Tourmaline Bio (TRML) Stock Chart & Stock Price History $47.90 +0.03 (+0.06%) Closing price 10/3/2025 04:00 PM EasternExtended Trading$48.66 +0.76 (+1.58%) As of 10/3/2025 07:16 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 ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Tourmaline Bio Stock Price Performance The Tourmaline Bio (TRML) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 79.20%, with a year-to-date return of 136.19%. In the past month, the stock has increased 79.13%, reflecting recent market activity. As of the latest close, Tourmaline Bio traded at $47.90 with a market cap of $1.23 billion and volume of 380,504 shares. Receive TRML Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Tourmaline Bio 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. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy. 5 Day Performance+0.15%1 Month Performance+79.13%3 Month Performance+185.54%Year-To-Date Performance+136.19%1 Year Performance+79.20% TRML Stock Chart for Sunday, October, 5, 2025 TRML Chart by TradingView Tourmaline Bio 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 Capitalization10/03/2025$47.87$47.90+0.06%$47.90$47.84380,504 shs$1.23 billion10/02/2025$47.86$47.87+0.02%$47.94$47.84303,812 shs$1.23 billion10/01/2025$47.83$47.86+0.06%$47.88$47.76498,987 shs$1.23 billion09/30/2025$48.16$47.83-0.69%$47.90$47.75523,158 shs$1.23 billion09/29/2025$47.74$48.16+0.88%$48.27$47.75830,189 shs$1.24 billion09/26/2025$47.72$47.74+0.04%$47.77$47.72963,466 shs$1.23 billion09/25/2025$47.75$47.72-0.06%$47.77$47.67803,401 shs$1.23 billion09/24/2025$47.73$47.75+0.04%$47.76$47.73851,234 shs$1.23 billion09/23/2025$47.75$47.73-0.04%$47.79$47.72873,854 shs$1.23 billion09/22/2025$47.73$47.75+0.04%$47.79$47.71633,791 shs$1.23 billion Get the Latest News and Ratings for TRML and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Tourmaline Bio and its competitors with MarketBeat's FREE daily newsletter. 09/19/2025$47.69$47.73+0.08%$47.76$47.681.10 million shs$1.23 billion09/18/2025$47.70$47.69-0.02%$47.77$47.671.57 million shs$1.23 billion09/17/2025$47.71$47.70-0.02%$47.75$47.671.73 million shs$1.23 billion09/16/2025$47.65$47.71+0.13%$47.72$47.66752,262 shs$1.23 billion09/15/2025$47.61$47.65+0.08%$47.70$47.62964,168 shs$1.22 billion09/12/2025$47.60$47.61+0.02%$47.70$47.59988,444 shs$1.22 billion09/11/2025$47.60$47.60$47.64$47.581.71 million shs$1.22 billion09/10/2025$47.64$47.60-0.08%$47.64$47.583.13 million shs$1.22 billion09/09/2025$30.18$47.64+57.85%$47.69$47.5722.67 million shs$1.22 billion09/08/2025$26.74$30.18+12.86%$30.59$26.311.07 million shs$775.32 million09/05/2025$25.10$26.74+6.53%$28.46$25.73447,733 shs$686.95 million09/04/2025$25.11$25.10-0.04%$25.53$24.69341,324 shs$644.82 million Related Companies Krystal Biotech Stock Price Chart PTC Therapeutics Stock Price Chart Jyong Biotech Stock Price Chart Arrowhead Pharmaceuticals Stock Price Chart Arcellx Stock Price Chart Vaxcyte Stock Price Chart Crinetics Pharmaceuticals Stock Price Chart Protagonist Therapeutics Stock Price Chart Kymera Therapeutics Stock Price Chart MoonLake Immunotherapeutics Stock Price Chart Receive TRML Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Tourmaline Bio and its competitors with MarketBeat's FREE daily newsletter. 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