Operating cash flow was negative in all ten quarters, reaching -$77.5M in 2026Q3 versus -$29.4M in 2024Q3, with no capital expenditure, dividends, or buybacks, indicating the burn is funded entirely by external capital.
Spyre Therapeutics, Inc. (SYRE) cash flow statement — 12-year operating, investing & financing cash flows
| 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 |
|---|
| Cash from Operations | -249.32M | -169.25M | -157.41M | -99.91M | -80.14M | -53.72M | -75.78M | -65.69M | -32.19M | -24.61M | -18.84M | -10.98M | -7.33M |
| Operating CF Margin % | - | - | - | -11276.52% | -3441.13% | -286.65% | - | - | -828.01% | -472.91% | -407.09% | -180.48% | - |
| Operating CF Growth % | -218.64% | -7.52% | -57.55% | -24.66% | -49.2% | 29.11% | -15.35% | -104.06% | -30.79% | -30.65% | -71.55% | -49.72% | - |
| Net Income | -263.86M | -155.2M | -208.02M | -338.79M | -83.81M | -65.8M | -80.89M | -78.25M | -44.35M | -27.24M | -21.7M | -11.29M | -10.35M |
| Depreciation & Amortization | 0 | 10M | 0 | 744K | 1.96M | 1.58M | 996K | 901K | 293K | 249K | 132K | 89K | 19K |
| Stock-Based Compensation | 50.3M | 37.61M | 44.83M | 25.68M | 7.11M | 8.04M | 6.26M | 0 | 0 | 0 | 0 | 767K | 147K |
| Deferred Taxes | 0 | 0 | 0 | 0 | -327K | 0 | -213K | 0 | 0 | 0 | 0 | 0 | 0 |
| Other Non-Cash Items | -33.35M | -55.73M | 10.31M | 217.67M | 426K | 638K | 619K | 3.78M | 1.93M | 4.77M | 1.07M | 790K | 2.82M |
| Working Capital Changes | -2.41M | -5.93M | -4.53M | -5.21M | -5.5M | 1.83M | -2.54M | 7.1M | 7.2M | -198K | 1.45M | -1.33M | 26K |
| Change in Receivables | 0 | 0 | 0 | 375K | 440K | -815K | 0 | 0 | 3.08M | -1.86M | 482K | -1.7M | 0 |
| Change in Inventory | 0 | 0 | 0 | 0 | -440K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Payables | 1.49M | 7.65M | -230K | 218K | -2.64M | 1.06M | -544K | 2.58M | 239K | 164K | -8K | -169K | -165K |
| Cash from Investing | -492.54M | -143.47M | -353.29M | -108.39M | 57.01M | -22.62M | -7.6M | -1.74M | -15.23M | -22.53M | -12.16M | -4.01M | -221K |
| Capital Expenditures | 0 | 0 | 0 | 0 | -38K | -573K | -4.28M | -1.49M | -422K | -619K | -212K | -208K | -181K |
| CapEx % of Revenue | 0% | - | - | - | 1.63% | 3.06% | - | - | 10.85% | 11.89% | 4.58% | 3.42% | - |
| Acquisitions | 0 | 0 | 0 | 3.04M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | 70M | 7M | 0 | 15.47M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -40K | -40K |
| Cash from Financing | 759.69M | 309.02M | 410.91M | 361.08M | 42.68M | 1.39M | 154.51M | 65.72M | 57.07M | 12.21M | 49.37M | 41.67M | 5.58M |
| Debt Issued (Net) | 0 | 0 | 0 | -16K | -418K | -510K | -20K | -25K | 0 | 0 | 0 | 0 | 0 |
| Equity Issued (Net) | 816.4M | 314.44M | 405.23M | 366.47M | 42.87M | 0 | 153.72M | 64.3M | 54.05M | 11.38M | 49.29M | 41.65M | 5.58M |
| Dividends Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Share Repurchases | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -2.03M | 0 |
| Other Financing | -56.72M | -5.41M | 5.67M | -5.38M | 222K | 1.9M | 816K | 1.45M | 3.02M | 833K | 76K | 23K | 0 |
| Net Change in Cash | 17.83M | -3.7M | -99.79M | 152.8M | 19.44M | -74.96M | 71.18M | -3.21M | 9.64M | -34.93M | 18.37M | 26.68M | -1.98M |
| Free Cash Flow | -249.32M | -169.25M | -157.41M | -99.91M | -80.18M | -54.29M | -80.06M | -67.18M | -32.62M | -25.23M | -19.05M | -11.19M | -7.52M |
| FCF Margin % | -275.51% | - | - | -11276.52% | -3442.77% | -289.71% | - | - | -838.86% | -484.8% | -411.67% | -183.89% | - |
| FCF Growth % | -54.02% | -7.52% | -57.55% | -24.6% | -47.69% | 32.19% | -19.16% | -105.99% | -29.25% | -32.45% | -70.26% | -48.88% | - |
| FCF per Share | -2.82 | -2.64 | -3.35 | -14.49 | -23.78 | -20.64 | -37.50 | -52.57 | -39.16 | -41.70 | -48.64 | -24.48 | -13.74 |
| FCF Conversion (FCF/Net Income) | 0.94x | 1.09x | 0.76x | 0.29x | 0.96x | 0.82x | 0.94x | 0.84x | 0.73x | 0.90x | 0.87x | 0.97x | 0.71x |
| Interest Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Quick answers to the most common questions about buying SYRE stock.
Spyre Therapeutics, Inc. (SYRE) generated $-169.3M in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
Spyre Therapeutics, Inc. (SYRE) reported negative free cash flow of $169.3M in 2025, indicating capital requirements exceeded cash from operations.
Spyre Therapeutics, Inc. (SYRE) 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.
Key Metrics
Top Statement Risk
Persistent operating cash burn
Metrics are mathematically derived from official filings.
Losses Mask Diverging Cash Burn Patterns
Based on reported quarterly figures, Spyre's operating cash flow was negative in every one of the ten quarters shown, with the OCF-to-net-income ratio swinging between 0.43 and 3.32 rather than settling into a stable relationship.
Because both net income and operating cash flow are negative, the conversion ratio is not a reliable measure of earnings quality here; the sign-consistent burn is the more meaningful signal. The erratic ratio suggests that non-cash items such as stock-based compensation, which ranged from roughly $8.7M to $14.2M per quarter, and working capital movements are timing the gap between accounting losses and cash outflows. Investors should monitor whether cash burn tracks reported losses over time, as divergence in either direction would warrant further investigation.
Free Cash Flow Deficit Widening Into 2026
According to the reported figures, free cash flow remained negative throughout the period, reaching -$77.5M in 2026Q3 compared with -$29.4M in 2024Q3, with no capital expenditure recorded in any quarter.
The absence of CapEx means free cash flow equals operating cash flow, so the deficit reflects operating spending alone rather than infrastructure build-out. The 2026Q3 burn is more than double the 2024Q3 level, consistent with the expanding R&D cost base noted in prior income statement findings. Free cash flow margin is not meaningful given the absence of recurring revenue, so the trajectory is best read in absolute dollars against the company's liquidity runway.
Capital Consumed Entirely by Operations
As reported in the cash flow statement, Spyre recorded no dividends, buybacks, or material acquisitions across the period, with the only financing-related outflow being a $117K buyback in 2025Q1.
Capital deployment is effectively absent, meaning every dollar of available capital is being directed toward operating expenses, principally clinical development. This implies the company's survival depends on its existing cash reserves and any future external financing, which the supplied data does not describe. The absence of shareholder returns is expected for a clinical-stage biotechnology company but leaves no internal capital allocation discretion.
Cumulative Burn Exceeds Reported Losses
Based on reported figures, cumulative operating cash outflow over the ten quarters totals roughly $477M, while cumulative net loss totals roughly $540M, indicating that accounting losses have been only partially matched by cash consumption.
The gap between cumulative net loss and cumulative operating cash burn is driven largely by non-cash charges such as stock-based compensation and by working capital movements that partially offset the cash drain. Because the net loss exceeds the cash burn over this window, the accounting picture is somewhat more pessimistic than the cash picture, though both point to sustained consumption. Investors should monitor whether this gap narrows as the company approaches commercial milestones or widens as clinical programs expand.
What the Cash Burn Figures Obscure
Based on the supplied quarterly data, the cash flow statement shows no capital expenditure or financing inflows, so the reported burn may not capture the full financing requirement, which the data does not describe.
The cash flow figures presented contain no financing inflow data, meaning the analysis cannot determine how the company funds the roughly $477M of cumulative operating outflow over the period. Stock-based compensation add-backs of $8.7M to $14.2M per quarter reduce the reported cash burn relative to the economic cost of equity-funded operations, which may understate dilution pressure. Investors should monitor future filings for disclosed financing activity and any off-balance-sheet commitments, as these are not visible in the supplied data and warrant further investigation.