Siga Technologies (SIGA) Stock Chart & Stock Price History $9.06 -0.31 (-3.31%) Closing price 04:00 PM EasternExtended Trading$9.19 +0.13 (+1.43%) As of 06:57 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 AnalysisChartCompetitorsDividendEarningsFinancialsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Siga Technologies Stock Price Performance The Siga Technologies (SIGA) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 7.47%, with a year-to-date return of 50.75%. In the past month, the stock has decreased 0.77%, reflecting recent market activity. As of the latest close, Siga Technologies traded at $9.37 with a market cap of $670.95 million and volume of 548,574 shares. Five years ago, the stock traded at $7.07, representing a 28.15% increase over that period. At the time, it had a market cap of $552.32 million and a volume of 529,892 shares. Receive SIGA Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Siga Technologies 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+2.14%1 Month Performance-0.77%3 Month Performance+46.37%Year-To-Date Performance+50.75%1 Year Performance+7.47%5 Year Performance+28.15% SIGA Stock Chart for Tuesday, September, 23, 2025 SIGA Chart by TradingView Siga Technologies 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 Capitalization09/22/2025$8.78$9.37+6.72%$9.38$8.82548,574 shs$670.95 million09/19/2025$8.87$8.78-1.01%$9.00$8.78828,222 shs$628.70 million09/18/2025$8.66$8.87+2.42%$8.87$8.64264,158 shs$635.18 million09/17/2025$8.99$8.66-3.67%$9.03$8.56436,057 shs$620.14 million09/16/2025$9.00$8.99-0.11%$9.13$8.93617,555 shs$643.74 million09/15/2025$8.92$9.00+0.90%$9.16$8.87542,351 shs$644.49 million09/12/2025$9.07$8.92-1.65%$9.04$8.80399,769 shs$638.76 million09/11/2025$8.72$9.07+4.01%$9.09$8.63565,925 shs$649.50 million09/10/2025$8.76$8.72-0.46%$8.80$8.49538,673 shs$624.40 million09/09/2025$8.66$8.76+1.15%$8.92$8.55736,228 shs$627.30 million Get the Latest News and Ratings for SIGA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Siga Technologies and its competitors with MarketBeat's FREE daily newsletter. 09/08/2025$8.42$8.66+2.85%$8.71$8.34570,899 shs$620.14 million09/05/2025$8.49$8.42-0.82%$8.53$8.31383,355 shs$602.96 million09/04/2025$8.61$8.49-1.39%$8.58$8.34545,080 shs$607.94 million09/03/2025$8.63$8.61-0.23%$8.80$8.45455,147 shs$616.56 million09/02/2025$8.39$8.63+2.86%$8.82$8.39819,633 shs$617.99 million09/01/2025$8.39$8.39$8.39$8.23354,801 shs$600.77 million08/29/2025$8.21$8.39+2.19%$8.39$8.23354,801 shs$600.77 million08/28/2025$8.25$8.21-0.48%$8.38$8.19324,065 shs$587.92 million08/27/2025$8.49$8.25-2.83%$8.47$8.20440,025 shs$590.78 million08/26/2025$8.70$8.49-2.41%$8.73$8.37555,971 shs$607.94 million08/25/2025$9.13$8.70-4.71%$9.20$8.66429,629 shs$623.01 million08/22/2025$8.75$9.13+4.34%$9.13$8.64861,154 shs$653.80 million Related Companies CG Oncology Stock Price Chart Mineralys Therapeutics Stock Price Chart ImmunityBio Stock Price Chart Catalyst Pharmaceuticals Stock Price Chart Alvotech Stock Price Chart Ocular Therapeutix Stock Price Chart Belite Bio Stock Price Chart IDEAYA Biosciences Stock Price Chart Agios Pharmaceuticals Stock Price Chart ANI Pharmaceuticals Stock Price Chart Receive SIGA Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Siga Technologies and its competitors with MarketBeat's FREE daily newsletter. 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