Michael P. Plisinski

Companies

• Onto InnovationBoard member Oct 29, 2019 to now¹
• Onto InnovationChief executive officer Oct 29, 2019 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Onto Innovation ONTO179,242 shares²$40.5M at $226.01Mar 3, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Mar 3, 2026Shares withheld for tax 3,742 shares at $207.50 of Onto Innovation²
• Mar 2, 2026Granted 14,479 shares of Onto Innovation²
• Mar 1, 2026Shares withheld for tax 1,925 shares at $215.89 of Onto Innovation³
• Mar 1, 2026Shares withheld for tax 2,222 shares at $215.89 of Onto Innovation³
• Mar 1, 2026Exercised options 4,597 shares of Onto Innovation³
• Feb 14, 2026Shares withheld for tax 3,632 shares at $217.23 of Onto Innovation⁴
• Feb 14, 2026Shares withheld for tax 8,919 shares at $217.23 of Onto Innovation⁴
• Feb 14, 2026Exercised options 18,445 shares of Onto Innovation⁴
• Dec 24, 2025Gift 25,000 shares of Onto Innovation⁵
• Mar 3, 2025Granted 23,212 shares of Onto Innovation⁶
• Mar 1, 2025Shares withheld for tax 1,925 shares at $145.66 of Onto Innovation⁷
• Feb 14, 2025Shares withheld for tax 3,812 shares at $176.55 of Onto Innovation⁸
• Feb 14, 2025Shares withheld for tax 11,435 shares at $176.55 of Onto Innovation⁸
• Feb 14, 2025Exercised options 23,650 shares of Onto Innovation⁸
• Feb 10, 2025Shares withheld for tax 9,210 shares at $183.28 of Onto Innovation⁹
• Feb 10, 2025Exercised options 19,048 shares of Onto Innovation⁹
• Feb 10, 2025Shares withheld for tax 2,859 shares at $183.28 of Onto Innovation⁹
• Jan 21, 2025Sold 35,000 shares at $219.19 of Onto Innovation¹⁰
• Jan 16, 2025Sold 100 shares at $212.11 of Onto Innovation¹¹
• Jan 16, 2025Sold 29,900 shares at $211.24 of Onto Innovation¹¹
• Jan 14, 2025Sold 1,732 shares at $201.26 of Onto Innovation¹²
• Jan 14, 2025Sold 18,268 shares at $200.09 of Onto Innovation¹²
• Mar 20, 2024Sold 2,914 shares at $178.16 of Onto Innovation¹³
• Mar 20, 2024Sold 1,816 shares at $177.04 of Onto Innovation¹³
• Mar 20, 2024Sold 22,596 shares at $176.00 of Onto Innovation¹³