OneStream (OS) Insider Trading & Ownership $20.27 +0.43 (+2.17%) Closing price 09/22/2025 04:00 PM EasternExtended Trading$20.24 -0.02 (-0.12%) As of 09:26 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 ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock OneStream (NASDAQ:OS) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage12.77%Number OfInsiders Buying(Last 12 Months)0Number OfInsiders Selling(Last 12 Months)8Amount OfInsider Selling(Last 12 Months)$239.49M Get OS Insider Trade Alerts Want to know when executives and insiders are buying or selling OneStream stock? 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OS Insider Buying and Selling by Quarter OneStream 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 TransactionDetails9/19/2025John KinzerDirectorSell30,000$20.00$600,000.00 9/16/2025Ken HohensteinCROSell40,000$18.69$747,600.00 9/15/2025William A KoefoedCFOSell8,943$19.03$170,185.29 8/18/2025Ken HohensteinCROSell20,000$21.56$431,200.00 7/25/2025William A KoefoedCFOSell25,000$25.00$625,000.00 7/18/2025Ken HohensteinCROSell20,000$25.12$502,400.00 6/25/2025William A KoefoedCFOSell25,000$26.77$669,250.00 6/20/2025John KinzerDirectorSell30,000$28.26$847,800.00 6/18/2025Ken HohensteinCROSell20,000$28.28$565,600.00 6/11/2025Craig ColbyMajor ShareholderSell6,279$28.23$177,256.17 6/11/2025Ken HohensteinCROSell6,280$28.23$177,284.40 6/11/2025Thomas Anthony SheaCEOSell9,913$28.23$279,843.99 6/11/2025William A KoefoedCFOSell6,501$28.23$183,523.23 5/27/2025William A KoefoedCFOSell25,000$28.76$719,000.00 5/19/2025Ken HohensteinCROSell20,000$27.67$553,400.00 4/9/2025John KinzerDirectorSell40,000$20.28$811,200.00 2/18/2025William A. KoefoedCFOSell10,000$25.04$250,400.00 1/15/2025William A. KoefoedCFOSell10,000$26.57$265,700.00 12/13/2024Craig ColbyPresidentSell280,000$29.71$8,318,800.00 12/13/2024William A. KoefoedCFOSell13,765$30.00$412,950.00 11/27/2024Kkr Group Partnership L.P.Major ShareholderSell956,462$29.99$28,684,295.38 11/27/2024Michael BurklandDirectorSell9,541$31.00$295,771.00 11/18/2024Kkr Group Partnership L.P.Major ShareholderSell6,376,411$29.99$191,228,565.89 11/18/2024Michael BurklandDirectorSell63,608$31.00$1,971,848.00 (Data available from 1/1/2013 forward) OS Insider Trading Activity - Frequently Asked Questions Who is on OneStream's Insider Roster? The list of insiders at OneStream includes Craig Colby, John Kinzer, Ken Hohenstein, Kkr Group Partnership L.P., Michael Burkland, Thomas Anthony Shea, William A Koefoed. Learn more on insiders at OS. What percentage of OneStream stock is owned by insiders? 12.77% of OneStream stock is owned by insiders. Learn more on OS's insider holdings. Which OneStream insiders have been selling company stock? The following insiders have sold OS shares in the last 24 months: Craig Colby ($12,275,518.87), John Kinzer ($2,259,000.00), Ken Hohenstein ($2,977,484.40), Kkr Group Partnership L.P. ($268,067,900.67), Michael Burkland ($2,267,619.00), Thomas Anthony Shea ($279,843.99), and William A Koefoed ($2,366,958.52). How much insider selling is happening at OneStream? Insiders have sold a total of 10,827,849 OneStream shares in the last 24 months for a total of $291,800,375.45 sold. OneStream Key ExecutivesMr. Thomas Shea (Age 54)CEO & Director Mr. Craig Colby (Age 54)President 1 recent tradesMr. William A. Koefoed Jr. (Age 59)Chief Financial Officer 5 recent tradesMr. Robert PowersChief Technology OfficerMs. Holly KoczotSenior VP, General Counsel & SecretaryMr. Timothy A. Minahan (Age 54)Chief Marketing Officer Ms. Danielle CraneChief People OfficerMr. Ken HohensteinChief Revenue Officer6 recent tradesMs. Stephanie CrampSenior Vice President of Global AlliancesMr. Matthew RodgersExecutive Vice President of EMEA More Insider Trading Tools from MarketBeat Related Companies Unity Software Insider Transactions Gen Digital Insider Transactions IonQ Insider Transactions Docusign Insider Transactions Okta Insider Transactions Twilio Insider Transactions Bentley Systems Insider Transactions Tempus AI Insider Transactions Dynatrace Insider Transactions Rubrik Insider Transactions 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 3 Small Caps That Insiders Are Buying $100 Million Buyback in Upwork Stock Follows a Strong Quarter Insiders Sell These High-Quality Stocks: Why Investors Shouldn’tCoreWeave and Madrigal's Insider Trades Flash Bullish SignalsPalantir Insider Selling: Risk Signal or Normal Activity? 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