Haas Rene A. 4

What Happened Rene A. Haas, CEO of ARM Holdings plc (ARM), sold a total of 31,853 ADSs (each ADS = 1 ordinary share) in open-market transactions on March 25–26, 2026, for aggregate proceeds of approximately $5,131,329. The sales were executed under a Rule 10b5‑1 trading plan adopted June 11, 2025. The trades occurred across multiple lots at prices roughly between $160.00 and $163.58 per ADS.

Key Details

• Transaction dates: March 25, 2026 (23,867 shares, ~$3,846,726) and March 26, 2026 (7,986 shares, ~$1,284,603). Total: 31,853 ADSs for ~$5.13M.
• Per-lot examples (all sales): 1,092 @ $163.35; 4,830 @ $162.62; 6,196 @ $161.47; 11,749 @ $160.22; 200 @ $163.15; 600 @ $162.19; 1,842 @ $161.47; 5,344 @ $160.41.
• Price range reported across grouped sales: $160.00 to $163.58 (weighted-average ranges provided in footnotes). Reporting person offers to provide per-price details to the SEC upon request.
• Footnotes: F1—ADSs represent ordinary shares (1 ADS = 1 Ordinary Share). F2—transactions effected pursuant to a 10b5‑1 plan adopted 6/11/2025. Other footnotes (F3–F9) explain weighted-average pricing and per-price availability.
• Shares owned after transaction: not specified in the excerpt of the filing provided here.
• Filing timeliness: no late filing flag provided in the supplied data.

Context These transactions are sales (liquidity events) and do not by themselves indicate management’s view of ARM’s prospects. The use of a pre-established Rule 10b5‑1 plan means the trades were conducted according to a pre-set program, which is commonly used to avoid timing concerns. Retail investors should consider insider sales alongside other factors (company results, insider buying, and broader market conditions) before drawing conclusions.