Michael P. Plisinski
CEO at Onto Innovation Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Onto Innovation Inc., 3 years.
Chief executive roles
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 20, 2024 | Onto Innovation Inc. | Open-market sale | โ4,344 | $172.83 | $750,774 |
| Mar 20, 2024 | Onto Innovation Inc. | Open-market sale | โ6,270 | $173.96 | $1,090,729 |
| Mar 20, 2024 | Onto Innovation Inc. | Open-market sale | โ2,060 | $174.79 | $360,067 |
| Mar 20, 2024 | Onto Innovation Inc. | Open-market sale | โ22,596 | $176.00 | $3,976,896 |
| Mar 20, 2024 | Onto Innovation Inc. | Open-market sale | โ1,816 | $177.04 | $321,505 |
| Mar 20, 2024 | Onto Innovation Inc. | Open-market sale | โ2,914 | $178.16 | $519,158 |
| Mar 1, 2024 | Onto Innovation Inc. | Grant or award | +11,943 | โ | โ |
| Feb 14, 2024 | Onto Innovation Inc. | Shares withheld for tax | โ3,812 | $173.08 | $659,781 |
| Feb 10, 2024 | Onto Innovation Inc. | Shares withheld for tax | โ3,071 | $180.01 | $552,811 |
| Feb 10, 2024 | Onto Innovation Inc. | Option exercise | +19,050 | โ | โ |
| Feb 10, 2024 | Onto Innovation Inc. | Shares withheld for tax | โ9,211 | $180.01 | $1,658,072 |
| Feb 8, 2024 | Onto Innovation Inc. | Shares withheld for tax | โ4,032 | $164.76 | $664,312 |
| Feb 8, 2024 | Onto Innovation Inc. | Option exercise | +24,834 | โ | โ |
| Feb 8, 2024 | Onto Innovation Inc. | Shares withheld for tax | โ12,003 | $164.76 | $1,977,614 |
| Aug 21, 2023 | Onto Innovation Inc. | Open-market sale | โ2,653 | $110.16 | $292,254 |
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