OH Yoon Ah
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to OH Yoon Ah. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| ONTO | SVP, Gen Counsel & Corp Sec | Tax Withholding | 603 | $98.04 | $59,118 | May 15, 2025 |
| ONTO | SVP, Gen Counsel & Corp Sec | Award / Grant | 2,941 | — | — | Mar 3, 2025 |
| ONTO | SVP, Gen Counsel & Corp Sec | Tax Withholding | 304 | $145.66 | $44,281 | Mar 1, 2025 |
| ONTO | VP, General Counsel & Corp Sec | Tax Withholding | 1,830 | $176.55 | $323,087 | Feb 14, 2025 |
| ONTO | VP, General Counsel & Corp Sec | Tax Withholding | 375 | $183.28 | $68,730 | Feb 10, 2025 |
| ONTO | General Counsel | Tax Withholding | 1,296 | $204.39 | $264,889 | Oct 25, 2024 |
| ONTO | VP, General Counsel & Corp Sec | Tax Withholding | 603 | $233.63 | $140,879 | May 15, 2024 |
| ONTO | VP, General Counsel & Corp Sec | Sale | 1,685 | $180.00 | $303,300 | Mar 15, 2024 |
| ONTO | VP, General Counsel & Corp Sec | Award / Grant | 1,883 | — | — | Mar 1, 2024 |
| ONTO | VP, General Counsel & Corp Sec | Tax Withholding | 493 | $173.08 | $85,328 | Feb 14, 2024 |
| ONTO | VP, General Counsel & Corp Sec | Tax Withholding | 1,395 | $180.01 | $251,114 | Feb 10, 2024 |
| ONTO | VP, General Counsel | Tax Withholding | 795 | $111.16 | $88,372 | Oct 25, 2023 |
| ONTO | VP, General Counsel | Award / Grant | 3,746 | — | — | May 15, 2023 |
| ONTO | General Counsel | Award / Grant | 3,955 | — | — | Feb 14, 2023 |
| ONTO | General Counsel | Tax Withholding | 318 | $80.90 | $25,726 | Feb 10, 2023 |
| ONTO | VP, General Counsel | Tax Withholding | 787 | $67.30 | $52,965 | Oct 25, 2022 |
| ONTO | General Counsel | Award / Grant | 2,722 | — | — | Feb 10, 2022 |
| ONTO | Award / Grant | 8,043 | — | — | Oct 25, 2021 |