Quantum (QMCO) Insider Trading & Ownership $7.92 +0.01 (+0.13%) Closing price 08/7/2025 04:00 PM EasternExtended Trading$7.92 0.00 (-0.06%) As of 05:42 AM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Insider Trades Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Quantum (NASDAQ:QMCO) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage4.50%Number OfInsiders Buying(Last 12 Months)0Number OfInsiders Selling(Last 12 Months)7Amount OfInsider Selling(Last 12 Months)$10.25M Get QMCO Insider Trade Alerts Want to know when executives and insiders are buying or selling Quantum stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address QMCO Insider Buying and Selling by Quarter Quantum 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 TransactionDetails4/21/2025Brian E CabreraSVPSell1,078$9.65$10,402.70 4/21/2025James J LernerCEOSell2,784$9.65$26,865.60 4/21/2025Lewis W MooreheadCAOSell179$9.65$1,727.35 4/15/2025Pacific Investment ManagementMajor ShareholderSell962,127$10.25$9,861,801.75 4/2/2025Laura A NashCAOSell136$12.85$1,747.60 2/3/2025Kenneth P GianellaCFOSell1,279$21.53$27,536.87 1/16/2025Brian E CabreraSVPSell1,996$35.68$71,217.28 1/16/2025Henk Jan SpanjaardCROSell935$35.68$33,360.80 1/16/2025James J LernerCEOSell2,511$35.68$89,592.48 1/16/2025Kenneth P GianellaCFOSell1,487$35.68$53,056.16 Get Insider Trades Delivered To Your InboxEnter your email address below to receive a concise daily summary of insider buying activity, insider selling activity and changes in hedge fund holdings. 11/8/2024Brian E CabreraSVPSell5,387$4.43$23,864.41 11/8/2024Henk Jan SpanjaardCROSell394$4.43$1,745.42 11/8/2024James J LernerCEOSell6,505$4.43$28,817.15 11/8/2024Kenneth P GianellaCFOSell2,590$4.43$11,473.70 11/8/2024Laura A NashCAOSell685$4.43$3,034.55 (Data available from 1/1/2013 forward) QMCO Insider Trading Activity - Frequently Asked Questions Who is on Quantum's Insider Roster? The list of insiders at Quantum includes Brian E Cabrera, Henk Jan Spanjaard, J Michael Dodson, James J Lerner, John Hurley, Kenneth P Gianella, Laura A Nash, Lewis W Moorehead, and Pacific Investment Management. Learn more on insiders at QMCO. What percentage of Quantum stock is owned by insiders? 4.50% of Quantum stock is owned by insiders. Learn more on QMCO's insider holdings. Which Quantum insiders have been selling company stock? The following insiders have sold QMCO shares in the last 24 months: Brian E Cabrera ($108,642.79), Henk Jan Spanjaard ($35,106.22), James J Lerner ($166,899.23), John Hurley ($26,449.20), Kenneth P Gianella ($92,066.73), Laura A Nash ($5,301.35), Lewis W Moorehead ($1,727.35), and Pacific Investment Management ($9,861,801.75). How much insider selling is happening at Quantum? Insiders have sold a total of 994,376 Quantum shares in the last 24 months for a total of $10,297,994.62 sold. Quantum Key ExecutivesMr. James J. Lerner (Age 54)Chairman, President & CEO Compensation: $682.31k1 recent tradesMr. Kenneth P. Gianella (Age 51)Chief Financial Officer Compensation: $362.96kMr. Brian E. Cabrera (Age 59)Senior VP, Chief Legal & Administrative Officer and Secretary Compensation: $399.35k1 recent tradesMr. Eric IsomVice President of Supply Chain & OperationsMs. Laura A. NashChief Accounting Officer1 recent tradesMr. Willem DirvenChief Information OfficerMs. Natasha BeckleyChief Marketing OfficerMr. Jeff MulderSenior Vice President of Product & EngineeringMr. Ross FujiiChief Customer OfficerMr. Henk Jan SpanjaardChief Revenue Officer More Insider Trading Tools from MarketBeat Related Companies LTRX Insider Buying OSS Insider Buying ALOT Insider Buying INVE Insider Buying TACT Insider Buying INTZ Insider Buying SCKT Insider Buying STK Insider Buying AAPL Insider Buying ANET Insider Buying 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 Strategy Insiders Buy In While Analysts Predict Big UpsideThe Bottom Is in For These 3 Small-Cap Stocks Insiders Are Buying3 Catalysts Driving Plug Power’s Turnaround CaseInsider Selling Hits Market Leaders—Should You Be Worried?Insiders Spent Millions on These 3 Stocks Over the Past 2 Months This page (NASDAQ:QMCO) was last updated on 8/8/2025 by MarketBeat.com Staff From Our PartnersProtect Your Bank Account with THESE 4 Simple StepsStarting as soon as a few months from now, the United States government will make a sweeping change to bank ac...Weiss Ratings | SponsoredHIDDEN IN THE BOOK OF GENESIS…“This land I will give to you…” — a 4,000-year-old line from Genesis may hold the key to unlocking a $150 tril...Paradigm Press | SponsoredBREAKING: The House just passed 3 pro-crypto bills!THREE pro-crypto bills just passed the House! 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