Spencer Collins

Spencer Collins: Chief Legal Officer at Arm Holdings. What Spencer Collins 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)

Spencer Collins holds 0 Arm Holdings shares (0.00% of the company), worth about $0.00 at the last price, according to the Form 4 of May 19, 2026.

• Share units: 138,760 (0.01%), $30.7M — 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 May 19, 2026 (Chief Legal Officer): open-market sale of 40,941 at $215.00; 0 shares after 0001973239-26-000086
• Arm Holdings (ARM) — Form 4 of May 15, 2026 (Chief Legal Officer): grant or award of 10,668; option exercise or conversion of 4,184; 40,941 shares after 0001973239-26-000074
• Arm Holdings (ARM) — Form 4 of May 11, 2026 (Chief Legal Officer): open-market sale of 836 at $207.77; open-market sale of 1,849 at $208.68; 0 shares after 0001973239-26-000064
• Arm Holdings (ARM) — Form 3 of Mar 18, 2026 (Chief Legal Officer); 51,961 shares after 0001973239-26-000039

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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