Plisinski Michael P (CIK 1325550) reported 11 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-04). Recent activity: Buy ONTO (14,479 shares), Sell ONTO (3,742 shares), Buy ONTO (4,597 shares), Sell ONTO (2,222 shares), Sell ONTO (1,925 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-04 | ONTO INNOVATION INC. (ONTO) | Chief Executive Officer | Buy | 14,479 | $0 |
| 2026-03-04 | ONTO INNOVATION INC. (ONTO) | Chief Executive Officer | Sell | 3,742 | $776,465 |
| 2026-03-03 | ONTO INNOVATION INC. (ONTO) | Chief Executive Officer | Buy | 4,597 | $0 |
| 2026-03-03 | ONTO INNOVATION INC. (ONTO) | Chief Executive Officer | Sell | 2,222 | $479,708 |
| 2026-03-03 | ONTO INNOVATION INC. (ONTO) | Chief Executive Officer | Sell | 1,925 | $415,588 |
| 2026-02-18 | ONTO INNOVATION INC. (ONTO) | Chief Executive Officer | Buy | 18,445 | $0 |
| 2026-02-18 | ONTO INNOVATION INC. (ONTO) | Chief Executive Officer | Sell | 8,919 | $1.9M |
| 2026-02-18 | ONTO INNOVATION INC. (ONTO) | Chief Executive Officer | Sell | 3,632 | $788,979 |
| 2025-12-29 | ONTO INNOVATION INC. (ONTO) | Chief Executive Officer | Sell | 25,000 | $0 |
| 2025-03-05 | ONTO INNOVATION INC. (ONTO) | CEO | Buy | 23,212 | $0 |
| 2025-03-03 | ONTO INNOVATION INC. (ONTO) | CEO | Sell | 1,925 | $280,396 |
Source: SEC Form 4 filings · as of 2026-03-04