Arm Holdings's three largest insider shareholders as of September 12, 2026 are Rene A. Haas (Chief Executive Officer, 396.01K shares), Rene A. Haas (Chief Executive Officer, 396.01K shares), Rene A. Haas (Chief Executive Officer, 338.67K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Rene A. Haas | Chief Executive Officer | 338,666 | 0 | 338,666 | 61.0% | 10 Sep, 2026 |
| 2 | Jason Child | Chief Financial Officer | 163,832 | 0 | 163,832 | 29.5% | 31 Aug, 2026 |
| 3 | William Abbey | Chief Commercial Officer | 20,563 | 0 | 20,563 | 3.7% | 03 Jun, 2026 |
| 4 | Laura Kathleen Bartels | Chief Accounting Officer | 12,960 | 0 | 12,960 | 2.3% | 18 Aug, 2026 |
| 5 | Rosemary Schooler | Director | 9,572 | 0 | 9,572 | 1.7% | 19 May, 2026 |
| 6 | Paul E Jacobs | Director | 7,442 | 0 | 7,442 | 1.3% | 19 May, 2026 |
| 7 | Young Sohn | Director | 2,396 | 0 | 2,396 | 0.4% | 19 May, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 31 Aug, 2026 | Rene A. Haas | Chief Executive Officer | Acquired A | 64 | $108.33 | $6.93K | 338,666 | Direct |
| 09 Sep, 2026 | Rene A. Haas | Chief Executive Officer | Acquired A | 425,000 | $0.00 | $0 | 425,000 | Direct |
| 27 Aug, 2026 | Jason Child | Chief Financial Officer | Disposed S | 10,400 | $255.33 | $2.66Mn | 163,832 | Direct |
| 17 Aug, 2026 | Laura Kathleen Bartels | Chief Accounting Officer | Acquired M | 862 | — | — | 12,997 | Direct |
| 17 Aug, 2026 | Laura Kathleen Bartels | Chief Accounting Officer | Acquired M | 819 | — | — | 13,816 | Direct |
| 17 Aug, 2026 | Laura Kathleen Bartels | Chief Accounting Officer | Disposed F | 856 | $271.43 | $232.34K | 12,960 | Direct |
| 17 Aug, 2026 | Laura Kathleen Bartels | Chief Accounting Officer | Disposed M | 862 | $0.00 | $0 | 100,390 | Direct |
| 17 Aug, 2026 | Laura Kathleen Bartels | Chief Accounting Officer | Disposed M | 819 | $0.00 | $0 | 99,571 | Direct |
| 07 Aug, 2026 | Jeffrey Sine | Director | Disposed G | 9,572 | $0.00 | $0 | 0 | Direct |
| 02 Jun, 2026 | Laura Kathleen Bartels | Chief Accounting Officer | Disposed S | 11,306 | $392.70 | $4.44Mn | 12,135 | Direct |
| 01 Jun, 2026 | William Abbey | Chief Commercial Officer | Disposed S | 2,644 | $383.73 | $1.01Mn | 24,485 | Direct |
| 01 Jun, 2026 | William Abbey | Chief Commercial Officer | Disposed S | 3,922 | $415.52 | $1.63Mn | 20,563 | Direct |
| 28 May, 2026 | William Abbey | Chief Commercial Officer | Disposed S | 4,200 | $343.81 | $1.44Mn | 27,129 | Direct |
| 22 May, 2026 | William Abbey | Chief Commercial Officer | Disposed S | 2,300 | $305.82 | $703.39K | 31,329 | Direct |
| 21 May, 2026 | Charlotte Claire Eaton | Chief People Officer | Disposed S | 2,805 | $288.10 | $808.12K | 5,000 | Direct |
| 21 May, 2026 | Charlotte Claire Eaton | Chief People Officer | Disposed S | 2,805 | $288.10 | $808.12K | 5,000 | Direct |
| 21 May, 2026 | William Abbey | Chief Commercial Officer | Disposed S | 4,655 | $287.03 | $1.34Mn | 33,629 | Direct |
| 21 May, 2026 | Charlotte Claire Eaton | Chief People Officer | Disposed S | 5,000 | $291.08 | $1.46Mn | 0 | Direct |
| 21 May, 2026 | Charlotte Claire Eaton | Chief People Officer | Disposed S | 5,000 | $291.08 | $1.46Mn | 0 | Direct |
| 20 May, 2026 | Charlotte Claire Eaton | Chief People Officer | Disposed S | 3,100 | $252.25 | $781.98K | 11,805 | Direct |