Alkermes plc (NASDAQ:ALKS) Q4 2019 Earnings Conference Call February 13, 2020 8:00 AM ET Company Participants Sandra Coombs - Vice President, Investor Relations Richard Pops - Chairman and Chief Executive Officer James Frates - Senior Vice President and Chief Financial Officer Iain Brown - Senior Vice President, Finance and Chief Accounting Officer Conference Call Participants Jason Gerberry - Bank of America Pamela Barendt - Cowen and Company Umer Raffat - Evercore Matthew Holt - JPMorgan Chase & Co. Brand ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 for the fiscal year ended December 31, 2019 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: 001-35299 ALKERMES PUBLIC LIMITED COMPANY (Exact name of registrant as specified in its charter) Ireland (State or oth ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35299 ALKERMES PUBLIC LIMITED COMPANY (Exact name of registrant as specified in its charter) Ireland 98-1007018 (State or other jurisdiction of incorporation ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35299 ALKERMES PUBLIC LIMITED COMPANY (Exact name of registrant as specified in its charter) Ireland 98-1007018 (State or other jurisdiction of incorporation or or ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35299 ALKERMES PUBLIC LIMITED COMPANY (Exact name of registrant as specified in its charter) Ireland 98-1007018 (State or other jurisdiction of incorporation or o ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10‑K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 for the fiscal year ended December 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: 001‑35299 ALKERMES PUBLIC LIMITED COMPANY (Exact name of registrant as specified in its charter) Ireland (State or oth ...