ONTO INNOVATION INC. (ONTO)

Latest Insider Confidence Score

2026Q1

49.1
Bearish

Company insider confidence (by quarter)

2013Q2 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Stultz Timothy J Director 209,143 Feb 13, 2020
Lesaicherre Pierre-Yves CEO 108,564 Nov 12, 2019
Andreson Jeff CFO 71,919 Sep 26, 2017
Bentley J Thomas Director 71,612 May 24, 2018
Brown Edward J Jr — 44,739 May 12, 2021

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 2, 2026 Mar 4, 2026 ROBERTS BRIAN K CFO Neutral 90.0 +3,096 14.62% ✗ -
Mar 2, 2026 Mar 4, 2026 Dolev Ido EVP, Prod Solutions Grp Sell 95.0 +2,621 10.96% ✗ $169.9K
Mar 2, 2026 Mar 4, 2026 YALDAEI RAMIL COO Sell 95.0 +7,068 62.17% ✗ $127.6K
Mar 2, 2026 Mar 4, 2026 Plisinski Michael P CEO Sell 92.5 +10,737 6.37% ✗ $776.5K
Mar 2, 2026 Mar 4, 2026 OH Yoon Ah SVP, Gen Counsel & Corp Sec Sell 95.0 +1,991 10.13% ✗ $86.5K
Mar 2, 2026 Mar 4, 2026 Chen Shirley SVP Customer Success Neutral 90.0 +2,523 19.42% ✗ -
Mar 1, 2026 Mar 3, 2026 YALDAEI RAMIL COO Sell 42.5 -623 -5.20% ✗ $134.5K
Mar 1, 2026 Mar 3, 2026 Plisinski Michael P CEO Sell 40.0 -4,147 -2.40% ✗ $895.3K
Mar 1, 2026 Mar 3, 2026 OH Yoon Ah SVP, Gen Counsel & Corp Sec Sell 42.5 -574 -2.84% ✗ $123.9K
Feb 14, 2026 Feb 18, 2026 Plisinski Michael P CEO Sell 37.5 -12,551 -6.95% ✗ $2.7M
Feb 14, 2026 Feb 18, 2026 OH Yoon Ah SVP, Gen Counsel & Corp Sec Sell 40.0 -1,595 -7.56% ✗ $346.5K
Dec 24, 2025 Dec 29, 2025 Plisinski Michael P CEO Neutral 27.5 -25,000 -13.36% ✗ -
Dec 2, 2025 Dec 4, 2025 Dolev Ido EVP, Prod Solutions Grp Sell 40.0 -3,183 -11.75% ✗ $490.2K
Oct 3, 2025 Oct 6, 2025 YALDAEI RAMIL COO Sell 42.5 -594 -4.98% ✗ $85.4K
Sep 2, 2025 Sep 3, 2025 ROBERTS BRIAN K CFO Neutral 90.0 +21,175 100.00% ✗ -
Sep 2, 2025 Sep 3, 2025 Chen Shirley SVP, Customer Success Neutral 90.0 +12,994 100.00% ✗ -
Jun 30, 2025 Chen Shirley SVP Customer Success Neutral 52.5 - 0.00% ✗ -
Jun 16, 2025 ROBERTS BRIAN K CFO Neutral 52.5 - 0.00% ✗ -
Jun 13, 2025 Slicer Mark CFO Neutral 52.5 - 0.00% ✗ -
Jun 2, 2025 Jun 4, 2025 Dolev Ido EVP, Prod Solutions Grp Neutral 90.0 +26,953 100.00% ✗ -
May 23, 2025 TSINGOS CHRISTINE A Director Neutral 52.5 - 0.00% ✗ -
May 23, 2025 BERLINGHIERI LEO Director Neutral 52.5 - 0.00% ✗ -
May 21, 2025 May 23, 2025 Su May Director Neutral 90.0 +2,114 41.38% ✗ -
May 21, 2025 May 23, 2025 SEAMS CHRISTOPHER A Director Neutral 85.0 +2,114 5.93% ✗ -
May 21, 2025 May 23, 2025 SCHWARTZ STEPHEN S Director Neutral 90.0 +2,114 319.82% ✗ -
May 21, 2025 May 23, 2025 MILLER DAVID BRIAN Director Neutral 90.0 +2,114 21.53% ✗ -
May 21, 2025 May 23, 2025 Lynch Susan D Director Neutral 90.0 +2,114 261.31% ✗ -
May 21, 2025 May 23, 2025 Kelley Stephen Douglas Director Neutral 90.0 +2,114 60.25% ✗ -
May 17, 2025 May 19, 2025 Slicer Mark CFO Sell 42.5 -2,066 -13.15% ✗ $205.4K
May 15, 2025 May 19, 2025 YALDAEI RAMIL COO Sell 42.5 -826 -6.55% ✗ $81K
May 15, 2025 May 19, 2025 OH Yoon Ah SVP, Gen Counsel & Corp Sec Sell 42.5 -603 -3.24% ✗ $59.1K
Apr 9, 2025 Vedula Srinivas SVP Customer Success Neutral 52.5 - 0.00% ✗ -
Mar 3, 2025 Mar 5, 2025 YALDAEI RAMIL COO Neutral 90.0 +3,769 42.60% ✗ -
Mar 3, 2025 Mar 5, 2025 Vedula Srinivas SVP, Customer Success Neutral 90.0 +2,574 15.93% ✗ -
Mar 3, 2025 Mar 5, 2025 Slicer Mark CFO Neutral 90.0 +2,941 23.04% ✗ -
Mar 3, 2025 Mar 5, 2025 Plisinski Michael P CEO Neutral 90.0 +23,212 14.16% ✗ -
Mar 3, 2025 Mar 5, 2025 OH Yoon Ah SVP, Gen Counsel & Corp Sec Neutral 90.0 +2,941 18.77% ✗ -
Mar 1, 2025 Mar 3, 2025 YALDAEI RAMIL COO Sell 46.3 -305 -3.33% ✗ $44.4K
Mar 1, 2025 Mar 3, 2025 Vedula Srinivas SVP, Customer Success Sell 46.3 -199 -1.22% ✗ $29K
Mar 1, 2025 Mar 3, 2025 Slicer Mark CFO Sell 46.3 -336 -2.56% ✗ $48.9K
Mar 1, 2025 Mar 3, 2025 Plisinski Michael P CEO Sell 40.0 -1,925 -1.16% ✗ $280.4K
Mar 1, 2025 Mar 3, 2025 OH Yoon Ah SVP, Gen Counsel & Corp Sec Sell 46.3 -304 -1.90% ✗ $44.3K
Feb 14, 2025 Feb 19, 2025 OH Yoon Ah VP, General Counsel & Corp Sec Sell 40.0 -2,323 -12.69% ✗ $410.1K
Feb 14, 2025 Feb 19, 2025 Plisinski Michael P CEO Sell 37.5 -15,247 -8.42% ✗ $2.7M
Feb 14, 2025 Feb 19, 2025 Slicer Mark CFO Sell 40.0 -2,396 -15.46% ✗ $423K
Feb 14, 2025 Feb 19, 2025 Vedula Srinivas SVP, Customer Success Sell 40.0 -1,855 -10.19% ✗ $327.5K
Feb 13, 2025 Feb 18, 2025 Vedula Srinivas SVP, Customer Success Sell 48.8 -238 -1.51% ✓ $40.4K
Feb 10, 2025 Feb 12, 2025 Vedula Srinivas SVP, Customer Success Sell 42.5 -1,145 -7.52% ✗ $209.9K
Feb 10, 2025 Feb 12, 2025 OH Yoon Ah VP, General Counsel & Corp Sec Sell 40.0 -1,391 -10.69% ✗ $254.9K
Feb 10, 2025 Feb 12, 2025 Plisinski Michael P CEO Sell 37.5 -12,069 -3.81% ✗ $2.2M
Jan 21, 2025 Jan 22, 2025 Plisinski Michael P CEO Sell 13.8 -35,000 -18.87% ✓ $7.7M
Jan 16, 2025 Jan 21, 2025 Plisinski Michael P CEO Sell 18.8 -30,000 -13.92% ✓ $6.3M
Jan 15, 2025 Jan 16, 2025 Vedula Srinivas SVP, Customer Success Sell 32.5 -827 -5.15% ✓ $169.5K
Jan 14, 2025 Jan 16, 2025 Plisinski Michael P CEO Sell 23.8 -20,000 -8.49% ✓ $4M
Dec 4, 2024 Fiordalice Robert President Neutral 52.5 - 0.00% ✗ -
Dec 4, 2024 BROOKS D MAYSON President Neutral 52.5 - 0.00% ✗ -
Dec 3, 2024 Dolev Ido EVP, Prod Solutions Grp Neutral 52.5 - 0.00% ✗ -
Nov 15, 2024 Nov 18, 2024 Slicer Mark CFO Sell 28.8 -1,100 -9.14% ✓ $176.5K
Oct 25, 2024 Oct 28, 2024 OH Yoon Ah General Counsel Sell 40.0 -1,296 -9.06% ✗ $264.9K
Oct 3, 2024 Oct 4, 2024 YALDAEI RAMIL COO Sell 42.5 -592 -6.08% ✗ $122.3K
Sep 1, 2024 Sep 4, 2024 BROOKS D MAYSON President Sell 46.3 -224 -6.89% ✗ $47.8K
Aug 30, 2024 Sep 4, 2024 Vedula Srinivas SVP, Customer Success Sell 26.3 -1,555 -8.83% ✓ $323.9K
Aug 20, 2024 Aug 22, 2024 SCHWARTZ STEPHEN S Director Neutral 90.0 +661 100.00% ✗ -
Jul 16, 2024 SCHWARTZ STEPHEN S Director Neutral 52.5 - 0.00% ✗ -
Jun 10, 2024 Jun 11, 2024 Vedula Srinivas SVP, Customer Success Sell 26.3 -1,486 -7.85% ✓ $317.1K
Jun 6, 2024 Jun 10, 2024 Slicer Mark CFO Sell 28.8 -1,038 -7.94% ✓ $227.5K
May 23, 2024 ROGGE KAREN M Director Neutral 52.5 - 0.00% ✗ -
May 22, 2024 May 23, 2024 TSINGOS CHRISTINE A Director Neutral 77.5 +809 1.92% ✗ -
May 22, 2024 May 23, 2024 Su May Director Neutral 90.0 +809 18.81% ✗ -
May 22, 2024 May 23, 2024 SEAMS CHRISTOPHER A Director Neutral 77.5 +809 2.32% ✗ -
May 22, 2024 May 23, 2024 MILLER DAVID BRIAN Director Neutral 85.0 +809 8.98% ✗ -
May 22, 2024 May 23, 2024 Lynch Susan D Director Neutral 90.0 +809 100.00% ✗ -
May 22, 2024 May 23, 2024 Kelley Stephen Douglas Director Neutral 90.0 +809 29.96% ✗ -
May 22, 2024 May 23, 2024 BERLINGHIERI LEO Director Neutral 82.5 +809 4.17% ✗ -
May 17, 2024 May 21, 2024 Slicer Mark CFO Sell 40.0 -1,633 -11.11% ✗ $365K
May 15, 2024 May 17, 2024 YALDAEI RAMIL COO Sell 42.5 -739 -7.16% ✗ $172.7K
May 15, 2024 May 17, 2024 OH Yoon Ah VP, General Counsel & Corp Sec Sell 42.5 -603 -4.04% ✗ $140.9K
Apr 1, 2024 Apr 3, 2024 Vedula Srinivas SVP, Customer Success Sell 42.5 -302 -1.57% ✗ $56K
Mar 20, 2024 Mar 22, 2024 Plisinski Michael P CEO Sell 18.8 -40,000 -14.52% ✓ $7M
Mar 18, 2024 Lynch Susan D Director Neutral 52.5 - 0.00% ✗ -
Mar 15, 2024 Mar 18, 2024 OH Yoon Ah VP, General Counsel & Corp Sec Sell 12.5 -4,370 -22.66% ✓ $770.4K
Mar 1, 2024 Mar 5, 2024 YALDAEI RAMIL COO Neutral 90.0 +1,688 19.57% ✗ -
Mar 1, 2024 Mar 5, 2024 Vedula Srinivas SVP, Customer Success Neutral 85.0 +1,169 6.48% ✗ -
Mar 1, 2024 Mar 5, 2024 Slicer Mark CFO Neutral 90.0 +2,077 16.45% ✗ -
Mar 1, 2024 Mar 5, 2024 Plisinski Michael P CEO Neutral 82.5 +11,943 4.53% ✗ -
Mar 1, 2024 Mar 5, 2024 Fiordalice Robert SVP & GM, Metrology BU Neutral 85.0 +779 9.76% ✗ -
Mar 1, 2024 Mar 5, 2024 OH Yoon Ah VP, General Counsel & Corp Sec Neutral 90.0 +1,883 10.82% ✗ -
Mar 1, 2024 Mar 5, 2024 BROOKS D MAYSON President Neutral 90.0 +883 40.25% ✗ -
Feb 14, 2024 Feb 16, 2024 Vedula Srinivas SVP, Customer Success Sell 42.5 -463 -2.50% ✗ $80.1K
Feb 14, 2024 Feb 16, 2024 Slicer Mark CFO Sell 42.5 -484 -3.69% ✗ $83.8K
Feb 14, 2024 Feb 16, 2024 Plisinski Michael P CEO Sell 40.0 -3,812 -1.43% ✗ $659.8K
Feb 14, 2024 Feb 16, 2024 OH Yoon Ah VP, General Counsel & Corp Sec Sell 42.5 -493 -2.76% ✗ $85.3K
Feb 14, 2024 Feb 16, 2024 Fiordalice Robert President Sell 46.3 -238 -2.89% ✗ $41.2K
Feb 13, 2024 Feb 13, 2024 MILLER DAVID BRIAN Director Sell 20.0 -2,800 -23.71% ✗ $477.4K
Feb 10, 2024 Feb 12, 2024 Vedula Srinivas SVP, Customer Success Sell 42.5 -1,142 -6.34% ✗ $205.6K
Feb 8, 2024 Feb 12, 2024 Plisinski Michael P CEO Sell 37.5 -28,317 -2.67% ✗ $4.9M
Feb 10, 2024 Feb 12, 2024 OH Yoon Ah VP, General Counsel & Corp Sec Sell 40.0 -1,395 -8.42% ✗ $251.1K
Feb 8, 2024 Feb 12, 2024 Fiordalice Robert President Sell 42.5 -1,403 -9.08% ✗ $242.7K
Oct 25, 2023 Oct 26, 2023 OH Yoon Ah VP, General Counsel Sell 42.5 -795 -4.58% ✗ $88.4K
Oct 3, 2023 Oct 4, 2023 YALDAEI RAMIL COO Sell 42.5 -421 -4.69% ✗ $52.8K