Onto Innovation (ONTO) Insider Trading & Ownership $94.88 -1.17 (-1.22%) As of 10:16 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Insider Trades Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Onto Innovation (NYSE:ONTO) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage0.63%Number OfInsiders Buying(Last 12 Months)0Number OfInsiders Selling(Last 12 Months)3Amount OfInsider Selling(Last 12 Months)$18.88 M Get ONTO Insider Trade Alerts Want to know when executives and insiders are buying or selling Onto Innovation stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address ONTO Insider Buying and Selling by Quarter Onto Innovation Insider and Congressional Trades History Insiders and Members of Congress Insiders Only Members of Congress Only Transaction Type Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame * Start Date * End Date Export to Excel Transaction DateNameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails1/21/2025Michael P PlisinskiCEOSell35,000$219.19$7,671,650.00 1/16/2025Michael P PlisinskiCEOSell30,000$211.24$6,337,200.00 1/15/2025Srinivas VedulaSVPSell827$205.00$169,535.00 1/14/2025Michael P PlisinskiCEOSell20,000$200.19$4,003,800.00 9/3/2024Srinivas VedulaSVPSell1,275$207.24$264,231.00 6/10/2024Srinivas VedulaSVPSell1,486$213.40$317,112.40 6/6/2024Mark SlicerCFOSell519$221.21$114,807.99 (Data available from 1/1/2013 forward) ONTO Insider Trading Activity - Frequently Asked Questions Who is on Onto Innovation's Insider Roster? The list of insiders at Onto Innovation includes David Brian Miller, Ju Jin, Mark Slicer, Michael P Plisinski, Robert Fiordalice, Srinivas Vedula, and Yoon Ah Oh. Learn more on insiders at ONTO. What percentage of Onto Innovation stock is owned by insiders? 0.63% of Onto Innovation stock is owned by insiders. Learn more on ONTO's insider holdings. Which Onto Innovation insiders have been selling company stock? The following insiders have sold ONTO shares in the last 24 months: David Brian Miller ($477,372.00), Ju Jin ($472,515.31), Mark Slicer ($490,853.69), Michael P Plisinski ($28,530,200.00), Robert Fiordalice ($882,464.31), Srinivas Vedula ($952,131.40), and Yoon Ah Oh ($770,382.60). How much insider selling is happening at Onto Innovation? Insiders have sold a total of 183,263 Onto Innovation shares in the last 24 months for a total of $32,575,919.31 sold. Onto Innovation Key ExecutivesMr. Michael P. Plisinski (Age 54)CEO & Director Compensation: $1.32M3 recent tradesMr. Mark R. Slicer (Age 52)Senior VP & CFO Compensation: $709.82kMr. Ramil Yaldaei (Age 59)Chief Operating Officer Compensation: $480.96kMs. Yoon Ah E. Oh (Age 42)VP, General Counsel & Company Secretary Compensation: $572.56kDr. Srinivas Vedula Ph.D. (Age 51)Senior Vice President of Customer Success Group Compensation: $483.89kMr. Michael SheafferSenior Director of Investor Relations & ESG ReportingDr. Michel RosaChief Marketing Officer & Senior VP of StrategyMr. Robert Fiordalice (Age 62)Senior VP & GM of Metrology Business Unit Compensation: $518.66k More Insider Trading Tools from MarketBeat Related Companies ENTG Insider Trades MKSI Insider Trades AMKR Insider Trades AEIS Insider Trades FORM Insider Trades ACLS Insider Trades PLAB Insider Trades VECO Insider Trades UCTT Insider Trades COHU Insider Trades Insider Tracking Tools CEO Purchases/Sales CFO Purchases/Sales Top Insider Buying Stocks Top Insider Selling Stocks Insider Trades Screener Insider Trades Newsletter Congressional Stock Trades Insider Trading By Country U.S. Insider Trading Activity Canadian Insider Trading Activity U.K. Insider Trading Activity Australia Insider Trading Activity Latest Articles Meta's Institutional & Insider Data Fuels Bulls Despite DisparityTurbulence for Joby Shares: What's Behind the Recent Dip?UnitedHealth Insiders Double Down: Is UNH Stock a Value Play?Sprouts Stock: Insider Sales, But Strong Bullish Signals5 Hot Small-Cap Insiders Bought at the Peak of Tariff Fears This page (NYSE:ONTO) was last updated on 5/28/2025 by MarketBeat.com Staff From Our PartnersJuly 2025 Rule Change to Impact Retirement InvestorsThere's a massive change from a new rule going into effect this July. 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