Amentum (AMTM) Insider Trading & Ownership $18.70 +0.03 (+0.16%) As of 02:14 PM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Insider Trades Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOwnershipSEC FilingsTrendsBuy This Stock Amentum (NYSE:AMTM) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage18.67%Number OfInsiders Buying(Last 12 Months)2Amount OfInsider Buying(Last 12 Months)$2.18 MNumber OfInsiders Selling(Last 12 Months)0 Get AMTM Insider Trade Alerts Want to know when executives and insiders are buying or selling Amentum stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address AMTM Insider Buying and Selling by Quarter Remove Ads Amentum 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 TransactionDetails2/18/2025Barbara LoughranDirectorBuy4,600$21.23$97,658.00 2/12/2025Steven J DemetriouInsiderBuy100,000$20.81$2,081,000.00 (Data available from 1/1/2013 forward) AMTM Insider Trading Activity - Frequently Asked Questions Who is on Amentum's Insider Roster? The list of insiders at Amentum includes Barbara Loughran, and Steven J Demetriou. Learn more on insiders at AMTM. What percentage of Amentum stock is owned by insiders? 18.67% of Amentum stock is owned by insiders. Learn more on AMTM's insider holdings. Which Amentum insiders have been buying company stock? The following insiders have purchased AMTM shares in the last 24 months: Barbara Loughran ($97,658.00), and Steven J Demetriou ($2,081,000.00). How much insider buying is happening at Amentum? Insiders have purchased a total of 104,600 AMTM shares in the last 24 months for a total of $2,178,658.00 bought. Which members of congress are trading Amentum? William R. Keating (D-MA) and Thomas H. Kean, Jr. (R-NJ) have sold shares of Amentum in the last year totaling $16,000. Amentum Key ExecutivesMr. Steven J. Demetriou (Age 66)Executive Chair 1 recent tradesMr. John E. Heller (Age 62)CEO & Independent Director Mr. Travis Barton Johnson (Age 39)Chief Financial Officer Mr. Stephen A Arnette (Age 56)Chief Operating Officer Ms. Jill BruningChief Technology OfficerMr. Luis GermanChief Information OfficerMr. Nathan RutledgeSenior Vice President & Head of Investor RelationsMr. Stuart YoungChief Legal OfficerMs. Karina VollmerChief Ethics & Compliance OfficerMs. Roela SantosChief Marketing & Communications Officer More Insider Trading Tools from MarketBeat Related Companies GFL Insider Selling RBA Insider Selling Z Insider Selling TOST Insider Selling TRU Insider Selling ZG Insider Selling ICLR Insider Selling RTO Insider Selling ALLE Insider Selling FTAI Insider Selling 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 NVIDIA Insiders Sell: This Is What It Means for the Market Top 3 Insider Stock Buys in March—Are They Still Good in April?Grocery Outlet Insider and Institutional Buyers Signal BottomSentinelOne Insider Selling? Why Investors Should Stay Bullish 3 Companies Buying Back Stock—Why It Matters This page (NYSE:AMTM) was last updated on 3/25/2025 by MarketBeat.com Staff From Our PartnersYour Wealth is Under AttackPlease don't wait—this is your moment to take action. Download your Wealth Protection Guide now, claim your fr...American Alternative | SponsoredA brutally honest economic warning for 2025 (see proof)New York Times best-selling financial author and world-renowned economist Addison Wiggin (a man who’s worked s...Banyan Hill Publishing | Sponsored$2 Trillion Disappears Because of Fed's Secretive New Move$2 trillion has disappeared from the US government's books. The reason why is a new, secretive move being c...Stansberry Research | SponsoredHas Trump finally met his match?Dylan Jovine predicted the 2008 crash over a year before it happened. 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