ONTO Insider Trading
Form 4 insider transactions for ONTO over the last 6 months. Buys, sells and grants by directors and officers.
| Insider | Date | Type | Shares | Price |
|---|---|---|---|---|
| ROBERTS BRIAN KChief Financial Officer | Sep 2, 2026 | Tax withholding | 6,478 | $254.55 |
| Chen ShirleySenior Vice President of Custo | Sep 2, 2026 | Tax withholding | 1,516 | $254.55 |
| Lynch Susan D | Aug 21, 2026 | Sell | 1,000 | $302.30 |
| Kelley Stephen Douglas | May 20, 2026 | Grant / award | 761 | — |
| Lynch Susan D | May 20, 2026 | Grant / award | 761 | — |
| MILLER DAVID BRIAN | May 20, 2026 | Grant / award | 761 | — |
| SCHWARTZ STEPHEN S | May 20, 2026 | Grant / award | 761 | — |
| SEAMS CHRISTOPHER A | May 20, 2026 | Grant / award | 761 | — |
| Su May | May 20, 2026 | Grant / award | 761 | — |
| OH Yoon AhSVP, Gen Counsel & Corp Sec | May 15, 2026 | Tax withholding | 530 | $271.77 |
| YALDAEI RAMILChief Operating Officer | May 15, 2026 | Tax withholding | 843 | $271.77 |
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Source: SEC EDGAR Form 4 filings.