NASDAQ:PTIXW Protagenic Therapeutics (PTIXW) Stock Price, News & Analysis $0.04 +0.01 (+25.22%) As of 09/19/2025 01:53 PM Eastern Add Compare Share Share Stock Analysis Stock AnalysisChartCompetitorsSEC FilingsTrendsBuy This Stock About Protagenic Therapeutics Stock (NASDAQ:PTIXW) 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 PTIXW alerts:Sign Up Key Stats Today's Range$0.03▼$0.0450-Day Range$0.03▼$0.1452-Week Range$0.00▼$0.49Volume6,779 shsAverage Volume55,956 shsMarket CapitalizationN/AP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company Overview Protagenic Therapeutics, Inc., a biopharmaceutical company, engages in the discovery and development of therapeutics to treat stress-related neuropsychiatric and mood disorders. The company's lead compound comprises PT00114, a synthetic form of teneurin carboxy-terminal associated peptide, an endogenous brain signaling peptide that can dampen overactive stress responses. Protagenic Therapeutics, Inc. is headquartered in New York, New York. Read More Receive PTIXW Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Protagenic Therapeutics 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. PTIXW Stock News HeadlinesProtagenic Therapeutics Delays 10-Q Filing Amid RestructuringAugust 14, 2025 | tipranks.comProtagenic Therapeutics Appoints Timothy Wright to BoardJuly 24, 2025 | tipranks.comSee More Headlines PTIXW Stock Analysis - Frequently Asked Questions How have PTIXW shares performed this year? Protagenic Therapeutics' stock was trading at $0.0045 at the beginning of 2025. Since then, PTIXW stock has increased by 848.9% and is now trading at $0.0427. How do I buy shares of Protagenic Therapeutics? Shares of PTIXW 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. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry Biotechnology Sub-IndustryPharmaceutical Products Current SymbolNASDAQ:PTIXW CIK1022899 WebN/A Phone212-994-8200FaxN/AEmployees2Year FoundedN/AProfitability EPS (Trailing Twelve Months)N/A Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet IncomeN/A Net MarginsN/A Pretax MarginN/A Return on EquityN/A Return on AssetsN/A Debt Debt-to-Equity RatioN/A Current RatioN/A Quick RatioN/A Sales & Book Value Annual SalesN/A Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book ValueN/A Price / BookN/AMiscellaneous Outstanding SharesN/AFree FloatN/AMarket CapN/A OptionableNot Optionable BetaN/A Ten Starter Stocks For Beginners to Buy NowJust getting into the stock market? 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