William Abbey
William Abbey: Chief Commercial Officer at Arm Holdings. What William Abbey holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.
Arm Holdings (ARM)
William Abbey holds 20,563 Arm Holdings shares (0.00% of the company), worth about $5.3M at the last price, according to the Form 4 of Jun 1, 2026.
- Shares held: 20,563 (0.00%), $5.3M — Held in their own name.
- Share units: 65,270 (0.01%), $16.7M — Arm Holdings promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
Declarations
- Arm Holdings (ARM) — Form 4 of Sep 14, 2026 (Chief Commercial Officer) 0001973239-26-000133
- Arm Holdings (ARM) — Form 4 of Jun 1, 2026 (Chief Commercial Officer): open-market sale of 2,644 at $383.73; open-market sale of 3,922 at $415.52; 20,563 shares after 0001973239-26-000105
- Arm Holdings (ARM) — Form 4 of May 28, 2026 (Chief Commercial Officer): open-market sale of 4,200 at $343.81; 27,129 shares after 0001973239-26-000103
- Arm Holdings (ARM) — Form 4 of May 22, 2026 (Chief Commercial Officer): open-market sale of 2,300 at $305.82; 31,329 shares after 0001973239-26-000101
- Arm Holdings (ARM) — Form 4 of May 21, 2026 (Chief Commercial Officer): open-market sale of 4,655 at $287.03; 33,629 shares after 0001973239-26-000091
- Arm Holdings (ARM) — Form 4 of May 20, 2026 (Chief Commercial Officer): open-market sale of 10,887 at $224.14; open-market sale of 5,069 at $257.18; 38,284 shares after 0001973239-26-000084
- Arm Holdings (ARM) — Form 4 of May 15, 2026 (Chief Commercial Officer): grant or award of 4,466; option exercise or conversion of 1,751; 54,240 shares after 0001973239-26-000078
- Arm Holdings (ARM) — Form 3 of Mar 18, 2026 (Chief Commercial Officer); 48,201 shares after 0001973239-26-000043
Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.
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