STOCK TITAN

Alkermes (NASDAQ: ALKS) director logs RSU exercise, new option and RSU grants

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Alkermes plc director Shane Cooke reported routine equity compensation activity and related tax withholding. He exercised 6,142 restricted stock units into ordinary shares and had 3,207 shares withheld to cover tax obligations at a price of $36.95 per share, which is not an open-market sale.

Cooke also received new awards on May 20, 2026, including 5,409 restricted stock units and a non-qualified stock option for 11,538 ordinary shares with an exercise price of $36.98 per share, both vesting in full on May 20, 2027. Following these transactions, he holds 109,886 ordinary shares directly.

Positive

  • None.

Negative

  • None.
Insider Cooke Shane
Role null
Type Security Shares Price Value
Exercise Restricted Stock Unit Award 6,142 $0.00 --
Exercise Ordinary Shares 6,142 $0.00 --
Tax Withholding Ordinary Shares 3,207 $36.95 $118K
Grant/Award Non Qualified Stock Option (Right to Buy) 11,538 $0.00 --
Grant/Award Restricted Stock Unit Award 5,409 $0.00 --
Holdings After Transaction: Restricted Stock Unit Award — 0 shares (Direct, null); Ordinary Shares — 109,886 shares (Direct, null); Non Qualified Stock Option (Right to Buy) — 11,538 shares (Direct, null)
Footnotes (1)
  1. Each restricted stock unit represents a contingent right to receive one ordinary share. Shares subject to the stock option award vest and become exercisable in full on 5/20/2027. Shares subject to the restricted stock unit award vest in full on 5/20/2027. This award is fully vested in accordance with its terms.
RSUs exercised 6,142 shares Restricted stock units converted into ordinary shares on May 21, 2026
Tax-withholding shares 3,207 shares at $36.95/share Shares withheld to cover tax liability on May 21, 2026
Post-transaction holdings 109,886 shares Ordinary shares directly held after reported transactions
New RSU grant 5,409 units Restricted stock unit award granted on May 20, 2026, vesting May 20, 2027
New stock option grant 11,538 options at $36.98 Non-qualified stock option granted May 20, 2026; expires May 20, 2036
Restricted Stock Unit Award financial
"The filing lists a transaction in "Restricted Stock Unit Award" with 6,142 shares exercised."
A restricted stock unit award is a promise by a company to give an employee a specified number of company shares at a future date if certain conditions are met, such as staying with the company or hitting performance goals. For investors, these awards matter because they can increase the total number of shares outstanding when converted, diluting existing holders, and they align employees’ incentives with shareholders’ interests much like giving a rising bonus that becomes real only after conditions are satisfied.
Non Qualified Stock Option (Right to Buy) financial
"A "Non Qualified Stock Option (Right to Buy)" for 11,538 shares was granted."
tax-withholding disposition financial
"The transaction summary describes a tax-withholding disposition of 3,207 shares."
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
derivative security financial
"Code M is defined as "Exercise or conversion of derivative security" in the description."
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a 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). See Instruction 10.
1. Name and Address of Reporting Person*
Cooke Shane

(Last)(First)(Middle)
CONNAUGHT HOUSE
1 BURLINGTON ROAD

(Street)
DUBLIN4 Ireland

(City)(State)(Zip)

IRELAND

(Country)
2. Issuer Name and Ticker or Trading Symbol
Alkermes plc. [ ALKS ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/20/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Ordinary Shares05/21/2026M6,142A(1)109,886D
Ordinary Shares05/21/2026F3,207D$36.95106,679D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Non Qualified Stock Option (Right to Buy)$36.9805/20/2026A11,53805/20/2027(2)05/20/2036Ordinary Shares11,538$011,538D
Restricted Stock Unit Award(1)05/20/2026A5,40905/20/2027(3) (3)Ordinary Shares5,409$05,409D
Restricted Stock Unit Award(1)05/21/2026M6,142 (4) (4)Ordinary Shares6,142(1)0D
Explanation of Responses:
1. Each restricted stock unit represents a contingent right to receive one ordinary share.
2. Shares subject to the stock option award vest and become exercisable in full on 5/20/2027.
3. Shares subject to the restricted stock unit award vest in full on 5/20/2027.
4. This award is fully vested in accordance with its terms.
/s/ Shantale Greenson, attorney-in-fact for Shane Cooke05/22/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did Alkermes (ALKS) director Shane Cooke report?

Shane Cooke reported exercising 6,142 restricted stock units into ordinary shares and a related tax-withholding disposition of 3,207 shares. He also received new grants of 5,409 restricted stock units and a non-qualified stock option for 11,538 shares as equity compensation.

Did Shane Cooke sell Alkermes (ALKS) shares in the open market?

No open-market sales were reported. The only disposition was 3,207 ordinary shares withheld at $36.95 per share to satisfy tax obligations on vested equity. Tax-withholding dispositions are administrative and do not represent discretionary selling into the market.

What new equity awards did Shane Cooke receive from Alkermes (ALKS)?

Cooke received 5,409 restricted stock units and a non-qualified stock option for 11,538 ordinary shares at an exercise price of $36.98 per share. Both awards vest in full on May 20, 2027, subject to their standard terms and conditions.

How many Alkermes (ALKS) shares does Shane Cooke hold after these transactions?

After the reported transactions, Shane Cooke directly holds 109,886 ordinary shares. This figure reflects the exercise of 6,142 restricted stock units and the tax withholding of 3,207 shares, as disclosed in the filing’s post-transaction ownership data.

What is the significance of the tax-withholding disposition in the Alkermes (ALKS) Form 4?

The 3,207-share tax-withholding disposition is used to cover tax liabilities on vested equity. It is processed by delivering shares back at $36.95 per share and does not indicate a voluntary open-market sale or a change in investment view.

When do Shane Cooke’s new Alkermes (ALKS) equity awards vest and expire?

The 5,409 restricted stock units and 11,538-share non-qualified stock option both vest fully on May 20, 2027. The stock option has an expiration date of May 20, 2036, after which any unexercised portion would lapse under its terms.