Free cash flow remains deeply negative, with the firm burning between $1.3 million and $2.9 million per quarter, leaving the business model entirely dependent on external capital to fund operations.
| 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 | Dec'05 | Dec'04 | Dec'03 | Dec'02 | Dec'01 | Dec'00 | Dec'99 | Dec'98 | Dec'97 | Dec'96 |
|---|
| Cash from Operations | -10.78M | -10.27M | -8.4M | -8.6M | -12.65M | -11.74M | -11.45M | -7.51M | -7.24M | -6.51M | -4.98M | -5.39M | -2.47M | -4.46M | -2.64M | -1.95M | -5.73M | -4.6M | -2.79M | -6M | -4.14M | -4.67M | -4.41M | -4.22M | -6M | -3.98M | -3.45M | -1.98M | -4.1M | -2.3M | -1M |
| Operating CF Margin % | - | - | - | - | -5059.61% | -35200.2% | -593.33% | -233.53% | -138.23% | -119.86% | -47.68% | -61.43% | -35.02% | -138.24% | -83.8% | -25.47% | -294.18% | -163.47% | -120.71% | -476.78% | -179.07% | -151.84% | -441.89% | -5033% | - | - | - | - | -2050% | -2300% | - |
| Operating CF Growth % | -94.32% | -22.17% | 2.33% | 31.98% | -7.75% | -2.49% | -52.53% | -3.66% | -11.28% | -30.67% | 7.5% | -118.36% | 44.65% | -69.11% | -35.04% | 65.94% | -24.49% | -65.09% | 53.51% | -44.81% | 11.32% | -5.96% | -4.49% | 29.7% | -50.9% | -15.27% | -74.51% | 51.79% | -78.26% | -129.47% | - |
| Net Income | -10.95M | -11.08M | -8.27M | -6.14M | -13.8M | -12.55M | -17.69M | -9.36M | -8.9M | -7.15M | -3.25M | -7.83M | -6.71M | -10.06M | -4.16M | -2.38M | -7.39M | -6.03M | -3.42M | -6.16M | -8.16M | -4.72M | -5.87M | -5.29M | -4.97M | -14.63M | -4.8M | -7.5M | -21.8M | -3.2M | -1.19M |
| Depreciation & Amortization | 3.71K | 3.22K | 5.81K | 6.55K | 24.56K | 34.16K | 62.37K | 54.45K | 44.06K | 68.56K | 89.93K | 247.46K | 245.79K | 230.07K | 230.63K | 226.03K | 185.7K | 175.6K | 149.18K | 119.56K | 137.04K | 194.28K | 302.45K | 226.14K | 345.5K | 188.53K | 156.86K | 1.41M | 1.7M | 500K | 204.46K |
| Stock-Based Compensation | 523.98K | 587.58K | 329.81K | 370.18K | 333.39K | 361.56K | 409.93K | 376.34K | 380.89K | 489.79K | 574.98K | 886.69K | 976.19K | 885.21K | 493.17K | 715.8K | 571.54K | 579.07K | 522.68K | 0 | 0 | 0 | 0 | 0 | 30.41K | 30.41K | 0 | 0 | 0 | 0 | 0 |
| Deferred Taxes | 0 | 0 | 0 | 0 | 0 | -421.58K | 0 | -3.84K | 0 | 0 | -383.32K | 315.18K | 0 | 0 | 0 | 2.47M | 0 | 2.4K | 0 | 0 | 0 | 0 | 0 | 0 | -30.41K | -30.41K | 0 | 0 | 0 | 0 | 0 |
| Other Non-Cash Items | 263.61K | 191.2K | -124.26K | 597.4K | 366.25K | 185.72K | 5.25M | 282.35K | 1.48K | 5.92K | -1.49M | 897.34K | 668.58K | 5.16M | 429.9K | -1.93M | 550.39K | 660.23K | 100K | 1.4M | 2.69M | -120.51K | 467.18K | 1.09M | -536.48K | 10.61M | 2.78M | 3.08M | 18.9M | 0 | -1.38K |
| Working Capital Changes | -924.95K | 31.82K | -348.41K | -3.44M | 425.11K | 651.5K | 509.31K | 1.14M | 1.23M | 72.24K | -529.88K | 98.25K | 2.35M | -672.8K | 373.77K | -1.05M | 348.37K | 13.96K | -138.21K | -1.35M | 1.19M | -24.22K | 694.17K | -246.84K | -843.73K | -147.02K | -1.59M | 1.04M | -2.9M | 400K | -17.42K |
| Change in Receivables | 0 | 0 | 219.9K | 33.89K | 23.76K | 64.89K | 815.06K | 182.88K | -275.46K | 280.53K | 778.43K | -1.19M | 72.32K | -527.78K | 23.16K | 0 | -6.62M | -6.49M | -660.6K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Inventory | 0 | 0 | 0 | 0 | 0 | -1.13M | 1.16M | -1.97M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 42.87K | -10.68K | -182.18K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Payables | -670.98K | -16.5K | -492.61K | -2.69M | 396.65K | 1.13M | -1.16M | 1.97M | 1.02M | 382.71K | -1.48M | 1.38M | 1.48M | 395.79K | -179.05K | 0 | 829.32K | -170.15K | 167.4K | 0 | 0 | 0 | 0 | 0 | 68.82K | 68.82K | 0 | 0 | 0 | 0 | 0 |
| Cash from Investing | -5.88K | -5.88K | 0 | 0 | -13.07K | -11.79K | -7.15K | -24.71K | -925 | -26.35K | -7.16K | -22.1K | -300.87K | -17.73K | -4.75K | -152.66K | -336.42K | -222.53K | -242.39K | -363.36K | -208.56K | -272.13K | -277.65K | -353.29K | -677.02K | 3.23M | 1.36M | -5.23M | -17.9M | -200K | -67.96K |
| Capital Expenditures | 0 | -5.88K | 0 | 0 | -13.07K | -11.79K | -7.15K | -30.21K | -1.93K | -26.35K | -7.16K | -22.1K | -50.87K | -17.73K | -4.75K | -152.66K | -336.42K | -222.53K | -242.39K | -363.36K | -208.56K | -272.13K | -10.56K | -17.85K | -83.09K | -139.66K | -86.19K | -107.87K | -200K | -100K | -67.96K |
| CapEx % of Revenue | - | - | - | - | 5.23% | 35.35% | 0.37% | 0.94% | 0.04% | 0.49% | 0.07% | 0.25% | 0.72% | 0.55% | 0.15% | 1.99% | 17.27% | 7.9% | 10.49% | 28.88% | 9.02% | 8.85% | 1.06% | 21.3% | - | - | - | - | 100% | 100% | - |
| Acquisitions | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5.5K | 1K | 0 | 0 | 0 | -250K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3.79K | 0 | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | -5.88K | 0 | 0 | 0 | 0 | 0 | 0 | 5.5K | 1K | 0 | 0 | 0 | -250K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -267.1K | -335.44K | -2.61M | 1.36M | -82.71K | -2.64M | -16.7M | -100K | 0 |
| Cash from Financing | 9.52M | 10.39M | 7.76M | 3.66M | 76.82K | 19.06M | 24.68M | 4.01M | 8.42M | 5.57M | 8.84M | 4.8M | 2.44M | 6.97M | 0 | 649.36K | 5.83M | 11.04M | 2.29M | 8.46M | 3.65M | 3.43M | 2.9M | 4.54M | 882.93K | -145.18K | 7.92M | -56 | 18.5M | 17.2M | -143.75K |
| Debt Issued (Net) | 1.37M | -1.37M | -1.37M | -7M | 0 | -6.15K | 9.99M | -6.8K | 0 | 0 | -300K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -115.95K | -243.12K | -369.9K | -66.62K | -123.3K | -69.29K | -407 | 400K | 0 | 0 |
| Equity Issued (Net) | 10.08M | 12.47M | 5.81M | 11.59M | 79.35K | 19.71M | 14.62M | 4.14M | 8.68M | 6.25M | 9.99M | 3.84M | 2.41M | 6.74M | 0 | 355K | 5.75M | 11.04M | 2.29M | 8.46M | 3.65M | 3.55M | 3.14M | 4.91M | 949.55K | -21.87K | 7.99M | 351 | 18.2M | 17.2M | -143.75K |
| Dividends Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -936.95K | -1.49M | -1.49M | 0 | 0 | 0 | 0 | 0 |
| Share Repurchases | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -1.32K | 0 | -24.52K | 0 | 0 | 0 | -100K | 0 | -143.75K |
| Other Financing | -1.94M | -708.24K | 3.32M | -923.77K | -2.53K | -641.5K | 68.17K | -130.2K | -251.89K | -672.36K | -850.66K | 965.68K | 28.08K | 235.97K | 0 | 294.36K | 76.85K | 0 | 0 | 0 | 0 | 0 | 0 | 936.95K | 1.49M | 1.49M | 0 | 0 | -100K | 0 | 0 |
| Net Change in Cash | -1.3M | 116.64K | -626.64K | -4.91M | -12.68M | 7.37M | 13.26M | -3.56M | 1.17M | -963.08K | 3.85M | -603.55K | -331.15K | 2.5M | -2.64M | -1.46M | -240.3K | 6.22M | -744.66K | 2.1M | -702.07K | -1.51M | -1.79M | -30.63K | -5.79M | -889.21K | 5.84M | -7.21M | 18.5M | 17.2M | -1.21M |
| Free Cash Flow | -10.78M | -10.27M | -8.4M | -8.6M | -12.66M | -11.75M | -11.46M | -7.54M | -7.25M | -6.54M | -4.99M | -5.41M | -2.52M | -4.47M | -2.64M | -2.1M | -6.07M | -4.83M | -3.03M | -6.36M | -4.35M | -4.94M | -4.42M | -4.24M | -6.08M | -4.12M | -3.54M | -2.08M | -4.3M | -2.4M | -1.07M |
| FCF Margin % | - | - | - | - | -5064.84% | -35235.55% | -593.7% | -234.47% | -138.27% | -120.34% | -47.75% | -61.68% | -35.75% | -138.79% | -83.95% | -27.46% | -311.45% | -171.37% | -131.2% | -505.66% | -188.08% | -160.69% | -442.95% | -5054.3% | - | - | - | - | -2150% | -2400% | - |
| FCF Growth % | -20.98% | -22.17% | 2.33% | 32.05% | -7.75% | -2.53% | -52.01% | -4.05% | -10.86% | -31.01% | 7.74% | -114.82% | 43.74% | -69.48% | -25.46% | 65.31% | -25.72% | -59.22% | 52.36% | -46.22% | 11.99% | -11.87% | -4.3% | 30.37% | -47.8% | -16.41% | -69.62% | 51.52% | -79.17% | -124.24% | - |
| FCF per Share | -1.06 | -1.98 | -5.06 | -17.74 | -70.56 | -63.25 | -100.08 | -93.39 | -131.97 | -255.34 | -334.15 | -497.97 | -268.09 | -694.51 | -35.56 | -28.81 | -89.92 | -1383.12 | -89.25 | -210.43 | -204.70 | -298.21 | -326.27 | -435.53 | -811.29 | -918.18 | -870.05 | -581.49 | -1295.57 | -2292.26 | -633.68 |
| FCF Conversion (FCF/Net Income) | 0.98x | 0.93x | 1.02x | 1.40x | 0.92x | 0.94x | 0.65x | 0.80x | 0.81x | 0.91x | 1.54x | 0.69x | 0.37x | 0.44x | 0.63x | 0.82x | 0.78x | 0.76x | 0.81x | 0.97x | 0.51x | 0.99x | 0.75x | 0.80x | 1.21x | 0.27x | 0.72x | 0.26x | 0.19x | 0.72x | 0.84x |
| Interest Paid | 0 | 35.04K | 227.74K | 552.06K | 857.41K | 668.72K | 34.41K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.68K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | 65.99K | 122.16K | 42.16K | 20.73K | 16.04K | 7.73K | 4.02K | 11.13K | 2.58K | -5.08K | 5.03K | 7.54K | 6.99K | 0 | 0 | 0 | 2.85K | 2.54K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Liquidity and regulatory insolvency
As reported in recent financial statements, Soligenix consistently records operating cash flow deficits that closely track net losses, with the OCF/NI ratio fluctuating between 0.57 and 1.69, indicating that the company lacks any meaningful cash-generating operations to offset its ongoing research and development expenditures.
The tight correlation between net losses and operating cash outflows suggests that the company's burn is driven by core operational costs rather than non-cash accounting adjustments. Investors should monitor the volatility in this ratio, as it reflects the unpredictable timing of grant-related working capital inflows versus the steady, high-cost nature of clinical trial execution.
Based on the company's quarterly filings, free cash flow remains deeply negative across all observed periods, with the firm burning between $1.3 million and $2.9 million per quarter, confirming that the business model is currently entirely dependent on external financing to sustain its clinical pipeline.
The absence of positive free cash flow margins highlights the company's status as a pre-commercial entity where capital is consumed rather than generated. This trajectory suggests that without a significant shift toward commercial revenue or a major partnership, the current cash runway will continue to necessitate dilutive equity raises.
According to historical data, working capital changes have been highly erratic, swinging from a $1.3 million inflow in 2025Q1 to a $1.3 million outflow in 2024Q3, which complicates the assessment of the company's underlying cash burn rate and operational efficiency in managing grant-funded projects.
These fluctuations appear to be driven by the timing of government grant receipts rather than operational improvements in accounts payable or receivable management. Analysts should interpret these swings as temporary liquidity shifts rather than evidence of a sustainable improvement in the company's core cash management capabilities.
Financial disclosures reveal that stock-based compensation, reaching up to $320.1K in a single quarter, serves as a non-cash expense that masks the true economic cost of talent retention, while the lack of capitalized R&D costs suggests that all clinical spending is immediately hitting the cash flow statement.
The reliance on equity-based compensation to preserve cash warrants further investigation into the dilution impact on long-term shareholders. Because the company does not capitalize its R&D, the cash flow statement provides a transparent, albeit grim, view of the total capital required to maintain the current clinical trial portfolio.
Quick answers to the most common questions about buying SNGX stock.
Soligenix, Inc. (SNGX) generated $-10.3M in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
Soligenix, Inc. (SNGX) reported negative free cash flow of $10.3M in 2025, indicating capital requirements exceeded cash from operations.
Soligenix, Inc. (SNGX) spent $0.0M on capital expenditures in 2025. CapEx represents the cash invested in physical assets like property, plant, and equipment to maintain or grow the business.