TransMedics Group (TMDX) Stock Chart & Stock Price History $117.38 +2.20 (+1.91%) Closing price 04:00 PM EasternExtended Trading$118.60 +1.22 (+1.04%) As of 06:16 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 Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock TransMedics Group Stock Price Performance The TransMedics Group (TMDX) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 33.35%, with a year-to-date return of 88.26%. In the past month, the stock has increased 8.56%, reflecting recent market activity. As of the latest close, TransMedics Group traded at $115.18 with a market cap of $3.93 billion and volume of 685,622 shares. Five years ago, the stock traded at $17.87, representing a 556.86% increase over that period. At the time, it had a market cap of $492.86 million and a volume of 126,672 shares. Receive TMDX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for TransMedics Group and its competitors with MarketBeat's FREE daily newsletter. Subscribe Now View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. 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Read our full terms of service and privacy policy. 5 Day Performance-2.06%1 Month Performance+8.56%3 Month Performance-8.68%Year-To-Date Performance+88.26%1 Year Performance-33.35%5 Year Performance+556.86% TMDX Stock Chart for Wednesday, August, 27, 2025 TMDX Chart by TradingView TransMedics Group Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization08/26/2025$114.97$115.18+0.18%$116.65$113.90685,622 shs$3.93 billion08/25/2025$119.85$114.97-4.07%$122.85$114.72904,946 shs$3.92 billion08/22/2025$118.81$119.85+0.88%$121.79$117.171.03 million shs$4.09 billion08/21/2025$121.88$118.81-2.52%$121.76$117.43694,918 shs$4.05 billion08/20/2025$122.68$121.88-0.65%$122.77$118.25834,118 shs$4.15 billion08/19/2025$125.65$122.68-2.36%$127.48$122.17659,968 shs$4.18 billion08/18/2025$127.55$125.65-1.49%$129.01$124.68563,688 shs$4.28 billion08/15/2025$129.74$127.55-1.69%$130.02$126.23601,350 shs$4.35 billion08/14/2025$132.04$129.74-1.74%$131.99$126.78875,947 shs$4.42 billion08/13/2025$131.13$132.04+0.69%$133.54$127.70995,284 shs$4.50 billion Get the Latest News and Ratings for TMDX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for TransMedics Group and its competitors with MarketBeat's FREE daily newsletter. 08/12/2025$127.26$131.13+3.04%$133.00$125.891.24 million shs$4.47 billion08/11/2025$114.50$127.26+11.14%$133.18$125.002.08 million shs$4.34 billion08/08/2025$116.05$114.50-1.34%$118.68$114.30731,219 shs$3.90 billion08/07/2025$118.80$116.05-2.31%$120.33$114.33869,973 shs$3.96 billion08/06/2025$125.74$118.80-5.52%$124.91$116.581.17 million shs$4.05 billion08/05/2025$128.50$125.74-2.15%$128.75$122.631.11 million shs$4.29 billion08/04/2025$120.55$128.50+6.59%$131.85$123.101.90 million shs$4.38 billion08/01/2025$118.97$120.55+1.33%$122.76$114.281.78 million shs$4.08 billion07/31/2025$107.70$118.97+10.46%$124.50$111.303.86 million shs$4.02 billion07/30/2025$104.83$107.70+2.74%$109.90$105.902.12 million shs$3.64 billion07/29/2025$105.24$104.83-0.39%$106.90$104.711.11 million shs$3.55 billion07/28/2025$108.12$105.24-2.66%$110.00$105.00884,903 shs$3.56 billion Related Companies Smith & Nephew SNATS Stock Price Chart Solventum Stock Price Chart Penumbra Stock Price Chart Stevanato Group Stock Price Chart Glaukos Stock Price Chart Bausch + Lomb Stock Price Chart iRhythm Technologies Stock Price Chart Soleno Therapeutics Stock Price Chart Envista Stock Price Chart LivaNova Stock Price Chart Receive TMDX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for TransMedics Group and its competitors with MarketBeat's FREE daily newsletter. 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