

            4,540

            -

            50,620

            Centre Technologies Holdings, LLC

            12.00% (L+10.00%, Floor 2.00%) Secured Debt

            (8)

            -

            (507)

            1,266

            11,549

            33

            2,718

            8,864

            Preferred Member Units

            (8)

            -

            (320)

            120

            6,160

            -

            320

            5,840

            Datacom, LLC

             8% Secured Debt   53  900  900 

             5.25% Current / 5.25% PIK Secured Debt  (450) 1,193 10,970 529 450 11,049 

             Class A Preferred Member Units  188  1,181 187  1,368 

             Class B Preferred Member Units  (3,550)  5,079  3,550 1,529 

            Chamberlin Holding LLC

            9.00% (L+8.00%, Floor 1.00%) Secured Debt

            (8)

            -

            2

            1,544

            15,212

            4,001

            1,396

            17,817

            Member Units

            (8)

            -

            (3,660)

            3,922

            29,340

            270

            3,930

            25,680

            Charps, LLC

            10.00% Unsecured Debt

            (5)

            -

            260

            1,007

            8,475

            559

            3,340

            5,694

            15.00%

            (5)

            -

            -

            4

            669

            -

            669

            -

            Preferred Member Units

            (5)

            -

            1,907

            4,839

            10,520

            3,470

            -

            13,990

            Colonial Electric Company LLC

            12.00% Secured Debt

            (6)

            -

            -

            2,705

            -

            24,981

            630

            24,351

            Preferred Member Units

            (6)

            -

            1,450

            1,480

            -

            9,130

            -

            9,130

            Copper Trail Energy Fund I, LP - CTMH

            LP Interests (CTMH, LP)

            (9)

            -

            -

            -

            747

            -

            37

            710

            Digital Products Holdings LLC

            11.00% (L+10.00%, Floor 1.00%) Secured Debt

            (5)

            -

            -

            1,978

            18,077

            44

            1,320

            16,801

            Preferred Member Units

            (5)

            -

            -

            200

            9,835

            -

            -

            9,835

            Garreco, LLC

             14% Secured Debt   838 5,739 30 550 5,219 

            9.00% (L+8.00%, Floor 1.00%, Ceiling 1.50%) Secured Debt

            (8)

            -

            -

            405

            4,519

            -

            323

            4,196

             Member Units  (120)  1,270  120 1,150 

            Member Units

            (8)

            -

            860

            300

            1,410

            860

            -

            2,270

            Gulf Manufacturing, LLC

             9% PIK Secured Debt   71 777   777 

            Member Units

            (8)

            -

            1,130

            2,109

            4,510

            1,130

            -

            5,640

             Member Units  (5,000) 51 13,770  5,000 8,770 

            Gulf Publishing Holdings, LLC

             12.5% Secured Debt   969  9,911  9,911 

            10.50% (5.25% Cash, 5.25% PIK) (L+9.50%, Floor 1.00%) Secured Debt

            (8)

            -

            -

            21

            250

            14

            7

            257

             Member Units   62  3,124  3,124 

            12.50% (6.25% Cash, 6.25% PIK) Secured Debt

            (8)

            -

            (2,757)

            1,282

            12,044

            849

            3,176

            9,717

            Harrison Hydra-Gen, Ltd.

             9% Secured Debt   9 5,010  5,010  

            Common Stock

            (8)

            -

            (1,920)

            -

            5,450

            -

            1,920

            3,530

             Preferred Stock   2 1,361 2 1,363  

             Common Stock  520 69 2,600 520  3,120 

            J&J Services, Inc.

            11.50% Secured Debt

            (7)

            -

            (103)

            1,264

            12,800

            103

            12,903

            -

            Preferred Stock

            (7)

            10,952

            (5,595)

            -

            12,680

            -

            12,680

            -

            Hawthorne Customs and Dispatch

             Member Units  (180)  460  180 280 

            Services, LLC

             Member Units  (180) 188 2,220  180 2,040 

            Johnson Downie Opco, LLC

            13.00% (L+11.50%, Floor 1.50%) Secured Debt

            (8)

            -

            -

            208

            -

            11,344

            -

            11,344

            Preferred Equity

            (8)

            -

            -

            -

            -

            3,150

            -

            3,150

            HW Temps LLC

             LIBOR Plus 13% (Floor 1.00%)   1,172 9,884 816 200 10,500 

             Preferred Member Units  (2) 389 3,942  2 3,940 

            KBK Industries, LLC

            Member Units

            (5)

            -

            420

            992

            13,200

            420

            -

            13,620

            MS Private Loan Fund

            5.00% Unsecured Debt

            (8)

            -

            -

            1,402

            -

            66,726

            3,575

            63,151

            LP Interests

            (8)

            -

            81

            -

            -

            2,581

            -

            2,581

            Indianapolis Aviation Partners, LLC

             15% Secured Debt  (5) 636 3,100 5 5 3,100 

             Warrants  109  2,540 109  2,649 

            MSC Income Fund Inc.

            5.00% Unsecured Debt

            (8)

            -

            -

            2,179

            -

            60,000

            60,000

            -

            NAPCO Precast, LLC

            Member Units

            (8)

            -

            (2,540)

            1,553

            16,100

            -

            2,540

            13,560

            Nebraska Vet AcquireCo, LLC (NVS)

            12.00% Secured Debt

            (5)

            -

            -

            1,466

            10,395

            4,846

            -

            15,241

            Preferred Member Units

            (5)

            -

            713

            -

            6,500

            1,200

            -

            7,700

            Marine Shelters Holdings, LLC

             12% PIK Secured Debt  (430) 895 8,870 947 430 9,387 

             Preferred Member Units  (4,881)  4,881  4,881  

            MH Corbin Holding LLC

             10% Secured Debt   1,409 13,869 28 700 13,197 

             Preferred Member Units   140 6,000   6,000 

            NAPCO Precast, LLC

             Prime Plus 2.00% (Floor 7.00%)  19 283 4,005  1,292 2,713 

             18% Secured Debt  28 794 4,924  972 3,952 

             Member Units  2,330 687 8,590 2,330  10,920 

            NexRev LLC

            11.00% Secured Debt

            (8)

            -

            (1,839)

            1,883

            16,727

            38

            2,720

            14,045

            Preferred Member Units

            (8)

            -

            1,220

            80

            1,470

            1,220

            -

            2,690

            NRI Clinical Research, LLC

             LIBOR Plus 6.50% (Floor 1.50%)   8  200  200 

            9.00% Secured Debt

            (9)

            -

            (48)

            380

            5,620

            48

            5,668

            -

             14% Secured Debt  33 683 4,539 78 356 4,261 

             Warrants  340  340 340  680 

             Member Units  1,120  1,342 1,120  2,462 

            Member Units

            (9)

            8,787

            (4,835)

            2,805

            5,600

            (749)

            4,851

            -

            OMi Holdings, Inc.

             Common Stock  (560) 480 13,640  560 13,080 

            Warrants

            (9)

            -

            (1,238)

            -

            1,490

            -

            1,490

            -

            NRP Jones, LLC

            12.00% Secured Debt

            (5)

            -

            -

            253

            2,080

            -

            -

            2,080

            Member Units

            (5)

            -

            3,619

            (45)

            2,821

            3,619

            -

            6,440

            NuStep, LLC

            11.00% Secured Debt

            (5)

            -

            4

            1,991

            17,193

            47

            -

            17,240

            7.50% (L+6.50%, Floor 1.00%) Secured Debt

            (5)

            -

            -

            58

            -

            2,120

            400

            1,720

            Preferred Member Units

            (5)

            -

            2,720

            -

            10,780

            2,720

            -

            13,500

            Orttech Holdings, LLC

            12.00% (L+11.00%, Floor 1.00%) Secured Debt

            (5)

            -

            -

            1,522

            -

            24,151

            -

            24,151

            Preferred Stock

            (5)

            -

            -

            130

            -

            12,600

            2,600

            10,000

            Pearl Meyer Topco LLC

            12.00% Secured Debt

            (6)

            -

            236

            4,259

            37,201

            311

            4,838

            32,674

            Member Units

            (6)

            -

            11,030

            3,599

            15,940

            11,030

            -

            26,970

            Pegasus Research Group, LLC

             Member Units  1,780 243 6,840 1,780  8,620 

            Member Units

            (8)

            -

            (1,550)

            -

            8,830

            -

            1,550

            7,280

            River Aggregates, LLC

            Member Units

            (8)

            -

            40

            125

            3,240

            40

            -

            3,280

            Tedder Industries, LLC

            12.00% Secured Debt

            (9)

            -

            -

            2,009

            16,301

            2,280

            2,400

            16,181

            Preferred Member Units

            (9)

            -

            -

            -

            8,136

            443

            -

            8,579

            UnionRock Energy Fund II, LP

            LP Interests

            (9)

            -

            2,295

            273

            2,894

            3,669

            440

            6,123

            Vision Interests, Inc.

            13.00% Secured Debt

            (9)

            -

            -

            244

            2,028

            -

            2,028

            -

            Series A Preferred Stock

            (9)

            -

            (160)

            -

            3,160

            -

            160

            3,000

            VVS Holdco LLC

            11.50% Secured Debt

            (5)

            -

            -

            913

            -

            30,100

            -

            30,100

            7.00% (L+6.00%, Floor 1.00%) Secured Debt

            (5)

            -

            -

            7

            -

            1,169

            -

            1,169

            Preferred Equity

            (5)

            -

            -

            -

            -

            11,840

            -

            11,840

            Other

            Amounts related to investments transferred to or from other 1940 Act classification during the period

            -

            -

            -

            -

            -

            -

            -

            Total Control investments

            $

            6,494

            $

            99,420

            $

            122,277

            $

            1,113,725

            $

            592,022

            $

            216,490

            $

            1,489,257

            Affiliate Investments

            AAC Holdings, Inc.

            18.00% (10.00% Cash, 8.00% PIK) Secured Debt

            (7)

            $

            -

            $

            (217)

            $

            1,817

            $

            9,187

            $

            1,095

            $

            488

            $

            9,794


            176


            Table of Contents

            Company
             
            Investment(1)
             Amount of
            Realized
            Gain/(Loss)
             Amount of
            Unrealized
            Gain/(Loss)
             Amount of
            Interest,
            Fees or
            Dividends
            Credited to
            Income(2)
             December 31,
            2015
            Fair Value
             Gross
            Additions(3)
             Gross
            Reductions(4)
             December 31,
            2016
            Fair Value
             

            River Aggregates, LLC

             Zero Coupon Secured Debt   71 556 71  627 

             Member Units  770 460 3,830 770  4,600 

             Member Units  150  2,360 150  2,510 

            Common Stock

            (7)

            -

            (1,069)

            -

            3,148

            -

            1,069

            2,079

            SoftTouch Medical Holdings LLC

             LIBOR Plus 9.00% (Floor 1.00%)  45 793 8,010 65 935 7,140 

             Member Units  3,460 397 5,710 3,460  9,170 

            Warrants

            (7)

            -

            (998)

            -

            2,938

            -

            998

            1,940

            Other

                            

            Amounts related to investments transferred to or from other 1940 Act classification during the period

                     

            AFG Capital Group, LLC

            10.00% Secured Debt

            (8)

            -

            -

            31

            491

            -

            347

            144

            Preferred Member Units

            (8)

            -

            1,930

            200

            5,810

            1,930

            -

            7,740

              $32,220 $(12,674)$52,221 $555,011 $150,323 $111,052 $594,282 

            ATX Networks Corp.

            10.00% PIK Unsecured Debt

            (6)

            -

            -

            -

            -

            1,963

            -

            1,963

            8.50% (L+7.50%, Floor 1.00%) Secured Debt

            (6)

            -

            -

            168

            -

            7,092

            -

            7,092

            8.75% (7.25% Cash, 1.50% PIK) (1.50% PIK + L+6.25%, Floor 1.00%) Secured Debt

            (6)

            (4,528)

            1,133

            -

            12,263

            1,521

            13,784

            -

            BBB Tank Services, LLC

            12.00% (L+11.00%, Floor 1.00%) Unsecured Debt

            (8)

            -

            (2,242)

            612

            4,722

            27

            2,242

            2,507

            Member Units

            (8)

            -

            (280)

            -

            280

            -

            280

            -

            Preferred Stock (non-voting)

            (8)

            -

            (162)

            11

            151

            11

            162

            -

            Boccella Precast Products LLC

            10.00% Secured Debt

            (6)

            -

            -

            9

            -

            320

            -

            320

            Member Units

            (6)

            -

            (1,210)

            398

            6,040

            -

            1,210

            4,830

            Brightwood Capital Fund Investments - Fund V

            LP Interests (Brightwood Capital Fund V, LP)

            (6)

            -

            -

            -

            -

            1,000

            -

            1,000

            Buca C, LLC

            10.25% (L+9.25%, Floor 1.00%) Secured Debt

            (7)

            -

            (373)

            1,782

            14,256

            487

            373

            14,370

            CAI Software LLC

            12.50% Secured Debt

            (6)

            -

            (340)

            7,570

            47,474

            23,940

            71,414

            -

            Member Units

            (6)

            10,252

            (5,095)

            2,380

            7,190

            -

            7,190

            -

            Career Team Holdings, LLC

            12.50% Secured Debt

            (6)

            -

            -

            513

            -

            20,050

            -

            20,050

            Class A Common Units

            (6)

            -

            -

            -

            -

            4,500

            -

            4,500

            Chandler Signs Holdings, LLC

            Class A Units

            (8)

            -

            (1,000)

            -

            1,460

            -

            1,000

            460

            Charlotte Russe, Inc

            Common Stock

            (9)

            (3,141)

            3,141

            -

            -

            3,141

            3,141

            -

            Classic H&G Holdings, LLC

            7.00% (L+6.00%, Floor 1.00%) Secured Debt

            (6)

            -

            -

            83

            -

            4,000

            -

            4,000

            8.00% Secured Debt

            (6)

            -

            (82)

            2,210

            24,800

            82

            5,608

            19,274

            Preferred Member Units

            (6)

            -

            5,750

            1,070

            9,510

            5,750

            -

            15,260

            Congruent Credit Opportunities Funds

            LP Interests (Congruent Credit Opportunities Fund
            III, LP)

            (8)

            -

            (96)

            776

            11,540

            -

            1,581

            9,959

            LP Interests (Congruent Credit Opportunities Fund
            II, LP)

            (8)

            (4,449)

            4,355

            -

            94

            4,355

            4,449

            -

            Copper Trail Energy Fund I, LP

            LP Interests (Copper Trail Energy Fund I, LP)

            (9)

            (203)

            379

            378

            1,782

            379

            2,161

            -

            DMA Industries, LLC

            12.00% Secured Debt

            (7)

            -

            -

            521

            -

            20,993

            -

            20,993

            Preferred Equity

            (7)

            -

            -

            -

            -

            5,944

            -

            5,944

            Dos Rios Partners

            LP Interests (Dos Rios Partners - A, LP)

            (8)

            715

            1,560

            -

            1,720

            1,560

            -

            3,280

            LP Interests (Dos Rios Partners, LP)

            (8)

            2,252

            4,912

            -

            5,417

            4,912

            -

            10,329

            Dos Rios Stone Products LLC

            Class A Preferred Units

            (8)

            -

            (610)

            -

            1,250

            -

            610

            640

            East Teak Fine Hardwoods, Inc.

            Common Stock

            (7)

            (80)

            180

            100

            300

            180

            480

            -

            EIG Fund Investments

            LP Interests (EIG Global Private Debt Fund-A, L.P.)

            (8)

            9

            166

            53

            526

            200

            179

            547

            Flame King Holdings, LLC

            12.00% (L+11.00%, Floor 1.00%) Secured Debt

            (9)

            -

            -

            884

            -

            20,996

            -

            20,996

            7.50% (L+6.50%, Floor 1.00%) Secured Debt

            (9)

            -

            -

            77

            -

            6,324

            -

            6,324

            Preferred Equity

            (9)

            -

            -

            -

            -

            10,400

            -

            10,400

            Freeport Financial SBIC Fund LP

            LP Interests (Freeport Financial SBIC Fund LP)

            (5)

            -

            814

            -

            5,264

            814

            -

            6,078

            LP Interests (Freeport First Lien Loan Fund III LP)

            (5)

            -

            66

            751

            10,321

            66

            3,156

            7,231

            GFG Group, LLC.

            12.00% Secured Debt

            (5)

            -

            110

            1,601

            -

            15,745

            3,200

            12,545

            Preferred Member Units

            (5)

            -

            2,090

            629

            -

            6,990

            -

            6,990

            Hawk Ridge Systems, LLC

            7.00% (L+6.00%, Floor 1.00%) Secured Debt

            (9)

            -

            -

            70

            -

            2,585

            -

            2,585

            8.00% Secured Debt

            (9)

            -

            94

            2,023

            18,400

            16,400

            -

            34,800

            Preferred Member Units

            (9)

            -

            7,000

            1,914

            8,450

            7,000

            -

            15,450

            Houston Plating and Coatings, LLC

            8.00% Unsecured Convertible Debt

            (8)

            -

            60

            243

            2,900

            60

            -

            2,960

            Member Units

            (8)

            -

            (1,870)

            261

            5,080

            -

            1,870

            3,210

            HPEP 3, L.P.

            LP Interests (HPEP 3, L.P.)

            (8)

            -

            1,332

            177

            3,258

            1,706

            252

            4,712

            I-45 SLF LLC

            Member Units (Fully diluted 20.0%; 24.40% profits
            interest)

            (8)

            -

            (202)

            1,861

            15,789

            800

            2,202

            14,387

            Iron-Main Investments, LLC

            12.50% Secured Debt

            (5)

            -

            -

            201

            -

            3,170

            -

            3,170

            12.50% PIK Secured Debt

            (5)

            -

            -

            408

            -

            9,088

            144

            8,944

            12.50% Secured Debt

            (5)

            -

            -

            731

            -

            19,805

            -

            19,805

            13.00% Secured Debt

            (5)

            -

            -

            346

            -

            4,557

            -

            4,557

            Common Stock

            (5)

            -

            -

            -

            -

            1,798

            -

            1,798

            L.F. Manufacturing Holdings, LLC

            Member Units

            (8)

            -

            510

            -

            2,050

            510

            -

            2,560

            Preferred Member Units (non-voting)

            (8)

            -

            -

            14

            93

            14

            -

            107

            Meisler Operating LLC

            Common Stock

            (5)

            17,048

            (7,413)

            -

            16,010

            (550)

            15,460

            -

            OnAsset Intelligence, Inc.

            10.00% PIK Unsecured Debt

            (8)

            -

            -

            11

            64

            139

            11

            192

            12.00% PIK Secured Debt

            (8)

            -

            -

            930

            7,299

            930

            -

            8,229

            Common Stock

            (8)

            -

            (830)

            -

            -

            830

            830

            -

            Warrants

            (8)

            -

            830

            -

            -

            830

            830

            -

            Oneliance, LLC

            12.00% (L+11.00%, Floor 1.00%) Secured Debt

            (7)

            -

            -

            335

            -

            5,547

            -

            5,547

            Preferred Stock

            (7)

            -

            -

            -

            -

            1,056

            -

            1,056

            PCI Holding Company, Inc.

            Preferred Stock

            (9)

            -

            (203)

            2,852

            4,130

            -

            4,130

            -

            SI East, LLC (Stavig)

            10.25% Secured Debt

            (7)

            -

            (90)

            4,032

            32,962

            36,765

            3,877

            65,850

            Preferred Member Units

            (7)

            -

            6,572

            2,340

            9,780

            6,572

            4,782

            11,570


            177


            Table of Contents

            Slick Innovations, LLC

            13.00% Secured Debt

            (6)

            -

            (42)

            731

            5,720

            42

            442

            5,320

            Common Stock

            (6)

            -

            180

            -

            1,330

            180

            -

            1,510

            Warrants

            (6)

            -

            40

            -

            360

            40

            -

            400

            Sonic Systems International, LLC

            8.50% (L+7.50%, Floor 1.00%) Secured Debt

            (8)

            -

            -

            394

            -

            11,757

            -

            11,757

            Common Stock

            (8)

            -

            -

            37

            -

            1,070

            -

            1,070

            Superior Rigging & Erecting Co.

            12.00% Secured Debt

            (7)

            -

            -

            2,650

            21,298

            34

            -

            21,332

            Preferred Member Units

            (7)

            -

            -

            -

            4,500

            -

            -

            4,500

            The Affiliati Network, LLC

            11.83% Secured Debt

            (9)

            -

            -

            842

            -

            13,873

            1,039

            12,834

            7.00% Secured Debt

            (9)

            -

            -

            9

            -

            1,462

            1,200

            262

            Preferred Stock

            (9)

            -

            -

            270

            -

            6,400

            -

            6,400

            UniTek Global Services, Inc.

            15.00% PIK Secured Convertible Debt

            (6)

            -

            1,178

            151

            -

            2,461

            86

            2,375

            8.50% (6.50% cash, 2.00% PIK) (2.00% PIK, L+5.50% Floor 1.00%) Secured Debt

            (6)

            -

            115

            236

            2,425

            259

            462

            2,222

            Preferred Stock

            (6)

            -

            807

            315

            3,208

            1,439

            316

            4,331

            Volusion, LLC

            11.50% Secured Debt

            (8)

            -

            991

            2,248

            19,243

            991

            2,800

            17,434

            8.00% Unsecured Convertible Debt

            (8)

            -

            118

            33

            291

            118

            -

            409

            Preferred Member Units

            (8)

            -

            -

            -

            5,990

            -

            -

            5,990

            Other

            Amounts related to investments transferred to or from other 1940 Act classification during the period

            (694)

            -

            (11)

            (12,263)

            -

            -

            -

            Total Affiliate investments

            $

            17,181

            $

            21,989

            $

            51,278

            $

            366,301

            $

            336,505

            $

            165,855

            $

            549,214


            (1)The principal amount, the ownership detail for equity investments and if the investment is income producing is included in the consolidated schedule of investments.
            (2)Represents the total amount of interest, fees and dividends credited to income for the portion of the period for which an investment was included in Control or Affiliate categories, respectively. For investments transferred between Control and Affiliate categories during the period, any income or investment balances related to the time period it was in the category other than the one shown at period end is included in “Amounts from investments transferred from other 1940 Act classifications during the period.”
            (3)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments and accrued PIK interest, and the exchange of one or more existing securities for one or more new securities. Gross additions also include net increases in unrealized appreciation or net decreases in net unrealized depreciation as well as the movement of an existing portfolio company into this category and out of a different category.
            (4)Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also include net increases in net unrealized depreciation or net decreases in unrealized appreciation as well as the movement of an existing portfolio company out of this category and into a different category.
            (5)Portfolio company located in the Midwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2021 for control investments located in this region was $342,215. This represented 23.0% of net assets as of December 31, 2021. The fair value as of December 31, 2021 for affiliate investments located in this region was $71,118. This represented 12.9% of net assets as of December 31, 2021.
            (6)Portfolio company located in the Northeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2021 for control investments located in this region was $123,216. This represented 8.3% of net assets as of December 31, 2021. The fair value as of December 31, 2021 for affiliate investments located in this region was $94,447. This represented 17.2% of net assets as of December 31, 2021.
            (7)Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2021 for control investments located in this region was $19,520. This represented 1.3% of net assets as of December 31, 2021. The fair value as of December 31, 2021 for affiliate investments located in this region was $164,975. This represented 30.0% of net assets as of December 31, 2021.
            (8)Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2021 for control investments located in this region was $640,096. This represented 43.0% of net assets as of

            178


            Company
             
            Investment(1)
             Amount of
            Realized
            Gain/(Loss)
             Amount of
            Unrealized
            Gain/(Loss)
             Amount of
            Interest,
            Fee or
            Dividends
            Credited to
            Income(2)
             December 31,
            2015
            Fair Value
             Gross
            Additions(3)
             Gross
            Reductions(4)
             December 31,
            2016
            Fair Value
             

            Affiliate Investments

                                    

                                    

            AFG Capital Group, LLC

             11% Secured Debt $ $(179)$1,313 $12,790 $349 $13,139 $ 

             Warrants    180    490  180    670 

             Member Units    730  40  2,020  730    2,750 

            Barfly Ventures, LLC

             12% Secured Debt    (33) 1,053  4,042  1,818  33  5,827 

             Options    93      490    490 

             Warrants    (193)   473    193  280 

            BBB Tank Services, LLC

             LIBOR Plus 9.50% (Floor 1.00%)      22    797    797 

             15% Secured Debt      439    3,991    3,991 

             Member Units          800    800 

            Boss Industries, LLC

             Preferred Member Units    34  264  2,586  214    2,800 

            Bridge Capital Solutions Corporation

             13% Secured Debt      1,293  6,890  5,720  7,000  5,610 

             Warrants    138    1,300  2,070    3,370 

             13% Secured Debt    9  73    1,000    1,000 

             Preferred Member Units      44    1,000    1,000 

            Buca C, LLC

             LIBOR Plus 7.25% (Floor 1.00%)    167  2,087  25,299  531  3,159  22,671 

             Preferred Member Units    723  226  3,711  949    4,660 

            CAI Software LLC

             12% Secured Debt    (13) 507  4,661  14  992  3,683 

             Member Units    1,480  102  1,000  1,480    2,480 

            CapFusion, LLC

             13% Secured Debt      1,547    13,202    13,202 

             Warrants          1,200    1,200 

            Chandler Signs Holdings, LLC

             12% Secured Debt    39  595    4,500    4,500 

             Class A Units    1,740  149    3,240    3,240 

            Condit Exhibits, LLC

             Member Units    830  175  1,010  830    1,840 

            Congruent Credit Opportunities

             LP Interests (Fund II)    (434) 400  2,834    1,316  1,518 

            Funds

             LP Interests (Fund III)    423  1,115  12,024  4,157    16,181 

            Daseke, Inc.

             12% Current / 2.5% PIK Secured Debt    (84) 3,252  21,253  629  83  21,799 

             Common Stock    1,403    22,660  1,403    24,063 

            Dos Rios Partners

             LP Interests (Dos Rios Partners, LP)    2    2,031  2,894    4,925 

             LP Interests (Dos Rios Partners — A, LP)    (122)   648  918  122  1,444 

            Dos Rios Stone Products LLC

             Class A Units    70  57    2,070    2,070 

            East Teak Fine Hardwoods, Inc.

             Common Stock      41  860      860 

            East West Copolymer &

             12% Current / 2% PIK Secured Debt    (961) 1,302  9,463  127  960  8,630 

            Rubber, LLC

             Warrants    (50)   50    50   

            EIG Fund Investments

             LP Interests      243  718  2,086    2,804 

            EIG Traverse Co-Investment, L.P.

             LP Interests    100  1,175  4,755  5,150    9,905 

            Freeport Financial Fund Investments

             LP Interests (Freeport Financial SBIC Fund LP)    (425) 398  6,045    425  5,620 

             LP Interests (Freeport First Lien Loan Fund III LP)      478  2,077  2,686    4,763 

            Gault Financial, LLC (RMB

             10% Secured Debt      1,532  10,930  149    11,079 

            Capital, LLC)

             Warrants               

            Glowpoint, Inc.

             8% Secured Debt      21  397  1  398   

             12% Secured Debt    (4,951) 1,125  8,929  22  4,954  3,997 

             Common Stock    (1,760)   3,840    1,760  2,080 

            Guerdon Modular Holdings, Inc.

             9% Current / 4% PIK Secured Debt      1,463  10,280  1,274  960  10,594 

             Preferred Stock          1,140    1,140 

             Common Stock    (1,910)   1,990    1,910  80 

            Hawk Ridge Systems, LLC

             10% Secured Debt      184    9,901    9,901 

             Preferred Member Units      28    2,850    2,850 

             Preferred Member Units          150    150 

            Houston Plating and Coatings, LLC

             Member Units    (4,873) (22) 8,440  433  4,873  4,000 

            I-45 SLF LLC

             Member Units    386  1,964  7,200  7,386    14,586 

            Indianhead Pipeline Services, LLC

             12% Secured Debt      1,548  5,853  126  900  5,079 

             Preferred Member Units    338  37  2,302  375    2,677 

             Warrants               

             Member Units               

            KBK Industries, LLC

             10% Secured Debt      51    1,550  300  1,250 

             12.5% Secured Debt    (25) 763  5,900  14  25  5,889 

             Member Units    (900) (8) 3,680    900  2,780 

            L.F. Manufacturing Holdings, LLC

             Member Units    (105)   1,485    105  1,380 

            Table of Contents

            December 31, 2021. The fair value as of December 31, 2021 for affiliate investments located in this region was $108,623. This represented 19.8% of net assets as of December 31, 2021.
            (9)Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of December 31, 2021 for control investments located in this region was $364,210. This represented 24.5% of net assets as of December 31, 2021. The fair value as of December 31, 2021 for affiliate investments located in this region was $110,051. This represented 20.0% of net assets as of December 31, 2021.
            (10)All of the Company’s portfolio investments are generally subject to restrictions on resale as “restricted securities,” unless otherwise noted.
            (11)This schedule should be read in conjunction with the consolidated schedule of investments and notes to the consolidated financial statements. Supplemental information can be located within the schedule of investments including end of period interest rate, preferred dividend rate, maturity date, investments not paid currently in cash and investments whose value was determined using significant unobservable inputs.

            179


            Company
             
            Investment(1)
             Amount of
            Realized
            Gain/(Loss)
             Amount of
            Unrealized
            Gain/(Loss)
             Amount of
            Interest,
            Fee or
            Dividends
            Credited to
            Income(2)
             December 31,
            2015
            Fair Value
             Gross
            Additions(3)
             Gross
            Reductions(4)
             December 31,
            2016
            Fair Value
             

            MPS Denver, LLC

             Member Units  (1,254)     1,130  124  1,254   

            OnAsset Intelligence, Inc.

             12% PIK Secured Debt      512  4,006  513    4,519 

             Preferred Stock    (1,380)   1,380    1,380   

             Warrants               

            OPI International Ltd.

             10% Unsecured Debt      48  473      473 

             Common Stock    (1,600)   3,200    1,600  1,600 

            PCI Holding Company, Inc.

             12% Secured Debt    102  1,354    13,000    13,000 

             Preferred Stock    (134) 617  4,887  617  134  5,370 

            Radial Drilling Services Inc.

             12% Secured Debt  (1,433) 2,441  20  1,500  2,461  3,961   

             Warrants  (760) 758      758  758   

            Rocaceia, LLC (Quality Lease and

             12% Secured Debt        250      250 

            Rental Holdings, LLC)

             Preferred Member Units  (2)            

            Samba Holdings, Inc.

             12.5% Secured Debt    (110) 1,100  24,662  110  24,772   

             Common Stock  28,707  (28,133)   30,220    30,220   

            Tin Roof Acquisition Company

             12% Secured Debt      1,735  13,807  62  484  13,385 

             Class C Preferred Stock      262  2,477  261    2,738 

            UniTek Global Services, Inc.

             LIBOR Plus 7.50% (Floor 1.00%)    25  254  2,812  2,209    5,021 

             LIBOR Plus 8.50% (Floor 1.00%)    6  108  1,255  16  447  824 

             15% PIK Unsecured Debt    3  113  638  107    745 

             Preferred Stock    (8) 878  5,540  878  8  6,410 

             Common Stock    3,010      3,010    3,010 

            Universal Wellhead Services

             Member Units    (3,390)     4,000  3,390  610 

            Holdings, LLC

             Preferred Member Units  (91) 1,003    3,000  1,811  4,091  720 

            Valley Healthcare Group, LLC

             LIBOR Plus 12.50% (Floor 0.50%)      1,519  10,297  2,647  100  12,844 

             Preferred Member Units          1,600    1,600 

            Volusion, LLC

             11.5% Secured Debt      2,451  16,199    901  15,298 

             Preferred Member Units        14,000      14,000 

             Warrants        1,400  1,176    2,576 

            Other

                                    

            Amounts related to investments transferred to or from other 1940 Act classification during the period

                    (345) (15,530)      

               $25,167 $(35,540)$37,702 $350,519 $127,956 $118,057 $375,948 

            Total Non-Control/Non-Affiliate investments

               $(26,317)$39,909 $88,242             

            Total Portfolio Investments

               $31,070 $(8,305)$178,165             

              This schedule should be read in conjunction with Main Street's consolidated financial statements, including the consolidated schedule of investments and notes to the consolidated financial statements.

            (1)
            The principal amount, the ownership detail for equity investments and if the investment is income producing is included in the consolidated schedule of investments.

            (2)
            Represents the total amount of interest, fees and dividends credited to income for the portion of the period for which an investment was included in Control or Affiliate categories, respectively. For investments transferred between Control and Affiliate categories during the period, any income or investment balances related to the time period it was in the category other than the one shown at period end is included in "Amounts from investments transferred from other 1940 Act classifications during the period."

            (3)
            Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments and accrued PIK interest, and the exchange of one or more existing securities for one or more new securities. Gross additions also include net increases in unrealized appreciation or net decreases in net unrealized depreciation as well as the movement of an existing portfolio company into this category and out of a different category.

            (4)
            Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also include net increases in net unrealized depreciation or net decreases in unrealized appreciation as well as the movement of an existing portfolio company out of this category and into a different category.

            Table of Contents

            Schedule 12-14

            MAIN STREET CAPITAL CORPORATION

            Consolidated Schedule of Investments In and Advances to Affiliates

            December 31, 2020

            (dollars in thousands)

            Amount of

            Interest,

            Fees or

            Amount of

            Amount of

            Dividends

            December 31, 

            December 31, 

            Realized

            Unrealized

            Credited to

            2019

            Gross

            Gross

            2020

            Company

                

            Investment(1)(10)(11)

                

            Geography

                

            Gain/(Loss)

                

            Gain/(Loss)

                

            Income(2)

                

            Fair Value

                

            Additions(3)

                

            Reductions(4)

                

            Fair Value

            Majorityowned investments

              

              

              

              

              

              

              

              

              

            Café Brazil, LLC

             

            Member Units

             

            (8)

            $

            $

            (410)

            $

            38

            $

            2,440

            $

            $

            410

            $

            2,030

            California Splendor Holdings LLC

             

            LIBOR Plus 8.00% (Floor 1.00%)

             

            (9)

             

             

            29

             

            1,154

             

            7,104

             

            18,239

             

            17,300

             

            8,043

             

            LIBOR Plus 10.00% (Floor 1.00%)

             

            (9)

             

             

            (65)

             

            3,291

             

            27,801

             

            53

             

            65

             

            27,789

             

            Preferred Member Units

             

            (9)

             

             

             

            1,092

             

            7,163

             

            1,092

             

             

            8,255

             

            Preferred Member Units

             

            (9)

             

             

            (1,141)

             

            250

             

            7,382

             

             

            1,141

             

            6,241

            Clad-Rex Steel, LLC

             

            LIBOR Plus 9.50% (Floor 1.00%)

             

            (5)

             

             

            49

             

            1,195

             

            10,781

             

            72

             

             

            10,853

             

            Member Units

             

            (5)

             

             

            (1,020)

             

            587

             

            9,630

             

             

            1,020

             

            8,610

             

            10% Secured Debt

             

            (5)

             

             

            (11)

             

            113

             

            1,137

             

             

            37

             

            1,100

             

            Member Units

             

            (5)

             

             

            70

             

             

            460

             

            70

             

             

            530

            CMS Minerals Investments

             

            Member Units

             

            (9)

             

             

            (69)

             

             

            1,900

             

             

            276

             

            1,624

            Cody Pools, Inc.

             

            LIBOR Plus 10.50% (Floor 1.75%)

             

            (8)

            125

            1,798

            16,000

            1,784

            14,216

             

            Preferred Member Units

             

            (8)

            6,623

            87

            14,940

            14,940

            CompareNetworks Topco, LLC

             

            LIBOR Plus 11.00% (Floor 1.00%)

             

            (9)

             

             

            43

             

            1,123

             

            8,288

             

            2,075

             

            2,410

             

            7,953

             

            Preferred Member Units

             

            (9)

             

             

            3,770

             

            632

             

            3,010

             

            3,770

             

             

            6,780

            Direct Marketing Solutions, Inc.

             

            LIBOR Plus 11.00% (Floor 1.00%)

             

            (9)

             

             

            (110)

             

            1,934

             

            15,707

             

            37

             

            737

             

            15,007

             

            Preferred Stock

             

            (9)

             

             

            (820)

             

             

            20,200

             

             

            820

             

            19,380

            Gamber-Johnson Holdings, LLC

             

            LIBOR Plus 7.00% (Floor 2.00%)

             

            (5)

             

             

            (41)

             

            1,776

             

            19,022

             

            1,640

             

            824

             

            19,838

             

            Member Units

             

            (5)

             

             

            (920)

             

            3,537

             

            53,410

             

             

            920

             

            52,490

            GRT Rubber Technologies LLC

             

            LIBOR Plus 7.00%

             

            (8)

             

             

             

            1,294

             

            15,016

             

            1,759

             

             

            16,775

             

            Member Units

             

            (8)

             

             

            (2,550)

             

            3,542

             

            47,450

             

             

            2,550

             

            44,900

            Guerdon Modular Holdings, Inc.

             

            16.00% Secured Debt

             

            (9)

             

            (12,776)

             

            12,588

             

             

             

            12,776

             

            12,776

             

             

            LIBOR Plus 8.50% (Floor 1.00%)

             

            (9)

             

            (993)

             

            1,010

             

             

             

            993

             

            993

             

             

            Preferred Stock

             

            (9)

             

            (1,140)

             

            1,140

             

             

             

            1,140

             

            1,140

             

             

            Common Stock

             

            (9)

             

            (2,849)

             

            2,983

             

             

             

            2,849

             

            2,849

             

             

            Warrants

             

            (9)

             

             

             

             

             

             

             

            Harborside Holdings, LLC

             

            Member Units

             

            (8)

             

            (2,406)

             

            (3,054)

             

             

            9,560

             

            100

             

            9,660

             

            IDX Broker, LLC

             

            11.00% Secured Debt

             

            (9)

             

             

            (42)

             

            711

             

            13,400

             

            42

             

            13,442

             

             

            Preferred Member Units

             

            (9)

             

            9,337

             

            (9,088)

             

            1,193

             

            15,040

             

             

            15,040

             

            Jensen Jewelers of Idaho, LLC

             

            Prime Plus 6.75% (Floor 2.00%)

             

            (9)

             

             

            (14)

             

            423

             

            4,000

             

            14

             

            614

             

            3,400

             

            Member Units

             

            (9)

             

             

            (650)

             

            683

             

            8,270

             

             

            650

             

            7,620

            Kickhaefer Manufacturing Company, LLC

             

            11.50% Secured Debt

             

            (5)

             

             

             

            2,947

             

            24,982

             

            1,433

             

            4,146

             

            22,269

             

            Member Units

             

            (5)

             

             

             

             

            12,240

             

             

             

            12,240

             

            9.00% Secured Debt

             

            (5)

             

             

             

            357

             

            3,939

             

             

            30

             

            3,909

             

            Member Units

             

            (5)

             

             

             

            84

             

            1,160

             

             

             

            1,160

            Market Force Information, LLC

             

            12.00% PIK Secured Debt

             

            (9)

             

             

            (11,762)

             

            242

             

            22,621

             

            2,794

             

            11,853

             

            13,562

             

            LIBOR Plus 11.00% (Floor 1.00%)

             

            (9)

             

             

             

            116

             

            2,695

             

            1,791

             

            2,886

             

            1,600

             

            Member Units

             

            (9)

             

             

            (5,280)

             

             

            5,280

             

             

            5,280

             

            MH Corbin Holding LLC

             

            13.00% Secured Debt

             

            (5)

             

             

            (322)

             

            1,181

             

            8,890

             

            32

             

            642

             

            8,280

             

            Preferred Member Units

             

            (5)

             

             

            (20)

             

             

            20

             

             

            20

             

             

            Preferred Member Units

             

            (5)

             

             

            (2,400)

             

             

            4,770

             

             

            2,400

             

            2,370

            Mid-Columbia Lumber Products, LLC

             

            10.00% Secured Debt

             

            (9)

             

             

            148

             

            44

             

            1,602

             

            148

             

            1,750

             

             

            12.00% Secured Debt

             

            (9)

             

             

            256

             

            119

             

            3,644

             

            256

             

            3,900

             

             

            Member Units

             

            (9)

             

            (4,240)

             

            3,239

             

            1

             

             

            101

             

            101

             

             

            9.50% Secured Debt

             

            (9)

             

             

             

            30

             

            701

             

            19

             

            720

             

             

            Member Units

             

            (9)

             

             

            (850)

             

            20

             

            1,640

             

            709

             

            2,349

             

            MSC Adviser I, LLC

             

            Member Units

             

            (8)

             

             

            12,740

             

            2,491

             

            74,520

             

            42,240

             

             

            116,760

            Mystic Logistics Holdings, LLC

             

            12.00% Secured Debt

             

            (6)

             

             

             

            814

             

            6,253

             

            990

             

            520

             

            6,723

             

            Common Stock

             

            (6)

             

             

            580

             

            203

             

            8,410

             

            580

             

             

            8,990

            OMi Holdings, Inc.

             

            Common Stock

             

            (8)

             

             

            3,430

             

            2,343

             

            16,950

             

            3,430

             

             

            20,380

            Pearl Meyer Topco LLC

             

            12.00% Secured Debt

             

            (6)

             

             

             

            3,356

             

             

            37,202

             

             

            37,202

             

            Member Units

             

            (6)

             

             

            2,940

             

            538

             

             

            16,740

             

            800

             

            15,940

            PPL RVs, Inc.

             

            LIBOR Plus 7.00% (Floor 0.50%)

             

            (8)

             

             

            25

             

            1,204

             

            12,118

             

            188

             

            500

             

            11,806

             

            Common Stock

             

            (8)

             

             

            1,570

             

            690

             

            9,930

             

            1,570

             

             

            11,500

            Principle Environmental, LLC

             

            13.00% Secured Debt

             

            (8)

             

             

            44

             

            877

             

            6,397

             

             

             

            6,397

            180


            (d/b/a TruHorizon
            Environmental Solutions)

             

            Preferred Member Units

             

            (8)

             

             

            (2,890)

             

             

            13,390

             

             

            2,890

             

            10,500

             

            Warrants

             

            (8)

             

             

            (220)

             

             

            1,090

             

             

            220

             

            870

            Quality Lease Service, LLC

             

            Member Units

             

            (7)

             

             

            (4,880)

             

             

            9,289

             

            301

             

            5,130

             

            4,460

            Trantech Radiator Topco, LLC

             

            12.00% Secured Debt

             

            (7)

             

             

             

            1,105

             

            9,102

             

            22

             

            480

             

            8,644

             

            Common Stock

             

            (7)

             

             

            1,375

             

            116

             

            4,655

             

            1,375

             

             

            6,030

            Vision Interests, Inc.

             

            13.00% Secured Debt

             

            (9)

             

             

             

            268

             

            2,028

             

             

             

            2,028

             

            Series A Preferred Stock

             

            (9)

             

             

            (929)

             

             

            4,089

             

             

            929

             

            3,160

             

            Common Stock

             

            (9)

             

            (3,586)

             

            3,296

             

             

            409

             

            3,296

             

            3,705

             

            Ziegler’s NYPD, LLC

             

            6.50% Secured Debt

             

            (8)

             

             

            (21)

             

            66

             

            1,000

             

             

            21

             

            979

             

            12.00% Secured Debt

             

            (8)

             

             

             

            76

             

            625

             

             

             

            625

             

            14.00% Secured Debt

             

            (8)

             

             

             

            391

             

            2,750

             

             

             

            2,750

             

            Warrants

             

            (8)

             

             

             

             

             

             

             

             

            Preferred Member Units

             

            (8)

             

             

            511

             

             

            1,269

             

            511

             

             

            1,780

            Other controlled investments

             

             

             

             

             

             

             

             

             

            Access Media Holdings, LLC

             

            10.00% PIK Secured Debt

             

            (5)

             

            (19,698)

             

            17,442

             

            50

             

            6,387

             

            17,442

             

            23,829

             

             

            Preferred Member Units

             

            (5)

             

            (9,376)

             

            9,660

             

             

            (284)

             

            9,660

             

            9,376

             

             

            Member Units

             

            (5)

             

            (1)

             

             

             

             

            1

             

            1

             

            Analytical Systems Keco, LLC

             

            LIBOR Plus 10.00% (Floor 2.00%)

             

            (8)

             

             

             

            724

             

            5,210

             

            74

             

            410

             

            4,874

             

            Preferred Member Units

             

            (8)

             

             

             

             

            3,200

             

             

             

            3,200

             

            Warrants

             

            (8)

             

             

            (306)

             

             

            316

             

             

            306

             

            10

            ASC Interests, LLC

             

            13.00% Secured Debt

             

            (8)

             

             

             

            237

             

            1,639

             

            100

             

            24

             

            1,715

             

            Member Units

             

            (8)

             

             

            (170)

             

             

            1,290

             

             

            170

             

            1,120

            ATS Workholding, LLC

             

            5.00% Secured Debt

             

            (9)

             

             

            (1,332)

             

            282

             

            4,521

             

            179

             

            1,353

             

            3,347

             

            Preferred Member Units

             

            (9)

             

             

            (939)

             

             

            939

             

             

            939

             

            Bolder Panther Group, LLC

             

            LIBOR Plus 9.00% (Floor 1.50%)

             

            (9)

             

             

             

            579

             

             

            27,225

             

             

            27,225

             

            Preferred Member Units

             

            (9)

             

             

             

             

             

            10,194

             

             

            10,194

             

            Preferred Member Units

             

            (9)

             

             

             

             

             

            14,000

             

             

            14,000

            Bond-Coat, Inc.

             

            15.00% Secured Debt

             

            (8)

             

            (3)

             

             

            1,399

             

            11,473

             

            123

             

            11,596

             

             

            Common Stock

             

            (8)

             

             

            (6,260)

             

             

            8,300

             

             

            6,260

             

            2,040

            Brewer Crane Holdings, LLC

             

            LIBOR Plus 10.00% (Floor 1.00%)

             

            (9)

             

             

             

            1,012

             

            8,989

             

            20

             

            496

             

            8,513

             

            Preferred Member Units

             

            (9)

             

             

            1,570

             

            120

             

            4,280

             

            1,570

             

             

            5,850

            Bridge Capital Solutions Corporation

             

            13.00% Secured Debt

             

            (6)

             

             

             

            1,771

             

            7,797

             

            606

             

             

            8,403

             

            Warrants

             

            (6)

             

             

            (280)

             

             

            3,500

             

             

            280

             

            3,220

             

            13.00% Secured Debt

             

            (6)

             

             

             

            135

             

            996

             

            2

             

             

            998

             

            Preferred Member Units

             

            (6)

             

             

             

            100

             

            1,000

             

             

             

            1,000

            CBT Nuggets, LLC

             

            Member Units

             

            (9)

             

             

            (4,770)

             

            954

             

            50,850

             

             

            4,770

             

            46,080

            Centre Technologies Holdings, LLC

             

            LIBOR Plus 10.00% (Floor 2.00%)

             

            (8)

             

             

             

            1,480

             

            12,136

             

            25

             

            612

             

            11,549

             

            Preferred Member Units

             

            (8)

             

             

            320

             

            120

             

            5,840

             

            320

             

             

            6,160

            Chamberlin Holding LLC

             

            LIBOR Plus 8.00% (Floor 1.00%)

             

            (8)

             

             

            (47)

             

            1,942

             

            17,773

             

            47

             

            2,608

             

            15,212

             

            Member Units

             

            (8)

             

             

            4,030

             

            4,134

             

            24,040

             

            4,030

             

             

            28,070

             

            Member Units

             

            (8)

             

             

            (455)

             

            68

             

            1,450

             

            275

             

            455

             

            1,270

            Charps, LLC

             

            15.00% Secured Debt

             

            (5)

             

             

             

            258

             

            2,000

             

             

            1,331

             

            669

             

            8.67% Current / 1.33% PIK

             

            (5)

             

             

            1,716

             

            1,499

             

             

            8,903

             

            428

             

            8,475

             

            Preferred Member Units

             

            (5)

             

             

            2,718

             

            559

             

            6,920

             

            3,600

             

             

            10,520

            Copper Trail Fund Investments

             

            LP Interests (CTMH, LP)

             

            (9)

             

             

             

             

            872

             

             

            125

             

            747

            Datacom, LLC

             

            8.00% Secured Debt

             

            (8)

             

             

             

             

            1,615

             

             

             

            1,615

             

            10.50% PIK Secured Debt

             

            (8)

             

             

            389

             

             

            10,142

             

            389

             

             

            10,531

             

            Class A Preferred Member Units

             

            (8)

             

             

             

             

             

             

             

             

            Class B Preferred Member Units

             

            (8)

             

             

             

             

             

             

             

            Digital Products Holdings LLC

             

            LIBOR Plus 10.00% (Floor 1.00%)

             

            (5)

             

             

            1,026

             

            2,177

             

            18,452

             

            1,072

             

            1,447

             

            18,077

             

            Preferred Member Units

             

            (5)

             

             

            4,661

             

            200

             

            5,174

             

            4,661

             

             

            9,835

            Garreco, LLC

             

            LIBOR Plus 8.00% (Floor 1.00%, Ceiling 1.50%)

             

            (8)

             

             

             

            428

             

            4,515

             

            4

             

             

            4,519

             

            Member Units

             

            (8)

             

             

            (1,150)

             

             

            2,560

             

             

            1,150

             

            1,410

            Gulf Manufacturing, LLC

             

            Member Units

             

            (8)

             

             

            (2,920)

             

            135

             

            7,430

             

             

            2,920

             

            4,510

            Gulf Publishing Holdings, LLC

             

            LIBOR Plus 9.50% (Floor 1.00%), Current Coupon 5.25% / 5.25% PIK

             

            (8)

             

             

             

            27

             

            280

             

            17

             

            47

             

            250

             

            6.25% Current / 6.25% PIK

             

            (8)

             

             

            (1,091)

             

            1,650

             

            12,493

             

            1,055

             

            1,504

             

            12,044

             

            Member Units

             

            (8)

             

             

            (2,420)

             

             

            2,420

             

             

            2,420

             

            Harris Preston Fund Investments

             

            LP Interests (2717 MH, L.P.)

             

            (8)

             

            693

             

            (319)

             

             

            3,157

             

            52

             

            507

             

            2,702

             

            LP Interests (2717 HPP-MH, L.P.)

             

            (8)

             

             

             

             

             

            250

             

             

            250

            Harrison Hydra-Gen, Ltd.

             

            Common Stock

             

            (8)

             

             

            (2,520)

             

            104

             

            7,970

             

             

            2,520

             

            5,450

            J&J Services, Inc.

             

            11.50% Secured Debt

             

            (7)

             

             

            103

             

            1,943

             

            17,430

             

            170

             

            4,800

             

            12,800

             

            Preferred Stock

             

            (7)

             

             

            5,595

             

             

            7,160

             

            5,595

             

            75

             

            12,680

            KBK Industries, LLC

             

            Member Units

             

            (5)

             

             

            (2,270)

             

            454

             

            15,470

             

             

            2,270

             

            13,200

            NAPCO Precast, LLC

             

            Member Units

             

            (8)

             

             

            1,340

             

            642

             

            14,760

             

            1,340

             

             

            16,100

            Nebraska Vet AcquireCo, LLC (NVS)

             

            12.00% Secured Debt

             

            (5)

             

             

             

            223

             

             

            10,395

             

             

            10,395

             

            Preferred Member Units

             

            (5)

             

             

             

             

             

            6,500

             

             

            6,500

            NexRev LLC

             

            11.00% PIK Secured Debt

             

            (8)

             

             

            (289)

             

            1,973

             

            17,469

             

            201

             

            944

             

            16,726

             

            Preferred Member Units

             

            (8)

             

             

            (4,840)

             

            (35)

             

            6,310

             

             

            4,840

             

            1,470

            NRI Clinical Research, LLC

             

            9.00% Secured Debt

             

            (9)

             

             

            (47)

             

            752

             

            5,981

             

            1,566

             

            1,927

             

            5,620

             

            Warrants

             

            (9)

             

             

            260

             

             

            1,230

             

            260

             

             

            1,490

             

            Member Units

             

            (9)

             

             

            612

             

            548

             

            4,988

             

            1,160

             

            548

             

            5,600

            181


            NRP Jones, LLC

             

            12.00% Secured Debt

             

            (5)

             

             

             

            764

             

            6,376

             

             

            4,296

             

            2,080

             

            Member Units

             

            (5)

             

            1,279

             

            (1,889)

             

            384

             

            4,710

             

             

            1,889

             

            2,821

            NuStep, LLC

             

            12.00% Secured Debt

             

            (5)

             

             

             

            2,444

             

            19,703

             

            196

             

            2,706

             

            17,193

             

            Preferred Member Units

             

            (5)

             

             

            580

             

             

            10,200

             

            580

             

             

            10,780

            Pegasus Research Group, LLC

             

            Member Units

             

            (8)

             

             

            660

             

            491

             

            8,170

             

            660

             

             

            8,830

            Project BarFly, LLC

             

            Member Units

             

            (5)

             

             

             

             

             

            1,584

             

             

            1,584

             

            7.00% Secured Debt

             

            (5)

             

            (8,591)

             

            8,961

             

             

            7,736

             

            2,438

             

            10,174

             

             

            7.00% Secured Debt

             

            (5)

             

            (110)

             

             

             

             

            110

             

            110

             

             

            Warrants

             

            (5)

             

            (607)

             

            607

             

             

             

            607

             

            607

             

             

            7.00% Secured Debt

             

            (5)

             

             

             

            3

             

             

            343

             

             

            343

             

            Warrants

             

            (5)

             

            (473)

             

            473

             

             

             

            473

             

            473

             

            River Aggregates, LLC

             

            Zero Coupon Secured Debt

             

            (8)

             

             

            28

             

             

            722

             

            28

             

            750

             

             

            Member Units

             

            (8)

             

            4,015

             

            (3,840)

             

            187

             

            4,990

             

             

            4,990

             

             

            Member Units

             

            (8)

             

             

            71

             

             

            3,169

             

            71

             

             

            3,240

            Tedder Industries, LLC

             

            12.00% Secured Debt

             

            (9)

             

             

             

            2,097

             

            16,912

             

            29

             

            640

             

            16,301

             

            Preferred Member Units

             

            (9)

             

             

             

             

            8,136

             

             

             

            8,136

            UnionRock Energy Fund II, LP

             

            LP Interests

             

            (9)

             

             

             

             

             

            2,894

             

             

            2,894

            Other

             

             

             

             

             

             

             

             

             

            Amounts related to investments transferred to or from other
            1940 Act classification during the period

             

             

             

            (8,069)

             

            4,251

             

            9

             

            (3,172)

             

             

             

            Total Control investments

             

             

             

            (59,594)

             

            37,924

             

            81,155

             

            1,032,721

             

            336,485

             

            258,653

             

            1,113,725

            Affiliate Investments

             

             

             

             

             

             

             

             

             

            AAC Holdings, Inc.

             

            18.00% (10.00% Cash, 8.00% PIK) Secured Debt

             

            (7)

             

            (11,210)

             

            4,568

             

            119

             

            11,530

             

            21,359

             

            23,702

             

            9,187

             

            Common Stock

             

            (7)

             

             

             

             

             

            3,148

             

             

            3,148

             

            Warrants

             

            (7)

             

             

            2,938

             

             

             

            2,938

             

             

            2,938

            AFG Capital Group, LLC

             

            10.00% Secured Debt

             

            (8)

             

             

             

            66

             

            838

             

             

            347

             

            491

             

            Preferred Member Units

             

            (8)

             

             

            630

             

             

            5,180

             

            630

             

             

            5,810

            American Trailer Rental Group LLC

             

            LIBOR Plus 7.25% (Floor 1.00%)

             

            (5)

             

             

            (182)

             

            1,119

             

            27,087

             

            182

             

            27,269

             

             

            Member Units

             

            (5)

             

             

            3,729

             

             

            8,540

             

            7,470

             

             

            16,010

            BBB Tank Services, LLC

             

            LIBOR Plus 11.00% (Floor 1.00%)

             

            (8)

             

             

            (51)

             

            668

             

            4,698

             

            75

             

            51

             

            4,722

             

            Preferred Member Units

             

            (8)

             

             

             

            20

             

            131

             

            20

             

             

            151

             

            Member Units

             

            (8)

             

             

            (10)

             

             

            290

             

             

            10

             

            280

            Boccella Precast Products LLC

             

            LIBOR Plus 10.00% (Floor 1.00%)

             

            (6)

             

             

            (138)

             

            982

             

            13,244

             

            138

             

            13,382

             

             

            Member Units

             

            (6)

             

             

            (230)

             

            619

             

            6,270

             

             

            230

             

            6,040

            Buca C, LLC

             

            LIBOR Plus 9.25% (Floor 1.00%)

             

            (7)

             

             

            (4,562)

             

            2,032

             

            18,794

             

            24

             

            4,562

             

            14,256

             

            Preferred Member Units

             

            (7)

             

             

            (4,770)

             

            69

             

            4,701

             

            69

             

            4,770

             

            CAI Software LLC

             

            12.50% Secured Debt

             

            (6)

             

             

            257

             

            3,001

             

            9,160

             

            40,830

             

            2,516

             

            47,474

             

            Member Units

             

            (6)

             

             

            636

             

            10

             

            5,210

             

            1,980

             

             

            7,190

            Chandler Signs Holdings, LLC

             

            Class A Units

             

            (8)

             

             

            (1,280)

             

            (91)

             

            2,740

             

             

            1,280

             

            1,460

            Charlotte Russe, Inc

             

            Common Stock

             

            (9)

             

             

             

             

             

             

             

            Classic H&G Holdings, LLC

             

            12.00% Secured Debt

             

            (6)

             

             

            217

             

            3,112

             

             

            26,000

             

            1,200

             

            24,800

             

            Preferred Member Units

             

            (6)

             

             

            3,750

             

            469

             

             

            9,510

             

             

            9,510

            Congruent Credit Opportunities Funds

             

            LP Interests (Fund II)

             

            (8)

             

             

             

             

            855

             

             

            761

             

            94

             

            LP Interests (Fund III)

             

            (8)

             

             

            (515)

             

            823

             

            13,915

             

             

            2,375

             

            11,540

            Copper Trail Fund Investments

             

            LP Interests (Copper Trail Energy Fund I, LP)

             

            (9)

             

             

            (744)

             

            698

             

            2,362

             

             

            580

             

            1,782

            Dos Rios Partners

             

            LP Interests (Dos Rios Partners, LP)

             

            (8)

             

             

            (2,375)

             

             

            7,033

             

            759

             

            2,375

             

            5,417

             

            LP Interests (Dos Rios Partners - A, LP)

             

            (8)

             

             

            (754)

             

             

            2,233

             

            241

             

            754

             

            1,720

            East Teak Fine Hardwoods, Inc.

             

            Common Stock

             

            (7)

             

             

            (100)

             

             

            400

             

             

            100

             

            300

            EIG Fund Investments

             

            LP Interests (EIG Global Private Debt fund-A, L.P.)

             

            (8)

             

            6

             

            (165)

             

            141

             

            720

             

            110

             

            304

             

            526

            Freeport Financial Funds

             

            LP Interests (Freeport Financial SBIC Fund LP)

             

            (5)

             

             

            (514)

             

             

            5,778

             

             

            514

             

            5,264

             

            LP Interests (Freeport First Lien Loan Fund III LP)

             

            (5)

             

             

            (204)

             

            930

             

            9,696

             

            989

             

            364

             

            10,321

            Harris Preston Fund Investments

             

            LP Interests (HPEP 3, L.P.)

             

            (8)

             

             

            187

             

             

            2,474

             

            784

             

             

            3,258

            Hawk Ridge Systems, LLC

             

            LIBOR Plus 6.00% (Floor 1.00%)

             

            (9)

             

             

             

            70

             

            600

             

            1,384

             

            1,984

             

             

            11.00% Secured Debt

             

            (9)

             

             

            (31)

             

            1,758

             

            13,400

             

            5,031

             

            31

             

            18,400

             

            Preferred Member Units

             

            (9)

             

             

            130

             

            378

             

            7,900

             

            130

             

             

            8,030

             

            Preferred Member Units

             

            (9)

             

             

             

             

            420

             

             

             

            420

            Houston Plating and Coatings, LLC

             

            8.00% Unsecured Convertible Debt

             

            (8)

             

             

            (1,360)

             

            244

             

            4,260

             

             

            1,360

             

            2,900

             

            Member Units

             

            (8)

             

             

            (5,250)

             

            261

             

            10,330

             

             

            5,250

             

            5,080

            I-45 SLF LLC

             

            Member Units

             

            (8)

             

             

            (1,818)

             

            2,346

             

            14,407

             

            3,200

             

            1,818

             

            15,789

            L.F. Manufacturing Holdings, LLC

             

            Preferred Member Units

             

            (8)

             

             

             

            12

             

            81

             

            12

             

             

            93

             

            Member Units

             

            (8)

             

             

             

             

            2,050

             

             

             

            2,050

            OnAsset Intelligence, Inc.

             

            12.00% PIK Secured Debt

             

            (8)

             

             

             

            827

             

            6,474

             

            827

             

             

            7,301

             

            10.00% PIK Secured Debt

             

            (8)

             

             

             

            6

             

            58

             

            9

             

            3

             

            64

             

            Preferred Stock

             

            (8)

             

             

             

             

             

             

             

             

            Warrants

             

            (8)

             

             

             

             

             

             

             

            PCI Holding Company, Inc.

             

            12.00% Current Secured Debt

             

            (9)

             

             

             

            1,851

             

            11,356

             

             

            11,356

             

             

            Preferred Stock

             

            (9)

             

             

            1,450

             

             

            2,680

             

            1,450

             

             

            4,130

            182


             

            Preferred Stock

             

            (9)

             

            2,610

             

            (2,610)

             

             

            4,350

             

             

            4,350

             

            Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)

             

            12.00% Secured Debt

             

            (8)

             

            (413)

             

             

             

             

            413

             

            413

             

             

            Preferred Member Units

             

            (8)

             

             

             

             

             

             

             

            Salado Stone Holdings, LLC

             

            Class A Preferred Units

             

            (8)

             

             

            680

             

             

            570

             

            680

             

             

            1,250

            SI East, LLC

             

            9.50% Current, Secured Debt

             

            (7)

             

             

            (74)

             

            3,285

             

            32,963

             

            73

             

            74

             

            32,962

             

            Preferred Member Units

             

            (7)

             

             

            1,580

             

            1,292

             

            8,200

             

            1,580

             

             

            9,780

            Slick Innovations, LLC

             

            13.00% Current, Secured Debt

             

            (6)

             

             

            115

             

            919

             

            6,197

             

            163

             

            641

             

            5,719

             

            Warrants

             

            (6)

             

             

            70

             

             

            290

             

            70

             

             

            360

             

            Common Stock

             

            (6)

             

             

            250

             

             

            1,080

             

            250

             

             

            1,330

            Superior Rigging & Erecting Co.

             

            12.00% Current, Secured Debt

             

            (7)

             

             

             

            1,110

             

             

            21,298

             

             

            21,298

             

            Preferred Member Units

             

            (7)

             

             

             

             

             

            4,500

             

             

            4,500

            UniTek Global Services, Inc.

             

            LIBOR Plus 6.50% (Floor 1.00%)

             

            (6)

             

             

            (283)

             

            233

             

            2,962

             

            17

             

            553

             

            2,426

             

            Preferred Stock

             

            (6)

             

             

            (2,684)

             

             

            2,684

             

             

            2,684

             

             

            Preferred Stock

             

            (6)

             

             

            (2,119)

             

            212

             

            2,282

             

            212

             

            2,119

             

            375

             

            Preferred Stock

             

            (6)

             

             

            312

             

            255

             

            1,889

             

            945

             

            2

             

            2,832

             

            Preferred Stock

             

            (6)

             

             

            (3,667)

             

             

            3,667

             

             

            3,667

             

             

            Common Stock

             

            (6)

             

             

             

             

             

             

             

            Universal Wellhead Services Holdings, LLC

             

            Preferred Member Units

             

            (8)

             

             

            (800)

             

             

            800

             

             

            800

             

             

            Member Units

             

            (8)

             

             

             

             

             

             

             

            Volusion, LLC

             

            11.50% Secured Debt

             

            (8)

             

             

            (181)

             

            2,438

             

            19,352

             

            71

             

            181

             

            19,242

             

            8.00% Unsecured Convertible Debt

             

            (8)

             

             

             

            33

             

            291

             

             

             

            291

             

            Preferred Member Units

             

            (8)

             

             

            (8,010)

             

             

            14,000

             

             

            8,010

             

            5,990

             

            Warrants

             

            (8)

             

             

            (150)

             

             

            150

             

             

            150

             

            Other

             

             

             

             

             

             

             

             

             

            Amounts related to investments transferred to or from other
            1940 Act classification during the period

             

             

             

            11,210

             

            (4,906)

             

            118

             

            (9,335)

             

             

             

            Total Affiliate investments

             

             

             

            2,203

             

            (29,038)

             

            32,435

             

            330,287

             

            159,571

             

            132,892

             

            366,301


            (1)The principal amount, the ownership detail for equity investments and if the investment is income producing is included in the consolidated schedule of investments.
            (2)Represents the total amount of interest, fees and dividends credited to income for the portion of the period for which an investment was included in Control or Affiliate categories, respectively. For investments transferred between Control and Affiliate categories during the period, any income or investment balances related to the time period it was in the category other than the one shown at period end is included in “Amounts from investments transferred from other 1940 Act classifications during the period.”
            (3)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, follow-on investments and accrued PIK interest, and the exchange of one or more existing securities for one or more new securities. Gross additions also include net increases in unrealized appreciation or net decreases in net unrealized depreciation as well as the movement of an existing portfolio company into this category and out of a different category.
            (4)Gross reductions include decreases in the cost basis of investments resulting from principal repayments or sales and the exchange of one or more existing securities for one or more new securities. Gross reductions also include net increases in net unrealized depreciation or net decreases in unrealized appreciation as well as the movement of an existing portfolio company out of this category and into a different category.
            (5)Portfolio company located in the Midwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2020 for control investments located in this region was $256,121. This represented 16.9% of net assets as of December 31, 2020. The fair value as of December 31, 2020 for affiliate investments located in this region was $31,595. This represented 2.1% of net assets as of December 31, 2020.
            (6)Portfolio company located in the Northeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2020 for control investments located in this region was $82,476. This represented 5.4% of net assets as of December 31, 2020. The fair value as of December 31, 2020 for affiliate investments located in this region was $108,056. This represented 7.1% of net assets as of December 31, 2020.
            (7)Portfolio company located in the Southeast region as determined by location of the corporate headquarters. The fair value as of December 31, 2020 for control investments located in this region was $44,614. This represented 2.9% of net assets as of

            183


            December 31, 2020. The fair value as of December 31, 2020 for affiliate investments located in this region was $98,369. This represented 6.5% of net assets as of December 31, 2020.
            (8)Portfolio company located in the Southwest region as determined by location of the corporate headquarters. The fair value as of December 31, 2020 for control investments located in this region was $442,075. This represented 29.2% of net assets as of December 31, 2020. The fair value as of December 31, 2020 for affiliate investments located in this region was $95,519. This represented 6.3% of net assets as of December 31, 2020.
            (9)Portfolio company located in the West region as determined by location of the corporate headquarters. The fair value as of December 31, 2020 for control investments located in this region was $288,439. This represented 19.0% of net assets as of December 31, 2020. The fair value as of December 31, 2020 for affiliate investments located in this region was $32,762. This represented 2.2% of net assets as of December 31, 2020.
            (10)All of the Company’s portfolio investments are generally subject to restrictions on resale as “restricted securities,” unless otherwise noted.
            (11)This schedule should be read in conjunction with the consolidated schedule of investments and notes to the consolidated financial statements. Supplemental information can be located within the schedule of investments including end of period interest rate, preferred dividend rate, maturity date, investments not paid currently in cash and investments whose value was determined using significant unobservable inputs.

            184


            Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

            Not applicable.

            Item 9A. Controls and Procedures

            (a) Evaluation of Disclosure Controls and Procedures. As of the end of the period covered by this annual report on Form 10-K, we carried out an evaluation, under the supervision and with the participation of our management, including our Chief Executive Officer, President, Chief Financial Officer, Chief Compliance Officer and Chief Accounting Officer, conducted an evaluation of our disclosure controls and procedures (as defined in Rules 13a-15(e)Rule 13a-15 of the Securities Exchange Act of 1934)Act). Based upon thison that evaluation, our Chief Executive Officer, President, Chief Financial Officer, Chief Compliance Officer and Chief Accounting Officer have concluded that our current disclosure controls and procedures are effective to allowin timely decisions regarding required disclosurealerting them of any material information relating to us that is required to be disclosed by us in the reports we file or submit under the Securities Exchange Act of 1934.Act.

            (b) Management'sManagement’s Report on Internal Control Over Financial Reporting. The management of Main Street Capital Corporation and its subsidiaries (the Company) is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act RulesRule 13a-15(f). Under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, the Company conducted an evaluation of the effectiveness of the Company'sCompany’s internal control over financial reporting based on the criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based on the Company'sCompany’s evaluation under the framework in Internal Control — Integrated Framework, management concluded that the Company'sCompany’s internal control over financial reporting was effective as of December 31, 2017.2021. Grant Thornton LLP, the Company'sCompany’s independent registered public accounting firm, has issued an attestation report on the effectiveness of the Company'sCompany’s internal control over financial reporting as of December 31, 2017,2021, as stated in its report which is included herein.

            (c) Attestation Report of the Registered Public Accounting Firm. Our independent registered public accounting firm, Grant Thornton LLP, has issued an attestation report on the effectiveness of our internal control over financial reporting, which is set forth above under the heading "Reports“Reports of Independent Registered Public Accounting Firm"Firm” in Item 8. “Consolidated Financial Statements and Supplementary Data” of this Annual Report on Form 10-K.

            (d) Changes in Internal Control over Financial Reporting. There have been no changes in our internal control over financial reporting (as defined in Rule 13a-15(f) of the Securities Exchange Act of 1934) that occurred during our most recently completedthe fiscal quarter ended December 31, 2021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

            Item 9B. Other Information

                   None.Director Departure and Reduction in Size of Board


            On February 22, 2022, Mr. Arthur French informed our Board of Directors that after over fourteen years of excellent service to our Board since our initial public offering in 2007, he has decided not to stand for re-election to the Board of Directors at the end of his current term on the date of our 2022 Annual Meeting of Stockholders. Mr. French’s decision not to stand for re-election was not the result of any disagreement with management or the Board of Directors. In connection with Mr. French’s departure, the Board of Directors passed a resolution reducing the number of directors that constitutes the full Board of Directors from nine to eight directors, effective as of the date of our 2022 Annual Meeting of Stockholders.

            Fees and Expenses

            The following table is being provided to update, as of December 31, 2021, certain information in the Company’s effective shelf registration statement on Form N-2 (File No. 333-231146) filed with the SEC on April 30, 2019 as supplemented by the prospectus supplements relating to our ATM Program and to the direct stock purchase feature of the Plan. The information is intended to assist you in understanding the costs and expenses that an investor in

            185


            the Company will bear directly or indirectly. We caution you that some of the percentages indicated in the table below are estimates and may vary. Except where the context suggests otherwise, whenever this Annual Report on Form 10-K contains a reference to fees or expenses paid by “you,” “us” or “Main Street,” or that “we” will pay fees or expenses, stockholders will indirectly bear such fees or expenses as investors in us.

            Stockholder Transaction Expenses:

                

                

             

            Sales load (as a percentage of offering price)

             

            %(1)

            Offering expenses (as a percentage of offering price)

             

            %(2)

            Dividend reinvestment and direct stock purchase plan expenses

             

            %(3)

            Total stockholder transaction expenses (as a percentage of offering price)

             

            %(4)

            Annual Expenses of the Company (as a percentage of net assets attributable to common stock):

             

              

            Operating expenses

             

            3.23

            %(5)

            Interest payments on borrowed funds

             

            3.57

            %(6)

            Income tax expense

             

            1.84

            %(7)

            Acquired fund fees and expenses

             

            0.30

            %(8)

            Total annual expenses

             

            8.94

            %


            (1)

            The maximum agent commission with respect to the shares of our common stock sold by us in the ATM Program is 1.00%. Purchasers of shares of common stock through the direct stock purchase feature of the Plan will not pay any sales load. In the event that our securities are sold to or through underwriters, a corresponding prospectus or prospectus supplement will disclose the applicable sales load.

            (2)

            Estimated offering expenses payable by us for the estimated duration of the ATM Program are approximately $0.6 million. In the event that we conduct an offering of our securities, a corresponding prospectus or prospectus supplement will disclose the estimated offering expenses.

            (3)

            The expenses of administering the Plan are included in operating expenses. Additional costs may be charged to participants in the direct stock purchase feature of the plan for certain types of transactions.

            (4)

            Total stockholder transaction expenses may include sales load and will be disclosed in a future prospectus or prospectus supplement, if any.

            (5)

            Operating expenses in this table represent our estimated expenses.

            (6)

            Interest payments on borrowed funds represent our estimated annual interest payments on borrowed funds based on current debt levels as adjusted for projected increases (but not decreases) in debt levels over the next twelve months.

            (7)

            Income tax expense relates to the accrual of (a) deferred tax provision (benefit) primarily related to loss carryforwards, timing differences in net unrealized appreciation or depreciation and other temporary book-tax differences from our portfolio investments held in Taxable Subsidiaries and (b) excise, state and other taxes. Deferred taxes are non-cash in nature and may vary significantly from period to period. We are required to include deferred taxes in calculating our annual expenses even though deferred taxes are not currently payable or receivable. Due to the variable nature of deferred tax expense, which can be a large portion of the income tax expense, and the difficulty in providing an estimate for future periods, this income tax expense estimate is based upon the actual amount of income tax expense for the year ended December 31, 2021.

            (8)

            Acquired fund fees and expenses represent the estimated indirect expense incurred due to investments in other investment companies and private funds.

            Example

            The following example demonstrates the projected dollar amount of total cumulative expenses that would be incurred over various periods with respect to a hypothetical investment in our common stock. In calculating the following expense amounts, we have assumed we would have no additional leverage and that our annual operating

            186


            expenses would remain at the levels set forth in the table above and that you would pay either no sales load or a sales load of up to 1.00% (the commission to be paid by us with respect to common stock sold by us in the ATM Program).

                

            1 Year

                

            3 Years

                

            5 Years

                

            10 Years

            You would pay the following expenses on a $1,000 investment, assuming a 5.0% annual return and no sales load

            $

            88

            $

            253

            $

            405

            $

            736

            You would pay the following expenses on a $1,000 investment, assuming a 5.0% annual return and a 1.00% sales load

            $

            98

            $

            263

            $

            415

            $

            746

            The example and the expenses in the table above should not be considered a representation of our future expenses, and actual expenses may be greater or less than those shown. While the example assumes, as required by the SEC, a 5.0% annual return, our performance will vary and may result in a return greater or less than 5.0%. In addition, while the example assumes reinvestment of all dividends at net asset value, participants in our dividend reinvestment plan will receive a number of shares of our common stock, determined by dividing the total dollar amount of the dividend payable to a participant by (i) the market price per share of our common stock at the close of trading on a valuation date determined by our Board of Directors for each dividend in the event that we use newly issued shares to satisfy the share requirements of the dividend reinvestment plan or (ii) the average purchase price of all shares of common stock purchased by the plan administrator in the event that shares are purchased in the open market to satisfy the share requirements of the dividend reinvestment plan, which may be at, above or below net asset value. See the description in “Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities — Common Stock and Holders” for additional information regarding our dividend reinvestment plan.

            Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

            Not applicable.

            PART III

            Item 10. Directors, Executive Officers and Corporate Governance

            The information required by this Item will be contained in the definitive proxy statement relating to our 2017 annual meeting2022 Annual Meeting of stockholdersStockholders (the "Proxy Statement"“Proxy Statement”) under the headings "Election“Election of Directors," "Corporate Governance," "Executive Officers"” “Corporate Governance” and "Section 16(a) Beneficial Ownership Reporting Compliance,"“Executive Officers” to be filed with the Securities and Exchange Commission on or prior to April 30, 2018,2022, and is incorporated herein by reference.

            We have adopted a code of business conduct and ethics that applies to directors, officers and employees of Main Street. This code of ethics is published on our Web sitewebsite atwww.mainstcapital.com. We intend to disclose any substantive amendments to, or waivers from, this code of conduct within four business days of the waiver or amendment through a Web sitewebsite posting.

            Item 11. Executive Compensation

            The information required by this Item will be contained in the Proxy Statement under the headings "Compensation“Compensation of Executive Officers," "Compensation” “Compensation of Directors," "Compensation” “Compensation Discussion and Analysis," "Compensation” “Compensation Committee Interlocks and Insider Participation"Participation” and "Compensation“Compensation Committee Report," to be filed with the Securities and Exchange Commission on or prior to April 30, 2018,2022, and is incorporated herein by reference.

            187


            Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

            The following table provides information regarding our equity compensation plans as of December 31, 2017:2021:

                

                

                

            Number of Securities 

            Remaining Available for

            Number of Securities to be

            WeightedAverage Exercise 

             Future Issuance Under

             Issued Upon Exercise of

            Price of Outstanding

             Equity Compensation Plans 

             Outstanding Options,

             Options, Warrants and

            (Excluding Securities 

            Plan Category

                

             Warrants and Rights

                

             Rights

                

            Reflected in Column)

            Equity compensation plans approved by security holders(1)

            $

            $

            $

            1,436,233

            Equity compensation plans not approved by security holders(2)

             

            162,040

             

             

            Total

            $

            162,040

            $

            $

            1,436,233

            Plan Category
             Number of Securities to be
            Issued Upon Exercise of
            Outstanding Options,
            Warrants and Rights
             Weighted-Average Exercise
            Price of Outstanding
            Options, Warrants and
            Rights
             Number of Securities
            Remaining Available for
            Future Issuance Under
            Equity Compensation Plans
            (Excluding Securities
            Reflected in Column)
             

            Equity compensation plans approved by security holders(1)

             $ $ $2,795,272 

            Equity compensation plans not approved by security holders(2)

              89,040     

            Total

             $89,040 $ $2,795,272 

            (1)Consists of our Main Street Capital Corporation 2015 Equity and Incentive Plan and our Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan. As of December 31, 2021, we had issued 1,921,088 shares of restricted stock pursuant to these plans, of which 855,028 had vested and 57,015 shares were forfeited. Pursuant to each of these plans, if any award issued thereunder shall for any reason expire or otherwise terminate or be forfeited, in whole or in part, the shares of stock not acquired under such award shall revert to and again become available for issuance under such plan. For more information regarding these plans, see “Note J — Share-Based Compensation” in the notes to the consolidated financial statements.
            (2)Consists of our 2015 Deferred Compensation Plan. For more information regarding this plan, see “Note M — Related Party Transactions” in the notes to the consolidated financial statements.
            (1)
            Consists of our Main Street Capital Corporation 2015 Equity and Incentive Plan and our Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan. As of December 31, 2017, we had issued 508,323 shares of restricted stock pursuant to these plans, of which 108,092 shares had vested and 3,595 shares were forfeited. Pursuant to each of these plans, if any award issued thereunder shall for any reason expire or otherwise terminate or be forfeited, in whole or in part, the shares of stock not acquired under such award shall revert to and again become available for issuance under such plan. For more information regarding these plans, see "Note L — Share-Based Compensation" in the notes to the consolidated financial statements.

            (2)
            Consists of our 2015 Deferred Compensation Plan. For more information regarding this plan, see "Note O — Related Party Transactions" in the notes to the consolidated financial statements.

            Table of Contents

            The other information required by this Item will be contained in the Proxy Statement under the heading "Security“Security Ownership of Certain Beneficial Owners and Management," to be filed with the Securities and Exchange Commission on or prior to April 30, 2018,2022, and is incorporated herein by reference.

            Item 13.Certain Relationships and Related Transactions, and Director Independence

            The information required by this Item will be contained in the Proxy Statement under the headings "Certain“Certain Relationships and Related Party Transactions"Transactions” and "Corporate“Corporate Governance," to be filed with the Securities and Exchange Commission on or prior to April 30, 2018,2022, and is incorporated herein by reference.

            Item 14. Principal Accountant Fees and Services

            The information required by this Item will be contained in the Proxy Statement under the heading "Ratification“Ratification of Appointment of Independent Registered Public Accounting Firm for Year Ending December 31, 2018,"2022,” to be filed with the Securities and Exchange Commission on or prior to April 30, 2018,2022, and is incorporated herein by reference.


            188



            PART IV

            Item 15. Exhibits and Consolidated Financial Statement Schedules

            The following documents are filed or incorporated by reference as part of this Annual Report:

            1.

            Consolidated Financial Statements

            1.    Consolidated Financial Statements

            Reports of Independent Registered Public Accounting Firm (PCAOB ID Number 248)

            82

            76

            Consolidated Balance Sheets asSheets—As of December 31, 20172021 and 2016December 31, 2020


            84

            81

            Consolidated Statements of Operations forOperations—For the Years Endedyears ended December 31, 2017, 20162021, 2020 and 20152019


            85

            82

            Consolidated Statements of Changes in Net Assets forAssets—For the Years Endedyears ended December 31, 2017, 20162021, 2020 and 20152019


            86

            83

            Consolidated Statements of Cash Flows forFlows—For the Years Endedyears ended December 31, 2017, 20162021, 2020 and 20152019


            87

            84

            Consolidated SchedulesSchedule of Investments as of Investments—December 31, 2017 and 20162021


            88

            86

            Consolidated Schedule of Investments—December 31, 2020

            108

            Notes to Consolidated Financial Statements


            146

            130

            2.    Consolidated Financial Statement Schedule

            2.

            Consolidated Financial Statement Schedule

            Report of Independent Registered Public Accounting Firm

            191

            174

            Schedule of Investments in and Advances to Affiliates for the Years Ended December 31, 20172021 and 20162020


            192

            175

            3.    Exhibits

                   The following3.Exhibits

            Listed below are the exhibits which are filed as part of this report or hereby incorporated by reference(according to exhibits previously filed with the SEC:number assigned to them in Item 601 of Regulation S-K):

            Exhibit
            Number

            Description

            3.1*

              3.1*

            Articles of Amendment and Restatement of Main Street Capital Corporation (previously filed as Exhibit (a) to Main Street Capital Corporation'sCorporation’s Pre-Effective Amendment No. 2 to the Registration Statement on Form N-2 filed on August 15, 2007 (Reg. No. 333-142879))


            3.2*


              3.2*



            Amended and Restated Bylaws of Main Street Capital Corporation (previously filed as Exhibit 3.1 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed on March 6, 2013 (File No. 1-33723))


            4.1*


              4.1*



            Form of Common Stock Certificate (previously filed as Exhibit (d) to Main Street Capital Corporation'sCorporation’s Pre-Effective Amendment No. 2 to the Registration Statement on Form N-2 filed on August 15, 2007 (Reg. No. 333-142879))


            4.2*


              4.2*



            Dividend Reinvestment and Direct Stock Purchase Plan, dated July 18, 2017effective May 10, 2019 (previously filed as Exhibit (e)99.1 to Main Street Capital Corporation's Post-Effective Amendment No. 12 to the Registration StatementCorporation’s Current Report on Form N-28-K filed on July 18, 2017 (Reg.May 10, 2019 (File No. 333-203147)1-33723))


            4.3*


              4.3*



            Main Street Mezzanine Fund, LP SBIC debentures guaranteed by the SBA (previously filed as Exhibit (f)(1) to Main Street Capital Corporation'sCorporation’s Pre-Effective Amendment No. 1 to the Registration Statement on Form N-2 filed on June 22, 2007 (Reg. No. 333-142879))


            4.4*


              4.4*



            Main Street Capital II, LP SBIC debentures guaranteed by the SBA (see Exhibit (f)(1) to Pre-Effective Amendment No. 1 to Form N-2 of Main Street Capital Corporation filed with the SEC on June 22, 2007 for a substantially identical copy of the form of debentures)



              4.5*


            Main Street Capital III, LP SBIC debentures guaranteed by the SBA (see Exhibit (f)(1) to Main Street Capital Corporation’s Pre-Effective Amendment No. 1 to the Registration Statement on Form N-2 of Main Street Capital Corporation filed with the SEC on June 22, 2007 for a substantially identical copy of the form of debentures)

            Table of Contents

            189


            Exhibit
            Number

            Description


            4.6*


              4.7*



            Form of First Supplemental Indenture relating to the 6.125% Notes due 2023, between Main Street Capital Corporation and The Bank of New York Mellon Trust Company, N.A. (previously filed as Exhibit (d)(8) to Main Street Capital Corporation's Post-Effective Amendment No. 2 to the Registration Statement on Form N-2 filed on March 28, 2013 (Reg. No. 333-183555))



              4.8*


            Form of 6.125% Notes due 2023 (incorporated by reference to Exhibit 4.7)


              4.9*


            Form of Second Supplemental Indenture relating to the 4.50% Notes due 2019, between Main Street Capital Corporation and The Bank of New York Mellon Trust Company, N.A. (previously filed as Exhibit (d)(10) to Main Street Capital Corporation's Post-Effective Amendment No. 9 to the Registration Statement on Form N-2 filed on November 4, 2014 (Reg. No. 333-183555))


            4.10*


            Form of 4.50% Notes due 2019 (incorporated by reference to Exhibit 4.9)


            4.11*


            Form of Third Supplemental Indenture relating to the 4.50% Notes due 2022, between Main Street Capital Corporation and The Bank of New York Mellon Trust Company, N.A. (previously filed as Exhibit (d)(12) to Main Street Capital Corporation'sCorporation’s Post-Effective Amendment No. 14 to the Registration Statement on Form N-2 filed on November 17, 2017 (Reg. No. 333-203147))


            4.7*


            4.12*



            Form of 4.50% Notes due 2022 (incorporated by reference to Exhibit 4.11)4.6)


            4.8*


            10.1*


            Form of Fourth Supplemental Indenture relating to the 5.20% Notes due 2024, between Main Street Capital Corporation and The Bank of New York Mellon Trust Company, N.A. (previously filed as Exhibit (d)(11) to Main Street Capital Corporation’s Post-Effective Amendment No. 7 to the Registration Statement on Form N-2 filed on April 18, 2019 (Reg. No. 333-223483))

            4.9*


            Second AmendedForm of 5.20% Notes due 2024 (incorporated by reference to Exhibit 4.8)

            4.10*

            Fifth Supplemental Indenture relating to the 3.00% Notes due 2026, between Main Street Capital Corporation and Restated Credit AgreementThe Bank of New York Mellon Trust Company, N.A., as trustee (previously filed as Exhibit 4.1 to Main Street Capital Corporation’s Current Report on Form 8-K filed on January 14, 2021 (File No. 1-33723))

            4.11*

            Form of 3.00% Notes due 2026 (incorporated by reference to Exhibit 4.10)

            4.12*

            Description of Main Street Capital Corporation’s securities registered pursuant to Section 12 of the Securities Exchange Act of 1934 (previously filed as Exhibit 4.11 to Main Street Capital Corporation’s Annual Report on Form 10-K filed on February 28, 2020 (File No. 1-33723))

            10.1*

            Omnibus Amendment No. 1, dated September 27, 2013as of April 7, 2021, by and among Main Street, the guarantors party thereto, Truist Bank, as administrative agent, solely with respect to Section 2 thereof, the withdrawing lender, and the lenders party thereto (previously filed as Exhibit 10.1 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed on October 1, 2013April 8, 2021 (File No. 1-33723))


            10.2*


            10.2*



            SecondThird Amended and Restated General Security Agreement dated September 27, 2013June 5, 2018 (previously filed as Exhibit 10.2 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed on October 1, 2013June 6, 2018 (File No. 1-33723))


            10.3*


            10.3*



            SecondThird Amended and Restated Equity Pledge Agreement dated September 27, 2013June 5, 2018 (previously filed as Exhibit 10.3 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed on October 1, 2013June 6, 2018 (File No. 1-33723))


            10.4*


            10.4*



            Amended and Restated Custodial Agreement dated September 20, 2010 (previously filed as Exhibit 10.3 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed September 21, 2010 (File No. 1-33723))


            10.5*


            10.5*



            Third Amendment to Amended and Restated Credit Agreement and First Amendment to Amended and Restated Custodial Agreement dated November 21, 2011 (previously filed as Exhibit 10.1 to Main Street Capital Corporation'sCorporation’s Current Report on Form 8-K filed November 22, 2011 (File No. 1-33723))


            10.6*†


            10.6*



            First Amendment to Second Amended and Restated Credit Agreement dated June 27, 2014 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on July 1, 2014 (File No. 1-33723))



            10.7*


            Second Amendment to Second Amended and Restated Credit Agreement dated September 25, 2014 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on September 30, 2014 (File No. 1-33723))


            10.8*


            Third Amendment to Second Amended and Restated Credit Agreement dated October 22, 2014 (previously filed as Exhibit (k)(6) to Main Street Capital Corporation's Post-Effective Amendment No. 9 to the Registration Statement on Form N-2 filed on November 4, 2014 (Reg. No. 333-183555))

            Table of Contents

            Exhibit
            Number
            Description


            10.9*


            Supplement and Joinder Agreement dated December 11, 2014 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on December 12, 2014 (File No. 1-33723))


            10.10*


            Fourth Amendment to Second Amended and Restated Credit Agreement dated April 29, 2015 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on April 30, 2015 (File No. 1-33723))


            10.11*


            Fifth Amendment to Second Amended and Restated Credit Agreement and First Amendment to Security Agreement dated November 20, 2015 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on November 24, 2015 (File No. 1-33723))


            10.12*


            Sixth Amendment to Second Amended and Restated Credit Agreement dated October 31, 2016 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Current Report on Form 8-K filed on November 1, 2016 (File No. 1-33723))


            10.13*


            Supplement Agreement dated July 14, 2017 (previously filed as Exhibit 10.1 to Main Street Capital Corporation's Quarterly Report on Form 10-Q for the quarter ended June 30, 2017 filed on August 4, 2017 (File No. 1-33723))


            10.14*†


            Main Street Capital Corporation 2015 Equity and Incentive Plan (previously filed as Exhibit 4.4 to Main Street Capital Corporation'sCorporation’s Registration Statement on Form S-8 filed on May 5, 2015 (Reg. No. 333-203893))


            10.7*†


            10.15*†



            Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan (previously filed as Exhibit 4.5 to Main Street Capital Corporation'sCorporation’s Registration Statement on Form S-8 filed on May 5, 2015 (Reg. No. 333-203893))


            10.8*†


            10.16*†



            Form of Restricted Stock Agreement for Executive Officers — Main Street Capital Corporation 2015 Equity and Incentive Plan (previously filed as Exhibit 4.6 to Main Street Capital Corporation'sCorporation’s Registration Statement on Form S-8 filed on May 5, 2015 (Reg. No. 333-203893))


            10.9*†


            10.17*†



            Form of Restricted Stock Agreement for Non-Employee Directors — Main Street Capital Corporation 2015 Non-Employee Director Restricted Stock Plan (previously filed as Exhibit 4.7 to Main Street Capital Corporation'sCorporation’s Registration Statement on Form S-8 filed on May 5, 2015 (Reg. No. 333-203893))

            190



            Table of Contents

            Exhibit
            Number
            Description


            10.22*


            Assignment and Assumption of Investment Sub-Advisory Agreement dated December 31, 2013 by and among MSC Adviser I,  LLC, HMS Adviser, LP, Main Street Capital Partners, LLC, Main Street Capital Corporation and HMS Income Fund, Inc. (previously filed as Exhibit 10.1410.1 to Main Street Capital Corporation's AnnualCorporation’s Current Report on Form 10-K for the year ended December 31, 20138-K filed on February 28, 2014November 3, 2020 (File No. 1-33723))


            10.14*†


            10.23*†



            Main Street Capital Corporation Deferred Compensation Plan Adoption Agreement and Plan Document (previously filed as Exhibit 4.1 to Main Street Capital Corporation'sCorporation’s Registration Statement on Form S-8 filed on December 18, 2015 (File No. 333-208643))


            10.15*


            10.24*



            Form of Equity Distribution Agreement dated May 10, 201716, 2019 (previously filed as Exhibit (h)(3)1.1 to Main Street Capital Corporation's Post-Effective Amendment No. 11 to the Registration StatementCorporation’s Current Report on Form N-28-K filed on May 10, 2017 (Reg.16, 2019 (File No. 333-203147)1-33723))


            14.1**


            12.1



            Computation of Ratios of Earnings to Fixed Charges



            14.1*


            Code of Business Conduct and Ethics (previously filed as Exhibit 14.1 to Main Street Capital Corporation's Quarterly Report on Form 10-Q for the quarter ended September 30, 2017 filed on November 3, 2017 (File No. 1-33723))


            21.1**


            21.1



            List of Subsidiaries


            23.1**


            23.1



            Consent of Grant Thornton LLP, independent registered public accounting firm


            31.1**


            31.1



            Rule 13a - 14(a)13a-14(a)/15d - 14(a)15d-14(a) certification of Chief Executive Officer


            31.2**


            31.2



            Rule 13a - 14(a)13a-14(a)/15d - 14(a)15d-14(a) certification of Chief Financial Officer


            32.1**


            32.1



            Section 1350 certification of Chief Executive Officer


            32.2**


            32.2



            Section 1350 certification of Chief Financial Officer


            *
            Exhibit previously filed with the Securities and Exchange Commission, as indicated, and incorporated herein by reference.

            Management contract or compensatory plan or arrangement.

            *

            Exhibit previously filed with the Securities and Exchange Commission, as indicated, and incorporated herein by reference.

            **

            Furnished herewith.

            Management contract or compensatory plan or arrangement.


            191


            SIGNATURES


            SIGNATURES

            Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

            MAIN STREET CAPITAL CORPORATION




            By:



            /s/ VINCENT D. FOSTER


            DWAYNE L. HYZAK

            Vincent D. Foster
            Chairman and Dwayne L. Hyzak

            Chief Executive Officer and Director

            Date: February 25, 2022

            Date: February 23, 2018

            Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

            Signature
            Title
            Date





            Signature

            Title

            Date

            /s/ VINCENT D. FOSTER

            Vincent D. Foster
            Chairman and Chief Executive Officer
            (principal executive officer)
            February 23, 2018

            /s/ DWAYNE L. HYZAK


            Chief Executive Officer and Director

            February 25, 2022

            Dwayne L. Hyzak



            President, Chief Operating Officer and Director

            (principal executive officer)



            February 23, 2018


            /s/ BRENT D. SMITH


            Brent D. SmithJESSE E. MORRIS



            Chief Financial Officer, and Treasurer
            Chief Operating Officer

            February 25, 2022

            Jesse E. Morris

            (principal financial officer)



            February 23, 2018


            /s/ SHANNON D. MARTIN


            Shannon D. MartinLANCE A. PARKER



            Vice President, Chief Accounting Officer

            February 25, 2022

            Lance A. Parker

            (principal accounting officer)



            February 23, 2018


            /s/ JOSEPH E. CANON

            Joseph E. Canon



            Director



            February 23, 2018


            /s/ MICHAEL APPLING JR.


            Michael Appling Jr.VINCENT D. FOSTER



            Director

            Chairman of the Board



            February 23, 201825, 2022


            Vincent D. Foster

            /s/ ARTHUR L. FRENCH


            Director

            February 25, 2022

            Arthur L. French



            Director



            February 23, 2018


            /s/ J. KEVIN GRIFFIN


            Director

            February 25, 2022

            J. Kevin Griffin



            Director



            February 23, 2018


            /s/ JOHN E. JACKSON


            Director

            February 25, 2022

            John E. Jackson



            Director



            February 23, 2018


            /s/ BRIAN E. LANE


            Director

            February 25, 2022

            Brian E. Lane



            Director



            February 23, 2018


            /s/ STEVEN B. SOLCHER

            Steven B. Solcher



            Director



            February 23, 2018


            /s/ VALERIE L. BANNER


            Valerie L. BannerKAY MATTHEWS



            Director



            February 23, 201825, 2022

            Kay Matthews

            /s/ DUNIA A. SHIVE

            Director

            February 25, 2022

            Dunia A. Shive

            /s/ STEPHEN B. SOLCHER

            Director

            February 25, 2022

            Stephen B. Solcher


            192