Samuel Joseph Parisi - 02 Mar 2026 Form 4 Insider Report for Alkermes plc. (ALKS)

Signature
/s/ Shantale Greenson, attorney-in-fact for Samuel Joseph Parisi
Issuer symbol
ALKS
Transactions as of
02 Mar 2026
Net transactions value
-$201,808
Form type
4
Filing time
04 Mar 2026, 20:19:23 UTC
Previous filing
27 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Parisi Samuel Joseph VP, Finance (Interim PAO) 900 WINTER STREET, WALTHAM /s/ Shantale Greenson, attorney-in-fact for Samuel Joseph Parisi 04 Mar 2026 0002010945

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ALKS Ordinary Shares Sale $201,808 -6,890 -47% $29.29 7,717 02 Mar 2026 Direct F1

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 +15,033 $0.000000* 15,033 02 Mar 2026 Ordinary Shares 15,033 $30.25 Direct F2
transaction ALKS Restricted Stock Unit Award Award +14,176 $0.000000* 14,176 02 Mar 2026 Ordinary Shares 14,176 Direct F3, 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 sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 11/7/2025.
F2 Shares underlying the stock option vest and become exercisable in four equal annual installments, commencing on 3/2/2027.
F3 Each restricted stock unit represents a contingent right to receive one ordinary share.
F4 Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 3/2/2027.