UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

[X]QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31,June 30, 2019

OR

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

Commission file number: 001-38015

Sigma Labs, Inc.

(Exact name of registrant as specified in its charter)

3900 Paseo del Sol

Santa Fe, NM 87507

(Address of principal executive offices)

(505) 438-2576

(Registrant’s telephone number)

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

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 [X] No[  ]

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 [X] No[No [  ]

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

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.[  ]

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

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

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date: As of MayAugust 14, 2019, the issuer had 10,937,59013,812,590 shares of common stock outstanding.

SIGMA LABS, INC.

FORM 10-Q

TABLE OF CONTENTS

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS.

Sigma Labs, Inc.

Condensed Balance Sheets

(Unaudited)

See accompanying notes to condensed financial statements.

Sigma Labs, Inc.

Condensed Statements of Operations

(Unaudited)

See accompanying notes to condensed financial statements.

Sigma Labs, Inc.

Condensed Statements of Cash Flows

(Unaudited)

See accompanying notes to condensed financial statements.

Sigma Labs, Inc.

Statement of Stockholders'Stockholders’ Equity

For Thethe Three and Six Months Ended March 31,June 30, 2019 and 2018

(Unaudited)

(Unaudited)

See accompanying notes to condensed financial statements.

SIGMA LABS, INC.

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

MARCH 31,June 30, 2019

(Unaudited)

NOTE 1 - Summary of Significant Accounting Policies

Nature of Business -Sigma Labs, Inc., formerly named Framewaves, Inc., a Nevada corporation, was founded by a group of scientists, engineers and businessmen to develop and commercialize novel and unique manufacturing and materials technologies. Sigma believes that some of these technologies will fundamentally redefine conventional quality assurance and process control practices by embedding them into the manufacturing processes in real time, enabling process intervention and ultimately leading to closed loop process control. The Company anticipates that its core technologies will allow its clientele to combine advanced manufacturing quality assurance and process control protocols with novel materials to achieve breakthrough product potential in many industries including aerospace, defense, oil and gas, bio-medical, and power generation. The terms the “Company,” “Sigma,” “we,” “us” and “our” refer to Sigma Labs, Inc.

Basis of Presentation - The accompanying financial statements have been prepared by the Company in accordance with Generally Accepted Accounting Principles (“GAAP”) in the United States of America. In the opinion of management, all adjustments (which include only normal recurring adjustments) necessary to present fairly the financial position, results of operations and cash flows at March 31,June 30, 2019 and 2018 and for the periods then ended have been made. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles have been condensed or omitted. The Company suggests these condensed financial statements be read in conjunction with the December 31, 2018 audited financial statements and notes thereto included in the Company’s Form 10-K. The results of operations for the periods ended March 31,June 30, 2019 and 2018 are not necessarily indicative of the operating results for the full year.

Reclassification- Certain amounts in prior-period financial statements have been reclassified for comparative purposes to conform to presentation in the current-period financial statements.

Loss Per Share - The computation of loss per share is based on the weighted average number of shares outstanding during the period in accordance with ASCAccounting Standards Codification (“ASC”) Topic No. 260, “Earnings Per Share.” Shares underlying the CompaniesCompany’s outstanding warrants, options or note conversion features were excluded due to the anti-dilutive effect they would have on the computation. At March 31,June 30, 2019 the Company had 3,400,6103,620,610 warrants, 1,036,2231,108,192 stock options and a $50,000 Convertible Note Payable outstanding. The total number of shares of common stock underlying these instruments is 4,461,833.4,753,802. At March 31,June 30, 2018 the Company had 1,645,500350 convertible preferred stock shares, 3,228,500 warrants, 493,626664,707 stock options and a $100,000$50,000 Convertible Note Payable outstanding. The total number of shares of common stock underlying these instruments is 2,139,126.4,268,207.

The following data shows the amounts used in computing loss per share and the effect on income and the weighted average number of shares of dilutive potential common stock for the periods ended March 31,June 30, 2019 and 2018:

Recently Enacted Accounting Standards - The FASB established the Accounting Standards Codification (“Codification” or “ASC”)ASC as the source of authoritative accounting principles recognized by the FASB to be applied by nongovernmental entities in the preparation of financial statements in accordance with generally accepted accounting principles in the United States (“GAAP”).GAAP. Rules and interpretive releases of the Securities and Exchange Commission (“SEC”) issued under authority of federal securities laws are also sources of GAAP for SEC registrants.

In February 2016, the FASB issued ASU 2016-02, “Leases” which was issued to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The amendments in ASU 2016-02 are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. The Company has evaluated this standard and determined that it will not currently require any adjustment to Sigma’s financial reporting.

Accounting Estimates - The preparation of financial statements in conformity with generally accepted accounting principles in the United States requires management to make estimates and assumptions that affect certain reported amounts of assets and liabilities, the disclosures of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimated by management. Significant accounting estimates that may materially change in the near future are impairment of long-lived assets, values of stock compensation awards and stock equivalents granted as offering costs, and allowance for bad debts and inventory obsolescence.

NOTE 2 - Notes Receivable

On May 1, 2017, the Company made a loan in the principal amount of $250,000 to Jaguar Precision Machine, LLC, a New Mexico limited liability company (“Jaguar”), pursuant to a Secured Convertible Promissory Note dated May 1, 2017 delivered by Jaguar to the Company. The loan bears interest at the rate of 7% per annum, iswas originally due and payable in full on August 1, 2018, is secured by certain assets of Jaguar, and is convertible at the Company’s option into 10% of the outstanding shares of the common stock of Jaguar unless Jaguar exercises its right under specified circumstances to repay all principal and accrued interest on the loan. On June 15, 2018, the Company received a $150,000 payment from Jaguar, $17,803 of which was applied to accumulated interest through that date and $132,197, the balance, of which, was applied to the principal balance of the note. On February 14,In the first six months of 2019 apayments totaling $45,000 were received. The payments were applied first to the accumulated interest balance on the note and then to the remaining principal payment of $15,000 was received.balance. The holder of the promissory note has committed to paying the remaining principal balance along with accumulated interest on or before July 31,September 30, 2019. The March 31,June 30, 2019 principal balance of the note was $102,803$79,875 and the accumulated interest balance due was $5,671.

$166.

NOTE 3 – Inventory

At June 30, 2019 and December 31, 2018, the Company’s inventory was comprised of:

NOTE 4 - Notes Payable

At March 31,June 30, 2019 the Company had a $50,000 convertible note outstanding due on April 18, 2019. On April 15, 2019 the Company entered into an amendment to such note, extending the due date to October 18, 2019. At March 31,June 30, 2019 the accumulated interest balance on the note was $1,250. The accrued interest amount was paid to the holder in April 2019.$1,028.

NOTE 45 - Stockholders’ Equity

Common Stock

In the first quarter ofJanuary 2018, the Company issued 23,256 shares of common stock for servicesto directors valued at $1.72 per share, or $40,000.

In April 2018, the Company issued 176,744 shares of common stock to directors valued at $1.22 per share, or $216,264.

Between May 29, 2018 and June 1, 2018, we issued an aggregate of 1,000,000 shares of common stock upon conversion of the 1,000 shares of Series B Preferred Stock issued on April 6, 2018 (as described below under “Preferred Stock”).

In May 2018 the holder of our Note Payable converted $50,000 of the principal balance of the Note into 25,000 shares of common stock and exercised its warrant on a cashless basis resulting in the issuance of 4,800 shares of common stock.

On June 26, 2018, as part of its public offering of equity securities, the Company issued 2,040,000 shares of common stock and warrants to purchase a total of 717,000 shares of common stock (including the warrants described under “Preferred Stock” below that were issued on June 26, 2018). Each warrant has an initial exercise price of $1.08 per share. The net proceeds to the Company were approximately $2,068,900 after commissions and other offering expenses. The Company also issued Dawson James Securities, Inc., its placement agent in the public offering, a Unit Purchase Option to acquire up to 191,200 Units, at an exercise price of $1.25 per Unit, consisting of 191,200 shares of common stock and warrants to purchase up to 57,360 shares of common stock as compensation.

In January 2019, the Company issued a total of 200,000 shares of common stock to directors valued at $1.50 per share, or $300,000, with such shares to vest ratably over four quarterly installments, subject in each case to such director’s continuing service as a director.

Also in January 2019, the Company issued 88,431 shares of common stock upon the cashless exercise of Unit Purchase Options issued in our June 2018 public offering.

In January and February 2019, the Company issued a total of 70,230 shares of common stock upon the exercise of 70,230 warrants having an exercise price of $1.08 resulting in gross cash proceeds of $75,848.

In March 2019, the Company issued 1,500 shares of common stock to the Company’s Vice President of Business Development in connection with his achievement of performance milestones, with such shares vesting immediately.

Also in March 2019, the Company closed a public offering of equity securities in which it issued 1,400,800 shares of common stock and warrants to purchase a total of 420,240 shares of common stock resulting in net proceeds of approximately $1,679,230, after deducting placement agent commissions and other offering expenses payable by the Company.

In May 2019, the Company closed a private placement of equity securities in which it issued 400,000 shares of common stock and warrants to purchase a total of 220,000 shares of common stock resulting in net proceeds of approximately $515,000, after deducting placement agent commissions and other offering expenses payable by the Company.

Deferred Compensation

In previous years and in the threesix months ended March 31,June 30, 2019, the Company issued to various employees, directors, and contractors shares of the Company’s common stock, subject to restrictions, pursuant to the 2013 Equity Incentive Plan (the “2013 Plan”). Such shares were valued at the fair value at the date of issue. The fair value was expensed as compensation over the vesting period and recorded as a reduction ofan increase to stockholders’ equity. During the threesix months ended March 31,June 30, 2019 and March 31,June 30, 2018, $78,000$153,000 and $21,217,$156,875, respectively, of the unvested compensation cost related to these issues was recognized.

AsAt June 30, 2019, there was $150,000 of March 31, 2019 and December 31, 2018, the balance of unvestedunrecognized deferred compensation expense to be recognized was $225,000 and $21,355, respectively, and is recorded as prepaid stock compensation asover the remainder of those dates.

the year.

Stock Options

In October 2018, at the Annual Meeting of Stockholders of the Company, the Company’s stockholders approved an amendment to the 2013 Plan to increase the number of shares of the Company’s common stock reserved for issuance under the 2013 Plan by 900,000 shares of our common stock to a total of 1,650,000 shares. As of March 31,June 30, 2019, an aggregate of 750 shares and 97,42925,460 shares of common stock were reserved for issuance under the 2011 Plan and the 2013 Plan, respectively.

During the threesix months ended March 31,June 30, 2019, the Company granted options to purchase a total of 209,956286,925 shares of common stock to 18 employees and 1 consultant with vesting periods ranging from immediately upon issuance to 4 years beginning January 2019.

During the threesix months ended March 31,June 30, 2018, the Company granted options to purchase a total of 193,688374,769 shares of common stock to 1015 employees and 1 consultant with vesting periods ranging from 22 daysimmediately upon issuance to 4 years beginning March 2018.

The Company generally grants stock options to employees and directors at exercise prices equal to the fair market value of the Company’s stock on the dates of grant. Stock options are typically granted throughout the year and generally vest over four years of service and expire tenfive years from the date of the award, unless otherwise specified. The Company recognizes compensation expense for the fair value of the stock options over the requisite service period for each stock option award.

Total share-based compensation expense included in the consolidated statements of operations for the threesix months ended March 31,June 30, 2019 and 2018 is $254,206$474,566 and $161,522,$584,589 of which $176,206$321,149 and $140,305$438,039 is related to stock options, respectively.

The fair value of share-based awards was estimated using the Black-Scholes model with the following weighted-average assumptions for the threesix months ended March 31,June 30, 2019 and 2018:

Assumptions:

Option activity for the threesix months ended March 31,June 30, 2019 and the year ended December 31, 2018 was as follows:

The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the quoted price of our common stock for those awards that have an exercise price currently below the $1.68$1.40 closing price of our Common Stockcommon stock on March 29,June 30, 2019. 165,20822,916 of the 2019 option grants have an exercise price currently below $1.68.$1.40.

At March 31,June 30, 2019, there was $414,562$348,220 of unrecognized share-based compensation expense related to unvested share options with a weighted average remaining recognition period of 3.213.02 years.

Warrants

Warrant activity for the threesix months ended March 31,June 30, 2019 and 2018 was as follows:

NOTE 56 - Subsequent Events

In AprilJuly and MayAugust of 2019, the Company granted our CEO and President two options to purchase up to 22,916 and 22,922 shares of our common stock, respectively under our 2013 Equity Incentive Plan in connection with his employment arrangement. The options have an exercise price per share equal to $1.47$1.40 and $1.50,$0.74, respectively, and each is fully vested.

On MayIn July of 2019, at the Annual Meeting of Stockholders of the Company, the Company’s stockholders approved an amendment to the 2013 Equity Incentive Plan to increase the number of shares of the Company’s common stock reserved for issuance under the 2013 Plan by 750,000 shares of our common stock to a total of 2,400,000 shares.

In July of 2019, the Company granted options to purchase a total of 97,500 shares of common stock to 7 employees and 1 consultant with vesting periods ranging from immediately upon issuance to 4 years beginning July 2020.

In August of 2019, the Company closed a private placementpublic offering of equity securities in which it issued 400,000 shares of common stock and warrants to purchase a total of 200,0002,875,000 shares of common stock resulting in net proceeds of approximately $515,000,$1,971,000, after deducting placement agent feescommissions and other offering expenses payable by the Company.

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

Forward-looking statements

This Quarterly Report, including any documents which may be incorporated by reference into this Report, contains “Forward-Looking Statements.” All statements other than statements of historical fact are “Forward-Looking Statements” for purposes of these provisions, including any projections of revenue or other financial items, any statements of the plans and objectives of management for future operations, any statements concerning proposed new products or services, any statements regarding future economic conditions or performance, and any statements of assumptions underlying any of the foregoing. All Forward-Looking Statements included in this document are made as of the date hereof and are based on information available to us as of such date. We assume no obligation to update any Forward-Looking Statement. In some cases, Forward-Looking Statements can be identified by the use of terminology such as “may,” “will,” “expects,” “plans,” “anticipates,” “intends,” “believes,” “estimates,” “potential,” or “continue,” or the negative thereof or other comparable terminology. Although we believe that the expectations reflected in the Forward-Looking Statements contained herein are reasonable, there can be no assurance that such expectations or any of the Forward-Looking Statements will prove to be correct, and actual results could differ materially from those projected or assumed in the Forward-Looking Statements. Future financial condition and results of operations, as well as any Forward-Looking Statements are subject to inherent risks and uncertainties, including any other factors referred to in our press releases and reports filed with the Securities and Exchange Commission (“SEC”). All subsequent Forward-Looking Statements attributable to the Company or persons acting on its behalf are expressly qualified in their entirety by these cautionary statements. Additional factors that may have a direct bearing on our operating results are described under the caption “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2018 and elsewhere in this report.

Corporation Information

We were incorporated as Messidor Limited in Nevada on December 23, 1985 and changed our name to Framewaves Inc. in 2001. On September 27, 2010, we changed our name from Framewaves Inc. to Sigma Labs, Inc. We commenced our current business operations in 2010.

Our principal executive offices are located at 3900 Paseo del Sol, Santa Fe, New Mexico 87507, and our telephone number is (505) 438-2576. Our website address iswww.sigmalabsinc.com. The Company’s annual reports, quarterly reports, current reports on Form 8-K and amendments to such reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (the “Exchange Act”), and other information related to the Company, are available, free of charge, on that website as soon as we electronically file those documents with, or otherwise furnish them to, the SEC. The Company’s website and the information contained therein, or connected thereto, are not and are not intended to be incorporated into this Quarterly Report on Form 10-Q.

2019Developments

In 2019, we reported several events, including the following (in reverse chronological order):

On August 13, 2019, we announced that we have been selected by a major international OEM machine manufacturer to install our proprietary PrintRite3D® products. As part of the agreement, the OEM will complete our Rapid Test and Evaluation program and will install the PrintRite3D® in two different countries for analysis and proof-of-performance purposes.

On August 2, 2019, we closed a public offering of equity securities in which we issued 2,875,000 shares of common stock resulting in net proceeds of approximately $1,971,000, after deducting placement agent commissions and other offering expenses payable by us.

On July 30, 2019, we announced that we will work with Airbus to complete a Test and Evaluation Program of our new PrintRite3D® version 5.0 hardware and software followed by a validation phase on a powderbed fusion printer.

On June 18, 2019, we announced that we signed a non-binding Memorandum of Understanding with Materialise NV to cooperate in the integration of their MCP Controller with our PrintRite3D^® technology. Combining the sophisticated control technology with in-situ process monitoring for metal additive manufacturing will give customers maximal control on the production process, allowing them to become even more productive.

On May 14, 2019, we announced that we will launch Version 5.0 of our PrintRite3D^® platform at the RAPID+TCT 2019 Additive Manufacturing Conference in Detroit on May 21-23, 2019.

On April 30, 2019, we announced that the Company’s PrintRite3D^® software has been shown to ensure process consistency and product quality in metal additive manufacturing, according to a research study sponsored by the Defense Advanced Research Project Agency (DARPA) Open Manufacturing Program and conducted in tandem with Honeywell Aerospace at Honeywell’s Advanced Manufacturing Engineering Center. The paper, titled “LPBF [Laser Powder Bed Fusion] Right the First Time—theTime-the Right Mix Between Modeling and Experiments,” discusses the validation involved in manufacturing a challenging metal component.

On March 26, 2019, we announced the appointment of the Company’s new Business Development Manager, Americas, who will be responsible for developing key accounts through the Company’s Rapid Test and Evaluation Program and for bringing PrintRite3D INSPECT^®into deployment across serial production operations in North and South America.

On March 15, 2019, we closed a public offering of equity securities resulting in net proceeds of approximately $1,679,230, after deducting placement agent commissions and other offering expenses payable by us.

On February 26, 2019, we announced that we were named a member of the Manufacturing Technology Centre (“MTC”) located at Ansty Park, Coventry, UK. Being a member of the MTC enables us to share and provide expertise and solutions for a number of MTC’s projects and also network with MTC’s existing members, including some of the UK’s leading aerospace companies.

On February 12, 2019, we announced that we were named a member of the Additive Alliance of Fraunhofer IAPT, a leading network for AM.additive manufacturing (“AM”). As the first US company to be granted a membership in the Alliance, Sigma became part of the global research consortium to advance the development and implementation of AM. The membership enables us to demonstrate our PrintRite3D^® technology to key players in the market of metal AM.

On February 5, 2019, we announced that the U.S. Patent and Trademark Office has issued a Notice of Allowance for U.S. Patent Application No. 15/276,452, “Optical Manufacturing Process Sensing and Status Indication System.” The patent application covers a system of sensors configured to measure optical emissions generated by a scanning heat source during an additive manufacturing (AM) process and to analyze the data collected.

On January 17, 2019, we announced we were awarded a Test and Evaluation Program contract with a leading global materials and service provider in AM. The program is designed to demonstrate the value of Sigma’s PrintRite3D^® product capabilities and performance and to validate and quantify the repeatability and variability of AM production processes. So far we have had delays, diversions, and logistical alterations typical of many newly launched programs, yet importantly, there have been no negative performance issues in the RTE test results. The prototype RTE installation was with Materialise in 2018 and culminated in the project announced in June 2019 to integrate Sigma’s technology with Materialise’s MCP control system. As of the date of this Quarterly Report, of our two most advanced RTEs in process, one states an expectation to add a second PrintRite3D® installation, and the other expects to enter the phase two evaluation (multiple machines of differing OEM brands) over the next 60-120 days.

The size and quality of the demanding high technology ‘brand name’ companies currently participating in, along with those teed-up to enter the RTE program, appears to confirm that the program is Sigma’s most auspicious highway to success and material revenue driving into 2020 and beyond. The Airbus RTE announcement on July 30, 2019 followed by our OEM double-RTE announcement on August 13, 2019 demonstrates that the market’s uptake of this program initiative is accelerating.

Critical Accounting Policies

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts in the accompanying consolidated financial statements and related notes. These estimates and assumptions have a significant impact on our consolidated financial statements. Actual results could differ materially from those estimates. Critical accounting policies are those that require the most subjective and complex judgments, often employing the use of estimates about the effect of matters that are inherently uncertain. Our significant accounting policies are disclosed in Note 1 to the Financial Statements included in this Quarterly Report on Form 10-Q. However, we do not believe that there are any alternative methods of accounting for our operations that would have a material effect on our financial statements.

Results of Operations

Three Months Ended June 30, 2019 and June 30, 2018

We expect to generate revenue primarily by selling and licensing our IPQA technologies, selling technical support services, contract manufacturing and selling specialty parts and studies to businesses that seek to improve their manufacturing production processes and production-run quality yields. Our ability to generate revenues in the future will depend on our ability to further commercialize and increase market presence of our PrintRite3D® technologies, and it will depend on whether key prospective customers continue to move from AM metal prototyping to production.

During the three months ended March 31,June 30, 2019, we recognized revenue of $64,450,$33,582, as compared to $103,415$98,663 in revenue recognized during the same period in 2018, a reduction of $38,965. $25,715$65,081. $10,000 of the reduction is directly attributable to the absence of any government program work in 2019, while an additional $8,000the remaining 55,000 of it is attributable to the 100% dedication of our printer to Internal R&D in the first three monthssecond quarter of 2019 as we accelerated development of the Inspect product.product, as well as an overall decline in AM revenue.

Our Cost of Revenue for the three months ended March 31,June 30, 2019 and 2018 was $96,555$60,625 and $73,795,$68,568, respectively, an increasea reduction of $24,685.$7,943. The increased cost despite decreased revenuedecrease in our gross margin is primarily attributable to the additional travel and labor costs associated with the on-site and remote collaboration involved in initiation of the Company’s Rapid Test and Evaluation programs.

Sigma’s total operating expenses for the three months ended March 31, 2019 were $1,507,098 as compared to $1,177,130 for the same period in 2018, an increase of $391,692.

Salary and benefits costs were $512,560 for the three months ended March 31, 2019 compared to $398,657 for the same period in 2018, an increase of $113,903. This 29% cost increase correlates to an increase of 5.7 full-time equivalent employees between the two periods which is a 45% increase in employee count. 

Stock-based compensation was $254,206 for the three months ended March 31, 2019 comparted to $161,522 for the same period in 2018, a $92,684, or 57%, increase.

Sigma’s total operating expenses for the three months ended June 30, 2019 were $1,569,064 as compared to $1,422,511 for the same period in 2018, an increase of $146,553.

Salary and benefits costs were $581,356 for the three months ended June 30, 2019 compared to $426,049 for the same period in 2018, an increase of $155,307. This 36% cost increase correlates to a net increase of five full-time equivalent employees between the two periods which is a 31% increase in employee count.

Stock-based compensation was $220,360 for the three months ended June 30, 2019 compared to $423,067 for the same period in 2018, a $202,707, or 48%, decrease, primarily due to 2018 second quarter vesting of options granted to our former CEO in connection with his amended employment agreement.

Research and development expenditures of $145,272$118,845 were incurred during the three months ended March 31,June 30, 2019 compared to $121,977$95,049 in the same period of 2018, a 19%25% increase. The increase primarily results from $18,796the purchase of consulting fees paid to a visualization subject matter expert necessary for the developmentupgraded PrintRite3D^® components and various pieces of Version 5.0specialized equipment as part of our PrintRite3D^® platform to be launched at the RAPID+TCT 2019 Additive Manufacturing Conference on May 21-23, 2019. continued acceleration of technology development.

Outside services fees incurred in the three months ended March 31,June 30, 2019 were $342,359$218,919 compared to $318,822$177,929 incurred during the same period in 2018, a 7%23% increase.

The increase is primarily attributable to recruiting fees for senior employees.

Office expense is the other classification of expenditures that increased materially, $71,004, or 75%, in the first three months of 2019 compared to the first three months of 2018, to $166,110 from $95,106. The primary increases are for travel costs, $38,176, and hardware and software upgrades and additions, $20,009.

Inexpenses incurred during the three months ended March 31,June 30, 2019 our net other income & expense was a net income of $55,091were $184,068 compared to net$110,936 incurred during the same period in 2018, an increase of $73,132, or 66%. The increase is primarily due to increased travel costs of $59,936, and other expensemiscellaneous office expenses of $23,366 in 2018. The 2019 net positive contribution results primarily from the receipt of a $51,877 New Mexico state job incentive credit. The 2018 expense was comprised of a $36,733 write-off of patent and patent application costs offset by interest income of $13,167 on the outstanding notes receivable. $13,196.

Sigma’s net loss for the three months ended March 31,June 30, 2019 totaled $1,484,112$1,593,491 as compared to $1,170,876$1,388,804 for the same period of 2018, a $313,236$204,687 increase. The reduction in gross profit contributed $57,138 to the increased loss, while increased operating expenses contributed $146,553 to the increased loss.

Six Months Ended June 30, 2019 and 2018

During the six months ended June 30, 2019, we recognized revenue of $98,032 compared to $202,078 during the same period of 2018. The primary contributors to the $104,046 reduction were revenue decreases of $32,300 from the absence of any government work, $63,000 is attributable to the 100% dedication of our printer to Internal R&D in 2019, and the balance from an overall decline in AM revenue.

Our cost of revenue for the six months ended June 30, 2019 was $157,180 compared to $142,363 during the same period in 2018. The increase of $14,817 is primarily due to the additional travel and labor costs associated with the on-site and remote collaboration involved in initiation of the Company’s Rapid Test and Evaluation programs.

Sigma’s total operating expenses for the six months ended June 30, 2019 were $3,076,162 compared to $2,599,641 for the same period in 2018, a $476,521 increase.

Payroll costs for the six months ended June 30, 2019 were $1,093,916 compared to $824,706 for the same period in 2018. The $269,210 increases result primarily from the earlier mentioned addition of five employees since the end of the second quarter of 2018. Stock-based compensation for the six months ended June 30, 2019 was $474,566 compared to $584,589 for the same period in 2018, a $110,023 decrease, primarily due to the vesting of options granted to our former CEO in connection with his amended employment agreement in 2018.

During the six months ended June 30, 2019, Sigma incurred research and development expenditures of $264,177 compared to $217,022 in the same period of 2018. The $47,155 increase in these expenditures during the first six months of 2019 resulted primarily from the purchase of upgraded servers and various pieces of specialized equipment as part of our continued acceleration of technology development, as well as $35,333 of consulting fees paid in connection with the development of Version 5.0 of our PrintRite3D^®platform.

Sigma’s public company and investor relation fees incurred in the six months ended June 30, 2019 were $315,107, compared to $283,596 during the same period in 2018. The $31,511 increase in the six-month comparative expenditures results primarily from an increase in advertising expenses of $64,600, partially offset by a decrease in shareholder services expenses of $37,100.

Outside services fees incurred in the six months ended June 30, 2019 were $403,489, compared to $316,352 incurred during the same period in 2018, a 28% increase. Consulting fees increased by $67,552 due to the addition of an application engineer consultant, and recruiting fees increased by $19,428.

During the six months ended June 30, 2019, Sigma’s office expenses were $350,178 compared to $206,042 in the same period of 2018. The $144,136 increase in these expenditures primarily resulted from additional travel expense related to both a more aggressive outreach to prospective OEM, service bureau and end user customers and our expansion into the European market.

In the six months ended June 30, 2019, our net other income & expense was net income of $57,707, as compared to net expense of $19,754 during the same period in 2018. The six-month 2019 net other income is primarily comprised of $52,000 in New Mexico state job incentive credits received. The net other expense for the same period in 2018 is primarily due to a $36,733 write-off of accounting software, partially offset by interest income of $17,086 on the then outstanding notes receivable.

Sigma’s net loss for the six months ended June 30, 2019 totaled $3,077,603 as compared to $2,559,680 for the same period in 2018, a $517,923 increase. Contributing to this increase was an increase in our operating loss contributed $391,693 to the lossof $595,384, consisting of a decrease in gross profit of $118,863, together with an increase whichin operating expenses of $476,521. This was reducedpartially offset by the $78,457an increase in other income and expenses.expense of $77,461.

We financed our operations during the three and six months ended June 30, 2019 and 2018 primarily from revenue generated from PrintRite3D® system sales and engineering consulting services we provided to third parties during these periods and through sales of our common and preferred stock. We expect that our revenue will increase in future periods as we seek to further commercialize and expand our market presence for our PrintRite3D®-related technologies and obtain new contract manufacturing orders in connection with our EOS M290.

Liquidity and Capital Resources

As of March 31,June 30, 2019, we had $1,907,362$696,390 in cash and working capital of $1,549,844,$685,409, as compared with $1,279,782 in cash and working capital of $1,052,017 as of December 31, 2018.

Our major sources of funding have been proceeds from public and private offerings of our equity securities (both common stock and preferred stock), and from warrant exercises. On

In March 15, 2019, the Company closed a public offering of equity securities in which it issued 1,400,800 shares of common stock and warrants to purchase a total of 420,240 shares of common stock resulting in net proceeds of approximately $1,679,330. $1,679,330, after deducting placement agent commissions and other offering expenses payable by the Company.

In May 2019, the Company closed a private placement of equity securities in which it issued 400,000 shares of common stock and warrants to purchase a total of 220,000 shares of common stock resulting in net proceeds of approximately $515,000, after deducting placement agent commissions and other offering expenses payable by the Company.

In August 2019, the Company closed a public offering of equity securities in which it issued 2,875,000 shares of common stock resulting in net proceeds of approximately $1,971,000, after deducting placement agent commissions and other offering expenses payable by the Company.

During the remainder of 2019, we expect to sustain our operations and our commercialization and marketing efforts without a material increase in our cash burn rate. We expect that enhancements of our IPQA®-enabled PrintRite3D® technology that were developed substantially in fiscal 2018 and 2019 and brought to market commencing largely in November 2018 will enable us to further commercialize this technology for the AM metal market in 2019.2019 and beyond. However, until commercialization of our full suite of PrintRite3D® technologies, we plan to continue funding our development activities and operating expenses by licensing our PrintRite3D® systems and supporting field services, as applicable, and providing PrintRite3D®-enabled engineering consulting services concerning our areas of expertise (materials and manufacturing quality assurance and process control technologies) and contract manufacturing for metal AM, and through the use of proceeds from sales of our securities.

Net Cash Used in Operating Activities

Net cash used in operating activities during the threesix months ended March 31,June 30, 2019 increased to $1,066,769$2,737,650 from $612,249$1,472,519 during the same period in 2018, a $454,520$1,265,131 increase. Increased net loss contributed $256,223$517,923 toward this use of cash, and increased inventory purchases contributed $133,109.$377,440 as a result of our finished goods ramp program, and a net decrease of accounts payable and accrued expenses contributed $164,370.

Net Cash Used/Provided by Investing Activities

Net cash used by investing activities during the threesix months ended March 31,June 30, 2019 was $60,829,$115,920, which compares to $443,894$530,082 of cash provided by investing activities during the same period of 2018, a decrease of $504,723.$646,002. This is primarily attributable to the March 2018 receipt of payment in full of a then outstanding $500,000 loan receivable.

Net Cash Used/Provided by Financing Activities

Cash provided by financing activities during the threesix months ended March 31,June 30, 2019 increaseddecreased to $1,755,178$2,270,178 from $0$2,946,400 during the same period in 2018 due to the receipt of 1,961,220 of proceeds less $281,980 of offering costs, in connection with our March 2019 public offering and $75,848 inlower proceeds from the exercise of warrants to purchase common stockour public and private securities offerings in January and February of 2019. There were no financing activities in the first quarter of 2018. 

The Company anticipates continued losses in 2019, due towith any expected increased revenues offset by increased salaries and related expenses in connection with additional employees and potential acquisitions (although there are no agreements with respect to the acquisition by the Company of any third party, and there can be no assurance that any agreements will be entered into or, if entered into, that any acquisition or other transaction will be consummated).employees.

We have no credit lines as of May 12,August 14, 2019, nor have we ever had a credit line since our inception.

Based on the funds we have as of MayAugust 14, 2019, and the proceeds we expect to receive from rapid test and evaluation engagements for our updated PrintRite3D® hardware and software technology, sales of contract AM manufacturing for metal AM parts, possible sales of our securities and from the repayment of loans made by Sigma, we believe that we will have sufficient funds to pay our administrative and other operating expenses through 2019. Our ability to continue to fund our liquidity and working capital needs will be dependent upon the success of and revenues from existing and future PrintRite3D®-proof of concept contracts, follow-on contracts resulting from successful proof of concept engagements, possible strategic partnerships, contract manufacturing orders in connection with our EOS M290, and possibly by obtaining additional capital from the sale of securities or by borrowing funds from lenders to fulfill our business plans. If we issue additional equity or debt securities, stockholders may experience additional dilution or the new equity securities may have rights, preferences or privileges senior to those of existing holders of our common stock. There is no assurance that we will be successful in obtaining additional funding. If we require and fail to obtain sufficient funding when needed, we may be forced to delay, scale back or eliminate all or a portion of our commercialization efforts and operations.

We have no off-balance sheet arrangements as defined in Item 303(a) of Regulation S-K.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

Not applicable.

ITEM 4. CONTROLS AND PROCEDURES.

Evaluation of disclosure controls and procedures and changes in internal controls over financial reporting.

Rule 13a-15(e) under the Exchange Act defines the term “disclosure controls and procedures” as those controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms and that such information is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.

Based upon an evaluation of the effectiveness of our disclosure controls and procedures performed by our management, with the participation of our Chief Executive Officer, and our Principal Financial and Accounting Officer, as of the end of the period covered by this quarterly report, our management concluded that our disclosure controls and procedures are effective at a reasonable assurance level in ensuring that information required to be disclosed by us in our reports is recorded, processed, summarized and reported within the required time periods. In addition, no change in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) occurred during the three months ended March 31,June 30, 2019 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

PART II

OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS.

Not applicable.

ITEM 1A. RISK FACTORS.

Not applicable.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS.

NoneOn May 7, 2019, we issued to an accredited investor 400,000 shares of common stock and warrants to purchase a total of 200,000 shares of common stock. We also Sigma issued to Dawson James Securities, Inc., our placement agent in the foregoing private placement, warrants to purchase up to 20,000 shares of common stock, as compensation. The foregoing securities were issued in reliance upon an exemption from the registration requirements pursuant to Section 4(2) of the Securities Act.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES.

Not applicable.

ITEM 4. MINE SAFETY DISCLOSURES.

Not applicable.

ITEM 5. OTHER INFORMATION.

None.

The Board of Directors of the Company has established July 18, 2019 as the date of the Company’s 2019 annual meeting of stockholders (the “2019 Annual Meeting”).  The 2019 Annual Meeting will be held at 3900 Paseo del Sol, Santa Fe, New Mexico 87507 beginning at 10:00 a.m., Mountain Daylight Time.  The Board of Directors has fixed the close of business on June 5, 2019 as the record date for determining stockholders of the Company who are entitled to vote at the 2019 Annual Meeting, including any adjournments or postponements of the 2019 Annual Meeting.

The Company’s 2018 annual meeting of stockholders (the “2018 Annual Meeting”) was held on October 18, 2018.  Because the date of the 2019 Annual Meeting is being changed by more than 30 days from the one-year anniversary of the 2018 Annual Meeting, the Company is informing stockholders of this change in accordance with Rule 14a-5(f) under the Securities Exchange Act of 1934, as amended, and is informing stockholders of the new dates described below for submitting stockholder proposals and director nominations.

Pursuant to Rule 14a-8(e)(2) of the Securities and Exchange Commission (the “SEC”), a stockholder intending to present a proposal to be included in the proxy statement for the 2019 Annual Meeting must deliver the proposal in writing to our principal executive offices no later than a reasonable time before we begin to print and mail the proxy materials for the 2019 Annual Meeting.  Accordingly, the Board of Directors has fixed the new deadline for the submission of proposals to be included in the proxy statement for the 2019 Annual Meeting as May 30, 2019.  Proposals should be addressed to:  Sigma Labs, Inc.; Attention: Corporate Secretary; 3900 Paseo del Sol; Santa Fe, New Mexico 87507.  Proposals of stockholders must also comply with the SEC’s rules regarding the inclusion of stockholder proposals in proxy materials, and we may omit any proposal from our proxy materials that does not comply with the SEC’s rules.

Pursuant to Rule 14a-4(c)(1) of the SEC, if a stockholder intends to present a proposal or to nominate a director candidate at the 2019 Annual Meeting but not to include the proposal or nomination in our proxy statement, the proposal or director nomination must also be delivered to our principal executive offices, at the address set forth in the preceding paragraph, no later than a reasonable time before the 2019 Annual Meeting.  Accordingly, the Board of Directors has fixed the new deadline for the submission of such a proposal or nomination as May 30, 2019.  The proposal or nomination must also contain the information required by our Bylaws. 

ITEM 6. EXHIBITS.

* Indicates a management contract or compensatory plan or arrangement.

** Filed herewith.

*** Furnished herewith and not “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

SIGNATURES

Pursuant to the requirements 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.