Arm

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-07 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: ARM HOLDINGS PLC /UK (ARM) CIK: 0001973239 --- Reporting Owner --- Name: Sine Jeffrey CIK: 0001886826 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Ordinary Shares Date: 2026-08-07 | Code: G (Gift) Shares: -9,572 | Price: $0.00 Shares Owned After: 0 | Ownership: D (Direct) Footnotes: [F1] Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share. [F2] The reporting person transferred 9,572 ADSs to a charitable donor-advised fund. --- Footnotes (Complete Index) --- F1: Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share. F2: The reporting person transferred 9,572 ADSs to a charitable donor-advised fund. --- Signature --- /s/ /s/ George Kanelos, as Attorney-in-Fact for Jeffrey Sine (2026-08-11)