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| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | Mar 01 '26 | Option Exercise | 0.00 | 1,665 | 0 | 20,223 | Mar 03 |
| ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | Feb 14 '26 | Option Exercise | 0.00 | 5,061 | 0 | 21,094 | Feb 18 |
| ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | Feb 14 '25 | Option Exercise | 0.00 | 5,934 | 0 | 18,299 | Feb 19 |
| ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | Feb 10 '25 | Option Exercise | 0.00 | 4,080 | 0 | 14,343 | Feb 12 |
| ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | Mar 18 '24 | Sale | 180.00 | 1,685 | 303,300 | 14,913 | Mar 18 |
| ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | Mar 15 '24 | Sale | 173.96 | 2,685 | 467,083 | 16,598 | Mar 18 |
| ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | Feb 10 '24 | Option Exercise | 0.00 | 4,083 | 0 | 17,893 | Feb 12 |