Updated Jul 16, 2026
OH Yoon Ah has filed 1 SEC Form 4 filing across 1 company in the last 90 days.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-18 | ONTO | ONTO INNOVATION INC. | F — Tax withholding / forfeiture | 530 | $271.77 | $144K |
| 2026-03-04 | ONTO | ONTO INNOVATION INC. | F — Tax withholding / forfeiture | 417 | $207.50 | $87K |
| 2026-03-04 | ONTO | ONTO INNOVATION INC. | A — Grant or award | 2.4K | $0.00 | |
| 2026-03-03 | ONTO | ONTO INNOVATION INC. | F — Tax withholding / forfeiture | 267 | $215.89 | $58K |
| 2026-03-03 | ONTO | ONTO INNOVATION INC. | F — Tax withholding / forfeiture | 307 | $215.89 | $66K |
| 2026-03-03 | ONTO | ONTO INNOVATION INC. | M — Option exercise | 724 | $0.00 | |
| 2026-02-18 | ONTO | ONTO INNOVATION INC. | F — Tax withholding / forfeiture | 501 | $217.23 | $109K |
| 2026-02-18 | ONTO | ONTO INNOVATION INC. | F — Tax withholding / forfeiture | 1.1K | $217.23 | $238K |
| 2026-02-18 | ONTO | ONTO INNOVATION INC. | M — Option exercise | 3.1K | $0.00 | |
| 2024-10-28 | ONTO | ONTO INNOVATION INC. | F — Tax withholding / forfeiture | 1.3K | $204.39 | $265K |
OH Yoon Ah is a corporate insider — currently tracked as SVP, Gen Counsel & Corp Sec of ONTO INNOVATION INC. (ONTO). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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