NASDAQ:SLS SELLAS Life Sciences Group (SLS) Stock Price, News & Analysis $11.55 -1.94 (-14.38%) Closing price 09/11/2026 04:00 PM EasternExtended Trading$11.54 -0.02 (-0.13%) As of 09/11/2026 07:59 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsInsider TradesNews and TrendsOwnershipSEC FilingsShort Interest About SELLAS Life Sciences Group Stock (NASDAQ:SLS) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get SLS alerts:Sign Up Key Stats Today's Range$11.38▼$13.7450-Day Range$10.01▼$15.4652-Week Range$1.39▼$15.88Volume14.59 million shsAverage Volume6.84 million shsMarket Capitalization$2.33 billionP/E RatioN/ADividend YieldN/APrice Target$10.00Consensus RatingHold Company Overview SELLAS Life Sciences Group, Inc. is a clinical-stage biopharmaceutical company focused on developing novel therapies for cancer. The company’s research programs are aimed at treating hematologic malignancies and solid tumors through immunotherapy and targeted drug development. SELLAS’s lead immunotherapy candidate is galinpepimut-S, or GPS, an investigational peptide vaccine designed to stimulate an immune response against Wilms’ tumor 1 (WT1), a protein associated with several cancers. The company has been advancing GPS in clinical studies, including research in acute myeloid leukemia and other malignancies. The company is also developing SLS009, an investigational, highly selective cyclin-dependent kinase 9 (CDK9) inhibitor being evaluated for potential use in blood cancers and solid tumors. SELLAS conducts clinical development activities through studies involving patients in the United States and other locations, as applicable to its individual programs. SELLAS is led by Angelos M. Stergiou, M.D., Sc.D., who serves as president and chief executive officer. The company is headquartered in New York and trades on the Nasdaq Capital Market under the symbol SLS.AI Generated. May Contain Errors. Read More SELLAS Life Sciences Group Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks10th Percentile Overall ScoreSLS MarketRank™: SELLAS Life Sciences Group scored higher than 10% of companies evaluated by MarketBeat, and ranked 883rd out of 904 stocks in the healthcare sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion1.6 / 5Analyst RatingHold Consensus RatingSELLAS Life Sciences Group has received a consensus rating of Hold. The company's average rating score is 2.33, and is based on no strong buy ratings, 2 buy ratings, no hold ratings, and 1 sell rating.Downside RiskSELLAS Life Sciences Group has a consensus price target of $10.00, representing about 13.4% downside from its current price of $11.55.Amount of Analyst CoverageSELLAS Life Sciences Group has only been the subject of 2 research reports in the past 90 days.Read more about SELLAS Life Sciences Group's stock forecast and price target. Earnings and Valuation0.0 / 5Proj. Earnings GrowthN/A Price to Earnings Ratio vs. the MarketThe P/E ratio of SELLAS Life Sciences Group is -55.00, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Earnings Ratio vs. SectorThe P/E ratio of SELLAS Life Sciences Group is -55.00, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Book Value per Share RatioSELLAS Life Sciences Group has a P/B Ratio of 25.11. P/B Ratios above 3 indicate that a company could be overvalued with respect to its assets and liabilities.Read more about SELLAS Life Sciences Group's valuation and earnings. Short Interest1.0 / 5Short Interest LevelBearish Percentage of Shares Shorted29.06% of the float of SELLAS Life Sciences Group has been sold short.Short Interest Ratio / Days to CoverSELLAS Life Sciences Group has a short interest ratio ("days to cover") of 6.88.Change versus previous monthShort interest in SELLAS Life Sciences Group has recently increased by 2.76%, indicating that investor sentiment is decreasing. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldSELLAS Life Sciences Group does not currently pay a dividend.Dividend GrowthSELLAS Life Sciences Group does not have a long track record of dividend growth. News and Social Media3.0 / 5News Sentiment0.80 News SentimentSELLAS Life Sciences Group has a news sentiment score of 0.80. This score is calculated as an average of sentiment of articles about the company over the last seven days and ranges from 2 (good news) to -2 (bad news). This news sentiment score is similar to the average news sentiment of Healthcare companies.News Coverage This WeekMarketBeat has tracked 5 news articles for SELLAS Life Sciences Group this week, compared to 4 articles on an average week.Search InterestOnly 26 people have searched for SLS on MarketBeat in the last 30 days. This is a decrease of -7% compared to the previous 30 days.MarketBeat Follows19 people have added SELLAS Life Sciences Group to their MarketBeat watchlist in the last 30 days. This is an increase of 6% compared to the previous 30 days. Company Ownership0.3 / 5Insider TradingN/A Insider Buying vs. Insider SellingIn the past three months, SELLAS Life Sciences Group insiders have not sold or bought any company stock.Percentage Held by Insiders1.30% of the stock of SELLAS Life Sciences Group is held by insiders.Percentage Held by Institutions17.38% of the stock of SELLAS Life Sciences Group is held by institutions.Read more about SELLAS Life Sciences Group's insider trading history. Receive SLS Stock News and Ratings via Email Sign-up to receive the latest news and ratings for SELLAS Life Sciences Group and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. 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SLS Stock News HeadlinesINVESTOR ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of SELLAS Life Sciences Group, Inc. - SLSSeptember 10 at 10:00 AM | prnewswire.comINVESTOR ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of SELLAS Life Sciences Group, Inc. - SLSSeptember 8, 2026 | globenewswire.comIran War Shock: What I Was Told In That Private MeetingYou’re Being LIED To About The Iran War Forget EVERYTHING you’ve heard about the Iran war. Especially the reasons why we’re bombing the country.September 13 at 1:00 AM | Banyan Hill Publishing (Ad)SELLAS Life Sciences Group, Inc. (SLS)September 4, 2026 | finance.yahoo.comINVESTOR ALERT: Pomerantz Law Firm Investigates Claims On Behalf of Investors of SELLAS Life Sciences Group, Inc. - SLSSeptember 3, 2026 | prnewswire.comSELLAS Life Sciences Group (SLS) Lands 3 AACR Abstracts For SLS009 Pancreatic Cancer DataSeptember 3, 2026 | finance.yahoo.comMost and least shorted mid- to mega-cap healthcare stocks at the end of AugustSeptember 2, 2026 | seekingalpha.comSellas gears up to present preclinical SLS009 data for pancreatic cancer at major oncology conferenceSeptember 2, 2026 | msn.comSee More Headlines SLS Stock Analysis - Frequently Asked Questions How have SLS shares performed this year? SELLAS Life Sciences Group's stock was trading at $3.77 on January 1st, 2026. Since then, SLS shares have increased by 206.4% and is now trading at $11.55. How were SELLAS Life Sciences Group's earnings last quarter? SELLAS Life Sciences Group, Inc. (NASDAQ:SLS) issued its earnings results on Tuesday, August, 11th. The company reported ($0.05) earnings per share (EPS) for the quarter, missing the consensus estimate of ($0.05) by $0.01. When did SELLAS Life Sciences Group's stock split? SELLAS Life Sciences Group's stock reverse split before market open on Friday, November 8th 2019.The 1-50 reverse split was announced on Wednesday, November 6th 2019. The number of shares owned by shareholders was adjusted after the closing bell on Thursday, November 7th 2019. An investor that had 100 shares of stock prior to the reverse split would have 2 shares after the split. Who are SELLAS Life Sciences Group's major shareholders? Top institutional shareholders of SELLAS Life Sciences Group include California State Teachers Retirement System (1.48%), Dagco Inc. (0.63%), Wellington Management Group LLP (0.30%) and Bank of New York Mellon Corp (0.27%). Insiders that own company stock include Katherine Bach Kalin, Jane Wasman and Nostrand Robert L Van. View institutional ownership trends. How do I buy shares of SELLAS Life Sciences Group? Shares of SLS 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. What other stocks do shareholders of SELLAS Life Sciences Group own? Based on aggregate information from My MarketBeat watchlists, some other companies that SELLAS Life Sciences Group investors own include Amgen (AMGN), Generex Biotechnology (GNBT), Salesforce (CRM), Bank of America (BAC), Bristol Myers Squibb (BMY) and AbbVie (ABBV). Company Calendar Last Earnings8/11/2026Today9/13/2026Next Earnings (Estimated)11/11/2026Fiscal Year End12/31/2026Get Stock Alerts Health Indicator TradeSmith's Health IndicatorA long-term volatility-based measure designed for securities held 12 months or longer.Green: Strong and healthy uptrend with normal pullbacks.Yellow: Significant pullback but still within expected volatility.Red: Dropped beyond expected volatility; considered unhealthy. Green Zone (20m+) 1-Year History Sep 25 Dec 25 Mar 26 Jun 26 Sep 26 SLS's financial health is in the Green zone, according to TradeSmith. SLS has been in this zone for over 20 months. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorHealthcare Industry Biotechnology Sub-IndustryBiotechnology Current SymbolNASDAQ:SLS CIK1390478 Webwww.sellaslifesciences.com Phone(646) 200-5278Fax441-400-2875Employees13Year Founded2006Price Target and Rating Average Price Target for SELLAS Life Sciences Group$10.00 High Price Target$10.00 Low Price Target$10.00 Potential Upside/Downside-13.4%Consensus RatingHold Rating Score (0-4)2.33 Research Coverage3 Analysts Profitability EPS (Trailing Twelve Months)($0.21) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$26.86 million Net MarginsN/A Pretax MarginN/A Return on Equity-35.91% Return on Assets-33.34% Debt Debt-to-Equity RatioN/A Current Ratio18.83 Quick Ratio18.83 Sales & Book Value Annual SalesN/A Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book Value$0.46 per share Price / Book25.11Miscellaneous Outstanding Shares201,950,000Free Float199,321,000Market Cap$2.33 billion OptionableNot Optionable Beta2.52 Social Links 10 Stocks Powering The Next AI Boom The AI boom is creating opportunities across semiconductors, cloud computing, enterprise software, infrastructure, cybersecurity, and automation. 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