ONTO INNOVATION INC (ONTO) Stock Ownership

NYSE:ONTO • US6833441057

225.22 USD
+1.04 (+0.46%)
At close: Feb 25, 2026
224 USD
-1.22 (-0.54%)
After Hours: 2/25/2026, 8:04:00 PM
Overview Stock Chart Technical Analysis Fundamental Analysis Analyst Ratings Earnings Estimates Financials Ownership News
ONTO Ownership Chart.ONTO Ownership Chart: showing Insider, Institutional ownership and shares available to the public.ONTO Ownership.InsiderInstitutionalPublic



Shares Outstanding49.65M
Float49.30M
Float Short Interest Percentage2.16%
Owners (insider)0.62%
Owners (institutional)98.42%
Owners (insider) change1.26%
Owners (institutional) change-1.57%
ONTO Institutional Ownership HistoryONTO Institutional Ownership HistoryONTO Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 10M 20M 30M 40M
ONTO Historical Insider Transactions ChartONTO Historical Insider Buy and Sell Transactions ChartONTO Historical Insider Transactions Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 0 20K -20K
Date Name Type Shares Price Amount
Feb 14, 2026 Plisinski Michael P Option Excercise 18445 0.00 $ 0.00
Feb 14, 2026 Plisinski Michael P Option Excercise 12551 217.23 $ 2,726,453.73
Feb 14, 2026 OH Yoon Ah Option Excercise 3084 0.00 $ 0.00
Feb 14, 2026 OH Yoon Ah Option Excercise 1595 217.23 $ 346,481.85
Dec 24, 2025 Plisinski Michael P Other Disposition 25000 0.00 $ 0.00
Dec 2, 2025 Dolev Ido Option Excercise 3183 154.01 $ 490,213.83
Oct 3, 2025 YALDAEI RAMIL Option Excercise 594 143.71 $ 85,363.74
Sep 2, 2025 Chen Shirley Grant 12994 0.00 $ 0.00
Sep 2, 2025 ROBERTS BRIAN K Grant 21175 0.00 $ 0.00
Jun 2, 2025 Dolev Ido Grant 26953 0.00 $ 0.00
May 21, 2025 Su May Grant 2114 0.00 $ 0.00
May 21, 2025 SEAMS CHRISTOPHER A Grant 2114 0.00 $ 0.00
May 21, 2025 SCHWARTZ STEPHEN S Grant 2114 0.00 $ 0.00
May 21, 2025 MILLER DAVID BRIAN Grant 2114 0.00 $ 0.00
May 21, 2025 Lynch Susan D Grant 2114 0.00 $ 0.00
May 21, 2025 Kelley Stephen Douglas Grant 2114 0.00 $ 0.00
May 17, 2025 Slicer Mark Option Excercise 2066 99.40 $ 205,360.40
May 15, 2025 YALDAEI RAMIL Option Excercise 826 98.04 $ 80,981.04
May 15, 2025 OH Yoon Ah Option Excercise 603 98.04 $ 59,118.12
Mar 3, 2025 YALDAEI RAMIL Grant 3769 0.00 $ 0.00
Mar 3, 2025 Vedula Srini Grant 2574 0.00 $ 0.00
Mar 3, 2025 Slicer Mark Grant 2941 0.00 $ 0.00
Mar 3, 2025 Plisinski Michael P Grant 23212 0.00 $ 0.00
Mar 3, 2025 OH Yoon Ah Grant 2941 0.00 $ 0.00
Mar 1, 2025 YALDAEI RAMIL Option Excercise 305 145.66 $ 44,426.30
Mar 1, 2025 Vedula Srini Option Excercise 199 145.66 $ 28,986.34
Mar 1, 2025 Slicer Mark Option Excercise 336 145.66 $ 48,941.76
Mar 1, 2025 Plisinski Michael P Option Excercise 1925 145.66 $ 280,395.50
Mar 1, 2025 OH Yoon Ah Option Excercise 304 145.66 $ 44,280.64