MBX Biosciences (MBX) Insider Trading & Ownership $12.16 +1.03 (+9.25%) Closing price 08/8/2025 04:00 PM EasternExtended Trading$11.79 -0.37 (-3.03%) As of 08/8/2025 07:02 PM 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 TradesOwnershipSEC FilingsTrendsBuy This Stock MBX Biosciences (NYSE:MBX) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage52.19%Number OfInsiders Buying(Last 12 Months)5Amount OfInsider Buying(Last 12 Months)$20.60MNumber OfInsiders Selling(Last 12 Months)0 Get MBX Insider Trade Alerts Want to know when executives and insiders are buying or selling MBX Biosciences stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address MBX Insider Buying and Selling by Quarter MBX Biosciences 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 TransactionDetails4/8/2025Ora H PescovitzDirectorBuy7,693$5.89$45,311.77 2/18/2025Carl L GordonDirectorBuy143,170$10.84$1,551,962.80 2/14/2025Carl L GordonDirectorBuy47,502$9.87$468,844.74 2/4/2025P. Kent HawrylukCEOBuy50,000$10.69$534,500.00 9/16/2024Edward T MathersDirectorBuy500,000$16.00$8,000,000.00 9/16/2024Life Sciences X L.P. FrazierMajor ShareholderBuy625,000$16.00$10,000,000.00 (Data available from 1/1/2013 forward) MBX Insider Trading Activity - Frequently Asked Questions Who is on MBX Biosciences' Insider Roster? The list of insiders at MBX Biosciences includes Carl L Gordon, Edward T Mathers, Life Sciences X L.P. Frazier, Ora H Pescovitz, and P. Kent Hawryluk. Learn more on insiders at MBX. What percentage of MBX Biosciences stock is owned by insiders? 52.19% of MBX Biosciences stock is owned by insiders. Learn more on MBX's insider holdings. Which MBX Biosciences insiders have been buying company stock? The following insiders have purchased MBX shares in the last 24 months: Carl L Gordon ($2,020,807.54), Edward T Mathers ($8,000,000.00), Life Sciences X L.P. Frazier ($10,000,000.00), Ora H Pescovitz ($45,311.77), and P. Kent Hawryluk ($534,500.00). How much insider buying is happening at MBX Biosciences? Insiders have purchased a total of 1,373,365 MBX shares in the last 24 months for a total of $20,600,619.31 bought. MBX Biosciences Key ExecutivesMr. Peter Kent Hawryluk (Age 55)CEO, President & Director Compensation: $571.2kDr. Steven J. Prestrelski M.B.A. (Age 60)MBA, Ph.D., Chief Scientific Officer Mr. Matt GambinoVice President of MarketingMs. Michelle Graham (Age 57)Chief Human Resources Officer Dr. Salomon Azoulay (Age 67)Chief Medical Officer More Insider Trading Tools from MarketBeat Related Companies Biohaven Insider Trading Aurinia Pharmaceuticals Insider Trading Janux Therapeutics Insider Trading Dyne Therapeutics Insider Trading Travere Therapeutics Insider Trading Schrodinger Insider Trading Edgewise Therapeutics Insider Trading ANI Pharmaceuticals Insider Trading WAVE Life Sciences Insider Trading 89BIO 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 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 (NYSE:MBX) was last updated on 8/9/2025 by MarketBeat.com Staff From Our PartnersYour blueprint for crypto wealthMark August 12th on your calendar. 27 of crypto's most successful minds are about to reveal everything…Crypto 101 Media | SponsoredTrump’s national nightmare is herePorter Stansberry and Jeff Brown say a new U.S. national emergency is already underway — and it could trigger ...Porter & Company | 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 | SponsoredMan Who Called Nvidia at $1.10 Says Buy This Now...In 2004, one man called Nvidia before just about anyone knew it existed. 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