This company has been marked as potentially delisted and may not be actively trading. NASDAQ:ACHN Achillion Pharmaceuticals (ACHN) Stock Price, News & Analysis Add Compare Share Share Stock Analysis Stock AnalysisBuy This Stock About Achillion Pharmaceuticals Stock (NASDAQ:ACHN) 30 days 90 days 365 days Advanced Chart Get ACHN alerts:Sign Up Key Stats Today's Range$6.76▼$6.7650-Day Range$6.76▼$6.7652-Week Range$2.06▼$7.01VolumeN/AAverage Volume8.44 million shsMarket Capitalization$946.72 millionP/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company Overview Achillion Pharmaceuticals, Inc., a clinical-stage biopharmaceutical company, discovers, develops, and commercializes small molecule drug therapies for immune system disorders. Its lead drug candidate is ACH-4471, an inhibitor of factor D that is Phase II clinical trials for patients with paroxysmal nocturnal hemoglobinuria (PNH) and C3 glomerulopathy/immune complex membranoproliferative glomerulonephritis. The company is also developing ACH-5228, a factor D inhibitor that is in Phase I clinical trials; and ACH-5548, a factor D inhibitor, which is in Phase I clinical trials for the treatment of PNH and other complement mediated diseases. It has license agreements with Ora, Inc. for the development and commercialization of ACH-702; and GCA Therapeutics, Ltd for elvucitabine, a nucleoside reverse transcriptase inhibitor for the treatment of hepatitis B infection and human immunodeficiency virus infection. The company was founded in 1998 and is based in New Haven, Connecticut. Read More Receive ACHN Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Achillion Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. Email Address ACHN Stock News HeadlinesKim P. Kamdar's Net WorthMarch 30, 2024 | benzinga.comLexicon Pharmaceuticals (NASDAQ: LXRX)May 20, 2023 | fool.comMusk’s Project Colossus could mint millionairesI predict this single breakthrough could make Elon the world’s first trillionaire — and mint more new millionaires than any tech advance in history. And for a limited time, you have the chance to claim a stake in this project, even though it’s housed inside Elon’s private company, xAI. | Brownstone Research (Ad)Gilead Sciences Buying Achillion Was Twitter Speculation at Its FinestFebruary 19, 2023 | thestreet.comACHN_old Historical DataSeptember 18, 2022 | investing.comWhy Achillion Pharmaceuticals (ACHN) Stock Is Up in After-Hours Trading TodayJanuary 13, 2022 | thestreet.comJim Cramer's 'Mad Money' Recap: Here's Next Week's Game PlanJanuary 12, 2022 | thestreet.comSee More Headlines ACHN Stock Analysis - Frequently Asked Questions How were Achillion Pharmaceuticals' earnings last quarter? Achillion Pharmaceuticals, Inc. (NASDAQ:ACHN) announced its earnings results on Thursday, November, 7th. The biopharmaceutical company reported ($0.14) EPS for the quarter, beating analysts' consensus estimates of ($0.16) by $0.02. What other stocks do shareholders of Achillion Pharmaceuticals own? Based on aggregate information from My MarketBeat watchlists, some other companies that Achillion Pharmaceuticals investors own include Chesapeake Energy (CHKAQ), Skyworks Solutions (SWKS), Madrigal Pharmaceuticals (MDGL), Noble (NEBLQ), Gilead Sciences (GILD), Eiger BioPharmaceuticals (EIGR) and Meta Platforms (META). Company Calendar Last Earnings11/07/2019Today8/05/2025Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry Pharmaceutical Preparations Sub-IndustryBiotechnology Current SymbolNASDAQ:ACHN CIK1070336 Webwww.achillion.com Phone203-624-7000FaxN/AEmployees56Year FoundedN/AProfitability EPS (Trailing Twelve Months)($0.51) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$70.27 million Net MarginsN/A Pretax MarginN/A Return on Equity-30.95% Return on Assets-29.09% Debt Debt-to-Equity Ratio0.01 Current Ratio8.96 Quick Ratio8.96 Sales & Book Value Annual SalesN/A Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book Value$1.92 per share Price / Book3.52Miscellaneous Outstanding Shares140,047,000Free FloatN/AMarket Cap$946.72 million OptionableOptionable Beta1.59 Elon Musk's Next MoveExplore Elon Musk’s boldest ventures yet—from AI and autonomy to space colonization—and find out how investors can ride the next wave of innovation.Get This Free Report This page (NASDAQ:ACHN) was last updated on 8/6/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | Sponsored[Shocking New Report] U.S. Dollar To Crash?The "Death Spiral" Threatening Your Savings But this time, it's not just Dalio ringing the alarm bells…Goldco Precious Metals | SponsoredThe Robotics Revolution has arrived … and one $7 stock could take off as a result.Something big is brewing in Washington. 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