Brian C. White
Brian C. White: Director at FormFactor and Director at Allegro MicroSystems. What Brian C. White holds in 2 AI and semiconductor companies tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.
FormFactor (FORM)
Brian C. White holds 8,653 FormFactor shares (0.01% of the company), worth about $1.3M at the last price, according to the Form 4 of May 20, 2026.
- Shares held: 8,653 (0.01%), $1.3M — Held in their own name.
Allegro MicroSystems (ALGM)
Brian C. White holds 594 Allegro MicroSystems shares (0.00% of the company), worth about $23,082.84 at the last price, according to the Form 4 of Jun 17, 2026.
- Shares held: 594 (0.00%), $23,082.84 — Held in their own name.
- Share units: 4,251 (0.00%), $165,193.86 — Allegro MicroSystems promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
Declarations
- Allegro MicroSystems (ALGM) — Form 4 of Aug 5, 2026 0001193125-26-339100
- Allegro MicroSystems (ALGM) — Form 4 of Jun 17, 2026: grant or award of 594; 594 shares after 0001193125-26-275927
- Allegro MicroSystems (ALGM) — Form 3 of Jun 17, 2026; 0 shares after 0001193125-26-275886
- FormFactor (FORM) — Form 4 of May 20, 2026: open-market sale of 3,250 at $126.00; 8,653 shares after 0001628280-26-037432
- FormFactor (FORM) — Form 4 of May 15, 2026: grant or award of 1,347; 11,903 shares after 0001628280-26-036632
- FormFactor (FORM) — Form 4 of Feb 24, 2026: open-market sale of 2,300 at $100.01; 10,556 shares after 0001628280-26-011690
- FormFactor (FORM) — Form 4 of Feb 9, 2026: open-market sale of 5,500 at $90.95; 12,856 shares after 0001628280-26-006935
- FormFactor (FORM) — Form 4 of May 16, 2025: grant or award of 6,528; 18,356 shares after 0001039399-25-000059
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.