Onto Innovation Inc.
Last updated September 27, 2026
Organization details
- Legal name
- Onto Innovation Inc.
- Former names
- Nanometrics Inc
- Ownership
- Public
- Status
- Active
- SIC code
- 3829 — Measuring & Controlling Devices, NEC
- Jurisdiction of incorporation
- Delaware
- Headquarters city
- Wilmington
- Headquarters state / province
- Massachusetts
- Headquarters country
- United States
- Fiscal year end
- December
- Ticker symbol
- ONTO
- Primary stock exchange
- NYSE
Identifiers
- SEC CIK
- 0000704532
- EIN
- 94-2276314
Board of directors
-
Christine A. Tsingos · DirectorSince 2023
-
Christopher A. Seams · DirectorSince 2023
-
David Brian Miller · DirectorSince 2023
-
Karen M. Rogge · DirectorSince 2023
-
Leo Berlinghieri · DirectorSince 2023
-
May Su · DirectorSince 2023
-
Michael P. Plisinski · Director · Chief Executive OfficerSince 2023
-
Stephen Douglas Kelley · DirectorSince 2023
-
Stephen S. Schwartz · DirectorSince 2024
- Since 2024
Chief executives
Michael P. Plisinski
· CEO
Dates unknown
Director election results
Annual meeting of May 20, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
92.4%
-
96.5%
-
97.9%
-
98.9%
-
98.9%
-
99.3%
-
99.4%
Board connections
6 of this board's directors also sit on 13 other boards.
- via Stephen Douglas Kelley
- via Susan D. Lynch
- via Susan D. Lynch
- via Stephen S. Schwartz
- via Susan D. Lynch
- via Susan D. Lynch
- via Christine A. Tsingos
- via Karen M. Rogge
- via Karen M. Rogge
- via Karen M. Rogge
- via Stephen S. Schwartz
- via Christine A. Tsingos
- via Christopher A. Seams
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.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $302,300
- 1 sale by 1 insider
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 2, 2026 | Chen Shirley Officer (Senior Vice President of Custo) | Shares withheld for tax | −1,516 | $254.55 | $385,898 |
| Sep 2, 2026 | ROBERTS BRIAN K Officer (Chief Financial Officer) | Shares withheld for tax | −3,239 | $254.55 | $824,487 |
| Aug 21, 2026 | Susan D. Lynch Director | Open-market sale | −1,000 | $302.30 | $302,300 |
| May 20, 2026 | May Su Director | Grant or award | +761 | — | — |
| May 20, 2026 | Christopher A. Seams Director | Grant or award | +761 | — | — |
| May 20, 2026 | Stephen S. Schwartz Director | Grant or award | +761 | — | — |
| May 20, 2026 | David Brian Miller Director | Grant or award | +761 | — | — |
| May 20, 2026 | Susan D. Lynch Director | Grant or award | +761 | — | — |
| May 20, 2026 | Stephen Douglas Kelley Director | Grant or award | +761 | — | — |
| May 15, 2026 | YALDAEI RAMIL Officer (Chief Operating Officer) | Shares withheld for tax | −218 | $271.77 | $59,246 |
| May 15, 2026 | OH Yoon Ah Officer (SVP, Gen Counsel & Corp Sec) | Shares withheld for tax | −530 | $271.77 | $144,038 |
| May 15, 2026 | YALDAEI RAMIL Officer (Chief Operating Officer) | Shares withheld for tax | −625 | $271.77 | $169,856 |
| Mar 3, 2026 | Dolev Ido Officer (EVP, Prod Solutions Grp) | Shares withheld for tax | −819 | $207.50 | $169,943 |
| Mar 3, 2026 | YALDAEI RAMIL Officer (Chief Operating Officer) | Shares withheld for tax | −615 | $207.50 | $127,613 |
| Mar 3, 2026 | Michael P. Plisinski Director, Officer (Chief Executive Officer) | Shares withheld for tax | −3,742 | $207.50 | $776,465 |
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