This company recently went public with an IPO on Wednesday, August 5th 2026. They issued 17,000,000 shares at $15.00 - $17.00 per share. We will continue to update data for ATTO as it becomes available. NASDAQ:ATTO Attovia Therapeutics (ATTO) Stock Price, News & Analysis $20.17 -0.21 (-1.03%) Closing price 08/7/2026 04:00 PM EasternExtended Trading$20.22 +0.05 (+0.25%) As of 08/7/2026 07:56 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 Massive. Learn more. Add Share Share Stock Analysis Stock AnalysisChartInsider TradesOwnershipSEC FilingsTrendsBuy This Stock About Attovia Therapeutics Stock (NASDAQ:ATTO) 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 Attovia Therapeutics alerts:Sign Up Key Stats Today's Range$18.64▼$20.9450-Day Range N/A52-Week Range$18.64▼$22.79Volume237,906 shsAverage Volume325,553 shsMarket CapitalizationN/AP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company Overview Attovia Therapeutics, Inc. (NASDAQ: ATTO) is a clinical-stage biopharmaceutical company developing antibody-based medicines for inflammatory and immune-mediated diseases. The company’s research is focused on creating differentiated biologic therapies intended to address significant unmet medical needs. Attovia uses proprietary antibody-engineering technologies to discover and develop therapeutic candidates, including multispecific antibodies designed to modulate disease-related biological pathways. Its pipeline is centered on potential treatments for conditions involving dysregulated immune responses, although many of its programs remain in development and are subject to clinical and regulatory evaluation. As a development-stage biotechnology company, Attovia’s activities primarily involve research, preclinical studies, clinical trials and the advancement of its proprietary therapeutic pipeline. Publicly available information provides limited detail about its commercial operations, geographic reach and leadership beyond its focus on developing innovative treatments for inflammatory diseases.AI Generated. May Contain Errors. Read More Receive ATTO Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Attovia Therapeutics 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. ATTO Stock News HeadlinesAttovia Therapeutics (NASDAQ:ATTO) Major Shareholder Buys 400,000 SharesAugust 8 at 6:36 AM | insidertrades.comLife Sciences Xi L.P. Frazier Acquires 588,235 Shares of Attovia Therapeutics (NASDAQ:ATTO) StockAugust 7 at 6:36 AM | insidertrades.comSee More Headlines ATTO Stock Analysis - Frequently Asked Questions How have ATTO shares performed this year? Attovia Therapeutics' stock was trading at $21.90 on August 5, 2026. Since then, ATTO shares have decreased by 7.9% and is now trading at $20.17. When did Attovia Therapeutics IPO? Attovia Therapeutics (ATTO) raised $272 million in an initial public offering (IPO) on Wednesday, August 5th 2026. The company issued 17,000,000 shares at a price of $15.00-$17.00 per share. When does the company's quiet period expire? Attovia Therapeutics's quiet period expires on Monday, September 14th. Attovia Therapeutics had issued 17,000,000 shares in its initial public offering on August 5th. The total size of the offering was $289,000,000 based on an initial share price of $17.00. During the company's quiet period, insiders and any underwriters involved in the IPO are restricted from issuing any earnings forecasts or research reports for the company because of SEC regulations. Following the end of the company's quiet period, it's expected that the brokerages that served as underwriters on the stock will initiate research coverage on the company. Who are Attovia Therapeutics' major shareholders? Attovia Therapeutics' top institutional shareholders include BlackRock Inc.. Insiders that own company stock include Life Sciences Xi LP Frazier and Redmile Group, Llc. View institutional ownership trends. How do I buy shares of Attovia Therapeutics? Shares of ATTO 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 SectorN/A Industry N/A Sub-IndustryN/A Current SymbolNASDAQ:ATTO CIK2058707 WebN/A Phone(510) 399-5001FaxN/AEmployees44Year 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 OptionableN/A BetaN/A 10 Best Stocks to Own - Summer 2026Enter your email address and we’ll send you MarketBeat’s list of ten stocks set to soar in Summer 2026, despite the threat of tariffs and what's happening in Iran. These ten stocks are incredibly resilient and are likely to thrive in any economic environment. 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