NYSEAMERICAN:SYN Synthetic Biologics (SYN) Stock Price, News & Analysis Add Compare Share Share Stock Analysis Stock AnalysisBuy This Stock About Synthetic Biologics Stock (NYSEAMERICAN:SYN) Get Synthetic Biologics alerts:Sign Up Key Stats Today's Range N/A50-Day Range N/A52-Week Range N/AVolume57,700 shsAverage Volume197,338 shsMarket Capitalization$16.16 millionP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company Overview Synthetic Biologics, Inc. is a clinical‐stage biopharmaceutical company headquartered in Rockville, Maryland, focused on developing novel therapies to prevent and treat serious bacterial infections by preserving the integrity of the gut microbiome. The company’s research platform leverages enzyme and microbiome modulation technologies to counteract the unintended consequences of antibiotic therapies, aiming to reduce the incidence of Clostridioides difficile infection and other antibiotic‐associated complications. The company’s lead product candidate, ribaxamase (SYN-004), is an orally administered beta‐lactamase enzyme designed to degrade certain intravenous beta‐lactam antibiotics in the gastrointestinal tract, thereby protecting the gut from antibiotic‐induced dysbiosis. Ribaxamase has been evaluated in multiple clinical trials, including studies in patients undergoing treatment for serious infections such as pneumonia. Synthetic Biologics has also been advancing additional pipeline programs that explore microbiome‐based approaches for gastrointestinal and metabolic disorders. Synthetic Biologics collaborates with pharmaceutical partners to facilitate global development and commercialization, having secured agreements to support late‐stage studies and future market access. The company is led by President and Chief Executive Officer William H. Martin, under the guidance of an experienced board with deep expertise in biopharmaceutical research and development. Synthetic Biologics is committed to innovating solutions that address critical unmet needs in infectious disease and gastrointestinal health.AI Generated. May Contain Errors. Read More Receive SYN Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Synthetic Biologics and its competitors with MarketBeat's FREE daily newsletter. Submit 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. 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. SYN Stock News HeadlinesActive Pharmaceutical Ingredients (API) Market worth $198.39 billion by 2030 with 6.6% CAGR | MarketsandMarkets™October 15 at 2:53 PM | finance.yahoo.comProtein Expression Market to Hit USD 6.60 Billion by 2032 on Rising Biologics and Personalized Medicine Demand | S&S InsiderSeptember 26, 2025 | finance.yahoo.comThe 7 Warning Signals Flashing Red Right NowA free report revealing the 7 key indicators that have predicted every major economic collapse since 1929. Right now, all seven are flashing red simultaneously for the first time since 2007. These aren't the signals you'll see on CNBC.October 16 at 2:00 AM | American Alternative (Ad)Synthetic Darwin and Star26 Capital Partner to Advance Defense AIJuly 16, 2025 | tmcnet.comThe Hidden Downside Of Synthetic Stone CountertopsJuly 16, 2025 | msn.comMost Major Ice Cream Brands Will Remove Synthetic Dyes by 2028July 15, 2025 | usnews.comSynthetic Dyes Present in 19 Percent of U.S. Food ProductsJuly 4, 2025 | msn.comFlexiteek Expands Synthetic Decking Line with New Tritone FinishJuly 3, 2025 | msn.comSee More Headlines SYN Stock Analysis - Frequently Asked Questions How were Synthetic Biologics' earnings last quarter? Synthetic Biologics, Inc. (NYSEAMERICAN:SYN) announced its earnings results on Tuesday, November, 2nd. The company reported ($0.20) earnings per share (EPS) for the quarter, beating the consensus estimate of ($0.30) by $0.10. When did Synthetic Biologics' stock split? Synthetic Biologics's stock reverse split on Monday, July 25th 2022.The 1-10 reverse split was announced on Monday, July 25th 2022. The number of shares owned by shareholders was adjusted after the closing bell on Monday, July 25th 2022. An investor that had 100 shares of stock prior to the reverse split would have 10 shares after the split. How do I buy shares of Synthetic Biologics? Shares of SYN 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 Synthetic Biologics own? Based on aggregate information from My MarketBeat watchlists, some other companies that Synthetic Biologics investors own include Tonix Pharmaceuticals (TNXP), Advanced Micro Devices (AMD), Synergy Pharmaceuticals (SGYP), Sorrento Therapeutics (SRNE), Vaxart (VXRT), Meta Platforms (META). Company Calendar Last Earnings11/02/2021Today10/16/2025Fiscal Year End12/31/2025Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNYSEAMERICAN SectorMedical Industry Pharmaceutical Preparations Sub-IndustryN/A Current SymbolNYSEAMERICAN:SYN CIK894158 Webwww.syntheticbiologics.com Phone(301) 417-4364Fax301-417-4367Employees16Year FoundedN/AProfitability EPS (Trailing Twelve Months)($1.21) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$14.27 million Net MarginsN/A Pretax MarginN/A Return on Equity-26.14% Return on Assets-22.74% Debt Debt-to-Equity RatioN/A Current Ratio4.14 Quick Ratio4.14 Sales & Book Value Annual SalesN/A Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book Value$4.95 per share Price / BookN/AMiscellaneous Outstanding Shares15,844,000Free Float15,503,000Market Cap$16.16 million OptionableNot Optionable Beta1.38 Options Trading Made Easy - Download NowLearn the basics of options trading and how to use them to boost returns and manage risk with this free report from MarketBeat. Click the link below to get your free copy.Get This Free Report This page (NYSEAMERICAN:SYN) was last updated on 10/16/2025 by MarketBeat.com Staff From Our PartnersMove $1,000 into this stock before Nov 6The End of Tesla? "Hold onto your Tesla stock." That's the message insiders at Tesla have been giving staff...Altimetry | SponsoredURGENT: The Market's 3 Red Flags Are FlashingHere’s the uncomfortable truth: The smartest investors in the world are already preparing for a crash befor...StockEarnings | SponsoredOctober 16 Changes the Microchip Game — and InvestingWhile everyone's chasing the same AI plays, George Gilder is focused on something completely different. He ...Banyan Hill Publishing | SponsoredYour Bank Account Is No Longer SafeWhat If Washington Declared That: YOUR Money ISN'T Actually Yours? 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