NASDAQ:BLGO BioLargo (BLGO) Stock Price, News & Analysis $0.08 -0.01 (-5.56%) As of 03:49 PM Eastern Add Compare Share Share Stock Analysis Stock AnalysisChartCompetitorsFinancialsNews and TrendsSEC Filings About BioLargo Stock (NASDAQ:BLGO) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get BioLargo alerts:Sign Up Key Stats Today's Range$0.09▼$0.0950-Day Range$0.08▼$0.1252-Week Range$0.08▼$0.20Volume211,916 shsAverage Volume364,586 shsMarket Capitalization$28.20 millionP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company Overview BioLargo, Inc. (NASDAQ: BLGO) is an environmental technology and life sciences company that develops products and systems designed to address water treatment, odor and air pollution control, and certain medical and consumer health applications. The company’s environmental technologies include advanced water-treatment solutions based on its patented Aqueous Electrostatic Attraction (AOS) technology, which is designed to remove contaminants from water. BioLargo also develops odor-control and air-quality products, including solutions for industrial, municipal, agricultural, and consumer uses. Through its subsidiaries and operating units, BioLargo has pursued applications in areas such as wastewater treatment, per- and polyfluoroalkyl substances (PFAS) remediation, animal and pet odor control, and medical products. The company is headquartered in Westminster, California, and markets its technologies through commercial partnerships, licensing arrangements, and direct sales. Dennis Calvert serves as BioLargo’s president and chief executive officer.AI Generated. May Contain Errors. Read More Receive BLGO Stock News and Ratings via Email Sign-up to receive the latest news and ratings for BioLargo and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By 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. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy. BLGO Stock News HeadlinesBioLargo Highlights Investor Presentation and Disclosure PracticesSeptember 11, 2026 | tipranks.comBioLargo, Inc. (BLGO) Q2 2026 Earnings Call TranscriptSeptember 11, 2026 | seekingalpha.comElon Musk’s Hushed FCC Filing. Dec 8th.Elon Musk quietly filed a document with the federal government tied to artificial intelligence, one of the largest markets in the world. James Altucher, who previously flagged Nvidia in 2008 and Bitcoin in 2013, says the filing could rival Tesla, SpaceX and xAI combined. Few investors know this filing exists, but that is expected to change quickly.September 28 at 1:00 AM | Paradigm Press (Ad)BioLargo, Inc: BioLargo Canada and Tu Nipi Form Indigenous-Led Partnership to Treat Oil Sands Process Water and MoreSeptember 10, 2026 | finanznachrichten.deBioLargo, Inc: BioLargo Equipment Solutions & Technologies' "PFAS Lady" to Teach PFAS 101 at 41st Annual Tri-State SeminarJuly 29, 2026 | finanznachrichten.deBIOLARGO INC by BioLargo, Inc. Corporate Event Calendar | OTC:BLGOJuly 24, 2026 | benzinga.comBIOLARGO INC by BioLargo, Inc. Stock Short Interest Report | OTC:BLGO | BenzingaJuly 22, 2026 | benzinga.comBioLargo, Inc. (BLGO) Shareholder/Analyst Call TranscriptMay 6, 2026 | seekingalpha.comSee More Headlines BLGO Stock Analysis - Frequently Asked Questions How have BLGO shares performed this year? BioLargo's stock was trading at $0.1831 at the start of the year. Since then, BLGO stock has decreased by 53.6% and is now trading at $0.0850. How do I buy shares of BioLargo? Shares of BLGO stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services. What other stocks do shareholders of BioLargo own? Based on aggregate information from My MarketBeat watchlists, some other companies that BioLargo investors own include Hydrofarm Holdings Group (HYFM), Avino Silver & Gold Mines (ASM), Meta Platforms (META), Micron Technology (MU), Petroleo Brasileiro S.A.- Petrobras (PBR), Clean Energy Fuels (CLNE) and FuelCell Energy (FCEL). Company Calendar Today9/28/2026Fiscal Year End12/31/2026Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorMaterials Industry Chemicals Sub-IndustryN/A Current SymbolNASDAQ:BLGO CIK880242 Webwww.biolargo.com Phone(888) 400-2863Fax949-625-9819Employees30Year Founded1989Profitability EPS (Trailing Twelve Months)($0.05) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$3.50 million Net Margins-11.45% Pretax Margin-19.65% Return on Equity-39.90% Return on Assets-22.06% Debt Debt-to-Equity Ratio0.03 Current Ratio2.31 Quick Ratio2.24 Sales & Book Value Annual Sales$12.23 million Price / Sales2.31 Cash FlowN/A Price / Cash FlowN/A Book Value$0.01 per share Price / Book8.50Miscellaneous Outstanding Shares331,721,000Free Float240,168,000Market Cap$28.20 million OptionableNot Optionable Beta-0.13 Social Links 10 Best Stocks to Own: Fall 2026AI spending is reshaping the market, and the opportunity extends far beyond the biggest chipmakers. Discover 10 stocks set to benefit from powerful trends in AI infrastructure, cloud computing, energy, capital returns, and consumer growth this fall.Get This Free Report This page (NASDAQ:BLGO) was last updated on 9/28/2026 by MarketBeat.com Staff. From Our PartnersElon Musk’s Hushed FCC Filing. Dec 8th.Elon Musk quietly filed a document with the federal government tied to artificial intelligence, one of the lar...Paradigm Press | SponsoredHere’s the stock symbol I’ve promisedWhitney Tilson of Stansberry Research has long recommended Berkshire Hathaway as a core retirement holding - b...Stansberry Research | SponsoredTrump's New DollarPorter Stansberry says President Trump has signed an executive order initiating what he calls a full U.S. doll...Porter & Company | SponsoredThe next convergence is hereIn 2006, a flooded mine at Cigar Lake sent uranium prices from the 50 range to 136 in eight months. 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