Table of Contents

 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 ____________________________________________________________________________
FORM 10-Q
  ____________________________________________________________________________
(Mark One)
xQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended SeptemberJune 30, 20172018
or
¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                     to                     
Commission File Number: 0-10961
 ____________________________________________________________________________ 
QUIDEL CORPORATION
(Exact name of registrant as specified in its charter)
  ____________________________________________________________________________
Delaware 94-2573850
(State or other jurisdiction of
incorporation or organization)
 
(I.R.S. Employer
Identification No.)
12544 High Bluff Drive, Suite 200, San Diego, California 92130
(Address of principal executive offices, including zip code)
(858) 552-1100
(Registrant’s telephone number, including area code)
Not Applicable
(Former name, former address and former fiscal year, if changed since last report)
____________________________________________________________________________ 
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 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 (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, 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.
Large accelerated filer
x

¨Accelerated filer
x
¨
     
Non-accelerated filer¨(Do not check if a smaller reporting company)Smaller reporting company¨
   Emerging growth company¨
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 Securities 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
As of October 27, 2017, 33,996,891August 1, 2018, 39,047,802 shares of the registrant's common stock were outstanding.
 


Table of Contents

INDEX
 
 
 
 


PART I    FINANCIAL INFORMATION
 
ITEM 1.    Financial Statements
QUIDEL CORPORATION
CONSOLIDATED BALANCE SHEETS
(in thousands, except par value; unaudited)
September 30, 2017 December 31, 2016June 30, 2018 December 31, 2017
ASSETS      
Current assets:      
Cash and cash equivalents$172,994
 $169,508
$38,675
 $36,086
Accounts receivable, net41,575
 24,990
44,703
 67,046
Inventories23,429
 26,045
59,714
 67,078
Assets held for sale
 146,644
Prepaid expenses and other current assets6,477
 4,851
24,880
 14,375
Total current assets244,475
 225,394
167,972
 331,229
Property, plant and equipment, net50,035
 50,858
66,522
 61,585
Goodwill91,433
 83,834
337,023
 337,028
Intangible assets, net27,364
 27,639
188,968
 203,827
Other non-current assets514
 525
3,016
 1,582
Total assets$413,821
 $388,250
$763,501
 $935,251
LIABILITIES AND STOCKHOLDERS’ EQUITY      
Current liabilities:      
Accounts payable$15,657
 $16,047
$21,737
 $27,279
Accrued payroll and related expenses9,771
 9,642
15,317
 15,926
Current portion of lease obligation122
 98
Current portion of contingent consideration4,324
 2,826
7,125
 6,293
Current portion of deferred consideration44,000
 46,000
Current portion of Revolving Credit Facility
 10,000
Current portion of Convertible Senior Notes53,421
 
Current portion of Term Loan
 10,184
Other current liabilities9,061
 4,999
10,713
 12,666
Total current liabilities38,935
 33,612
152,313
 128,348
Long-term debt148,469
 144,340
Lease obligation, net of current portion3,885
 3,979
Contingent consideration—non-current356
 2,349
Deferred tax liability—non-current166
 58
Income taxes payable1,124
 1,045
Deferred rent1,685
 1,965
Convertible Senior Notes
 149,868
Term Loan80,960
 227,394
Deferred consideration138,559
 177,158
Contingent consideration14,904
 18,008
Other non-current liabilities317
 272
7,857
 7,371
Commitments and contingencies (see Note 9)   
 
Stockholders’ equity:      
Preferred stock, $.001 par value per share; 5,000 shares authorized; none issued or outstanding at September 30, 2017 and December 31, 2016
 
Common stock, $.001 par value per share; 97,500 shares authorized; 33,984 and 32,897 shares issued and outstanding at September 30, 2017 and December 31, 2016, respectively34
 33
Preferred stock, $.001 par value per share; 5,000 shares authorized; none issued or outstanding at June 30, 2018 and December 31, 2017
 
Common stock, $.001 par value per share; 97,500 shares authorized; 39,001 and 34,540 shares issued and outstanding at June 30, 2018 and December 31, 2017, respectively39
 35
Additional paid-in capital226,186
 204,905
350,401
 239,489
Accumulated other comprehensive loss(4) (53)
Accumulated deficit(7,332) (4,255)
Accumulated other comprehensive income6
 
Retained earnings (accumulated deficit)18,462
 (12,420)
Total stockholders’ equity218,884
 200,630
368,908
 227,104
Total liabilities and stockholders’ equity$413,821
 $388,250
$763,501
 $935,251
See accompanying notes.

QUIDEL CORPORATION
CONSOLIDATED STATEMENTS OF OPERATIONS
(in thousands, except per share data; unaudited)
 
 Three months ended 
 September 30,
 Nine months ended 
 September 30,
 2017 2016 2017 2016
Total revenues$50,894
 $49,341
 $162,853
 $138,795
Costs and expenses       
Cost of sales (excludes amortization of intangible assets of $1,877, $1,590, $5,122 and $4,770, respectively)19,391
 17,728
 60,716
 54,295
Research and development7,468
 8,801
 22,970
 31,164
Sales and marketing12,898
 11,853
 38,813
 36,376
General and administrative6,580
 6,364
 20,483
 19,964
Amortization of intangible assets from acquired businesses and technology2,503
 2,273
 7,184
 6,782
Acquisition and integration costs4,591
 197
 7,022
 568
Total costs and expenses53,431
 47,216
 157,188
 149,149
Operating (loss) income(2,537) 2,125
 5,665
 (10,354)
Interest expense, net(2,784) (3,006) (8,387) (8,619)
Loss before income taxes(5,321) (881) (2,722) (18,973)
Provision (benefit) for income taxes204
 (309) 355
 (7,115)
Net loss$(5,525) $(572) $(3,077) $(11,858)
Basic and diluted loss per share$(0.16) $(0.02) $(0.09) $(0.36)
Shares used in basic and diluted per share calculation33,913
 32,673
 33,538
 32,645
 Three months ended 
 June 30,
 Six months ended 
 June 30,
 2018 2017 2018 2017
Total revenues$103,155
 $38,267
 $272,298
 $111,959
Cost of sales45,487
 19,441
 108,359
 44,634
Gross profit57,668
 18,826
 163,939
 67,325
Research and development13,284
 7,627
 25,905
 15,502
Sales and marketing27,545
 13,064
 56,103
 27,287
General and administrative11,500
 6,783
 22,032
 13,903
Acquisition and integration costs4,935
 2,379
 8,402
 2,431
Total operating expenses57,264
 29,853
 112,442
 59,123
Operating income (loss)404
 (11,027) 51,497
 8,202
Other expense, net:       
Interest expense, net(6,839) (2,778) (14,689) (5,603)
Loss on extinguishment of debt(2,398) 
 (6,965) 
Total other expense, net(9,237) (2,778) (21,654) (5,603)
(Loss) income before income taxes(8,833) (13,805) 29,843
 2,599
(Benefit) provision for income taxes(5,757) (1,963) (1,039) 151
Net (loss) income$(3,076) $(11,842) $30,882
 $2,448
Basic (loss) earnings per share$(0.08) $(0.35) $0.84
 $0.07
Diluted (loss) earnings per share$(0.08) $(0.35) $0.81
 $0.07
Shares used in basic per share calculation37,925
 33,500
 36,586
 33,351
Shares used in diluted per share calculation37,925
 33,500
 42,255
 34,295
See accompanying notes.


QUIDEL CORPORATION
CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS(LOSS) INCOME
(in thousands; unaudited)
 
 Three months ended 
 September 30,
 Nine months ended 
 September 30,
 2017 2016 2017 2016
Net loss$(5,525) $(572) $(3,077) $(11,858)
Other comprehensive income (loss), net of tax       
Changes in cumulative translation adjustment14
 3
 49
 1
Comprehensive loss$(5,511) $(569) $(3,028) $(11,857)
 Three months ended 
 June 30,
 Six months ended 
 June 30,
 2018 2017 2018 2017
Net (loss) income$(3,076) $(11,842) $30,882
 $2,448
Other comprehensive (loss) income, net of tax       
Changes in cumulative translation adjustment(14) 26
 6
 35
Comprehensive (loss) income$(3,090) $(11,816) $30,888
 $2,483
See accompanying notes.


QUIDEL CORPORATION
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands; unaudited)
QUIDEL CORPORATION
CONSOLIDATED STATEMENTS OF CASH FLOWS
(in thousands; unaudited)

 Six months ended 
 June 30,
 2018 2017
OPERATING ACTIVITIES:   
Net income$30,882
 $2,448
Adjustments to reconcile net income to net cash provided by operating activities:   
Depreciation, amortization and other23,619
 11,577
Stock-based compensation expense6,415
 4,059
Amortization of debt discount and deferred issuance costs2,714
 2,741
Change in fair value of acquisition contingencies745
 
Accretion of interest on deferred consideration5,401
 
Amortization of inventory step-up to fair value3,650
 
Change in deferred tax assets and liabilities
 (247)
Loss on extinguishment of debt6,965
 
Changes in assets and liabilities:   
Accounts receivable22,342
 5,156
Inventories3,710
 3,216
Income taxes receivable(1,291) (866)
Prepaid expenses and other current and non-current assets(11,525) (1,908)
Accounts payable(5,070) (4,064)
Accrued payroll and related expenses(1,505) 637
Other current and non-current liabilities(590) 1,258
Net cash provided by operating activities:86,462
 24,007
INVESTING ACTIVITIES:   
Acquisitions of property, equipment and intangibles(13,577) (8,070)
Acquisition of other businesses, net of cash acquired
 (14,655)
Proceeds from sale of Summers Ridge Property146,644
 
Net cash provided by (used for) investing activities:133,067
 (22,725)
FINANCING ACTIVITIES:   
Proceeds from issuance of common stock9,549
 5,265
Payments on revolving credit facility(10,000) 
Payments on lease obligation(60) (44)
Repurchases of common stock(3,607) (488)
Payments on acquisition contingent consideration(3,017) (486)
Payments on deferred consideration(46,000) 
Payments on Term Loan(161,813) 
Payments of debt transaction costs(2,002) 
Net cash (used for) provided by financing activities:(216,950) 4,247
Effect of exchange rates on cash10
 11
Net increase in cash and cash equivalents2,589
 5,540
Cash and cash equivalents, beginning of period36,086
 169,508
Cash and cash equivalents, end of period$38,675
 $175,048
 Nine months ended 
 September 30,
 2017 2016
OPERATING ACTIVITIES:   
Net loss$(3,077) $(11,858)
Adjustments to reconcile net loss to net cash provided by (used for) operating activities:   
Depreciation, amortization and other17,813
 17,597
Stock-based compensation expense5,938
 5,820
Amortization of debt discount and deferred issuance costs4,129
 4,266
Change in deferred tax assets and liabilities101
 (7,375)
Change in fair value of acquisition contingencies
 (589)
Gain on extinguishment of Convertible Senior Notes
 (421)
Changes in assets and liabilities:   
Accounts receivable(16,582) (7,464)
Inventories2,751
 3,544
Income taxes receivable(1,123) (248)
Prepaid expenses and other current and non-current assets(667) (1,047)
Restricted cash
 63
Accounts payable2,128
 984
Accrued payroll and related expenses982
 (1,867)
Income taxes payable78
 (12)
Deferred grant revenue
 (3,658)
Other current and non-current liabilities4,013
 (2,541)
Net cash provided by (used for) operating activities:16,484
 (4,806)
INVESTING ACTIVITIES:   
Acquisitions of property, equipment and intangibles(12,767) (7,860)
Acquisition of businesses, net of cash acquired(14,388) (5,061)
Net cash used for investing activities:(27,155) (12,921)
FINANCING ACTIVITIES:   
Payments on lease obligation(70) (433)
Repurchases of common stock(541) (20,096)
Repurchases of Convertible Senior Notes
 (4,459)
Proceeds from issuance of common stock15,246
 4,821
Payments on acquisition contingencies(498) (207)
Net cash provided by (used for) financing activities:14,137
 (20,374)
Effect of exchange rates on cash20
 (7)
Net increase (decrease) in cash and cash equivalents3,486
 (38,108)
Cash and cash equivalents, beginning of period169,508
 191,471
Cash and cash equivalents, end of period$172,994
 $153,363

 Nine months ended 
 September 30,
 2017 2016
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:   
Cash paid for interest$3,279
 $3,331
Income taxes paid$1,259
 $459
NON-CASH INVESTING ACTIVITIES:   
Purchase of property, equipment and intangibles by incurring current liabilities
$653
 $1,866
NON-CASH FINANCING ACTIVITIES:   
Reduction of other current liabilities upon issuance of restricted share units$903
 $539

SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING TRANSACTIONS:
Purchase of property, equipment and intangibles by incurring current liabilities$1,752
 $2,404
Decrease of accrued payroll and related expenses upon issuance of common stock$
 $903
Extinguishment of Convertible Senior Notes through issuance of common stock$200,185
 $
See accompanying notes.

Quidel Corporation
Notes to Consolidated Financial Statements
(Unaudited)
Note 1. Summary of Significant Accounting Policies
Basis of Presentation
The accompanying unaudited consolidated financial statements of Quidel Corporation and its subsidiaries (the “Company”) have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation (consisting of normal recurring accruals) have been included.
The information at SeptemberJune 30, 2017,2018, and for the three and ninesix months ended SeptemberJune 30, 20172018 and 2016,2017, is unaudited. For further information, refer to the Company’s consolidated financial statements and notes thereto for the year ended December 31, 20162017 included in the Company’s 20162017 Annual Report on Form 10-K. Operating results for any quarter are historically seasonal in nature and are not necessarily indicative of the results expected for the full year.
For 20172018 and 2016,2017, the Company’s fiscal year will end or has ended on December 31, 201730, 2018 and January 1,December 31, 2017, respectively. For 20172018 and 2016,2017, the Company’s thirdsecond quarter ended on OctoberJuly 1, 20172018 and OctoberJuly 2, 2016,2017, respectively. For ease of reference, the calendar quarter end dates are used herein. The three and ninesix month periods ended SeptemberJune 30, 20172018 and 20162017 each included 13 and 3926 weeks, respectively.
Comprehensive Loss
Comprehensive loss includes foreign currency translation adjustments excluded from the Company’s Consolidated Statements of Operations.
Use of Estimates
The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. requires the Companymanagement to make estimates and judgmentsassumptions that affect the reported amounts of assets and liabilities revenues and expenses, and related disclosuredisclosures of contingent assets and liabilities. On an on-going basis, management evaluates its estimates, including those related to customer programsliabilities at the date of the financial statements and incentives, bad debts, inventories, intangible assets, income taxes, stock-based compensation, contingenciesthe reported amounts of revenues and litigation. Management bases its estimates on historical experience and on various other assumptions that it believes are reasonable underexpenses during the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources.reporting period. Actual results maycould differ from thesethose estimates.
Significant Accounting Policies
During the three and six months ended June 30, 2018, there have been no changes to our significant accounting policies as described in our Annual Report on Form 10-K for the fiscal year ended December 31, 2017, except as described below.
Revenue Recognition
The Company records revenues primarily from product sales. These revenues are recorded net of rebates and other discounts. These rebates and discounts are estimated at the time of sale, and are largely driven by various customer program offerings, including special pricing agreements, promotions and other volume-based incentives. Revenues from product sales are recorded upon passageRevenue is recognized when control of title and risk of lossthe products is transferred to the customer. Passage of titlecustomers in an amount that reflects the consideration the Company expects to receive from the customers in exchange for those products and services. This process involves identifying the contract with a customer, determining the performance obligations in the contract, determining the contract price, allocating the contract price to the productdistinct performance obligations in the contract and recognition ofrecognizing revenue occurs upon deliverywhen the performance obligations have been satisfied. A performance obligation is considered distinct from other obligations in a contract when it provides a benefit to the customer either on its own or together with other resources that are readily available to the customer and is separately identified in the contract. A performance obligation is considered to be satisfied once the control of a product is transferred to the customer, meaning the customer has the ability to use and obtain the benefit of the good or service. The Company recognizes revenue for satisfied performance obligations only when salesthere are no uncertainties regarding payment terms are free on board (“FOB”) destination and at the timeor transfer of shipment when the sales terms are FOB shipping point and there is no right of return.control.
A portion of product sales includes revenues for diagnostic kits, which are utilized on leased instrument systems under the Company’s “reagent rental” program. The reagent rental program provides customers the right to use the instruments at no separate cost to the customer in consideration for a multi-year agreement to purchase annual minimum amounts of consumables (“reagents” or “diagnostic kits”). When an instrument is placed with a customer under a reagent rental agreement, the Company retains title to the equipment and it remains capitalized on the Company’s Consolidated Balance Sheets as property, plant and equipment.

equipment, net. The instrument is depreciated on a straight-line basis over the lower of the lease term or life of the instrument. Depreciation expense is recorded in cost of sales included in the Consolidated Statements of Operations. TheInstrument and consumables under the reagent rental agreements represent one unit of accounting asare deemed two distinct performance obligations. Though the instrument and consumables (reagents)do not have any use to customers without one another, they are not highly interdependent in producing a diagnostic resultbecause they do not significantly affect each other. The Company would be able to fulfill its promise to transfer the instrument even if its customers did not purchase any consumables and neither has a stand-alone value with respectthe Company would be able to fulfill its promise to provide the consumables even if customers acquired instruments separately. The contract price is allocated between these agreements. Notwo performance obligations based on the relative standalone selling prices. The instrument is considered an operating lease and revenue is recognized at the time of instrument placement. All revenue is recognized when the title and risk of loss for the diagnostic kits have passedallocated to the customer.

Royalty revenue from the grant of license rights is recognized during the period in which the revenue is earned and the amount is determinable from the licensee.
The Company earns income from grants for research and commercialization activities. On November 6, 2012, the Company was awarded a milestone-based grant totaling up to $8.3 million from the Bill and Melinda Gates Foundation to develop, manufacture and validate a quantitative, low-cost, nucleic acid assay for HIV drug treatment monitoring on the integrated Savanna MDx platform for use in limited resource settings. Upon execution of the grant agreement, the Company received $2.6 million to fund subsequent research and development activities and received milestone payments totaling $2.5 million in 2013. On September 10, 2014, the Company entered into an amended grant agreement with the Bill and Melinda Gates Foundation for additional funding of up to $12.6 million in order to accelerate the development of the Savanna MDx platform in the developing world. Upon execution of the amended grant agreement, the Company received $10.6 million in cash. The Company received payments of $2.4 million in April 2015 and $2.8 million in July 2016 based on milestone achievements for both the original and the amended grant agreements. Under the original and amended grant agreements, the Company recognized grant revenue on the basis of the lesser of the amount recognized on a proportional performance basis or the amount of cash payments that were non-refundable as of the end of each reporting period. The Company recognized $3.8 million and $6.5 million as grant revenue for the three and nine months ended September 30, 2016, respectively. Cash payments received were restricted as to use until expenditures contemplated in the grant were incurred or committed. As of September 30, 2016 all payment related milestones were achieved and all of the grant revenue of $20.9 million was fully recognized. As such, the Company recognized no grant revenue during the nine months ended September 30, 2017.
Fair Value Measurements
The Company uses the fair value hierarchy established in Accounting Standards Codification (“ASC”) Topic 820, Fair Value Measurements and Disclosures, whichrequires that the valuation of assets and liabilities subject to fair value measurementsinstrument will be classified andseparately disclosed, by the Company in one of the following three categories:if material.
Level 1: Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;
Level 2: Quoted prices for similar assets and liabilities in active markets, quoted prices in markets that are not active, or inputs which are observable, either directly or indirectly, for substantially the full term of the asset or liability; and
Level 3: Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e. supported by little or no market activity).
The carrying amounts of the Company’s financial instruments, including cash, receivables, accounts payable and accrued liabilities approximate their fair values due to their short-term nature.
Reclassifications
The Company recorded immaterial reclassificationsa reclassification of acquisition and integration costs totaling $0.2$1.7 million and $0.6$3.3 million for the three and ninesix months ended SeptemberJune 30, 2016, respectively,2017 from generalamortization of intangible assets from acquired businesses and administrativetechnology to cost of sales expense as previously reported in the Consolidated Statements of OperationsOperations. In addition, the Company recorded a reclassification of $0.7 million and $1.4 million for the three and six months ended June 30, 2017 from amortization of intangible assets from acquired businesses and technology to sales and marketing expense to conform to current year presentation. The Company believes theseThese reclassifications provide greater clarity and insight into the consolidated financial statements for the periods presented. The reclassification did not impact the net loss(loss) income as previously reported or any prior amounts reported on the Consolidated Balance Sheets, Statements of Cash Flows or Statements of Comprehensive Loss.(Loss) Income.
Recent Accounting Pronouncements
In May 2014, the Financial Accounting Standards Board (“FASB”) issued guidance codified in Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers, which amends the guidance in former ASC 605, Revenue Recognition (“ASU 2014-09”). The standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. In doing so, companies will need to use more judgment and make more estimates than under current authoritative guidance. These may include identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation. The FASB has issued several amendments to the new standard, which include clarification of accounting guidance related to identification of performance obligations, intellectual property licenses and principal vs. agent

considerations. The standard will beASU 2014-09 and all subsequent amendments (collectively, “ASC 606”) were effective for public entities for annual reporting periods beginning after December 15, 2017, including interim periods therein.
The Company has assigned internal resourcesadopted ASC 606 on January 1, 2018, using the modified retrospective transition method applied to assistthose contracts which were not completed as of that date. The cumulative effect of applying the new revenue standard to all incomplete contracts as of January 1, 2018 was not material and, therefore, did not result in an adjustment to retained earnings. The adoption of ASC 606 did not have a material impact on the Company's consolidated financial position, results of operations, equity or cash flows as of the adoption ofdate or for the new standardthree and is evaluating the impact of the new standard on its accounting policies, processes and system requirements. The Company has begun the process of identifying, categorizing and analyzing its various revenue streams, but has not yet completed its assessment of the impact. The Company will continue to evaluate the future impact and method of adoption of ASU 2014-09 and related amendments on the Consolidated Financial Statements and related disclosures throughout the remainder of 2017. The Company will adopt the new standard beginning Januarysix months ended June 30, 2018.
In February 2016, the FASB issued guidance codified in ASU 2016-02 (Topic 842), Leases. The guidance requires a lessee to recognize a lease liability for the obligation to make lease payments and a right-to-use asset representing the right to use the underlying asset for the lease term on the balance sheet. The guidance is effective for fiscal years beginning after December 15, 2018, including interim periods therein,within those years. Under ASU 2016-02, the standard will be adopted on a modified retrospective transition basis for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The FASB issued ASU 2018-11 in July 2018 which allows for an alternative method to adopt the lease standard by recognizing a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. While the Company is continuing to assess the effects of adoption, the Company believes the new standard will have a material effect on the consolidated financial statements and disclosures. We expect substantially all real-estate operating lease commitments to be recognized as lease liabilities with earlycorresponding right-of-use assets upon adoption, permitted.resulting in a significant increase in the assets and liabilities on the consolidated balance sheet. The Company is currently evaluating the impact of this guidance and expectsTopic 842 on the consolidated financial statements as it relates to adopt the standard in the first quarter of 2019.
In March 2016, the FASB issued guidance codified in ASU 2016-09 (Topic 718), Improvements to Employee Share-Based Payment Accounting (“ASU 2016-09”). This guidance includes provisions to simplify severalother aspects of accounting for share-based payment transactions, including income tax consequences, accounting for forfeitures, classification of awards as either equity or liability and classification on the statement of cash flows. ASU 2016-09 includes a requirement that the tax effect related to the settlement of share-based awards be recorded within income tax expense or benefit in the income statement. The simplification of income tax accounting for share-based payment transactions also impacts the computation of weighted-average diluted shares outstanding under the treasury stock method. The Company adopted ASU 2016-09 in the first quarter of 2017 and the impact of the adoption resulted in the following:its business.
Upon adoption, the balance of the unrecognized excess tax benefits of $1.8 million was recorded as an increase to deferred tax assets and a corresponding increase to the valuation allowance, resulting in no impact to retained earnings.
Excess tax benefits from share-based arrangements are to be classified within cash flow from operating activities, rather than as cash flow from financing activities. The Company applied this provision on a retrospective basis and the prior period statement of cash flows was adjusted. This adoption did not have a material impact on the Company’s cash flows.
The Company elected to continue to estimate the number of awards expected to be forfeited and adjust the estimate when appropriate, as is currently required. This adoption did not have a material impact on the Company’s consolidated results of operations, financial condition or cash flows.
There was no material impact on the computation of weighted-average diluted shares outstanding.

In January 2017, the FASB issued guidance codified in ASU 2017-04, Intangibles-Goodwill and Other (Topic 350) Simplifying the Test for Goodwill Impairment (“ASU 2017-04”). Under this new guidance, an entity will no longer determine goodwill impairment by calculating the implied fair value of goodwill by assigning the fair value of a reporting unit to all of its assets and liabilities as if that reporting unit had been acquired in a business combination. Instead, an entity will compare the fair value of a reporting unit with its carrying amount and recognize an impairment charge for the amount by which the

carrying amount exceeds the reporting unit's fair value. The guidance is effective for fiscal years beginning after December 15, 2019 including interim periods therein, with early adoption permitted.therein. The Company is currently evaluating the impact of this guidance and expects to adopt the standard in the first quarter of 2020.
Note 2. Computation of (Loss) Earnings (Loss) Per Share
Basic (loss) earnings (loss) per share ("EPS") is computed by dividing net earnings (loss) income by the weighted-average number of common shares outstanding, including restricted stock units (“RSUs”) vested during the period. Diluted earnings per share (“EPS”)EPS is computed based on the sum of the weighted average number of common shares and potentially dilutive common shares outstanding during the period. Potentially dilutive common shares consist of shares issuable from stock options, unvested RSUs and the 3.25% Convertible Senior Notes due 2020 (“Convertible Senior Notes”). Potentially dilutive common shares from outstanding stock options and unvested RSUs are determined using the average share price for each period under the treasury stock method. As discussed in Note 6, it isPotentially dilutive shares from the Company’s intent and policy to settle conversions through combination settlement, which essentially involves repayment of an amount of cash equal toConvertible Senior Notes are determined using the “principal portion” and deliveryif-converted method. Under the provisions of the “share amount”if-converted method, the Convertible Senior Notes are assumed to be converted and included in excessthe denominator of the conversion value overEPS calculation and the principal portioninterest expense, net of tax, recorded in cash or shares of common stock (“conversion premium”). connection with the Convertible Senior Notes is added back to net (loss) income.
The Convertible Senior Notes have a dilutive impact when the average market price of the Company’s common stock exceeds the applicable conversion price of the notes.

The Senior Convertible Notes became convertible on March 31, 2018 and remained convertible through June 30, 2018. The Senior Convertible Notes were not convertible during the six months ended June 30, 2017.
The following table reconciles net (loss) income and the weighted-average shares used in computing basic and diluted earnings (loss) per share in the respective periods (in thousands):
 Three Months Ended September 30, Nine Months Ended September 30,
 2017 2016 2017 2016
Shares used in basic loss per share (weighted-average common shares outstanding)33,913
 32,673
 33,538
 32,645
Effect of potentially dilutive shares issuable from stock options, restricted stock units and Convertible Senior Notes
 
 
 
Shares used in diluted loss per share calculation33,913
 32,673
 33,538
 32,645
Potentially dilutive shares excluded from calculation due to anti-dilutive effect
 1,856
 1,121
 2,892
 Three months ended June 30, Six months ended June 30,
 2018 2017 2018 2017
Numerator:       
Net (loss) income used for basic earnings per share$(3,076) $(11,842) $30,882
 $2,448
Interest expense on Convertible Senior Notes, net of tax
 
 3,361
 
Net (loss) income used for diluted earnings per share, if-converted method$(3,076) $(11,842) $34,243
 $2,448
        
Basic weighted-average common shares outstanding37,925
 33,500
 36,586
 33,351
Potentially dilutive shares issuable from Convertible Senior Notes, if-converted
 
 3,881
 
Potentially dilutive shares issuable from stock options and unvested RSUs
 
 1,788
 944
Diluted weighted-average common shares outstanding, if-converted37,925
 33,500
 42,255
 34,295
Potentially dilutive shares excluded from calculation due to anti-dilutive effect167
 1,291
 183
 1,465
Potentially dilutive shares excluded from the calculation above represent stock options when the combined exercise price and unrecognized stock-based compensation are greater than the average market price for the Company’s common stock because their effect is anti-dilutive.
Additionally, theThe number of potentially dilutive shares issuable under the stock options, RSUs and Convertible Senior Notes that would have been included in the diluted EPS calculation if the Company had earnings amounted to 1.82.8 million and 1.2 millionshares for the three and nine months ended SeptemberJune 30, 2017, respectively. The2018. Additionally, the number of potentially dilutive shares issuable under the stock options and RSUs that would have been included in the diluted EPS calculation if the Company had earnings amounted to 0.91.8 million shares and 0.81.1 million shares for the three and nine months ended SeptemberJune 30, 2016,2018 and 2017, respectively. No conversion premium existed on the Convertible Senior Notes as of September 30, 2016; therefore, there was no dilutive impact from the Convertible Senior Notes to diluted EPS during the three and nine months ended September 30, 2016.

Note 3. Inventories
Inventories are stated at the lower of cost (first-in, first-out) or net realizable value. Inventories consisted of the following net of reserves of $0.4 million and $0.7 million at SeptemberJune 30, 20172018 and December 31, 2016,2017, respectively (in thousands):
September 30, 2017 December 31, 2016June 30, 2018 December 31, 2017
Raw materials$9,533
 $9,297
$22,220
 $22,252
Work-in-process (materials, labor and overhead)7,839
 7,990
20,588
 22,813
Finished goods (materials, labor and overhead)6,057
 8,758
16,906
 22,013
Total inventories$23,429
 $26,045
$59,714
 $67,078
Note 4. Other Current Liabilities
Other current liabilities consist of the following (in thousands):
September 30, 2017 December 31, 2016June 30, 2018 December 31, 2017
Customer incentives$6,256
 $3,766
$6,603
 $7,165
Accrued interest1,586
 227
80
 442
Other1,219
 1,006
4,030
 5,059
Total other current liabilities$9,061
 $4,999
$10,713
 $12,666
Note 5. Income Taxes
The Company calculates its interim income tax provision in accordance with ASC 270, Interim Reporting, and ASC 740, Accounting for Income Taxes (together, “ASC 740”). At the end of each interim period, the Company estimates its annual effective tax rate and applies that rate to its ordinary quarterly earnings to calculate the tax related to ordinary income. The tax effects for other items that are excluded from ordinary income are discretely calculated and recognized in the period in which they occur.
On December 22, 2017, the Tax Cuts and Jobs Act (the "Tax Act") was enacted into legislation, which includes a broad range of provisions affecting businesses. The Tax Act significantly revises how companies compute their U.S. corporate tax liability by, among other provisions, reducing the corporate tax rate from 35% to 21% for tax years beginning after December 31, 2017, implementing a territorial tax system, and requiring a mandatory one-time tax on U.S.-owned undistributed foreign earnings and profits known as the transition tax.
The Company recognized income tax benefit of $5.8 million and $2.0 million for the three months ended June 30, 2018 and 2017 respectively, which represents an effective tax rate of 65% and 14%, respectively. The Company recognized income tax benefit of $1.0 million and income tax expense of $0.2 million for the six months ended June 30, 2018 and 2017, respectively, which represents an incomeeffective tax benefitrate of $0.3 million(3)% and 6% respectively. The effective tax rate for the three monthsand six month periods ended SeptemberJune 30, 2017 and 2016, respectively. The Company recognized income tax expense of $0.4 million and an income tax benefit of $7.1 million for the nine months ended September 30, 2017 and 2016, respectively. For the three and nine months ended September 30, 2017, the Company recorded income tax expense compared to an income tax benefit in2018 differed from the same periods in prior years due primarily to reduction in the tax rate from the Tax Act, the impacts of 2016 as no tax benefit was provided for losses incurred in United States Federal and certain state jurisdictions

because those losses are offset by athe Company's full valuation allowance on U.S. earnings and higher discrete tax benefits recorded during the Company has recorded2018 periods for excess tax expense for foreign jurisdictions and certain state jurisdictions during this time period.
In interim periods when a small change in forecasted information results in a significant change to the estimated annual effective tax rate and the income tax expense or benefit for an interim period, a discrete effective tax rate method may provide a more reliable estimate than applying the annual effective tax rate method to the year-to-date loss. The discrete methodbenefits of calculating the Company's estimated effective tax rate and income tax expense or benefit uses actual results for the interim period(s), instead of forecasted information. For the third quarter of 2017, the Company used the discrete effective tax rate method to calculate the income tax expense.stock-based compensation.
The Company is subject to periodic audits by domestic and foreign tax authorities. Due to the carryforward of unutilized net operating loss and credit carryovers, the Company's federal tax years from 2009 and forward are subject to examination by the U.S. authorities. The Company's state and foreign tax years for 2001 and forward are subject to examination by applicable tax authorities. The Company believes that it has appropriate support for the income tax positions taken on its tax returns and that its accruals for tax liabilities are adequate for all open years based on an assessment of many factors, including past experience and interpretations of tax laws applied to the facts of each matter.
On December 22, 2017, the Securities and Exchange Commissions issued Staff Accounting Bulletin No. 118 (“SAB 118”) to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Tax Act. As of December 31, 2017, the Company was able to reasonably estimate certain effects of the Tax Act and, therefore, recorded provisional adjustments associated with the deemed repatriation transition tax and rate change revaluation of the deferred tax assets. The Company has not made any additional measurement-period adjustments related to these items during the three and six months ended June 30, 2018, as the Company is still awaiting relevant guidance as to

certain provisions included in the Tax Act. However, the Company is continuing to gather additional information to complete the accounting for these items and expects to complete the accounting within the prescribed measurement period. Any subsequent adjustment to the amounts previously recorded in 2017 (the period of enactment of the Tax Act) will be a tax expense/benefit in the quarter of 2018 when the analysis is complete.
Note 6. Debt

Convertible Senior Notes
In December 2014, the Company issued $172.5 million aggregate principal amount of its Convertible Senior Notes. Debt issuance costs of approximately $5.1 million were primarily comprised of underwriters fees, legal, accounting and other professional fees, of which $4.2 million were capitalized and are recorded as a reduction to long-term debt and are being amortized using the effective interest method to interest expense over the six-year term of the Convertible Senior Notes. The remaining $0.9 million of debt issuance costs were allocated as a component of equity in additional paid-in capital. Deferred issuance costs related toThe implied interest rate of the Convertible Senior Notes were $2.3 million and $2.8 million as of September 30, 2017 andwas 6.9%, assuming no conversion option. The Convertible Senior Notes mature on December 31, 2016, respectively.15, 2020.
The Convertible Senior Notes will beare convertible into cash, shares of common stock, or a combination of cash and shares of common stock based on an initial conversion rate, subject to adjustment, of 31.1891 shares per $1,000 principal amount of the Convertible Senior Notes (which represents an initial conversion price of approximately $32.06 per share). The conversion will occur in the following circumstances and to the following extent: (1) during any calendar quarter commencing after the calendar quarter ending on March 31, 2015, if the last reported sales price of the Company’s common stock, for at least 20 trading days (whether or not consecutive) in the period of 30 consecutive trading days ending on the last trading day of the calendar quarter immediately preceding the calendar quarter in which the conversion occurs, is more than 130% of the conversion price of the notes in effect on each applicable trading day; (2) during the five consecutive business day period following any five consecutive trading day period in which the trading price per $1,000 principal amount of the Convertible Senior Notes for each such trading day was less than 98% of the product of the last reported sale price of the Company’s common stock and the conversion rate on each such day; or (3) upon the occurrence of specified events described in the indenture for the Convertible Senior Notes. On or after September 15, 2020 until the close of business on the second scheduled trading day immediately preceding the stated maturity date, holders may surrender their notes for conversion at any time, regardless of the foregoing circumstances.
It is the Company’s intent and policy to settle conversions through combination settlement, which essentially involves repayment of an amount of cash equal to the “principal portion” and delivery of the “share amount” in excess of the principal portion in shares of common stock or cash. In general, for each $1,000 in principal, the “principal portion” of cash upon settlement is defined as the lesser of $1,000, or the conversion value during the 25-day observation period as described in the indenture for the Convertible Senior Notes. The conversion value is the sum of the daily conversion value, which is the product of the effective conversion rate divided by 25 days and the daily volume weighted-average price (“VWAP”) of the Company’s common stock. The “share amount” is the cumulative “daily share amount” during the observation period, which is calculated by dividing the daily VWAP into the difference between the daily conversion value (i.e., conversion rate x daily VWAP) and $1,000.
The Company pays 3.25% interest per annum on the principal amount of the Convertible Senior Notes semi-annually in arrears in cash on June 15 and December 15 of each year. The Convertible Senior Notes mature on December 15, 2020. During the nine months ended September 30, 2017 and 2016, the Company recorded total interest expense of $8.2 million related to the Convertible Senior Notes, of which $4.1 million related to the amortization of the debt discount and issuance costs and $4.1 million related to the coupon due semi-annually.

If a fundamental change, as defined in the indenture for the Convertible Senior Notes, such as an acquisition, merger or liquidation of the Company, occurs prior to the maturity date, subject to certain limitations, holders of the Convertible Senior Notes may require the Company to repurchase all or a portion of their Convertible Senior Notes for cash at a repurchase price equal to 100% of the principal amount of the Convertible Senior Notes to be repurchased, plus any accrued and unpaid interest to, but excluding, the repurchase date.
The Company accounts separately forDuring the liability and equity componentssecond quarter of 2018, the last reported sales price of the Company’s common stock was greater than 130% of the Convertible Senior Notes in accordance with authoritative guidanceconversion price for 20 or more of the 30 consecutive trading days preceding the quarter-end. Consequently, the Convertible Senior Notes were convertible debt instruments thatas of June 30, 2018. If the Convertible Senior Notes were converted as of June 30, 2018, the if-converted amount would exceed the principal by $1.7 million. The Convertible Senior Notes may be settled at the Company's option in cash upon conversion.or a combination of cash and shares of common stock. Therefore, the Convertible Senior Notes have been classified as short-term debt as of June 30, 2018.
During the three and six months ended June 30, 2018, the Company entered into separate, privately negotiated exchange agreements with certain holders of the Convertible Senior Notes. To measure the resulting loss as of the settlement dates, the applicable interest rates were estimated using Level 2 observable inputs and applied to the converted notes using the same methodology as in the issuance date valuation. The guidance requiresfollowing table summarizes information about the carryingsettlement of the Convertible Senior Notes (in thousands).
 Three months ended June 30, 2018 Six months ended June 30, 2018
Principal amount settled$38,554
 $108,773
Number of shares of common stock issued1,270
 3,698
Loss on extinguishment of debt$766
 $2,303
The Company pays 3.25% interest per annum on the principal amount of the liability component to be estimated by measuringConvertible Senior Notes semi-annually in arrears in cash on June 15 and December 15 of each year. During the fair value of a similar liability that does not have an associated conversion feature. Becausesix months ended June 30, 2018, the Company had no outstanding non-convertible public debt, the Company determined that senior, unsecured corporate bonds traded on the market represent a similar liabilityrecorded

total interest expense of $4.2 million related to the Convertible Senior Notes, withoutof which $2.2 million related to the conversion option. Based on market data available for publicly traded, senior, unsecured corporate bonds issued by companies inamortization of the same industry with similar credit ratingsdebt discount and with similar maturity,issuance costs and $2.0 million related to the coupon due semi-annually. During the six months ended June 30, 2017, the Company estimated the impliedrecorded total interest rateexpense of its Convertible Senior Notes to be 6.9%, assuming no conversion option. Assumptions used in the estimate represent what market participants would use in pricing the liability component, which were defined as Level 2 observable inputs. The estimated implied interest rate was applied$5.5 million related to the Convertible Senior Notes of which resulted in a fair value$2.8 million related to the amortization of the liability component of $141.9 million upon issuance, calculated as the present value of implied future payments based on the $172.5 million aggregate principal amount. The $30.7 million difference between the cash proceeds of $172.5 million and the estimated fair value of the liability component was recorded in additional paid-in capital, net of taxdebt discount and issuance costs asand $2.7 million related to the Convertible Senior Notes were not considered redeemable.
During the nine months ended September 30, 2016, the Company repurchased and retired $5.2 million in principal amount of the outstanding Convertible Senior Notes. The aggregate cash used for the transaction was $4.5 million. The repurchase resulted in a reduction in debt of $4.4 million and a reduction in additional paid-in capital of $0.5 million with a gain on extinguishment of Convertible Senior Notes of $0.4 million included in interest expense, net in the Consolidated Statements of Operations. The Company made no repurchases in principal amount of the outstanding Convertible Senior Notes during the nine months ended September 30, 2017.coupon due semi-annually. 
The following table summarizes information about the equity and liability components of the Convertible Senior Notes (dollars in thousands). The fair values of the respective notes outstanding were measured based on quoted market prices.price and is a Level 2 measurement.
 September 30, 2017 December 31, 2016
Principal amount of Convertible Senior Notes outstanding$167,314
 $167,314
Unamortized discount of liability component(16,587) (20,221)
Unamortized debt issuance costs(2,258) (2,753)
Net carrying amount of liability component148,469
 144,340
Less: current portion
 
Long-term debt$148,469
 $144,340
Carrying value of equity component, net of issuance costs$29,211
 $29,211
Fair value of outstanding Convertible Senior Notes$253,765
 $165,223
Remaining amortization period of discount on the liability component3.3 years
 4.0 years
As a policy election under applicable guidance related to the calculation of diluted net EPS, the Company elected the combination settlement method as its stated settlement policy and applied the treasury stock method in the calculation of dilutive impact of the Convertible Senior Notes. The Convertible Senior Notes were not convertible as of September 30, 2017 and 2016; therefore there was no dilutive impact during the three and nine months ended September 30, 2017 and 2016. If the Convertible Senior Notes were converted as of September 30, 2017, the if-converted value would not exceed the principal amount.

 June 30, 2018 December 31, 2017
Principal amount outstanding$58,541
 $167,314
Unamortized discount of liability component(4,516) (15,356)
Unamortized debt issuance costs(604) (2,090)
Net carrying amount of liability component53,421
 149,868
Less: current portion(53,421) 
Long-term debt$
 $149,868
Carrying value of equity component, net of issuance costs$10,099
 $29,211
Fair value of outstanding Convertible Senior Notes$125,872
 $257,245
Remaining amortization period of discount on the liability component2.5 years
 3.0 years
Senior Credit Agreement
On October 6, 2017, the Company entered into a Credit Agreement (the “Credit Agreement”), which provided the Company with a $245.0 million senior secured term loan facility (the “Term Loan”) and a $25.0 million revolving credit facility (the “RevolvingRevolving Credit Facility”Facility ("Revolving Credit Facility"), together (the “Senior Credit Facility”). The Term Loan and the Revolving Credit Facility will mature on October 6, 2022. On the closing date of the Credit Agreement, the Company borrowed the entire

amount of the Term Loan and $10.0 million under the Revolving Credit Facility. The Company used the proceeds of the Term Loan along with its cash on hand, to pay (i) the consideration for the cardiovascular and toxicology Triage® MeterPro business (“Triage Business”) and (ii) the fees and expenses incurred in connection with the acquisition of the Triage Business and the Triage® BNP Test for the Beckman Coulter Access Family of Immunoassay Systems (the “BNP Business”). See Note 12 for further discussion of the acquisition of the Triage Business and BNP Business.
The Credit Agreement includes an accordion feature that allows the facilityRevolving Credit Facility to be increased by $50.0 million upon the satisfaction of certain conditions. The FinancingSenior Credit Facility is guaranteed by certain material domestic subsidiaries of the Company (the “Guarantors”) and is secured by liens on substantially all of the assets of the Company and the Guarantors, excluding real property and certain other types of excluded assets. If the Company does not consummate a sale leaseback transaction with respect to the Summers Ridge property acquired as part of the Triage Business within 180 days of the closing of the Credit Agreement, the Company will also be required to grant the Lenders a mortgage on the real property associated with the Summers Ridge property.
Loans under the Credit Agreement will bear interest at a rate equal to (i) the London Interbank Offered Rate (“LIBOR”) plus the “applicable rate” or (ii) the “base rate” (defined as the highest of (a) the Bank of America prime rate, (b) the Federal Funds rate plus one-half of one percent and (c) LIBOR plus one percent) plus the “applicable rate.” The initial applicable rate will bewas 2.50% per annum for base rate loans and 3.50% per annum for LIBOR rate loans, and thereafter will be determined in accordance with a pricing grid based on the Company’s Consolidated Leverage Ratio (as defined in the Credit Agreement) ranging from 2.50% to 3.50% per annum for LIBOR rate loans and from 1.50% to 2.50% per annum for base rate loans. In addition, the Company will paypays a commitment fee on the unused portion of the Credit Agreement based on the Company’s Consolidated Leverage Ratio ranging from 0.10% to 0.50% per annum.
TheDuring the three and six months ended June 30, 2018, the Company used cash on hand of $60.0 million and $161.8 million, respectively, to pay down a portion of the existing Term Loan. Due to the early payments on the Term Loan, is subject to quarterly amortization of the principal amount on the last business day of each fiscal quarter of the Company (commencingrecorded losses on Marchextinguishment of debt of $1.6 million and $4.7 million during the three and six months ended June 30, 2018) in such amounts as are set forth in2018, respectively. Separately, the Credit Agreement. The Term Loan andCompany also repaid the entire outstanding $10.0 million balance on its Revolving Credit Facility will mature on October 6, 2022, provided that if any of the Company’s 3.25% Convertible Senior Notes due 2020 (the “Convertible Senior Notes”) remain outstanding on the date that is 91 days prior to the maturity date of the Convertible Senior Notes and the Company has not satisfied certain Refinancing Conditions (as defined in the Credit Agreement), then the maturity date for the Term Loan and the Revolving Credit Facility will be the date that is 91 days prior to the maturity date of the Convertible Senior Notes.
The Company must prepay loans outstanding under the Credit Agreement in an amount equal to 50% of Excess Cash Flow (as defined in the Credit Agreement) for each fiscal year (commencing with fiscal 2018) less any amount voluntarily prepaid during such fiscal year, but only if the Consolidated Senior Secured Leverage Ratio (as defined in the Credit Agreement) as of the last day of such fiscal year is greater than or equal to 1.25 to 1.00. The Company must also prepay loans outstanding under the Credit Agreement in an amount equal to 100% of the Net Cash Proceeds (as defined in the Credit Agreement) from (i) certain property dispositions and (ii) the receipt of certain other amounts not in the ordinary course of business, in each case, if not reinvested within a specified time period as contemplated in the Credit Agreement, and with a carve out of up to 30% of the Net Cash Proceeds of the contemplated sale leaseback transaction relating to the Company’s Summers Ridge property to the extent the excluded amounts are used for specified purposes.Agreement.
The Credit Agreement contains affirmative and negative covenants that are customary for credit agreements of this nature. The negative covenants include, among other things, limitations on asset sales, mergers, indebtedness, liens, dividends and other distributions, investments and transactions with affiliates. The Credit Agreement contains two financial covenants: (i) a maximum Consolidated Leverage Ratio (as defined in the Credit Agreement) as of the last day of each fiscal quarter for the most recently completed four fiscal quarters of (a) 5.00 to 1.00 for the fiscal quarter ending December 31, 2017, (b) 4.25 to 1.00 for the fiscal quarters ending March 31, 2018 through December 31, 2018 and (c)(b) 3.50 to 1.00 for the fiscal quarter ending March 31, 2019 and each fiscal quarter thereafter; and (ii) a minimum Consolidated Fixed Charge Coverage Ratio (as defined in the Credit Agreement) of 1.25 to 1.00 as of the end

of any fiscal quarter for the most recently completed four fiscal quarters. The Company was in compliance with all financial covenants as of June 30, 2018.
The Term Loan consists of the following (in thousands):
 June 30, 2018 December 31, 2017
Principal balance$83,187
 $245,000
Unamortized deferred issuance costs(2,227) (7,422)
Term Loan, net80,960
 237,578
Less: current portion
 (10,184)
Term Loan, non-current$80,960
 $227,394
The remaining principal balance of the Term Loan as of June 30, 2018 of $83.2 million is due upon maturity on October 6, 2022.
Interest expense recognized on the Term Loan for the three and six months ended June 30, 2018 totaled $1.6 million and $3.7 million, respectively, for the stated interest. Amortization of debt issuance costs associated with the Term Loan was $0.2 million and $0.5 million, respectively, for the three and six months ended June 30, 2018, and was recorded to interest expense in the Company's Consolidated Statements of Operations.
Interest expense and amortization of debt issuance costs associated with the Revolving Credit Facility for the six months ended June 30, 2018 was immaterial.
Note 7. Stockholders’ Equity
Issuances and Repurchases of Common Stock
TheDuring the six months ended June 30, 2018, the Company issued 99,669266,696 shares of common stock in conjunction with the vesting and release of RSUs, 954,527RSUs. The Company also issued 553,323 shares of common stock upon the exercise of stock options and 58,09921,342 shares of common stock in connection with the Company’s employee stock purchase plan (the “ESPP”), resulting in net proceeds to the Company of approximately $15.2$9.5 million during the ninesix months ended SeptemberJune 30, 2017.2018. The Company repurchased no shares of common stock under its previously announced share repurchase program during nine months ended September 30, 2017. The Company withheld

25,079 78,729 shares of outstanding common stock in connection with payment of minimum tax withholding obligations for certain employees relating to the lapse of restrictions on certain RSUs with a value of approximately $0.5$3.6 million during the ninesix months ended SeptemberJune 30, 2018.
During the six months ended June 30, 2017, the Company issued 95,669 shares of common stock in conjunction with the vesting and release of RSUs. The Company also issued 411,781 shares of common stock upon the exercise of stock options and 32,358 shares of common stock in connection with the Company’s ESPP, resulting in net proceeds to the Company of approximately $5.3 million during the six months ended June 30, 2017. The Company repurchased 1,152,386 shares of common stock under its previously announced share repurchase program for approximately $19.6 million during the nine months ended September 30, 2016. The Company withheld 25,69923,579 shares of outstanding common stock in connection with payment of minimum tax withholding obligations for certain employees relating to the lapse of restrictions on certain RSUs with a value of approximately $0.4$0.5 million during the ninesix months ended SeptemberJune 30, 2016. 2017.
As discussed in Note 6, during the three months ended June 30, 2018, the Company issued 1,270,406 shares of Septembercommon stock in exchange for $38.6 million in aggregate principal of the Convertible Senior Notes. During the six months ended June 30, 2017, there was $35.02018, the Company issued 3,697,953 shares of common stock in exchange for $108.8 million available underin aggregate principal of the Company’s share repurchase program.Convertible Senior Notes.

Stock-Based Compensation
The compensation expense related to the Company’s stock-based compensation plans included in the accompanying Consolidated Statements of Operations was as follows (in thousands):
  Three months ended September 30, Nine months ended September 30,
 
  2017 2016 2017 2016
 Cost of sales$117
 $129
 $354
 $498
 Research and development396
 365
 1,212
 1,006
 Sales and marketing434
 376
 1,341
 645
 General and administrative932
 864
 3,031
 3,671
 Total stock-based compensation expense$1,879
 $1,734
 $5,938
 $5,820
  Three months ended June 30, Six months ended June 30,
 
  2018 2017 2018 2017
 Cost of sales$265
 $107
 $496
 $237
 Research and development601
 404
 1,193
 816
 Sales and marketing717
 437
 1,513
 907
 General and administrative1,897
 1,190
 3,213
 2,099
 Total stock-based compensation expense$3,480
 $2,138
 $6,415
 $4,059
Total compensation expense recognized for the three and ninesix months ended SeptemberJune 30, 20172018 includes $1.0$0.9 million and $3.1$1.9 million related to stock options and $0.9$2.6 million and $2.8$4.5 million related to RSUs. Total compensation expense recognized for the three and ninesix months ended SeptemberJune 30, 20162017 includes $1.1$1.0 million and $3.5$2.1 million related to stock options and $0.6$1.1 million and $2.3$2.0 million related to RSUs. As of SeptemberJune 30, 2017,2018, total unrecognized compensation expense related to non-vested stock options was $5.3$6.2 million, which is expected to be recognized over a weighted-average period of approximately 2.1 years. As of SeptemberJune 30, 2017,2018, total unrecognized compensation expense related to non-vested restricted stock was $6.1$13.8 million, which is expected to be recognized over a weighted-average period of approximately 2.4 years. Compensation expense capitalized to inventory and compensation expense related to the Company’s ESPP were not material for the three and ninesix months ended SeptemberJune 30, 20172018 or 2016.2017.
The estimated fair value of each stock option was determined on the date of grant using the Black-Scholes option valuation model with the following weighted-average assumptions for the option grants.
  Nine months ended September 30,
 
  2017 2016
 Risk-free interest rate2.31% 1.47%
 Expected option life (in years)6.63
 6.59
 Volatility rate36% 36%
 Dividend rate% %
 Six months ended June 30,
 2018 2017
Risk-free interest rate2.49% 2.31%
Expected option life (in years)6.29
 6.63
Volatility rate36% 36%
Dividend rate% %
The weighted-average fair value of stock options granted during the ninesix months ended SeptemberJune 30, 2018 and 2017 was $18.76 and 2016 was $8.71, and $5.97, respectively. The Company granted 253,844159,017 and 670,733253,844 stock options during the ninesix months ended SeptemberJune 30, 2018 and 2017, respectively. The Company granted 221,502 and 2016,332,216 RSUs during the six months ended June 30, 2018 and 2017, respectively. The fair value of RSUs is determined based on the closing market price of the Company’s common stock on the grant date. The weighted-average fair value of RSUs granted during the ninesix months ended SeptemberJune 30, 2018 and 2017 was $48.45 and 2016 was $21.61 and $16.06, respectively. The Company granted 335,716 and 182,425 shares of restricted stock during the nine months ended September 30, 2017 and 2016,$21.55, respectively.

Note 8. Industry and Geographic Information
The Company operates in one reportable segment. Sales to customers outside the U.S. represented $21.6$84.6 million (13%(31%) and $23.1$14.7 million (17%(13%) of total revenue for the ninesix months ended SeptemberJune 30, 20172018 and 2016,2017, respectively. As of SeptemberJune 30, 20172018 and December 31, 2016, balances2017, accounts receivable due from foreign customers were $4.7$18.9 million and $6.8$18.8 million, respectively.

The Company had sales to individual customers in excess of 10% of total revenues, as follows:
  Nine months ended September 30,
 
  2017 2016
 Customer:   
 A21% 16%
 B21% 14%
 C13% 13%
  55% 43%
 Six months ended 
 June 30,
 2018 2017
Customer:   
A18% 16%
B13% 15%
C13% 22%
 44% 53%
As of SeptemberJune 30, 20172018 and December 31, 2016,2017, accounts receivable from customers with balances due in excess of 10% of total accounts receivable totaled $34.2$19.9 million and $13.9$44.4 million, respectively.
Consolidated net revenues by product category for the three and six months ended June 30, 2018 and 2017 are as follows (in thousands):
 Three months ended June 30, Six months ended 
 June 30,
 2018 2017 2018 2017
Rapid Immunoassay$16,689
 $21,983
 $97,374
 $79,516
Cardiac Immunoassay69,850
 
 138,294
 
Specialized Diagnostic Solutions12,694
 13,070
 27,565
 26,118
Molecular Diagnostic Solutions3,922
 3,214
 9,065
 6,325
Total revenues$103,155
 $38,267
 $272,298
 $111,959
Note 9. Commitments and Contingencies
LegalOperating Lease - Summers Ridge Property
On January 5, 2018, the Company entered into a sale and leaseback transaction for the San Diego property on Summers Ridge Road (the "Summers Ridge Property") that was acquired as part of the Triage Business from Alere discussed in Note 11. The Summers Ridge Property was included as assets held for sale on the Consolidated Balance Sheet as of the year ended December 31, 2017. The Company sold the Summers Ridge Property for a net consideration of $146.6 million. In addition, the Company entered into a lease agreement with the buyer to lease two of the four buildings on the Summers Ridge Property for an initial term of 15 years. The Summers Ridge lease is subject to certain must-take provisions related to an additional two buildings, consisting of approximately 124,461 square feet, upon the expiration of certain leases with the tenants of the other portion of the Summers Ridge Property. The initial term can be extended by the Company for two additional five-year terms upon satisfaction of certain conditions.
The approximate future minimum lease payments of the Summers Ridge Property are $3.0 million for the remainder of 2018, $6.5 million for 2019, $7.6 million for 2020, $7.8 million for 2021, $8.0 million for 2022, $8.3 million for 2023 and $86.2 million in the aggregate after 2023.
Litigation and Other Legal Proceedings
In Beckman Coulter Inc. v. Quidel Corporation, which was filed in the Superior Court for the County of San Diego, California, on November 27, 2017, Beckman Coulter (“Beckman”) alleges that a provision of an agreement between Quidel and Beckman violates state antitrust laws. Our acquisition of the BNP Business consisted of assets and liabilities relating to a contractual arrangement with Beckman (the “Beckman Agreement”) for the supply of antibodies and other inputs related to,

and distribution of, the Triage® BNP Test for the Beckman Coulter Access Family of Immunoassay Systems. The Beckman Agreement further provides that Beckman, for a specified period, cannot research, develop, manufacture or sell an assay for use in the diagnosis of cardiac diseases that measures or detects the presence or absence of BNP or NT-pro-BNP (a related biomarker). In the lawsuit, Beckman asserts that this provision violates certain state antitrust laws and is unenforceable. Beckman contends that it has suffered damages due to this provision and seeks a declaration that this provision is void. Trial in this matter is currently scheduled to begin on August 30, 2019.
We deny that the contractual provision is unlawful, deny any liability with respect to this matter, and intend to vigorously defend ourselves. There are multiple factors that prevent us from being able to estimate the amount of loss, if any, that may result from this matter including: (1) we are vigorously defending ourselves and believe that we have a number of meritorious legal defenses; (2) there are unresolved questions of law and fact that could be important to the ultimate resolution of this matter; and (3) discovery is in the very early stages. Accordingly, at this time, we are not able to estimate a possible loss or range of loss that may result from this matter or to determine whether such loss, if any, would have a material adverse effect on our financial condition, results of operations or liquidity.
From time to time, the Company is involved in variousother litigation and proceedings, including matters related to product liability claims, commercial disputes and litigationintellectual property claims, as well as regulatory, employment, and other claims related to our business. The Company accrues for legal claims when, and to the extent that, amounts associated with the claims become probable and are reasonably estimable. The actual costs of resolving legal claims may be substantially higher or lower than the amounts accrued for those claims. For those matters from timeas to time inwhich we are not able to estimate a possible loss or range of loss, we are not able to determine whether the ordinary courseloss will have a material adverse effect on our business, financial condition or results of business. operations or liquidity. No accrual has been recorded as of June 30, 2018 and December 31, 2017 related to such matters as they are not probable and/or reasonably estimable. 
Management believes that all such current legal actions, in the aggregate, will not have a material adverse effect on the Company. However, the resolution of, or increase in any accruals for, one or more matters may have a material adverse effect on the Company's results of operations and cash flows.
The Company also maintains insurance, including coverage for product liability claims, in amounts which management believes are appropriate given the nature of its business. No accruals have been recorded as of September 30, 2017 or as of December 31, 2016 related to such matters as they are not probable and/or reasonably estimable.
Licensing Arrangements
The Company has entered into various licensing and royalty agreements, which largely require payments by the Company based on specified product sales as well as the achievement of specified milestones. The Company had royalty and license expenses relating to those agreements of approximately $0.2 million and $0.1 million for the three months ended September 30, 2017 and 2016, respectively. The Company had royalty and license expenses relating to those agreements of approximately $0.5 million and $0.6 million for the nine months ended September 30, 2017 and 2016, respectively.
Research and Development Agreements
The Company has entered into various research and development agreements that provide it with rights to develop, manufacture and market products using the intellectual property and technology of its collaborative partners. Under the terms of certain of these agreements, the Company is required to make periodic payments based on achievement of certain milestones or resource expenditures. These milestones generally include achievement of prototype assays, validation lots and clinical trials. As of September 30, 2017 and December 31, 2016, total future commitments under the terms of these agreements are estimated at $0.4 million and $2.3 million, respectively. The commitments will fluctuate as the Company agrees to new phases of development under the existing arrangements.
Note 10. Fair Value Measurements
The following table presents the Company’s hierarchy for its assets and liabilities measured at fair value on a recurring basis as of the following periods (in thousands):
September 30, 2017 December 31, 2016June 30, 2018 December 31, 2017
Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 TotalLevel 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total
Assets:               
Cash equivalents$
 $
 $
 $
 $133,540
 $
 $
 $133,540
Total assets measured at fair value$
 $
 $
 $
 $133,540
 $
 $
 $133,540
Liabilities:                              
Contingent consideration
 
 4,680
 4,680
 
 
 5,175
 5,175
$
 $
 $22,029
 $22,029
 $
 $
 $24,301
 $24,301
Deferred consideration
 182,559
 
 182,559
 
 223,158
 
 223,158
Total liabilities measured at fair value$
 $
 $4,680
 $4,680
 $
 $
 $5,175
 $5,175
$
 $182,559
 $22,029
 $204,588
 $
 $223,158
 $24,301
 $247,459
There were no transfers of assets or liabilities between Level 1, Level 2 and Level 3 categories of the fair value hierarchy during the three and ninesix month periods ended SeptemberJune 30, 20172018 and the year ended December 31, 2016.2017.
In connection with the acquisition of the BNP Business, the Company will pay up to $280.0 million in cash, of which $256.0 million is guaranteed and is considered deferred consideration and $24.0 million is contingent consideration. The fair value of the deferred consideration was determined to be $220.6 million on the acquisition date based on the net present value of cash payments using an estimated borrowing rate using a quoted price for a similar liability. The Company used Level 1 inputsrecorded $5.4 million for the accretion of interest on the deferred consideration during the six months ended June 30, 2018. The fair value of contingent consideration on the acquisition date was $19.7 million and was calculated using a discounted probability weighted valuation model. Due to determinechanges in the estimated payments and a shorter discounting period related to the BNP Business contingent consideration, the fair value of its cash equivalents, which primarily consistthe contingent consideration liabilities changed during the three and six months ended June 30, 2018. These changes resulted in a $0.7 million loss recorded to general and administrative expense in the Consolidated Statements of funds held in government money market accountsOperations during the three and commercial paper. As such, the carrying value of cash equivalents approximates fair value. During the third quarter of 2017, the Company converted all cash equivalents to cash, and therefore, had no cash equivalents as of Septembersix months ended June 30, 2017. As of December 31, 2016, the carrying value of cash equivalents was $133.5 million.2018.
In conjunction with the acquisitions of BioHelix Corporation in May 2013, AnDiaTec GmbH & Co. KG in August 2013 and Immutopics, Inc. in March 2016, the Company has recorded contingent consideration of $4.7$3.6 million as of SeptemberJune 30, 20172018 and $5.2$4.6 million as of December 31, 2016.2017. The Company assesses the fair value of contingent consideration to be settled in cash

related to these prior acquisitions using a discounted revenue model. Significant assumptions used in the measurement include revenue projections and discount rates. This fair value measurement of contingent consideration is based on significant inputs not observed in the market and thus represent Level 3 measurements.
Changes in estimated fair value of contingent consideration liabilities from December 31, 20162017 through SeptemberJune 30, 20172018 are as follows (in thousands):

Contingent consideration liabilities
(Level 3 measurement)
Balance at December 31, 2016$5,175
Cash payments(498)
Unrealized loss on foreign currency translation3
Balance at September 30, 2017$4,680

Contingent consideration liabilities
(Level 3 measurement)
Balance at December 31, 2017$24,301
Cash payments(3,017)
Loss recorded for fair value adjustments745
Balance at June 30, 2018$22,029
Note 11. Acquisition
On May 16,October 6, 2017, the Company acquiredclosed on the InflammaDry®acquisition of the Triage® MeterPro® Cardiovascular (CV) and AdenoPlus® diagnostic businessestoxicology business ("Triage Business), and B-type Naturietic Peptide (BNP) assay business run on Beckman Coulter analyzers ("BNP Business" and, together, the "Triage and BNP Businesses") from RPS Diagnostics (“RPS”Alere Inc. ("Alere"), a developer and manufacturer of rapid, point-of-care (“POC”) diagnostic tests for the eye health and primary care markets, for approximately $13.7 million in cash. The purchase price has been preliminarily allocated as follows: $6.1 million to purchased technology and $7.6 million to goodwill.. The acquisition has been accounted for in conformity with ASC Topic 805, Business CombinationsThe InflammaDry and AdenoPlus products are rapid, lateral-flow based, POC products for the detection of infectious and inflammatory diseases and conditions of the eye. Revenues for these products are reflected in the Company’s Immunoassay revenue category. The purchase price allocation related to this acquisition is preliminary as the Company obtains additional information related to working capital items.
Note 12. Subsequent Events
Acquisition of Triage and BNP Businesses
On October 6, 2017, the Company acquired the Triage Business and BNP Business from Alere Inc. In connection with the acquisition of the Triage Business, the Company paid $400.0$399.8 million in cash (subject to certain inventory related adjustments set forth in the Amended and Restated Triage Purchase Agreement) and assumed certain liabilities. These acquisitions significantly enhance the Company's revenue profile and expandsexpand the Company's geographic footprint and product diversity. The Company used proceeds from the Term Loan (defined and discussed in Note 6) of $245.0 million and cash on hand to pay (i) the consideration for the Triage Business and (ii) fees and expenses incurred in connection with the acquisition of the Triage Business and BNP Business.Businesses. In connection with the acquisition of the BNP Business, the Company will:Company: (i) will pay (subject to certain inventory related adjustments set forth(A) $16.0 million in the Amended and Restated BNP Purchase Agreement) (A)cash plus up to $40.0an additional $24.0 million in cash,contingent consideration, payable in five annual installments of up to $8.0 million, the first of which will bewas due and paid onin April 30, 2018, and (B) $240.0 million in cash, payable in six annual installments of $40.0 million each, the first of which will bewas due and paid onin April 30, 2018;2018 and (C) $0.2 million in cash for certain inventory related adjustments; and (ii) assumeassumed certain liabilities. See Note 6 for further discussion
The purchase price consideration is as follows (in thousands):
Cash consideration—Triage Business$399,798
Deferred consideration—BNP Business220,550
Contingent consideration—BNP Business19,700
Inventory related adjustment205
Net consideration$640,253
The fair value of the Senior Credit Agreement entered intodeferred consideration was determined to be $220.6 million on October 6, 2017.the acquisition date based on the net present value of cash payments using an estimated borrowing rate using a quoted price for a similar liability. The fair value of contingent consideration on the acquisition date of $19.7 million was calculated using a discounted probability weighted valuation model.
The Company is still finalizing the allocation of the purchase price, therefore, the purchase price allocation or the provisional measurements of intangible assets, goodwill and deferred income tax assets or liabilities may be adjusted if the Company recognizes additional assets or liabilities to reflect new information obtained about facts and circumstances that existed as of the acquisition date that, if known, would have affected the measurement of the amounts recognized as of that date. The Company expects to complete the allocation of purchase price during fiscal year 2018.

The components of the preliminary purchase price allocation at the acquisition date is as follows (in thousands):
Prepaid expenses and other current assets$796
Assets held for sale146,540
Inventories52,205
Property, plant and equipment10,608
Intangible assets184,900
Goodwill245,531
Other non-current assets182
Total assets acquired$640,762
Other current liabilities(509)
Total net assets and liabilities acquired$640,253
Goodwill represents the excess of the total purchase price over the fair value of the underlying net assets, largely arising from synergies expected to be achieved by the combined Company and the expanded revenue profile and product diversity. The goodwill is expected to be fully deductible for tax purposes.

The fair value of the identified intangible assets was determined primarily using an income-based approach. Intangible assets are amortized on a straight-line basis over the respective amortization periods. The following sets forth results of the amounts assigned to the identifiable intangible assets acquired (in thousands):
Intangible Asset Amortization period Fair value of assets acquired
Purchased technology 10 years $52,400
Customer relationships 7 years 115,000
Trademarks 10 years 17,500
Total intangible assets   $184,900

ITEM 2.    Management’s Discussion and Analysis of Financial Condition and Results of Operations
In this Quarterly Report, all references to “we,” “our” and “us” refer to Quidel Corporation and its subsidiaries.
Future Uncertainties and Forward-Looking Statements
This Quarterly Report on Form 10-Q contains forward-looking statements within the meaning of the federal securities laws that involve material risks, assumptions and uncertainties. Many possible events or factors could affect our future financial results and performance, such that our actual results and performance may differ materially from those that may be described or implied in the forward-looking statements. As such, no forward-looking statement can be guaranteed. Differences in actual results and performance may arise as a result of a number of factors including, without limitation, the risks set forth in Part II, Item 1A of this Form 10-Q; our reliance on developmentsales of new technologies,our influenza diagnostic tests; fluctuations in our operating results resulting from the timing of the onset, length and severity of cold and flu seasons, seasonality, government and media attention focused on influenza and the related potential impact on humans from novel influenza viruses, adverse changes in competitive conditions in domestic and international markets, the reimbursement system currently in place and future changes to that system, changes in economic conditions in our domestic and international markets, lower than anticipated market penetration of our products, the quantity of our product in our distributors’ inventory or distribution channels, changes in the buying patterns of our distributors, and changes in the healthcare market and consolidation of our customer base; our development and protection of proprietary technology rights; our development of new technologies, products and markets; our reliance on a limited number of key distributors; our reliance on sales of our influenza diagnostics tests; our ability to manage our growth strategy, including our ability to effect strategic acquisitions and to integrate companies or technologies we have acquired or may acquire including our ability to achieve anticipated synergies and process improvements; intellectual property risks, including but not limited to, infringement litigation; our inability to settle conversions of our Convertible Senior Notes in cash; the effect on our operating results from the trigger of the conditional conversion feature of our Convertible Senior Notes; the amount of, and our ability to repay, renew or extend, our outstanding debt and its impact on our operations and our ability to obtain financing; our ability to generate cash, including to service our debt; our need for additional funds to finance our capital or operating needs; the financial soundness of our customers and suppliers; acceptance of our products among physicians and other healthcare providers; competition with other providers of diagnostic products; adverse actions or delays in new product reviews or related to currently-marketed products by the U.S. Food and Drug Administration (the “FDA”) or other regulatory authorities or loss of any previously received regulatory approvals or clearances; changes in government policies; our exposure to claims and litigation, including litigation currently pending against us; costs of or our failure to comply with government regulations in addition to FDA regulations; compliance with other government regulations such as safe working conditions, manufacturing practices, environmental protection, fire hazardrelating to the handling, storage and disposal of hazardous substances; third-party reimbursement policies; our failure to comply with laws and regulations relating to billing and payment for healthcare services; our ability to meet demand for our products; interruptions in our supply of raw materials; product defects; business risks not covered by insurance andinsurance; our exposure to other litigation claims; interruption to our computer systems;cyber-based attacks and security breaches; competition for and loss of management and key personnel; international risks, including but not limited to, compliance with product registration requirements, exposure to currency exchange fluctuations and foreign currency exchange risk sharing arrangements, longer payment cycles, lower selling prices and greater difficulty in collecting accounts receivable, reduced protection of intellectual property rights, political and economic instability, taxes, and diversion of lower priced international products into U.S. markets; changes in tax rates and exposure to additional tax liabilities or assessments; risks relating to the acquisition and integration of the Triage and BNP Businesses; Alere’s failure to perform under various transition agreements relating to our acquisition of the Triage and BNP Businesses; that we may incur substantial costs to build our information technology infrastructure to transition the Triage and BNP Businesses; that we may have to write off goodwill relating to our acquisition of the Triage and BNP Businesses; our ability to manage our growth strategy; the level of our indebtedness; the amount of, and our ability to repay, renew or extend, our outstanding debt and its impact on our operations and our ability to obtain financing; that substantially the Senior Credit Facility is secured by substantially all of our assets; our prepayment requirements under the Senior Credit Facility; the agreements for our indebtedness place operating and financial restrictions on the Company; that an event of default could trigger acceleration of our outstanding indebtedness; the effect on our operating results from the trigger of the conditional conversion feature of our Convertible Senior Notes; that we may incur additional indebtedness; increases in interest rate relating to our variable rate debt; dilution resulting from future sales of our equity; volatility in our stock price; provisions in our charter documents, Delaware law and the indenture governing our Convertible Senior Notes that might delay or impede stockholder actions with respect to business combinations or similar transactions; and our intention of not paying dividends. Forward-looking statements typically are identified by the use of terms such as “may,” “will,” “should,” “might,” “expect,” “anticipate,” “estimate,” “plan,” “intend,” “goal,” “project,” “strategy,” “future,” and similar words, although some forward-looking statements are expressed differently. Forward-looking statements in this Quarterly Report include, among others, statements concerning: our outlook for the remainder of 2018 regarding our strategy; revenue growth, gross margins and earnings, including the sources of expected growth; that we expect to continue to make substantial expenditures for research and development activities; projected capital expenditures for the remainder of the 2017 fiscal year2018; and our source of funds for such expenditures; the sufficiency of our liquidity and capital resources; our strategy, goals, initiatives and objectives; anticipated new product and development results; future commitments under existing research development agreements; the impact and timing of expected adoption of new accounting standards; that we will continueour exposure to, make substantial expendituresand defenses against, claims and litigation; the sufficiency of our liquidity and our short-term needs for sales and marketing, manufacturing and research and development activities;capital; our use of foreign currency hedging agreements; that we may enter intoincur additional foreign currency exchange risk sharing arrangements; our exposure to claims and litigation;debt or issue additional equity; and our intention to continue to evaluate newtechnology, product lines technology and acquisition opportunities. The risks described under “Risk Factors” in Item 1A of this Quarterly Report on Form 10-Q and our Annual Report on Form 10-K for the year ended December 31, 2016,2017, and elsewhere herein and in reports and registration statements that we file with the Securities

and Exchange Commission (the “SEC”) from time to time, should be carefully considered. You are cautioned not to place undue reliance on these forward-looking statements, which reflect management’s analysis only as of the date of this Quarterly Report.
The following should be read in conjunction with the Consolidated Financial Statements and Notes thereto beginning on page 3 of this Quarterly Report. Except as required by law, we undertake no obligation to publicly release the results of any revision or update of these forward-looking statements, whether as a result of new information, future events or otherwise.

Overview
We have a leadership position in the development, manufacturing and marketing of diagnostic testing solutions. These diagnostic testing solutions are separated into our four product categories, including: immunoassays,categories: rapid immunoassay, cardiac immunoassay, specialized diagnostic solutions and molecular assays, virology and specialty products.diagnostic solutions. We sell our products directly to end users and distributors, in each case, for professional use in physician offices, hospitals, clinical laboratories, reference laboratories, leading universities, retail clinics, pharmacies and wellness screening centers. We market our products in the U.S. through a network of national and regional distributors and a direct sales force. Internationally, we sell primarily through distributor arrangements.
Recent Developments
On October 6, 2017, the Company acquired the cardiovascular and toxicology Triage® MeterPro business (“Triage Business”) and Beckman Coulter Access Family of Immunoassay Systems (the “BNP Business”) from Alere Inc. In connection with the acquisition of the Triage Business, the Company paid $400.0 million (subject to certain inventory related adjustments set forth in the Amended and Restated Triage Purchase Agreement) in cash and assumed certain liabilities. The Company used proceeds from its new Term Loan of $245.0 million and cash on hand to pay (i) the consideration for the Triage Business and (ii) fees and expenses incurred in connection with the acquisition of the Triage Business and the BNP Business. In connection with the acquisition of the BNP Business, the Company will: (i) pay (subject to certain inventory related adjustments set forth in the Amended and Restated BNP Purchase Agreement) (A) up to $40.0 million in cash, payable in five annual installments of $8.0 million, the first of which will be paid on April 30, 2018, and (B) $240.0 million in cash, payable in six annual installments of $40.0 million each, the first of which will be paid on April 30, 2018; and (ii) assume certain liabilities. See Note 12 of the Notes to the Consolidated Financial Statements for additional information.
Also on October 6, 2017 the Company entered into a Credit Agreement (the “Credit Agreement”), which provided the Company with a $245.0 million senior secured term loan facility (the “Term Loan”) and a $25.0 million revolving credit facility (the “Revolving Credit Facility”), together (the “Senior Credit Facility”). On the closing date of the Credit Agreement, the Company borrowed the entire amount of the Term Loan and $10.0 million under the Revolving Credit Facility. The Company used the proceeds of the Term Loan along with its cash on hand, to pay the consideration for Triage Business. See Note 6 of the Notes to the Consolidated Financial Statements for additional information.
Outlook
We continueanticipate continued revenue growth during the second half of 2018 and a related positive impact on gross margin and earnings. This growth is expected to realize expansionbe driven primarily by the impact of our footprint for Sofia and molecular platforms. For the remainder of 2017, we will focus on integrating the Triage and BNP Businesses and sales of our Sofia assays and molecular products. In addition, we expect continued and significant investment in research and development activities as we invest in our next generation immunoassay and molecular platforms. We will continue toour focus on prudently managing our business and delivering long-term sustainable growth throughsolid financial results, while at the creation of a broader-based diagnostic company serving our existing customers as well as targeting larger and faster growing markets. We willsame time striving to continue to invest inintroduce new products to the market and maintaining our emphasis on research and development focused on expansion of our immunoassay and molecular programs. In addition,investments for longer term growth. Finally, we continue to invest in our commercial organization and related marketing programs, in support of recent product launches. We will also continue to evaluate opportunities to acquire new product lines, technologies and companies that would enable us to expand more quickly.companies.
Three months ended SeptemberJune 30, 20172018 compared to the three months ended SeptemberJune 30, 20162017
Total Revenues
The following table compares total revenues for the three months ended SeptemberJune 30, 20172018 and 20162017 (in thousands, except percentages):
 For the three months ended    
September 30, Increase (Decrease)
 2017 2016 $ %
Immunoassays$36,458
 $30,573
 $5,885
 19 %
Molecular2,781
 2,469
 312
 13 %
Virology8,830
 9,354
 (524) (6)%
Specialty products2,557
 2,721
 (164) (6)%
Royalties, grants and other268
 4,224
 (3,956) (94)%
Total revenues$50,894
 $49,341
 $1,553
 3 %

 Three months ended 
 June 30,
 Increase (Decrease)
 2018 2017 $ %
Rapid Immunoassay$16,689
 $21,983
 $(5,294) (24)%
Cardiac Immunoassay69,850
 
 69,850
 N/A
Specialized Diagnostic Solutions12,694
 13,070
 (376) (3)%
Molecular Diagnostic Solutions3,922
 3,214
 708
 22 %
Total revenues$103,155
 $38,267
 $64,888
 170 %
For the three months ended SeptemberJune 30, 2017,2018, total revenue increased to $50.9$103.2 million from $49.3$38.3 million in the prior period. The Company realized increasesincrease in immunoassaytotal revenues due to growthwas driven by Cardiac Immunoassay revenue from the acquisition of the Triage and BNP Businesses in Influenza, Strep A and RSV products, as well as the addition of InflammaDry® and AdenoPlus® diagnostic products acquired from RPS.October 2017. The 22% increase in our molecularMolecular revenues was driven by continued gains on our Solana platform. These increases were partially offset by alower Rapid Immunoassay sales. This decline in grant revenuesRapid Immunoassay sales was driven primarily by differences in the timing of approximately $3.8 million as the amended Billcold and Melinda Gates Foundation grant was fully recognized by the third quarter of 2016.flu season versus prior year.
Cost of SalesGross Profit
Cost of sales was $19.4Gross profit increased to $57.7 million, or 38%56% of total revenues,revenue for the three months ended SeptemberJune 30, 20172018, compared to $17.7$18.8 million, or 36%49% of total revenues,revenue for the three months ended SeptemberJune 30, 2016.2017. The increase in cost of salesincreased gross profit was mainly driven by higher revenues. Inthe addition costsof the Cardiac Immunoassay products from the acquisition of the Triage and BNP Businesses in October 2017. Gross margin increased associatedby 7% compared to the same period in the prior year due to the improved product mix with the integrationaddition of the InflammaDry and AdenoPlus diagnostic businesses acquired from RPS and higher depreciation expense related to theCardiac Immunoassay products as well as manufacturing efficiencies driven by increased number of Sofia and Solana instrument placements. These increases also contributed to the increased cost of sales as a percentage of total revenues. Additionally, the decrease in grant revenue contributed to the increase in cost of sales as a percentage of total revenues.production volumes.

Operating Expenses
The following table compares operating expenses for the three months ended SeptemberJune 30, 20172018 and 20162017 (in thousands, except percentages):
For the three months ended September 30,    Three months ended June 30,    
2017 2016    2018 2017    
Operating
expenses
 As a % of
total
revenues
 Operating
expenses
 As a % of
total
revenues
 
 Increase (Decrease)
Operating
expenses
 As a % of
total
revenues
 Operating
expenses
 As a % of
total
revenues
 
 Increase (Decrease)
$ %$ %
Research and development$7,468
 15% $8,801
 18% $(1,333) (15)%$13,284
 13% $7,627
 20% $5,657
 74%
Sales and marketing$12,898
 25% $11,853
 24% $1,045
 9 %$27,545
 27% $13,064
 34% $14,481
 111%
General and administrative$6,580
 13% $6,364
 13% $216
 3 %$11,500
 11% $6,783
 18% $4,717
 70%
Amortization of intangible assets from acquired businesses and technology$2,503
 5% $2,273
 5% $230
 10 %
Acquisition and integration costs$4,591
 9% $197
 0% $4,394
 2,230 %$4,935
 5% $2,379
 6% $2,556
 107%
Research and Development Expense
Research and development expense for the three months ended SeptemberJune 30, 2017 decreased2018 increased from $8.8$7.6 million to $7.5$13.3 million due primarily to a decrease in outside service spending in support ofadditional expenses associated with the Triage Business and investments on the Savanna MDx and Sofia platforms.molecular diagnostic platform.
Research and development expenses include direct external costs such as fees paid to third-party contractors and consultants, and internal direct and indirect costs such as compensation and other expenses for research and development personnel, supplies and materials, clinical trials and studies, facility costs and depreciation.
Sales and Marketing Expense
Sales and marketing expense for the three months ended SeptemberJune 30, 20172018 increased $1.0from $13.1 million to $12.9$27.5 million due primarily todriven by increased expenses associated with the increased personnelnewly acquired Triage and consultingBNP Businesses in October 2017 and InflammaDry and AdenoPlus business in May 2017. Increases were also driven by higher compensation costs associated with the InflammaDry and AdenoPlus diagnostic businesses acquired from RPS during the second quarter of 2017.improved company performance.
General and Administrative Expense
General and administrative expense for the three months ended SeptemberJune 30, 20172018 increased from $6.4$6.8 million lastto $11.5 million compared with the prior year period primarily due to $6.6 million this year, due primarily toadditional costs associated with the Triage and BNP Businesses, higher incentivecompensation and stock based compensation expense.legal fees. General and administrative expense primarily includes personnel costs, information technology, facilities, legal fees and professional service fees.
Amortization of Intangible Assets from Acquired Businesses and Technology
Amortization of intangible assets from acquired businesses and technology for the three months ended September 30, 2017 increased from $2.3 million to $2.5 million due primarily to additional amortization of purchased technology associated

with the InflammaDry and AdenoPlus diagnostic businesses acquired from RPS during the second quarter of 2017. Amortization expense consists of customer relationships, purchased technology and patents and trademarks acquired in connection with our previous and current year acquisitions.
Acquisition and Integration Costs
Acquisition and integration costs for the three months ended SeptemberJune 30, 20172018 increased from $0.2$2.4 million to $4.6$4.9 million compared with the prior year period. This increase is primarily attributable to due diligence and integration costs related to the acquisitions of the Triage and BNP Businesses on October 6, 2017.Businesses.
InterestOther Expense, netNet
Interest expense, net primarily relates to accrued interest for the coupon and accretion of the discount on our 3.25% Convertible Senior Notes due 2020 (“Convertible Senior Notes”) issued in December 2014, accrued interest and amortization of deferred loan costs associated with the Senior Credit Facility and interest paid on our lease obligation associated with our San Diego McKellar facility. InterestThe increase in interest expense of $4.1 million over the last year was $2.8primarily due to the interest incurred under the Senior Credit Facility entered into in connection with the acquisitions of the Triage and BNP Businesses. Loss on extinguishment of debt of $2.4 million relates to the $60.0 million early payment on the Term Loan and $3.0the extinguishment of $38.6 million in aggregate principal of the Convertible Senior Notes in exchange for shares of the Company's common stock during the second quarter of 2018. See further discussion in Note 6 to the Consolidated Financial Statements in this Quarterly Report.

Income Taxes
For the three months ended SeptemberJune 30, 2018 and 2017, and 2016, respectively.
Income Taxes
Wewe recognized income tax expense of $0.2 million and an income tax benefit of $0.3$5.8 million forand $2.0 million, respectively, which represents an effective tax rate of 65% and 14%, respectively. For the three months ended SeptemberJune 30, 2017 and 2016, respectively. The2018, the effective tax rate was lower fordiffered from the three months ended September 30, 2017prior year primarily as no tax benefit was provided for losses incurred in United States Federal and certain state jurisdictions because those losses are offset by a result of the impacts of the full valuation allowance. The Company also has recordedallowance on U.S. earnings and discrete tax expense for foreign jurisdictions and certain state jurisdictionsbenefits during this time period.the period related to stock-based compensation excess tax benefits.
NineSix months ended SeptemberJune 30, 20172018 compared to the ninesix months ended SeptemberJune 30, 20162017
Total Revenues
The following table compares total revenues for the ninesix months ended SeptemberJune 30, 20172018 and 20162017 (in thousands, except percentages):
 For the nine months ended    
September 30, Increase (Decrease)
 2017 2016 $ %
Immunoassays$115,974
 $84,924
 $31,050
 37 %
Molecular9,148
 6,813
 2,335
 34 %
Virology28,044
 30,055
 (2,011) (7)%
Specialty products8,212
 8,387
 (175) (2)%
Royalties, grants and other1,475
 8,616
 (7,141) (83)%
Total revenues$162,853
 $138,795
 $24,058
 17 %
 For the six months ended    
June 30, Increase (Decrease)
 2018 2017 $ %
Rapid Immunoassay$97,374
 $79,516
 $17,858
 22%
Cardiac Immunoassay138,294
 
 138,294
 N/A
Specialized Diagnostic Solutions27,565
 26,118
 1,447
 6%
Molecular Diagnostic Solutions9,065
 6,325
 2,740
 43%
Total revenues$272,298
 $111,959
 $160,339
 143%
For the ninesix months ended SeptemberJune 30, 2017,2018, total revenue increased to $162.9$272.3 million from $138.8$112.0 million in the prior year. The increase in total revenues was driven primarily by Cardiac Immunoassay revenue from the acquisition of the Triage and BNP Businesses. The Company also realized increases in immunoassayRapid Immunoassay revenues due primarily to growth in Influenza, and Strep A products,
bolstered by a robust cold and flu season. In addition, the immunoassay category increased with the addition of InflammaDry and AdenoPlus diagnosticMolecular products acquired from RPS. The increase in our molecular revenues waswere up 43% over prior year driven by continued gains on ourthe Solana platform. These increases were partially offset by a decrease in virology product revenues as we continue to see customers moving to the molecular platforms. Royalties, grants and other revenue decreased as Bill and Melinda Gates Foundation grant was fully recognized by the third quarter of 2016.
Cost of SalesGross Profit
Cost of sales was $60.7Gross profit increased to $163.9 million, or 37%60% of total revenues,revenue for the ninesix months ended SeptemberJune 30, 20172018, compared to $54.3$67.3 million, or 39%60% of total revenues,revenue for the ninesix months ended SeptemberJune 30, 2016.2017. The increase in cost of salesincreased gross profit was due to higher revenues and the decrease in cost of sales as a percentage of total revenues was primarilymainly driven by favorablethe addition of the Cardiac Immunoassay products from the acquisition of the Triage and BNP Businesses and improved product mix, with a higher Influenza and molecular product salesmix of flu products in the current year. Gross margin remained consistent compared to the same period as compared toin the prior year.

Operating Expenses
The following table compares operating expenses for the ninesix months ended SeptemberJune 30, 20172018 and 20162017 (in thousands, except percentages):
For the nine months ended September 30,    For the six months ended June 30,    
2017 2016    2018 2017    
Operating
expenses
 As a % of
total
revenues
 Operating
expenses
 As a % of
total
revenues
 
 Increase (Decrease)
Operating
expenses
 As a % of
total
revenues
 Operating
expenses
 As a % of
total
revenues
 
 Increase (Decrease)
$ %$ %
Research and development22,970
 14% 31,164
 22% $(8,194) (26)%25,905
 10% 15,502
 14% $10,403
 67%
Sales and marketing38,813
 24% 36,376
 26% $2,437
 7 %56,103
 21% 27,287
 24% $28,816
 106%
General and administrative20,483
 13% 19,964
 14% $519
 3 %22,032
 8% 13,903
 12% $8,129
 58%
Amortization of intangible assets from acquired businesses and technology7,184
 4% 6,782
 5% $402
 6 %
Acquisition and integration costs7,022
 4% 568
 0% $6,454
 1,136 %8,402
 3% 2,431
 2% $5,971
 246%
Research and Development Expense
Research and development expense for the ninesix months ended SeptemberJune 30, 2017 decreased2018 increased from $31.2$15.5 million to $23.0$25.9 million due primarily to a decrease in development spending foradditional expenses associated with the Triage Business and investments made on the Savanna MDx platform and lower spend on clinical trial activities.molecular diagnostic platform.

Research and development expenses include direct external costs such as fees paid to consultants, and internal direct and indirect costs such as compensation and other expenses for research and development personnel, supplies and materials, clinical trials and studies, facility costs and depreciation.
Sales and Marketing Expense
Sales and marketing expense for the ninesix months ended SeptemberJune 30, 20172018 increased $2.4$28.8 million to $38.8$56.1 million compared with the prior year period, due primarily to increased expenses associated with the increased personnelnewly acquired Triage and consultingBNP Businesses in October 2017 and InflammaDry and AdenoPlus business in May 2017 and higher compensation costs associated with the InflammaDry and AdenoPlus diagnostic businesses acquired from RPS as well as higher incentive and stock-based compensation.improved company performance.
General and Administrative Expense
General and administrative expense for the ninesix months ended SeptemberJune 30, 20172018 increased from $20.0$13.9 million to $20.5$22.0 million compared with the prior year period, due primarily to additional costs associated with the Triage and BNP Businesses, higher incentive compensation, expense. General and administrative expense primarily includes personnel costs, information technology, facilitieslegal fees and professional service fees.
Amortization of Intangible Assets from Acquired Businesses and Technology
Amortization of intangible assets from acquired businesses and technology for the nine months ended September 30, 2017 increased from $6.8 million to $7.2 million due primarily to additional amortization of purchased technology associated with the InflammaDry and AdenoPlus diagnostic businesses acquired from RPS during the second quarter of 2017. Amortization expense consists of customer relationships, purchased technology and patents and trademarks acquired in connection with our previous and current year acquisitions.
Acquisition and Integration Costs
Acquisition and integration costs for the ninesix months ended SeptemberJune 30, 20172018 increased from $0.6$2.4 million last year to $7.0$8.4 million this year. This increase is primarily attributable to due diligence anddriven by integration costs related to the acquisitions of the Triage and BNP Businesses on October 6, 2017.Businesses.
InterestOther Expense, net
Interest expense was $14.7 million and $5.6 million for the six months ended June 30, 2018 and 2017, respectively. Interest expense, net primarily relates to accrued interest for the coupon and accretion of the discount on our Convertible Senior Notes, issued in December 2014accrued interest and amortization of deferred loan costs associated with the Senior Credit Facility and interest paid on our lease obligation associated with our San Diego McKellar

facility. InterestThe increase in interest expense of $9.1 million over last year was $8.4primarily due to the $4.3 million interest incurred under the Senior Credit Facility and $8.6accretion of interest on deferred consideration of $5.4 million relating to the Triage and BNP Businesses. These increases were partially offset by lower interest expense associated with the Convertible Senior Note due to conversions during the current year. Loss on extinguishment of debt of $7.0 million for the ninesix months ended SeptemberJune 30, 20172018 relates to the $161.8 million early payment on the Term Loan and 2016, respectively.the extinguishment of $108.8 million in aggregate principal of the Convertible Senior Notes in exchange for the Company's common stock during the period. See further discussion in Note 6 to the Consolidated Financial Statements in this Quarterly Report.
Income Taxes
For the ninesix months ended SeptemberJune 30, 20172018 and 2016,2017, we recognized income tax benefit of $1.0 million and income tax expense of $0.4$0.2 million, respectively, which represents an effective tax rate of (3)% and an income tax benefit of $7.1 million,6%, respectively. For the ninesix months ended SeptemberJune 30, 2017,2018, the effective tax rate was lowerdiffered from the prior year primarily as no tax benefit was provided for losses incurred in United States Federal and certain state jurisdictions because those losses are offset by a result of the impacts of the full valuation allowance. allowance on U.S. earnings and discrete tax benefits recorded during the period related to stock-based compensation excess tax benefits.
The Company also has recordedTax Act significantly revises how companies compute their U.S corporate tax expenseliability by, among other provisions, reducing the corporate tax rate from 35% to 21% for tax years beginning after December 31, 2017, implementing a territorial tax system, and requiring a mandatory one-time tax on U.S.-owned undistributed foreign jurisdictionsearnings and certain state jurisdictions during this time period.profits known as the transition tax.
Liquidity and Capital Resources
As of SeptemberJune 30, 20172018 and December 31, 2016,2017, the principal sources of liquidity consisted of the following (in thousands): 
September 30, 2017 December 31, 2016June 30, 2018 December 31, 2017
Cash and cash equivalents$172,994
 $169,508
$38,675
 $36,086
Working capital including cash and cash equivalents$205,540
 $191,782
Working capital including cash and cash equivalents, excluding Convertible Senior Notes (1)$69,080
 $202,881

(1) The Convertible Senior Notes balance of $53.4 million is excluded from working capital amount as such notes may be settled at the Company's option in cash or a combination of cash and shares of common stock.

As of SeptemberJune 30, 2017,2018, we had $173.0$38.7 million in cash and cash equivalents, a $3.5$2.6 million increase from December 31, 2016.2017. Our cash requirements fluctuate as a result of numerous factors, such as the extent to which we generate cash from operations, progress in research and development projects, competition and technological developments and the time and expenditures required to obtain governmental approval of our products as well as asset acquisitions. In addition, we intend to continue to evaluate candidates for new product lines, company or technology acquisitions or technology licensing. If we decide to proceed with any such transactions, we may need to incur additional debt, or issue additional equity, to successfully complete thesuch transactions.
Our primary source of liquidity, other than our holdings of cash and cash equivalents, has been cash flows from operations.operations, debt financings and proceeds from issuance of common stock. Cash generated from operations provides us with the financial flexibility we need to meet normal operating, investing and financing needs. We anticipate that our current cash and cash equivalents, together with cash provided by operating activities will be sufficient to fund our near termnear-term capital and operating needs for at least the next 12 months. Normal operating needs include the planned costs to operate our business, including amounts required to fund working capital and capital expenditures. Our primary short-term needs for capital, which are subject to change, include expenditures related to:  
support of commercialization efforts related to our current and future products, including support of our direct sales force and field support resources both in the United States and abroad;
interest on and repayments of our Convertible Senior Notes, Senior Credit Facility, deferred consideration, contingent consideration and lease obligations;
the continued advancement of research and development efforts;
acquisitions of equipment and other fixed assets for use in our current and future manufacturing and research and development facilities;
the integration of our recent strategic acquisitions and investments;acquisitions; and
potential strategic acquisitions and investments.
In December 2014, we issued Convertible Senior Notes in the aggregate principal amount of $172.5 million. The Convertible Senior Notes have a coupon rate of 3.25% and are due 2020. The Convertible Senior Notes were not convertibleprincipal balance outstanding as of SeptemberJune 30, 2017.2018 was $58.5 million. For detailed information of the terms of the Convertible Senior Notes, see Note 6 of the Notes to Consolidated Financial Statements in Part I, Item 1 of this Quarterly Report, which is incorporated by reference herein.Report.
As of SeptemberJune 30, 2017,2018, we have $4.7$204.6 million in fair value of deferred and contingent considerations associated with prior acquisitions to be settled in future periods.

In January 2016, our board of directors authorized an amendment to replenish the amount available to repurchase up to an aggregate of $50.0 million in shares of common stock or Convertible Senior Notes under our share repurchase program. Approximately $35.0 million remains under the share repurchase program as of September 30, 2017.

On October 6, 2017, the Company entered into the Credit Agreement, which provided the Company with a $245.0 million Term Loan and a $25.0 million Revolving Credit Facility. The Term Loan and the Revolving Credit Facility will mature on October 6, 2022. On the closing date of the Credit Agreement, the Company borrowed the entire amount of the Term Loan and $10.0 million under the Revolving Credit Facility. The Company used the proceeds of the Term Loan along with its cash on hand, to pay (i) the consideration for the Triage Business and (ii) the fees and expenses incurred in connection with the acquisition of the Triage Businessand BNP Businesses. During the six months ended June 30, 2018, the Company paid down the Term Loan balance by $161.8 million and the BNP business.remaining balance as of June 30, 2018 was $83.2 million. Also during the six months ended June 30, 2018, the Company repaid the entire outstanding $10.0 million balance on its Revolving Credit Facility, restoring availability under the Revolving Credit Facility to $25.0 million.
We expect our revenue and operating expenses will significantly impact our cash management decisions. Our future capital requirements and the adequacy of our available funds to service our long-term debt and to fund working capital expenditures and business development efforts will depend on many factors, including:
our ability to successfully integrate our recently acquired businesses and realize revenue growth from our new technologies and create innovative products in our markets;
our outstanding debt and covenant restrictions;
leveraging our operating expenses to realize operating profits as we grow revenue;
competing technological and market developments; and
the need to enter into collaborations with other companies or acquire other companies or technologies to enhance or complement our product and service offerings.

Cash Flow Summary
 Nine months ended September 30,
 2017 2016
Net cash provided by (used for) operating activities:$16,484
 $(4,806)
Net cash used for investing activities:(27,155) (12,921)
Net cash provided by (used for) financing activities:14,137
 (20,374)
Effect of exchange rates on cash20
 (7)
Net increase (decrease) in cash and cash equivalents$3,486
 $(38,108)
 Six months ended June 30,
 2018 2017
Net cash provided by operating activities:$86,462
 $24,007
Net cash provided by (used for) investing activities:133,067
 (22,725)
Net cash (used for) provided by financing activities:(216,950) 4,247
Effect of exchange rates on cash10
 11
Net increase in cash and cash equivalents$2,589
 $5,540
Cash provided by operating activities was $16.5of $86.5 million during the ninesix months ended SeptemberJune 30, 2017. The add back2018 reflects net income of $30.9 million and non-cash itemsadjustments of $49.5 million primarily associated with depreciation, amortization, loss on extinguishment of debt, amortization of inventory step-up to fair value, accretion of interest on deferred consideration and stock-based compensation contributed $27.9 million to operating cash flows duringcompensation. In addition, the nine months ended September 30, 2017. Offsetting this were a net loss of $3.1 million andcompany realized a net working capital usecontribution of $8.4 million.$6.7 million, primarily related to a decrease in accounts receivable. For the ninesix months ended SeptemberJune 30, 2016,2017, cash usedprovided by operating activities was $4.8 million. The major contributors to the use of cash during the nine months ended September 30, 2016 were a$24.0 million reflected net loss $11.9 million, a change in deferred tax assets and liabilitiesincome of $7.4$2.4 million and a net working capital usenon-cash adjustments of $9.7 million. Offsetting this use of cash was the add back of non-cash items of $27.7$18.1 million primarily related to depreciation, amortization and stock basedstock-based compensation. Additionally, a net working capital contribution of $2.2 million drove a portion of the increase.
Our investing activities used $27.2provided $133.1 million during the ninesix months ended SeptemberJune 30, 2018 primarily due to the sale of the Summers Ridge property for approximately $146.6 million. Additionally, we used $13.6 million to acquire production equipment, building improvements and Sofia and Solana instruments available for lease. Our investing activities used $22.7 million during the six months ended June 30, 2017, primarily for the acquisition of the InflammaDry and AdenoPlus diagnostic businesses from RPS as more fully described in Note 11 in the Notes to the Consolidated Financial Statements for approximately $13.7$14.0 million. Additionally, we used $12.8$8.1 million on production equipment, building improvements, Sofia and Solana instruments available for lease and intangible assets. Our investing activities used $12.9 million during the nine months ended September 30, 2016, with $5.1 million of net cash used for the acquisition of Immutopics, Inc. In addition, we used cash for investing activities associated with the acquisition of production equipment, building improvements and Sofia and Solana instruments available for lease.
We are currently planning approximately $5.0$21.0 million in capital expenditures for the remainder of 2017.2018. The primary purpose for our capital expenditures is to acquire manufacturing and scientific equipment, to purchase or develop information technology, to acquire Sofia and Solana instruments and to implement facility improvements. We plan to fund these capital expenditures with the cash on our balance sheet.
Cash used by financing activities was $217.0 million during the six months ended June 30, 2018 and was primarily related to payments on the Term Loan of $161.8 million, payments on the Revolving Credit Facility of $10.0 million, payments on deferred consideration of $46.0 million, repurchases of common stock of $3.6 million, $2.0 million of transaction costs related to the exchange of convertible notes for common stock and payments on acquisition contingent consideration of $3.0 million, partially offset by proceeds from issuance of stock of $9.5 million. Cash provided by financing activities was $14.1$4.2 million during the ninesix months ended SeptemberJune 30, 2017, and was primarily related to proceeds from the issuance of common stock of $15.2 million,$5.3 million. This amount was partially offset by repurchases of common stock of $0.5 million and payments on acquisition-relatedacquisition related contingencies of $0.5 million. Cash used by financing activities was $20.4 million during the nine months ended September 30, 2016, of which $20.1 million was used for repurchases of common stock primarily related to our share repurchase program, and $4.5 million was used for the repurchase of Convertible Senior Notes. These amounts were partially offset by proceeds from the issuance of common stock of $4.8 million. 

Seasonality
Sales of our infectious diseaseinfluenza products are subject to, and significantly affected by, the seasonal demands of the cold and flu seasons, prevalent during the fall and winter. As a result of these seasonal demands, we typically experience lower sales volume in the second and third quarters of the calendar year, and typically have higher sales in the first and fourth quarters of the calendar year. Historically, sales of our infectious diseaseinfluenza products have varied from year to year based, in large part, on the severity, length and timing of the onset of the cold and flu seasons.season.
Off-Balance Sheet Arrangements
At SeptemberJune 30, 20172018 and December 31, 2016,2017, we did not have any relationships with unconsolidated entities or financial partners, such as entities often referred to as structured finance or special purpose entities, which would have been established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. As such, we are not materially exposed to any financing, liquidity, market or credit risk that could arise if we had engaged in such relationships.

Recent Accounting Pronouncements
Information about recently adopted and proposed accounting pronouncements is included in Note 1 of the Notes to Consolidated Financial Statements in Part I, Item 1 of this Quarterly Report under the heading “Recent Accounting Pronouncements” and is incorporated herein by reference herein.reference.
Critical Accounting Policies and Estimates
Our discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the U.S. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosuredisclosures of contingent assets and liabilities. On an on-going basis, management evaluates its estimates, including those related to customer programs and incentives, bad debts, inventories,stock-based compensation, goodwill and intangible assets, business combinations, income taxes, stock-based compensation, contingencies and litigation.convertible debt. We base our estimates on historical experience and on various other assumptions that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.
A comprehensive discussion of our critical accounting policies and management estimates is included in Management’s Discussion and Analysis of Financial Condition and Results of Operations in our Annual Report on Form 10-K for the year ended December 31, 2016.2017. Other than the adoption of ASU 2014-09, Revenue from Contracts with Customers (Topic 606) as described in Note 1 to the Consolidated Financial Statements in this Quarterly Report, there were no material changes to our critical accounting policies and estimates during the six months ended June 30, 2018.
ITEM 3.    Quantitative and Qualitative Disclosures About Market Risk
Interest Rate Risk
We are not subject to interest rate risk on our Convertible Senior Notes as the notes have a fixed interest rate.rate of 3.25%. For fixed rate debt, changes in interest rates will generally affect the fair value of the debt instrument, but not our earnings or cash flows. Under our current policies, we do not use interest rate derivative instruments to manage our exposure to changes in interest rates.
Our Senior Credit Facility debt is subject to interest rate risk as a portion of the interest rate fluctuates based on the LIBOR. We had $83.2 million outstanding under our Senior Credit Facility at June 30, 2018. The weighted average interest rate on these borrowings is 4.84% as of June 30, 2018. A hypothetical 100 basis point adverse move in interest rates along the entire interest rate yield curve would increase our annual interest expense by approximately $0.8 million. Based on our market risk sensitive instruments outstanding at June 30, 2018, we have determined that there was no material market risk exposure from such instruments to our consolidated financial position, results of operations or cash flows as of such date.
Our current investment policy with respect to our cash and cash equivalents focuses on maintaining acceptable levels of interest rate risk and liquidity. Although we periodically evaluate our placement of investments, as of SeptemberJune 30, 2017,2018, we did not have any cash and cash equivalents placed in funds held in government money market accounts and commercial paper.
Foreign Currency Exchange Risk
Sales to customers outside the U.S. represented $84.6 million (31%) of total revenue for the six months ended June 30, 2018, and accounts receivable due from foreign customers was $18.9 million as of June 30, 2018. We recognized $0.4 million in foreign exchange loss for the six months ended June 30, 2018 and an immaterial foreign exchange loss for the six months ended June 30, 2017. The majority of our international sales are negotiated for and paid in U.S. dollars. Nonetheless, these sales are subject toforeign currency, risks, since changes in the values of foreign currencies relative to the value of the U.S. dollar can render our products comparatively more expensive. These exchange rate fluctuations could negatively impact international sales of our products, as could changes in the general economic conditions in those markets. Continued changewhich involves currency risks. Change in the values of the Euro, the Chinese Renminbi, the Japanese Yen and other foreign currencies could result in currency gains and losses and could have an impact on our business, financial condition and results of operations. We do not currently hedge against exchange rate fluctuations, which means that we are fully exposed to exchange rate changes. In

addition, we have certain agreements whereby we share the foreign currency exchange fluctuation risk. We may, in the future, enter into similar such arrangements.

ITEM 4.    Controls and Procedures
Evaluation of disclosure controls and procedures: We have performed an evaluation under the supervision and with the participation of our management, including our Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”), of the effectiveness of our disclosure controls and procedures, as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934 (the “Exchange Act”). Based on that evaluation, our CEO and CFO concluded that our disclosure controls and procedures were effective as of SeptemberJune 30, 20172018 at a reasonable assurance level to ensure that information required to be disclosed by us in the reports filed or submitted by us under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms.
Changes in internal control over financial reporting: There was no change in our internal control over financial reporting during the quarter ended SeptemberJune 30, 20172018 that materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.
PART II OTHER INFORMATION
ITEM 1.    Legal Proceedings
The information set forth in the section entitled “Legal”“Litigation and Other Legal Proceedings” under Note 9 of the Notes to the Consolidated Financial Statements, included in Part I, Item I of this Quarterly Report, is incorporated herein by reference.
ITEM 1A.    Risk Factors
Except as described below, thereThere has been no material change in our risk factors as previously disclosed in our Quarterly Reports on Form 10-Q for the periods ended September 30, 2017 and June 30, 2017 and our Annual Report on Form 10-K for the year ended December 31, 2016.2017. For a detailed description of our risk factors, refer to Part II, Item 1A, “Risk Factors,” of our Quarterly Reports on Form 10-Q for the periods ended September 30, 2017 and June 30, 2017 and Part I, Item 1A, “Risk Factors,”Factors” of our Annual Report on Form 10-K for the year ended December 31, 2016.2017. 
Our acquisition of Alere’s Triage® and BNP businesses may present certain risks to our business and operations.
On On October 6, 2017, we acquired the Triage Business and the BNP Business from Alere, Inc. The acquisition of these businesses, and the transition and integration process related thereto, present certain risks to our business and operations, including, among other things, risks that:
we may be unable to successfully transition and integrate the businesses, and we may experience business interruptions during transition and integration;
we may not realize the anticipated benefits of the acquisitions, including those anticipated to arise from reducing costs, making product and process improvements and developing new products;
we may lose management personnel and other key employees and be unable to attract and retain such personnel and employees;
management's attention and our other  resources may be focused on integration activities instead of on day-to-day management activities, including pursuing other beneficial opportunities;
we may incur substantial unexpected integration or transition related costs;
the deferred consideration payable to Alere for the BNP Business will be payable even if BNP sales are significantly reduced, or even terminate, whether as a result of the introduction of a competing product or otherwise, and such payment obligations may significantly exceed the revenues from such business;
we may not be able to successfully or efficiently manage our foreign expansion, and the acquired businesses will increase our exposure and risks related to foreign markets;
we may be subject to claims, litigation, other legal proceedings and liabilities and damages in connection with the businesses and assets acquired in the acquisitions, some of which may not be covered in full, if at all, by the indemnification provisions provided for in the acquisition agreements, and even if indemnified, may be disruptive to our business;

we may not be able to receive required regulatory approvals or clearances relating to the acquired businesses, the acquired products, or may lose previously received regulatory approvals or clearances;
in certain international markets, the marketing authorizations to sell the acquired products will continue to be held by Alere post-closing until the authorizations can be transferred to us through the applicable regulatory process, and such deferred closings have additional risks, including:
we may not timely receive such authorizations, if at all, or may encounter unexpected difficulties and costs in receiving the authorizations;
we may have less control over the acquired businesses until the deferred closings;
completion of the acquisitions may trigger assignment or other provisions in certain commercial contracts to which Alere was a party, such that counterparties may potentially have the right to terminate the contracts; and
launching branding or rebranding initiatives may involve substantial costs and may not be favorably received by customers.
Alere may fail to perform under various transition agreements that were executed as part of our acquisition of the Triage Business and the BNP Business and we may fail to have necessary systems and services in place when certain of the transition agreements expire.
In connection with the acquisition of the Triage Business and the BNP Business, we entered into a number of agreements with Alere, including transition services agreements and a manufacturing and supply agreement. Certain of these agreements will provide for the performance of services by each company for the benefit of the other for a period of time after the closing of the acquisitions of the Triage Business and the BNP Business. If Alere is unable or unwilling to satisfy its payment or performance obligations under these agreements, we could incur operational difficulties or losses which could have a material adverse effect on our profitability and business. In addition, if the costs that we must pay for the services under these agreements significantly increase this could affect our profitability. Moreover, if we do not have our own systems and services in place, or if we do not have agreements in place with other providers of these services when the term of a particular transition service terminates (whether at the end of the term or as a result of an early termination), we may not be able to operate our business effectively, and the cost of such systems and services may be greater than what is provided under the transition services.
As we build our information technology infrastructure and transition the Triage Business and BNP Business to the Company’s own systems, we could incur substantial additional costs and experience temporary business interruptions.
We are installing and implementing information technology infrastructure to support critical business functions relating to the Triage Business and BNP Business, including accounting and reporting, customer service, inventory control and distribution, billing and receivables collection, as well as order entry, warehousing, and other administrative services. Under the transition services agreements with Alere, Alere is required to provide services both inside and outside the United States, including back office services, for up to two years following the closings of the acquisitions of the Triage Business and BNP Business. The services provided include information technology, billing and receivables collection, as well as order entry, warehousing, and certain other administrative services. These transition services agreements allow the Company to operate the Triage Business and BNP Business prior to establishing its back office infrastructure and information technology systems to accommodate the Triage Business and BNP Business. The Company’s failure to avoid operational interruptions as it implements the new systems and information technology could disrupt its integration of the Triage Business and the BNP Business and have a material adverse effect on its profitability.
Risk Factors Related to our Indebtedness
Our substantial debt could materially adversely affect our financial condition and results of operations.
On October 6, 2017, we entered into a $270.0 million five-year senior secured credit facility (the “Senior Credit Facility”), consisting of a $245.0 million Term Loan, all of which was borrowed at the closing, and a $25.0 million Revolving Credit Facility, $10.0 million of which was borrowed at the closing. The Senior Credit Facility includes an accordion feature that allows the borrowings under the Senior Credit Facility to be increased by $50 million upon the satisfaction of certain conditions. See Note 6 of the Notes to the Consolidated Financial Statements for a more detailed description of the Credit Agreement. We also have outstanding indebtedness under our Convertible Senior Notes described in Note 6 of the Notes to the Consolidated Financial Statements, and may incur other indebtedness from time to time.
The degree to which we are leveraged could have important consequences to our potential and current investors, including:
our ability to obtain additional financing in the future for working capital, capital expenditures, acquisitions and general corporate purposes may be impaired;

a significant portion of our cash flow from operating activities must be dedicated to the payment of our debt, which reduces the funds available to us for our operations and may limit our ability to engage in acts that may be in our long-term best interests;
some of our debt is and will continue to be at variable rates of interest, which may result in higher interest expense in the event of increases in market interest rates;
our debt agreements may contain, and any agreements to refinance our debt likely will contain, financial and restrictive covenants, and our failure to comply with them may result in an event of default which if not cured or waived, could have a material adverse effect on us;
our level of indebtedness will increase our vulnerability to, and reduce our flexibility to respond to, general economic downturns and adverse industry and business conditions;
as our long-term debt ages, we may need to renegotiate or repay such debt or seek additional financing;
to the extent the debt we incur requires collateral to secure such indebtedness, our assets could be at risk and our flexibility related to such assets could be limited;
our debt service obligations could limit our flexibility in planning for, or reacting to, changes in our business and industry; and
our level of indebtedness may place us at a competitive disadvantage relative to less leveraged competitors.
We may not be able to generate sufficient cash flow to meet our debt service obligations, and any inability to repay our debt when due would have a material adverse effect on our business, financial condition and results of operations.
Our ability to generate sufficient cash flow from operating activities to make scheduled or other required payments on our debt obligations and maintain a desired level of capital expenditures depends on our future performance, which is subject to economic, financial, competitive and other factors, many of which are beyond our control. If we are unable to generate such cash flow, we may be required to adopt one or more alternatives, such as selling assets, restructuring debt or obtaining additional equity capital on terms that may be onerous or highly dilutive. Our ability to undertake these activities may also be restricted by the terms of our various debt instruments then in effect. In addition, our ability to refinance our indebtedness or issue additional equity capital will depend on the capital markets and our financial condition at such time. We may not be able to engage in any of these activities or engage in these activities on desirable terms, which could result in a default on our debt obligations. Any such default on our debt obligations could materially adversely affect our business, financial condition and results of operations.
The Senior Credit Facility is secured by substantially all of our assets and those of our subsidiary guarantors.
Borrowings under the Senior Credit Facility are guaranteed by certain of our material domestic subsidiaries and are secured by liens on substantially all of our assets and those of the guarantor subsidiaries, other than real property and certain other types of excluded assets. Under the Senior Credit Facility, the Company is required to use commercially reasonable efforts to effect a sale leaseback transaction with respect to its Summers Ridge property (the “Summers Ridge Sale Leaseback”). If we cannot effect such Summers Ridge Sale Leaseback within 180 days of the closing of the Senior Credit Facility, we must grant a security interest in that property as additional collateral for the Senior Credit Facility. If we default under our secured indebtedness, including our Senior Credit Facility, the holders of such debt could proceed against the collateral securing that indebtedness, which could materially adversely affect our business, financial condition and results of operations.
The Senior Credit Facility contains certain prepayment requirements that will limit our ability to use our cash flow from operations and the proceeds of certain assets sales or other monies for other corporate purposes.
Subject to certain limitations, the Company is required to prepay loans outstanding under the Senior Credit Facility out of its excess cash flow and out of the net cash proceeds of property dispositions and certain other amounts received not in the ordinary course of business, such as certain insurance proceeds and condemnation awards. For example, the Company is required to use a substantial portion of the proceeds of the Summers Ridge Sale Leaseback to repay amounts under the Senior Credit Facility. These requirements to prepay the Senior Credit Facility with excess monies will limit the flexibility of the Company to utilize those monies for other purposes that may be in the best interests of the Company.
Borrowings under the Senior Credit Facility will be accelerated if certain conditions are not met prior to the maturity of the Convertible Senior Notes.
Although the regular maturity date for the Senior Credit Facility is October 6, 2022, the maturity will be accelerated and all borrowings under the Senior Credit Facility will become due and payable on the date that is 91 days prior to the maturity of the Convertible Senior Notes, if any of the Convertible Senior Notes remain outstanding on that date and certain liquidity and

refinancing conditions are not satisfied. If the Senior Credit Facility is accelerated under this provision, the Company may not be able to refinance the facility on acceptable terms, and could be forced to sell assets or issue stock in order to obtain money to repay the Senior Credit Facility. Any failure to repay the Senior Credit Facility when due would have a material adverse effect on the Company and its liquidity and financial position.
The agreements relating to our indebtedness contain terms that restrict our ability to operate our business, and as a result may materially adversely affect our results of operations.
Our Senior Credit Facility contains, and other of our debt agreements may include from time to time, a number of restrictive covenants that impose significant operating and financial restrictions on us and our subsidiaries. Such restrictive covenants significantly limit our ability to:
incur additional debt, including guarantees;
allow other liens on our property;
make certain investments and acquisitions;
sell or otherwise dispose of assets;
engage in mergers or consolidations or allow a change in control to occur;
make distributions to our stockholders;
engage in restructuring activities;
enter into transaction with affiliates;
prepay or amend other indebtedness;
engage in certain sale and leaseback transactions; and
issue or repurchase stock or other securities.
Such agreements also require us to satisfy other requirements, including maintaining certain financial ratios. Our ability to meet these requirements can be affected by events beyond our control and we may be unable to meet them. To the extent we fail to meet any such requirements and are in default under our debt obligations, our financial condition may be materially adversely affected. These restrictions may limit our ability to engage in activities that could otherwise benefit us. To the extent that we are unable to engage in activities that support the growth, profitability and competitiveness of our business, our results of operations may be materially adversely affected.
An event of default under any agreement relating to our outstanding indebtedness or other event that could require outstanding debt to be prepaid or purchased by the Company could cross default other indebtedness, which could have a material adverse effect on our business, financial condition and results of operations.
If there were an event of default under any of the agreements relating to our outstanding indebtedness, the holders of the defaulted debt could cause all amounts outstanding with respect to that debt to be due and payable immediately, which default or acceleration of debt could cross default other indebtedness. Our Senior Credit Facility could also be cross defaulted as a result of other events that could require outstanding indebtedness to be prepaid or purchased by the Company. Any cross default with respect to any of our indebtedness would put immediate pressure on our liquidity and financial condition and would amplify the risks described above with regards to being unable to repay our indebtedness when due and payable. We cannot assure you that our assets or cash flow would be sufficient to fully repay borrowings under our outstanding debt instruments if accelerated upon an event of default, and, as described above, any inability to repay our debt when due would have a material adverse effect on our business, financial condition and results of operations.
If interest rates increase, our debt service obligations under our variable rate indebtedness could increase significantly, which would have a material adverse effect on our results of operations.
Borrowings under certain of our facilities from time to time, including under our Senior Credit Facility, are at variable rates of interest and as a result expose us to interest rate risk. If interest rates were to increase, our debt service obligations on the variable rate indebtedness would increase even though the amount borrowed remained the same, and our net income and cash flows, including cash available for servicing our indebtedness, will correspondingly decrease. To the extent the risk materializes and is not fully mitigated, the resulting increase in interest expense could have a material adverse effect on our results of operations.

ITEM 2.    Unregistered Sales of Equity Securities and Use of Proceeds
Issuer Purchases of Equity Securities
The table below sets forth information regarding repurchases of our common stock by us during the three months ended SeptemberJune 30, 2017.2018.
Period 
Total number
of shares
purchased (1)
 
Average
price paid
per share
 
Total number
of shares purchased
as part of publicly
announced plans or programs
 
Approximate dollar
value of shares that
may yet be
purchased
under the plans  or programs (2)
July 3, 2017 - July 30, 2017 
 $
 
 $35,006,981
July 31, 2017 - August 27, 2017 1,500
 35.04
 
 35,006,981
August 28, 2017 - October 1, 2017 
 
 
 35,006,981
Total 1,500
 $35.04
 
 $35,006,981
Period 
Total number
of shares
purchased (1)
 
Average
price paid
per share
 
Total number
of shares purchased
as part of publicly
announced plans or programs
 
Approximate dollar
value of shares that
may yet be
purchased
under the plans  or programs (2)
April 2 2018 - April 29, 2018 
 $
 
 $
April 30, 2018 - May 27, 2018 3,783
 61.20
 
 
May 28, 2018 - July 1, 2018 2,233
 64.52
 
 
Total 6,016
 $62.43
 
 $
(1) We withheld 1,5006,016 shares of common stock from employees in connection with payment of minimum tax withholding obligations relating to the lapse of restrictions on certain RSUs during the three months ended SeptemberJune 30, 2017.2018.
(2) OnOur prior share repurchase program expired on January 25, 2016, we announced that the Company's Board of Directors authorized an amendment to the Company's previously announced stock repurchase program to (i) replenish the amount available for repurchase under the program back to the previously authorized repurchase amount of $50.0 million, (ii) approve the addition of repurchases of the Company's Convertible Senior Notes under the program2018 and (iii) extend the expiration date of the program to January 25, 2018. Under the amended program, the Company may repurchase, in the aggregate, up to $50.0 million in shares of its common stock and/or its Convertible Senior Notes. The amounts provided in this column give effect to the repurchase of our Convertible Senior Notes that are in addition to the repurchases of our common stock shown in this table.was not renewed.
ITEM 3.    Defaults Upon Senior Securities
None.
ITEM 4.    Mine Safety Disclosures
Not applicable.

ITEM 5.    Other Information
None.

ITEM 6.    Exhibits
   
3.1 
3.2 
3.3 
4.1 
10.1 
10.210.2+ 
10.3
31.1* 
31.2* 
32.1** 
101.INS* XBRL Instance Document
101.SCH* XBRL Taxonomy Extension Schema Document
101.CAL* XBRL Taxonomy Calculation Linkbase Document
101.DEF* XBRL Taxonomy Extension Definition Linkbase Document
101.LAB* XBRL Taxonomy Label Linkbase Document
101.PRE* XBRL Taxonomy Presentation Linkbase Document
___________________________
* Filed herewith.
** Furnished herewith.
+    Indicates a management plan or compensatory arrangement.


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.
 
  
Date: November 2, 2017August 8, 2018QUIDEL CORPORATION
  
 /s/ DOUGLAS C. BRYANT
 Douglas C. Bryant
 
President and Chief Executive Officer
(Principal Executive Officer)
  
 /s/ RANDALL J. STEWARD
 Randall J. Steward
 
Chief Financial Officer
(Principal Financial Officer)

Exhibit Index
 
Exhibit
Number
  
3.1 
3.2 
3.3 
4.1 
10.1 
10.210.2+ 
10.3
31.1* 
31.2* 
32.1** 
101.INS* XBRL Instance Document
101.SCH* XBRL Taxonomy Extension Schema Document
101.CAL* XBRL Taxonomy Calculation Linkbase Document
101.DEF* XBRL Taxonomy Extension Definition Linkbase Document
101.LAB* XBRL Taxonomy Label Linkbase Document
101.PRE* XBRL Taxonomy Presentation Linkbase Document
___________________________
* Filed herewith.
** Furnished herewith.
+    Indicates a management plan or compensatory arrangement.





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