Annexon (ANNX) Stock Chart & Stock Price History $2.60 +0.16 (+6.56%) Closing price 08/13/2025 04:00 PM EasternExtended Trading$2.61 +0.01 (+0.38%) As of 08/13/2025 06:40 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 EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Annexon Stock Price Performance The Annexon (ANNX) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 53.65%, with a year-to-date return of -49.32%. In the past month, the stock has decreased 0.38%, reflecting recent market activity. As of the latest close, Annexon traded at $2.60 with a market cap of $285.26 million and volume of 1.91 million shares. Five years ago, the stock traded at $26.17, representing a 90.06% decrease over that period. At the time, it had a market cap of $1.03 billion and a volume of 237,133 shares. Receive ANNX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Annexon and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+10.17%1 Month Performance-0.38%3 Month Performance+47.73%Year-To-Date Performance-49.32%1 Year Performance-53.65%5 Year Performance-90.06% ANNX Stock Chart for Thursday, August, 14, 2025 ANNX Chart by TradingView Annexon 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 Capitalization08/13/2025$2.44$2.60+6.56%$2.71$2.451.91 million shs$285.26 million08/12/2025$2.35$2.44+3.83%$2.45$2.35417,714 shs$267.69 million08/11/2025$2.36$2.35-0.42%$2.40$2.31466,225 shs$257.82 million08/08/2025$2.37$2.36-0.42%$2.43$2.341.10 million shs$258.92 million08/07/2025$2.35$2.37+0.85%$2.39$2.31882,051 shs$260.02 million08/06/2025$2.48$2.35-5.24%$2.45$2.35568,949 shs$257.82 million08/05/2025$2.53$2.48-1.98%$2.56$2.44631,127 shs$272.08 million08/04/2025$2.45$2.53+3.27%$2.62$2.441.03 million shs$277.58 million08/01/2025$2.40$2.45+2.08%$2.47$2.29871,731 shs$268.80 million07/31/2025$2.59$2.40-7.34%$2.60$2.40685,758 shs$263.30 million Get the Latest News and Ratings for ANNX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Annexon and its competitors with MarketBeat's FREE daily newsletter. 07/30/2025$2.38$2.59+8.82%$2.74$2.371.57 million shs$284.15 million07/29/2025$2.49$2.38-4.42%$2.53$2.37630,840 shs$261.12 million07/28/2025$2.51$2.49-0.80%$2.61$2.49668,582 shs$273.18 million07/25/2025$2.55$2.51-1.57%$2.58$2.46764,532 shs$275.37 million07/24/2025$2.48$2.55+2.82%$2.68$2.49956,476 shs$279.76 million07/23/2025$2.37$2.48+4.64%$2.52$2.341.87 million shs$272.09 million07/22/2025$2.47$2.37-4.05%$2.47$2.333.08 million shs$260.01 million07/21/2025$2.32$2.47+6.47%$2.53$2.311.47 million shs$270.98 million07/18/2025$2.34$2.32-0.85%$2.41$2.211.38 million shs$254.53 million07/17/2025$2.40$2.34-2.50%$2.44$2.311.75 million shs$256.72 million07/16/2025$2.50$2.40-4.00%$2.54$2.332.09 million shs$263.31 million07/15/2025$2.61$2.50-4.21%$2.65$2.48677,516 shs$274.28 million07/14/2025$2.58$2.61+1.16%$2.74$2.491.37 million shs$286.34 million Related Companies AVDL Stock Chart PAHC Stock Chart PHVS Stock Chart ARDX Stock Chart GPCR Stock Chart AMPH Stock Chart VERV Stock Chart SYRE Stock Chart AKBA Stock Chart RCUS Stock Chart Receive ANNX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Annexon and its competitors with MarketBeat's FREE daily newsletter. 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