JACOBS PAUL E 4

What Happened
Paul E. Jacobs, a director of Arm Holdings plc (ARM), had restricted stock units (RSUs) vest on May 15, 2026. The Form 4 shows conversion/exercise of 2,141 derivative units and a simultaneous disposition of 2,141 derivative units at $0.00, plus a grant/award acquisition of 1,531 shares at $0.00. Each reported share is an American Depositary Share (ADS) representing one ordinary share. Net effect in this filing: Jacobs acquired 1,531 ADSs.

Key Details

• Transaction date: May 15, 2026; Form 4 filed May 19, 2026 (filed four days after the transaction). Form 4s are generally due within two business days, so this filing appears late.
• Reported transactions:
  • Exercise/conversion (code M): 2,141 shares acquired (price N/A)
  • Exercise/conversion (code M): 2,141 shares disposed at $0.00 (derivative)
  • Grant/award (code A): 1,531 shares acquired at $0.00 (derivative)
• Net change reported on this filing: +1,531 ADSs to Jacobs’ holdings.
• Footnotes: F1—Ordinary shares are held as ADSs (1 ADS = 1 ordinary share). F2—RSUs vested in full on May 15, 2026. F3—Each RSU converts to 1 ADS. F4—A separate RSU award will vest in full on May 15, 2027 subject to continued service.
• Shares owned after the transaction: not specified in the provided filing excerpt.

Context
Dispositions reported at $0.00 commonly reflect shares withheld or netted to satisfy tax-withholding obligations on vesting rather than an open-market sale. This filing reports a routine vesting/conversion of RSUs by a director rather than a market sale or open-market purchase.