Michael P. Plisinski
Michael P. Plisinski: Chief Executive Officer · Director at Onto Innovation. What Michael P. Plisinski 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.
Onto Innovation (ONTO)
Michael P. Plisinski holds 179,242 Onto Innovation shares (0.37% of the company), worth about $58.6M at the last price, according to the Form 4 of Mar 3, 2026.
- Shares held: 179,242 (0.37%), $58.6M — Held in their own name.
- Share units: 11,606 (0.02%), $3.8M — Onto Innovation promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
- Share units: 11,606 (0.02%), $3.8M — Onto Innovation promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
- Share units: 7,239 (0.01%), $2.4M — Onto Innovation promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
- Share units: 7,239 (0.01%), $2.4M — Onto Innovation promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
Declarations
- Onto Innovation (ONTO) — Form 4 of Mar 3, 2026 (Chief Executive Officer): grant or award of 14,479; shares withheld for tax of 3,742 at $207.50; 179,242 shares after 0001325550-26-000006
- Onto Innovation (ONTO) — Form 4 of Mar 1, 2026 (Chief Executive Officer): option exercise or conversion of 4,597; shares withheld for tax of 2,222 at $215.89; 168,505 shares after 0001325550-26-000004
- Onto Innovation (ONTO) — Form 4 of Feb 14, 2026 (Chief Executive Officer): option exercise or conversion of 18,445; shares withheld for tax of 8,919 at $217.23; 168,055 shares after 0001325550-26-000002
- Onto Innovation (ONTO) — Form 4 of Dec 24, 2025 (Chief Executive Officer): gift of 25,000; 162,161 shares after 0001325550-25-000004
- Onto Innovation (ONTO) — Form 4 of Mar 3, 2025 (CEO): grant or award of 23,212; 187,161 shares after 0002022859-25-000041
- Onto Innovation (ONTO) — Form 4 of Mar 1, 2025 (CEO): shares withheld for tax of 1,925 at $145.66; 163,949 shares after 0002022859-25-000031
- Onto Innovation (ONTO) — Form 4 of Feb 14, 2025 (CEO): option exercise or conversion of 23,650; shares withheld for tax of 11,435 at $176.55; 165,874 shares after 0002022859-25-000023
- Onto Innovation (ONTO) — Form 4 of Feb 10, 2025 (CEO): shares withheld for tax of 2,859 at $183.28; option exercise or conversion of 19,048; 157,471 shares after 0002022859-25-000012
- Onto Innovation (ONTO) — Form 4 of Jan 21, 2025 (CEO): open-market sale of 35,000 at $219.19; 150,492 shares after 0002022859-25-000008
- Onto Innovation (ONTO) — Form 4 of Jan 16, 2025 (CEO): open-market sale of 29,900 at $211.24; open-market sale of 100 at $212.11; 185,492 shares after 0002022859-25-000006
- Onto Innovation (ONTO) — Form 4 of Jan 14, 2025 (CEO): open-market sale of 18,268 at $200.09; open-market sale of 1,732 at $201.26; 215,492 shares after 0002022859-25-000003
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.