This company has been marked as potentially delisted and may not be actively trading. NASDAQ:RTTR Ritter Pharmaceuticals (RTTR) Stock Price, News & Analysis Add Compare Share Share Stock Analysis Stock AnalysisCompetitorsTrendsBuy This Stock About Ritter Pharmaceuticals Stock (NASDAQ:RTTR) 30 days 90 days 365 days Advanced Chart Get Ritter Pharmaceuticals alerts:Sign Up Key Stats Today's Range$3.65▼$3.8250-Day Range$0.45▼$4.0952-Week Range$0.15▼$1.27Volume5,494 shsAverage Volume14.23 million shsMarket Capitalization$168.46 millionP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company OverviewRitter Pharmaceuticals, Inc. develops and sells novel therapeutic products that modulate the human gut microbiome to treat gastrointestinal diseases. Its lead product candidate is RP-G28, a novel microbiome modulator, which has completed Phase 2b clinical trial for the reduction of symptoms associated with lactose intolerance. The company's product, RP-G28 is designed to stimulate the growth of lactose-metabolizing bacteria in the colon, thereby adapting the gut microbiome to assist in digesting the lactose that reaches the large intestine. The company was formerly known as Ritter Natural Sciences, LLC and changed its name to Ritter Pharmaceuticals, Inc. in September 2008. Ritter Pharmaceuticals, Inc. was founded in 2004 and is headquartered in Los Angeles, California.Read More… Receive RTTR Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Ritter Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. Email Address RTTR Stock News HeadlinesFBI raids NY home of ex-UN weapons inspector Scott RitterAugust 9, 2024 | nypost.comDr. John D. RitterJanuary 24, 2024 | health.usnews.com3..2..1.. AI 2.0 ignition (don’t sleep on this)I just put together an urgent new presentation that you need to see right away. In short: I believe we are mere days away from a critical announcement from a key tech leader… One that will officially ignite “AI 2.0” – and potentially send a whole new class of stocks soaring. May 28, 2025 | Timothy Sykes (Ad)Kristen RitterSeptember 15, 2023 | health.usnews.comDr. Harold K. RitterJuly 8, 2023 | health.usnews.comDenver Business Journal welcomes new tech reporterJuly 1, 2023 | bizjournals.comJason Ritter and Drew Barrymore's raw conversation on her show may matter more than you thinkApril 10, 2023 | usatoday.comRitter Pharmaceuticals Changing the Game With Lactose Intolerance TreatmentMarch 29, 2023 | thestreet.comSee More Headlines RTTR Stock Analysis - Frequently Asked Questions How were Ritter Pharmaceuticals' earnings last quarter? Ritter Pharmaceuticals Inc (NASDAQ:RTTR) announced its quarterly earnings results on Friday, May, 1st. The biotechnology company reported ($0.05) earnings per share (EPS) for the quarter, missing analysts' consensus estimates of ($0.04) by $0.01. When did Ritter Pharmaceuticals' stock split? Ritter Pharmaceuticals shares reverse split on the morning of Friday, March 23rd 2018. The 1-10 reverse split was announced on Thursday, March 22nd 2018. The number of shares owned by shareholders was adjusted after the market closes on Thursday, March 22nd 2018. An investor that had 100 shares of stock prior to the reverse split would have 10 shares after the split. When did Ritter Pharmaceuticals IPO? Ritter Pharmaceuticals (RTTR) raised $20 million in an initial public offering on Wednesday, June 24th 2015. The company issued 4,000,000 shares at a price of $5.00 per share. Aegis Capital Corp and Chardan Capital Markets acted as the underwriters for the IPO and Barrington Research was co-manager. What other stocks do shareholders of Ritter Pharmaceuticals own? Based on aggregate information from My MarketBeat watchlists, some other companies that Ritter Pharmaceuticals investors own include Endologix (ELGX), Chipotle Mexican Grill (CMG), Aegean Marine Petroleum Network (ANW), APA (APA), Charles Schwab (SCHW), Genocea Biosciences (GNCA) and Hudson Technologies (HDSN). Company Calendar Last Earnings5/01/2020Today5/28/2025Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry Pharmaceutical Preparations Sub-IndustryN/A Current SymbolNASDAQ:RTTR CIK1460702 Webwww.ritterpharmaceuticals.com Phone310-203-1000FaxN/AEmployees7Year FoundedN/AProfitability EPS (Most Recent Fiscal Year)N/A Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$10.13 million Net MarginsN/A Pretax MarginN/A Return on EquityN/A Return on Assets-162.05% Debt Debt-to-Equity RatioN/A Current Ratio3.67 Quick Ratio3.67 Sales & Book Value Annual SalesN/A Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book Value$0.10 per share Price / Book36.50Miscellaneous Outstanding Shares46,153,000Free FloatN/AMarket Cap$168.46 million OptionableNot Optionable Beta-0.43 7 Stocks That Could Be Bigger Than Tesla, Nvidia, and GoogleLooking for the next FAANG stock before everyone has heard about it? Enter your email address to see which stocks MarketBeat analysts think might become the next trillion dollar tech company.Get This Free Report This page (NASDAQ:RTTR) was last updated on 5/28/2025 by MarketBeat.com Staff From Our PartnersJuly 2025 Rule Change to Impact Retirement InvestorsThere's a massive change from a new rule going into effect this July. And it's one the Big Banks are alread...Premier Gold Co | SponsoredElon’s 2025 Silver Crisis (What It Means for You)Elon Musk is back in the spotlight—this time for fueling a global scramble for silver. 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Here’s why I’m excited.So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...Timothy Sykes | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added five stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Ritter Pharmaceuticals Inc Please log in to your account or sign up in order to add this asset to your watchlist. Share Ritter Pharmaceuticals With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. 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