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Alkermes (NASDAQ: ALKS) director reports RSU vesting, option grant and tax-share withholding

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

Rhea-AI Filing Summary

Alkermes plc director Nancy Lurker reported routine equity compensation and related share activity. On May 20, 2026, she received a grant of 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, expiring on May 20, 2036.

On May 21, 2026, 6,142 Restricted Stock Units were exercised into ordinary shares, and 1,475 shares were disposed of at $36.95 per share to satisfy tax obligations. Following these transactions, she directly held 18,222 ordinary shares.

Positive

  • None.

Negative

  • None.
Insider Lurker Nancy
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 1,475 $36.95 $55K
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 — 19,697 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 award vest (and if applicable, become exercisable) in full on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual general meeting of shareholders that occurs at least 50 weeks after the date of grant. This award is fully vested in accordance with its terms.
Tax-withholding shares 1,475 shares at $36.95 Shares disposed to cover tax liability on May 21, 2026
RSUs exercised 6,142 Restricted Stock Units Converted into ordinary shares on May 21, 2026
Shares held after transactions 18,222 ordinary shares Direct ownership following non-derivative transactions
New RSU grant 5,409 Restricted Stock Units Equity award granted on May 20, 2026
New stock option grant 11,538-share option at $36.98 Non Qualified Stock Option expiring May 20, 2036
Restricted Stock Unit financial
"Each restricted stock unit represents a contingent right to receive one ordinary share."
A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.
Non Qualified Stock Option financial
"Non Qualified Stock Option (Right to Buy) for 11,538 ordinary shares at $36.98."
tax-withholding disposition financial
"Transaction coded F reflects a tax-withholding disposition of 1,475 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 described as Exercise or conversion of derivative security."
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*
Lurker Nancy

(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)19,697D
Ordinary Shares05/21/2026F1,475D$36.9518,222D
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)$36.9805/20/2026A11,538 (2)05/20/2036Ordinary Shares11,538$011,538D
Restricted Stock Unit Award(1)05/20/2026A5,409 (2) (2)Ordinary Shares5,409$05,409D
Restricted Stock Unit Award(1)05/21/2026M6,142 (3) (3)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 award vest (and if applicable, become exercisable) in full on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual general meeting of shareholders that occurs at least 50 weeks after the date of grant.
3. This award is fully vested in accordance with its terms.
/s/ Shantale Greenson, attorney-in-fact for Nancy Lurker05/22/2026
** 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 did Alkermes (ALKS) director Nancy Lurker report in this Form 4?

Nancy Lurker reported routine equity compensation and related share activity. She received new Restricted Stock Units and stock options, exercised previously granted RSUs into ordinary shares, and had a portion of those shares withheld to cover tax obligations, updating her direct holdings.

How many Alkermes (ALKS) shares were withheld for Nancy Lurker’s taxes?

Lurker had 1,475 ordinary shares disposed of at $36.95 per share to satisfy tax liabilities. This tax-withholding disposition is coded “F” and represents shares delivered to cover taxes, not an open-market sale initiated as an investment decision.

What new equity awards did Nancy Lurker receive from Alkermes (ALKS)?

She received a grant of 5,409 Restricted Stock Units and a Non Qualified Stock Option for 11,538 ordinary shares at an exercise price of $36.98. These awards are part of her director compensation and can convert into ordinary shares under their terms.

How many Alkermes (ALKS) shares did Nancy Lurker acquire through RSU vesting?

On May 21, 2026, 6,142 Restricted Stock Units were exercised into ordinary shares for Lurker. RSU exercises convert previously granted contingent units into actual shares once vesting conditions are met, increasing her direct share ownership before any tax withholding.

What are Nancy Lurker’s Alkermes (ALKS) direct holdings after these transactions?

After the reported transactions, Lurker directly held 18,222 ordinary shares of Alkermes. This figure reflects the net effect of RSU exercises adding shares and the tax-withholding disposition reducing shares, as disclosed in the non-derivative transaction details.

What are the key terms of Nancy Lurker’s new Alkermes (ALKS) stock options?

Her new Non Qualified Stock Option covers 11,538 ordinary shares at an exercise price of $36.98 per share and expires on May 20, 2036. This option gives her the right, but not the obligation, to buy shares at that fixed price.