ALT5 Sigma (ALTS) Stock Chart & Stock Price History $7.21 +0.25 (+3.59%) Closing price 08/14/2025 04:00 PM EasternExtended Trading$7.32 +0.12 (+1.60%) As of 08/14/2025 07:59 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 AnalysisChartCompetitorsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock ALT5 Sigma Stock Price Performance The ALT5 Sigma (ALTS) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 298.34%, with a year-to-date return of 55.05%. In the past month, the stock has increased 0.56%, reflecting recent market activity. As of the latest close, ALT5 Sigma traded at $7.21 with a market cap of $155.81 million and volume of 16.35 million shares. 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Email Address 5 Day Performance-19.62%1 Month Performance+0.56%3 Month Performance+15.36%Year-To-Date Performance+55.05%1 Year Performance+298.34% ALTS Stock Chart for Friday, August, 15, 2025 ALTS Chart by TradingView ALT5 Sigma 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 Capitalization08/14/2025$6.96$7.21+3.59%$7.58$7.0316.35 million shs$155.81 million08/13/2025$5.96$6.96+16.78%$7.04$6.1021.11 million shs$140.17 million08/12/2025$6.60$5.96-9.70%$7.20$5.1229.45 million shs$120.05 million08/11/2025$8.97$6.60-26.42%$9.76$6.0257.76 million shs$132.92 million08/08/2025$8.18$8.97+9.66%$9.04$8.05570,076 shs$180.66 million08/07/2025$6.77$8.18+20.83%$8.20$6.64567,937 shs$164.75 million08/06/2025$6.73$6.77+0.59%$6.84$6.3698,021 shs$136.37 million08/05/2025$6.81$6.73-1.17%$6.95$6.59131,129 shs$117.44 million08/04/2025$6.28$6.81+8.44%$6.83$6.30142,812 shs$118.83 million08/01/2025$6.20$6.28+1.29%$6.39$6.00126,244 shs$109.59 million Get the Latest News and Ratings for ALTS and Related StocksEnter your email address below to receive the latest news and analysts' ratings for ALT5 Sigma and its competitors with MarketBeat's FREE daily newsletter. 07/31/2025$6.23$6.20-0.48%$6.68$6.16172,720 shs$108.22 million07/30/2025$6.03$6.23+3.32%$6.58$6.08257,602 shs$108.71 million07/29/2025$6.98$6.03-13.61%$6.99$5.98375,212 shs$105.22 million07/28/2025$7.08$6.98-1.41%$7.30$6.85234,539 shs$121.84 million07/25/2025$7.10$7.08-0.28%$7.35$6.91268,125 shs$123.58 million07/24/2025$7.29$7.10-2.61%$7.60$6.95257,857 shs$123.90 million07/23/2025$7.22$7.29+0.97%$7.46$6.97198,439 shs$127.21 million07/22/2025$7.37$7.22-2.04%$7.70$7.10149,169 shs$125.99 million07/21/2025$7.32$7.37+0.68%$7.84$7.30212,294 shs$128.64 million07/18/2025$7.82$7.32-6.39%$8.07$7.27214,815 shs$127.77 million07/17/2025$7.67$7.82+1.96%$8.12$7.60307,240 shs$136.46 million07/16/2025$7.17$7.67+6.97%$7.88$7.17313,619 shs$133.84 million07/15/2025$6.96$7.17+3.02%$7.26$6.60300,487 shs$125.15 million07/14/2025$7.88$6.96-11.68%$7.95$6.90252,093 shs$121.45 million Related Companies KURA Stock Price Chart SAGE Stock Price Chart ORKA Stock Price Chart SLDB Stock Price Chart SEPN Stock Price Chart OPT Stock Price Chart PGEN Stock Price Chart RZLT Stock Price Chart RAPP Stock Price Chart TERN Stock Price Chart Receive ALTS Stock News and Ratings via EmailSign-up to receive the latest news and ratings for ALT5 Sigma and its competitors with MarketBeat's FREE daily newsletter. 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