Craig C. Hopkinson - 01 Dec 2025 Form 4 Insider Report for Alkermes plc. (ALKS)

Signature
/s/ Shantale Greenson, attorney-in-fact for Craig C. Hopkinson
Issuer symbol
ALKS
Transactions as of
01 Dec 2025
Net transactions value
-$117,200
Form type
4
Filing time
01 Dec 2025, 17:41:32 UTC
Previous filing
03 Nov 2025
Next filing
05 Dec 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Hopkinson Craig C. EVP R&D, Chief Medical Officer 900 WINTER ST., WALTHAM /s/ Shantale Greenson, attorney-in-fact for Craig C. Hopkinson 01 Dec 2025 0001730048

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALKS Ordinary Shares Sale $117,200 -4,000 -5.7% $29.30 65,740 01 Dec 2025 Direct F1
* 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 sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 3/14/2025.