SL
Sellas Life Sciences Group Inc
SLS · NASDAQ · Healthcare / Biotechnology
$11.66+0.37 (+3.28%)
Close Sep 16, 2026 · end-of-day
Market Stats
Previous Close$11.29
Open$11.24
Day Range$11.24 – $11.74
52-Week Range$1.39 – $15.88
Volume5.09M
Market Cap$2.34B
P/E (TTM)0.00
Forward P/E0.00
EPS$-0.22
Dividend Yield0.00%
Beta2.52
50-Day Avg$12.4
200-Day Avg$7.54
Price History
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About
SELLAS Life Sciences Group, Inc., a late-stage clinical biopharmaceutical company, focuses on the development of novel therapeutics for various cancer indications in the United States. The company's lead product candidate is galinpepimut-S (GPS), a peptide immunotherapy directed against the Wilms tumor 1, antigen; and SLS009 (tambiciclib), a selective small molecule cyclin-dependent kinase 9, or CDK9, inhibitor. It has a strategic collaboration with Merck & Co., Inc. to evaluate GPS as it is administered in combination with PD1 blocker pembrolizumab in a Phase 1/2 clinical trial enrolling patients in up to five cancer indications, including hematologic malignancies and solid tumors; GenFleet Therapeutics (Shanghai), Inc. for the development and commercialization of GFH009; and Memorial Sloan Kettering Cancer Center for developing and commercializing MSK's WT1 peptide vaccine technology. SELLAS Life Sciences Group, Inc. is headquartered in New York, New York.
Company Details
- Sector
- Healthcare
- Industry
- Biotechnology
- CEO
- Dr. Angelos M. Stergiou M.D., ScD h.c.
- Employees
- 13
- Headquarters
- 7 Times Square, New York, NY, United States, 10036, USA
- Website
- https://sellaslifesciences.com
Leadership
- Dr. Angelos M. Stergiou M.D., ScD h.c.Founder, President, CEO & Director · b. 1976
- Mr. John Thomas Burns CPASenior VP & CFO · b. 1985
- Dr. Dragan Cicic M.D., MBASenior VP & Chief Development Officer · b. 1963
- Ms. Stacy E. YeungVP, General Counsel & Corporate Secretary
- Mr. Andrew ElnatanSenior VP of Regulatory Affairs, CMC & Quality
Financials
Income Statement
| Line item | 2025-12-31 | 2024-12-31 | 2023-12-31 | 2022-12-31 | 2021-12-31 | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 | 2009-12-31 | 2008-12-31 | 2007-12-31 | 2006-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total Revenue | $0 | $0 | $0 | $1.00M | $7.60M | $1.90K | $0 | $0 | $0 | $0 | $0 | $9.32M | $2.49M | $2.04M | $0 | - | - | - | - | - |
| Cost of Revenue | - | - | $0 | $100.00K | $200.00K | $377.00K | - | $0 | $0 | $3.00K | $355.00K | $1.40M | $520.00K | $49.00K | $163.00K | - | - | - | $11.41M | - |
| Gross Profit | - | - | $0 | $900.00K | $7.40M | $1.90K | - | $0 | $0 | $-3.00K | $-355.00K | $7.92M | $1.97M | $2.04M | $-20.79M | - | - | - | $-11.41M | - |
| Operating Income | $-28.27M | $-31.51M | $-37.87M | $-41.95M | $-25.29M | $-16.98M | $-20.04M | $-31.59M | $-15.71M | $-15.99M | $-34.22M | $-36.61M | $-33.84M | $-21.20M | $-20.79M | $-16.63M | $-17.52M | $-14.55M | $-11.41M | $-2.40M |
| EBITDA | $-26.86M | $632.00K | $529.00K | $-31.49M | $-18.32M | $26.52M | $668.00K | $-33.40M | $-23.04M | $-15.98M | $-37.48M | $-36.61M | $7.63M | $-21.15M | $-11.32M | $-11.82M | $-18.22M | $-14.24M | $-10.93M | $-2.40M |
| Net Income | $-26.86M | $-30.88M | $-37.34M | $-41.30M | $-20.70M | $-16.76M | $-19.29M | $-27.67M | $-23.75M | $-23.55M | $-63.90M | $-36.61M | $-76.68M | $-34.97M | $-11.48M | $-11.99M | $-18.39M | $-14.37M | $-10.99M | $-2.40M |
| R&D | $16.02M | $19.10M | $24.01M | $30.27M | $21.37M | $9.28M | $10.12M | $18.32M | $6.07M | $19.86M | $23.61M | $28.35M | $21.08M | $14.61M | $11.54M | $7.87M | $8.89M | $7.05M | $6.75M | $1.30M |
| Interest Expense | - | - | - | $649.00K | $4.36M | $390.00K | $118.00K | $266.00K | $462.00K | $3.51M | $760.00K | $1.11M | $807.00K | $33.00K | $0 | $5.00K | $5.00K | $0 | $0 | $0 |
Balance Sheet
| Line item | 2025-12-31 | 2024-12-31 | 2023-12-31 | 2022-12-31 | 2021-12-31 | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 | 2009-12-31 | 2008-12-31 | 2007-12-31 | 2006-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total Assets | $78.34M | $19.43M | $6.22M | $20.94M | $26.43M | $46.05M | $16.61M | $16.91M | $33.53M | $65.81M | $82.14M | $80.49M | $87.98M | $54.99M | $30.97M | $7.48M | $6.25M | $10.36M | $12.15M | $2.00K |
| Total Liabilities | $7.47M | $9.97M | $14.20M | $16.09M | $6.08M | $18.09M | $10.52M | $11.67M | $31.46M | $37.15M | $68.63M | $43.43M | $82.09M | $27.23M | $20.86M | $5.05M | $5.51M | $1.39M | $1.32M | - |
| Total Equity | $70.87M | $9.46M | $-7.98M | $4.85M | $20.35M | $27.96M | $6.09M | $5.25M | $2.07M | $28.66M | $13.51M | $37.06M | $5.89M | $27.76M | $10.11M | $2.43M | $741.00K | $8.97M | $10.82M | $2.00K |
| Cash | $71.89M | $13.89M | $2.53M | $17.13M | $21.45M | $35.30M | $7.28M | $5.34M | $2.32M | $18.08M | $29.73M | $23.65M | $47.79M | $32.81M | $11.43M | $6.89M | $5.68M | $9.86M | $1.76M | $2.00K |
| Total Debt | $1.00M | $1.00M | $906.00K | $945.00K | $808.00K | $991.00K | $217.00K | - | $10.99M | $22.06M | $4.74M | $8.40M | $9.92M | $57.00K | $567.00K | $71.00K | $88.00K | $21.00K | - | - |
| Net Debt | $-70.89M | $-12.88M | $-1.62M | $-16.18M | $-20.65M | $-34.31M | $-7.06M | $-5.34M | $8.67M | $-1.69M | $-24.99M | $-15.25M | $-37.86M | $-32.75M | $-10.87M | $-6.82M | $-5.60M | $-9.84M | $-1.76M | $-2.00K |
Cash Flow
| Line item | 2025-12-31 | 2024-12-31 | 2023-12-31 | 2022-12-31 | 2021-12-31 | 2020-12-31 | 2019-12-31 | 2018-12-31 | 2017-12-31 | 2016-12-31 | 2015-12-31 | 2014-12-31 | 2013-12-31 | 2012-12-31 | 2011-12-31 | 2010-12-31 | 2009-12-31 | 2008-12-31 | 2007-12-31 | 2006-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Operating Cash Flow | $-28.39M | $-35.40M | $-31.41M | $-23.81M | $-26.02M | $-10.42M | $-17.64M | $-30.42M | $-10.99M | $-44.91M | $-48.16M | $-42.87M | $-28.91M | $-20.96M | $-14.67M | $-10.26M | $-11.77M | $-9.43M | $-6.05M | $-2.11M |
| Investing Cash Flow | - | - | $-5.50M | $-4.50M | $-4.50M | $-4.50M | $-4.50M | - | $1.81M | $-1.06M | $10.39M | $-5.53M | $-12.04M | $-87.00K | $14.00K | $-106.00K | $-83.00K | $9.60M | $-10.03M | - |
| Financing Cash Flow | $86.30M | $46.76M | $22.32M | $24.08M | $12.07M | $38.44M | $19.57M | $23.12M | $5.53M | $34.32M | $43.84M | $24.26M | $55.92M | $42.42M | $19.20M | $11.57M | $7.68M | $7.92M | $17.83M | $2.11M |
| Capital Expenditure | $0 | $0 | $5.50M | $4.50M | $0 | $0 | $0 | $0 | $0 | $6.00K | $153.00K | $5.53M | $15.85M | $739.00K | $53.00K | $106.00K | $83.00K | $166.00K | $229.00K | $0 |
| Free Cash Flow | $-28.39M | $-35.40M | $-36.91M | $-28.31M | $-26.02M | $-10.42M | $-17.64M | $-30.42M | $-10.99M | $-44.92M | $-48.31M | $-48.40M | $-44.76M | $-20.96M | $-14.72M | $-10.36M | $-11.85M | $-9.60M | $-6.28M | $-2.11M |
| Dividends Paid | - | - | - | - | - | - | $0 | $487.00K | $675.00K | $487.00K | $487.00K | $0 | $0 | $0 | $0 | $464.00K | - | - | - | - |
Earnings
| Report Date | Nov 11, 2026 | Aug 11, 2026 | May 19, 2026 | Mar 19, 2026 | Nov 12, 2025 | Aug 12, 2025 | May 13, 2025 | Mar 26, 2025 | Nov 13, 2024 | Aug 13, 2024 | May 14, 2024 | Mar 28, 2024 | Nov 9, 2023 | Aug 10, 2023 | May 11, 2023 | Mar 16, 2023 | Nov 14, 2022 | Aug 11, 2022 | May 12, 2022 | Mar 31, 2022 | Nov 12, 2021 | Aug 12, 2021 | May 13, 2021 | Mar 23, 2021 | Nov 13, 2020 | Aug 13, 2020 | May 14, 2020 | Mar 13, 2020 | Nov 14, 2019 | Aug 14, 2019 | May 15, 2019 | Mar 22, 2019 | Nov 14, 2018 | Aug 14, 2018 | May 15, 2018 | Mar 15, 2018 | Nov 9, 2017 | Aug 14, 2017 | May 10, 2017 | Mar 15, 2017 | Nov 9, 2016 | Aug 9, 2016 | May 10, 2016 | Mar 10, 2016 | Nov 9, 2015 | Aug 6, 2015 | May 7, 2015 | Mar 5, 2015 | Nov 3, 2014 | Aug 11, 2014 | May 6, 2014 | Mar 17, 2014 | Nov 6, 2013 | Aug 8, 2013 | May 9, 2013 | Mar 12, 2013 | Nov 13, 2012 | Aug 14, 2012 | May 14, 2012 | Mar 28, 2012 | Nov 14, 2011 | Aug 15, 2011 | May 15, 2011 | Nov 15, 2010 | Aug 11, 2010 | May 17, 2010 | Mar 31, 2010 | Nov 16, 2009 | Aug 14, 2009 | May 15, 2009 | Mar 18, 2009 | Nov 14, 2008 | Aug 14, 2008 | May 20, 2008 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EPS Estimate | $-0.05 | $-0.04 | $-0.07 | $-0.06 | $-0.08 | $-0.08 | $-0.11 | $-0.11 | $-0.13 | $-0.17 | $-0.16 | $0.09 | $0.02 | $-0.35 | $-0.29 | $-0.32 | $-0.39 | $-0.37 | $-0.42 | $-0.41 | $-0.34 | $-0.39 | $-0.36 | $-0.28 | $-0.34 | $-0.64 | $-0.68 | $-0.72 | $-1.00 | $-9.00 | $-10.25 | $-11.75 | $-20.25 | $-51.50 | $-46.50 | $-1.06 | $-225.00 | $-270.00 | $-330.00 | $-780.00 | $-1350.00 | $-1875.00 | $-1920.00 | $-1600.00 | $-2057.14 | $-2760.00 | $-2600.00 | $-3150.00 | $-3412.50 | $-2700.00 | $-2062.50 | $-2766.67 | $-3300.00 | $-3112.50 | $-2228.57 | $-3042.86 | $-2550.00 | $-4800.00 | $-3000.00 | $-4500.00 | $-4800.00 | $-2100.00 | - | $-7050.00 | $-7200.00 | $-8100.00 | $-7500.00 | - | $-9000.00 | $-8700.00 | $2400.00 | $-9600.00 | $-6600.00 | $-9600.00 |
| EPS Actual | - | $-0.05 | $-0.05 | $-0.05 | $-0.06 | $-0.07 | $-0.07 | $-0.08 | $-0.10 | $-0.13 | $-0.21 | $-0.25 | $-0.33 | $-0.31 | $-0.47 | $-0.43 | $-0.34 | $-0.42 | $-0.42 | $-0.42 | $-0.45 | $-0.30 | $-0.16 | $-0.28 | $-0.53 | $-0.63 | $-0.63 | $-1.54 | $-0.96 | $-6.19 | $-9.71 | $-8.50 | $-26.50 | $-63.00 | $-83.50 | $-49.50 | $-30.00 | $-330.00 | $-675.00 | $-735.00 | $-900.00 | $1200.00 | $-2700.00 | $-1500.00 | $-3300.00 | $-3000.00 | $-2400.00 | $-1800.00 | $-1500.00 | $-5100.00 | $-600.00 | $-13800.00 | $-3300.00 | $-3300.00 | $-3300.00 | $-1200.00 | $-2700.00 | $-210.00 | $-15600.00 | $1200.00 | $-3900.00 | $-1200.00 | $-5672.40 | $-6900.00 | $-3600.00 | $-7200.00 | $-11400.00 | $-5846.95 | $-11100.00 | $-9000.00 | $-8700.00 | $-7500.00 | $-10200.00 | $-11700.00 |
| Surprise | - | -25.00% | 30.43% | 16.67% | 25.00% | 12.50% | 36.36% | 25.02% | 23.08% | 23.53% | -31.25% | -377.78% | -1750.00% | 11.43% | -62.07% | -34.38% | 12.82% | -13.51% | 0.00% | -2.44% | -32.35% | 23.08% | 55.56% | 0.00% | -55.88% | 1.56% | 7.35% | -113.89% | 4.00% | 31.22% | 5.27% | 27.66% | -30.86% | -22.33% | -79.57% | -4569.81% | 86.67% | -22.22% | -104.55% | 5.77% | 33.33% | 164.00% | -40.63% | 6.25% | -60.42% | -8.70% | 7.69% | 42.86% | 56.04% | -88.89% | 70.91% | -398.79% | 0.00% | -6.02% | -48.08% | 60.56% | -5.88% | 95.63% | -420.00% | 126.67% | 18.75% | 42.86% | - | 2.13% | 50.00% | 11.11% | -52.00% | - | -23.33% | -3.45% | -462.50% | 21.88% | -54.55% | -21.88% |
| Timing | After-hours | After-hours | - | After-hours | After-hours | After-hours | After-hours | Pre-market | After-hours | After-hours | After-hours | After-hours | After-hours | After-hours | After-hours | After-hours | Pre-market | After-hours | After-hours | After-hours | Pre-market | After-hours | After-hours | After-hours | After-hours | After-hours | After-hours | Pre-market | After-hours | After-hours | After-hours | Pre-market | After-hours | After-hours | After-hours | - | After-hours | After-hours | After-hours | After-hours | After-hours | After-hours | After-hours | After-hours | After-hours | After-hours | After-hours | After-hours | After-hours | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Key Statistics & Ratios
- Market Cap
- $2.34B
- Enterprise Value
- $2.18B
- Trailing P/E
- 0.00
- Forward P/E
- 0.00
- Price / Sales
- 26.90
- Price / Book
- 16.87
- EPS
- $-0.22
- Book Value
- $0.682
- Revenue (TTM)
- $0
- Gross Profit (TTM)
- $900.00K
- Profit Margin
- 0.00%
- Operating Margin
- 0.00%
- Return on Equity
- -39.63%
- Return on Assets
- -23.30%
- Shares Outstanding
- 201.95M
- Shares Float
- 201.15M
- Beta
- 2.52
- Dividend Yield
- 0.00%
- Dividend Rate
- $0
- Payout Ratio
- 0.00%
Analyst Ratings
Strong Sell
Based on 3 analystsTarget $32.5
- Strong Buy2
- Buy1
Ownership Breakdown
- Institutions
- 37.00%
- Insiders
- 0.92%
- Retail / Other
- 62.08%
Top Institutional Holders
- BlackRock Inc12.20M6.04%
- State Street Corp8.40M4.16%
- Vanguard Capital Management, LLC7.53M3.73%
- Anson Funds Management LP4.50M2.23%
- Geode Capital Management, LLC3.91M1.94%
- Marshall Wace Asset Management Ltd2.04M1.01%
- JONES FINANCIAL COMPANIES LLLP1.68M0.83%
- Vanguard Portfolio Management, LLC1.46M0.72%
- Morgan Stanley - Brokerage Accounts1.34M0.66%
- Northern Trust Corp1.28M0.63%
- Dagco Inc1.23M0.61%
- Vanguard Fiduciary Trust Co1.20M0.60%
- UBS Group AG745.42K0.37%
Top Fund Holders
- State Street® SPDR® S&P® Biotech ETF9.12M4.51%
- Vanguard MStar Total Stk Mkt Idx Invest5.92M2.93%
- iShares Russell 2000 ETF4.85M2.40%
- Fidelity Small Cap Index2.05M1.01%
- iShares Russell 2000 Growth ETF1.77M0.88%
- Vanguard Russell 2000 ETF1.08M0.54%
- Fidelity Extended Market Index923.21K0.46%
Stock Splits
- Nov 8, 20191:50
- Jan 2, 20181:30
- Nov 14, 20161:20