Blair C. Jackson - 02 Mar 2026 Form 4 Insider Report for Alkermes plc. (ALKS)

Role
EVP, Chief Operating Officer
Signature
/s/ Shantale Greenson, attorney-in-fact for Blair C. Jackson
Issuer symbol
ALKS
Transactions as of
02 Mar 2026
Net transactions value
$0
Form type
4
Filing time
04 Mar 2026, 20:17:13 UTC
Previous filing
27 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Jackson Blair Curtis EVP, Chief Operating Officer 900 WINTER STREET, WALTHAM /s/ Shantale Greenson, attorney-in-fact for Blair C. Jackson 04 Mar 2026 0001842348

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 Employee Stock Option (Right to Buy) Award +94,900 $0.000000* 94,900 02 Mar 2026 Ordinary Shares 94,900 $30.25 Direct F1
transaction ALKS Restricted Stock Unit Award Award +44,078 $0.000000* 44,078 02 Mar 2026 Ordinary Shares 44,078 Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares underlying the stock option vest and become exercisable in four equal annual installments, commencing on 3/2/2027.
F2 Each restricted stock unit represents a contingent right to receive one ordinary share.
F3 Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 3/2/2027.