Onto Innovation Inc. (ONTO) Insider Trading
Over the last 6 months, 400 institutions increased and 351 reduced their position (13F).
Insider Activity
Sentiment
50/100
Buys (3m)
0
Sells (3m)
0
Net (3m)
$0
Insider trades by month Buys Sells
Mar
Jun
Sep
Nov
Jan
Feb
Context3-month price +40.9%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 22, 2026 | SEAMS CHRISTOPHER Adirector | Grant | 761 | — |
| May 22, 2026 | MILLER DAVID BRIANdirector | Grant | 761 | — |
| May 22, 2026 | Kelley Stephen Douglasdirector | Grant | 761 | — |
| May 22, 2026 | SCHWARTZ STEPHEN Sdirector | Grant | 761 | — |
| May 22, 2026 | Lynch Susan Ddirector | Grant | 761 | — |
| May 22, 2026 | Su Maydirector | Grant | 761 | — |
| May 18, 2026 | YALDAEI RAMILofficer: Chief Operating Officer | Tax | 218 | $271.77 |
| May 18, 2026 | YALDAEI RAMILofficer: Chief Operating Officer | Tax | 625 | $271.77 |
| May 18, 2026 | OH Yoon Ahofficer: SVP, Gen Counsel & Corp Sec | Tax | 530 | $271.77 |
| Mar 4, 2026 | Plisinski Michael Pdirector, officer: Chief Executive Officer | Grant | 14,479 | — |
| Mar 4, 2026 | Dolev Idoofficer: EVP, Prod Solutions Grp | Tax | 819 | $207.50 |
| Mar 4, 2026 | YALDAEI RAMILofficer: Chief Operating Officer | Grant | 1,548 | — |
| Mar 4, 2026 | Chen Shirleyofficer: SVP Customer Success | Grant | 2,523 | — |
| Mar 4, 2026 | Chen Shirleyofficer: SVP Customer Success | Grant | 1,261 | — |
| Mar 4, 2026 | Dolev Idoofficer: EVP, Prod Solutions Grp | Grant | 3,440 | — |
| Mar 4, 2026 | ROBERTS BRIAN Kofficer: Chief Financial Officer | Grant | 1,548 | — |
| Mar 4, 2026 | OH Yoon Ahofficer: SVP, Gen Counsel & Corp Sec | Tax | 417 | $207.50 |
| Mar 4, 2026 | OH Yoon Ahofficer: SVP, Gen Counsel & Corp Sec | Grant | 2,408 | — |
| Mar 4, 2026 | OH Yoon Ahofficer: SVP, Gen Counsel & Corp Sec | Grant | 1,204 | — |
| Mar 4, 2026 | Dolev Idoofficer: EVP, Prod Solutions Grp | Grant | 1,720 | — |
| Mar 4, 2026 | YALDAEI RAMILofficer: Chief Operating Officer | Grant | 7,683 | — |
| Mar 4, 2026 | ROBERTS BRIAN Kofficer: Chief Financial Officer | Grant | 3,096 | — |
| Mar 4, 2026 | Plisinski Michael Pdirector, officer: Chief Executive Officer | Grant | 7,239 | — |
| Mar 4, 2026 | YALDAEI RAMILofficer: Chief Operating Officer | Tax | 615 | $207.50 |
| Mar 4, 2026 | Plisinski Michael Pdirector, officer: Chief Executive Officer | Tax | 3,742 | $207.50 |
| Feb 18, 2026 | OH Yoon Ahofficer: SVP, Gen Counsel & Corp Sec | Option | 1,977 | — |
| Feb 18, 2026 | Plisinski Michael Pdirector, officer: Chief Executive Officer | Tax | 3,632 | $217.23 |
| Feb 18, 2026 | OH Yoon Ahofficer: SVP, Gen Counsel & Corp Sec | Tax | 501 | $217.23 |
| Feb 18, 2026 | OH Yoon Ahofficer: SVP, Gen Counsel & Corp Sec | Option | 3,084 | — |
| Feb 18, 2026 | OH Yoon Ahofficer: SVP, Gen Counsel & Corp Sec | Tax | 1,094 | $217.23 |
Source: ONTO SEC Form 4 filings, latest May 22, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their ONTO positions over the last 6 months (SEC Form 13F).
Increased
400
New positions
211
Reduced
351
Sold out
119
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| VANGUARD GROUP INC | Reduced | 5.6M | Jan 29, 2026 |
| BLACKROCK, INC. | Increased | 5.5M | May 13, 2026 |
| BLACKROCK, INC. | Reduced | 4.9M | Feb 12, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 2.7M | May 8, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 2.2M | May 15, 2026 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Reduced | 1.7M | Feb 9, 2026 |
| STATE STREET CORP | Increased | 1.5M | May 15, 2026 |
| STATE STREET CORP | Reduced | 1.5M | Feb 13, 2026 |
| FRANKLIN RESOURCES INC | Increased | 1.4M | Feb 11, 2026 |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 1.2M | Feb 17, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.2M | May 15, 2026 |
| POINT72 ASSET MANAGEMENT, L.P. | Increased | 1.2M | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.1M | Feb 9, 2026 |
| PARADIGM CAPITAL MANAGEMENT INC/NY | Increased | 1.1M | Feb 12, 2026 |
| PARADIGM CAPITAL MANAGEMENT INC/NY | Reduced | 1.1M | May 14, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.