This company has been marked as potentially delisted and may not be actively trading. Altair Engineering (ALTR) Insider Trading & Ownership Add Compare Share Share Insider Trades Stock AnalysisAnalyst ForecastsEarningsHeadlinesInsider TradesOwnershipShort InterestSustainabilityTrendsBuy This Stock Altair Engineering (NASDAQ:ALTR) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage21.75%Number OfInsiders Buying(Last 12 Months)0Number OfInsiders Selling(Last 12 Months)12Amount OfInsider Selling(Last 12 Months)$41.60M Get ALTR Insider Trade Alerts Want to know when executives and insiders are buying or selling Altair Engineering stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. 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ALTR Insider Buying and Selling by Quarter Altair Engineering 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 TransactionDetails3/17/2025Amy MessanoCMOSell416$111.30$46,300.80 3/17/2025Brian GayleCAOSell182$111.30$20,256.60 3/17/2025James Ralph ScapaCEOSell9$111.30$1,001.70 3/17/2025Jeffrey MarracciniInsiderSell90$111.30$10,017.00 3/17/2025Nelson DiasCROSell1,671$111.30$185,982.30 3/17/2025Stephanie BucknerCOOSell47$111.30$5,231.10 3/6/2025Teresa A HarrisDirectorSell450$111.08$49,986.00 3/3/2025Amy MessanoCMOSell255$111.45$28,419.75 3/3/2025Brian GayleCAOSell184$111.45$20,506.80 3/3/2025Jeffrey MarracciniInsiderSell197$111.45$21,955.65 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. 3/3/2025Matthew Charles BrownCFOSell742$111.45$82,695.90 3/3/2025Nelson DiasCROSell491$111.45$54,721.95 3/3/2025Stephanie BucknerCOOSell62$111.45$6,909.90 2/26/2025Amy MessanoCMOSell235$111.53$26,209.55 2/26/2025Brian GayleCAOSell137$111.53$15,279.61 2/26/2025Matthew Charles BrownCFOSell3,811$111.53$425,040.83 2/26/2025Nelson DiasCROSell373$111.53$41,600.69 2/26/2025Ravi KunjuInsiderSell120$111.53$13,383.60 2/25/2025Teresa A HarrisDirectorSell2,700$111.61$301,347.00 12/23/2024Matthew Charles BrownCFOSell1,048$108.90$114,127.20 12/10/2024Nelson DiasCROSell22,500$106.23$2,390,175.00 12/3/2024James Ralph ScapaCEOSell16,095$105.65$1,700,436.75 11/29/2024James Ralph ScapaCEOSell13,000$105.69$1,373,970.00 11/29/2024Jrs Investments Llcmajor shareholderSell6,500$105.69$686,985.00 11/11/2024Ravi KunjuInsiderSell360$103.65$37,314.00 11/5/2024Jeffrey MarracciniInsiderSell1,824$104.10$189,878.40 11/5/2024Teresa A HarrisDirectorSell620$104.10$64,542.00 10/28/2024James Ralph ScapaCEOSell13,000$102.59$1,333,670.00 10/28/2024Jrs Investments Llcmajor shareholderSell6,500$102.59$666,835.00 10/23/2024Christ Revocable Trustmajor shareholderSell100,000$106.57$10,657,000.00 10/14/2024George J ChristMajor ShareholderSell2,176$95.31$207,394.56 10/11/2024George J ChristMajor ShareholderSell97,824$95.23$9,315,779.52 10/9/2024George J ChristMajor ShareholderSell49,952$95.72$4,781,405.44 10/1/2024Teresa A HarrisDirectorSell620$95.12$58,974.40 9/30/2024James Ralph ScapaCEOSell13,000$95.10$1,236,300.00 9/30/2024Jrs Investments Llcmajor shareholderSell6,500$95.10$618,150.00 9/27/2024Christ Revocable TrustMajor ShareholderSell50,048$95.07$4,758,063.36 9/3/2024Teresa A HarrisDirectorSell620$89.70$55,614.00 (Data available from 1/1/2013 forward) ALTR Insider Trading Activity - Frequently Asked Questions Who is on Altair Engineering's Insider Roster? The list of insiders at Altair Engineering includes Amy Messano, Brian Gayle, Christ Revocable Trust, Gc Investments Llc, George J Christ, Gilma Saravia, James Ralph Scapa, Jeffrey Marraccini, Jrs Investments Llc, Mahalingam Srikanth, Matthew Charles Brown, Nelson Dias, R. Scapa Declaration Of James, Raoul Maitra, Ravi Kunju, Shekar G Ayyar, Stephanie Buckner, and Teresa A Harris. Learn more on insiders at ALTR. What percentage of Altair Engineering stock is owned by insiders? 21.75% of Altair Engineering stock is owned by insiders. Learn more on ALTR's insider holdings. Which Altair Engineering insiders have been selling company stock? The following insiders have sold ALTR shares in the last 24 months: Amy Messano ($1,944,618.80), Brian Gayle ($348,498.13), Christ Revocable Trust ($15,748,543.04), Gc Investments Llc ($1,365,003.67), George J Christ ($59,646,524.23), Gilma Saravia ($153,378.72), James Ralph Scapa ($15,926,920.41), Jeffrey Marraccini ($1,991,840.59), Jrs Investments Llc ($5,424,345.00), Mahalingam Srikanth ($259,647.03), Matthew Charles Brown ($1,062,166.44), Nelson Dias ($2,769,789.11), R. Scapa Declaration Of James ($605,540.00), Raoul Maitra ($99,199.30), Ravi Kunju ($190,535.53), Stephanie Buckner ($12,141.00), and Teresa A Harris ($973,688.20). How much insider selling is happening at Altair Engineering? Insiders have sold a total of 1,439,829 Altair Engineering shares in the last 24 months for a total of $129,853,683.74 sold. Altair Engineering Key ExecutivesMr. James R. Scapa (Age 67)Founder, Chairman & CEO Compensation: $1.66M1 recent tradesMr. Matthew Charles Brown (Age 43)Chief Financial Officer Compensation: $699.2k1 recent tradesMs. Stephanie Buckner (Age 35)Chief Operating Officer Compensation: $452k2 recent tradesMr. Srikanth Mahalingam (Age 53)Chief Technology Officer Compensation: $502kMr. Nelson Dias (Age 57)Chief Revenue Officer Compensation: $436k2 recent tradesMr. Brian Gayle (Age 47)Senior VP, Principal Accounting Officer & Chief Accounting Officer 2 recent tradesMr. David L. Simon (Age 60)Senior Vice President of Investor Relations Mr. Raoul Maitra (Age 52)Chief Legal Officer Ms. Amy Messano (Age 53)Chief Marketing Officer Compensation: $376.74k2 recent tradesMs. Gilma Saravia (Age 48)Chief People Officer Compensation: $453.57k More Insider Trading Tools from MarketBeat Related Companies MCHP Insider Trading FSLR Insider Trading SWKS Insider Trading MTSI Insider Trading LSCC Insider Trading RMBS Insider Trading CRUS Insider Trading SMTC Insider Trading SLAB Insider Trading AMBA Insider Trading 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 Costco Faces Downgrades, Death Cross, Insider SellingReynolds Consumer Products Stock Price: Insiders Signal a BottomBuy, Sell, or Hold? Insiders Pile Into These 3 Healthcare StocksInsiders Trade Millions in NVIDIA-Linked Navitas, Hims, & Shift45 Stocks Insiders Are Selling That Analysts Say Buy This page (NASDAQ:ALTR) was last updated on 8/30/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredEveryone’s watching Nvidia right now. Here’s why I’m excited.So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...Timothy Sykes | SponsoredHe Called Nvidia at $1.10. Now, He Says THIS Stock Will…The original Magnificent Seven returned 16,894%—turning $7K into $1.18 million. 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