Blair C. Jackson - 05 Aug 2026 Form 4 Insider Report for Alkermes plc. (ALKS)

Reporting relationship: President & CEO, Alkermes plc, Director
Issuer ticker: ALKS
Reported as of: 05 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 07 Aug 2026, 21:17:06 UTC
Prior SEC filing: 04 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Shantale Greenson, attorney-in-fact for Blair C. Jackson

Key filing fact

Blair C. Jackson filed Form 4 for Alkermes plc. (ALKS) on 07 Aug 2026.

Key facts

This page summarizes Blair C. Jackson's Form 4 filing for Alkermes plc. (ALKS).
2 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 07 Aug 2026, 21:17.

Change

Previous filing in this sequence was filed on 04 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001842348 Primary reporting owner

Jackson Blair Curtis

Relationship: President & CEO, Alkermes plc, Director
Address: CONNAUGHT HOUSE, 1 BURLINGTON ROAD, DUBLIN 4 IRELAND, IRELAND
Signature: /s/ Shantale Greenson, attorney-in-fact for Blair C. Jackson
Signature date: 07 Aug 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

ALKS transaction Derivative

Employee Stock Option (Right to Buy)

Award

Transaction value
Shares: +93,229
Change %
Price: $0.000000^*
Shares after: 93,229
Date: 05 Aug 2026
Ownership: Direct
Underlying class: Ordinary Shares
Underlying amount: 93,229
Exercise price: $49.61
Footnotes: F1, F2

ALKS transaction Derivative

Employee Stock Option (Right to Buy)

Award

Transaction value
Shares: +124,305
Change %
Price: $0.000000^*
Shares after: 124,305
Date: 05 Aug 2026
Ownership: Direct
Underlying class: Ordinary Shares
Underlying amount: 124,305
Exercise price: $49.61
Footnotes: F1, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

This award was granted in connection with the reporting person's appointment as President and Chief Executive Officer.

Footnote F2

Shares underlying the stock option vest and become exercisable in four equal annual installments, commencing on 8/5/2027.

Footnote F3

Shares underlying the stock option shall vest and become exercisable, if at all, in two tranches based upon the closing price of an ordinary share of Alkermes plc, as reported by the Nasdaq Global Select Market or another national securities exchange on which Alkermes plc's ordinary shares are listed, trading at certain pre-specified levels for 30 consecutive trading days, subject in each case to the reporting person's completion of two years of continuous service (or less, in the event of a change in control) in the role of President and Chief Executive Officer. This award expires ten years from the date of grant.