OH Yoon Ah has filed 36 insider transactions across 1 company since February 2024.
Most recent transaction: a grant/award of 2408 shares of ONTO INNOVATION INC. ($ONTO) on March 02, 2026.
Activity breakdown: 0 open-market purchases and 2 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 2, 2026 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | A | Common Stock | 2408 | $0.00 | 22,057.0000 | 49,178,000 | 12.26% | 0.00% |
| March 2, 2026 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | A | Performance Stock Unit | 1204 | $0.00 | 1,204.0000 | 49,178,000 | 9999.99% | 0.00% |
| March 2, 2026 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | A | Performance Stock Unit | 1204 | $0.00 | 1,204.0000 | 49,178,000 | 9999.99% | 0.00% |
| March 3, 2026 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | F | Common Stock | 417 | $207.50 | 21,640.0000 | 49,178,000 | 1.89% | 0.00% |
| March 1, 2026 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | F | Common Stock | 307 | $215.89 | 19,916.0000 | 49,178,000 | 1.52% | 0.00% |
| March 1, 2026 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | M | Performance Stock Unit | 941 | $0.00 | 0.0000 | 49,178,000 | 100.00% | 0.00% |
| March 1, 2026 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | F | Common Stock | 267 | $215.89 | 19,649.0000 | 49,178,000 | 1.34% | 0.00% |
| March 1, 2026 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | M | Common Stock | 724 | $0.00 | 20,223.0000 | 49,178,000 | 3.71% | 0.00% |
| Feb. 14, 2026 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | F | Common Stock | 1094 | $217.23 | 20,000.0000 | 49,178,000 | 5.19% | 0.00% |
| Feb. 14, 2026 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | M | Performance Stock Unit | 1977 | $0.00 | 0.0000 | 49,178,000 | 100.00% | 0.00% |
| Feb. 14, 2026 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | F | Common Stock | 501 | $217.23 | 19,499.0000 | 49,178,000 | 2.51% | 0.00% |
| Feb. 14, 2026 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | M | Common Stock | 3084 | $0.00 | 21,094.0000 | 49,178,000 | 17.12% | 0.01% |
| May 15, 2025 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | F | Common Stock | 603 | $98.04 | 18,010.0000 | 49,660,000 | 3.24% | 0.00% |
| March 3, 2025 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | A | Common Stock | 2941 | $0.00 | 18,613.0000 | 49,660,000 | 18.77% | 0.01% |
| March 3, 2025 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | A | Performance Stock Unit | 1471 | $0.00 | 1,471.0000 | 49,660,000 | 9999.99% | 0.00% |
| March 3, 2025 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | A | Performance Stock Unit | 1470 | $0.00 | 1,470.0000 | 49,660,000 | 9999.99% | 0.00% |
| March 1, 2025 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | SVP, Gen Counsel & Corp Sec | F | Common Stock | 304 | $145.66 | 15,672.0000 | 49,660,000 | 1.90% | 0.00% |
| Feb. 14, 2025 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | F | Common Stock | 493 | $176.55 | 15,976.0000 | 49,660,000 | 2.99% | 0.00% |
| Feb. 14, 2025 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | M | Common Stock | 3956 | $0.00 | 18,299.0000 | 49,660,000 | 27.58% | 0.01% |
| Feb. 14, 2025 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | F | Common Stock | 1830 | $176.55 | 16,469.0000 | 49,660,000 | 10.00% | 0.00% |
| Feb. 14, 2025 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | M | Performance Stock Unit | 1978 | $0.00 | 0.0000 | 49,660,000 | 100.00% | 0.00% |
| Feb. 10, 2025 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | M | Performance Stock Unit | 1360 | $0.00 | 0.0000 | 49,660,000 | 100.00% | 0.00% |
| Feb. 10, 2025 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | M | Common Stock | 2720 | $0.00 | 14,343.0000 | 49,660,000 | 23.40% | 0.01% |
| Feb. 10, 2025 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | F | Common Stock | 1016 | $183.28 | 11,623.0000 | 49,660,000 | 8.04% | 0.00% |
| Feb. 10, 2025 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | F | Common Stock | 375 | $183.28 | 12,639.0000 | 49,660,000 | 2.88% | 0.00% |
| Oct. 25, 2024 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | General Counsel | F | Common Stock | 1296 | $204.39 | 13,014.0000 | 49,694,000 | 9.06% | 0.00% |
| May 15, 2024 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | F | Common Stock | 603 | $233.63 | 14,310.0000 | 49,318,000 | 4.04% | 0.00% |
| March 18, 2024 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | S | Common Stock | 1685 | $180.00 | 14,913.0000 | 49,318,000 | 10.15% | 0.00% |
| March 15, 2024 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | S | Common Stock | 2685 | $173.96 | 16,598.0000 | 49,318,000 | 13.92% | 0.01% |
| March 1, 2024 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | A | Common Stock | 1883 | $0.00 | 19,283.0000 | 49,318,000 | 10.82% | 0.00% |
| March 1, 2024 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | A | Performance Stock Unit | 941 | $0.00 | 941.0000 | 49,318,000 | 9999.99% | 0.00% |
| March 1, 2024 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | A | Performance Stock Unit | 941 | $0.00 | 941.0000 | 49,318,000 | 9999.99% | 0.00% |
| Feb. 14, 2024 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | F | Common Stock | 493 | $173.08 | 17,400.0000 | 49,318,000 | 2.76% | 0.00% |
| Feb. 10, 2024 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | M | Common Stock | 2722 | $0.00 | 17,893.0000 | 49,318,000 | 17.94% | 0.01% |
| Feb. 10, 2024 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | M | Performance Stock Unit | 1361 | $0.00 | 0.0000 | 49,318,000 | 100.00% | 0.00% |
| Feb. 10, 2024 | ONTO INNOVATION INC. | $ONTO | OH Yoon Ah | VP, General Counsel & Corp Sec | F | Common Stock | 1395 | $180.01 | 15,171.0000 | 49,318,000 | 8.42% | 0.00% |