Shane Cooke - 02 Feb 2026 Form 4 Insider Report for Alkermes plc. (ALKS)

Role
Director
Signature
/s/ Shantale Greenson, attorney-in-fact for Shane Cooke
Issuer symbol
ALKS
Transactions as of
02 Feb 2026
Net transactions value
-$179,305
Form type
4
Filing time
02 Feb 2026, 20:48:51 UTC
Previous filing
02 Jun 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Cooke Shane Director CONNAUGHT HOUSE, 1 BURLINGTON ROAD, DUBLIN /s/ Shantale Greenson, attorney-in-fact for Shane Cooke 02 Feb 2026 0001524823

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALKS Ordinary Shares Options Exercise $1,936,368 +61,200 +59% $31.64 164,944 02 Feb 2026 Direct F1
transaction ALKS Ordinary Shares Sale $998,795 -29,087 -18% $34.34 135,857 02 Feb 2026 Direct F1, F2
transaction ALKS Ordinary Shares Sale $1,116,877 -32,113 -24% $34.78 103,744 02 Feb 2026 Direct F1, F3

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) Options Exercise $0 -61,200 -100% $0.000000 0 02 Feb 2026 Ordinary Shares 61,200 $31.64 Direct F1, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 This exercise and sale of expiring options was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 2/27/25.
F2 The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $33.6923 to $34.69. Full information regarding the number of shares sold at each separate price can be provided to the issuer, any security holder of the issuer or the SEC staff upon request.
F3 The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $34.70 to $34.91. Full information regarding the number of shares sold at each separate price can be provided to the issuer, any security holder of the issuer or the SEC staff upon request.
F4 These options are fully vested in accordance with their terms.