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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:AMPE NASDAQ:CALA NASDAQ:PXMD NASDAQ:ZSAN 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$0.00-96.8%$0.00$0.00▼$0.13$3K5.09722 shs168 shsCALACalithera Biosciences$0.00$0.00$0.00▼$0.05$1K-2.779,638 shs7,357 shsPXMDPaxMedica$0.00$0.00$0.00▼$0.00$2K-0.9911,821 shs1,061 shsZSANZosano Pharma$0.00$3.90$0.46▼$37.45$1K3.3425,375 shs5,685 shsThe Best High-Yield Dividend Stocks for 2025Discover the 10 Best High-Yield Dividend Stocks for 2025 and secure reliable income in uncertain markets. Download the report now to identify top dividend payers and avoid common yield traps.Get This Free ReportCompare Price PerformanceCompany1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year PerformanceAMPEAmpio Pharmaceuticals0.00%0.00%-6.90%-10.00%+22.73%CALACalithera Biosciences0.00%0.00%+100.00%-90.00%-98.00%PXMDPaxMedica0.00%0.00%+100.00%+100.00%-99.91%ZSANZosano Pharma0.00%0.00%0.00%0.00%0.00%Compare MarketRank™CompanyOverall ScoreAnalyst's OpinionShort Interest ScoreDividend StrengthESG ScoreNews and Social Media SentimentCompany OwnershipEarnings & ValuationAMPEAmpio PharmaceuticalsN/AN/AN/AN/AN/AN/AN/AN/ACALACalithera Biosciences0.8118 of 5 stars0.02.00.04.50.60.00.0PXMDPaxMedicaN/AN/AN/AN/AN/AN/AN/AN/AZSANZosano PharmaN/AN/AN/AN/AN/AN/AN/AN/ACompare Analyst ForecastsCompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current PriceAMPEAmpio Pharmaceuticals 0.00N/AN/AN/ACALACalithera Biosciences 0.00N/AN/AN/APXMDPaxMedica 0.00N/AN/AN/AZSANZosano Pharma 0.00N/AN/AN/ACompare Sales & Book ValueCompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/BookAMPEAmpio PharmaceuticalsN/AN/AN/AN/A$4.04 per shareN/ACALACalithera BiosciencesN/AN/AN/AN/AN/AN/APXMDPaxMedicaN/AN/AN/AN/A$0.46 per shareN/AZSANZosano Pharma$790K0.00N/AN/A$9.74 per share0.00Compare 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/ACALACalithera Biosciences-$39.65MN/A0.00∞N/AN/AN/AN/AN/APXMDPaxMedica-$18.29MN/A0.00∞N/AN/A-3,167.89%-560.35%N/AZSANZosano Pharma-$29.92M-$14.50N/A∞N/A-8,375.11%-177.06%-119.14%N/ACompare DividendsCompanyAnnual PayoutDividend Yield3-Year Dividend GrowthPayout RatioYears of Consecutive GrowthAMPEAmpio PharmaceuticalsN/AN/AN/AN/AN/ACALACalithera BiosciencesN/AN/AN/AN/AN/APXMDPaxMedicaN/AN/AN/AN/AN/AZSANZosano PharmaN/AN/AN/AN/AN/ACompare DebtCompanyDebt-to-Equity RatioCurrent RatioQuick RatioAMPEAmpio PharmaceuticalsN/AN/AN/ACALACalithera BiosciencesN/AN/AN/APXMDPaxMedicaN/A0.380.38ZSANZosano PharmaN/A1.611.61Compare OwnershipInstitutional OwnershipCompanyInstitutional OwnershipAMPEAmpio Pharmaceuticals5.73%CALACalithera BiosciencesN/APXMDPaxMedica4.90%ZSANZosano PharmaN/AInsider OwnershipCompanyInsider OwnershipAMPEAmpio Pharmaceuticals3.30%CALACalithera Biosciences6.60%PXMDPaxMedica1.00%ZSANZosano Pharma2.40%Compare Miscellaneous StatsCompanyEmployeesShares OutstandingFree FloatOptionableAMPEAmpio Pharmaceuticals201.14 million1.10 millionNo DataCALACalithera Biosciences604.87 million4.55 millionNot OptionablePXMDPaxMedica211.31 million11.20 millionNot OptionableZSANZosano Pharma404.90 million4.78 millionNot OptionableZSAN, AMPE, PXMD, and CALA HeadlinesRecent News About These CompaniesMicroneedles for Drug Delivery Patent Landscape Report and Forecast 2024-2032, Featuring Minnesota Mining and Manufacturing, BD and Co, Zosano Pharma, Raphas, Nano, and Pass TechnologiesMarch 7, 2025 | globenewswire.comNifty PharmaAugust 2, 2024 | economictimes.indiatimes.comThe seven steps to selling in pharmaJuly 31, 2024 | pharmaphorum.comPAktuelle Empfehlungen zur ZOSANOJuly 28, 2024 | finanznachrichten.deHOOK HOOKIPA Pharma Inc.April 12, 2024 | seekingalpha.comNachrichten - Weitere NachrichtenJanuary 9, 2024 | wallstreet-online.deWLISTEN: Supreme Court hears arguments on legality of Purdue Pharma bankruptcy planDecember 6, 2023 | pbs.orgPDer Börsen-Tag: Diese US-Aktie stürzte nachbörslich abAugust 22, 2023 | n-tv.deNEast Bay Business NewsMay 18, 2023 | bizjournals.comMankind Pharma IPO opens on April 25, listing scheduled for May 9April 27, 2023 | moneycontrol.comAstellas PharmaApril 6, 2023 | forbes.comGiiant Pharma Receives Financial Support From the US Crohn’s and Colitis FoundationFebruary 5, 2023 | finance.yahoo.comFTC asks court to hold 'pharma bro' Martin Shkreli in contempt for failing to abide by ordersJanuary 23, 2023 | washingtonexaminer.comWZosano Pharma Corporation (ZSANQ)November 5, 2022 | ca.finance.yahoo.comNow bankrupt, Zosano sells off its drug delivery tech that once enticed Novo Nordisk, Eli LillyOctober 13, 2022 | endpts.comEBankrupt Zosano Sells Its Drug Delivery Tech That Once Partnered With Pharma GiantsOctober 12, 2022 | msn.comBankrupt Zosano Pharma Says Unsecured Creditors Will Recoup 28% of ClaimsAugust 28, 2022 | marketwatch.comEast Bay migraine patch developer Zosano closes sale in bankruptcy court for $1 millionAugust 27, 2022 | bizjournals.comZosano Pharma Corp (ZSANQ)August 24, 2022 | investing.comEast Bay company promised drug-coated microneedle patches. Now it could be sold in bankruptcy court for just $1MJuly 26, 2022 | bizjournals.comNew MarketBeat Followers Over TimeZSAN, AMPE, PXMD, and CALA Company DescriptionsAmpio Pharmaceuticals NYSE:AMPE$0.0027 -0.08 (-96.77%) As of 08/29/2025 12:04 PM 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.Calithera Biosciences NASDAQ:CALA$0.0002 0.00 (0.00%) As of 08/29/2025 01:33 PM EasternCalithera Biosciences, Inc. operates under a plan of liquidation that was approved in January 2023. Previously, the company was engaged in the clinical stage precision oncology biopharmaceutical business. Calithera Biosciences, Inc. was incorporated in 2010 and is headquartered in South San Francisco, California.PaxMedica NASDAQ:PXMD$0.0002 0.00 (0.00%) As of 08/29/2025 12:33 PM EasternPaxMedica, Inc., a clinical stage biopharmaceutical company, focuses on the development of anti-purinergic drug therapies for the treatment of disorders with intractable neurologic symptoms. Its lead product candidate is PAX-101 that is in Phase 3 clinical trials, an intravenous formulation of suramin for the treatment of autism spectrum disorder, myalgic encephalomyelitis/chronic fatigue syndrome, long COVID-19 syndrome, fragile X syndrome, human African trypanosomiasis (HAT), and fragile X-associated tremor/ataxia syndrome. The company is developing PAX-102, an intranasal formulation of suramin for neurologic indications, as well as other new chemical entities that are targeted and selective antagonists of purine receptor subtypes; and PAX-HAT-301 for the treatment of HAT. It has a research collaboration agreement with PolarMar Health for Phase II clinical trial in austism spectrum disorder for emodin, which retains the rights for PolarMar to develop and commercialize any non-prescription supplement form of the product, and for PaxMedica, Inc. to retain exclusive rights to develop and commercialize a highly purified form of emodin. The company was formerly known as Purinix Pharmaceuticals LLC and changed its name to PaxMedica, Inc. in April 2020. PaxMedica, Inc. was incorporated in 2018 and is based in Tarrytown, New York.Zosano Pharma NASDAQ:ZSANZosano Pharma Corporation, a clinical stage biopharmaceutical company, focuses on providing therapeutics and other bioactive molecules to patients suffering from migraine using its transdermal microneedle system. Its lead product candidate is Qtrypta (M207), a proprietary formulation of zolmitriptan used for the acute treatment of migraine. The company was founded in 2006 and is headquartered in Fremont, California. 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