Jackson Blair Curtis 4

What Happened

• Jackson Blair Curtis, Chief Operating Officer of Alkermes plc, exercised/conversion of derivatives on Feb 18 and Feb 19, 2026, converting a total of 18,197 underlying shares (8,897 on 2/18 and 9,300 on 2/19). To cover tax liabilities, 3,796 shares were withheld/ disposed on 2/18 at $32.02 for $121,548, and 4,130 shares were withheld/ disposed on 2/19 at $32.00 for $132,160 — a total of 7,926 shares and approximately $253,708 returned to cover taxes. Transaction codes show M = exercise/conversion of derivative and F = payment of exercise price or tax liability (share withholding).

Key Details

• Dates and prices:
  • 2026-02-18: exercised 8,897 shares (M); 3,796 shares withheld @ $32.02 for $121,548 (F).
  • 2026-02-19: exercised 9,300 shares (M); 4,130 shares withheld @ $32.00 for $132,160 (F).
• Shares owned after transaction: not specified in the provided filing.
• Footnotes of note:
  • F1: Each restricted stock unit (RSU) equals one ordinary share.
  • F2: Indicates an award is fully vested in accordance with its terms.
  • F3: Another award vests in four equal annual installments starting 2/19/2026.
• Filing timeliness: Report filed 2026-02-20 for transactions on 2/18–2/19; filing appears timely (Form 4 is generally due within two business days).

Context

• These transactions represent exercise/conversion of derivatives (M) with a portion of shares withheld to satisfy tax obligations (F). That withholding is effectively a cashless settlement of taxes and is routine for insiders; it is not an open-market sale signaling a directional view. No evidence in the filing of a 10b5-1 plan or of additional open-market trades.