David Joseph Gaffin - 26 Feb 2026 Form 4 Insider Report for Alkermes plc. (ALKS)

Role
EVP, CLO, Alkermes, Inc.
Signature
/s/ Shantale Greenson, attorney-in-fact for David Joseph Gaffin
Issuer symbol
ALKS
Transactions as of
26 Feb 2026
Net transactions value
-$93,696
Form type
4
Filing time
27 Feb 2026, 16:37:24 UTC
Previous filing
25 Feb 2026
Next filing
04 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Gaffin David Joseph EVP, CLO, Alkermes, Inc. 900 WINTER STREET, WALTHAM /s/ Shantale Greenson, attorney-in-fact for David Joseph Gaffin 27 Feb 2026 0001675905

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALKS Ordinary Shares Options Exercise +6,866 +2.9% 242,743 26 Feb 2026 Direct F1
transaction ALKS Ordinary Shares Tax liability $93,696 -3,049 -1.3% $30.73 239,694 26 Feb 2026 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ALKS Restricted Stock Unit Award Options Exercise -6,866 -33% 13,732 26 Feb 2026 Ordinary Shares 6,866 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit represents a contingent right to receive one ordinary share.
F2 Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/26/2025.