Gaffin David Joseph 4
4 · Alkermes plc. · Filed Mar 4, 2026
Insider Transaction Report
Form 4
Alkermes plc.ALKS
Gaffin David Joseph
EVP, CLO, Alkermes, Inc.
Transactions
- Sale
Ordinary Shares
[F1]2026-03-02$29.29/sh−2,034$59,576→ 237,660 total - Sale
Ordinary Shares
[F1]2026-03-03$29.76/sh−2,034$60,532→ 235,626 total - Award
Employee Stock Option (Right to Buy)
[F2]2026-03-02+78,292→ 78,292 totalExercise: $30.25Exp: 2036-03-02→ Ordinary Shares (78,292 underlying) - Award
Restricted Stock Unit Award
[F3][F4]2026-03-02+36,364→ 36,364 total→ Ordinary Shares (36,364 underlying)
Footnotes (4)
- [F1]This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 11/19/2025.
- [F2]Shares underlying the stock option vest and become exercisable in four equal annual installments, commencing on 3/2/2027.
- [F3]Each restricted stock unit represents a contingent right to receive one ordinary share.
- [F4]Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 3/2/2027.
Signature
/s/ Shantale Greenson, attorney-in-fact for David Joseph Gaffin|2026-03-04