Form4.ai tracks every SEC insider trade in real time. See every ONTO insider filing with a free account — no card.
See every ONTO insider filing — free account, no card.
Free accountONTO INNOVATION INC. (ONTO) has 4 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 2 sales totalling $902K. Most recent filing: Oct. 1, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Oct 1, 2026 SEC filing | MILLER DAVID BRIAN Director | Sold | $600,000 | — |
| Sep 4, 2026 SEC filing | Chen Shirley Senior Vice President of Custo | Tax withholding | $385,898 | — |
| Sep 4, 2026 SEC filing Amended: Corrected by the insider on Sep 4, 2026 | ROBERTS BRIAN K Chief Financial Officer | Tax withholding | $824,487 | — |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.