Kiniksa Pharmaceuticals International (KNSA) Stock Chart & Stock Price History $31.98 +1.72 (+5.68%) Closing price 08/1/2025 04:00 PM EasternExtended Trading$32.79 +0.81 (+2.54%) As of 08/1/2025 08:00 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 Kiniksa Pharmaceuticals International Stock Price Performance The Kiniksa Pharmaceuticals International (KNSA) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 27.36%, with a year-to-date return of 61.68%. In the past month, the stock has increased 16.55%, reflecting recent market activity. As of the latest close, Kiniksa Pharmaceuticals International traded at $31.98 with a market cap of $2.33 billion and volume of 1.07 million shares. Five years ago, the stock traded at $19.52, representing a 63.83% increase over that period. At the time, it had a market cap of $1.17 billion and a volume of 319,862 shares. Receive KNSA Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Kiniksa Pharmaceuticals International and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+18.27%1 Month Performance+16.55%3 Month Performance+15.66%Year-To-Date Performance+61.68%1 Year Performance+27.36%5 Year Performance+63.83% KNSA Stock Chart for Saturday, August, 2, 2025 KNSA Chart by TradingView Kiniksa Pharmaceuticals International 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 Capitalization08/01/2025$30.26$31.98+5.68%$32.15$30.041.07 million shs$2.33 billion07/31/2025$30.06$30.26+0.67%$30.84$29.90617,580 shs$2.21 billion07/30/2025$30.37$30.06-1.02%$31.05$29.661.22 million shs$2.19 billion07/29/2025$27.04$30.37+12.32%$31.92$29.241.68 million shs$2.22 billion07/28/2025$26.33$27.04+2.70%$27.34$26.51669,914 shs$1.97 billion07/25/2025$26.90$26.33-2.12%$26.97$26.27623,373 shs$1.92 billion07/24/2025$27.12$26.90-0.81%$27.39$26.52405,658 shs$1.96 billion07/23/2025$27.64$27.12-1.88%$28.17$27.03380,462 shs$1.98 billion07/22/2025$28.42$27.64-2.74%$28.56$27.44456,499 shs$2.02 billion07/21/2025$29.02$28.42-2.07%$29.24$28.41492,519 shs$2.07 billion Get the Latest News and Ratings for KNSA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Kiniksa Pharmaceuticals International and its competitors with MarketBeat's FREE daily newsletter. 07/18/2025$28.84$29.02+0.62%$29.58$28.83841,396 shs$2.12 billion07/17/2025$28.42$28.84+1.48%$28.91$28.19703,093 shs$2.10 billion07/16/2025$28.09$28.42+1.17%$28.96$28.30339,739 shs$2.07 billion07/15/2025$28.80$28.09-2.47%$28.89$27.95404,501 shs$2.05 billion07/14/2025$28.09$28.80+2.53%$29.07$28.17406,730 shs$2.10 billion07/11/2025$28.95$28.09-2.97%$28.74$27.92355,269 shs$2.05 billion07/10/2025$28.80$28.95+0.52%$29.09$28.50356,649 shs$2.11 billion07/09/2025$27.21$28.80+5.84%$29.25$27.50908,924 shs$2.10 billion07/08/2025$27.95$27.21-2.65%$28.16$27.06636,700 shs$1.99 billion07/07/2025$27.86$27.95+0.34%$28.17$27.30728,425 shs$2.04 billion07/04/2025$27.86$27.86$27.92$27.12558,076 shs$2.03 billion07/03/2025$27.44$27.86+1.51%$27.92$27.12558,076 shs$2.03 billion07/02/2025$27.24$27.44+0.73%$27.97$26.89946,608 shs$2.00 billion07/01/2025$27.67$27.24-1.55%$27.90$27.24701,980 shs$1.99 billion Related Companies Blueprint Medicines Stock Price Chart Roivant Sciences Stock Price Chart Legend Biotech Stock Price Chart Elanco Animal Health Stock Price Chart Regencell Bioscience Stock Price Chart Revolution Medicines Stock Price Chart Grifols Stock Price Chart TG Therapeutics Stock Price Chart Nuvalent Stock Price Chart Rhythm Pharmaceuticals Stock Price Chart Receive KNSA Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Kiniksa Pharmaceuticals International and its competitors with MarketBeat's FREE daily newsletter. 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