Cash flow analysis reveals an accelerating burn rate, with free cash flow deficits widening to -$41.5 million in Q2 2026, representing a 36% increase from the -$30.6 million deficit in Q2 2025.
Cabaletta Bio, Inc. (CABA) cash flow statement — 9-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 |
|---|
| Cash from Operations | -162.16M | -131.08M | -88.22M | -53.55M | -46.38M | -34.11M | -26.77M | -16.05M | -4.66M | 0 |
| Operating CF Margin % | - | - | - | - | - | - | - | - | - | - |
| Operating CF Growth % | -151.34% | -48.58% | -64.75% | -15.46% | -35.98% | -27.41% | -66.84% | -244.24% | - | - |
| Net Income | -189.5M | -167.86M | -115.86M | -67.67M | -52.98M | -46.29M | -33.34M | -16.94M | -12.2M | -333.33K |
| Depreciation & Amortization | 5.61M | 1.65M | 1.71M | 1.43M | 1.18M | 733K | 354K | 104K | 6.19M | 333.33K |
| Stock-Based Compensation | 20.28M | 20.94M | 19.46M | 11.34M | 6.9M | 5.8M | 4.39M | 2.3M | 606K | 0 |
| Deferred Taxes | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -2.26M | 0 | 0 |
| Other Non-Cash Items | 3.99M | 14.57M | 4.86M | 1.26M | 2.82M | 62K | 119K | 2.26M | 1.21M | -81.33K |
| Working Capital Changes | -2.54M | -379K | 1.61M | 101K | -4.3M | 5.58M | 1.71M | -1.51M | -464K | 81.33K |
| Change in Receivables | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Inventory | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Payables | 534K | 1.55M | 1.01M | 1.68M | -28K | 975K | 555K | 246K | 234K | 0 |
| Cash from Investing | 100.61M | -50.27M | 47.29M | -22.45M | -27.22M | 6M | -7.98M | -693K | 0 | 0 |
| Capital Expenditures | -347K | -1.23M | -2.21M | -687K | -2.45M | -1.17M | -635K | -693K | 0 | 0 |
| CapEx % of Revenue | - | - | - | - | - | - | - | - | - | - |
| Acquisitions | 0 | 0 | 0 | 0 | 24.76K | 0 | 7.35K | 0 | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - |
| Other Investing | 0 | 0 | 0 | 0 | -24.76K | 0 | -7.35K | 0 | 0 | 0 |
| Cash from Financing | 300.77M | 100.35M | 11.68M | 187.63M | 32.98M | 48.9M | -24K | 119.92M | 37.68M | 1.33K |
| Debt Issued (Net) | -6.67M | -6.26M | -897K | 0 | 0 | 0 | 0 | 0 | 12.54M | 0 |
| Equity Issued (Net) | 313.7M | 106.61M | 10.88M | 185.2M | 32.85M | 48.25M | -192K | 121.21M | 25.31M | 0 |
| Dividends Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | -10.09M | 0 | 0 |
| Share Repurchases | 0 | 0 | 0 | 0 | 0 | 0 | -192K | 0 | -169K | 0 |
| Other Financing | -6.26M | 0 | 1.7M | 2.43M | 127K | 650K | 168K | 8.8M | -169K | 1.33K |
| Net Change in Cash | 239.18M | -80.98M | -29.28M | 111.63M | -40.62M | 20.79M | -34.77M | 103.19M | 33.02M | 1.33K |
| Free Cash Flow | -162.51M | -132.31M | -90.43M | -54.24M | -48.83M | -35.27M | -27.41M | -16.74M | -4.66M | 0 |
| FCF Margin % | - | - | - | - | - | - | - | - | - | - |
| FCF Growth % | -35.13% | -46.31% | -66.74% | -11.06% | -38.44% | -28.72% | -63.73% | -259.11% | - | - |
| FCF per Share | -0.87 | -1.29 | -1.83 | -1.32 | -1.66 | -1.37 | -1.18 | -3.06 | -0.32 | - |
| FCF Conversion (FCF/Net Income) | 0.86x | 0.78x | 0.76x | 0.79x | 0.88x | 0.74x | 0.80x | 0.95x | 0.38x | - |
| Interest Paid | -279K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Quick answers to the most common questions about buying CABA stock.
Cabaletta Bio, Inc. (CABA) generated $-131.1M in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
Cabaletta Bio, Inc. (CABA) reported negative free cash flow of $132.3M in 2025, indicating capital requirements exceeded cash from operations.
Cabaletta Bio, Inc. (CABA) spent $1.2M 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
Accelerating cash burn rate
Metrics are mathematically derived from official filings.
Consistent Negative Conversion Reflects R&D Intensity
Operating cash flow consistently trails net losses, with the OCF/NI ratio averaging 0.81 over the last ten quarters, indicating that non-cash charges like stock-based compensation do not fully offset the cash consumed by core R&D operations.
The persistent gap between net loss and operating cash outflow suggests that the company's cash consumption is driven by fundamental operational spending, primarily on research and development. The OCF/NI ratio remaining below 1.0, even with significant non-cash SBC add-backs, implies that the underlying business is consuming cash at a rate slightly faster than the accounting loss, a trend that warrants monitoring for any acceleration.
Free Cash Flow Burn Accelerates Sharply
Free cash flow deficit has widened significantly, reaching -$41.5 million in Q2 2026, a 36% increase from the -$30.6 million deficit in Q2 2025, signaling a material acceleration in the company's cash consumption trajectory.
The escalating FCF deficit is a direct consequence of expanding R&D expenditures in the absence of revenue, as noted in the prior income statement analysis. This trajectory indicates that the company is in a phase of intensified investment, which, while necessary for pipeline development, shortens the financial runway and increases reliance on external financing. The lack of any revenue to offset these costs makes the burn rate the primary metric for assessing near-term viability.
Working Capital Swings Add Volatility to Burn
Working capital changes have been erratic, swinging from a $4.1 million source in Q2 2025 to a $9.4 million use in Q1 2026, introducing significant quarter-to-quarter volatility into the operating cash flow figures.
The large negative working capital change in Q1 2026, which contributed to a wider operating cash deficit, suggests potential timing issues in payables or inventory management, though the specific drivers are not detailed. For a pre-revenue company, these swings are likely driven by the timing of payments to vendors and accruals for clinical trial costs, rather than traditional inventory cycles, and they obscure the underlying operational cash burn rate.
Capital Deployment Solely Funds Operations
With zero dividends, share repurchases, or acquisitions reported, 100% of the company's capital deployment is directed toward funding its operating cash burn, as evidenced by the consistent negative free cash flow.
The absence of any capital returns or strategic investments confirms that Cabaletta is in a pure investment phase, channeling all available capital into its R&D programs. This singular focus is typical for a clinical-stage biotech but underscores that the company's value creation is entirely dependent on the future success of its pipeline, with no current cash generation to support shareholder returns or diversification.
Cash Burn Obscures True R&D Efficiency
The cash flow statement does not differentiate between capitalized and expensed R&D costs, potentially obscuring the true capital intensity of the company's research activities and the efficiency of its cash deployment.
While stock-based compensation is added back, the statement provides no insight into how much of the R&D spend is being capitalized versus expensed, which could affect the comparability of cash burn metrics over time. Furthermore, the accelerating cash deficit raises questions about the sustainability of the current spending pace without additional financing, a critical risk that the cash flow statement alone cannot fully illuminate without reference to the balance sheet's cash position.