OTCMKTS:SNNAQ Sienna Biopharmaceuticals (SNNAQ) Stock Price, News & Analysis Add Compare Share Share Stock Analysis Stock AnalysisChartHeadlinesSEC FilingsShort InterestBuy This Stock About Sienna Biopharmaceuticals Stock (OTCMKTS:SNNAQ) 30 days 90 days 365 days Advanced Chart Get SNNAQ alerts:Sign Up Key Stats Today's Range N/A50-Day Range N/A52-Week Range N/AVolumeN/AAverage Volume60 shsMarket Capitalization$2,000.00P/E RatioN/ADividend YieldN/APrice TargetN/AConsensus RatingN/A Company OverviewSienna Biopharmaceuticals, Inc., a clinical-stage biopharmaceutical company, focuses on the development of drugs in various therapeutic areas. It develops therapies in immunology and inflammation that target select pathways in tissues, such as skin. The company's lead product candidates include SNA-120, a first-in-class inhibitor of tropomyosin receptor kinase A, which is in a Phase IIb clinical trial for the treatment of psoriasis and associated pruritus; and SNA-125, a topical dual Janus kinase 3 inhibitor that is in Phase I/II clinical trials for the treatment of atopic dermatitis, psoriasis, and pruritus. It also develops SNA-001, a topical suspension of silver particles, which is in pivotal clinical trials for the treatment of acne, as well as for the reduction of light-pigmented hair, including white, gray, blonde, light brown, and light red hair. The company was formerly known as Sienna Labs, Inc. and changed its name to Sienna Biopharmaceuticals, Inc. in February 2016. Sienna Biopharmaceuticals, Inc. was founded in 2010 and is headquartered in Westlake Village, California. On December 18, 2019, Sienna Biopharmaceuticals, Inc. filed a voluntary petition for reorganization under Chapter 11 was converted to Chapter 7. It had filed for Chapter 11 bankruptcy on September 16, 2019.Read More… Receive SNNAQ Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Sienna Biopharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. Email Address SNNAQ Stock News HeadlinesSienna Announces Change of timing to Third Quarter 2024 Conference CallNovember 4, 2024 | markets.businessinsider.comThe fashion house Kamala Harris and Sienna Miller have in commonSeptember 26, 2024 | msn.comJuly 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 already using to their advantage… It allows them to treat this new asset like actual cash.May 28, 2025 | Premier Gold Co (Ad)Boho's back! Sienna Miller and Kate Middleton set autumn's fashion mood (think: ruffle dresses and leathers)September 26, 2024 | msn.com'I found the perfect Sienna Miller-inspired boho style dress in M&S this weekend'September 25, 2024 | mirror.co.ukSienna Almost Doubles Acreage of Case Lake West Cesium and Spodumene Pegmatite Project in OntarioSeptember 25, 2024 | msn.comHollyoaks spoilers: BIG DAY! Sienna Blake and Ethan have exciting wedding plans!September 24, 2024 | msn.comWhy Princess Beatrice's daughter Sienna didn't receive tributes on 3rd birthday from family membersSeptember 19, 2024 | msn.comSee More Headlines SNNAQ Stock Analysis - Frequently Asked Questions How do I buy shares of Sienna Biopharmaceuticals? Shares of SNNAQ 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. Company Calendar Today5/28/2025Fiscal Year End12/31/2025Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeOTCMKTS SectorMedical Industry Pharmaceutical preparations Sub-IndustryPharmaceutical Products Current SymbolOTCMKTS:SNNAQ CIK1656328 Webwww.siennabio.com Phone(818) 629-2256FaxN/AEmployees60Year FoundedN/AProfitability EPS (Most Recent Fiscal Year)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 Shares22,927,000Free FloatN/AMarket Cap$2,000.00 OptionableNot Optionable Beta1.21 A Beginner's Guide to Investing in CannabisUnlock your free copy of MarketBeat's comprehensive guide to pot stock investing and discover which cannabis companies are poised for growth. Plus, you'll get exclusive access to our daily newsletter with expert stock recommendations from Wall Street's top analysts.Get This Free Report This page (OTCMKTS:SNNAQ) 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 | SponsoredTrump Predicts Dollar DownfallREAD THIS VERY CAREFULLY: If you have $100,000 or more saved for retirement, this may make you VERY angry... ...Augusta Precious Metals | 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. Tesla's relentless p...GoldenCrest Metals | SponsoredBanks aren’t ready for this altcoin—are you?While everyone's distracted by Bitcoin's moves, a stealth revolution is underway. 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