The balance sheet strengthened dramatically, with total assets rising to $145.4M and cash at $138.4M in 2026Q2, but equity growth to $137.7M is entirely from capital raises, as retained earnings deepened to -$293.0M, masking dilution risk.
SELLAS Life Sciences Group, Inc. (SLS) balance sheet — 20-year assets, liabilities & shareholders' equity history
| Metric | TTM | Dec'25 | Dec'24 | Dec'23 | Dec'22 | Dec'21 | Dec'20 | Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 | Dec'09 | Dec'08 | Dec'07 | Dec'06 |
|---|
| Total Current Assets | 142.5M | 75.21M | 16.33M | 3.17M | 17.76M | 23.04M | 36.92M | 8.24M | 5.84M | 13.09M | 37.5M | 53.62M | 29.02M | 53.45M | 36.12M | 11.81M | 7.04M | 5.8M | 9.93M | 11.74M | 2K |
| Cash & Short-Term Investments | 138.44M | 71.89M | 13.89M | 2.53M | 17.13M | 21.45M | 35.3M | 7.28M | 5.34M | 2.32M | 18.08M | 29.73M | 23.65M | 47.79M | 35.48M | 11.43M | 6.89M | 5.68M | 9.86M | 11.71M | 2K |
| Cash Only | 138.44M | 71.89M | 13.89M | 2.53M | 17.13M | 21.45M | 35.3M | 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 | 2K |
| Short-Term Investments | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.68M | 0 | 0 | 0 | 0 | 9.95M | 0 |
| Accounts Receivable | 0 | 0 | 0 | 0 | 0 | 0 | 1.13M | 308K | 0 | 0 | 0 | 0 | 1.84M | 3.68M | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Days Sales Outstanding | - | - | - | - | - | - | 216.69 | - | - | - | - | - | 72.03 | 540.53 | - | - | - | - | - | - | - |
| Inventory | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -19.51M | 655K | 386K | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Days Inventory Outstanding | - | - | - | - | - | - | - | - | - | - | - | - | 170.4 | 270.94 | - | - | - | - | - | - | - |
| Other Current Assets | 4.06M | 223K | 100K | 100K | 330K | 27K | 130K | 184K | 291K | 10.43M | 85K | 22.49M | 1.64M | 200K | 101K | 101K | 0 | 0 | 0 | 0 | 0 |
| Total Non-Current Assets | 2.88M | 3.13M | 3.31M | 3.05M | 3.19M | 3.38M | 9.12M | 8.37M | 11.08M | 20.44M | 28.31M | 28.52M | 51.46M | 34.52M | 18.86M | 19.16M | 435K | 448K | 430K | 410K | 0 |
| Property, Plant & Equipment | 710K | 963K | 925K | 858K | 874K | 723K | 896K | 217K | 0 | 0 | 199K | 335K | 555K | 665K | 29K | 393K | 419K | 432K | 414K | 344K | 0 |
| Fixed Asset Turnover | 0.00x | - | - | - | 1.14x | 10.51x | 2.12x | - | - | - | - | - | 16.79x | 3.74x | 70.28x | - | - | - | - | - | - |
| Goodwill | 1.91M | 1.91M | 1.91M | 1.91M | 1.91M | 1.91M | 1.91M | 1.91M | 1.91M | 1.91M | 5.9M | 5.9M | 6.07M | 5.9M | 5.9M | 5.9M | 0 | 0 | 0 | 0 | 0 |
| Intangible Assets | 0 | 0 | 0 | 0 | 0 | 0 | 5.7M | 5.7M | 8.5M | 17.6M | 22.12M | 22.12M | 44.75M | 27.84M | 12.86M | 12.86M | 0 | 0 | 0 | 0 | 0 |
| Long-Term Investments | 0 | 0 | 0 | 0 | -184K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 74K | 3K | 0 | 0 | 0 | 0 | 0 |
| Other Non-Current Assets | 253K | 257K | 466K | 275K | 399K | 594K | 614K | 536K | -765K | 925K | 96K | 171K | 87K | 115K | 74K | 13.26M | 16K | 16K | 16K | 66K | 0 |
| Total Assets | 145.38M | 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 | 2K |
| Asset Turnover | 0.00x | - | - | - | 0.05x | 0.29x | 0.04x | - | - | - | - | - | 0.12x | 0.03x | 0.04x | - | - | - | - | - | - |
| Asset Growth % | 974.35% | 303.18% | 212.46% | -70.31% | -20.75% | -42.61% | 177.25% | -1.81% | -49.55% | -49.06% | -19.88% | 2.06% | -8.51% | 60% | 77.56% | 314.23% | 19.58% | -39.65% | -14.72% | 607250% | - |
| Total Current Liabilities | 7.57M | 7.02M | 9.51M | 13.73M | 15.52M | 4.98M | 12.34M | 5.29M | 5.97M | 24.57M | 30.4M | 57.07M | 27.23M | 62.45M | 15.92M | 11.2M | 5.03M | 5.47M | 1.39M | 1.32M | 0 |
| Accounts Payable | 3.09M | 2.95M | 3.5M | 5.64M | 3.36M | 2.14M | 4.66M | 3.9M | 3.75M | 11.69M | 0 | 1.6M | 2.27M | 2.66M | 1.98M | 2.15M | 724K | 625K | 394K | 55K | 0 |
| Days Payables Outstanding | - | - | - | - | 12.25K | 3.91K | - | - | - | - | - | 1.64K | 590.82 | 1.87K | 14.72K | 4.83K | - | - | - | 1.76 | - |
| Short-Term Debt | 580K | 544K | 0 | 0 | 0 | 198K | 0 | 0 | 0 | 8.38M | 1.71M | 4.74M | 3.91M | 2.15M | 6K | 500K | 51K | 52K | 17K | 0 | 0 |
| Deferred Revenue (Current) | 0 | 0 | 0 | 0 | 0 | 0 | 5.6M | 0 | 0 | 4.31M | 5.24M | 30.29M | 15.67M | 8.67M | 935K | 816K | 1.11M | 1.08M | 974K | 0 | 0 |
| Other Current Liabilities | 2.75M | 1.77M | 1.82M | 1.53M | 5.5M | 1.65M | 1.01M | 606K | 8K | 1.49M | 2.01M | 24.2M | 18.85M | 55.63M | 11.18M | 6.31M | 3.46M | 4.09M | 428K | 232K | 0 |
| Current Ratio | 18.83x | 10.72x | 1.72x | 0.23x | 1.14x | 4.63x | 2.99x | 1.56x | 0.98x | 0.53x | 1.23x | 0.94x | 1.07x | 0.86x | 2.27x | 1.05x | 1.40x | 1.06x | 7.16x | 8.86x | - |
| Quick Ratio | 18.83x | 10.72x | 1.72x | 0.23x | 1.14x | 4.63x | 2.99x | 1.56x | 0.98x | 0.53x | 1.23x | 1.28x | 1.04x | 0.85x | 2.27x | 1.05x | 1.40x | 1.06x | 7.16x | 8.86x | - |
| Cash Conversion Cycle | - | - | - | - | - | - | - | - | - | - | - | - | -348.38 | -1.06K | - | - | - | - | - | - | - |
| Total Non-Current Liabilities | 157K | 457K | 457K | 460K | 577K | 1.1M | 5.75M | 5.23M | 5.7M | 6.89M | 6.76M | 11.56M | 16.2M | 19.64M | 11.31M | 9.65M | 20K | 36K | 4K | 0 | 0 |
| Long-Term Debt | 157K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.61M | 5.66M | 0 | 4.49M | 7.74M | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Capital Lease Obligations | 0 | 457K | 457K | 460K | 573K | 610K | 825K | 0 | 0 | 0 | 0 | 0 | 0 | 26K | 51K | 32K | 20K | 36K | 4K | 0 | 0 |
| Deferred Tax Liabilities | 0 | 0 | 0 | 0 | 184K | 152K | 239K | 262K | 357K | 1.67M | 5.66M | 5.42M | 5.05M | 5.05M | 5.05M | 5.05M | 0 | 0 | 0 | 0 | 0 |
| Other Non-Current Liabilities | 0 | 0 | 0 | 0 | 4K | 336K | 4.69M | 4.96M | 5.34M | 2.6M | -5.66M | 6.14M | 6.65M | 6.82M | 6.21M | 4.57M | 0 | 0 | 0 | 0 | 0 |
| Total Liabilities | 7.73M | 7.47M | 9.97M | 14.2M | 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 | 0 |
| Total Debt | 737K | 1M | 1M | 906K | 945K | 808K | 991K | 217K | 0 | 10.99M | 16.4M | 4.74M | 8.4M | 9.92M | 57K | 567K | 71K | 88K | 21K | 0 | 0 |
| Net Debt | -137.71M | -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 | -5.6M | -9.84M | -1.76M | -2K |
| Debt / Equity | 0.01x | 0.01x | 0.11x | - | 0.19x | 0.04x | 0.04x | 0.04x | - | 5.31x | 0.57x | 0.35x | 0.23x | 1.69x | 0.00x | 0.06x | 0.03x | 0.12x | 0.00x | - | - |
| Debt / EBITDA | -0.03x | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Net Debt / EBITDA | 5.36x | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Interest Coverage | - | - | - | - | - | - | - | -145.83x | -108.20x | -49.87x | -4.56x | -49.78x | -31.98x | -92.71x | -1040.73x | - | -2398.60x | -3676.40x | - | - | - |
| Total Equity | 137.66M | 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 | 741K | 8.97M | 10.82M | 2K |
| Equity Growth % | 1549.27% | 648.77% | 218.67% | -264.42% | -76.16% | -27.23% | 358.9% | 16.17% | 153.38% | -92.78% | 112.07% | -63.54% | 529.61% | -78.79% | 174.49% | 316.13% | 227.94% | -91.74% | -17.14% | 541050% | - |
| Book Value per Share | 0.73 | 0.65 | 0.15 | -0.29 | 0.25 | 1.31 | 3.51 | 2.38 | 20.05 | 44.22 | 1512.40 | 675.65 | 1034.85 | 217.56 | 1481.27 | 927.79 | 441.18 | 152.47 | 2175.64 | 2849.66 | 0.53 |
| Total Shareholders' Equity | 137.66M | 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 | 741K | 8.97M | 10.82M | 2K |
| Common Stock | 20K | 15K | 7K | 3K | 2K | 2K | 1K | 1K | 2K | 1K | 15K | 15K | 12K | 10K | 8K | 5K | 2K | 2K | 1K | 1K | 0 |
| Retained Earnings | -293M | -274.99M | -248.13M | -217.24M | -179.9M | -138.6M | -117.9M | -101.15M | -81.86M | -54.19M | -302.93M | -279.38M | -215.48M | -178.88M | -102.2M | -67.23M | -55.74M | -43.75M | -25.36M | -10.99M | 0 |
| Treasury Stock | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -3.85M | -3.85M | -3.85M | -3.85M | -3.85M | -3.85M | -3.85M | 0 | 0 | 0 | 0 |
| Accumulated OCI | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.63M | -657K | -491K | -320K | -158K | 0 | 0 |
| Minority Interest | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Quick answers to the most common questions about buying SLS stock.
As of 2025, SELLAS Life Sciences Group, Inc. (SLS) had total assets of $78.3M including $75.2M in current assets.
SELLAS Life Sciences Group, Inc. (SLS) carries total debt of $1.0M, offset by $71.9M in cash and short-term investments. Comparing total debt to cash helps evaluate the company's debt burden and net leverage.
SELLAS Life Sciences Group, Inc. (SLS) has total shareholders' equity (book value) of $70.9M ($0.65 book value per share). Book value represents the net worth of the company belonging to common stock holders.
SELLAS Life Sciences Group, Inc. (SLS) reported a current ratio of 10.72x. A current ratio above 1.0x indicates that the company has more current assets than current liabilities, suggesting sufficient short-term liquidity.
Key Metrics
Top Statement Risk
Cash burn sustainability
Metrics are mathematically derived from official filings.
Balance Sheet Strengthens Despite Losses
Total assets surged from $24.4M in 2024Q1 to $145.4M in 2026Q2, while liabilities fell from $14.8M to $7.7M, per recent SEC filings, indicating a strengthening balance sheet driven by equity raises.
The balance sheet has expanded dramatically, with equity rising from $9.7M to $137.7M over the period, reflecting substantial capital infusions. This growth appears to be a response to ongoing operational losses, as the company has no revenue and continues to burn cash. The trajectory suggests that while the balance sheet is currently robust, it is dependent on continued external financing to sustain operations.
Minimal Debt Masks Operational Burn
Total debt remains negligible at $737K in 2026Q2, with D/E at 0.01, as reported in financial statements, indicating that leverage is not a concern, but the absence of debt underscores reliance on equity funding.
The company's debt levels are immaterial, with total debt never exceeding $1.0M across the ten quarters. This suggests that SELLAS has not needed to borrow, likely due to its ability to raise equity. However, the lack of debt also means there is no financial cushion from creditors, and the company's survival hinges on its ability to continue accessing capital markets.
Asset Mix Dominated by Cash
Cash and equivalents constitute over 95% of total assets, reaching $138.4M in 2026Q2, based on reported figures, indicating an asset-light model with minimal fixed assets or intangibles.
The asset base is overwhelmingly liquid, with cash representing the vast majority of total assets. Goodwill is stable at $1.9M, and PPE is minimal, reflecting a typical biotech model focused on R&D rather than physical infrastructure. This composition suggests that the company's value lies in its pipeline and intellectual property, not tangible assets, which may pose risks if clinical trials fail.
Equity Growth Driven by Capital Raises
Equity surged from $9.7M in 2024Q1 to $137.7M in 2026Q2, while retained earnings deepened to -$293.0M, as per financial statements, indicating that equity expansion is solely from external financing, not profitability.
The dramatic increase in equity is not a result of retained earnings, which have become increasingly negative, but rather from substantial capital raises. This pattern suggests that shareholders are funding ongoing losses, and the quality of equity is low as it is not generated from operations. Investors should monitor the dilution impact, as each raise likely increases share count, potentially pressuring future returns.
Liquidity Buffer Strengthens but Burn Persists
Current ratio improved from 1.49 in 2024Q1 to 18.83 in 2026Q2, with cash at $138.4M, as reported in financial statements, indicating a strong liquidity position, though quarterly burn remains around $7-9M.
The liquidity position has improved significantly, with the current ratio now exceptionally high, reflecting the large cash balance relative to current liabilities. However, given the consistent quarterly cash burn of approximately $7-9M, the current cash runway appears to be over a year, but this is contingent on maintaining the current burn rate. The buffer provides time for clinical milestones, but the lack of revenue means the clock is ticking.
Equity Dilution Distorts Balance Sheet Strength
While total assets and equity have grown, retained earnings have fallen to -$293.0M, and the company has raised capital repeatedly, as per SEC filings, suggesting that headline balance sheet strength may mask significant shareholder dilution.
The apparent strengthening of the balance sheet is largely a function of equity raises, which dilute existing shareholders. The cumulative deficit of $293.0M indicates that the company has consumed vast amounts of capital without generating revenue. This raises questions about the sustainability of the current model, as future raises may be necessary, further diluting shareholders. Investors should weigh the balance sheet's liquidity against the ongoing dilution risk.