Prime Medicine (PRME) Insider Trading & Ownership $5.32 +0.20 (+3.91%) As of 04:00 PM Eastern Add Compare Share Share Insider Trades Stock AnalysisChartCompetitorsHeadlinesInsider TradesSEC FilingsShort InterestTrendsBuy This Stock Prime Medicine (NASDAQ:PRME) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage22.74%Number OfInsiders Buying(Last 3 Years)2Amount OfInsider Buying(Last 3 Years)$20.40MNumber OfInsiders Selling(Last 3 Years)1Amount OfInsider Selling(Last 3 Years)$6.08M Get PRME Insider Trade Alerts Want to know when executives and insiders are buying or selling Prime Medicine stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. 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PRME Insider Buying and Selling by Quarter Prime Medicine 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 TransactionDetails5/19/20232019 Gp L.L.C. GvMajor ShareholderSell63,212$13.88$877,382.56 5/17/20232019 Gp L.L.C. GvMajor ShareholderSell15,000$12.77$191,550.00 5/15/20232019 Gp L.L.C. GvMajor ShareholderSell157,952$12.74$2,012,308.48 5/12/20232019 Gp L.L.C. GvMajor ShareholderSell27,290$12.72$347,128.80 5/10/20232019 Gp L.L.C. GvMajor ShareholderSell87,397$14.03$1,226,179.91 5/8/20232019 Gp L.L.C. GvMajor ShareholderSell100,772$14.13$1,423,908.36 10/24/20222019 Gp L.L.C. GvMajor ShareholderBuy800,000$17.00$13,600,000.00 10/24/2022Thomas CahillDirectorBuy400,000$17.00$6,800,000.00 (Data available from 1/1/2013 forward) PRME Insider Trading Activity - Frequently Asked Questions Who is on Prime Medicine's Insider Roster? The list of insiders at Prime Medicine includes 2019 Gp L.L.C. Gv, and Thomas Cahill. Learn more on insiders at PRME. What percentage of Prime Medicine stock is owned by insiders? 22.74% of Prime Medicine stock is owned by insiders. Learn more on PRME's insider holdings. More Insider Trading Tools from MarketBeat Related Companies Xenon Pharmaceuticals Insider Trading Viking Therapeutics Insider Trading CG Oncology Insider Trading Organon & Co. Insider Trading Ultragenyx Pharmaceutical Insider Trading Kiniksa Pharmaceuticals International Insider Trading Gemini Therapeutics Insider Trading Immunovant Insider Trading Mineralys Therapeutics Insider Trading Bausch Health Cos 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 Top Insider Buys and Sells From September: Buy, Sell, or Hold?NuScale, Rocket Lab Face Heavy Insider Selling After Surges3 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’t This page (NASDAQ:PRME) was last updated on 9/29/2025 by MarketBeat.com Staff From Our PartnersTrump’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 | SponsoredHe Called Nvidia at $1.10. 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