Blair C. Jackson - 18 Feb 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
18 Feb 2026
Net transactions value
-$253,708
Form type
4
Filing time
20 Feb 2026, 16:23:16 UTC
Previous filing
06 Feb 2026
Next filing
25 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 ST., WALTHAM /s/ Shantale Greenson, attorney-in-fact for Blair C. Jackson 20 Feb 2026 0001842348

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALKS Ordinary Shares Options Exercise +8,897 +4% 230,449 18 Feb 2026 Direct F1
transaction ALKS Ordinary Shares Tax liability $121,548 -3,796 -1.6% $32.02 226,653 18 Feb 2026 Direct
transaction ALKS Ordinary Shares Options Exercise +9,300 +4.1% 235,953 19 Feb 2026 Direct F1
transaction ALKS Ordinary Shares Tax liability $132,160 -4,130 -1.8% $32.00 231,823 19 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 -8,897 -100% 0 18 Feb 2026 Ordinary Shares 8,897 Direct F1, F2
transaction ALKS Restricted Stock Unit Award Options Exercise -9,300 -25% 27,903 19 Feb 2026 Ordinary Shares 9,300 Direct F1, F3
* 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 This award is fully vested in accordance with its terms.
F3 Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/19/2026.