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Stocks to Compare Sections All Sections Selected Performance Chart Price & Volume MarketRank Analyst Ratings Sales & Book Value Profitability & Earnings Dividends Debt Ownership Miscellaneous Headlines About Compare NYSE:AMPENASDAQ:CLVRNASDAQ:EFTRNASDAQ:HSTO On This Page Performance ChartPrice & VolumeMarketRank™Analyst RatingsSales & Book ValueProfitability & EarningsDividendsDebtOwnershipMiscellaneousHeadlinesAbout Comparison Ideas Stock Ideas Comparative Price Performance Over Time1 day7 days30 days90 days365 daysCompare Price & VolumeCompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's VolumeAMPEAmpio Pharmaceuticals$0.00$0.02$0.00▼$0.45$3K4.92609 shs825 shsCLVRClever Leaves$0.00$0.00$0.00▼$3.55$1K3516.091,782 shs88 shsEFTReFFECTOR Therapeutics$0.00$0.00$0.00▼$1.32$1K0.223,265 shs1 shsHSTOHistogen$0.02$0.02$0.05▼$0.55$76K1.1910,369 shsN/AOptions 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 ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAMPEAmpio Pharmaceuticals0.00%0.00%-10.00%+350.00%-98.07%CLVRClever Leaves0.00%0.00%0.00%+100.00%-99.99%EFTReFFECTOR Therapeutics0.00%0.00%-85.00%+50.00%-99.89%HSTOHistogen0.00%+4,325.00%-34.44%-36.79%-94.10%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationAMPEAmpio Pharmaceuticals0.1322 of 5 stars0.03.00.00.00.00.00.6CLVRClever LeavesN/AN/AN/AN/AN/AN/AN/AN/AEFTReFFECTOR TherapeuticsN/AN/AN/AN/AN/AN/AN/AN/AHSTOHistogenN/AN/AN/AN/AN/AN/AN/AN/ACompare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceAMPEAmpio Pharmaceuticals 0.00N/AN/AN/ACLVRClever Leaves 0.00N/AN/AN/AEFTReFFECTOR Therapeutics 0.00N/AN/AN/AHSTOHistogen 0.00N/AN/AN/ACompare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookAMPEAmpio PharmaceuticalsN/AN/AN/AN/A$4.04 per shareN/ACLVRClever Leaves$17.42M0.00N/AN/A$14.02 per share0.00EFTReFFECTOR Therapeutics$3.55M0.00N/AN/A($1.94) per share0.00HSTOHistogen$19K3.98N/AN/A$3.13 per share0.01Compare Profitability & EarningsCompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings DateAMPEAmpio Pharmaceuticals-$8.63M-$11.01N/A∞N/AN/AN/AN/AN/ACLVRClever Leaves-$17.90M-$11.31N/A∞N/AN/AN/AN/AN/AEFTReFFECTOR Therapeutics-$35.81M-$13.08N/A∞N/AN/AN/AN/A7/28/2025 (Estimated)HSTOHistogen-$10.62M-$2.81N/A∞N/AN/AN/AN/AN/ACompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthAMPEAmpio PharmaceuticalsN/AN/AN/AN/AN/ACLVRClever LeavesN/AN/AN/AN/AN/AEFTReFFECTOR TherapeuticsN/AN/AN/AN/AN/AHSTOHistogenN/AN/AN/AN/AN/ACompare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipAMPEAmpio Pharmaceuticals5.73%CLVRClever Leaves6.92%EFTReFFECTOR Therapeutics57.67%HSTOHistogenN/AInsider OwnershipCompanyInsider OwnershipAMPEAmpio Pharmaceuticals3.30%CLVRClever Leaves8.20%EFTReFFECTOR Therapeutics4.70%HSTOHistogen3.30%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableAMPEAmpio Pharmaceuticals201.14 million1.10 millionNo DataCLVRClever Leaves5601.76 million1.61 millionNo DataEFTReFFECTOR Therapeutics104.70 million4.48 millionNo DataHSTOHistogen204.27 millionN/ANot OptionableCLVR, AMPE, HSTO, and EFTR HeadlinesRecent News About These CompaniesHistogen Inc. (HSTO) Stock Price, News, Quote & History - Yahoo FinanceApril 25, 2024 | finance.yahoo.comHistogen Inc: Histogen Files for Voluntary Chapter 11 Protection to Facilitate Wind-Down, Maximize Share OfferingApril 22, 2024 | finanznachrichten.deHistogen Files For Voluntary Chapter 11 Bankruptcy ProtectionApril 18, 2024 | markets.businessinsider.comHistogen files for Chapter 11, seeks liquidationApril 18, 2024 | msn.comHistogen Files for Voluntary Chapter 11 Protection to Facilitate Wind-Down, Maximize Share OfferingApril 18, 2024 | globenewswire.comHistogen Stock (OTC:HSTO) Dividends: History, Yield and DatesFebruary 6, 2024 | benzinga.comHistogen Announces Second Adjournment of Special Meeting of StockholdersDecember 14, 2023 | finance.yahoo.comHistogen Inc: Histogen Announces Adjournment of Special Meeting of StockholdersDecember 6, 2023 | finanznachrichten.deHistogen Announces Adjournment of Special Meeting of StockholdersDecember 5, 2023 | finance.yahoo.comHistogen Inc HSTONovember 1, 2023 | morningstar.comMDays-to-cover ratio for HSTO surges to 4.25 due to rise in short interestOctober 5, 2023 | knoxdaily.comKHSTO short interest fall by -56.24%, reflecting positive sentimentSeptember 21, 2023 | knoxdaily.comKWall Street Set to Open Wednesday Trading Higher as Investors Await Fed Decision on Interest RatesSeptember 21, 2023 | msn.comU.S. stocks lower at close of trade; Dow Jones Industrial Average down 0.31%September 20, 2023 | msn.comHistogen Inc: Histogen Announces Board Approval of Complete Liquidation and DissolutionSeptember 20, 2023 | finanznachrichten.deMagnet attracts $50M series A for efforts with molecular gluesSeptember 20, 2023 | bioworld.comBHistogen Board Approves To Dissolve And Wind Down OperationsSeptember 20, 2023 | markets.businessinsider.comU.S. shares lower at close of trade; Dow Jones Industrial Average down 0.31%September 19, 2023 | msn.comBiotech firm Histogen to wind down after failing to raise capitalSeptember 18, 2023 | msn.comHistogen Announces Board Approval of Complete Liquidation and DissolutionSeptember 18, 2023 | finance.yahoo.comNew MarketBeat Followers Over TimeCLVR, AMPE, HSTO, and EFTR Company DescriptionsAmpio Pharmaceuticals NYSE:AMPE$0.0027 0.00 (0.00%) As of 06/25/2025 09:33 AM EasternAmpio Pharmaceuticals, Inc., a biopharmaceutical company, develops therapies for the treatment of osteoarthritis of the knee (OAK) in the United States. It develops OA-201, a small molecule formulation for the treatment of OAK pain. The company is headquartered in Englewood, Colorado.Clever Leaves NASDAQ:CLVR$0.0004 0.00 (0.00%) As of 06/25/2025Clever Leaves Holdings Inc. operates in the botanical cannabinoid and nutraceutical industries. The company operates through two segments, Cannabinoid and Non-Cannabinoid. The Cannabinoid segment cultivates, extracts, manufactures, commercializes, and distributes cannabinoid products comprising cannabis flowers, cannabidiol isolates, full spectrum and standardized extracts, and dry smokable flowers internationally. The Non-Cannabinoid segment formulates, manufactures, markets, sells, distributes, and commercializes nutraceutical and other natural remedies, wellness products, detoxification products, and nutritional and dietary supplements for mass retailers, specialty and health retailers, and distributors in the United States. It also produces extracted products, including isolates, crude oil extracts, and oral solutions; and tetrahydrocannabinol flowers. The company serves retail distributors, pharmaceutical and cannabis companies, and pharmacies. Clever Leaves Holdings Inc. was founded in 2017 and is based in Tocancipá, Colombia.eFFECTOR Therapeutics NASDAQ:EFTR$0.0003 0.00 (0.00%) As of 06/25/2025eFFECTOR Therapeutics, Inc., a biopharmaceutical company, engages in the development of selective translation regulator inhibitors (STRIs) for the treatment of cancer. The company's lead product candidates comprise Tomivosertib, an oral small-molecule inhibitor of MNK that is in phase 2b clinical trial for the treatment of patients with metastatic non-small cell lung cancer; and Zotatifin, a small molecule inhibitor of eukaryotic initiation factor 4A (eIF4E), which is in Phase 1/2 clinical trial to treat patients with solid tumors, as well as completed Phase 2a open-label expansion cohort in combination with fulvestrant and abemaciclib to treat patients with ER+ breast cancer. The company has a research collaboration and license agreement with Pfizer Inc. to research and develop small molecules that target eIF4E. eFFECTOR Therapeutics, Inc. was incorporated in 2012 and is headquartered in Solana Beach, California.Histogen NASDAQ:HSTO$0.02 0.00 (0.00%) As of 06/25/2025Histogen Inc., a clinical-stage therapeutics company, focuses on developing clinical and preclinical small molecule pan-caspase and caspase selective inhibitors that protect the body's natural process to restore immune function. The company's product candidates include emricasan for the treatment of acute bacterial skin and skin structure infections, as well as other infectious diseases. Its preclinical product candidates include CTS-2090 and CTS-2096, which are selective small molecule inhibitors of caspase-1 designed for the treatment of various inflammatory diseases. Histogen Inc. was founded in 2007 and is based in San Diego, California. On April 18, 2024, Histogen Inc. filed a voluntary petition for reorganization under Chapter 11 in the U.S. Bankruptcy Court for the Southern District of California. 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