Onto Innovation Inc. (ONTO) is a publicly traded company in the Unknown sector. Across all available filings, 43 corporate insiders have executed 435 transactions totaling $70.2M, demonstrating a bearish sentiment with -$70.1M in net insider flow. The most recent transaction on Dec 24, 2025 involved a transaction of 25,000 shares valued at $0.
No significant insider buying has been recorded for ONTO in the recent period.
No significant insider selling has been recorded for ONTO in the recent period.
Based on recent SEC filings, insider sentiment for ONTO is bearish with an Insider Alignment Score of 0/100 and a net flow of -$70.1M. Insiders are reducing their positions, though this can be driven by factors unrelated to company outlook.
Insider trading at Onto Innovation Inc. (ONTO) refers to stock transactions made by corporate insiders—executives, directors, and beneficial owners holding more than 10% of the company's shares. These individuals have access to material non-public information and are required by law to report their trades to the SEC within two business days. Currently, 43 insiders are actively trading ONTO stock, having executed 435 transactions in the past 90 days. The most active insider is Bruce C. Rhine (Executive), who has made 41 transactions totaling $41.2M.
Get notified when executives and directors at ONTO file new Form 4 transactions
Date | Insider | Title | Type | Shares | Price | Value | Flags |
|---|---|---|---|---|---|---|---|
| Dec 24, 2025 | P. Plisinski Michael | Executive | Gift | 25,000 | $N/A | $0 | |
| Dec 2, 2025 | Dolev Ido | Executive | Payment | 3,183 | $154.01 | $490.2K | |
| Oct 3, 2025 | Yaldaei Ramil | Executive | Payment | 594 | $143.71 | $85.4K | |
| Sep 2, 2025 | Chen Shirley | Executive | Award | 12,994 | $N/A | $0 | |
| Sep 2, 2025 | K. Roberts Brian | Executive | Award | 21,175 | $N/A | $0 | |
| Sep 3, 2024 | Vedula Srinivas | Executive | Sale | 1,275 | $207.24 | $264.2K | 10b5-1 |
| Sep 1, 2024 | Mayson Brooks D. | Executive | Payment | 224 | $213.22 | $47.8K | |
| Aug 30, 2024 | Vedula Srinivas | Executive | Payment | 280 | $213.22 | $59.7K | 10b5-1 |
| Aug 20, 2024 | S. Schwartz Stephen | Executive | Award | 661 | $N/A | $0 | |
| Jun 10, 2024 | Vedula Srinivas | Executive | Sale | 1,486 | $213.40 | $317.1K | 10b5-1 |
| Jun 7, 2024 | Slicer Mark | Executive | Sale | 519 | $217.17 | $112.7K | 10b5-1 |
| Jun 6, 2024 | Slicer Mark | Executive | Sale | 519 | $221.21 | $114.8K | 10b5-1 |
| May 22, 2024 | Berlinghieri Leo | Executive | Award | 809 | $N/A | $0 | |
| May 22, 2024 | Douglas Kelley Stephen | Executive | Award | 809 | $N/A | $0 | |
| May 22, 2024 | D. Lynch Susan | Executive | Award | 809 | $N/A | $0 |
| TYPE | COUNT | VALUE | % |
|---|---|---|---|
Sale(S) | 128 | $70.1M | 75.0% |
Payment(F) | 119 | $21.7M | 23.2% |
Disposition(D) | 37 | $1.6M | 1.7% |
Purchase(P) | 1 | $30.0K | 0.0% |
Other(J) | 2 | $14.0K | 0.0% |
Gift(G) | 13 | $0 | 0.0% |
Award(A) | 118 | $0 | 0.0% |
Exercise(M) | 17 | $0 | 0.0% |
Insider selling pressure at Onto Innovation Inc. has increased, with 43 insiders executing 435 transactions across all time. Total sales of $70.1M significantly outpace purchases of $30.0K, resulting in a net outflow of $70.1M. This selling activity appears largely discretionary, which may warrant closer attention from investors.