Form 4 Filing by ARM HOLDINGS PLC /UK

Charlotte Claire Eaton, Chief People Officer of ARM HOLDINGS PLC /UK, reported a disposition of securities on May 20, 2026, and May 21, 2026. On May 20, 2026, 3,100 ordinary shares were sold at an average price of $252.25 per share, resulting in 11,805 shares remaining. On May 21, 2026, an additional 4,000 ordinary shares were sold at an average price of $282.77 per share, leaving 7,805 shares. The sales were conducted under transaction code "S", indicating a disposition. The shares are held in the form of American Depositary Shares (ADSs), with each ADS representing one ordinary share. Detailed pricing information for the sales is available upon request.