BioLargo (BLGO) Stock Chart & Stock Price History $0.28 +0.00 (+0.36%) As of 03/28/2025 03:57 PM Eastern Add Compare Share Share Chart Stock AnalysisChartCompetitorsEarningsFinancialsHeadlinesSEC FilingsTrendsBuy This Stock BioLargo Stock Price Performance 5 Day Performance-3.39%1 Month Performance+6.64%3 Month Performance+41.32%6 Month Performance+17.71%Year-To-Date Performance+48.68%1 Year Performance-20.40% Receive BLGO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for BioLargo and its competitors with MarketBeat's FREE daily newsletter. Email Address BLGO Stock Chart for Saturday, March, 29, 2025 BLGO Chart by TradingViewRemove Ads BioLargo Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization03/28/2025$0.28$0.28+0.36%$0.28$0.28227,138 shs$85.14 million03/27/2025$0.29$0.28-3.60%$0.29$0.2857,110 shs$84.84 million03/26/2025$0.29$0.29-0.10%$0.29$0.2811,654 shs$88.00 million03/25/2025$0.29$0.29-0.03%$0.29$0.2889,731 shs$88.09 million03/24/2025$0.29$0.29+0.83%$0.30$0.28136,198 shs$88.12 million03/21/2025$0.28$0.29+2.58%$0.29$0.27156,567 shs$87.39 million03/20/2025$0.29$0.28-0.81%$0.30$0.28394,170 shs$85.19 million03/19/2025$0.26$0.29+8.49%$0.29$0.26404,004 shs$85.89 million03/18/2025$0.26$0.26+1.04%$0.26$0.25135,454 shs$79.17 million03/17/2025$0.26$0.26-1.18%$0.27$0.25153,522 shs$78.35 million Get the Latest News and Ratings for BLGO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for BioLargo and its competitors with MarketBeat's FREE daily newsletter. 03/14/2025$0.24$0.26+10.08%$0.27$0.24315,226 shs$79.29 million03/13/2025$0.25$0.24-4.21%$0.25$0.24142,452 shs$75.19 million03/12/2025$0.25$0.25-2.12%$0.27$0.24319,199 shs$75.19 million03/11/2025$0.27$0.25-4.71%$0.27$0.25214,748 shs$76.82 million03/10/2025$0.26$0.27+1.36%$0.27$0.25321,740 shs$80.61 million03/07/2025$0.26$0.26-0.08%$0.27$0.26104,938 shs$79.53 million03/06/2025$0.26$0.26+1.58%$0.26$0.25157,204 shs$79.59 million03/05/2025$0.26$0.26$0.26$0.25145,290 shs$78.35 million03/04/2025$0.25$0.26+3.71%$0.26$0.25192,473 shs$78.35 million03/03/2025$0.26$0.25-5.36%$0.26$0.25227,190 shs$75.55 million02/28/2025$0.25$0.26+8.08%$0.26$0.25324,087 shs$79.83 million Related Companies ASPI Stock Chart LXFR Stock Chart SLI Stock Chart ARQ Stock Chart ADUR Stock Chart TSE Stock Chart ZTEK Stock Chart VGAS Stock Chart ORGN Stock Chart AMTX Stock Chart Receive BLGO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for BioLargo and its competitors with MarketBeat's FREE daily newsletter. 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