NASDAQ:SLS SELLAS Life Sciences Group (SLS) Stock Price, News & Analysis $13.21 -2.00 (-13.15%) As of 08/28/2026 04:00 PM Eastern 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$13.15▼$14.7950-Day Range$8.53▼$15.4652-Week Range$1.39▼$15.88Volume9.77 million shsAverage Volume6.80 million shsMarket Capitalization$2.67 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 the development of active cellular immunotherapies for cancer. Headquartered in Waltham, Massachusetts, SELLAS specializes in targeting the Wilms’ tumor 1 (WT1) antigen, a protein commonly overexpressed in a range of hematologic and solid tumors. Since its founding, the company has built a pipeline around the use of peptide-based vaccines designed to train the patient’s own immune system to recognize and attack WT1-positive cancer cells. The company’s lead product candidate, galinpepimut-S (GPS), is an investigational multi-peptide vaccine directed against WT1. GPS is currently being evaluated in ongoing Phase II/III clinical trials for acute myeloid leukemia (AML), malignant pleural mesothelioma and ovarian cancer. SELLAS is also exploring combination regimens of GPS with immune checkpoint inhibitors to enhance antitumor activity, as well as next-generation cellular approaches intended to broaden its therapeutic platform beyond peptide vaccines. SELLAS conducts its clinical trials across multiple geographies, including North America, Europe and Japan, leveraging collaborations with leading academic research centers and contract research organizations. These partnerships enable the company to advance its programs efficiently through regulatory pathways and to access patient populations in key oncology indications. The management team at SELLAS brings together seasoned executives and scientific leaders with extensive experience in oncology drug development. The company remains committed to translating its WT1-targeted immunotherapy approach into new treatment options for patients with high-unmet-need cancers.AI Generated. May Contain Errors. Read More SELLAS Life Sciences Group Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks6th Percentile Overall ScoreSLS MarketRank™: SELLAS Life Sciences Group scored higher than 6% of companies evaluated by MarketBeat, and ranked 892nd out of 913 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 24.3% downside from its current price of $13.21.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 -62.90, 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 -62.90, 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 19.43. 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 Interest0.0 / 5Short Interest LevelBearish Percentage of Shares Shorted28.28% 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 10.44, which indicates bearish sentiment.Change versus previous monthShort interest in SELLAS Life Sciences Group has recently increased by 2.54%, 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 Media2.8 / 5News Sentiment0.51 News SentimentSELLAS Life Sciences Group has a news sentiment score of 0.51. 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 is a lower news sentiment than the 0.94 average news sentiment score of Healthcare companies.News Coverage This WeekMarketBeat has tracked 7 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 -33% compared to the previous 30 days.MarketBeat Follows22 people have added SELLAS Life Sciences Group to their MarketBeat watchlist in the last 30 days. This is an increase of 69% 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 HeadlinesSellas Traders See Pancreatic Cancer Race After RVMD’s Drug Approval — But Near-Term Focus Remains On SLS’s Leukemia PipelineAugust 26, 2026 | msn.comSLS traders eye this important resistance zone ahead of key AML data readoutAugust 24, 2026 | msn.comBezos… DOOMEDA single FCC filing hints Elon Musk is planning his biggest project yet - bigger than Tesla, SpaceX, and X combined - aimed at the $25 trillion AI industry. James Altucher says the plan could cut Amazon out of the AI race and disrupt Blue Origin, with a key deadline landing September 25.August 30 at 1:00 AM | Paradigm Press (Ad)Investors Buy Large Volume of Call Options on SELLAS Life Sciences Group (NASDAQ:SLS)August 23, 2026 | americanbankingnews.comAnalysts Offer Insights on Healthcare Companies: Decibel Cannabis Company (OtherDBCCF) and SELLAS Life Sciences Group (SLS)August 22, 2026 | theglobeandmail.comSLS stock clocks three straight weeks of gains on cancer vaccine spillover, REGAL trial data anticipationAugust 22, 2026 | msn.comSELLAS Life Sciences Group (SLS) Stock Looks Stretched Despite Key AML Trial ProgressAugust 21, 2026 | finance.yahoo.comSellas CEO Angelos Stergiou Highlights Pediatric Leukemia Study That ‘Directly Supports’ Scientific Basis Of Regal TrialAugust 17, 2026 | finance.yahoo.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 at the beginning of 2026. Since then, SLS stock has increased by 250.4% and is now trading at $13.21. How were SELLAS Life Sciences Group's earnings last quarter? SELLAS Life Sciences Group, Inc. (NASDAQ:SLS) released its quarterly earnings data on Tuesday, August, 11th. The company reported ($0.05) EPS for the quarter, missing analysts' consensus estimates of ($0.05) by $0.01. When did SELLAS Life Sciences Group's stock split? SELLAS Life Sciences Group shares reverse split on the morning of 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 market closes 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 investors 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 Earnings8/11/2026Today8/30/2026Next 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 (19m+) 1-Year History Aug 25 Nov 25 Feb 26 May 26 Aug 26 SLS's financial health is in the Green zone, according to TradeSmith. SLS has been in this zone for over 19 months. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorHealthcare Industry Biotechnology Sub-IndustryBiotechnology Current SymbolNASDAQ:SLS CIK1390478 Webwww.sellaslifesciences.com Phone(646) 200-5278Fax441-400-2875Employees10Year 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-24.3%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$0.68 per share Price / Book19.43Miscellaneous Outstanding Shares201,946,000Free Float199,321,000Market Cap$2.67 billion OptionableNot Optionable Beta2.48 Social Links 7 Energy Stocks to Buy and Hold ForeverWith the proliferation of data centers and electric vehicles, the electric grid will only get more strained. Download this report to learn how energy stocks can play a role in your portfolio as the global demand for energy continues to grow.Get This Free Report This page (NASDAQ:SLS) was last updated on 8/30/2026 by MarketBeat.com Staff. From Our PartnersThe retirement stock I'd buy before Nvidia todayIn 2014, Marc Chaikin pointed readers toward Nvidia. 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