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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

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

Date of Report (Date of earliest event reported): February 24, 2015

ALKERMES PUBLIC LIMITED COMPANY

(Exact name of registrant as specified in its charter)

(Registrant’s telephone number, including area code): + 353-1-772-8000

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o                                    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o                                    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o                                    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o                                    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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Item 2.02 Results of Operations and Financial Condition

On February 24, 2015, Alkermes plc announced financial results for the year ended December 31, 2014 and financial expectations for the twelve months ending December 31, 2015. A copy of the press release is attached hereto as Exhibit 99.1. This information, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or incorporated by reference in any filing under the Securities Act or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits

(d) Exhibits.

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SIGNATURE

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 hereunto duly authorized.

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EXHIBIT INDEX

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Exhibit 99.1

ALKERMES PLC REPORTS FINANCIAL RESULTS FOR THE YEAR ENDED
DEC. 31, 2014 AND PROVIDES FINANCIAL EXPECTATIONS FOR 2015

— Record Revenues of $618.8 Million
and Non-GAAP Diluted EPS of $0.35 for Calendar 2014  —

— Preparing for Launch of Aripiprazole Lauroxil and Advancing Pivotal Development Programs for ALKS 5461, ALKS 3831 and ALKS 8700  —

DUBLIN, Ireland, Feb. 24, 2015 — Alkermes plc (NASDAQ: ALKS) today reported financial results for the twelve months ended Dec. 31, 2014 and provided financial expectations for 2015.

“We had a tremendous year of achievement in 2014, marked by successful execution of our ambitious business plan and exciting clinical validation of our development pipeline, as we continue on our path to create a major biopharmaceutical company. In the last two months, the momentum has continued as we reported positive data for three potential blockbuster opportunities: ALKS 5461 in major depressive disorder, ALKS 3831 in schizophrenia and ALKS 8700 for multiple sclerosis,” said Richard Pops, Chief Executive Officer of Alkermes. “We have major opportunities ahead in 2015, as we advance this pipeline of valuable CNS medicines. We are preparing to launch aripiprazole lauroxil as an important new treatment option for patients with schizophrenia and their caregivers, and we look forward to continued clinical progress across the rest of our development pipeline in 2015.”

“Our financial results for 2014 were ahead of expectations, demonstrating our successful performance and the strength of our business model. We ended the year with more than $800 million in cash and investments, which provides the financial flexibility to further execute on our strategic plan, including resources to invest in a remarkable late-stage pipeline that we control entirely,” commented James Frates, Chief Financial Officer of Alkermes. “Our financial expectations for 2015 reflect investments in this increasingly valuable late-stage pipeline, as well

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as significant investment in our commercial organization in preparation for the launch of aripiprazole lauroxil later this year.”

Quarter Ended Dec. 31, 2014 Financial Highlights

·                  Total revenues for the quarter grew 13% to $175.2 million from $154.5 million for the same period in the prior year.

·                  Non-GAAP net income was $16.8 million, or a non-GAAP diluted earnings per share (EPS) of $0.11 for the quarter. This compared to non-GAAP net income of $39.9 million, or a non-GAAP diluted EPS of $0.27, for the same period in the prior year and reflected increased investment in the company’s rapidly advancing late-stage pipeline and commercial infrastructure.

·                  GAAP net income was $30.5 million, or a basic GAAP EPS of $0.21 and a diluted GAAP EPS of $0.20, for the quarter, including approximately $60 million that Alkermes earned related to the acquisition of Civitas Therapeutics, Inc. (Civitas) by Acorda Therapeutics, Inc. This compared to GAAP net income of $18.1 million, or a basic GAAP EPS of $0.13 and diluted GAAP EPS of $0.12, for the same period in the prior year.

·                  Free cash flow was $3.5 million for the quarter, compared to $30.0 million for the same period in the prior year.

Quarter Ended Dec. 31, 2014 Financial Results

Revenues

·                  Manufacturing and royalty revenues from the company’s long-acting atypical antipsychotic franchise, RISPERDAL® CONSTA® and INVEGA® SUSTENNA®/XEPLION®, were $70.3 million, compared to $71.2 million for the same period in the prior year.

·                  Manufacturing and royalty revenues from AMPYRA®/FAMPYRA®(1) were $24.3 million, compared to $18.6 million for the same period in the prior year.

·                  Net sales of VIVITROL® were $29.7 million, compared to $20.6 million for the same period in the prior year, representing an increase of 44%.

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·                  Royalty revenue from BYDUREON® was $9.8 million, compared to $7.7 million for the same period in the prior year.

Costs and Expenses

·                  Operating expenses for the quarter ended Dec. 31, 2014 were $190.8 million, compared to $148.6 million for the same period in the prior year, reflecting increased investment in the company’s rapidly advancing development pipeline and prelaunch activities for aripiprazole lauroxil.

·                  Income tax expense for the quarter ended Dec. 31, 2014 was $10.3 million, compared to an income tax benefit of $15.2 million for the same period in the prior year.

Calendar Year 2014 Financial Highlights

·                  Total revenues were $618.8 million in calendar 2014, which included VIVITROL net sales of $94.2 million. This compared to total revenues of $596.3 million for calendar 2013, which included $30.0 million of one-time intellectual property license revenue. Please see the tables at the end of this press release for a detailed breakdown of the revenues from our key commercial products.

·                  Non-GAAP net income was $54.6 million, or a non-GAAP diluted EPS of $0.35, for calendar 2014. This compared to non-GAAP net income of $170.7 million, or a non-GAAP diluted EPS of $1.19, for calendar 2013 and reflected increased investment in the company’s rapidly advancing late-stage pipeline and commercial infrastructure.

·                  GAAP net loss was $30.1 million, or a basic and diluted GAAP loss per share of $0.21, for calendar 2014. This compared to a GAAP net income of $20.6 million, or a basic GAAP EPS of $0.15 and diluted GAAP EPS of $0.14, for calendar 2013.

·                  Free cash flow was $20.9 million for calendar 2014, compared to $143.4 million for calendar 2013.

·                  At Dec. 31, 2014, Alkermes recorded cash and total investments of $801.6 million, compared to $450.0 million at Dec. 31, 2013. The increase in cash reflects the company’s active management of the business and was primarily driven by gross proceeds of $250.0 million related to the sale of Alkermes’ ordinary shares through a registered direct offering in January 2014. Additionally, the company received net proceeds of

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approximately $96 million from the sale of its stakes in Civitas and Acceleron Pharma Inc. and from the sale of two buildings in Athlone, Ireland. At Dec. 31, 2014, the company’s total debt outstanding was $358.0 million.

Financial Expectations for 2015

The following outlines the company’s financial expectations for 2015. The following statements are forward-looking, and actual results may differ materially. Please see “Note Regarding Forward-Looking Statements” at the end of this press release for risks that could cause results to differ materially from these forward-looking statements.

·                  Revenues: The company expects total revenues to range from $640 million to $670 million. Included in this total revenue expectation, Alkermes expects VIVITROL net sales to range from $125 million to $135 million and net sales from the anticipated launch of aripiprazole lauroxil to range from $5 million to $10 million.

·                  Cost of Goods Manufactured and Sold: The company expects cost of goods manufactured and sold to range from $155 million to $165 million.

·                  Research and Development (R&D) Expenses: The company expects R&D expenses to range from $345 million to $365 million.

·                  Selling, General and Administrative (SG&A) Expenses: The company expects SG&A expenses to range from $310 million to $330 million.

·                  Amortization of Intangible Assets: The company expects amortization of intangibles to be approximately $65 million.

·                  Net Interest Expense: The company expects net interest expense to range from $10 million to $15 million.

·                  Income Tax Expense: The company expects income tax expense to range from $10 million to $15 million.

·                  GAAP Net Loss: The company expects a GAAP net loss in the range of $255 million to $285 million, or a basic and diluted loss per share of $1.70 to $1.90, based on a weighted average basic and diluted share count of approximately 150 million shares outstanding.

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·                  Non-GAAP Net Loss: The company expects a non-GAAP net loss in the range of $40 million to $60 million, and non-GAAP basic and diluted EPS to range from $0.27 to $0.40.

·                  Capital Expenditures: The company expects capital expenditures to be approximately $55 million.

·                  Free Cash Flow: The company expects a free cash outflow in the range of $95 million to $115 million.

Conference Call

Alkermes will host a conference call at 8:30 a.m. EST (1:30 p.m. GMT) on Tuesday, Feb. 24, 2015, to discuss these financial results and provide an update on the company. The conference call may be accessed by dialing +1 888 424 8151 for U.S. callers and +1 847 585 4422 for international callers. The conference call ID number is 6037988. In addition, a replay of the conference call will be available from 11:00 a.m. EST (4:00 p.m. GMT) on Tuesday, Feb. 24, 2015, through 5:00 p.m. EST (10:00 p.m. GMT) on Tuesday, March 3, 2015, and may be accessed by visiting Alkermes’ website or by dialing +1 888 843 7419 for U.S. callers and +1 630 652 3042 for international callers. The replay access code is 6037988.

About Alkermes plc

Alkermes plc is a fully integrated, global biopharmaceutical company that applies its scientific expertise and proprietary technologies to develop innovative medicines that improve patient outcomes. The company has a diversified portfolio of more than 20 commercial drug products and a substantial clinical pipeline of product candidates that address central nervous system (CNS) disorders such as addiction, schizophrenia, depression and multiple sclerosis. Headquartered in Dublin, Ireland, Alkermes plc has an R&D center in Waltham, Massachusetts; a research and manufacturing facility in Athlone, Ireland; and manufacturing facilities in Gainesville, Georgia and Wilmington, Ohio. For more information, please visit Alkermes’ website at www.alkermes.com.

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Non-GAAP Financial Measures

This press release includes information about certain financial measures that are not prepared in accordance with generally accepted accounting principles in the U.S. (GAAP), including non-GAAP net income, non-GAAP diluted earnings per share and free cash flow. These non-GAAP measures are not based on any standardized methodology prescribed by GAAP and are not necessarily comparable to similar measures presented by other companies.

Management defines its non-GAAP financial measures as follows:

·      Non-GAAP net income adjusts for one-time and non-cash charges by excluding from GAAP results: share-based compensation expense; amortization; depreciation; non-cash net interest expense; non-cash tax expense; deferred revenue; and certain other one-time or non-cash items.

·      Free cash flow represents non-GAAP net income less capital expenditures.

The company’s management believes that these non-GAAP financial measures, when viewed with the company’s results under GAAP and the accompanying reconciliations, better indicate underlying trends in ongoing operations and cash flows. However, non-GAAP net income, non-GAAP diluted earnings per share and free cash flow are not measures of financial performance under GAAP and, accordingly, should not be considered as alternatives to GAAP measures as indicators of operating performance.

A reconciliation of GAAP to non-GAAP financial measures has been provided in the tables included in this press release.

Note Regarding Forward-Looking Statements

Certain statements set forth above may constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, as amended, including, but not limited to: statements concerning future financial and operating performance, business plans or prospects; the likelihood of continued revenue growth from the company’s commercial products; the therapeutic and commercial value of the company’s products; and expectations concerning the timing and results of clinical development activities, including regulatory approval of aripiprazole lauroxil. The company cautions that forward-looking statements are inherently

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uncertain. Although the company believes that such statements are based on reasonable assumptions within the bounds of its knowledge of its business and operations, the forward-looking statements are neither promises nor guarantees and they are necessarily subject to a high degree of uncertainty and risk. Actual performance and results may differ materially from those expressed or implied in the forward-looking statements due to various risks and uncertainties. These risks and uncertainties include, among others: clinical development activities may not be completed on time or at all and the results of such activities may not be predictive of real-world results or of results in subsequent clinical trials; regulatory submissions may not occur or be submitted in a timely manner; the company, and its partners, may not be able to continue to successfully commercialize its products; there may be a reduction in payment rate or reimbursement for the company’s products or an increase in the company’s financial obligations to governmental payers; the U.S. Food and Drug Administration or regulatory authorities outside the U.S. may make adverse decisions regarding the company’s products; the company’s products may prove difficult to manufacture, be precluded from commercialization by the proprietary rights of third parties, or have unintended side effects, adverse reactions or incidents of misuse; and those risks and uncertainties described under the heading “Risk Factors” in the company’s Transition Report on Form 10-K for the fiscal period ended Dec. 31, 2013, and in any other subsequent filings made by the company with the Securities and Exchange Commission (“SEC”) and which are available on the SEC’s website at www.sec.gov. Existing and prospective investors are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date they are made. The information contained in this press release is provided by the company as of the date hereof and, except as required by law, the company disclaims any intention or responsibility for updating or revising any forward-looking information contained in this press release.

VIVITROL® is a registered trademark of Alkermes, Inc.; RISPERDAL® CONSTA®, INVEGA® SUSTENNA® and XEPLION® are registered trademarks of Johnson & Johnson Corporation; AMPYRA® and FAMPYRA® are registered trademarks of Acorda Therapeutics, Inc.; BYDUREON® is a registered trademark of Amylin Pharmaceuticals, LLC.

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(1)AMPYRA® (dalfampridine) Extended Release Tablets, 10 mg is developed and marketed in the U.S. by Acorda Therapeutics, Inc. and outside the U.S. by Biogen Idec, under a licensing agreement with Acorda Therapeutics, as FAMPYRA® (prolonged-release fampridine tablets).

 (tables follow)

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Alkermes plc and Subsidiaries

Selected Financial Information (Unaudited)

Alkermes plc and Subsidiaries

Selected Financial Information (Unaudited)

Alkermes plc and Subsidiaries

Selected Financial Information (Unaudited)

This selected financial information should be read in conjunction with the consolidated financial statements and notes thereto included in Alkermes plc’s Annual Report on Form 10-K for the year ended December 31, 2014, which the company intends to file in February 2015.

Alkermes plc and Subsidiaries

Revenues for Calendar Year 2014

Alkermes plc and Subsidiaries

2015 Guidance — GAAP to Non-GAAP Adjustments

An itemized reconciliation between projected loss per share on a GAAP basis and projected earnings per share on a non-GAAP basis is as follows:

Projected GAAP and non-GAAP measures reflect mid-points within ranges of estimated guidance.