Phathom Pharmaceuticals (PHAT) Stock Chart & Stock Price History $12.44 -0.14 (-1.11%) Closing price 04:00 PM EasternExtended Trading$12.45 +0.01 (+0.08%) As of 06:33 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 Phathom Pharmaceuticals Stock Price Performance The Phathom Pharmaceuticals (PHAT) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 20.87%, with a year-to-date return of 53.20%. In the past month, the stock has increased 29.18%, reflecting recent market activity. As of the latest close, Phathom Pharmaceuticals traded at $12.58 with a market cap of $892.48 million and volume of 1.56 million shares. Five years ago, the stock traded at $35.40, representing a 64.86% decrease over that period. At the time, it had a market cap of $1.12 billion and a volume of 36,195 shares. Receive PHAT Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Phathom Pharmaceuticals 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. 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Read our full terms of service and privacy policy. 5 Day Performance+4.45%1 Month Performance+29.18%3 Month Performance+201.94%Year-To-Date Performance+53.20%1 Year Performance-20.87%5 Year Performance-64.86% PHAT Stock Chart for Wednesday, August, 27, 2025 PHAT Chart by TradingView Phathom Pharmaceuticals 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$11.57$12.58+8.73%$12.67$11.421.56 million shs$892.48 million08/25/2025$11.91$11.57-2.85%$11.99$11.501.02 million shs$820.78 million08/22/2025$10.95$11.91+8.77%$12.16$10.961.99 million shs$844.90 million08/21/2025$10.63$10.95+3.01%$11.20$10.521.12 million shs$776.79 million08/20/2025$10.38$10.63+2.41%$10.79$10.13915,168 shs$754.14 million08/19/2025$10.10$10.38+2.77%$10.40$9.82863,031 shs$736.36 million08/18/2025$10.24$10.10-1.37%$10.50$10.07689,452 shs$716.49 million08/15/2025$10.47$10.24-2.20%$10.85$10.14845,139 shs$726.43 million08/14/2025$10.46$10.47+0.06%$11.00$10.35884,362 shs$742.74 million08/13/2025$10.38$10.46+0.81%$11.19$10.391.18 million shs$742.36 million Get the Latest News and Ratings for PHAT and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Phathom Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 08/12/2025$10.28$10.38+0.97%$10.76$10.081.04 million shs$736.36 million08/11/2025$9.74$10.28+5.54%$10.47$9.521.58 million shs$729.26 million08/08/2025$9.40$9.74+3.62%$9.98$9.341.37 million shs$679.95 million08/07/2025$8.68$9.40+8.29%$10.09$9.152.19 million shs$656.25 million08/06/2025$8.38$8.68+3.58%$8.72$8.021.75 million shs$605.95 million08/05/2025$8.64$8.38-3.01%$8.71$8.33536,604 shs$585.01 million08/04/2025$8.35$8.64+3.47%$8.77$8.30769,009 shs$603.19 million08/01/2025$8.54$8.35-2.22%$8.50$8.18501,927 shs$582.95 million07/31/2025$8.71$8.54-1.95%$9.23$8.49669,643 shs$596.18 million07/30/2025$8.62$8.71+1.04%$9.13$8.57889,609 shs$608.05 million07/29/2025$8.80$8.62-2.05%$8.98$8.58824,597 shs$601.80 million07/28/2025$9.63$8.80-8.62%$10.02$8.801.05 million shs$614.33 million Related Companies Crinetics Pharmaceuticals Stock Price Chart HUTCHMED Stock Price Chart Ultragenyx Pharmaceutical Stock Price Chart MorphoSys Stock Price Chart Arrowhead Pharmaceuticals Stock Price Chart NewAmsterdam Pharma Stock Price Chart Immunovant Stock Price Chart Gemini Therapeutics Stock Price Chart Recursion Pharmaceuticals Stock Price Chart Catalyst Pharmaceuticals Stock Price Chart Receive PHAT Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Phathom Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 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