10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

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

FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2018

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 001-36509

AMPHASTAR PHARMACEUTICALS, INC.

(Exact name of Registrant as specified in its charter)

Delaware	33-0702205
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

11570 6th Street

Rancho Cucamonga, CA 91730

(Address of principal executive offices, including zip code)

(909) 980-9484

(Registrant’s telephone number, including area code)

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  ☒     No  ◻     



Indicate by check mark whether the Registrant (1) has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the Registrant was required to submit and post such files).    Yes  ☒     No  ◻



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

Large accelerated filer	◻	Accelerated filer	☒
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 Exchange Act. ☒

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

The number of shares outstanding of the Registrant’s only class of common stock as of May 3, 2018 was 46,614,060.

AMPHASTAR PHARMACEUTICALS, INC.

TABLE OF CONTENTS

FORM 10-Q FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2018

Part I. FINANCIAL INFORMATION
	PAGE
Item 1. Financial Statements (unaudited)
Condensed Consolidated Balance Sheets as of March 31, 2018 and December 31, 2017	1
Condensed Consolidated Statements of Operations for the Three Months Ended March 31, 2018 and 2017	2
Consolidated Statements of Comprehensive Income (Loss) for the Three Months Ended March 31, 2018 and 2017	3
Condensed Consolidated Statements of Cash Flows for the Three Months Ended March 31, 2018 and 2017	4
Notes to Condensed Consolidated Financial Statements	5
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	30
Item 3. Quantitative and Qualitative Disclosure about Market Risk	37
Item 4. Controls and Procedures	38
Part II. OTHER INFORMATION
Item 1. Legal Proceedings	39
Item 1A. Risk Factors	39
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	40
Item 3. Defaults Upon Senior Securities	40
Item 4. Mine Safety Disclosures	40
Item 5. Other Information	40
Item 6. Exhibits	41
Signatures	42

SPECIAL NOTE ABOUT FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q, or Quarterly Report, contains “forward-looking statements” that involve substantial risks and uncertainties. In some cases, you can identify forward-looking statements by the following words: “may,” “might,” “will,” “could,” “would,” “should,” “expect,” “intend,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “ongoing” or the negative of these terms or other comparable terminology, although not all forward-looking statements contain these identifying words. Forward-looking statements relate to future events or future financial performance or condition and involve known and unknown risks, uncertainties and other factors that could cause actual results, levels of activity, performance or achievement to differ materially from those expressed or implied by the forward-looking statements. These forward-looking statements include, but are not limited to, statements about:

· our expectations regarding the sales and marketing of our products;

· our expectations regarding our manufacturing and production and the integrity of our supply chain for our products, including the risks associated with our single source suppliers;

· the timing and likelihood of FDA approvals and regulatory actions on our product candidates, manufacturing activities and product marketing activities;

· our ability to advance product candidates in our platforms into successful and completed clinical trials and our subsequent ability to successfully commercialize our product candidates;

· our ability to compete in the development and marketing of our products and product candidates;

· the potential for adverse application of environmental, health and safety and other laws and regulations on our operations;

· our expectations for market acceptance of our new products and proprietary drug delivery technologies, as well as those of our API customers;

· the potential for our marketed products to be withdrawn due to patient adverse events or deaths, or if we fail to secure FDA approval for products subject to the Prescription Drug Wrap-Up program;

· our expectations in obtaining insurance coverage and adequate reimbursement for our products from third-party payers;

· the amount of price concessions or exclusion of suppliers adversely affecting our business;

· our ability to establish and maintain intellectual property protection for our products and our ability to successfully defend our intellectual property in cases of alleged infringement;

· the implementation of our business strategies, product development strategies and technology utilization;

· the potential for exposure to product liability claims;

· future acquisitions, divestitures or investments, including the anticipated benefits of such acquisitions, divestitures or investments;

· our ability to expand internationally;

· economic and industry trends and trend analysis;

· our ability to remain in compliance with laws and regulations that currently apply or become applicable to our business both in the United States and internationally the impact of global and domestic tax reform, including the Tax Cuts and Jobs Act of 2017;

· the timing for completion of construction and validation at our IMS facility; and

· our financial performance expectations, including our expectations regarding our backlog, revenue, cost of revenue, gross profit or gross margin, operating expenses, including changes in research and development, sales and marketing and general and administrative expenses, and our ability to achieve and maintain future profitability.

You should read this Quarterly Report and the documents that we reference elsewhere in this Quarterly Report completely and with the understanding that our actual results may differ materially from what we expect as expressed or implied by our forward-looking statements. In light of the significant risks and uncertainties to which our forward-looking statements are subject, you should not place undue reliance on or regard these statements as a representation or warranty by us or any other person that we will achieve our objectives and plans in any specified timeframe, or at all. We discuss many of these risks and uncertainties in greater detail in this Quarterly Report and in our Annual Report on Form 10-K for the year ended December 31, 2017, particularly in Item 1A. “Risk Factors.” These forward-looking statements represent our estimates and assumptions only as of the date of this Quarterly Report regardless of the time of delivery of this Quarterly Report, and such information may be limited or incomplete, and our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all potentially available relevant information. Except as required by law, we undertake no obligation to update or revise publicly any forward-looking statements, whether as a result of new information, future events or otherwise after the date of this Quarterly Report.

Unless expressly indicated or the context requires otherwise, references in this Quarterly Report to “Amphastar,” “the Company,” “we,” “our,” and “us” refer to Amphastar Pharmaceuticals, Inc. and our subsidiaries.

PART I – FINANCIAL INFORMATION

ITEM 1.  FINANCIAL STATEMENTS

AMPHASTAR PHARMACEUTICALS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except share data)

	March 31,		December 31,
	2018		2017
	(unaudited)
ASSETS
Current assets:
Cash and cash equivalents	$	54,547	$	65,594
Short-term investments		2,826		2,635
Restricted cash and short-term investments		4,155		4,155
Accounts receivable, net		31,883		35,996
Inventories		62,780		63,609
Income tax refunds and deposits		12,194		6,036
Prepaid expenses and other assets		5,661		9,753
Total current assets		174,046		187,778
Property, plant, and equipment, net		191,915		185,339
Goodwill and intangible assets, net		44,850		45,140
Other assets		10,714		8,663
Deferred tax assets		28,257		27,745
Total assets	$	449,782	$	454,665
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable and accrued liabilities	$	58,498	$	57,555
Income taxes payable		7,983		3,325
Current portion of long-term debt and capital leases		6,061		6,312
Total current liabilities		72,542		67,192
Long-term reserve for income tax liabilities		879		879
Long-term debt and capital leases, net of current portion		39,706		40,844
Deferred tax liabilities		1,425		1,361
Other long-term liabilities		8,126		7,060
Total liabilities		122,678		117,336
Commitments and contingencies:
Stockholders’ equity:
Preferred stock: par value $0.0001; 20,000,000 shares authorized; no shares issued and outstanding		—		—
Common stock: par value $0.0001; 300,000,000 shares authorized; 50,471,687 and 46,656,793 shares issued and outstanding as of March 31, 2018 and 50,039,212 and 46,623,581 shares issued and outstanding as of December 31, 2017, respectively		5		5
Additional paid-in capital		316,665		313,891
Retained earnings		69,570		76,235
Accumulated other comprehensive loss		(910)		(2,100)
Treasury stock		(58,226)		(50,702)
Total stockholders’ equity		327,104		337,329
Total liabilities and stockholders’ equity	$	449,782	$	454,665

See Accompanying Notes to Condensed Consolidated Financial Statements.

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AMPHASTAR PHARMACEUTICALS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited; in thousands, except per share data)

	Three Months Ended
	March 31,
	2018		2017
Net revenues	$	58,393	$	56,670
Cost of revenues		41,332		33,842
Gross profit		17,061		22,828
Operating (income) expenses:
Selling, distribution, and marketing		1,721		1,479
General and administrative		10,998		11,338
Research and development		14,260		11,250
Gain on sale of intangible assets		—		(2,643)
Total operating expenses		26,979		21,424
Income (loss) from operations		(9,918)		1,404
Non-operating income (expenses):
Interest income		124		91
Interest expense		(18)		(191)
Other income, net		782		200
Total non-operating income, net		888		100
Income (loss) before income taxes		(9,030)		1,504
Income tax expense (benefit)		(1,784)		611
Net income (loss)	$	(7,246)	$	893
Net income (loss) per share:
Basic	$	(0.16)	$	0.02
Diluted	$	(0.16)	$	0.02
Weighted-average shares used to compute net income (loss) per share:
Basic		46,514		46,069
Diluted		46,514		48,057

See Accompanying Notes to Condensed Consolidated Financial Statements.

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AMPHASTAR PHARMACEUTICALS, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(Unaudited; in thousands)

	Three Months Ended
	March 31,
	2018		2017
Net income (loss)	$	(7,246)	$	893
Other comprehensive income, net of income taxes
Foreign currency translation adjustment		1,190		466
Total other comprehensive income		1,190		466
Total comprehensive income (loss)	$	(6,056)	$	1,359

See Accompanying Notes to Condensed Consolidated Financial Statements.

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AMPHASTAR PHARMACEUTICALS, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited; in thousands)

	Three Months Ended
	March 31,
	2018		2017
Cash Flows From Operating Activities:
Net income (loss)	$	(7,246)	$	893
Reconciliation to net cash provided by operating activities:
Loss (gain) on disposal and impairment of long-lived assets		598		(2,643)
Depreciation of property, plant, and equipment		3,201		3,100
Amortization of product rights, trademarks, and patents		729		721
Share-based compensation expense		4,666		4,451
Changes in operating assets and liabilities:
Accounts receivable, net		4,635		920
Inventories		1,441		1,891
Prepaid expenses and other assets		(761)		344
Income tax refund, deposits, and payable		(1,761)		394
Accounts payable and accrued liabilities		2,858		12,327
Net cash provided by operating activities		8,360		22,398
Cash Flows From Investing Activities:
Purchases and construction of property, plant, and equipment		(12,340)		(7,267)
Sale of intangible assets		4,400		1,000
Purchase of short-term investments		(201)		(1,564)
Maturity of short-term investments		—		1,345
Payment of deposits and other assets		(597)		521
Net cash used in investing activities		(8,738)		(5,965)
Cash Flows From Financing Activities:
Proceeds from equity plans, net of withholding tax payments		(1,793)		(2,173)
Purchase of treasury stock		(7,624)		(8,203)
Principal payments on long-term debt		(1,411)		(1,342)
Net cash used in financing activities		(10,828)		(11,718)
Effect of exchange rate changes on cash		159		(174)
Net increase (decrease) in cash, cash equivalents, and restricted cash		(11,047)		4,541
Cash, cash equivalents, and restricted cash at beginning of period		67,459		72,354
Cash, cash equivalents, and restricted cash at end of period	$	56,412	$	76,895
Supplemental Disclosures of Cash Flow Information:
Interest paid, net of capitalized interest	$	532	$	390
Income taxes paid	$	8	$	440

See Accompanying Notes to Condensed Consolidated Financial Statements.

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note 1.  General

Amphastar Pharmaceuticals, Inc., a California corporation, was incorporated on February 29, 1996 and merged with and into Amphastar Pharmaceuticals, Inc., a Delaware corporation, in July 2004 (together with its subsidiaries, hereinafter referred to as “the Company”). The Company is a specialty pharmaceutical company that primarily develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products, including products with high technical barriers to market entry. Additionally, the Company sells insulin active pharmaceutical ingredient, or API, products.  Most of the Company’s products are used in hospital or urgent care clinical settings and are primarily contracted and distributed through group purchasing organizations and drug wholesalers. The Company’s insulin API products are sold to other pharmaceutical companies for use in their own products and are being used by the Company in the development of injectable finished pharmaceutical products.  The Company’s inhalation products will be primarily distributed through drug retailers if they are approved and brought to market.

The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements of the Company for the year ended December 31, 2017 and the notes thereto as filed with the Securities and Exchange Commission, or SEC, in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with generally accepted accounting principles, or GAAP, have been condensed or omitted from the accompanying condensed consolidated financial statements. The accompanying year-end condensed consolidated balance sheet was derived from the audited financial statements. The accompanying interim financial statements are unaudited, but reflect all adjustments which are, in the opinion of management, necessary for a fair statement of the Company’s consolidated financial position, results of operations, comprehensive income (loss) and cash flows for the periods presented. Unless otherwise noted, all such adjustments are of a normal, recurring nature. The Company’s results of operations, comprehensive income (loss) and cash flows for the interim periods are not necessarily indicative of the results of operations and cash flows that it may achieve in future periods.

Note 2.  Summary of Significant Accounting Policies

Basis of Presentation

The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, and are prepared in accordance with the requirements of the SEC for interim reporting. Effective January 1, 2018, the Company retrospectively adopted Accounting Standard Update, or ASU, No. 2016-15 Classification of Certain Cash Receipts and Cash Payments.  Certain amounts in the prior quarter’s condensed consolidated balance sheet and condensed consolidated statement of cash flows have been reclassified to conform to the current quarter presentation. This reclassification has no impact on net income or cash flows. All significant intercompany activity has been eliminated in the preparation of the condensed consolidated financial statements.In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments (consisting only of normal recurring adjustments) necessary to present fairly the consolidated financial position, results of operations, and cash flows of the Company.

The Company’s subsidiaries include: (1) International Medication Systems, Limited, or IMS, (2) Armstrong Pharmaceuticals, Inc., or Armstrong, (3) Amphastar Nanjing Pharmaceuticals Inc., or ANP, (4) Nanjing Letop Fine Chemistry Co., Ltd., or Letop, (5) Nanjing Hanxin Medical Technology Co., Ltd., or Hanxin, (6) Nanjing Baixin Trading Co., Ltd., or Baixin, (7) Amphastar France Pharmaceuticals, S.A.S., or AFP, (8) Amphastar UK Ltd., or AUK, and (9) International Medication Systems (UK) Limited, or IMS UK.

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Use of Estimates

The preparation of condensed consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates. The principal accounting estimates include determination of allowances for doubtful accounts and discounts, provision for chargebacks and rebates, provision for product returns, adjustment of inventory to their net realizable values, impairment of long-lived and intangible assets and goodwill, self-insured claims, workers’ compensation liabilities, litigation reserves, stock price volatilities for share-based compensation expense, valuation allowances for deferred tax assets, and liabilities for uncertain income tax positions.

Foreign Currency

The functional currency of the Company, its domestic subsidiaries, its Chinese subsidiary, ANP, and its U.K. subsidiary, AUK, is the U.S. dollar, or USD. ANP maintains its books of record in Chinese Yuan. These books are remeasured into the functional currency of USD using the current or historical exchange rates. The resulting currency remeasurement adjustments and other transactional foreign currency exchange gains and losses are reflected in the Company’s statements of operations. 

The Company’s French subsidiary, AFP, maintains its book of record in Euros. Its other Chinese subsidiaries maintain their books of record in Chinese Yuan. Its U.K. subsidiary IMS UK, maintains its book of record in Great Britain Pounds. These local currencies have been determined to be the subsidiaries’ respective functional currencies. These books of record are translated into USD using average exchange rates during the period.  Assets and liabilities are translated at the rate of exchange prevailing on the balance sheet date. Equity is translated at the prevailing rate of exchange at the date of the equity transactions. Translation adjustments are reflected in stockholders’ equity and are included as a component of other accumulated comprehensive income (loss). The unrealized gains or losses of intercompany foreign currency transactions that are of a long-term investment nature are reported in other accumulated comprehensive income (loss). The unrealized gains of intercompany foreign currency transactions that are of a long-term investment nature for the three months ended March 31, 2018 and 2017 were $0.9 million, and a $0.5 million, respectively. 

Additionally, the Company does not undertake hedging transactions to cover its foreign currency exposure.

Comprehensive Income (loss)

For the three months ended March 31, 2018 and 2017, the Company included its foreign currency translation gain or loss as part of its comprehensive income (loss). Income tax expense of $0.3 million was allocated to other comprehensive income (loss) for the three months ended March 31, 2018. There was no material income tax expense (benefit) allocated to other comprehensive income (loss) for the three months ended March 31, 2017.

Restricted Cash and Short-term Investments

Restricted cash and short-term investments are collateral required for the Company to effect a standby letter of credit and to qualify for workers’ compensation self-insurance and are available to meet the Company’s workers’ compensation obligations on a current basis, as needed. As of March 31, 2018 and December 31, 2017, restricted cash and short-term investments include $1.9 million in cash and $2.3 million in certificates of deposit, respectively. The certificates of deposit have original maturities greater than three months and are classified as short-term investments.

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Financial Instruments

The carrying amounts of cash and cash equivalents, short-term investments, restricted cash and short-term investments, accounts receivable, accounts payable, accrued expenses, and short-term borrowings approximate fair value due to the short maturity of these items. The majority of the Company’s long-term obligations consist of variable rate debt, and their carrying value approximates fair value as the stated borrowing rates are comparable to rates currently offered to the Company for instruments with similar maturities. However, the Company has one fixed-rate, long-term mortgage for which the carrying value differs from the fair value and is not remeasured on a recurring basis (see Note 12). The Company at times enters into fixed interest rate swap contracts to exchange the variable interest rates for fixed interest rates without the exchange of the underlying notional debt amounts. Such interest rate swap contracts are recorded at their fair values.

Deferred Income Taxes

The Company utilizes the liability method of accounting for income taxes, under which deferred taxes are determined based on the temporary differences between the financial statements and the tax basis of assets and liabilities using enacted tax rates. A valuation allowance is recorded when it is more likely than not that the deferred tax assets will not be realized. At March 31, 2018, the Company had not completed its accounting for the tax effects of the enactment of the Tax Cuts and Jobs Act of 2017, or the Tax Act.

Business Combinations

If an acquired set of activities and assets is capable of being operated as a business consisting of inputs and processes from the viewpoint of a market participant, the asset acquired and liabilities assumed are a business. Business combinations are accounted for using the acquisition method of accounting, which requires an acquirer to recognize the assets acquired and the liabilities assumed at the acquisition date measured at their fair values as of that date. Fair value determinations are based on discounted cash flow analyses or other valuation techniques. In determining the fair value of the assets acquired and liabilities assumed in a material acquisition, the Company may utilize appraisals from third party valuation firms to determine fair values of some or all of the assets acquired and liabilities assumed, or may complete some or all of the valuations internally. In either case, the Company takes full responsibility for the determination of the fair value of the assets acquired and liabilities assumed. The value of goodwill reflects the excess of the fair value of the consideration conveyed to the seller over the fair value of the net assets received.

Acquisition-related costs that the Company incurs to effect a business combination are expensed in the periods in which the costs are incurred. When the operations of the acquired businesses were not material to the Company's condensed consolidated financial statements, no pro forma presentations were disclosed.

Recent Accounting Pronouncements

In February 2016, the FASB issued ASU No. 2016-02 Leases, that is aimed at making leasing activities more transparent and comparable, and which requires substantially all leases be recognized by lessees on their balance sheets as a right-of-use asset and corresponding lease liability, including leases currently accounted for as operating leases. This guidance will become effective for the Company’s interim and annual reporting periods during the year ending December 31, 2019, and all annual and interim reporting periods thereafter. Early adoption is permitted. The Company is required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements for the reporting periods in which the guidance is adopted. While the Company continues to evaluate the provisions of ASC 842 to determine how it will be affected, the primary effect of adopting the new standard will be to record assets and obligations for current operating leases on its consolidated financial statements. Footnote 16 provides details on the Company’s current operating lease arrangements. The adoption of ASC 842 is not expected to have a material impact on the Company’s results of operations or cash flows.

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

In June 2016, the FASB issued ASU No. 2016-13 Financial Instruments – Credit Losses, which is aimed at providing financial statement users with more useful information about the expected credit losses on financial instruments and other commitments to extend credit. The standard update changes the impairment model for financial assets measured at amortized cost, requiring presentation at the net amount expected to be collected. The measurement of expected credit losses requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. Available-for-sale debt securities with unrealized losses will be recorded through an allowance for credit losses. The guidance is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2020. Early adoption is permitted for interim or annual periods after December 31, 2019. The Company will be required to apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. The Company does not believe the adoption of this accounting guidance will have a material impact on its consolidated financial statements and related disclosures.

In January 2017, the FASB issued ASU No. 2017-04 Simplifying the Test for Goodwill Impairment, which eliminates the requirement to calculate the implied fair value of goodwill. An entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. The update also eliminated the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. An entity is required to disclose the amount of goodwill allocated to each reporting unit with a zero or negative carrying amount of net assets. The guidance is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2020, and applied on a prospective basis. Early adoption is permitted for interim and annual goodwill impairment testing dates after January 1, 2017. The Company currently does not believe that the adoption of this accounting guidance will have a material impact on its consolidated financial statements and related disclosures.

In August 2017, the FASB issued ASU No. 2017-12 Targeted Improvements to Accounting for Hedging Activities, which amends the hedge accounting model in ASC 815 to enable entities to better portray the economics of their risk management activities in the financial statements and enhance the transparency and understandability of hedge results. The amendments also simplify the application of hedge accounting in certain situations. The new guidance is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2019. Early adoption is permitted. The Company does not believe that the adoption of this accounting guidance will have a material impact on its consolidated financial statements and related disclosures.

In February 2018, the FASB issued ASU No. 2018-02 Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which allows entities to reclassify from accumulated other comprehensive income to retained earnings stranded tax effects resulting from the Tax Cuts and Jobs Act of 2017. The guidance is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2019. Early adoption is permitted. The Company does not believe that the adoption of this accounting guidance will have a material impact on its consolidated financial statements and related disclosures.

Note 3.  Revenue Recognition

During the quarter ended March 31, 2018, the Company adopted ASC 606, Revenue from Contracts with Customers, or ASC 606, using the modified retrospective transition method. The adoption of ASC 606 did not have a material impact on the Company’s revenue recognition or on the condensed consolidated financial statements and related disclosures.

Subsequent to the adoption of ASC 606, revenue is recognized at the time that the Company’s customers obtain control of the promised goods. Revenues derived from contract manufacturing services are recognized when third-party products are shipped to customers, after the customer has accepted test samples of the products to be shipped.The results for the reporting period beginning after January 1, 2018, are presented in accordance with the new standard, although comparative information continues to be reported under the accounting standards and policies in effect for those periods.

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

For the accounting policy related to revenue recognition for the years ended prior to and on December 31, 2017, see Note 4, Revenue Recognition, to the consolidated financial statements in our Annual Report on Form 10-K for the year ended December 31, 2017.

The Company only records revenue to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved, by estimating and recording reductions to revenue for discounts, product returns, and pricing adjustments, such as wholesaler chargebacks, in the same period that the related revenue is recorded.

Provision for Chargebacks and Rebates

The provision for chargebacks and rebates is a significant estimate used in the recognition of revenue. Wholesaler chargebacks relate to sales terms under which the Company agrees to reimburse wholesalers for differences between the gross sales prices at which the Company sells its products to wholesalers and the actual prices of such products that wholesalers resell them under the Company’s various contractual arrangements with third parties such as hospitals and group purchasing organizations in the United States. Rebates include primarily amounts paid to retailers, payers, and providers in the United States, including those paid to state Medicaid programs, and are based on contractual arrangements or statutory requirements. The Company estimates chargebacks and rebates using the expected value method at the time of sale to wholesalers based on wholesaler inventory stocking levels, historic chargeback and rebate rates, and current contract pricing.

The provision for chargebacks and rebates is reflected in net revenues. The following table is an analysis of the chargeback and rebate provision:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Beginning balance	$	18,470	$	39,709
Provision for chargebacks and rebates		25,334		58,606
Credits and payments issued to third parties		(28,774)		(76,242)
Ending balance	$	15,030	$	22,073

Changes in the chargeback provision from period to period are primarily dependent on the Company’s sales to its wholesalers, the level of inventory held by wholesalers, and the wholesaler’s customer mix. Changes in the rebate provision from period to period are primarily dependent on retailer’s and other indirect customers’ purchases. The approach that the Company uses to estimate chargebacks has been consistently applied for all periods presented. Variations in estimates have been historically small. The Company continually monitors the provision for chargebacks and rebates and makes adjustments when it believes that the actual chargebacks and rebates may differ from the estimates. The settlement of chargebacks and rebates generally occurs within 30 days to 60 dates after the sale to wholesalers. Accounts receivable and/or accounts payable and accrued liabilities are reduced and/or increased by the chargebacks and rebate amounts depending on whether the Company has the right to offset with the customer. Of the provision for chargebacks and rebates as of March 31, 2018 and December 31, 2017, $5.3 million and $6.8 million were included in accounts receivable, net, on the condensed consolidated balance sheets, respectively. The remaining provision of $9.7 million and $11.7 million were included in accounts payable and accrued liabilities, respectively.

Accrual for Product Returns

The Company offers most customers the right to return qualified excess or expired inventory for partial credit; however, API product sales are generally non-returnable.  The Company’s product returns primarily consist of the returns of expired products from sales made in prior periods. Returned products cannot be resold. At the time product revenue is

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

recognized, the Company records an accrual for product returns estimated using the expected value method. The accrual is based, in part, upon the historical relationship of product returns to sales and customer contract terms. The Company also assesses other factors that could affect product returns including market conditions, product obsolescence, and the introduction of new competition. Although these factors do not normally give the Company’s customers the right to return products outside of the regular return policy, the Company realizes that such factors could ultimately lead to increased returns. The Company analyzes these situations on a case-by-case basis and makes adjustments to the product return reserve as appropriate.As of March 31, 2018 and December 31, 2017, cumulative sales of approximately $1.0 million and $1.2 million, respectively, for one of the Company’s products were not recognized in revenues, due to insufficient information available to determine that a significant reversal of such amount will not occur when the uncertainty associated with the return refund is subsequently resolved.

The provision for product returns is reflected in net revenues.  The following table is an analysis of product return liability:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Beginning balance	$	6,522	$	3,143
Provision for product returns		747		1,062
Credits issued to third parties		(498)		(462)
Ending balance	$	6,771	$	3,743

Of the provision of product returns as of March 31, 2018 and December 31, 2017, $4.6 million and $4.1 million were included in accounts payable and accrued liabilities on the condensed consolidated balance sheets, respectively. The remaining provision of $2.2 million and $2.4 million were included in other long-term liabilities, respectively. For the three months ended March 31, 2018 and 2017,  the Company’s aggregate product return rate was 1.3% and 1.1%  of qualified sales, respectively.

Note 4.  Income (loss) per Share

Basic income (loss) per share is calculated based upon the weighted-average number of shares outstanding during the period. Diluted income (loss) per share gives effect to all potential dilutive shares outstanding during the period, such as stock options, nonvested restricted stock units and shares issuable under the Company’s Employee Stock Purchase Plan, or ESPP.

As the Company reported a net loss for the three months ended March 31, 2018, the diluted net loss per share, as reported, equals the basic net loss per share since the effect of the assumed exercise of stock options, vesting of nonvested RSUs, and issuance of common shares under the Company’s ESPP are anti-dilutive. Total stock options, nonvested RSUs, and shares issuable under the Company’s ESPP excluded from the three months ended March 31, 2018 net loss per share were 11,610,229 stock options; 1,259,273 nonvested RSUs, and 56,128 shares issuable under the ESPP.

For the three months ended March 31, 2017, options to purchase 2,376,234 shares of stock with a weighted-average exercise price of $22.44 per share, were excluded in the computation of diluted net income per share because the effect from the assumed exercise of these options would be anti-dilutive.

-10-

AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The following table provides the calculation of basic and diluted net income (loss) per share for each of the periods presented:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands, except per share data)
Basic and dilutive numerator:
Net income (loss)	$	(7,246)	$	893
Denominator:
Weighted-average shares outstanding — basic		46,514		46,069
Net effect of dilutive securities:
Incremental shares from equity awards		—		1,988
Weighted-average shares outstanding — diluted		46,514		48,057
Net income (loss) per share — basic	$	(0.16)	$	0.02
Net income (loss) per share — diluted	$	(0.16)	$	0.02

Note 5.  Segment Reporting

The Company’s business is the development, manufacture, and marketing of pharmaceutical products. The Company has established two reporting segments that each report to the Chief Operating Decision Maker, or CODM, as defined in ASC 280, Segment Reporting.  The Company’s performance is assessed and resources are allocated by the CODM based on the following two reportable segments:

· Finished pharmaceutical products

· Active pharmaceutical ingredients, or API

The finished pharmaceutical products segment manufactures, markets and distributes enoxaparin, naloxone, phytonadione, lidocaine, as well as various other critical and non-critical care drugs.  The API segment manufactures and distributes recombinant human insulin API and porcine insulin API for external customers and internal product development.

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Selected financial information by reporting segment is presented below:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Net revenues:
Finished pharmaceutical products	$	53,117	$	55,934
API		5,276		736
Total net revenues		58,393		56,670
Gross profit:
Finished pharmaceutical products		19,725		24,310
API		(2,664)		(1,482)
Total gross profit		17,061		22,828
Operating expenses		26,979		21,424
Income (loss) from operations		(9,918)		1,404
Non-operating income		888		100
Income (loss) before income taxes	$	(9,030)	$	1,504

The Company manages its business segments to the gross profit level and manages its operating and other costs on a company-wide basis. The Company does not identify total assets by segment for internal purposes, as the Company’s CODM does not assess performance, make strategic decisions, or allocate resources based on assets.

The amount of net revenues in the finished pharmaceutical product segment is presented below:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Finished pharmaceutical products net revenues:
Lidocaine	$	9,782	$	8,289
Phytonadione		9,181		7,886
Naloxone		8,927		10,939
Enoxaparin		7,007		10,410
Epinephrine		3,223		9,574
Medroxyprogesterone		2,706		—
Other finished pharmaceutical products		12,291		8,836
Total finished pharmaceutical products net revenues	$	53,117	$	55,934

Discontinuation of epinephrine injection, USP vial product

In February 2017, the U.S. Food and Drug Administration, or FDA, requested the Company to discontinue the manufacturing and distribution of its epinephrine injection, USP vial product, which had been marketed under the “grandfather” exception to the FDA’s “Prescription Drug Wrap-Up” program. The Company discontinued selling this product in the second quarter of 2017. For the year ended December 31, 2017, the Company recognized $17.8 million in net revenues for the sale of this product.

-12-

AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Net revenues and carrying values of long-lived assets of enterprises by geographic regions are as follows:

	Net Revenue				Long-Lived Assets
	Three Months Ended
	March 31,				March 31,		December 31,
	2018		2017		2018		2017
	(in thousands)
United States	$	53,104	$	55,930	$	110,461	$	110,235
China		—		—		43,323		41,078
France		5,289		740		38,131		34,026
United Kingdom		—		—		—		—
Total	$	58,393	$	56,670	$	191,915	$	185,339

Note 6.  Customer and Supplier Concentration

Customer Concentrations

Three large wholesale drug distributors, AmerisourceBergen Corporation, or AmerisourceBergen, Cardinal Health, Inc., or Cardinal, and McKesson Corporation, or McKesson, are all distributors of the Company’s products, as well as suppliers of a broad range of health care products. The Company considers these three customers to be its major customers, as each individually, and these customers collectively, represented a significant percentage of the Company’s net revenue for the three months ended March 31, 2018 and 2017 and accounts receivable as of March 31, 2018 and December 31, 2017. The following table provides accounts receivable and net revenue information for these major customers:

	% of Total Accounts				% of Net
	Receivable				Revenue
					Three Months Ended
	March 31,		December 31,		March 31,
	2018		2017		2018		2017
McKesson	22	%	22	%	28	%	26	%
AmerisourceBergen	24	%	33	%	26	%	30	%
Cardinal Health	20	%	12	%	23	%	24	%

Supplier Concentrations

The Company depends on suppliers for raw materials, active pharmaceutical ingredients, and other components that are subject to stringent FDA, requirements. Some of these materials may only be available from one or a limited number of sources. Establishing additional or replacement suppliers for these materials may take a substantial period of time, as suppliers must be approved by the FDA. Furthermore, a significant portion of raw materials may only be available from foreign sources. If the Company is unable to secure, on a timely basis, sufficient quantities of the materials it depends on to manufacture and market its products, it could have a materially adverse effect on the Company’s business, financial condition, and results of operations.

-13-

AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note 7.  Fair Value Measurements

The accounting standards of the FASB, define fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants in the principal or most advantageous market for the asset or liability at the measurement date (an exit price). These standards also establish a hierarchy that prioritizes observable and unobservable inputs used in measuring fair value of an asset or liability, as described below:

· Level 1 – Inputs to measure fair value are based on quoted prices (unadjusted) in active markets on identical assets or liabilities;

· Level 2 – Inputs to measure fair value are based on the following: a) quoted prices in active markets on similar assets or liabilities, b) quoted prices for identical or similar instruments in inactive markets, or c) observable (other than quoted prices) or collaborated observable market data used in a pricing model from which the fair value is derived; and

· Level 3 – Inputs to measure fair value are unobservable and the assets or liabilities have little, if any, market activity; these inputs reflect the Company’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities based on best information available in the circumstances.

As of March 31, 2018, cash equivalents include money market accounts. Short-term investments consist of certificates of deposit with original expiration dates within 12 months. These certificates of deposit are carried at amortized cost in the Company’s consolidated balance sheet, which approximates their fair value determined based on Level 2 inputs. The restrictions on restricted cash and short-term investments have a negligible effect on the fair value of these financial assets.

The Company does not hold any Level 2 or Level 3 instruments that are measured for fair value on a recurring basis.

Nonfinancial assets and liabilities are not measured at fair value on a recurring basis but are subject to fair value adjustments in certain circumstances. These items primarily include long-lived assets, goodwill, and intangible assets for which the fair value of assets is determined as part of the related impairment test. As of March 31, 2018 and December 31, 2017, there were no significant adjustments to fair value for nonfinancial assets or liabilities.

-14-

AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note 8.  Goodwill and Intangible Assets

The table below shows the weighted-average life, original cost, accumulated amortization, and net book value by major intangible asset classification:

	Weighted-Average			Accumulated
	Life (Years)	Original Cost		Amortization		Net Book Value
	(in thousands)
Definite-lived intangible assets
Cortrosyn® product rights	12	$	27,134	$	26,688	$	446
IMS (UK) international product rights	10		9,802		1,634		8,168
Patents	12		486		181		305
Land-use rights	39		2,540		436		2,104
Other intangible assets	4		69		50		19
Subtotal	12		40,031		28,989		11,042
Indefinite-lived intangible assets
Trademark	*		29,225		—		29,225
Goodwill - Finished pharmaceutical products	*		4,583		—		4,583
Subtotal	*		33,808		—		33,808
As of March 31, 2018	*	$	73,839	$	28,989	$	44,850

	Weighted-Average			Accumulated
	Life (Years)	Original Cost		Amortization		Net Book Value
	(in thousands)
Definite-lived intangible assets
Cortrosyn® product rights	12	$	27,134	$	26,243	$	891
IMS (UK) international product rights	10		9,440		1,337		8,103
Patents	12		486		170		316
Land-use rights	39		2,540		419		2,121
Other intangible assets	4		69		46		23
Subtotal	12		39,669		28,215		11,454
Indefinite-lived intangible assets
Trademark	*		29,225		—		29,225
Goodwill - Finished pharmaceutical products	*		4,461		—		4,461
Subtotal	*		33,686		—		33,686
As of December 31, 2017	*	$	73,355	$	28,215	$	45,140

*Intangible assets with indefinite lives have an indeterminable average life.

Sale of Fourteen Injectable ANDAs

In March 2016, the Company acquired 14 abbreviated new drug applications, or ANDAs, representing 11 different injectable chemical entities from Hikma Pharmaceuticals PLC, or Hikma. In February 2017, the Company sold the 14 ANDAs to an unrelated party. The consideration included a purchase price of $6.4 million of which the amount of $1.0 million was received upon closing, $1.0 million was received in the second quarter of 2017 and the remaining $4.4 million was received in January 2018. In addition to the purchase price, the purchaser agreed to pay the Company a royalty fee equal to 2% of net sales derived from purchaser’s sales of the products for the period from February 2017 through February 2027. The Company has not recognized any royalty fee revenue. The Company is also subject to a certain indemnification liability payable to the purchaser, which is limited up to $0.6 million. The Company recognized a gain of $2.6 million within operating (income) expenses on its condensed consolidated statement of operations for the three months ended March 31, 2017.

-15-

AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Goodwill

The changes in the carrying amounts of goodwill were as follows:

	March 31,		December 31,
	2018		2017
	(in thousands)
Beginning balance	$	4,461	$	3,976
Currency translation and other adjustments		122		485
Ending balance	$	4,583	$	4,461

Primatene® Trademark

In January 2009, the Company acquired the exclusive rights to the trademark, domain name, website and domestic marketing, distribution and selling rights related to Primatene® Mist, an over-the-counter bronchodilator product, which are recorded at the allocated fair value of $29.2 million, which is its carrying value as of March 31, 2018.

The trademark was determined to have an indefinite life. In determining its indefinite life, the Company considered the following: the expected use of the intangible; the longevity of the brand; the legal, regulatory and contractual provisions that affect their maximum useful life; the Company’s ability to renew or extend the asset’s legal or contractual life without substantial costs; effects of the regulatory environment; expected changes in distribution channels; maintenance expenditures required to obtain the expected future cash flows from the asset; and considerations for obsolescence, demand, competition and other economic factors.

As a result of environmental concerns about Chlorofluorocarbons, or CFCs, the FDA issued a final ruling on January 16, 2009 that required the CFC formulation of its Primatene® Mist product to be phased out by December 31, 2011. The former formulation of Primatene® Mist contained CFCs as a propellant; however, the Company intends to use the trademark for a future version of Primatene® that utilizes hydrofluoroalkane, or HFA, as a propellant.

In 2013, the Company filed a new drug application, or NDA, for Primatene® Mist and received a Prescription Drug User Fee Act date set for May 2014.  In May 2014, the Company received a complete response letter, or CRL, from the FDA, which required additional non-clinical information, label revisions and follow-up studies (label comprehension, behavioral/human factors and actual use) to assess consumers’ ability to use the device correctly to support approval of the product in the over-the-counter setting. The Company submitted a responsive NDA amendment in June 2016 and received a second CRL from the FDA in December 2016, which requires additional packaging and label revisions and follow-up studies to assess consumers’ ability to use the product correctly to support approval in the over-the-counter setting. After several meetings with the FDA in 2017, the Company further revised its packaging and label and plans to perform another human factors study based on such revisions. In November 2017, the Company submitted its proposed protocol to the FDA. In March 2018, the Company received as Advice Letter from the FDA regarding our proposed protocol. Based on that feedback, the Company has conducted an additional human factors study. The Company believes it has received acceptable results from the study, and the Company has resubmitted the NDA. The Company intends to continue to work with the FDA to address their concerns in the CRL and bring Primatene® Mist back to the over-the-counter market. However, there can be no guarantee that any future amendment to the Company’s NDA will result in timely approval of Primatene® Mist or approval at all.

Based on the Company’s filed version of Primatene® Mist, the long history of the Primatene® trademark (marketed since 1963), and the Company’s perpetual rights to the trademark, the nature of the CRL received in December 2016, the plan that the HFA version will be marketed under the same trademark if approved by the FDA, and other factors previously considered, the trademark continues to have an indefinite useful life, and an impairment charge is not required based on the Company’s qualitative assessment as of March 31, 2018.

-16-

AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note  9.  Inventories

Inventories consist of the following:

	March 31,		December 31,
	2018		2017
	(in thousands)
Raw materials and supplies	$	22,272	$	19,973
Work in process		21,796		22,469
Finished goods		18,712		21,167
Total inventories	$	62,780	$	63,609

A charge of $1.9 million and $0.4 million was included in the cost of revenues in the Company’s consolidated statements of operations for the three months ended March 31, 2018 and 2017, respectively, to adjust the Company’s inventory and related firm inventory purchase commitments to their net realizable value.

Note 10.  Property, Plant, and Equipment

Property, plant, and equipment consist of the following:

	March 31,		December 31,
	2018		2017
	(in thousands)
Buildings	$	89,579	$	89,124
Leasehold improvements		29,938		29,847
Land		7,148		7,110
Machinery and equipment		120,756		118,056
Furniture, fixtures, and automobiles		17,132		16,385
Construction in progress		63,959		58,145
Total property, plant, and equipment		328,512		318,667
Less accumulated depreciation		(136,597)		(133,328)
Total property, plant, and equipment, net	$	191,915	$	185,339

As of March 31, 2018 and December 31, 2017, the Company had $2.2 million and $2.3 million, respectively, in capitalized manufacturing equipment that is intended to be used specifically for the manufacture of Primatene® Mist. The Company will continue to monitor developments with the FDA as it relates to its Primatene® indefinite lived intangible assets in determining if there is an impairment of these related fixed assets (see Note 8).

-17-

AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note 11.  Accounts Payable and Accrued Liabilities

Accounts payable and accrued liabilities consisted of the following:

	March 31,		December 31,
	2018		2017
	(in thousands)
Accrued customer fees and rebates	$	13,464	$	15,981
Accrued payroll and related benefits		17,774		15,680
Accrued product returns, current portion		4,586		4,133
Other accrued liabilities		7,043		5,132
Total accrued liabilities		42,867		40,926
Accounts payable		15,631		16,629
Total accounts payable and accrued liabilities	$	58,498	$	57,555

Note  12.  Debt

Debt consists of the following:

	March 31,		December 31,
	2018		2017
	(in thousands)
Loans with East West Bank
Line of credit facility due December 2018	$	—	$	—
Equipment loan due January 2019		1,283		1,668
Mortgage payable due February 2021		3,556		3,577
Equipment loan due June 2021		3,980		4,286
Equipment line of credit due December 2022		—		—
Mortgage payable due October 2026		3,509		3,524
Mortgage payable due June 2027		8,903		8,936
Loans with Cathay Bank
Line of credit facility due May 2018		—		—
Acquisition loan due April 2019		14,562		15,073
Mortgage payable due August 2027		7,752		7,795
Loans with Seine-Normandie Water Agency
French government loan 1 paid off March 2018		—		17
French government loan 2 due June 2020		88		85
French government loan 3 due July 2021		248		239
Payment Obligation to Merck		599		599
Equipment under Capital Leases		1,287		1,357
Total debt and capital leases		45,767		47,156
Less current portion of long-term debt and capital leases		6,061		6,312
Long-term debt and capital leases, net of current portion	$	39,706	$	40,844

-18-

AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

As of March 31, 2018, the fair value of the loans approximates their carrying amount. The interest rate used in the fair value estimation was determined to be a Level 2 input. For certain loans with East West Bank, the Company has entered into fixed interest rate swap contracts to exchange the variable interest rates for fixed interest rates over the life of certain debt instruments without the exchange of the underlying notional debt amount. The interest rate swap contracts do not qualify for hedge accounting and are recorded at fair value based on Level 2 inputs. These swap contacts have an aggregate fair value of $0.4 million and $0.1 million as of March 31, 2018 and December 31, 2017, respectively.  The change in fair value is recorded in other income (expense) in the Company’s condensed consolidated statement of operations.

Covenants

At March 31, 2018 and December 31, 2017, the Company was in compliance with its debt covenants, which include a minimum current ratio, minimum debt service coverage, minimum tangible net worth, maximum debt-to-effective-tangible-net-worth ratio, and minimum deposit requirement, computed on a consolidated basis. The fixed charge coverage ratio and debt service coverage ratio requirements for loans with Cathay Bank were not effective as of December 31, 2017. Such requirements will become effective as of December 31, 2018.

Equipment under Capital Leases

The Company entered into leases for certain equipment under capital leasing arrangements, which will expire at various times through 2022. The cost of equipment under capital leases was $1.6 million and $1.6 million at March 31, 2018 and December 31, 2017, respectively.

Note  13.  Income Taxes

The following table sets forth the Company’s income tax provision for the periods indicated:

	Three Months Ended
	March 31,
	2018			2017
	(in thousands)
Income (loss) before taxes	$	(9,030)		$	1,504
Income tax expense (benefit)		(1,784)			611
Net income (loss)	$	(7,246)		$	893
Income tax provision as a percentage of income before income taxes		19.8	%		40.6	%

The decrease in the Company’s effective tax rate for the three months ended March 31, 2018, was primarily due to the Tax Act, which was enacted on December 22, 2017. The Tax Act, among other things, reduces the statutory U.S. federal corporate income tax rate from 35% to 21% and requires companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred. In March 2018, the FASB issued ASU No. 2018-05 to incorporate Staff Accounting Bulletin, or SAB 118, pursuant to which the Company’s final analysis will be completed over a one-year measurement period ending December 22, 2018, and any adjustments during this measurement period will be included in net earnings from continuing operations as an adjustment to income tax expense in the reporting period when such adjustments are determined. During the three month period ended March 31, 2018, the Company has made no changes to the provisional amounts recorded at December 31, 2017. The Company will continue to refine its calculations as additional analysis and changes to certain amounts and estimates are completed and tax returns are filed. The Company’s estimates may also be affected as it gains a more thorough understanding of the tax law.

Effective January 1, 2018, the Company adopted ASU No. 2016-16, Intra-Entity Transfers of Assets Other Than Inventory, pursuant to which the income tax consequences of intra-entity transfer of an asset other than inventory is required to be recognized in the period in which the transfer occurs. The Company adopted the standard on a modified

-19-

AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

retrospective basis resulting in an increase of deferred tax assets and the beginning balance of retained earnings by $0.5 million, respectively.

Valuation Allowance

In assessing the need for a valuation allowance, management considers whether it is more likely than not that some portion or all of the deferred tax assets will be realized. Ultimately, the realization of deferred tax assets depends on the existence of future taxable income. Management considers sources of taxable income such as income in prior carryback periods, future reversal of existing deferred taxable temporary differences, tax-planning strategies, and projected future taxable income.

The Company has discontinued recognizing AFP income tax benefits by recording a full valuation allowance until it is determined that it is more likely than not that AFP will generate sufficient taxable income to realize its deferred income tax assets.

Note  14. Stockholders' Equity

The changes in stockholders’ equity for the three months ended March 31, 2018, consisted of the following:

	Three Months Ended
	March 31,
	2018
	(in thousands)
Stockholders’ equity as of December 31, 2017	$	337,329
Beginning balance adjustment as a result of the adoption of new accounting standards		582
Net loss		(7,246)
Other comprehensive income		1,190
Net proceeds from equity plans		(1,793)
Share-based compensation expense		4,666
Purchase of treasury stock		(7,624)
Stockholders’ equity as of March 31, 2018	$	327,104

Share Buyback Program

Pursuant to the Company’s share buyback program, the Company purchased 407,604 and 532,894 shares of its common stock during the three months ended March 31, 2018 and 2017, totaling $7.6 million and $8.2 million, respectively.

On May 7, 2018, the Company’s Board of Directors authorized an increase of $20.0 million to the Company’s share buyback program, which is expected to continue for an indefinite period of time. The primary goal of the programs is to offset dilution created by the Company’s equity compensation programs.

Purchases are made through open market and private block transactions pursuant to Rule 10b5-1 plans, privately negotiated transactions or other means as determined by the Company’s management and in accordance with the requirements of the SEC. The timing and actual number of shares repurchased will depend on a variety of factors including price, corporate and regulatory requirements, and other conditions. These repurchased shares are accounted for under the cost method and are included as a component of treasury stock in the Company’s consolidated balance sheets. 

-20-

AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The 2015 Equity Incentive Plan

As of March 31, 2018, the Company reserved an aggregate of 4,782,238 shares of common stock for future issuance under the 2015 Equity Incentive Plan, or the 2015 Plan. In January 2018, an additional 1,165,590 shares were reserved under the 2015 Plan pursuant to the evergreen provision.

Share-Based Award Activity and Balances

The Company accounts for share‑based compensation payments in accordance with ASC 718, which requires measurement and recognition of compensation expense at fair value for all share‑based payment awards made to employees and directors. Under these standards, the fair value of option awards and the option components of the Employee Stock Purchase Plan awards are estimated at the grant date using the Black-Scholes option-pricing model. The fair value of RSUs is estimated at the grant date using the Company’s common share price. Non‑vested stock options held by non-employees are revalued at each balance sheet date.The portion that is ultimately expected to vest is amortized and recognized in compensation expense on a straight-line basis over the requisite service period, generally from the grant date to the vesting date.

The weighted-averages for key assumptions used in determining the fair value of options granted during the three months ended March 31, 2018 and 2017, are as follows:

	Three Months Ended
	March 31,
	2018		2017
Average volatility	39.6	%	36.7	%
Risk-free interest rate	2.7	%	2.2	%
Weighted-average expected life in years	5.8		5.7
Dividend yield rate	—	%	—	%

A summary of option activity under all plans for the three months ended March 31, 2018, is presented below:

				Weighted-Average
		Weighted-Average		Remaining	Aggregate
		Exercise		Contractual	Intrinsic
	Options	Price		Term (Years)	Value(1)
					(in thousands)
Outstanding as of December 31, 2017	10,898,701	$	14.65
Options granted	966,026		20.59
Options exercised	(147,508)		12.61
Options cancelled	(106,615)		13.02
Options expired	(375)		14.66
Outstanding as of March 31, 2018	11,610,229	$	15.19	5.02	$	49,844
Exercisable as of March 31, 2018	8,122,678	$	15.07	3.79	$	36,557

⁽¹⁾ The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the estimated fair value of the Company’s common stock for those awards that have an exercise price below the estimated fair value at March 31, 2018.

For the three months ended March 31, 2018 and 2017,  the Company recorded of $2.4 million and $2.0 million, respectively, related to stock options granted to employees under all plans, and expenses of $0.1 million and $0.1 million, respectively, related to stock options granted to the Board of Directors under all plans.  

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Information relating to option grants and exercises is as follows:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands, except per share data)
Weighted-average grant date fair value per option share	$	7.94	$	4.87
Intrinsic value of options exercised		1,061		24
Cash received from options exercised		1,861		96
Total fair value of the options vested during the year		6,407		4,781

A summary of the status of the Company’s nonvested options as of March 31, 2018, and changes during the three months ended March 31, 2018, are presented below:

		Weighted-Average
		Grant Date
	Options	Fair Value
Non-vested as of December 31, 2017	4,310,241	$	4.21
Options granted	966,026		7.94
Options vested	(1,682,101)		3.81
Options forfeited	(106,615)		4.77
Non-vested as of March 31, 2018	3,487,551		5.41

As of March 31, 2018, there was $15.6 million of total unrecognized compensation cost, net of forfeitures, related to nonvested stock option based compensation arrangements granted under all plans. The cost is expected to be recognized over a weighted-average period of 2.7 years and will be adjusted for future changes in estimated forfeitures. 

Restricted Stock Units

The Company grants restricted stock units, or RSUs, to certain employees and members of the Board of Directors with a vesting period of up to five years. The grantee receives one share of common stock at a specified future date for each RSU awarded. The RSUs may not be sold or otherwise transferred until certificates of common stock have been issued, recorded, and delivered to the participant. The RSUs do not have any voting or dividend rights prior to the issuance of certificates of the underlying common stock. The share-based expense associated with these grants was based on the Company’s common stock fair value at the time of grant and is amortized over the requisite service period, which generally is the vesting period using the straight-line method. During the three months ended March 31, 2018 and 2017, the Company recorded a total expense of $1.7 million and $2.0 million, respectively, related to RSU awards granted to employees under all plans and expenses of $0.1 million and $0.1 million, respectively, related to RSU awards granted to the Board of Directors.

As of March 31, 2018, there was $17.2 million of total unrecognized compensation cost, net of forfeitures, related to nonvested RSU-based compensation arrangements granted under all plans. The cost is expected to be recognized over a weighted-average period of 2.8 years and will be adjusted for future changes in estimated forfeitures.

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Information relating to RSU grants and deliveries is as follows:

		Total Fair Market
		Value of RSUs
		Issued
	Total RSUs	as
	Issued	Compensation(1)
		(in thousands)
RSUs outstanding at December 31, 2017	1,392,781
RSUs granted	387,551	$	7,670
RSUs forfeited	(40,473)
RSUs vested(2)	(480,586)
RSUs outstanding at March 31, 2018	1,259,273

⁽¹⁾ The total fair market value is derived from the number of RSUs granted times the current stock price on the date of grant.

⁽²⁾ Of the vested RSUs, 187,528 shares of common stock were surrendered to fulfil tax withholding obligations.

The Company recorded share-based compensation expense under all plans and is included in the Company’s consolidated statement of operations as follows:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Cost of revenues	$	1,160	$	1,131
Operating expenses:
Selling, distribution, and marketing		107		84
General and administrative		2,893		2,783
Research and development		506		453
Total share-based compensation	$	4,666	$	4,451

Note 15.  Employee Benefits

401(k) Plan

The Company has a defined contribution 401(k) plan, or the Plan, whereby eligible employees voluntarily contribute up to a defined percentage of their annual compensation. The Company matches contributions at a rate of 50% on the first 6% of employee contributions, and pays the administrative costs of the Plan. Employer contributions vest over four years. Total employer contributions for the three months ended March 31, 2018 and 2017, were approximately $0.3 million and $0.3 million, respectively.

Defined Benefit Pension Plan

In connection with the Merck API Transaction, the Company assumed an obligation associated with a defined-benefit plan for eligible employees of AFP.  This plan provides benefits to the employees from the date of retirement and is based on the employee’s length of time employed by the Company.  The calculation is based on a statistical calculation combining a number of factors that include the employee’s age, length of service, and AFP employee turnover rate.

The liability under the plan is based on a discount rate of 1.60% as of March 31, 2018 and December 31, 2017, respectively.  The liability is included in accrued liabilities in the accompanying consolidated balance sheets. The plan is currently unfunded, and the benefit obligation under the plan was $2.3 million and $2.1 million at March 31, 2018 and December 31, 2017, respectively. The Company recorded an immaterial amount of expense under the plan for the three months ended March 31, 2018 and 2017. 

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note  16.  Commitments and Contingencies

Supply Agreement with MannKind Corporation

On July 31, 2014, the Company entered into a supply agreement with MannKind Corporation, or MannKind, or the Supply Agreement, pursuant to which the Company agreed to manufacture for and supply to MannKind certain quantities of recombinant human insulin, or RHI API for use in MannKind’s product Afrezza®. In January 2015, the Company entered into a supply option agreement with MannKind, or the Option Agreement, pursuant to which MannKind has the option to purchase additional RHI API. The Supply Agreement and the Option Agreement were subsequently amended in November 2016.  For the year ended December 31, 2017, sales of RHI API to MannKind totaled $3.2 million, which fulfilled the 2017 commitment of RHI API under the amended Supply Agreement.  Under the Option Agreement, the Company recognized the cancellation fee for 2018 of $0.9 million in net revenues in its consolidated statement of operations for the year ended December 31, 2017.

Collaboration Agreements with Medical Device Manufacturers

In August 2014, the Company entered into a collaboration agreement with a medical device manufacturer to develop a drug delivery system to be used by the Company for one of its pipeline products. As of March 31, 2018, the Company has paid an upfront payment of $0.5 million and $1.5 million in milestone payments under this agreement, which were classified as research and development expense as the milestones were met. The Company is obligated to pay up to an additional $0.5 million if certain research and development milestones are met. As of March 31, 2018, no such obligation existed. Pursuant to the collaboration agreement, if the medical device manufacturer is successful in the development of this drug delivery system and the Company’s pipeline products receive appropriate regulatory approval, the Company intends to enter into a commercial supply agreement with such medical device manufacturer for a minimum purchase of 1.0 million units during the first 12 months.

In October 2017, the Company entered into a collaboration agreement with a medical device manufacturer to develop a drug delivery system to be used by the Company for one of its pipeline products for a total of $1.6 million. As of March 31, 2018, the Company has paid an upfront payment of $0.4 million, and is obligated to pay up to an additional $1.2 million, if certain research and development milestones are met. As of March 31, 2018, no such obligation existed for the milestones. In addition, pursuant to the collaboration agreement, if the medical device manufacturer is successful in the development of this drug delivery system and the Company’s pipeline products receive appropriate regulatory approval, the Company intends to enter into a commercial supply agreement with such medical device manufacturer under which the Company is obligated to pay an additional $1.0 million, if certain commercial development milestones are met and to purchase a minimum of 100,000 units per year for three years.

Operating Lease Agreements

The Company leases real and personal property, in the normal course of business, under various non-cancelable operating leases. The Company, at its option, can renew a substantial portion of its leases, at the market rate, for various renewal periods ranging from one to six years. Rental expense under these leases for the three months ended March 31, 2018 and 2017, was approximately $1.0 million and $0.9 million, respectively. 

Purchase Commitments

As of March 31, 2018, the Company has entered into commitments to purchase equipment and raw materials for an aggregate amount of approximately $50.0 million. The Company anticipates that most of these commitments with remaining terms in excess of one year will be fulfilled by 2019. In addition, the Company is obligated to pay a supplier certain payments up to $1.5 million based on the sale of one of the Company’s product.

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The Company entered into agreements with a Chinese governmental entity to acquire land-use rights to real property in Nanjing, China. Under the terms of these agreements, the Company committed to invest capital in its wholly-owned subsidiary, ANP, and to develop these properties as an API manufacturing facility for the Company’s pipeline products. In conjunction with these agreements, ANP modified its business license on July 3, 2012, to increase its authorized capital. As of December 31, 2016, the Company had completed its investment of total registered capital commitment of $61.0 million to ANP. This investment in ANP resulted in cash being transferred from the U.S. parent company to ANP.

Per these agreements, in January 2010, the Company acquired certain land-use rights with a carrying value of $1.2 million.  In addition, the Company purchased additional land-use rights in November 2012 for $1.3 million.  The Company committed to spend approximately $15.0 million in land development.  The agreements require the construction of fixed assets on the property and specified a timetable for the construction of these fixed assets. The current pace of development of the property is behind the schedules described in the purchase agreements and, per the purchase agreements, potential monetary penalties could result if the development is delayed or not completed in accordance with the guidelines stated in the purchase agreements.The Company is in discussions with the Chinese government regarding the development and believes that the likelihood of incurring any penalty is remote.

Note 17.   Litigation

Enoxaparin Patent Litigation

In September 2011, Momenta Pharmaceuticals, Inc., or Momenta, a Boston‑based pharmaceutical company, and Sandoz Inc., or Sandoz, the generic division of Novartis, initiated litigation against the Company for alleged patent infringement of two patents related to testing methods for batch release of enoxaparin, which the Company refers to as the “‘886 patent” and the “‘466 patent.” The lawsuit was filed in the United States District Court for the District of Massachusetts, or the Massachusetts District Court. In October 2011, the Massachusetts District Court issued a preliminary injunction barring the Company from selling its generic enoxaparin product and also requiring Momenta and Sandoz to post a $100.1 million bond. The preliminary injunction was stayed by the United States Court of Appeals for the Federal Circuit, or the Federal Circuit, in January 2012, and reversed by the Federal Circuit in August 2012.

In January 2013, the Company moved for summary judgment of non‑infringement of both patents. Momenta and Sandoz withdrew their allegations as to the ‘466 patent, and in July 2013, the Massachusetts District Court granted the Company’s motion for summary judgment of non‑infringement of the ‘886 patent and denied Momenta and Sandoz’s motion for leave to amend their infringement contentions. On January 24, 2014, the Massachusetts District Court judge entered final judgment in the Company’s favor on both patents. Momenta and Sandoz also filed a motion to collect attorneys’ fees and costs relating to a discovery motion, which the Massachusetts District Court granted. On May 9, 2016, the Massachusetts District Court issued an order imposing fees and costs of approximately $0.4 million in relation to this discovery motion. This amount has been accrued in the general and administrative expense for the quarter ended March 31, 2016.  On January 30, 2014, Momenta and Sandoz filed a notice of appeal to the Federal Circuit appealing the court’s final judgment including summary judgment denying Momenta and Sandoz’s motion for leave to amend their infringement contentions.

Following appeal briefing filed by the parties, the Federal Circuit held oral argument on May 4, 2015. On November 10, 2015, the Federal Circuit panel affirmed-in-part and vacated-in-part the decision of the Massachusetts District Court granting summary judgment of non-infringement as to the Company, and it remanded the case to the Massachusetts District Court for further proceedings consistent with its opinion. The Federal Circuit panel affirmed the Massachusetts District Court’s holding in the Company’s favor that the Company does not infringe under 35 U.S.C. 271(g), and the panel vacated the grant of summary judgment to the extent it was based on the determination that the Company’s activities fall within the 35 U.S.C. 271(e)(1) safe harbor. The Federal Circuit panel also left to the Massachusetts District Court’s discretion whether to reconsider on remand its denial of leave for Momenta and Sandoz to amend their

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

infringement contentions. On January 11, 2016, the Company filed a Petition for Rehearing En Banc with the Federal Circuit. On February 17, 2016, the Federal Circuit denied the Company’s Petition, and the Federal Circuit issued its mandate on February 24, 2016, whereby the case returned to the Massachusetts District Court for further proceedings. 

On March 18, 2016, the parties filed a joint status report with the Massachusetts District Court. On June 21, 2016, the Massachusetts District Court granted Momenta and Sandoz’s Motion for Leave to Amend its Infringement Contentions. In light of Momenta and Sandoz’s Amended Infringement Contentions and recent changes in Supreme Court precedent since the case was stayed in 2012, the Company sought to amend its Non-Infringement and Invalidity Contentions.

On July 18, 2016, the Company submitted its Motion for Leave to Amend Its Non-Infringement and Invalidity Contentions and Momenta and Sandoz responded on July 25, 2016. In light of the new arguments made in their response, the Company further filed a Motion For Leave to Reply in Further Support of Defendants’ Motion for Leave to Amend Non-Infringement and Invalidity Contentions, which was granted. A hearing was held on August 23, 2016, where the Magistrate Judge ordered the Company to file its proposed amended contentions, which it filed on August 31, 2016. On February 4, 2017, the Magistrate Judge issued an order denying the Company leave to amend its contentions. The Company filed objections to this order with the District Court on February 21, 2017. On April 13, 2017, the District Court rejected the determination of the Magistrate Judge with respect to the Company’s amended non-infringement contentions, and allowed the Company to amend its non-infringement contentions. With respect to the Company’s amended invalidity contentions, the District Court accepted the Magistrate Judge’s determination; however, the District Court specifically stated that the Company can argue changes in law at the summary judgment stage or at trial.

In parallel with the Massachusetts District Court proceedings, the Company appealed the Federal Circuit’s decision to vacate the grant of the Company’s summary judgment to the extent it was based on the determination that the Company’s activities are protected under the Safe Harbor. The Company filed a Petition for a Writ of Certiorari with the Supreme Court on May 17, 2016. Momenta and Sandoz initially waived their right to respond to the petition; however, on May 31, 2016, the Supreme Court requested a response from Momenta and Sandoz. The response from Momenta and Sandoz was initially due on June 30, 2016, but they requested an extension. Momenta and Sandoz filed their response on August 1, 2016. On October 3, 2016, the Supreme Court declined the Petition for a Writ of Certiorari.

Fact discovery in the Massachusetts District Court proceedings closed on November 22, 2016, and the parties proceeded with expert discovery and exchanged opening and rebuttal expert reports. Expert discovery closed on March 24, 2017. On April 14, 2017, Plaintiffs filed a Motion for Summary Judgment seeking to dismiss the Company’s equitable defenses. On April 14, 2017, the Company filed Defendants’ Motion for Summary Judgment of Invalidity and Noninfringement. In the Motion, the Company moved for the District Court to grant summary judgment in favor of the Company on the following issues: (1) the ’886 patent is invalid under 35 U.S.C. § 101 as claiming non-patentable subject matter; (2) the ’886 patent is invalid under 35 U.S.C. § 112 because the claims are indefinite; and (3) the Company’s tests do not infringe the claims of the ’886 patent. Oppositions to the motions for summary judgment were filed on May 5, 2017. Replies in support of the motions for summary judgment were filed on May 19, 2017. On June 16, 2017, the District Court issued an order denying the summary judgment motions. The District Court also denied Plaintiffs’ motion for summary judgment dismissing the Company’s defenses of implied waiver and equitable estoppel, and denied Plaintiffs’ alternative request for a separate hearing on the implied waiver and equitable estoppel defenses holding that the defenses would be submitted to the jury for an advisory verdict.

Trial in the Massachusetts District Court on all claims and defenses began on July 10, 2017. On July 21, 2017, the jury returned a unanimous verdict finding that although the Company’s tests infringed the asserted patent, the patent was invalid for lack of enablement and lack of written description and the jury further found that Plaintiffs are entitled to zero ($0) damages. As for the Company’s defenses of implied waiver and equitable estoppel, the jury found that Plaintiffs waived their right to recover for infringement of the asserted patent and that Plaintiffs are estopped from enforcing the asserted patent against the Company. The verdict on these equitable defenses was briefed by the parties and submitted to the Court. In the post-trial briefing, the Company requested the Court to adopt the findings of the jury on the equitable defenses, and to set aside the jury’s finding of infringement. In Plaintiffs’ post-trial briefing, Plaintiffs requested a new

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

trial, and requested the Court to set aside the jury’s finding that the asserted patent was invalid for lack of enablement and lack of written description. In a February 7, 2018 Memorandum and Order and with respect to the equitable defenses, the Court found that Plaintiffs waived their right to enforce the ‘866 patent against the Company for its use of one of its test, and are equitably estopped from enforcing the ‘866 patent against the Company for its use of that same test. The Court also found that Plaintiffs have not waived their right to enforce the ‘866 patent against the Company for its use of a second test, and are not equitable estopped from enforcing the ‘866 patent against the Company for its use of that same second test. On February 7, 2018, the Court also denied all other post-trial motions. On March 20, 2018, the Court entered final judgment in this matter reflecting the jury’s verdict and the Court’s February 7, 2018 Memorandum and Order.

On March 23, 2018, the Company filed a motion to enforce liability on the bonds related to the preliminary injunction issued in October 2011, stayed in January 2012, and reversed by the Federal Circuit in August 2012. On March 27, 2018, Plaintiffs filed a notice of appeal with the Federal Circuit. Plaintiffs have not yet identified the issues they intend to appeal. On April 3, 2018, Plaintiffs filed a motion with the District Court to defer decision on the Company’s motion to enforce liability on the bonds pending their appeal. The Court has not yet decided the Company’s or Plaintiffs’ motions.

The Company will continue to vigorously defend the jury’s verdict, including against any potential appeal by the Plaintiffs. The Company intends to continue to pursue its attempt to collect the $100.1 million bond posted by Momenta and Sandoz.

False Claims Act Litigation

In January 2009, the Company filed a qui tam complaint in the U.S. District Court for the Central District of California, or the California District Court, alleging that Aventis Pharma S.A., or Aventis, through its acquisition of a patent through false and misleading statements to the U.S. Patent and Trademark Office, as well as through false and misleading statements to the FDA, overcharged the federal and state governments for its Lovenox® product. If the Company is successful in this litigation, it could be entitled to a portion of any damage award that the government ultimately may recover from Aventis. In October 2011, the California District Court unsealed the Company’s complaint.

On February 28, 2014, Aventis filed a motion for summary judgment on the issue of the adequacy of the Company’s notice letter to the government, and the California District Court denied Aventis’ motion for summary judgment in a final order it issued on May 12, 2014. On June 9, 2014, at Aventis’ request, the California District Court issued an order certifying for appeal its order denying Aventis’ motion for summary judgment. On June 9, 2014, Aventis filed with the United States Court of Appeals for the Ninth Circuit, or the Ninth Circuit, a petition for permission to appeal the California District Court’s denial of Aventis’ motion for summary judgment, and the Company filed an opposition to Aventis’ petition on June 19, 2014. On August 22, 2014, the Ninth Circuit granted Aventis’ petition. The parties filed their respective appeal briefs with the Ninth Circuit. On November 10, 2016, the Ninth Circuit heard oral argument on the appeal.

The California District Court set an evidentiary hearing for July 7, 2014 on the “original source” issue, a key element under the False Claims Act. The evidentiary hearing was conducted as scheduled, from July 7, 2014 through July 10, 2014. On July 13, 2015, the California District Court issued a ruling concluding that the Company is not an original source under the False Claims Act, and entered final judgment dismissing the case for lack of subject matter jurisdiction.

On July 20, 2015, the Company filed with the Ninth Circuit a notice of appeal of the California District Court’s dismissal of the case, and Aventis filed a notice of cross-appeal on August 5, 2015. On November 12, 2015, Aventis filed a pleading asking that the California District Court impose various monetary penalties and fines against the Company, including disgorgement of enoxaparin revenues and attorneys’ fees expended by Aventis in this action, based on Aventis’s allegations that the Company engaged in sanctionable conduct. On November 23, 2015, the California District Court issued an order setting forth a procedure for sanctions proceedings as to the Company as well as its outside

-27-

AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

counsel. On December 24, 2015, the Company filed a pleading with the California District Court opposing the imposition of sanctions, and on January 20, 2016, Aventis filed a response pleading further pressing for the imposition of sanctions. On May 4, 2016, the California District Court issued three orders requesting that the Company and its outside counsel file a document showing cause as to why sanctions should not be imposed and to set up a conference call with the partiers and the court to discuss whether any discovery and/or a hearing is necessary. On June 13, 2016, the Company and its outside counsel each filed responses to the court’s order to show cause as to why sanctions should not be imposed. On July 21, 2016, Aventis filed a response contending that the court should impose sanctions. On February 10, 2017, the Court held a show cause hearing regarding the potential imposition of sanctions and took the matter under submission. On September 18, 2017, the District Court issued its decision that no sanctions will be imposed on either the Company or its counsel.

On March 28, 2016, the Company filed its opening brief with the Ninth Circuit Court of Appeals setting forth detailed arguments as to why the False Claims Act litigation should not have been dismissed by the California District Court. On June 20, 2016, Aventis filed its principal brief in the appeal, responding to the Company’s arguments regarding dismissal of the False Claims Act litigation, and setting forth Aventis’s argument that it should be awarded attorneys’ fees and expenses. On September 19, 2016, the Company filed its reply brief to Aventis’s principal brief. On October 3, 2016, Aventis filed its reply brief in support of its cross-appeal of the District Court’s denial of attorneys’ fees. On November 10, 2016, the Ninth Circuit heard oral argument on the appeals.

On May 11, 2017, the Ninth Circuit issued an opinion affirming the California District Court’s dismissal of the action for lack of subject matter jurisdiction; dismissing as moot Aventis’s appeal from the District Court’s denial of its motion for summary judgment on the issue of the adequacy of the Company’s notice letter to the government; reversing the District Court’s denial of Aventis’s motion for attorneys’ fees; and remanding the case to the District Court for resolution of the attorneys’ fees issue. On July 14, 2017, Aventis filed an application with the District Court for entitlement to attorneys’ fees and expenses. The Company intends to continue to vigorously defend against any such imposition of attorneys’ fees or sanctions.

Momenta/Sandoz Antitrust Litigation

On September 17, 2015, the Company initiated a lawsuit by filing a complaint in the California District Court against Momenta and Sandoz, or the Defendants. The Company’s complaint generally asserts that Defendants have engaged in certain types of illegal, monopolistic, and anticompetitive conduct giving rise to various causes of action against them. On December 9, 2015, Defendants filed a motion to dismiss and a motion to transfer the case to the District of Massachusetts. On January 4, 2016, the Company filed oppositions to both motions. On January 26, 2016, the California District Court granted Defendants’ motion to transfer and did not rule on Defendants’ motion to dismiss. Accordingly, the case was transferred to the District of Massachusetts. On February 9, 2016, the Company filed a writ of mandamus with the Ninth Circuit to attempt to appeal the California District Court’s granting of Defendants’ motion to transfer to the District of Massachusetts. The Ninth Circuit denied this petition on May 20, 2016, and as such the case will remain before the District of Massachusetts. On July 27, 2016, the Massachusetts District Court granted Defendants’ motion to dismiss based on antitrust immunity doctrine, without addressing the substantive merits of the claims.

On August 25, 2016, the Company filed with the First Circuit Court of Appeals a notice of appeal of the Massachusetts District Court’s dismissal of the antitrust case. On October 31, 2016, the Company filed its appeal brief with the First Circuit. On December 5, 2016, Defendants filed their response brief with the First Circuit Court of Appeals. On December 19, 2016, the Company filed its rely brief with the First Circuit Court of Appeals, which concluded the briefing on this appeal. On February 9, 2017, the First Circuit Court of Appeals heard oral arguments. On March 6, 2017, the First Circuit Court of Appeals issued its decision, in which it held 3 to 0 that the District Court of Massachusetts erred in dismissing the Company’s antitrust case and sent the case back to the District Court to consider additional arguments.

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AMPHASTAR PHARMACEUTICALS, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

On April 20, 2017, Defendants filed their supplemental motion to dismiss and the Company filed its opposition on May 4, 2017. On March 19, 2018, the District Court entirely denied the Defendants’ motion to dismiss. On April 19, 2018, the Defendants filed a motion to seek interlocutory appeal of the District Court’s motion to dismiss opinion. The Company filed its opposition to interlocutory appeal on May 1, 2018.

On March 19, 2018, the District Court granted the parties’ joint motion to extend the case schedule and accepted their proposed dates with a few modifications. Under the schedule, fact discovery will close on October 1, 2018. Summary judgment arguments are due on April 26, 2019; oppositions are due on June 14, 2019; and replies are due on July 10, 2019. Trial is scheduled for September 9, 2019.

Other Litigation

The Company is also subject to various other claims and lawsuits from time-to-time arising in the ordinary course of business. The Company records a provision for contingent losses when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. In the opinion of management, the ultimate resolution of any such matters is not expected to have a material adverse effect on its financial position, results of operations, or cash flows; however, the results of litigation and claims are inherently unpredictable and the Company’s view of these matters may change in the future. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources, and other factors.

-29-

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

The following is a discussion and analysis of the consolidated operating results, financial condition, liquidity and cash flows of our company as of and for the periods presented below. The following discussion and analysis should be read in conjunction with the “Condensed Consolidated Financial Statements” and the related notes thereto included in this Quarterly Report on Form 10-Q, or Quarterly Report. This discussion contains forward-looking statements that are based on the beliefs of our management, as well as assumptions made by, and information currently available to, our management. Actual results could differ materially from those discussed in or implied by  forward-looking statements. These risks, uncertainties, and other factors include, among others, those identified under the “Special Note About Forward-Looking Statements,” above and described in greater detail elsewhere in this Quarterly Report and in our Annual Report on Form 10-K for the year ended December 31, 2017, particularly in Item 1A. “Risk Factors”.

Overview

We are a specialty pharmaceutical company that focuses primarily on developing, manufacturing, marketing and selling technically challenging generic and proprietary injectable, inhalation and intranasal products as well as insulin API products. We currently manufacture and sell over 20 products. We are currently developing a portfolio of 15 generic abbreviated new drug applications, or ANDAs, three generic biosimilar product candidates and six proprietary product candidates, which are in various stages of development and target a variety of indications. With respect to these product candidates, we have three ANDAs, and two NDAs on file with the FDA.

Our largest products by net revenues currently include naloxone hydrochloride injection, lidocaine jelly and sterile solution, phytonadione, and enoxaparin sodium injection. During the first quarter of 2018, we launched medroxyprogesterone acetate and in the fourth quarter of 2017, we launched neostigmine methysulfate.

To complement our internal growth and expertise, we have made several strategic acquisitions of companies, products and technologies. These acquisitions collectively have strengthened our core injectable and inhalation product technology infrastructure by providing additional manufacturing, marketing, and research and development capabilities including the ability to manufacture raw materials, APIs and other components for our products.

Included in these acquisitions are marketing authorizations for 33 products in the UK, Ireland, Australia, and New Zealand, representing 11 different injectable chemical entities, from UCB Pharma GmbH. We are in the process of transferring the manufacturing of these products to our facilities in California, which will require approvals from the UK Medicines and Healthcare products Regulatory Agency before we can relaunch the product candidates.

Business Segments

Our performance is assessed and resources are allocated based on the following two reportable segments: (1) finished pharmaceutical products and (2) API products.  The finished pharmaceutical products segment currently manufactures, markets and distributes enoxaparin, naloxone, phytonadione, lidocaine, as well as various other critical and non-critical care drugs. The API segment currently manufactures and distributes RHI API and porcine insulin API. Information reported herein is consistent with how it is reviewed and evaluated by our chief operating decision maker. Factors used to identify our segments include markets, customers and products.

For more information regarding our segments, see “Part I – Item 1. Financial Statements – Notes to Condensed Consolidated Financial Statements – Segment Reporting.”

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Results of Operations

Three Months Ended March 31, 2018 Compared to Three Months Ended March 31, 2017

Net revenues

	Three Months Ended
	March 31,						Change
	2018			2017			Dollars		%
	(in thousands)
Net revenues
Finished pharmaceutical products	$	53,117		$	55,934		$	(2,817)	(5)	%
API		5,276			736			4,540	617	%
Total net revenues	$	58,393		$	56,670		$	1,723	3	%
Cost of revenues
Finished pharmaceutical products	$	33,392		$	31,624		$	1,768	6	%
API		7,940			2,218			5,722	258	%
Total cost of revenues	$	41,332		$	33,842		$	7,490	22	%
Gross profit	$	17,061		$	22,828		$	(5,767)	(25)	%
as % of net revenues		29	%		40	%

The decrease in net revenues of the finished pharmaceutical products for the three months ended March 31, 2018, was primarily due to the following changes:

	Three Months Ended
	March 31,				Change
	2018		2017		Dollars		%
	(in thousands)
Finished pharmaceutical products net revenues
Lidocaine	$	9,782	$	8,289	$	1,493	18	%
Phytonadione		9,181		7,886		1,295	16	%
Naloxone		8,927		10,939		(2,012)	(18)	%
Enoxaparin		7,007		10,410		(3,403)	(33)	%
Epinephrine		3,223		9,574		(6,351)	(66)	%
Medroxyprogesterone		2,706		—		2,706	N/A
Other finished pharmaceutical products		12,291		8,836		3,455	39	%
Total finished pharmaceutical products net revenues	$	53,117	$	55,934	$	(2,817)	(5)	%

In January 2018, we launched Medroxyprogesterone Acetate in a vial form, and in February 2018, we launched Medroxyprogesterone Acetate in a pre-filled syringe form. These were both approved by the FDA in November 2017.

The decrease in sales of enoxaparin was driven by lower unit volumes, which resulted in a decrease of approximately $2.0 million, as well as lower average selling prices, which resulted in a decrease of approximately $1.4 million. We expect that the average selling price and unit volumes of enoxaparin will continue to fluctuate in the near term as a result of competition.

The decrease in sales of naloxone was primarily driven by lower unit volumes. We anticipate that sales of this product may fluctuate due to increased competition driven by future competitor launches.

Higher unit volumes of lidocaine led to an increase in sales of approximately $0.9 million, while higher average selling price caused an increase in sales of approximately $0.6 million. The increase in sales of phytonadione was primarily driven by higher average selling price. Sales of epinephrine decreased primarily as a result of the discontinuation of our epinephrine injection, USP vial product in the second quarter of 2017 in accordance with the FDA’s request. Our epinephrine injection, USP vial product, was marketed under the “grandfather” exception to the FDA’s “Prescription

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Drug Wrap-Up” program. In fiscal 2017, we recognized $17.8 million in net revenues for the sale of the discontinued vial product. The remainder of our epinephrine sales was from the pre-filled syringe, which remains on the market.

Sales of RHI API increased primarily due to the timing of customer purchases. We anticipate that sales of insulin API will continue to fluctuate and will likely decrease due to the inherent uncertainties related to sales to MannKind. In addition, most of our API sales are denominated in Euros, and the fluctuation in the value of the Euro versus the dollar has had, and will continue to have, an impact on API sales revenues in the near term.

A significant portion of our customer shipments in any period relate to orders received and shipped in the same period, generally resulting in low product backlog relative to total shipments at any time. We had a backlog of approximately $1.5 million as of March 31, 2018, primarily related to the timing of customer orders and fulfillment. Our backlog is generally not a meaningful indicator in any given period of our ability to achieve any particular level of overall revenue or financial performance.

Cost of revenues

Changes in cost of revenues and the resulting gross margins decline were primarily due to increased production expenses, lower sales of naloxone, and the discontinuation of our epinephrine injection, USP vial product in the second quarter of 2017. Production expenses increased due to lower productivity at the U.S. facilities as we are in the process of increasing production of newly launched products and increased labor costs resulting from the implementation of new quality standards and increased hourly rates. This trend was partially offset by the sales of medroxyprogesterone acetate which was launched in January 2018. For the three months ended March 31, 2018, a charge of $1.9 million was recorded to adjust certain inventory items and related purchase commitments to their net realizable value, including $1.2 million for enoxaparin items.

The cost of heparin, which is the starting material for enoxaparin, has increased and is expected to increase further, putting downward pressure on our gross margins. However, we believe that this trend will be offset by sales of our higher-margin products, such as medroxyprogesterone acetate and neostigmine that were recently launched, and sodium nitroprusside which we plan to launch.

Selling, distribution and marketing, and general and administrative

	Three Months Ended
	2018		2017		Dollars		%
	(in thousands)
Selling, distribution, and marketing	$	1,721	$	1,479	$	242	16	%
General and administrative	$	10,998	$	11,338	$	(340)	(3)	%

The increase in selling, distribution and marketing expenses is due to increased freight costs and increased expenses at the ANP business. The decrease in general and administrative expense was primarily due to lower legal expenses compared to the same period in 2017 (see Note 17 to the condensed consolidated financial statements for more information regarding litigation matters). 

We expect that general and administrative expenses will increase on an annual basis due to increased costs associated with ongoing compliance with public company reporting obligations.

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Research and development

	Three Months Ended
	March 31,				Change
	2018		2017		Dollars		%
	(in thousands)
Salaries and personnel-related expenses	$	4,085	$	3,980	$	105	3	%
Pre-launch inventory		738		711		27	4	%
Clinical trials		808		835		(27)	(3)	%
FDA fees		1,226		15		1,211	8,073	%
Testing, operating and lab supplies		4,771		3,756		1,015	27	%
Depreciation		1,220		1,074		146	14	%
Other expenses		1,412		879		533	61	%
Total research and development expenses	$	14,260	$	11,250	$	3,010	27	%

Research and development costs consist primarily of costs associated with the research and development of our product candidates, such as salaries and other personnel related expenses for employees involved with research and development activities, manufacturing pre-launch inventory, clinical trials, FDA fees, testing, operating and lab supplies, depreciation and other related expenses. We expense research and development costs as incurred.

Testing, operating and lab supplies increased due to expenditures on materials for our pipeline products, particularly production of APIs for our pipeline at our ANP facility. FDA fees increased due to the NDA filing fee for a product we currently market under the grandfather exception.

We have made, and expect to continue to make, substantial investments in research and development to expand our product portfolio and grow our business. These costs will fluctuate significantly from quarter to quarter based on the timing of various clinical trials, the pre-launch costs associated with new products, and FDA filing fees. As we undertake new and challenging research and development projects, we anticipate that the associated costs will increase significantly over the next several quarters and years.

Gain on sale of intangible assets

	Three Months Ended
	March 31,				Change
	2018		2017		Dollars		%
	(in thousands)
Gain on sale of intangible assets	$	—	$	(2,643)	$	2,643	(100)	%

In February 2017, we sold the ANDAs that we acquired in March 2016 and recognized a gain of $2.6 million (see Note 8).

Provision for income tax expense (benefit)

	Three Months Ended
	March 31,						Change
	2018			2017			Dollars		%
	(in thousands)
Income tax expense (benefit)	$	(1,784)		$	611		$	(2,395)	NM
Effective tax rate		20	%		41	%

The decrease in the effective tax rate for the three months ended March 31, 2018, was primarily due to the Tax Cuts and Jobs Act, or the Tax Act, which was enacted on December 22, 2017. The Act reduces the statutory U.S. federal corporate income tax rate from 35% to 21%. 

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Liquidity and Capital Resources

Cash Requirements and Sources

We need capital resources to maintain and expand our business. We expect our cash requirements to increase significantly in the foreseeable future as we sponsor clinical trials for, seek regulatory approvals of, and develop, manufacture and market our current development‑stage product candidates and pursue strategic acquisitions of businesses or assets. Our future capital expenditures include projects to upgrade, expand and improve our manufacturing facilities in the United States, China and France. Our cash obligations include the principal and interest payments due on our existing loans and lease payments, as described below and throughout this Quarterly Report on Form 10-Q. As of March 31, 2018, our foreign subsidiaries collectively held $12.4 million in cash and cash equivalents. Cash or cash equivalents held at foreign subsidiaries are not available to fund the parent company’s operations in the United States. We believe that our cash reserves, operating cash flows, and borrowing availability under our credit facilities will be sufficient to fund our operations for at least the next 12 months. We expect additional cash flows to be generated in the longer term from future product introductions, although there can be no assurance as to the receipt of regulatory approval for any product candidates that we are developing or the timing of any product introductions, which could be lengthy or ultimately unsuccessful.

We maintain a shelf registration statement on Form S-3 pursuant to which we may, from time to time, sell up to an aggregate of $250 million of our common stock, preferred stock, depositary shares, warrants, units, or debt securities. If we require or elect to seek additional capital through debt or equity financing in the future, we may not be able to raise capital on terms acceptable to us or at all. To the extent we raise additional capital through the sale of equity or convertible debt securities, the issuance of such securities will result in dilution to our stockholders. If we are required and unable to raise additional capital when desired, our business, operating results and financial condition may be adversely affected.

Working capital decreased $19.1 million to $101.5 million at March 31, 2018, compared to $120.6 million at December 31, 2017.

Cash Flows from Operations

The following table summarizes our cash flows used in operating, investing, and financing activities for the three months ended March 31, 2018:

	Three Months Ended
	March 31, 2018
	(in thousands)
Statement of Cash Flow Data:
Net cash provided by (used in)
Operating activities	$	8,360
Investing activities		(8,738)
Financing activities		(10,828)
Effect of exchange rate changes on cash		159
Net decrease in cash, cash equivalents, and restricted cash	$	(11,047)

Sources and Use of Cash

Operating Activities

Net cash provided by operating activities was $8.4 million for the three months ended March 31, 2018, which included net loss of $7.2 million. Non-cash items were comprised of $3.9 million of depreciation and amortization, and $4.7 million of share-based compensation expense. Operating assets and liabilities changed primarily due to the timing of sales and purchases activities in the normal course of business and the timing of the related cash receipts and disbursements.

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Investing Activities

Net cash used in investing activities was $8.7 million for the three months ended March 31, 2018, primarily as a result of $12.3 million in purchases of property, machinery, and equipment, which included $3.3 million incurred in the United States, $5.4 million in France, and $3.6 million in China. The cash used was partially offset by the $4.4 million receipt of the remaining consideration of the sale of the various ANDAs in February 2017 (see Note 8 to the condensed consolidated financial statements for more information).

Financing Activities

Net cash used in financing activities was $10.8 million for the three months ended March 31, 2018, primarily as a result of $7.6 million used to purchase treasury stock and $1.8 million of net proceeds used to settle share-based compensation awards under our equity plans. Additionally, we made $1.4 million in principal payments on our long-term debt.

Indebtedness

For more information regarding our outstanding indebtedness, see “Part I – Item 1. Financial Statements – Notes to Consolidated Financial Statements – Debt”.

Contractual Obligations

There have been no material changes outside the ordinary course of our business in the contractual obligations disclosed in our Annual Report on Form 10-K for the year ended December 31, 2017, except that our outstanding debt obligations have changed as follows:

	March 31,		December 31,
	2018		2017		Change
	(in thousands)
Short-term debt and current portion of long-term debt	$	6,061	$	6,312	$	(251)
Long-term debt		39,706		40,844		(1,138)
Total debt	$	45,767	$	47,156	$	(1,389)

As of March 31, 2018, we had $43.0 million in unused borrowing capacity under revolving lines of credit with Cathay Bank and East West Bank.

Critical Accounting Polices

The preparation of our condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and the notes to the financial statements. Some of those judgments can be subjective and complex, and therefore, actual results could differ materially from those estimates under different assumptions or conditions. A summary of our critical accounting policies is presented in Part II, Item 7, of our Annual Report on Form 10-K for the year ended December 31, 2017.

There were no material changes to our critical accounting policies during the three months ended March 31, 2018, other than the adoption of ASC 606, Revenue from Contracts with Customers, or ASC 606, using the modified retrospective transition method. The adoption of ASC 606 did not have a material impact on the Company’s revenue recognition or on the condensed consolidated financial statements and related disclosures. The results for the reporting period beginning after January 1, 2018, are presented in accordance with the new standard, although comparative information has not been restated and continues to be reported under the accounting standards and policies in effect for those periods.

Recent Accounting Pronouncements

For information regarding recent accounting pronouncements, see “Part I – Item 1. Financial Statements – Notes to Consolidated Financial Statements – Summary of Significant Accounting Policies”.

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Off-Balance Sheet Arrangements

We do not have any relationships or financial partnerships with unconsolidated entities, 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. In addition, we do not engage in trading activities involving non-exchange traded contracts.

Government Regulation

Our products and facilities are subject to regulation by a number of federal and state governmental agencies. The Food and Drug Administration, or FDA, in particular, maintains oversight of the formulation, manufacture, distribution, packaging, and labeling of all of our products.  The Drug Enforcement Administration maintains oversight over our products that are considered controlled substances.

From April 19, 2018 to April 27, 2018, two contract laboratories that provide testing services for heparin sodium raw materials were inspected. The first inspection was for the laboratory providing testing services for our current heparin supplier. There was one Form 483 observation issued. The current heparin supplier plans to respond to the minor Form 483 within the required 15 working days and we expect the response to satisfy the requirements of the FDA and that no further actions will be necessary.  The second inspection was for the laboratory providing testing services of heparin sodium for the pending submission for our facility in Nanjing China. These vendors are related to our filing for the heparin sodium. There were no Form 483 observations issued. The inspections covered compliance with Good Laboratory Practice regarding the analytical testing performed for heparin sodium release. 

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

The following discussion provides forward-looking quantitative and qualitative information about our potential exposure to market risk. Market risk represents the potential loss arising from adverse changes in the value of financial instruments. The risk of loss is assessed based on the likelihood of adverse changes in fair values, cash flows or future earnings. We are exposed to market risk for changes in the market values of our investments (Investment Risk), the impact of interest rate changes (Interest Rate Risk), and the impact of foreign currency exchange changes (Foreign Currency Exchange Risk).

Investment Risk

We regularly review the carrying value of our investments and identify and recognize losses, for income statement purposes, when events and circumstances indicate that any declines in the fair values of such investments below our accounting basis are other than temporary. As of March 31, 2018, we did not have any such investments.

As of March 31, 2018, we had $5.2 million deposited in six banks located in China, $7.1 million deposited in one bank located in France, and $0.1 million deposited in one bank located in the United Kingdom. We also maintained $35.7 million in cash equivalents that include money market accounts as of March 31, 2018. The remaining amounts of our cash equivalent as of March 31, 2018, are in non-interest bearing accounts.

Interest Rate Risk

Our primary exposure to market risk is interest‑rate‑sensitive investments and credit facilities, which are affected by changes in the general level of U.S. interest rates. Due to the nature of our short-term investments, we believe that we are not subject to any material interest rate risk with respect to our short-term investments.

As of March 31, 2018, we had $45.8 million in long-term debt and capital leases outstanding. Of this amount, $14.6 million had variable interest rates which were not locked-in through fixed interest rate swap contracts. The debt with variable interest rate exposure had a weighted-average interest rate of 4.8% at March 31, 2018. An increase in the index underlying these rates of 1% (100 basis points) would increase our annual interest expense on the debt with variable interest rate exposure by approximately $0.1 million per year. 

Foreign Currency Exchange Risk

Our finished pharmaceutical products are primarily sold in the U.S. domestic market, and have little exposure to foreign currency price fluctuations. However, as a result of our acquisition of the API manufacturing business in Éragny-sur-Epte, France, we are exposed to market risk related to changes in foreign currency exchange rates. Specifically, our insulin sales contracts are frequently denominated in Euros, which are subject to fluctuations relative to the U.S. Dollar, or USD.  

Our Chinese subsidiary, ANP, maintains its books of record in Chinese Yuan. These books are remeasured into the functional currency of USD, using the current or historical exchange rates. The resulting currency remeasurement adjustments and other transactional foreign exchange gains and losses are reflected in our statement of operations.

Our French subsidiary, AFP, maintains its books of record in Euros. Our U.K. subsidiary, IMS UK, maintains its books of record in Great Britain Pounds. These books are translated to USD at the average exchange rates during the period. Assets and liabilities are translated at the rate of exchange prevailing on the balance sheet date. Equity is translated at the prevailing exchange rate at the date of the equity transactions. Translation adjustments are reflected in stockholders’ equity and are included as a component of other comprehensive income.

We are also exposed to the potential earnings effects from intercompany foreign currency assets and liabilities that arise from normal trade receivables and payables and other intercompany loans.

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We do not undertake hedging transactions to cover our foreign currency exposure. As of March 31, 2018, a 10% unfavorable change in the exchange rate of the U.S. dollar strengthening against the foreign currencies to which we have exposure would result in approximately $1.8 million reduction of foreign currency gains, and approximately $5.2 million reduction in other comprehensive income.

As of March 31, 2018, our foreign subsidiaries had cash balances denominated in foreign currencies in the amount of $8.2 million. 

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Our management, under the supervision and with the participation of our Chief Executive Officer and our Chief Financial Officer, our principal executive and principal financial officers, respectively, conducted an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act of 1934, as amended, as of the end of the period covered by this Quarterly Report on Form 10-Q. Based on this evaluation, our Chief Executive Officer and our Chief Financial Officer have concluded that our disclosure controls and procedures were effective (a) to ensure that information that we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms and (b) to include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in reports filed or submitted under the Exchange Act is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting

There have been no changes in our internal control over financial reporting that occurred during the quarter ended March 31, 2018, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act). 

Inherent Limitations of Internal Controls

Our management, including our Chief Executive Officer and Chief Financial Officer, does not expect that our disclosure controls and procedures or our internal controls over financial reporting will prevent or detect all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been detected. These inherent limitations include the realities that judgments in decision-making can be faulty, and that breakdowns can occur because of a simple error or mistake. Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people, or by management overriding of the controls. The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions. Over time, controls may become inadequate because of changes in conditions, or the degree of compliance with the policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

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PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

For information regarding legal proceedings,  see “Part I – Item 1. Financial Statements – Notes to Consolidated Financial Statements – Litigation”.

ITEM 1A. RISK FACTORS

Except as noted below, there were no material changes from the risk factors previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2017, filed with the Securities and Exchange Commission on March 14, 2018. 

Some of our products are marketed without FDA approval and may be subject to enforcement actions by the FDA.

A number of our prescription products are marketed without FDA approval. These products, like many other prescription drugs on the market that FDA has not formally evaluated as being effective, contain active ingredients that were first marketed prior to the enactment of the FFDCA. The FDA has assessed these products in a program known as the “Prescription Drug Wrap-Up” and has stated that these drugs cannot be lawfully marketed unless they comply with certain “grandfather” exceptions to the definition of “new drug” in the FFDCA. These exceptions have been strictly construed by FDA and by the courts, and the FDA has stated that it is unlikely that any of the unapproved prescription drugs on the market, including certain of our drugs, qualify for the exceptions. At any time, the FDA may require that some or all of our unapproved prescription drugs be submitted for approval and may direct that we recall these products and/or cease marketing the products until they are approved. The FDA may also take enforcement actions based on our marketing of these unapproved products, including but not limited to the issuance of an untitled letter or a warning letter, and a judicial action seeking injunction, product seizure and civil or criminal penalties. The enforcement posture could change at any time and our ability to market such drugs could terminate with little or no notice. Moreover, if our competitors seek and obtain approval and market FDA-approved prescription products that compete against our unapproved prescription products, we would be subject to a higher likelihood that FDA may seek to take action against our unapproved products. Such competitors have brought and may bring claims against us alleging unfair competition or related claims.

As a result of our meetings with the FDA in 2009, we decided to discontinue all of our products that were subject to the Prescription Drug Wrap-Up program, with the exception of epinephrine in vial form. These products were all produced at our subsidiary, IMS. During the third quarter of 2010, the FDA requested that we reintroduce several of the withdrawn products to cope with a drug shortage, while we prepared and filed applications for approval of the products. Between August and October, 2010, we reintroduced atropine, calcium chloride, morphine, dextrose, epinephrine prefilled syringes, epinephrine injection, USP vial, and sodium bicarbonate injections.

In February 2017, the FDA requested that we discontinue the manufacturing and distribution of our epinephrine injection, USP vial product, which had been marketed under the “grandfather” exception to the FDA’s “Prescription Drug Wrap-Up” program. We discontinued selling this product in the second quarter of 2017. For the years ended December 31, 2017, 2016, and 2015, we recognized $17.8 million, $18.6 million, and $7.8 million in net revenues for the sale of this product, respectively.

In September 2017, the FDA granted approval of our ANDA for Sodium Bicarbonate injection.

For the years ended December 31, 2017, 2016, 2015, and the three months ended March 31, 2018 and 2017, we recorded net revenues of $35.4 million, $27.6 million, $27.8 million, $11.4 million, and $5.8 million, respectively, from the unapproved products currently on the market: atropine, calcium chloride, morphine, dextrose and epinephrine prefilled syringes. We have filed three ANDAs and one NDA with respect to the remaining unapproved products in order to mitigate all risk associated with the marketing of unapproved drug products. In the interim, we continue to operate within the FDA Compliance Policy Guide, CPG Sec. 440.100 Marketed New Drugs Without Approved NDAs and ANDAs.

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

(c)Issuer Purchases of Equity Securities

The table below provides information with respect to repurchases of our common stock.

				Total Number of Shares	Maximum Number of
		Average		Purchased as Part of	Shares that May Yet Be
	Total Number of Shares	Price Paid		Publicly Announced Plans	Purchased Under the Plans
Period	Purchased (1)	per Share		or Programs	or Programs
January 1 – January 31, 2018	128,056	$	18.72	128,056	—
February 1 – February 28, 2018	148,942		18.50	148,942	—
March 1 – March 31, 2018	130,606		18.83	130,606	—

⁽¹⁾ During the first quarter of 2018, we repurchased shares of our common stock as part of the share buyback program authorized by our Board of Directors on August 7, 2017.  As of March 31, 2018, $1.5 million remained available under such program.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

Not applicable.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

Not applicable.

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ITEM 6. EXHIBITS

Exhibit No.	Description
31.1	Certification of Chief Executive Officer pursuant to Rules 13a-14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of Chief Financial Officer pursuant to Rules 13a-14(a) and 15d-14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1#	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2#	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definitions Linkbase Document

#   The information in Exhibits 32.1 and 32.2 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act (including this Report), unless the Registrant specifically incorporates the foregoing information into those documents by reference.

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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.

	AMPHASTAR PHARMACEUTICALS, INC. (Registrant)
By:	/s/ JACK Y. ZHANG
	Jack Y. Zhang
	Chief Executive Officer (Principal Executive Officer)

Date: May 10, 2018

	AMPHASTAR PHARMACEUTICALS, INC. (Registrant)
By:	/s/ WILLIAM J. PETERS
	William J. Peters
	Chief Financial Officer (Principal Financial and Accounting Officer)

Date: May 10, 2018

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EX-31.1

Exhibit 31.1

Certification

I, Jack Y. Zhang, Ph.D., certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Amphastar Pharmaceuticals, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:  May 10, 2018	By:	/s/ JACK Y. ZHANG
		Jack Y. Zhang
		Chief Executive Officer
		(Principal Executive Officer)

EX-31.2

Exhibit 31.2

Certification

I, William J. Peters, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Amphastar Pharmaceuticals, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: May 10, 2018	By:	/s/ WILLIAM J. PETERS
		William J. Peters
		Chief Financial Officer
		(Principal Financial and Accounting Officer)

EX-32.1

Exhibit 32.1

Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted

pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

The undersigned officer of Amphastar Pharmaceuticals, Inc. (the “Company”), hereby certifies, to the best of such officer’s knowledge, that:

(i) the Quarterly Report on Form 10-Q of the Company for the quarter ended March 31, 2018 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company at the dates and for the periods indicated.

Date: May 10, 2018	By:	/s/ JACK Y. ZHANG
		Jack Y. Zhang
		Chief Executive Officer
		(Principal Executive Officer)

The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. §1350, and is not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and is not to be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

EX-32.2

Exhibit 32.2

Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted

pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

The undersigned officer of Amphastar Pharmaceuticals, Inc. (the “Company”), hereby certifies, to the best of such officer’s knowledge, that:

(i) the Quarterly Report on Form 10-Q of the Company for the quarter ended March 31, 2018 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 and

(ii) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company at the dates and for the periods indicated.

Date: May 10, 2018	By:	/s/ WILLIAM J. PETERS
		William J. Peters
		Chief Financial Officer
		(Principal Financial and Accounting Officer)

The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. §1350, and is not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and is not to be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

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Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2018	May 03, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	Amphastar Pharmaceuticals, Inc.
Trading Symbol	amph
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Entity Central Index Key	0001297184
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Entity Common Stock, Shares Outstanding		46,614,060

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 54,547	$ 65,594
Short-term investments	2,826	2,635
Restricted cash and short-term investments	4,155	4,155
Accounts receivable, net	31,883	35,996
Inventories	62,780	63,609
Income tax refunds and deposits	12,194	6,036
Prepaid expenses and other assets	5,661	9,753
Total current assets	174,046	187,778
Property, plant, and equipment, net	191,915	185,339
Goodwill and intangible assets, net	44,850	45,140
Other assets	10,714	8,663
Deferred tax assets	28,257	27,745
Total assets	449,782	454,665
Current Liabilities:
Accounts payable and accrued liabilities	58,498	57,555
Income taxes payable	7,983	3,325
Current portion of long-term debt and capital leases	6,061	6,312
Total current liabilities	72,542	67,192
Long-term reserve for income tax liabilities	879	879
Long-term debt and capital leases, net of current portion	39,706	40,844
Deferred tax liabilities	1,425	1,361
Other long-term liabilities	8,126	7,060
Total liabilities	122,678	117,336
Stockholders’ equity:
Preferred stock: par value $0.0001; 20,000,000 shares authorized; no shares issued and outstanding
Common stock: par value $0.0001; 300,000,000 shares authorized; 50,471,687 and 46,656,793 shares issued and outstanding as of March 31, 2018 and 50,039,212 and 46,623,581 shares issued and outstanding as of December 31, 2017, respectively	5	5
Additional paid-in capital	316,665	313,891
Retained earnings	69,570	76,235
Accumulated other comprehensive loss	(910)	(2,100)
Treasury stock	(58,226)	(50,702)
Total stockholders’ equity	327,104	337,329
Total liabilities and stockholders’ equity	$ 449,782	$ 454,665

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
CONDENSED CONSOLIDATED BALANCE SHEETS
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	20,000,000	20,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock; shares authorized	300,000,000	300,000,000
Common stock; shares issued	50,471,687	50,039,212
Common stock; shares outstanding	46,656,793	46,623,581

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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Net revenues	$ 58,393	$ 56,670
Cost of revenues	41,332	33,842
Gross profit	17,061	22,828
Operating (income) expenses:
Selling, distribution, and marketing	1,721	1,479
General and administrative	10,998	11,338
Research and development	14,260	11,250
Gain on sale of intangible assets		(2,643)
Total operating expenses	26,979	21,424
Income (loss) from operations	(9,918)	1,404
Non-operating income (expenses):
Interest income	124	91
Interest expense	(18)	(191)
Other income (expenses), net	782	200
Total non-operating income (expenses), net	888	100
Income (loss) before income taxes	(9,030)	1,504
Income tax expense (benefit)	(1,784)	611
Net income (loss)	$ (7,246)	$ 893
Net income (loss) per share:
Basic (in Dollars per share)	$ (0.16)	$ 0.02
Diluted (in Dollars per share)	$ (0.16)	$ 0.02
Weighted-average shares used to compute net income (loss) per share:
Basic (in Shares)	46,514	46,069
Diluted (in Shares)	46,514	48,057

XML

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ (7,246)	$ 893
Other comprehensive income (loss), net of income taxes
Foreign currency translation adjustment	1,190	466
Total other comprehensive income (loss)	1,190	466
Total comprehensive income (loss)	$ (6,056)	$ 1,359

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows From Operating Activities:
Net income (loss)	$ (7,246)	$ 893
Reconciliation to net cash provided by operating activities:
Loss (gain) on disposal and impairment of long-lived assets	598	(2,643)
Depreciation of property, plant, and equipment	3,201	3,100
Amortization of product rights, trademarks, and patents	729	721
Share-based compensation	4,666	4,451
Changes in operating assets and liabilities:
Accounts receivable, net	4,635	920
Inventories	1,441	1,891
Prepaid expenses and other assets	(761)	344
Income tax refund, deposits, and payable	(1,761)	394
Accounts payable and accrued liabilities	2,858	12,327
Net cash provided by operating activities	8,360	22,398
Cash Flows From Investing Activities:
Purchases and construction of property, plant, and equipment	(12,340)	(7,267)
Sale of intangible assets	4,400	1,000
Purchase of short-term investments	(201)	(1,564)
Maturity of short-term investments		1,345
Payment of deposits and other assets	(597)	521
Net cash used in investing activities	(8,738)	(5,965)
Cash Flows From Financing Activities:
Proceeds from equity plans, net of withholding tax payments	(1,793)	(2,173)
Purchase of treasury stock	(7,624)	(8,203)
Principal payments on long-term debt	(1,411)	(1,342)
Net cash provided by (used in) financing activities	(10,828)	(11,718)
Effect of exchange rate changes on cash	159	(174)
Net increase (decrease) in cash, cash equivalents and restricted cash	(11,047)	4,541
Cash, cash equivalents, and restricted cash at beginning of period	67,459	72,354
Cash, cash equivalents, and restricted cash at end of period	56,412	76,895
Supplemental Disclosures of Cash Flow Information:
Interest paid, net of capitalized interest	532	390
Income taxes paid	$ 8	$ 440

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General

3 Months Ended

Mar. 31, 2018

General

General

Note 1.  General

Amphastar Pharmaceuticals, Inc., a California corporation, was incorporated on February 29, 1996 and merged with and into Amphastar Pharmaceuticals, Inc., a Delaware corporation, in July 2004 (together with its subsidiaries, hereinafter referred to as “the Company”). The Company is a specialty pharmaceutical company that primarily develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products, including products with high technical barriers to market entry. Additionally, the Company sells insulin active pharmaceutical ingredient, or API, products.  Most of the Company’s products are used in hospital or urgent care clinical settings and are primarily contracted and distributed through group purchasing organizations and drug wholesalers. The Company’s insulin API products are sold to other pharmaceutical companies for use in their own products and are being used by the Company in the development of injectable finished pharmaceutical products.  The Company’s inhalation products will be primarily distributed through drug retailers if they are approved and brought to market.

The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements of the Company for the year ended December 31, 2017 and the notes thereto as filed with the Securities and Exchange Commission, or SEC, in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with generally accepted accounting principles, or GAAP, have been condensed or omitted from the accompanying condensed consolidated financial statements. The accompanying year-end condensed consolidated balance sheet was derived from the audited financial statements. The accompanying interim financial statements are unaudited, but reflect all adjustments which are, in the opinion of management, necessary for a fair statement of the Company’s consolidated financial position, results of operations, comprehensive income (loss) and cash flows for the periods presented. Unless otherwise noted, all such adjustments are of a normal, recurring nature. The Company’s results of operations, comprehensive income (loss) and cash flows for the interim periods are not necessarily indicative of the results of operations and cash flows that it may achieve in future periods.

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2018

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Note 2.  Summary of Significant Accounting Policies

Basis of Presentation

The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, and are prepared in accordance with the requirements of the SEC for interim reporting. Effective January 1, 2018, the Company retrospectively adopted Accounting Standard Update, or ASU, No. 2016-15 Classification of Certain Cash Receipts and Cash Payments. Certain amounts in the prior quarter’s condensed consolidated balance sheet and condensed consolidated statement of cash flows have been reclassified to conform to the current quarter presentation. This reclassification has no impact on net income or cash flows. All significant intercompany activity has been eliminated in the preparation of the condensed consolidated financial statements.In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments (consisting only of normal recurring adjustments) necessary to present fairly the consolidated financial position, results of operations, and cash flows of the Company.

The Company’s subsidiaries include: (1) International Medication Systems, Limited, or IMS, (2) Armstrong Pharmaceuticals, Inc., or Armstrong, (3) Amphastar Nanjing Pharmaceuticals Inc., or ANP, (4) Nanjing Letop Fine Chemistry Co., Ltd., or Letop, (5) Nanjing Hanxin Medical Technology Co., Ltd., or Hanxin, (6) Nanjing Baixin Trading Co., Ltd., or Baixin, (7) Amphastar France Pharmaceuticals, S.A.S., or AFP, (8) Amphastar UK Ltd., or AUK, and (9) International Medication Systems (UK) Limited, or IMS UK.

Use of Estimates

The preparation of condensed consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates. The principal accounting estimates include determination of allowances for doubtful accounts and discounts, provision for chargebacks and rebates, provision for product returns, adjustment of inventory to their net realizable values, impairment of long-lived and intangible assets and goodwill, self-insured claims, workers’ compensation liabilities, litigation reserves, stock price volatilities for share-based compensation expense, valuation allowances for deferred tax assets, and liabilities for uncertain income tax positions.

Foreign Currency

The functional currency of the Company, its domestic subsidiaries, its Chinese subsidiary, ANP, and its U.K. subsidiary, AUK, is the U.S. dollar, or USD. ANP maintains its books of record in Chinese Yuan. These books are remeasured into the functional currency of USD using the current or historical exchange rates. The resulting currency remeasurement adjustments and other transactional foreign currency exchange gains and losses are reflected in the Company’s statements of operations. 

The Company’s French subsidiary, AFP, maintains its book of record in Euros. Its other Chinese subsidiaries maintain their books of record in Chinese Yuan. Its U.K. subsidiary IMS UK, maintains its book of record in Great Britain Pounds. These local currencies have been determined to be the subsidiaries’ respective functional currencies. These books of record are translated into USD using average exchange rates during the period.  Assets and liabilities are translated at the rate of exchange prevailing on the balance sheet date. Equity is translated at the prevailing rate of exchange at the date of the equity transactions. Translation adjustments are reflected in stockholders’ equity and are included as a component of other accumulated comprehensive income (loss). The unrealized gains or losses of intercompany foreign currency transactions that are of a long-term investment nature are reported in other accumulated comprehensive income (loss). The unrealized gains of intercompany foreign currency transactions that are of a long-term investment nature for the three months ended March 31, 2018 and 2017 were $0.9 million, and a $0.5 million, respectively. 

Additionally, the Company does not undertake hedging transactions to cover its foreign currency exposure.

Comprehensive Income (loss)

For the three months ended March 31, 2018 and 2017, the Company included its foreign currency translation gain or loss as part of its comprehensive income (loss). Income tax expense of $0.3 million was allocated to other comprehensive income (loss) for the three months ended March 31, 2018. There was no material income tax expense (benefit) allocated to other comprehensive income (loss) for the three months ended March 31, 2017.

Restricted Cash and Short-term Investments

Restricted cash and short-term investments are collateral required for the Company to effect a standby letter of credit and to qualify for workers’ compensation self-insurance and are available to meet the Company’s workers’ compensation obligations on a current basis, as needed. As of March 31, 2018 and December 31, 2017, restricted cash and short-term investments include $1.9 million in cash and $2.3 million in certificates of deposit, respectively. The certificates of deposit have original maturities greater than three months and are classified as short-term investments.

Financial Instruments

The carrying amounts of cash and cash equivalents, short-term investments, restricted cash and short-term investments, accounts receivable, accounts payable, accrued expenses, and short-term borrowings approximate fair value due to the short maturity of these items. The majority of the Company’s long-term obligations consist of variable rate debt, and their carrying value approximates fair value as the stated borrowing rates are comparable to rates currently offered to the Company for instruments with similar maturities. However, the Company has one fixed-rate, long-term mortgage for which the carrying value differs from the fair value and is not remeasured on a recurring basis (see Note 12). The Company at times enters into fixed interest rate swap contracts to exchange the variable interest rates for fixed interest rates without the exchange of the underlying notional debt amounts. Such interest rate swap contracts are recorded at their fair values.

Deferred Income Taxes

The Company utilizes the liability method of accounting for income taxes, under which deferred taxes are determined based on the temporary differences between the financial statements and the tax basis of assets and liabilities using enacted tax rates. A valuation allowance is recorded when it is more likely than not that the deferred tax assets will not be realized. At March 31, 2018, the Company had not completed its accounting for the tax effects of the enactment of the Tax Cuts and Jobs Act of 2017, or the Tax Act.

Business Combinations

If an acquired set of activities and assets is capable of being operated as a business consisting of inputs and processes from the viewpoint of a market participant, the asset acquired and liabilities assumed are a business. Business combinations are accounted for using the acquisition method of accounting, which requires an acquirer to recognize the assets acquired and the liabilities assumed at the acquisition date measured at their fair values as of that date. Fair value determinations are based on discounted cash flow analyses or other valuation techniques. In determining the fair value of the assets acquired and liabilities assumed in a material acquisition, the Company may utilize appraisals from third party valuation firms to determine fair values of some or all of the assets acquired and liabilities assumed, or may complete some or all of the valuations internally. In either case, the Company takes full responsibility for the determination of the fair value of the assets acquired and liabilities assumed. The value of goodwill reflects the excess of the fair value of the consideration conveyed to the seller over the fair value of the net assets received.

Acquisition-related costs that the Company incurs to effect a business combination are expensed in the periods in which the costs are incurred. When the operations of the acquired businesses were not material to the Company's condensed consolidated financial statements, no pro forma presentations were disclosed.

Recent Accounting Pronouncements

In February 2016, the FASB issued ASU No. 2016-02 Leases, that is aimed at making leasing activities more transparent and comparable, and which requires substantially all leases be recognized by lessees on their balance sheets as a right-of-use asset and corresponding lease liability, including leases currently accounted for as operating leases. This guidance will become effective for the Company’s interim and annual reporting periods during the year ending December 31, 2019, and all annual and interim reporting periods thereafter. Early adoption is permitted. The Company is required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements for the reporting periods in which the guidance is adopted. While the Company continues to evaluate the provisions of ASC 842 to determine how it will be affected, the primary effect of adopting the new standard will be to record assets and obligations for current operating leases on its consolidated financial statements. Footnote 16 provides details on the Company’s current operating lease arrangements. The adoption of ASC 842 is not expected to have a material impact on the Company’s results of operations or cash flows.

In June 2016, the FASB issued ASU No. 2016-13 Financial Instruments – Credit Losses, which is aimed at providing financial statement users with more useful information about the expected credit losses on financial instruments and other commitments to extend credit. The standard update changes the impairment model for financial assets measured at amortized cost, requiring presentation at the net amount expected to be collected. The measurement of expected credit losses requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. Available-for-sale debt securities with unrealized losses will be recorded through an allowance for credit losses. The guidance is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2020. Early adoption is permitted for interim or annual periods after December 31, 2019. The Company will be required to apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. The Company does not believe the adoption of this accounting guidance will have a material impact on its consolidated financial statements and related disclosures.

In January 2017, the FASB issued ASU No. 2017-04 Simplifying the Test for Goodwill Impairment, which eliminates the requirement to calculate the implied fair value of goodwill. An entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. The update also eliminated the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. An entity is required to disclose the amount of goodwill allocated to each reporting unit with a zero or negative carrying amount of net assets. The guidance is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2020, and applied on a prospective basis. Early adoption is permitted for interim and annual goodwill impairment testing dates after January 1, 2017. The Company currently does not believe that the adoption of this accounting guidance will have a material impact on its consolidated financial statements and related disclosures.

In August 2017, the FASB issued ASU No. 2017-12 Targeted Improvements to Accounting for Hedging Activities, which amends the hedge accounting model in ASC 815 to enable entities to better portray the economics of their risk management activities in the financial statements and enhance the transparency and understandability of hedge results. The amendments also simplify the application of hedge accounting in certain situations. The new guidance is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2019. Early adoption is permitted. The Company does not believe that the adoption of this accounting guidance will have a material impact on its consolidated financial statements and related disclosures.

In February 2018, the FASB issued ASU No. 2018-02 Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which allows entities to reclassify from accumulated other comprehensive income to retained earnings stranded tax effects resulting from the Tax Cuts and Jobs Act of 2017. The guidance is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2019. Early adoption is permitted. The Company does not believe that the adoption of this accounting guidance will have a material impact on its consolidated financial statements and related disclosures.

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Revenue Recognition

3 Months Ended

Mar. 31, 2018

Revenue Recognition

Revenue Recognition

Note 3.  Revenue Recognition

During the quarter ended March 31, 2018, the Company adopted ASC 606, Revenue from Contracts with Customers, or ASC 606, using the modified retrospective transition method. The adoption of ASC 606 did not have a material impact on the Company’s revenue recognition or on the condensed consolidated financial statements and related disclosures.

Subsequent to the adoption of ASC 606, revenue is recognized at the time that the Company’s customers obtain control of the promised goods. Revenues derived from contract manufacturing services are recognized when third-party products are shipped to customers, after the customer has accepted test samples of the products to be shipped.The results for the reporting period beginning after January 1, 2018, are presented in accordance with the new standard, although comparative information continues to be reported under the accounting standards and policies in effect for those periods. For the accounting policy related to revenue recognition for the years ended prior to and on December 31, 2017, see Note 4, Revenue Recognition, to the consolidated financial statements in our Annual Report on Form 10-K for the year ended December 31, 2017.

The Company only records revenue to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved, by estimating and recording reductions to revenue for discounts, product returns, and pricing adjustments, such as wholesaler chargebacks, in the same period that the related revenue is recorded.

Provision for Chargebacks and Rebates

The provision for chargebacks and rebates is a significant estimate used in the recognition of revenue. Wholesaler chargebacks relate to sales terms under which the Company agrees to reimburse wholesalers for differences between the gross sales prices at which the Company sells its products to wholesalers and the actual prices of such products that wholesalers resell them under the Company’s various contractual arrangements with third parties such as hospitals and group purchasing organizations in the United States. Rebates include primarily amounts paid to retailers, payers, and providers in the United States, including those paid to state Medicaid programs, and are based on contractual arrangements or statutory requirements. The Company estimates chargebacks and rebates using the expected value method at the time of sale to wholesalers based on wholesaler inventory stocking levels, historic chargeback and rebate rates, and current contract pricing.

The provision for chargebacks and rebates is reflected in net revenues. The following table is an analysis of the chargeback and rebate provision:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Beginning balance	$	18,470	$	39,709
Provision for chargebacks and rebates		25,334		58,606
Credits and payments issued to third parties		(28,774)		(76,242)
Ending balance	$	15,030	$	22,073

Changes in the chargeback provision from period to period are primarily dependent on the Company’s sales to its wholesalers, the level of inventory held by wholesalers, and the wholesaler’s customer mix. Changes in the rebate provision from period to period are primarily dependent on retailer’s and other indirect customers’ purchases. The approach that the Company uses to estimate chargebacks has been consistently applied for all periods presented. Variations in estimates have been historically small. The Company continually monitors the provision for chargebacks and rebates and makes adjustments when it believes that the actual chargebacks and rebates may differ from the estimates. The settlement of chargebacks and rebates generally occurs within 30 days to 60 dates after the sale to wholesalers. Accounts receivable and/or accounts payable and accrued liabilities are reduced and/or increased by the chargebacks and rebate amounts depending on whether the Company has the right to offset with the customer. Of the provision for chargebacks and rebates as of March 31, 2018 and December 31, 2017, $5.3 million and $6.8 million were included in accounts receivable, net, on the condensed consolidated balance sheets, respectively. The remaining provision of $9.7 million and $11.7 million were included in accounts payable and accrued liabilities, respectively.

Accrual for Product Returns

The Company offers most customers the right to return qualified excess or expired inventory for partial credit; however, API product sales are generally non-returnable.  The Company’s product returns primarily consist of the returns of expired products from sales made in prior periods. Returned products cannot be resold. At the time product revenue is recognized, the Company records an accrual for product returns estimated using the expected value method. The accrual is based, in part, upon the historical relationship of product returns to sales and customer contract terms. The Company also assesses other factors that could affect product returns including market conditions, product obsolescence, and the introduction of new competition. Although these factors do not normally give the Company’s customers the right to return products outside of the regular return policy, the Company realizes that such factors could ultimately lead to increased returns. The Company analyzes these situations on a case-by-case basis and makes adjustments to the product return reserve as appropriate.As of March 31, 2018 and December 31, 2017, cumulative sales of approximately $1.0 million and $1.2 million, respectively, for one of the Company’s products were not recognized in revenues, due to insufficient information available to determine that a significant reversal of such amount will not occur when the uncertainty associated with the return refund is subsequently resolved.

The provision for product returns is reflected in net revenues.  The following table is an analysis of product return liability:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Beginning balance	$	6,522	$	3,143
Provision for product returns		747		1,062
Credits issued to third parties		(498)		(462)
Ending balance	$	6,771	$	3,743

Of the provision of product returns as of March 31, 2018 and December 31, 2017, $4.6 million and $4.1 million were included in accounts payable and accrued liabilities on the condensed consolidated balance sheets, respectively. The remaining provision of $2.2 million and $2.4 million were included in other long-term liabilities, respectively. For the three months ended March 31, 2018 and 2017,  the Company’s aggregate product return rate was 1.3% and 1.1% of qualified sales, respectively.

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Income (Loss) per Share

3 Months Ended

Mar. 31, 2018

Income (Loss) per Share

Income (Loss) per Share

Note 4.  Income (loss) per Share

Basic income (loss) per share is calculated based upon the weighted-average number of shares outstanding during the period. Diluted income (loss) per share gives effect to all potential dilutive shares outstanding during the period, such as stock options, nonvested restricted stock units and shares issuable under the Company’s Employee Stock Purchase Plan, or ESPP.

As the Company reported a net loss for the three months ended March 31, 2018, the diluted net loss per share, as reported, equals the basic net loss per share since the effect of the assumed exercise of stock options, vesting of nonvested RSUs, and issuance of common shares under the Company’s ESPP are anti-dilutive. Total stock options, nonvested RSUs, and shares issuable under the Company’s ESPP excluded from the three months ended March 31, 2018 net loss per share were 11,610,229 stock options; 1,259,273 nonvested RSUs, and 56,128 shares issuable under the ESPP.

For the three months ended March 31, 2017, options to purchase 2,376,234 shares of stock with a weighted-average exercise price of $22.44 per share, were excluded in the computation of diluted net income per share because the effect from the assumed exercise of these options would be anti-dilutive.

The following table provides the calculation of basic and diluted net income (loss) per share for each of the periods presented:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands, except per share data)
Basic and dilutive numerator:
Net income (loss)	$	(7,246)	$	893
Denominator:
Weighted-average shares outstanding — basic		46,514		46,069
Net effect of dilutive securities:
Incremental shares from equity awards		—		1,988
Weighted-average shares outstanding — diluted		46,514		48,057
Net income (loss) per share — basic	$	(0.16)	$	0.02
Net income (loss) per share — diluted	$	(0.16)	$	0.02

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Segment Reporting

3 Months Ended

Mar. 31, 2018

Segment Reporting

Segment Reporting

Note 5.  Segment Reporting

The Company’s business is the development, manufacture, and marketing of pharmaceutical products. The Company has established two reporting segments that each report to the Chief Operating Decision Maker, or CODM, as defined in ASC 280, Segment Reporting.  The Company’s performance is assessed and resources are allocated by the CODM based on the following two reportable segments:

· Finished pharmaceutical products

· Active pharmaceutical ingredients, or API

The finished pharmaceutical products segment manufactures, markets and distributes enoxaparin, naloxone, phytonadione, lidocaine, as well as various other critical and non-critical care drugs.  The API segment manufactures and distributes recombinant human insulin API and porcine insulin API for external customers and internal product development.

Selected financial information by reporting segment is presented below:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Net revenues:
Finished pharmaceutical products	$	53,117	$	55,934
API		5,276		736
Total net revenues		58,393		56,670
Gross profit:
Finished pharmaceutical products		19,725		24,310
API		(2,664)		(1,482)
Total gross profit		17,061		22,828
Operating expenses		26,979		21,424
Income (loss) from operations		(9,918)		1,404
Non-operating income		888		100
Income (loss) before income taxes	$	(9,030)	$	1,504

The Company manages its business segments to the gross profit level and manages its operating and other costs on a company-wide basis. The Company does not identify total assets by segment for internal purposes, as the Company’s CODM does not assess performance, make strategic decisions, or allocate resources based on assets.

The amount of net revenues in the finished pharmaceutical product segment is presented below:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Finished pharmaceutical products net revenues:
Lidocaine	$	9,782	$	8,289
Phytonadione		9,181		7,886
Naloxone		8,927		10,939
Enoxaparin		7,007		10,410
Epinephrine		3,223		9,574
Medroxyprogesterone		2,706		—
Other finished pharmaceutical products		12,291		8,836
Total finished pharmaceutical products net revenues	$	53,117	$	55,934

Discontinuation of epinephrine injection, USP vial product

In February 2017, the U.S. Food and Drug Administration, or FDA, requested the Company to discontinue the manufacturing and distribution of its epinephrine injection, USP vial product, which had been marketed under the “grandfather” exception to the FDA’s “Prescription Drug Wrap-Up” program. The Company discontinued selling this product in the second quarter of 2017. For the year ended December 31, 2017, the Company recognized $17.8 million in net revenues for the sale of this product.

Net revenues and carrying values of long-lived assets of enterprises by geographic regions are as follows:

	Net Revenue				Long-Lived Assets
	Three Months Ended
	March 31,				March 31,		December 31,
	2018		2017		2018		2017
	(in thousands)
United States	$	53,104	$	55,930	$	110,461	$	110,235
China		—		—		43,323		41,078
France		5,289		740		38,131		34,026
United Kingdom		—		—		—		—
Total	$	58,393	$	56,670	$	191,915	$	185,339

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Customer and Supplier Concentration

3 Months Ended

Mar. 31, 2018

Customer and Supplier Concentration

Customer and Supplier Concentration

Note 6.  Customer and Supplier Concentration

Customer Concentrations

Three large wholesale drug distributors, AmerisourceBergen Corporation, or AmerisourceBergen, Cardinal Health, Inc., or Cardinal, and McKesson Corporation, or McKesson, are all distributors of the Company’s products, as well as suppliers of a broad range of health care products. The Company considers these three customers to be its major customers, as each individually, and these customers collectively, represented a significant percentage of the Company’s net revenue for the three months ended March 31, 2018 and 2017 and accounts receivable as of March 31, 2018 and December 31, 2017. The following table provides accounts receivable and net revenue information for these major customers:

	% of Total Accounts				% of Net
	Receivable				Revenue
					Three Months Ended
	March 31,		December 31,		March 31,
	2018		2017		2018		2017
McKesson	22	%	22	%	28	%	26	%
AmerisourceBergen	24	%	33	%	26	%	30	%
Cardinal Health	20	%	12	%	23	%	24	%

Supplier Concentrations

The Company depends on suppliers for raw materials, active pharmaceutical ingredients, and other components that are subject to stringent FDA, requirements. Some of these materials may only be available from one or a limited number of sources. Establishing additional or replacement suppliers for these materials may take a substantial period of time, as suppliers must be approved by the FDA. Furthermore, a significant portion of raw materials may only be available from foreign sources. If the Company is unable to secure, on a timely basis, sufficient quantities of the materials it depends on to manufacture and market its products, it could have a materially adverse effect on the Company’s business, financial condition, and results of operations.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2018

Fair Value Measurements

Fair Value Measurements

Note 7.  Fair Value Measurements

The accounting standards of the FASB, define fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants in the principal or most advantageous market for the asset or liability at the measurement date (an exit price). These standards also establish a hierarchy that prioritizes observable and unobservable inputs used in measuring fair value of an asset or liability, as described below:

· Level 1 – Inputs to measure fair value are based on quoted prices (unadjusted) in active markets on identical assets or liabilities;

· Level 2 – Inputs to measure fair value are based on the following: a) quoted prices in active markets on similar assets or liabilities, b) quoted prices for identical or similar instruments in inactive markets, or c) observable (other than quoted prices) or collaborated observable market data used in a pricing model from which the fair value is derived; and

· Level 3 – Inputs to measure fair value are unobservable and the assets or liabilities have little, if any, market activity; these inputs reflect the Company’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities based on best information available in the circumstances.

As of March 31, 2018, cash equivalents include money market accounts. Short-term investments consist of certificates of deposit with original expiration dates within 12 months. These certificates of deposit are carried at amortized cost in the Company’s consolidated balance sheet, which approximates their fair value determined based on Level 2 inputs. The restrictions on restricted cash and short-term investments have a negligible effect on the fair value of these financial assets.

The Company does not hold any Level 2 or Level 3 instruments that are measured for fair value on a recurring basis.

Nonfinancial assets and liabilities are not measured at fair value on a recurring basis but are subject to fair value adjustments in certain circumstances. These items primarily include long-lived assets, goodwill, and intangible assets for which the fair value of assets is determined as part of the related impairment test. As of March 31, 2018 and December 31, 2017, there were no significant adjustments to fair value for nonfinancial assets or liabilities.

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Goodwill and Intangible Assets

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets

Goodwill and Intangible Assets

Note 8.  Goodwill and Intangible Assets

The table below shows the weighted-average life, original cost, accumulated amortization, and net book value by major intangible asset classification:

	Weighted-Average			Accumulated
	Life (Years)	Original Cost		Amortization		Net Book Value
	(in thousands)
Definite-lived intangible assets
Cortrosyn® product rights	12	$	27,134	$	26,688	$	446
IMS (UK) international product rights	10		9,802		1,634		8,168
Patents	12		486		181		305
Land-use rights	39		2,540		436		2,104
Other intangible assets	4		69		50		19
Subtotal	12		40,031		28,989		11,042
Indefinite-lived intangible assets
Trademark	*		29,225		—		29,225
Goodwill - Finished pharmaceutical products	*		4,583		—		4,583
Subtotal	*		33,808		—		33,808
As of March 31, 2018	*	$	73,839	$	28,989	$	44,850

	Weighted-Average			Accumulated
	Life (Years)	Original Cost		Amortization		Net Book Value
	(in thousands)
Definite-lived intangible assets
Cortrosyn® product rights	12	$	27,134	$	26,243	$	891
IMS (UK) international product rights	10		9,440		1,337		8,103
Patents	12		486		170		316
Land-use rights	39		2,540		419		2,121
Other intangible assets	4		69		46		23
Subtotal	12		39,669		28,215		11,454
Indefinite-lived intangible assets
Trademark	*		29,225		—		29,225
Goodwill - Finished pharmaceutical products	*		4,461		—		4,461
Subtotal	*		33,686		—		33,686
As of December 31, 2017	*	$	73,355	$	28,215	$	45,140

*Intangible assets with indefinite lives have an indeterminable average life.

Sale of Fourteen Injectable ANDAs

In March 2016, the Company acquired 14 abbreviated new drug applications, or ANDAs, representing 11 different injectable chemical entities from Hikma Pharmaceuticals PLC, or Hikma. In February 2017, the Company sold the 14 ANDAs to an unrelated party. The consideration included a purchase price of $6.4 million of which the amount of $1.0 million was received upon closing, $1.0 million was received in the second quarter of 2017 and the remaining $4.4 million was received in January 2018. In addition to the purchase price, the purchaser agreed to pay the Company a royalty fee equal to 2% of net sales derived from purchaser’s sales of the products for the period from February 2017 through February 2027. The Company has not recognized any royalty fee revenue. The Company is also subject to a certain indemnification liability payable to the purchaser, which is limited up to $0.6 million. The Company recognized a gain of $2.6 million within operating (income) expenses on its condensed consolidated statement of operations for the three months ended March 31, 2017.

Goodwill

The changes in the carrying amounts of goodwill were as follows:

	March 31,		December 31,
	2018		2017
	(in thousands)
Beginning balance	$	4,461	$	3,976
Currency translation and other adjustments		122		485
Ending balance	$	4,583	$	4,461

Primatene® Trademark

In January 2009, the Company acquired the exclusive rights to the trademark, domain name, website and domestic marketing, distribution and selling rights related to Primatene® Mist, an over-the-counter bronchodilator product, which are recorded at the allocated fair value of $29.2 million, which is its carrying value as of March 31, 2018.

The trademark was determined to have an indefinite life. In determining its indefinite life, the Company considered the following: the expected use of the intangible; the longevity of the brand; the legal, regulatory and contractual provisions that affect their maximum useful life; the Company’s ability to renew or extend the asset’s legal or contractual life without substantial costs; effects of the regulatory environment; expected changes in distribution channels; maintenance expenditures required to obtain the expected future cash flows from the asset; and considerations for obsolescence, demand, competition and other economic factors.

As a result of environmental concerns about Chlorofluorocarbons, or CFCs, the FDA issued a final ruling on January 16, 2009 that required the CFC formulation of its Primatene® Mist product to be phased out by December 31, 2011. The former formulation of Primatene® Mist contained CFCs as a propellant; however, the Company intends to use the trademark for a future version of Primatene® that utilizes hydrofluoroalkane, or HFA, as a propellant.

In 2013, the Company filed a new drug application, or NDA, for Primatene® Mist and received a Prescription Drug User Fee Act date set for May 2014.  In May 2014, the Company received a complete response letter, or CRL, from the FDA, which required additional non-clinical information, label revisions and follow-up studies (label comprehension, behavioral/human factors and actual use) to assess consumers’ ability to use the device correctly to support approval of the product in the over-the-counter setting. The Company submitted a responsive NDA amendment in June 2016 and received a second CRL from the FDA in December 2016, which requires additional packaging and label revisions and follow-up studies to assess consumers’ ability to use the product correctly to support approval in the over-the-counter setting. After several meetings with the FDA in 2017, the Company further revised its packaging and label and plans to perform another human factors study based on such revisions. In November 2017, the Company submitted its proposed protocol to the FDA. In March 2018, the Company received as Advice Letter from the FDA regarding our proposed protocol. Based on that feedback, the Company has conducted an additional human factors study. The Company believes it has received acceptable results from the study, and the Company has resubmitted the NDA. The Company intends to continue to work with the FDA to address their concerns in the CRL and bring Primatene® Mist back to the over-the-counter market. However, there can be no guarantee that any future amendment to the Company’s NDA will result in timely approval of Primatene® Mist or approval at all.

Based on the Company’s filed version of Primatene® Mist, the long history of the Primatene® trademark (marketed since 1963), and the Company’s perpetual rights to the trademark, the nature of the CRL received in December 2016, the plan that the HFA version will be marketed under the same trademark if approved by the FDA, and other factors previously considered, the trademark continues to have an indefinite useful life, and an impairment charge is not required based on the Company’s qualitative assessment as of March 31, 2018.

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Inventories

3 Months Ended

Mar. 31, 2018

Inventories

Inventories

Note  9.  Inventories

Inventories consist of the following:

	March 31,		December 31,
	2018		2017
	(in thousands)
Raw materials and supplies	$	22,272	$	19,973
Work in process		21,796		22,469
Finished goods		18,712		21,167
Total inventories	$	62,780	$	63,609

A charge of $1.9 million and $0.4 million was included in the cost of revenues in the Company’s consolidated statements of operations for the three months ended March 31, 2018 and 2017, respectively, to adjust the Company’s inventory and related firm inventory purchase commitments to their net realizable value.

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Property, Plant, and Equipment

3 Months Ended

Mar. 31, 2018

Property, Plant, and Equipment

Property, Plant, and Equipment

Note 10.  Property, Plant, and Equipment

Property, plant, and equipment consist of the following:

	March 31,		December 31,
	2018		2017
	(in thousands)
Buildings	$	89,579	$	89,124
Leasehold improvements		29,938		29,847
Land		7,148		7,110
Machinery and equipment		120,756		118,056
Furniture, fixtures, and automobiles		17,132		16,385
Construction in progress		63,959		58,145
Total property, plant, and equipment		328,512		318,667
Less accumulated depreciation		(136,597)		(133,328)
Total property, plant, and equipment, net	$	191,915	$	185,339

As of March 31, 2018 and December 31, 2017, the Company had $2.2 million and $2.3 million, respectively, in capitalized manufacturing equipment that is intended to be used specifically for the manufacture of Primatene® Mist. The Company will continue to monitor developments with the FDA as it relates to its Primatene® indefinite lived intangible assets in determining if there is an impairment of these related fixed assets (see Note 8).

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Accounts Payable and Accrued Liabilities

3 Months Ended

Mar. 31, 2018

Accounts Payable and Accrued Liabilities

Accounts Payable and Accrued Liabilities

Note 11.  Accounts Payable and Accrued Liabilities

Accounts payable and accrued liabilities consisted of the following:

	March 31,		December 31,
	2018		2017
	(in thousands)
Accrued customer fees and rebates	$	13,464	$	15,981
Accrued payroll and related benefits		17,774		15,680
Accrued product returns, current portion		4,586		4,133
Other accrued liabilities		7,043		5,132
Total accrued liabilities		42,867		40,926
Accounts payable		15,631		16,629
Total accounts payable and accrued liabilities	$	58,498	$	57,555

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Debt

3 Months Ended

Mar. 31, 2018

Debt

Debt

Note  12.  Debt

Debt consists of the following:

	March 31,		December 31,
	2018		2017
	(in thousands)
Loans with East West Bank
Line of credit facility due December 2018	$	—	$	—
Equipment loan due January 2019		1,283		1,668
Mortgage payable due February 2021		3,556		3,577
Equipment loan due June 2021		3,980		4,286
Equipment line of credit due December 2022		—		—
Mortgage payable due October 2026		3,509		3,524
Mortgage payable due June 2027		8,903		8,936
Loans with Cathay Bank
Line of credit facility due May 2018		—		—
Acquisition loan due April 2019		14,562		15,073
Mortgage payable due August 2027		7,752		7,795
Loans with Seine-Normandie Water Agency
French government loan 1 paid off March 2018		—		17
French government loan 2 due June 2020		88		85
French government loan 3 due July 2021		248		239
Payment Obligation to Merck		599		599
Equipment under Capital Leases		1,287		1,357
Total debt and capital leases		45,767		47,156
Less current portion of long-term debt and capital leases		6,061		6,312
Long-term debt and capital leases, net of current portion	$	39,706	$	40,844

As of March 31, 2018, the fair value of the loans approximates their carrying amount. The interest rate used in the fair value estimation was determined to be a Level 2 input. For certain loans with East West Bank, the Company has entered into fixed interest rate swap contracts to exchange the variable interest rates for fixed interest rates over the life of certain debt instruments without the exchange of the underlying notional debt amount. The interest rate swap contracts do not qualify for hedge accounting and are recorded at fair value based on Level 2 inputs. These swap contacts have an aggregate fair value of $0.4 million and $0.1 million as of March 31, 2018 and December 31, 2017, respectively.  The change in fair value is recorded in other income (expense) in the Company’s condensed consolidated statement of operations.

Covenants

At March 31, 2018 and December 31, 2017, the Company was in compliance with its debt covenants, which include a minimum current ratio, minimum debt service coverage, minimum tangible net worth, maximum debt-to-effective-tangible-net-worth ratio, and minimum deposit requirement, computed on a consolidated basis. The fixed charge coverage ratio and debt service coverage ratio requirements for loans with Cathay Bank were not effective as of December 31, 2017. Such requirements will become effective as of December 31, 2018.

Equipment under Capital Leases

The Company entered into leases for certain equipment under capital leasing arrangements, which will expire at various times through 2022. The cost of equipment under capital leases was $1.6 million and $1.6 million at March 31, 2018 and December 31, 2017, respectively.

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Income Taxes

3 Months Ended

Mar. 31, 2018

Income Taxes

Income Taxes

Note  13.  Income Taxes

The following table sets forth the Company’s income tax provision for the periods indicated:

	Three Months Ended
	March 31,
	2018			2017
	(in thousands)
Income (loss) before taxes	$	(9,030)		$	1,504
Income tax expense (benefit)		(1,784)			611
Net income (loss)	$	(7,246)		$	893
Income tax provision as a percentage of income before income taxes		19.8	%		40.6	%

The decrease in the Company’s effective tax rate for the three months ended March 31, 2018, was primarily due to the Tax Act, which was enacted on December 22, 2017. The Tax Act, among other things, reduces the statutory U.S. federal corporate income tax rate from 35% to 21% and requires companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred. In March 2018, the FASB issued ASU No. 2018-05 to incorporate Staff Accounting Bulletin, or SAB 118, pursuant to which the Company’s final analysis will be completed over a one-year measurement period ending December 22, 2018, and any adjustments during this measurement period will be included in net earnings from continuing operations as an adjustment to income tax expense in the reporting period when such adjustments are determined. During the three month period ended March 31, 2018, the Company has made no changes to the provisional amounts recorded at December 31, 2017. The Company will continue to refine its calculations as additional analysis and changes to certain amounts and estimates are completed and tax returns are filed. The Company’s estimates may also be affected as it gains a more thorough understanding of the tax law.

Effective January 1, 2018, the Company adopted ASU No. 2016-16, Intra-Entity Transfers of Assets Other Than Inventory, pursuant to which the income tax consequences of intra-entity transfer of an asset other than inventory is required to be recognized in the period in which the transfer occurs. The Company adopted the standard on a modified retrospective basis resulting in an increase of deferred tax assets and the beginning balance of retained earnings by $0.5 million, respectively.

Valuation Allowance

In assessing the need for a valuation allowance, management considers whether it is more likely than not that some portion or all of the deferred tax assets will be realized. Ultimately, the realization of deferred tax assets depends on the existence of future taxable income. Management considers sources of taxable income such as income in prior carryback periods, future reversal of existing deferred taxable temporary differences, tax-planning strategies, and projected future taxable income.

The Company has discontinued recognizing AFP income tax benefits by recording a full valuation allowance until it is determined that it is more likely than not that AFP will generate sufficient taxable income to realize its deferred income tax assets.

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Stockholders' Equity

3 Months Ended

Mar. 31, 2018

Stockholders' Equity

Stockholders' Equity

Note  14. Stockholders' Equity

The changes in stockholders’ equity for the three months ended March 31, 2018, consisted of the following:

	Three Months Ended
	March 31,
	2018
	(in thousands)
Stockholders’ equity as of December 31, 2017	$	337,329
Beginning balance adjustment as a result of the adoption of new accounting standards		582
Net loss		(7,246)
Other comprehensive income		1,190
Net proceeds from equity plans		(1,793)
Share-based compensation expense		4,666
Purchase of treasury stock		(7,624)
Stockholders’ equity as of March 31, 2018	$	327,104

Share Buyback Program

Pursuant to the Company’s share buyback program, the Company purchased 407,604 and 532,894 shares of its common stock during the three months ended March 31, 2018 and 2017, totaling $7.6 million and $8.2 million, respectively.

On May 7, 2018, the Company’s Board of Directors authorized an increase of $20.0 million to the Company’s share buyback program, which is expected to continue for an indefinite period of time. The primary goal of the programs is to offset dilution created by the Company’s equity compensation programs.

Purchases are made through open market and private block transactions pursuant to Rule 10b5-1 plans, privately negotiated transactions or other means as determined by the Company’s management and in accordance with the requirements of the SEC. The timing and actual number of shares repurchased will depend on a variety of factors including price, corporate and regulatory requirements, and other conditions. These repurchased shares are accounted for under the cost method and are included as a component of treasury stock in the Company’s consolidated balance sheets. 

The 2015 Equity Incentive Plan

As of March 31, 2018, the Company reserved an aggregate of 4,782,238 shares of common stock for future issuance under the 2015 Equity Incentive Plan, or the 2015 Plan. In January 2018, an additional 1,165,590 shares were reserved under the 2015 Plan pursuant to the evergreen provision.

Share-Based Award Activity and Balances

The Company accounts for share‑based compensation payments in accordance with ASC 718, which requires measurement and recognition of compensation expense at fair value for all share‑based payment awards made to employees and directors. Under these standards, the fair value of option awards and the option components of the Employee Stock Purchase Plan awards are estimated at the grant date using the Black-Scholes option-pricing model. The fair value of RSUs is estimated at the grant date using the Company’s common share price. Non‑vested stock options held by non-employees are revalued at each balance sheet date.The portion that is ultimately expected to vest is amortized and recognized in compensation expense on a straight-line basis over the requisite service period, generally from the grant date to the vesting date.

The weighted-averages for key assumptions used in determining the fair value of options granted during the three months ended March 31, 2018 and 2017, are as follows:

	Three Months Ended
	March 31,
	2018		2017
Average volatility	39.6	%	36.7	%
Risk-free interest rate	2.7	%	2.2	%
Weighted-average expected life in years	5.8		5.7
Dividend yield rate	—	%	—	%

A summary of option activity under all plans for the three months ended March 31, 2018, is presented below:

				Weighted-Average
		Weighted-Average		Remaining	Aggregate
		Exercise		Contractual	Intrinsic
	Options	Price		Term (Years)	Value(1)
					(in thousands)
Outstanding as of December 31, 2017	10,898,701	$	14.65
Options granted	966,026		20.59
Options exercised	(147,508)		12.61
Options cancelled	(106,615)		13.02
Options expired	(375)		14.66
Outstanding as of March 31, 2018	11,610,229	$	15.19	5.02	$	49,844
Exercisable as of March 31, 2018	8,122,678	$	15.07	3.79	$	36,557

⁽¹⁾ The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the estimated fair value of the Company’s common stock for those awards that have an exercise price below the estimated fair value at March 31, 2018.

For the three months ended March 31, 2018 and 2017,  the Company recorded of $2.4 million and $2.0 million, respectively, related to stock options granted to employees under all plans, and expenses of $0.1 million and $0.1 million, respectively, related to stock options granted to the Board of Directors under all plans.  

Information relating to option grants and exercises is as follows:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands, except per share data)
Weighted-average grant date fair value per option share	$	7.94	$	4.87
Intrinsic value of options exercised		1,061		24
Cash received from options exercised		1,861		96
Total fair value of the options vested during the year		6,407		4,781

A summary of the status of the Company’s nonvested options as of March 31, 2018, and changes during the three months ended March 31, 2018, are presented below:

		Weighted-Average
		Grant Date
	Options	Fair Value
Non-vested as of December 31, 2017	4,310,241	$	4.21
Options granted	966,026		7.94
Options vested	(1,682,101)		3.81
Options forfeited	(106,615)		4.77
Non-vested as of March 31, 2018	3,487,551		5.41

As of March 31, 2018, there was $15.6 million of total unrecognized compensation cost, net of forfeitures, related to nonvested stock option based compensation arrangements granted under all plans. The cost is expected to be recognized over a weighted-average period of 2.7 years and will be adjusted for future changes in estimated forfeitures. 

Restricted Stock Units

The Company grants restricted stock units, or RSUs, to certain employees and members of the Board of Directors with a vesting period of up to five years. The grantee receives one share of common stock at a specified future date for each RSU awarded. The RSUs may not be sold or otherwise transferred until certificates of common stock have been issued, recorded, and delivered to the participant. The RSUs do not have any voting or dividend rights prior to the issuance of certificates of the underlying common stock. The share-based expense associated with these grants was based on the Company’s common stock fair value at the time of grant and is amortized over the requisite service period, which generally is the vesting period using the straight-line method. During the three months ended March 31, 2018 and 2017, the Company recorded a total expense of $1.7 million and $2.0 million, respectively, related to RSU awards granted to employees under all plans and expenses of $0.1 million and $0.1 million, respectively, related to RSU awards granted to the Board of Directors.

As of March 31, 2018, there was $17.2 million of total unrecognized compensation cost, net of forfeitures, related to nonvested RSU-based compensation arrangements granted under all plans. The cost is expected to be recognized over a weighted-average period of 2.8 years and will be adjusted for future changes in estimated forfeitures.

Information relating to RSU grants and deliveries is as follows:

		Total Fair Market
		Value of RSUs
		Issued
	Total RSUs	as
	Issued	Compensation(1)
		(in thousands)
RSUs outstanding at December 31, 2017	1,392,781
RSUs granted	387,551	$	7,670
RSUs forfeited	(40,473)
RSUs vested(2)	(480,586)
RSUs outstanding at March 31, 2018	1,259,273

⁽¹⁾ The total fair market value is derived from the number of RSUs granted times the current stock price on the date of grant.

⁽²⁾ Of the vested RSUs, 187,528 shares of common stock were surrendered to fulfil tax withholding obligations.

The Company recorded share-based compensation expense under all plans and is included in the Company’s consolidated statement of operations as follows:

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Cost of revenues	$	1,160	$	1,131
Operating expenses:
Selling, distribution, and marketing		107		84
General and administrative		2,893		2,783
Research and development		506		453
Total share-based compensation	$	4,666	$	4,451

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Employee Benefits

3 Months Ended

Mar. 31, 2018

Employee Benefits

Employee Benefits

Note 15.  Employee Benefits

401(k) Plan

The Company has a defined contribution 401(k) plan, or the Plan, whereby eligible employees voluntarily contribute up to a defined percentage of their annual compensation. The Company matches contributions at a rate of 50% on the first 6% of employee contributions, and pays the administrative costs of the Plan. Employer contributions vest over four years. Total employer contributions for the three months ended March 31, 2018 and 2017, were approximately $0.3 million and $0.3 million, respectively.

Defined Benefit Pension Plan

In connection with the Merck API Transaction, the Company assumed an obligation associated with a defined-benefit plan for eligible employees of AFP.  This plan provides benefits to the employees from the date of retirement and is based on the employee’s length of time employed by the Company.  The calculation is based on a statistical calculation combining a number of factors that include the employee’s age, length of service, and AFP employee turnover rate.

The liability under the plan is based on a discount rate of 1.60% as of March 31, 2018 and December 31, 2017, respectively.  The liability is included in accrued liabilities in the accompanying consolidated balance sheets. The plan is currently unfunded, and the benefit obligation under the plan was $2.3 million and $2.1 million at March 31, 2018 and December 31, 2017, respectively. The Company recorded an immaterial amount of expense under the plan for the three months ended March 31, 2018 and 2017. 

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies

Commitments and Contingencies

Note  16.  Commitments and Contingencies

Supply Agreement with MannKind Corporation

On July 31, 2014, the Company entered into a supply agreement with MannKind Corporation, or MannKind, or the Supply Agreement, pursuant to which the Company agreed to manufacture for and supply to MannKind certain quantities of recombinant human insulin, or RHI API for use in MannKind’s product Afrezza®. In January 2015, the Company entered into a supply option agreement with MannKind, or the Option Agreement, pursuant to which MannKind has the option to purchase additional RHI API. The Supply Agreement and the Option Agreement were subsequently amended in November 2016.  For the year ended December 31, 2017, sales of RHI API to MannKind totaled $3.2 million, which fulfilled the 2017 commitment of RHI API under the amended Supply Agreement.  Under the Option Agreement, the Company recognized the cancellation fee for 2018 of $0.9 million in net revenues in its consolidated statement of operations for the year ended December 31, 2017.

Collaboration Agreements with Medical Device Manufacturers

In August 2014, the Company entered into a collaboration agreement with a medical device manufacturer to develop a drug delivery system to be used by the Company for one of its pipeline products. As of March 31, 2018, the Company has paid an upfront payment of $0.5 million and $1.5 million in milestone payments under this agreement, which were classified as research and development expense as the milestones were met. The Company is obligated to pay up to an additional $0.5 million if certain research and development milestones are met. As of March 31, 2018, no such obligation existed. Pursuant to the collaboration agreement, if the medical device manufacturer is successful in the development of this drug delivery system and the Company’s pipeline products receive appropriate regulatory approval, the Company intends to enter into a commercial supply agreement with such medical device manufacturer for a minimum purchase of 1.0 million units during the first 12 months.

In October 2017, the Company entered into a collaboration agreement with a medical device manufacturer to develop a drug delivery system to be used by the Company for one of its pipeline products for a total of $1.6 million. As of March 31, 2018, the Company has paid an upfront payment of $0.4 million, and is obligated to pay up to an additional $1.2 million, if certain research and development milestones are met. As of March 31, 2018, no such obligation existed for the milestones. In addition, pursuant to the collaboration agreement, if the medical device manufacturer is successful in the development of this drug delivery system and the Company’s pipeline products receive appropriate regulatory approval, the Company intends to enter into a commercial supply agreement with such medical device manufacturer under which the Company is obligated to pay an additional $1.0 million, if certain commercial development milestones are met and to purchase a minimum of 100,000 units per year for three years.

Operating Lease Agreements

The Company leases real and personal property, in the normal course of business, under various non-cancelable operating leases. The Company, at its option, can renew a substantial portion of its leases, at the market rate, for various renewal periods ranging from one to six years. Rental expense under these leases for the three months ended March 31, 2018 and 2017, was approximately $1.0 million and $0.9 million, respectively. 

Purchase Commitments

As of March 31, 2018, the Company has entered into commitments to purchase equipment and raw materials for an aggregate amount of approximately $50.0 million. The Company anticipates that most of these commitments with remaining terms in excess of one year will be fulfilled by 2019. In addition, the Company is obligated to pay a supplier certain payments up to $1.5 million based on the sale of one of the Company’s product.

The Company entered into agreements with a Chinese governmental entity to acquire land-use rights to real property in Nanjing, China. Under the terms of these agreements, the Company committed to invest capital in its wholly-owned subsidiary, ANP, and to develop these properties as an API manufacturing facility for the Company’s pipeline products. In conjunction with these agreements, ANP modified its business license on July 3, 2012, to increase its authorized capital. As of December 31, 2016, the Company had completed its investment of total registered capital commitment of $61.0 million to ANP. This investment in ANP resulted in cash being transferred from the U.S. parent company to ANP.

Per these agreements, in January 2010, the Company acquired certain land-use rights with a carrying value of $1.2 million.  In addition, the Company purchased additional land-use rights in November 2012 for $1.3 million.  The Company committed to spend approximately $15.0 million in land development.  The agreements require the construction of fixed assets on the property and specified a timetable for the construction of these fixed assets. The current pace of development of the property is behind the schedules described in the purchase agreements and, per the purchase agreements, potential monetary penalties could result if the development is delayed or not completed in accordance with the guidelines stated in the purchase agreements.The Company is in discussions with the Chinese government regarding the development and believes that the likelihood of incurring any penalty is remote.

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Litigation

3 Months Ended

Mar. 31, 2018

Litigation

Litigation

Note 17.   Litigation

Enoxaparin Patent Litigation

In September 2011, Momenta Pharmaceuticals, Inc., or Momenta, a Boston‑based pharmaceutical company, and Sandoz Inc., or Sandoz, the generic division of Novartis, initiated litigation against the Company for alleged patent infringement of two patents related to testing methods for batch release of enoxaparin, which the Company refers to as the “‘886 patent” and the “‘466 patent.” The lawsuit was filed in the United States District Court for the District of Massachusetts, or the Massachusetts District Court. In October 2011, the Massachusetts District Court issued a preliminary injunction barring the Company from selling its generic enoxaparin product and also requiring Momenta and Sandoz to post a $100.1 million bond. The preliminary injunction was stayed by the United States Court of Appeals for the Federal Circuit, or the Federal Circuit, in January 2012, and reversed by the Federal Circuit in August 2012.

In January 2013, the Company moved for summary judgment of non‑infringement of both patents. Momenta and Sandoz withdrew their allegations as to the ‘466 patent, and in July 2013, the Massachusetts District Court granted the Company’s motion for summary judgment of non‑infringement of the ‘886 patent and denied Momenta and Sandoz’s motion for leave to amend their infringement contentions. On January 24, 2014, the Massachusetts District Court judge entered final judgment in the Company’s favor on both patents. Momenta and Sandoz also filed a motion to collect attorneys’ fees and costs relating to a discovery motion, which the Massachusetts District Court granted. On May 9, 2016, the Massachusetts District Court issued an order imposing fees and costs of approximately $0.4 million in relation to this discovery motion. This amount has been accrued in the general and administrative expense for the quarter ended March 31, 2016.  On January 30, 2014, Momenta and Sandoz filed a notice of appeal to the Federal Circuit appealing the court’s final judgment including summary judgment denying Momenta and Sandoz’s motion for leave to amend their infringement contentions.

Following appeal briefing filed by the parties, the Federal Circuit held oral argument on May 4, 2015. On November 10, 2015, the Federal Circuit panel affirmed-in-part and vacated-in-part the decision of the Massachusetts District Court granting summary judgment of non-infringement as to the Company, and it remanded the case to the Massachusetts District Court for further proceedings consistent with its opinion. The Federal Circuit panel affirmed the Massachusetts District Court’s holding in the Company’s favor that the Company does not infringe under 35 U.S.C. 271(g), and the panel vacated the grant of summary judgment to the extent it was based on the determination that the Company’s activities fall within the 35 U.S.C. 271(e)(1) safe harbor. The Federal Circuit panel also left to the Massachusetts District Court’s discretion whether to reconsider on remand its denial of leave for Momenta and Sandoz to amend their infringement contentions. On January 11, 2016, the Company filed a Petition for Rehearing En Banc with the Federal Circuit. On February 17, 2016, the Federal Circuit denied the Company’s Petition, and the Federal Circuit issued its mandate on February 24, 2016, whereby the case returned to the Massachusetts District Court for further proceedings. 

On March 18, 2016, the parties filed a joint status report with the Massachusetts District Court. On June 21, 2016, the Massachusetts District Court granted Momenta and Sandoz’s Motion for Leave to Amend its Infringement Contentions. In light of Momenta and Sandoz’s Amended Infringement Contentions and recent changes in Supreme Court precedent since the case was stayed in 2012, the Company sought to amend its Non-Infringement and Invalidity Contentions.

On July 18, 2016, the Company submitted its Motion for Leave to Amend Its Non-Infringement and Invalidity Contentions and Momenta and Sandoz responded on July 25, 2016. In light of the new arguments made in their response, the Company further filed a Motion For Leave to Reply in Further Support of Defendants’ Motion for Leave to Amend Non-Infringement and Invalidity Contentions, which was granted. A hearing was held on August 23, 2016, where the Magistrate Judge ordered the Company to file its proposed amended contentions, which it filed on August 31, 2016. On February 4, 2017, the Magistrate Judge issued an order denying the Company leave to amend its contentions. The Company filed objections to this order with the District Court on February 21, 2017. On April 13, 2017, the District Court rejected the determination of the Magistrate Judge with respect to the Company’s amended non-infringement contentions, and allowed the Company to amend its non-infringement contentions. With respect to the Company’s amended invalidity contentions, the District Court accepted the Magistrate Judge’s determination; however, the District Court specifically stated that the Company can argue changes in law at the summary judgment stage or at trial.

In parallel with the Massachusetts District Court proceedings, the Company appealed the Federal Circuit’s decision to vacate the grant of the Company’s summary judgment to the extent it was based on the determination that the Company’s activities are protected under the Safe Harbor. The Company filed a Petition for a Writ of Certiorari with the Supreme Court on May 17, 2016. Momenta and Sandoz initially waived their right to respond to the petition; however, on May 31, 2016, the Supreme Court requested a response from Momenta and Sandoz. The response from Momenta and Sandoz was initially due on June 30, 2016, but they requested an extension. Momenta and Sandoz filed their response on August 1, 2016. On October 3, 2016, the Supreme Court declined the Petition for a Writ of Certiorari.

Fact discovery in the Massachusetts District Court proceedings closed on November 22, 2016, and the parties proceeded with expert discovery and exchanged opening and rebuttal expert reports. Expert discovery closed on March 24, 2017. On April 14, 2017, Plaintiffs filed a Motion for Summary Judgment seeking to dismiss the Company’s equitable defenses. On April 14, 2017, the Company filed Defendants’ Motion for Summary Judgment of Invalidity and Noninfringement. In the Motion, the Company moved for the District Court to grant summary judgment in favor of the Company on the following issues: (1) the ’886 patent is invalid under 35 U.S.C. § 101 as claiming non-patentable subject matter; (2) the ’886 patent is invalid under 35 U.S.C. § 112 because the claims are indefinite; and (3) the Company’s tests do not infringe the claims of the ’886 patent. Oppositions to the motions for summary judgment were filed on May 5, 2017. Replies in support of the motions for summary judgment were filed on May 19, 2017. On June 16, 2017, the District Court issued an order denying the summary judgment motions. The District Court also denied Plaintiffs’ motion for summary judgment dismissing the Company’s defenses of implied waiver and equitable estoppel, and denied Plaintiffs’ alternative request for a separate hearing on the implied waiver and equitable estoppel defenses holding that the defenses would be submitted to the jury for an advisory verdict.

Trial in the Massachusetts District Court on all claims and defenses began on July 10, 2017. On July 21, 2017, the jury returned a unanimous verdict finding that although the Company’s tests infringed the asserted patent, the patent was invalid for lack of enablement and lack of written description and the jury further found that Plaintiffs are entitled to zero ($0) damages. As for the Company’s defenses of implied waiver and equitable estoppel, the jury found that Plaintiffs waived their right to recover for infringement of the asserted patent and that Plaintiffs are estopped from enforcing the asserted patent against the Company. The verdict on these equitable defenses was briefed by the parties and submitted to the Court. In the post-trial briefing, the Company requested the Court to adopt the findings of the jury on the equitable defenses, and to set aside the jury’s finding of infringement. In Plaintiffs’ post-trial briefing, Plaintiffs requested a new trial, and requested the Court to set aside the jury’s finding that the asserted patent was invalid for lack of enablement and lack of written description. In a February 7, 2018 Memorandum and Order and with respect to the equitable defenses, the Court found that Plaintiffs waived their right to enforce the ‘866 patent against the Company for its use of one of its test, and are equitably estopped from enforcing the ‘866 patent against the Company for its use of that same test. The Court also found that Plaintiffs have not waived their right to enforce the ‘866 patent against the Company for its use of a second test, and are not equitable estopped from enforcing the ‘866 patent against the Company for its use of that same second test. On February 7, 2018, the Court also denied all other post-trial motions. On March 20, 2018, the Court entered final judgment in this matter reflecting the jury’s verdict and the Court’s February 7, 2018 Memorandum and Order.

On March 23, 2018, the Company filed a motion to enforce liability on the bonds related to the preliminary injunction issued in October 2011, stayed in January 2012, and reversed by the Federal Circuit in August 2012. On March 27, 2018, Plaintiffs filed a notice of appeal with the Federal Circuit. Plaintiffs have not yet identified the issues they intend to appeal. On April 3, 2018, Plaintiffs filed a motion with the District Court to defer decision on the Company’s motion to enforce liability on the bonds pending their appeal. The Court has not yet decided the Company’s or Plaintiffs’ motions.

The Company will continue to vigorously defend the jury’s verdict, including against any potential appeal by the Plaintiffs. The Company intends to continue to pursue its attempt to collect the $100.1 million bond posted by Momenta and Sandoz.

False Claims Act Litigation

In January 2009, the Company filed a qui tam complaint in the U.S. District Court for the Central District of California, or the California District Court, alleging that Aventis Pharma S.A., or Aventis, through its acquisition of a patent through false and misleading statements to the U.S. Patent and Trademark Office, as well as through false and misleading statements to the FDA, overcharged the federal and state governments for its Lovenox® product. If the Company is successful in this litigation, it could be entitled to a portion of any damage award that the government ultimately may recover from Aventis. In October 2011, the California District Court unsealed the Company’s complaint.

On February 28, 2014, Aventis filed a motion for summary judgment on the issue of the adequacy of the Company’s notice letter to the government, and the California District Court denied Aventis’ motion for summary judgment in a final order it issued on May 12, 2014. On June 9, 2014, at Aventis’ request, the California District Court issued an order certifying for appeal its order denying Aventis’ motion for summary judgment. On June 9, 2014, Aventis filed with the United States Court of Appeals for the Ninth Circuit, or the Ninth Circuit, a petition for permission to appeal the California District Court’s denial of Aventis’ motion for summary judgment, and the Company filed an opposition to Aventis’ petition on June 19, 2014. On August 22, 2014, the Ninth Circuit granted Aventis’ petition. The parties filed their respective appeal briefs with the Ninth Circuit. On November 10, 2016, the Ninth Circuit heard oral argument on the appeal.

The California District Court set an evidentiary hearing for July 7, 2014 on the “original source” issue, a key element under the False Claims Act. The evidentiary hearing was conducted as scheduled, from July 7, 2014 through July 10, 2014. On July 13, 2015, the California District Court issued a ruling concluding that the Company is not an original source under the False Claims Act, and entered final judgment dismissing the case for lack of subject matter jurisdiction.

On July 20, 2015, the Company filed with the Ninth Circuit a notice of appeal of the California District Court’s dismissal of the case, and Aventis filed a notice of cross-appeal on August 5, 2015. On November 12, 2015, Aventis filed a pleading asking that the California District Court impose various monetary penalties and fines against the Company, including disgorgement of enoxaparin revenues and attorneys’ fees expended by Aventis in this action, based on Aventis’s allegations that the Company engaged in sanctionable conduct. On November 23, 2015, the California District Court issued an order setting forth a procedure for sanctions proceedings as to the Company as well as its outside counsel. On December 24, 2015, the Company filed a pleading with the California District Court opposing the imposition of sanctions, and on January 20, 2016, Aventis filed a response pleading further pressing for the imposition of sanctions. On May 4, 2016, the California District Court issued three orders requesting that the Company and its outside counsel file a document showing cause as to why sanctions should not be imposed and to set up a conference call with the partiers and the court to discuss whether any discovery and/or a hearing is necessary. On June 13, 2016, the Company and its outside counsel each filed responses to the court’s order to show cause as to why sanctions should not be imposed. On July 21, 2016, Aventis filed a response contending that the court should impose sanctions. On February 10, 2017, the Court held a show cause hearing regarding the potential imposition of sanctions and took the matter under submission. On September 18, 2017, the District Court issued its decision that no sanctions will be imposed on either the Company or its counsel.

On March 28, 2016, the Company filed its opening brief with the Ninth Circuit Court of Appeals setting forth detailed arguments as to why the False Claims Act litigation should not have been dismissed by the California District Court. On June 20, 2016, Aventis filed its principal brief in the appeal, responding to the Company’s arguments regarding dismissal of the False Claims Act litigation, and setting forth Aventis’s argument that it should be awarded attorneys’ fees and expenses. On September 19, 2016, the Company filed its reply brief to Aventis’s principal brief. On October 3, 2016, Aventis filed its reply brief in support of its cross-appeal of the District Court’s denial of attorneys’ fees. On November 10, 2016, the Ninth Circuit heard oral argument on the appeals.

On May 11, 2017, the Ninth Circuit issued an opinion affirming the California District Court’s dismissal of the action for lack of subject matter jurisdiction; dismissing as moot Aventis’s appeal from the District Court’s denial of its motion for summary judgment on the issue of the adequacy of the Company’s notice letter to the government; reversing the District Court’s denial of Aventis’s motion for attorneys’ fees; and remanding the case to the District Court for resolution of the attorneys’ fees issue. On July 14, 2017, Aventis filed an application with the District Court for entitlement to attorneys’ fees and expenses. The Company intends to continue to vigorously defend against any such imposition of attorneys’ fees or sanctions.

Momenta/Sandoz Antitrust Litigation

On September 17, 2015, the Company initiated a lawsuit by filing a complaint in the California District Court against Momenta and Sandoz, or the Defendants. The Company’s complaint generally asserts that Defendants have engaged in certain types of illegal, monopolistic, and anticompetitive conduct giving rise to various causes of action against them. On December 9, 2015, Defendants filed a motion to dismiss and a motion to transfer the case to the District of Massachusetts. On January 4, 2016, the Company filed oppositions to both motions. On January 26, 2016, the California District Court granted Defendants’ motion to transfer and did not rule on Defendants’ motion to dismiss. Accordingly, the case was transferred to the District of Massachusetts. On February 9, 2016, the Company filed a writ of mandamus with the Ninth Circuit to attempt to appeal the California District Court’s granting of Defendants’ motion to transfer to the District of Massachusetts. The Ninth Circuit denied this petition on May 20, 2016, and as such the case will remain before the District of Massachusetts. On July 27, 2016, the Massachusetts District Court granted Defendants’ motion to dismiss based on antitrust immunity doctrine, without addressing the substantive merits of the claims.

On August 25, 2016, the Company filed with the First Circuit Court of Appeals a notice of appeal of the Massachusetts District Court’s dismissal of the antitrust case. On October 31, 2016, the Company filed its appeal brief with the First Circuit. On December 5, 2016, Defendants filed their response brief with the First Circuit Court of Appeals. On December 19, 2016, the Company filed its rely brief with the First Circuit Court of Appeals, which concluded the briefing on this appeal. On February 9, 2017, the First Circuit Court of Appeals heard oral arguments. On March 6, 2017, the First Circuit Court of Appeals issued its decision, in which it held 3 to 0 that the District Court of Massachusetts erred in dismissing the Company’s antitrust case and sent the case back to the District Court to consider additional arguments.

On April 20, 2017, Defendants filed their supplemental motion to dismiss and the Company filed its opposition on May 4, 2017. On March 19, 2018, the District Court entirely denied the Defendants’ motion to dismiss. On April 19, 2018, the Defendants filed a motion to seek interlocutory appeal of the District Court’s motion to dismiss opinion. The Company filed its opposition to interlocutory appeal on May 1, 2018.

On March 19, 2018, the District Court granted the parties’ joint motion to extend the case schedule and accepted their proposed dates with a few modifications. Under the schedule, fact discovery will close on October 1, 2018. Summary judgment arguments are due on April 26, 2019; oppositions are due on June 14, 2019; and replies are due on July 10, 2019. Trial is scheduled for September 9, 2019.

Other Litigation

The Company is also subject to various other claims and lawsuits from time-to-time arising in the ordinary course of business. The Company records a provision for contingent losses when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. In the opinion of management, the ultimate resolution of any such matters is not expected to have a material adverse effect on its financial position, results of operations, or cash flows; however, the results of litigation and claims are inherently unpredictable and the Company’s view of these matters may change in the future. Regardless of the outcome, litigation can have an adverse impact on the Company because of defense and settlement costs, diversion of management resources, and other factors.

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2018

Summary of Significant Accounting Policies

Basis of Presentation

Basis of Presentation

The unaudited condensed consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, and are prepared in accordance with the requirements of the SEC for interim reporting. Effective January 1, 2018, the Company retrospectively adopted Accounting Standard Update, or ASU, No. 2016-15 Classification of Certain Cash Receipts and Cash Payments. Certain amounts in the prior quarter’s condensed consolidated balance sheet and condensed consolidated statement of cash flows have been reclassified to conform to the current quarter presentation. This reclassification has no impact on net income or cash flows. All significant intercompany activity has been eliminated in the preparation of the condensed consolidated financial statements.In the opinion of management, the accompanying unaudited condensed consolidated financial statements include all adjustments (consisting only of normal recurring adjustments) necessary to present fairly the consolidated financial position, results of operations, and cash flows of the Company.

The Company’s subsidiaries include: (1) International Medication Systems, Limited, or IMS, (2) Armstrong Pharmaceuticals, Inc., or Armstrong, (3) Amphastar Nanjing Pharmaceuticals Inc., or ANP, (4) Nanjing Letop Fine Chemistry Co., Ltd., or Letop, (5) Nanjing Hanxin Medical Technology Co., Ltd., or Hanxin, (6) Nanjing Baixin Trading Co., Ltd., or Baixin, (7) Amphastar France Pharmaceuticals, S.A.S., or AFP, (8) Amphastar UK Ltd., or AUK, and (9) International Medication Systems (UK) Limited, or IMS UK.

Use of Estimates

Use of Estimates

The preparation of condensed consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates. The principal accounting estimates include determination of allowances for doubtful accounts and discounts, provision for chargebacks and rebates, provision for product returns, adjustment of inventory to their net realizable values, impairment of long-lived and intangible assets and goodwill, self-insured claims, workers’ compensation liabilities, litigation reserves, stock price volatilities for share-based compensation expense, valuation allowances for deferred tax assets, and liabilities for uncertain income tax positions.

Foreign Currency

Foreign Currency

The functional currency of the Company, its domestic subsidiaries, its Chinese subsidiary, ANP, and its U.K. subsidiary, AUK, is the U.S. dollar, or USD. ANP maintains its books of record in Chinese Yuan. These books are remeasured into the functional currency of USD using the current or historical exchange rates. The resulting currency remeasurement adjustments and other transactional foreign currency exchange gains and losses are reflected in the Company’s statements of operations. 

The Company’s French subsidiary, AFP, maintains its book of record in Euros. Its other Chinese subsidiaries maintain their books of record in Chinese Yuan. Its U.K. subsidiary IMS UK, maintains its book of record in Great Britain Pounds. These local currencies have been determined to be the subsidiaries’ respective functional currencies. These books of record are translated into USD using average exchange rates during the period.  Assets and liabilities are translated at the rate of exchange prevailing on the balance sheet date. Equity is translated at the prevailing rate of exchange at the date of the equity transactions. Translation adjustments are reflected in stockholders’ equity and are included as a component of other accumulated comprehensive income (loss). The unrealized gains or losses of intercompany foreign currency transactions that are of a long-term investment nature are reported in other accumulated comprehensive income (loss). The unrealized gains of intercompany foreign currency transactions that are of a long-term investment nature for the three months ended March 31, 2018 and 2017 were $0.9 million, and a $0.5 million, respectively. 

Additionally, the Company does not undertake hedging transactions to cover its foreign currency exposure.

Comprehensive Income (Loss)

Comprehensive Income (loss)

For the three months ended March 31, 2018 and 2017, the Company included its foreign currency translation gain or loss as part of its comprehensive income (loss). Income tax expense of $0.3 million was allocated to other comprehensive income (loss) for the three months ended March 31, 2018. There was no material income tax expense (benefit) allocated to other comprehensive income (loss) for the three months ended March 31, 2017.

Restricted Cash and Short-term Investments

Restricted Cash and Short-term Investments

Restricted cash and short-term investments are collateral required for the Company to effect a standby letter of credit and to qualify for workers’ compensation self-insurance and are available to meet the Company’s workers’ compensation obligations on a current basis, as needed. As of March 31, 2018 and December 31, 2017, restricted cash and short-term investments include $1.9 million in cash and $2.3 million in certificates of deposit, respectively. The certificates of deposit have original maturities greater than three months and are classified as short-term investments.

Financial Instruments

Financial Instruments

The carrying amounts of cash and cash equivalents, short-term investments, restricted cash and short-term investments, accounts receivable, accounts payable, accrued expenses, and short-term borrowings approximate fair value due to the short maturity of these items. The majority of the Company’s long-term obligations consist of variable rate debt, and their carrying value approximates fair value as the stated borrowing rates are comparable to rates currently offered to the Company for instruments with similar maturities. However, the Company has one fixed-rate, long-term mortgage for which the carrying value differs from the fair value and is not remeasured on a recurring basis (see Note 12). The Company at times enters into fixed interest rate swap contracts to exchange the variable interest rates for fixed interest rates without the exchange of the underlying notional debt amounts. Such interest rate swap contracts are recorded at their fair values.

Deferred Income Taxes

Deferred Income Taxes

The Company utilizes the liability method of accounting for income taxes, under which deferred taxes are determined based on the temporary differences between the financial statements and the tax basis of assets and liabilities using enacted tax rates. A valuation allowance is recorded when it is more likely than not that the deferred tax assets will not be realized. At March 31, 2018, the Company had not completed its accounting for the tax effects of the enactment of the Tax Cuts and Jobs Act of 2017, or the Tax Act.

Business Combinations

Business Combinations

If an acquired set of activities and assets is capable of being operated as a business consisting of inputs and processes from the viewpoint of a market participant, the asset acquired and liabilities assumed are a business. Business combinations are accounted for using the acquisition method of accounting, which requires an acquirer to recognize the assets acquired and the liabilities assumed at the acquisition date measured at their fair values as of that date. Fair value determinations are based on discounted cash flow analyses or other valuation techniques. In determining the fair value of the assets acquired and liabilities assumed in a material acquisition, the Company may utilize appraisals from third party valuation firms to determine fair values of some or all of the assets acquired and liabilities assumed, or may complete some or all of the valuations internally. In either case, the Company takes full responsibility for the determination of the fair value of the assets acquired and liabilities assumed. The value of goodwill reflects the excess of the fair value of the consideration conveyed to the seller over the fair value of the net assets received.

Acquisition-related costs that the Company incurs to effect a business combination are expensed in the periods in which the costs are incurred. When the operations of the acquired businesses were not material to the Company's condensed consolidated financial statements, no pro forma presentations were disclosed.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In February 2016, the FASB issued ASU No. 2016-02 Leases, that is aimed at making leasing activities more transparent and comparable, and which requires substantially all leases be recognized by lessees on their balance sheets as a right-of-use asset and corresponding lease liability, including leases currently accounted for as operating leases. This guidance will become effective for the Company’s interim and annual reporting periods during the year ending December 31, 2019, and all annual and interim reporting periods thereafter. Early adoption is permitted. The Company is required to use a modified retrospective approach for leases that exist or are entered into after the beginning of the earliest comparative period in the financial statements for the reporting periods in which the guidance is adopted. While the Company continues to evaluate the provisions of ASC 842 to determine how it will be affected, the primary effect of adopting the new standard will be to record assets and obligations for current operating leases on its consolidated financial statements. Footnote 16 provides details on the Company’s current operating lease arrangements. The adoption of ASC 842 is not expected to have a material impact on the Company’s results of operations or cash flows.

In June 2016, the FASB issued ASU No. 2016-13 Financial Instruments – Credit Losses, which is aimed at providing financial statement users with more useful information about the expected credit losses on financial instruments and other commitments to extend credit. The standard update changes the impairment model for financial assets measured at amortized cost, requiring presentation at the net amount expected to be collected. The measurement of expected credit losses requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. Available-for-sale debt securities with unrealized losses will be recorded through an allowance for credit losses. The guidance is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2020. Early adoption is permitted for interim or annual periods after December 31, 2019. The Company will be required to apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. The Company does not believe the adoption of this accounting guidance will have a material impact on its consolidated financial statements and related disclosures.

In January 2017, the FASB issued ASU No. 2017-04 Simplifying the Test for Goodwill Impairment, which eliminates the requirement to calculate the implied fair value of goodwill. An entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. The update also eliminated the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, to perform Step 2 of the goodwill impairment test. An entity is required to disclose the amount of goodwill allocated to each reporting unit with a zero or negative carrying amount of net assets. The guidance is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2020, and applied on a prospective basis. Early adoption is permitted for interim and annual goodwill impairment testing dates after January 1, 2017. The Company currently does not believe that the adoption of this accounting guidance will have a material impact on its consolidated financial statements and related disclosures.

In August 2017, the FASB issued ASU No. 2017-12 Targeted Improvements to Accounting for Hedging Activities, which amends the hedge accounting model in ASC 815 to enable entities to better portray the economics of their risk management activities in the financial statements and enhance the transparency and understandability of hedge results. The amendments also simplify the application of hedge accounting in certain situations. The new guidance is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2019. Early adoption is permitted. The Company does not believe that the adoption of this accounting guidance will have a material impact on its consolidated financial statements and related disclosures.

In February 2018, the FASB issued ASU No. 2018-02 Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which allows entities to reclassify from accumulated other comprehensive income to retained earnings stranded tax effects resulting from the Tax Cuts and Jobs Act of 2017. The guidance is effective for the Company’s interim and annual reporting periods during the year ending December 31, 2019. Early adoption is permitted. The Company does not believe that the adoption of this accounting guidance will have a material impact on its consolidated financial statements and related disclosures

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Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2018

Revenue Recognition

Schedule of chargeback provision analysis

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Beginning balance	$	18,470	$	39,709
Provision for chargebacks and rebates		25,334		58,606
Credits and payments issued to third parties		(28,774)		(76,242)
Ending balance	$	15,030	$	22,073

Schedule of product return liability analysis

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Beginning balance	$	6,522	$	3,143
Provision for product returns		747		1,062
Credits issued to third parties		(498)		(462)
Ending balance	$	6,771	$	3,743

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Income (Loss) per Share (Tables)

3 Months Ended

Mar. 31, 2018

Income (Loss) per Share

Schedule of basic and diluted net income (loss) per share calculation

	Three Months Ended
	March 31,
	2018		2017
	(in thousands, except per share data)
Basic and dilutive numerator:
Net income (loss)	$	(7,246)	$	893
Denominator:
Weighted-average shares outstanding — basic		46,514		46,069
Net effect of dilutive securities:
Incremental shares from equity awards		—		1,988
Weighted-average shares outstanding — diluted		46,514		48,057
Net income (loss) per share — basic	$	(0.16)	$	0.02
Net income (loss) per share — diluted	$	(0.16)	$	0.02

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Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting

Schedule of financial information by reporting segment

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Net revenues:
Finished pharmaceutical products	$	53,117	$	55,934
API		5,276		736
Total net revenues		58,393		56,670
Gross profit:
Finished pharmaceutical products		19,725		24,310
API		(2,664)		(1,482)
Total gross profit		17,061		22,828
Operating expenses		26,979		21,424
Income (loss) from operations		(9,918)		1,404
Non-operating income		888		100
Income (loss) before income taxes	$	(9,030)	$	1,504

Schedule of net revenues in the finished pharmaceutical products segment

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Finished pharmaceutical products net revenues:
Lidocaine	$	9,782	$	8,289
Phytonadione		9,181		7,886
Naloxone		8,927		10,939
Enoxaparin		7,007		10,410
Epinephrine		3,223		9,574
Medroxyprogesterone		2,706		—
Other finished pharmaceutical products		12,291		8,836
Total finished pharmaceutical products net revenues	$	53,117	$	55,934

Schedule of net revenues and carrying values of long-lived assets by geographic region

	Net Revenue				Long-Lived Assets
	Three Months Ended
	March 31,				March 31,		December 31,
	2018		2017		2018		2017
	(in thousands)
United States	$	53,104	$	55,930	$	110,461	$	110,235
China		—		—		43,323		41,078
France		5,289		740		38,131		34,026
United Kingdom		—		—		—		—
Total	$	58,393	$	56,670	$	191,915	$	185,339

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Customer and Supplier Concentration (Tables)

3 Months Ended

Mar. 31, 2018

Customer and Supplier Concentration

Schedule of accounts receivable and net revenues by major customer

	% of Total Accounts				% of Net
	Receivable				Revenue
					Three Months Ended
	March 31,		December 31,		March 31,
	2018		2017		2018		2017
McKesson	22	%	22	%	28	%	26	%
AmerisourceBergen	24	%	33	%	26	%	30	%
Cardinal Health	20	%	12	%	23	%	24	%

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Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets

Schedule of weighted-average life, original cost, accumulated amortization and net book value by major class

	Weighted-Average			Accumulated
	Life (Years)	Original Cost		Amortization		Net Book Value
	(in thousands)
Definite-lived intangible assets
Cortrosyn® product rights	12	$	27,134	$	26,688	$	446
IMS (UK) international product rights	10		9,802		1,634		8,168
Patents	12		486		181		305
Land-use rights	39		2,540		436		2,104
Other intangible assets	4		69		50		19
Subtotal	12		40,031		28,989		11,042
Indefinite-lived intangible assets
Trademark	*		29,225		—		29,225
Goodwill - Finished pharmaceutical products	*		4,583		—		4,583
Subtotal	*		33,808		—		33,808
As of March 31, 2018	*	$	73,839	$	28,989	$	44,850

	Weighted-Average			Accumulated
	Life (Years)	Original Cost		Amortization		Net Book Value
	(in thousands)
Definite-lived intangible assets
Cortrosyn® product rights	12	$	27,134	$	26,243	$	891
IMS (UK) international product rights	10		9,440		1,337		8,103
Patents	12		486		170		316
Land-use rights	39		2,540		419		2,121
Other intangible assets	4		69		46		23
Subtotal	12		39,669		28,215		11,454
Indefinite-lived intangible assets
Trademark	*		29,225		—		29,225
Goodwill - Finished pharmaceutical products	*		4,461		—		4,461
Subtotal	*		33,686		—		33,686
As of December 31, 2017	*	$	73,355	$	28,215	$	45,140

*Intangible assets with indefinite lives have an indeterminable average life.

Schedule of changes in carrying amounts of goodwill

	March 31,		December 31,
	2018		2017
	(in thousands)
Beginning balance	$	4,461	$	3,976
Currency translation and other adjustments		122		485
Ending balance	$	4,583	$	4,461

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Inventories (Tables)

3 Months Ended

Mar. 31, 2018

Inventories

Schedule of inventories

	March 31,		December 31,
	2018		2017
	(in thousands)
Raw materials and supplies	$	22,272	$	19,973
Work in process		21,796		22,469
Finished goods		18,712		21,167
Total inventories	$	62,780	$	63,609

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Property, Plant, and Equipment (Tables)

3 Months Ended

Mar. 31, 2018

Property, Plant, and Equipment

Schedule of property, plant, and equipment

	March 31,		December 31,
	2018		2017
	(in thousands)
Buildings	$	89,579	$	89,124
Leasehold improvements		29,938		29,847
Land		7,148		7,110
Machinery and equipment		120,756		118,056
Furniture, fixtures, and automobiles		17,132		16,385
Construction in progress		63,959		58,145
Total property, plant, and equipment		328,512		318,667
Less accumulated depreciation		(136,597)		(133,328)
Total property, plant, and equipment, net	$	191,915	$	185,339

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Accounts Payable and Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2018

Accounts Payable and Accrued Liabilities

Schedule of accounts payable and accrued liabilities

	March 31,		December 31,
	2018		2017
	(in thousands)
Accrued customer fees and rebates	$	13,464	$	15,981
Accrued payroll and related benefits		17,774		15,680
Accrued product returns, current portion		4,586		4,133
Other accrued liabilities		7,043		5,132
Total accrued liabilities		42,867		40,926
Accounts payable		15,631		16,629
Total accounts payable and accrued liabilities	$	58,498	$	57,555

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Debt (Tables)

3 Months Ended

Mar. 31, 2018

Debt

Schedule of debt

	March 31,		December 31,
	2018		2017
	(in thousands)
Loans with East West Bank
Line of credit facility due December 2018	$	—	$	—
Equipment loan due January 2019		1,283		1,668
Mortgage payable due February 2021		3,556		3,577
Equipment loan due June 2021		3,980		4,286
Equipment line of credit due December 2022		—		—
Mortgage payable due October 2026		3,509		3,524
Mortgage payable due June 2027		8,903		8,936
Loans with Cathay Bank
Line of credit facility due May 2018		—		—
Acquisition loan due April 2019		14,562		15,073
Mortgage payable due August 2027		7,752		7,795
Loans with Seine-Normandie Water Agency
French government loan 1 paid off March 2018		—		17
French government loan 2 due June 2020		88		85
French government loan 3 due July 2021		248		239
Payment Obligation to Merck		599		599
Equipment under Capital Leases		1,287		1,357
Total debt and capital leases		45,767		47,156
Less current portion of long-term debt and capital leases		6,061		6,312
Long-term debt and capital leases, net of current portion	$	39,706	$	40,844

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Income Taxes (Tables)

3 Months Ended

Mar. 31, 2018

Income Taxes

Schedule of reconciliation of the statutory federal income tax rate

	Three Months Ended
	March 31,
	2018			2017
	(in thousands)
Income (loss) before taxes	$	(9,030)		$	1,504
Income tax expense (benefit)		(1,784)			611
Net income (loss)	$	(7,246)		$	893
Income tax provision as a percentage of income before income taxes		19.8	%		40.6	%

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Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

Stockholders' Equity

Summary of changes in stockholders' equity

	Three Months Ended
	March 31,
	2018
	(in thousands)
Stockholders’ equity as of December 31, 2017	$	337,329
Beginning balance adjustment as a result of the adoption of new accounting standards		582
Net loss		(7,246)
Other comprehensive income		1,190
Net proceeds from equity plans		(1,793)
Share-based compensation expense		4,666
Purchase of treasury stock		(7,624)
Stockholders’ equity as of March 31, 2018	$	327,104

Schedule of key assumptions to determine fair value of options

	Three Months Ended
	March 31,
	2018		2017
Average volatility	39.6	%	36.7	%
Risk-free interest rate	2.7	%	2.2	%
Weighted-average expected life in years	5.8		5.7
Dividend yield rate	—	%	—	%

Schedule of the summary of option activity under all plans

				Weighted-Average
		Weighted-Average		Remaining	Aggregate
		Exercise		Contractual	Intrinsic
	Options	Price		Term (Years)	Value(1)
					(in thousands)
Outstanding as of December 31, 2017	10,898,701	$	14.65
Options granted	966,026		20.59
Options exercised	(147,508)		12.61
Options cancelled	(106,615)		13.02
Options expired	(375)		14.66
Outstanding as of March 31, 2018	11,610,229	$	15.19	5.02	$	49,844
Exercisable as of March 31, 2018	8,122,678	$	15.07	3.79	$	36,557

The aggregate intrinsic value is calculated as the difference between the exercise price of the underlying awards and the estimated fair value of the Company’s common stock for those awards that have an exercise price below the estimated fair value at March 31, 2018.

Schedule of information relating to options grants

	Three Months Ended
	March 31,
	2018		2017
	(in thousands, except per share data)
Weighted-average grant date fair value per option share	$	7.94	$	4.87
Intrinsic value of options exercised		1,061		24
Cash received from options exercised		1,861		96
Total fair value of the options vested during the year		6,407		4,781

Schedule of the summary of nonvested options status

		Weighted-Average
		Grant Date
	Options	Fair Value
Non-vested as of December 31, 2017	4,310,241	$	4.21
Options granted	966,026		7.94
Options vested	(1,682,101)		3.81
Options forfeited	(106,615)		4.77
Non-vested as of March 31, 2018	3,487,551		5.41

Schedule of information relating to RSU grants and deliveries

		Total Fair Market
		Value of RSUs
		Issued
	Total RSUs	as
	Issued	Compensation(1)
		(in thousands)
RSUs outstanding at December 31, 2017	1,392,781
RSUs granted	387,551	$	7,670
RSUs forfeited	(40,473)
RSUs vested(2)	(480,586)
RSUs outstanding at March 31, 2018	1,259,273

The total fair market value is derived from the number of RSUs granted times the current stock price on the date of grant.

Schedule of recorded share-based compensation expense under all plans

	Three Months Ended
	March 31,
	2018		2017
	(in thousands)
Cost of revenues	$	1,160	$	1,131
Operating expenses:
Selling, distribution, and marketing		107		84
General and administrative		2,893		2,783
Research and development		506		453
Total share-based compensation	$	4,666	$	4,451

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Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Summary of Significant Accounting Policies
Gains and losses of intercompany foreign currency transactions	$ 0.9	$ 0.5
Income tax expense allocated to other comprehensive income	0.3
Restricted cash	1.9
Certificates of deposit	2.3
Inventory adjustment to reflect net realizable value	$ 1.9	$ 0.4

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Revenue Recognition (Analysis of the Chargeback Provision) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Beginning balance	$ 18,470	$ 39,709	$ 39,709
Provision for chargebacks and rebates	25,334	58,606
Credits and payments issued to third parties	(28,774)	(76,242)
Ending balance	15,030	$ 22,073	18,470
Accounts Receivable, Net
Provision for chargebacks and rebates	5,300		6,800
Accounts Payable and Accrued Liabilities [Member]
Provision for chargebacks and rebates	$ 9,700		$ 11,700

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Revenue Recognition (Analysis of Product Return Liability) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Revenue Recognition
Beginning balance	$ 6,522	$ 3,143	$ 3,143
Provision for product returns	747	1,062
Credits issued to third parties	(498)	(462)
Ending balance	6,771	$ 3,743	6,522
Sales not recognized in revenues due to insufficient information available to estimate a reasonable product return accrual	$ 1,000		1,200
Aggregate product return rate	1.30%	1.10%
Return accrual included in other long-term liabilities	$ 2,200		$ 2,400

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Income (Loss) per Share (Narrative) (Details) - $ / shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Exercise Price of Excluded Securities		$ 22.44
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Shares	11,610,229	2,376,234
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Shares	1,259,273
Employee Stock Purchase Plan (ESPP)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Shares	56,128

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Income (Loss) per Share (Calculation of Basic and Diluted Net Income (Loss) Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Basic and dilutive numerator:
Net loss	$ (7,246)	$ 893
Denominator:
Weighted-average shares outstanding—basic	46,514	46,069
Net effect of dilutive securities:
Incremental shares from equity awards		1,988
Weighted-average shares outstanding — diluted	46,514	48,057
Net income (loss) per share — basic	$ (0.16)	$ 0.02
Net income (loss) per share — diluted	$ (0.16)	$ 0.02

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Segment Reporting (Selected Financial Information by Reporting Segment) (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018 USD ($) segment	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting Information [Line Items]
Number of Reportable Segments | segment	2
Net revenues:
Net Revenue	$ 58,393	$ 56,670
Gross Profit:
Gross Profit	17,061	22,828
Operating expenses	26,979	21,424
Income (loss) from operations	(9,918)	1,404
Non-operating income (expenses)	888	100
Income (loss) before income taxes	(9,030)	1,504
Finished Pharmaceutical Products
Net revenues:
Net Revenue	53,117	55,934
Gross Profit:
Gross Profit	19,725	24,310
Epinephrine
Segment Reporting Information [Line Items]
Net revenues recognized			$ 17,800
API
Net revenues:
Net Revenue	5,276	736
Gross Profit:
Gross Profit	$ (2,664)	$ (1,482)

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Segment Reporting (Summary of Net Revenues by Product Segment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Net Revenue	$ 58,393	$ 56,670
Finished Pharmaceutical Products
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Net Revenue	53,117	55,934
Finished Pharmaceutical Products | Enoxaparin
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Net Revenue	7,007	10,410
Finished Pharmaceutical Products | Naloxone
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Net Revenue	8,927	10,939
Finished Pharmaceutical Products | Lidocaine
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Net Revenue	9,782	8,289
Finished Pharmaceutical Products | Phytonadione
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Net Revenue	9,181	7,886
Finished Pharmaceutical Products | Epinephrine
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Net Revenue	3,223	9,574
Finished Pharmaceutical Products | Medroxyprogesterone
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Net Revenue	2,706
Finished Pharmaceutical Products | Other Finished Pharmaceutical Products
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Net Revenue	$ 12,291	$ 8,836

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Segment Reporting (Summary of Revenues and Long-Lived Assets by Geographic Region) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenue	$ 58,393	$ 56,670
Long-Lived Assets	191,915		$ 185,339
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenue	53,104	55,930
Long-Lived Assets	110,461		110,235
CHINA
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	43,323		41,078
FRANCE
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Revenue	5,289	$ 740
Long-Lived Assets	$ 38,131		$ 34,026

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Customer and Supplier Concentration (Details) - Customer Concentration Risk [Member] - item	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Revenue, Major Customer [Line Items]
Number of major customers that are wholesale distributors	3
Accounts Receivable, Net
Revenue, Major Customer [Line Items]
Number of major customers	3		3
Net Revenues
Revenue, Major Customer [Line Items]
Number of major customers	3	3
AmerisourceBergen | Accounts Receivable, Net
Revenue, Major Customer [Line Items]
Major Customers	24.00%		33.00%
AmerisourceBergen | Net Revenues
Revenue, Major Customer [Line Items]
Major Customers	26.00%	30.00%
Cardinal Health | Accounts Receivable, Net
Revenue, Major Customer [Line Items]
Major Customers	20.00%		12.00%
Cardinal Health | Net Revenues
Revenue, Major Customer [Line Items]
Major Customers	23.00%	24.00%
McKesson | Accounts Receivable, Net
Revenue, Major Customer [Line Items]
Major Customers	22.00%		22.00%
McKesson | Net Revenues
Revenue, Major Customer [Line Items]
Major Customers	28.00%	26.00%

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Goodwill and Intangible Assets (Summary of Intangible Assets) (Details) $ in Thousands	1 Months Ended			3 Months Ended			12 Months Ended
	Jan. 31, 2018 USD ($)	Feb. 28, 2017 USD ($)	Mar. 31, 2016 item	Mar. 31, 2018 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Definite-lived intangible assets
Weighted-Average Life (Years)				12 years			12 years
Finite-Lived Intangible Assets, Gross				$ 40,031			$ 39,669
Accumulated Amortization				28,989			28,215
Finite-Lived Intangible Assets, Net				11,042			11,454
Indefinite-lived intangible assets
Goodwill recognized				4,583			4,461	$ 3,976
Subtotal, Original Cost				33,808			33,686
Subtotal, Net Book Value				33,808			33,686
Balance, Original Cost				73,839			73,355
Balance, Net Book Value				44,850			45,140
Proceeds received from sale of ANDAs				4,400		$ 1,000
Hikma Pharmaceuticals PLC
Indefinite-lived intangible assets
Number of Injectable Products Acquired | item			14
Number of Different Injectable Chemical Entities | item			11
Proceeds received from sale of ANDAs	$ 4,400	$ 1,000			$ 1,000
Royalty Fee Percentage		2.00%
Indemnification Liability Payable		$ 600
Gain recognized within operating (income) expenses				2,600
Finished Pharmaceutical Products
Indefinite-lived intangible assets
Goodwill recognized				4,583			4,461
Trademarks
Indefinite-lived intangible assets
Indefinite-lived intangible assets				$ 29,225			$ 29,225
Product rights
Definite-lived intangible assets
Weighted-Average Life (Years)				12 years			12 years
Finite-Lived Intangible Assets, Gross				$ 27,134			$ 27,134
Accumulated Amortization				26,688			26,243
Finite-Lived Intangible Assets, Net				$ 446			$ 891
Patents
Definite-lived intangible assets
Weighted-Average Life (Years)				12 years			12 years
Finite-Lived Intangible Assets, Gross				$ 486			$ 486
Accumulated Amortization				181			170
Finite-Lived Intangible Assets, Net				$ 305			$ 316
Land-use rights
Definite-lived intangible assets
Weighted-Average Life (Years)				39 years			39 years
Finite-Lived Intangible Assets, Gross				$ 2,540			$ 2,540
Accumulated Amortization				436			419
Finite-Lived Intangible Assets, Net				$ 2,104			$ 2,121
Other intangible assets
Definite-lived intangible assets
Weighted-Average Life (Years)				4 years			4 years
Finite-Lived Intangible Assets, Gross				$ 69			$ 69
Accumulated Amortization				50			46
Finite-Lived Intangible Assets, Net				$ 19			$ 23
International Medication Systems (UK) Limited | Acquired international product rights
Definite-lived intangible assets
Weighted-Average Life (Years)				10 years			10 years
Finite-Lived Intangible Assets, Gross				$ 9,802			$ 9,440
Accumulated Amortization				1,634			1,337
Finite-Lived Intangible Assets, Net				$ 8,168			$ 8,103

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Goodwill and Intangible Assets (Summary of Changes in the Carrying Amount of Goodwill) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Goodwill and Intangible Assets
Beginning balance	$ 4,461	$ 3,976
Currency translation and other adjustments	122	485
Ending balance	$ 4,583	$ 4,461

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Inventories (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Inventories
Raw materials and supplies	$ 22,272		$ 19,973
Work in process	21,796		22,469
Finished goods	18,712		21,167
Total inventory, net	62,780		$ 63,609
Inventory adjustment to reflect net realizable value	$ 1,900	$ 400

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Property, Plant, and Equipment (Summary of Property, Plant, and Equipment) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	$ 328,512	$ 318,667
Less accumulated depreciation and amortization	(136,597)	(133,328)
Total property, plant, and equipment, net	191,915	185,339
Buildings
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	89,579	89,124
Leasehold improvement
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	29,938	29,847
Land
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	7,148	7,110
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	120,756	118,056
Furniture, fixtures, and automobiles
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	17,132	16,385
Construction in progress
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	63,959	58,145
Equipment | Primatene Mist
Property, Plant and Equipment [Line Items]
Total property, plant, and equipment	$ 2,200	$ 2,300

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Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Accounts Payable and Accrued Liabilities
Accrued customer fees and rebates	$ 13,464	$ 15,981
Accrued payroll and related benefits	17,774	15,680
Accrued product returns, current portion	4,586	4,133
Other accrued liabilities	7,043	5,132
Total accrued liabilities	42,867	40,926
Accounts payable	15,631	16,629
Total accounts payable and accrued liabilities	$ 58,498	$ 57,555

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Debt (Schedule of Debt) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument
Equipment under Capital Leases	$ 1,287	$ 1,357
Total debt and capital leases	45,767	47,156
Less current portion of long-term debt and capital leases	6,061	6,312
Long-term debt and capital leases, net of current portion	39,706	40,844
Equipment Loan - Due January 2019 | East West Bank
Debt Instrument
Long Term Debt	1,283	1,668
Mortgage Payable - Due February 2021 | East West Bank
Debt Instrument
Long Term Debt	3,556	3,577
Equipment Loan - Due June 2021 | East West Bank
Debt Instrument
Long Term Debt	3,980	4,286
Mortgage Payable - Due October 2026 | East West Bank
Debt Instrument
Long Term Debt	3,509	3,524
Mortgage Payable - Due June 2027 | East West Bank
Debt Instrument
Long Term Debt	8,903	8,936
Acquisition Loan - Due April 2019 | Cathay Bank
Debt Instrument
Long Term Debt	14,562	15,073
Mortgage Payable - Due August 2027 | Cathay Bank
Debt Instrument
Long Term Debt	7,752	7,795
French Government Loan - Due March 2018 | Seine-Normandie Water Agency
Debt Instrument
Long Term Debt		17
French Government Loan - Due June 2020 | Seine-Normandie Water Agency
Debt Instrument
Long Term Debt	88	85
French Government Loan - Due July 2021 | Seine-Normandie Water Agency
Debt Instrument
Long Term Debt	248	239
Note Payable To Merck
Debt Instrument
Long Term Debt	$ 599	$ 599

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Debt (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Debt
Long-term Debt and Capital Lease Obligations	$ 39,706	$ 40,844
East West Bank
Debt
Interest rate swap, fair value	400	100
Equipment under Capital Leases
Debt
Capital Leased Assets, Gross	$ 1,600	$ 1,600

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Income Taxes (Narrative) (Details)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Federal
Tax Credit Carryforward [Line Items]
Federal income tax rate		35.00%
Forecast
Tax Credit Carryforward [Line Items]
Federal income tax rate	21.00%
Forecast | Federal
Tax Credit Carryforward [Line Items]
Federal income tax rate	21.00%

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Income Taxes (Summary of Income Before Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income (loss) before income taxes:
Income (loss) before income taxes	$ (9,030)	$ 1,504
Income tax expense (benefit)	(1,784)	611
Net income (loss)	$ (7,246)	$ 893
Income tax provision as a percentage of income before income taxes	19.80%	40.60%

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Income Taxes (ASU 2016-16) (Details) $ in Millions	Mar. 31, 2018 USD ($)
Accounting Standards Update 2016-16
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income tax assets	$ 0.5

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Stockholders' Equity (Summary of the Changes in Stockholders' Equity) (Details) - USD ($) $ in Thousands		3 Months Ended
	Jan. 01, 2018	Mar. 31, 2018	Mar. 31, 2017
Stockholders' Equity
Balance	$ 337,329	$ 337,329
Beginning balance adjustment as a result of new accounting standards	$ 582
Net loss		(7,246)	$ 893
Other comprehensive income		1,190
Net proceeds from equity plans		1,793
Share-based compensation expense		4,666
Treasury stock repurchase		(7,624)
Balance		$ 327,104

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Stockholders' Equity (2014 Employee Stock Purchase Plan) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Stockholders' Equity
Allocated share based compensation	$ 4,666	$ 4,451

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Stockholders' Equity (Share Buyback Program) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	May 07, 2018
Equity, Class of Treasury Stock [Line Items]
Treasury Stock, Value, Acquired, Cost Method	$ 7,624
November 2014 Share Repurchase Plan
Equity, Class of Treasury Stock [Line Items]
Treasury Stock, Shares, Acquired (in Shares)	407,604	532,894
Treasury Stock, Value, Acquired, Cost Method	$ 7,600	$ 8,200
Subsequent Event | November 2014 Share Repurchase Plan
Equity, Class of Treasury Stock [Line Items]
Increase authorized for share buyback program			$ 20,000

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Stockholders' Equity (The 2015 Equity Incentive Plan) (Details) - The 2015 Equity Incentive Plan	3 Months Ended
	Mar. 31, 2018 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in Shares)	4,782,238
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	1,165,590

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Stockholders' Equity (Key Assumptions Used in Determining Fair Value of Options Granted) (Details)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Stockholders' Equity
Average volatility	39.60%	36.70%
Risk-free interest rate	2.70%	2.20%
Weighted-average expected life in years	5 years 9 months 18 days	5 years 8 months 12 days
Dividend yield rate	0.00%	0.00%

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Stockholders' Equity (Summary of Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Options
Outstanding Options, Beginning of period	10,898,701
Options granted	966,026
Options exercised	(147,508)
Options cancelled	(106,615)
Options expired	(375)
Outstanding Options, End of period	11,610,229
Exercisable at the end of period	8,122,678
Weighted-Average Exercise Price
Outstanding Exercise Price (in dollars per share)	$ 14.65
Options granted (in dollars per share)	20.59
Options exercised (in dollars per share)	12.61
Options cancelled (in dollars per share)	13.02
Options expired (in dollars per share)	14.66
Outstanding Exercise Price (in dollars per share)	15.19
Exercisable at the end of period (in dollars per share)	$ 15.07
Additional Disclosures
Outstanding Contractual Term (in Years)	5 years 7 days
Outstanding Intrinsic Value	$ 49,844
Exercisable at the end of period (in Years)	3 years 9 months 15 days
Exercisable aggregate intrinsic value	$ 36,557
Allocated share based compensation	4,666	$ 4,451
Employee Stock Option
Additional Disclosures
Allocated share based compensation	2,400	2,000
Employee Stock Option | Board of Directors
Additional Disclosures
Allocated share based compensation	$ 100	$ 100

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Stockholders' Equity (Information Relating to Option Grants and Exercises) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Stockholders' Equity
Weighted-average grant date fair value (in Dollars per share)	$ 7.94	$ 4.87
Intrinsic value of options exercised	$ 1,061	$ 24
Cash received	1,861	96
Total fair value of the options vested during the year	$ 6,407	$ 4,781

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Stockholders' Equity (Summary of Nonvested Options) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Options
Nonvested at beginning of period	4,310,241
Options granted	966,026
Options vested	(1,682,101)
Options forfeited	(106,615)
Nonvested at end of period	3,487,551
Weighted-Average Grant Date Fair Value
Nonvested at beginning of period (in dollars per share)	$ 4.21
Options granted (in dollars per share)	7.94	$ 4.87
Options vested (in dollars per share)	3.81
Options forfeited (in dollars per share)	4.77
Nonvested at end of period (in dollars per share)	$ 5.41
Employee Consultant And Directors Stock Options
Weighted-Average Grant Date Fair Value
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options	$ 15.6
Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	2 years 8 months 12 days

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Stockholders' Equity (Restricted Stock Units) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding Contractual Term (in Years)	5 years 7 days
Allocated share based compensation	$ 4,666	$ 4,451
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	5 years
Allocated share based compensation	$ 1,700	2,000
Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	2 years 9 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Restricted Stock Units, Number of Shares of Common Stock Per Award (in Shares)	1
Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options	$ 17,200
Board of Directors | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share based compensation	$ 100	$ 100

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Stockholders' Equity (Information Relating to RSU Grants and Deliveries) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) shares
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Total RSUs outstanding at the beginning of the period	1,392,781
RSUs granted	387,551
RSUs forfeited	(40,473)
RSUs vested	(480,586)
Total RSUs outstanding at the end of the period	1,259,273
Stock surrendered to fulfill tax withholding obligations	187,528
Restricted Stock Units Issued as Compensation
Total Fair Market Value of RSUs Issued
RSUs granted (in Dollars) | $	$ 7,670

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Stockholders' Equity (Equity Awards to Consultants and Advisory Board Members) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Stockholders' Equity
Allocated share based compensation	$ 4,666	$ 4,451

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Stockholders' Equity (Share-Based Compensation Expense Included in the Statement of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share based compensation	$ 4,666	$ 4,451
Cost of revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share based compensation	1,160	1,131
Selling, distribution and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share based compensation	107	84
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share based compensation	2,893	2,783
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share based compensation	$ 506	$ 453

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Employee Benefits (Details) - USD ($) $ in Millions	3 Months Ended		15 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Dec. 31, 2017
Employee Benefits
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	50.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	6.00%
Defined Contribution Plan, Employer Contribution Vesting Period	4 years
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 0.3	$ 0.3
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	1.60%		1.60%	1.60%
Defined Benefit Plan, Benefit Obligation	$ 2.3		$ 2.3	$ 2.1
Pension Cost (Reversal of Cost)			$ 0.0

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Commitments and Contingencies (Supply Agreement with MannKind Corporation) (Details) - MannKind Corporation - Supply Commitment - Recombinant Human Insulin (RHI) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($)
Supply Commitment [Line Items]
Supply Commitment, Cancellation Fee	$ 0.9
Sales	$ 3.2

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Commitments and Contingencies (Collaboration Agreements) (Details) - Drug delivery system $ in Millions	1 Months Ended	3 Months Ended
	Oct. 31, 2017 USD ($) item	Mar. 31, 2018 USD ($) item
Collaborative Arrangement One [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaborative Agreement, Upfront Payment		$ 0.5
Collaborative Agreement, Milestone Payments		1.5
Collaborative Agreement, Contingent Obligation		$ 0.5
Collaborative Agreement, Contingent Purchase Obligation First 12 Months, Units | item		1,000,000
Purchase period		12 months
Collaborative Arrangement Two [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Collaborative Agreement, Upfront Payment		$ 0.4
Collaborative Agreement, Contingent Obligation	$ 1.0	$ 1.2
Purchase period	3 years
Collaborative Agreement, Amount	$ 1.6
Collaborative Agreement, Contingent Purchase Obligation, Units | item	100,000

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Commitments and Contingencies (Operating Lease Agreements) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Operating Leased Assets [Line Items]
Operating Leases, Rent Expense	$ 1.0	$ 0.9
Minimum
Operating Leased Assets [Line Items]
Lessee Leasing Arrangements, Operating Leases, Renewal Term	1 year
Maximum
Operating Leased Assets [Line Items]
Lessee Leasing Arrangements, Operating Leases, Renewal Term	6 years

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Commitments and Contingencies (Purchase Commitments) (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended	12 Months Ended
	Nov. 30, 2012	Jan. 31, 2010	Mar. 31, 2018	Dec. 31, 2016
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Maximum Royalty Amount Owed, Contingent On Sales of Products			$ 1.5
Commitments to Purchase Equipment and Raw Materials
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Long-term Purchase Commitment, Amount			$ 50.0
Commitment to invest | ANP
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Purchase Commitments Amount Fulfilled				$ 61.0
Land-use rights | Commitment to invest
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Finite-lived Intangible Assets Acquired	$ 1.3	$ 1.2
Land-use rights | Commitment to develop land
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Contractual Obligation	$ 15.0

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Litigation (Details) $ in Millions					12 Months Ended
	May 09, 2016 USD ($)	May 04, 2016 item	Oct. 31, 2011 USD ($)	Sep. 21, 2011 patent	Dec. 31, 2017 USD ($)
Enoxaparin Patent Litigation
Loss Contingencies [Line Items]
Number of Alleged Patent Infringements | patent				2
Fees and costs relating to a discovery motion	$ 0.4
Litigation, Plaintiff Preliminary Injunction Bond, Amount			$ 100.1
False Claims Act Litigation
Loss Contingencies [Line Items]
Number of orders issued by district court | item		3
Settled Litigation [Member] | Enoxaparin Patent Litigation
Loss Contingencies [Line Items]
Litigation Settlement, Amount					$ 0.0