Free cash flow was -$3.6M in Q3 2026, improving from -74.9% of revenue in Q2 2026, but this improvement leaned on a $9.6M working capital inflow, and no dividends or buybacks were paid, with capital directed toward operations.
Rhythm Pharmaceuticals, Inc. (RYTM) cash flow statement — 14-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 | Dec'13 | Dec'12 |
|---|
| Cash from Operations | -125.97M | -115.67M | -113.88M | -136.16M | -173.43M | -146M | -121.98M | -122.75M | -62.06M | -29.46M | -23.22M | -6.98M | -7.51M | -19.16M | -17.83M |
| Operating CF Margin % | - | -60.96% | -87.51% | -175.85% | -733.68% | -4629.14% | - | - | - | - | - | - | - | - | - |
| Operating CF Growth % | -84.52% | -1.58% | 16.36% | 21.49% | -18.78% | -19.69% | 0.63% | -97.81% | -110.64% | -26.88% | -232.79% | 7.07% | 60.81% | -7.44% | - |
| Net Income | -193.81M | -196.54M | -260.6M | -184.68M | -181.12M | -69.61M | -134M | -140.73M | -74.06M | -33.71M | -25.87M | -11.07M | -6.49M | -21.43M | -18.13M |
| Depreciation & Amortization | 1.02M | 1.34M | 1.56M | 1.76M | 1.67M | 1.16M | 690K | 834K | 442K | 223K | 144K | 0 | 0 | 20K | 17K |
| Stock-Based Compensation | 116.55M | 66.82M | 39.68M | 32.55M | 19.83M | 20.8M | 17.45M | 11.88M | 6.39M | 2.28M | 1.17M | 298K | 66K | 127K | 0 |
| Deferred Taxes | 0 | 0 | 0 | 0 | 0 | -100M | 0 | 0 | 0 | 1.86M | 0 | 0 | 0 | 0 | 0 |
| Other Non-Cash Items | 20.35M | 13.68M | 94.9M | 9.4M | 5.91M | -250K | -234K | 203K | 4.51M | -76K | 11K | 1.42M | -280K | 255K | 82K |
| Working Capital Changes | -14.44M | -968K | 10.57M | 4.81M | -19.72M | 1.9M | -5.89M | 5.07M | 667K | -39K | 1.33M | 2.38M | -801K | 2M | 201K |
| Change in Receivables | -14.97M | -7.57M | -3.65M | -8.64M | -5.2M | -1.25M | 0 | 0 | 0 | 0 | 0 | -60K | 0 | 0 | 0 |
| Change in Inventory | -14.19M | -7.47M | -10.12M | -5.71M | -2.81M | -11K | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Change in Payables | 19.34M | 21.89M | 21.92M | 14.77M | 1.54M | 18.31M | -6.45M | 10.51M | 6.95M | 1.95M | 467K | 3.84M | 0 | -780K | 1.58M |
| Cash from Investing | 142.36M | -137.15M | -48.17M | -5.67M | 28.03M | -62.16M | 158.53M | -27.97M | -87.15M | -110.04M | -5.11M | -17K | 0 | -5.13M | -5.27M |
| Capital Expenditures | -1.45M | -953K | 0 | -47K | -4.28M | -5.43M | -214K | -3.38M | -722K | -133K | -1.06M | -17K | 0 | 0 | 0 |
| CapEx % of Revenue | 0.52% | 0.5% | - | 0.06% | 18.11% | 172.29% | - | - | - | - | - | - | - | - | - |
| Acquisitions | 0 | 0 | 0 | 0 | 4M | 100M | 0 | 24.59M | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | 0 | -40M | -40.5M | -5.67M | -4M | 7M | 0 | -24.59M | -86.43M | -109.91M | -4.05M | 0 | 0 | 0 | 0 |
| Cash from Financing | -21.16M | 217.96M | 191.24M | 74.37M | 213.83M | 166.48M | 2.01M | 163.47M | 164.69M | 167.2M | 0 | 41.71M | 7.42M | 19.88M | 22.44M |
| Debt Issued (Net) | -28.82M | 0 | -12.9M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Equity Issued (Net) | 31.79M | 237.88M | 195.24M | 48.88M | 131.11M | 161.73M | 0 | 161.35M | 162.88M | 166.5M | 0 | 39.62M | 0 | 19.88M | 22.44M |
| Dividends Paid | -1.46M | 0 | -3.97M | 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 | 0 | 0 | 0 | 0 |
| Other Financing | -22.68M | -19.92M | 12.87M | 25.49M | 82.72M | 4.75M | 2.01M | 2.12M | 1.81M | 700K | 0 | 2.09M | 7.42M | 0 | 0 |
| Net Change in Cash | -3.5M | -34.78M | 29.19M | -67.6M | 68.43M | -41.68M | 38.56M | 12.75M | 15.48M | 27.7M | -28.33M | 34.72M | -89K | -4.4M | -660K |
| Free Cash Flow | -127.43M | -116.63M | -113.88M | -136.2M | -177.71M | -151.44M | -122.19M | -126.14M | -62.78M | -29.59M | -24.28M | -6.99M | -7.51M | -19.16M | -17.83M |
| FCF Margin % | -45.39% | -61.46% | -87.51% | -175.91% | -751.79% | -4801.43% | - | - | - | - | - | - | - | - | - |
| FCF Growth % | -16.76% | -2.41% | 16.39% | 23.36% | -17.35% | -23.93% | 3.12% | -100.92% | -112.14% | -21.9% | -247.1% | 6.85% | 60.81% | -7.44% | - |
| FCF per Share | -1.85 | -1.79 | -1.87 | -2.36 | -3.41 | -3.05 | -2.77 | -3.46 | -2.02 | -1.11 | -1.45 | -0.69 | -0.74 | -0.38 | -0.35 |
| FCF Conversion (FCF/Net Income) | 0.66x | 0.59x | 0.44x | 0.74x | 0.96x | 2.10x | 0.93x | 0.91x | 0.84x | 0.87x | 0.90x | 0.63x | 1.16x | 0.89x | 0.98x |
| Interest Paid | 0 | 0 | 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 | 0 | 0 |
Quick answers to the most common questions about buying RYTM stock.
Rhythm Pharmaceuticals, Inc. (RYTM) generated $-115.7M in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
Rhythm Pharmaceuticals, Inc. (RYTM) reported negative free cash flow of $116.6M in 2025, indicating capital requirements exceeded cash from operations.
Rhythm Pharmaceuticals, Inc. (RYTM) spent $1.0M 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 cash burn requires financing
Metrics are mathematically derived from official filings.
Operating Cash Flow Lags Losses Narrowly
According to the reported quarterly statements, RYTM's operating cash flow has run at roughly 0.5x to 1.1x of net loss over recent quarters, indicating that non-cash charges such as the $25.0M stock-based compensation in Q3 2026 account for a meaningful share of reported losses.
The ratio of operating cash flow to net income is not a conventional cash generation signal here because both figures are negative, so the relevant reading is how much of the reported loss is cash-consuming. The company's cash outflow in Q2 and Q1 2026 exceeded its net loss, which suggests working capital drag and timing effects were adding to operating burn in those periods rather than masking it. Investors should monitor whether the non-cash add-backs continue to represent a large share of expenses, as that dynamic affects how much of the loss requires external funding.
Free Cash Flow Deeply Negative Throughout
Based on the supplied figures, RYTM's free cash flow was negative in every one of the last nine reported quarters, with a Q3 2026 free cash flow margin of -3.9% that improved sharply from -74.9% in Q2 2026.
The sharp narrowing in the latest quarter is driven by a working capital inflow of $9.6M and reduced cash burn, which reads as partly timing-dependent rather than a proven structural shift. Revenue growth has not yet translated into sustained free cash flow generation, indicating that the commercial cost base still absorbs the gross profit. The trajectory warrants monitoring over additional quarters before concluding that the business is approaching self-funding.
No Shareholder Returns, Cash Reserved for Operations
As reported in the financial statements, RYTM recorded no dividends or share buybacks across the period and minimal acquisition outflows, with capital appearing to be directed toward funding operating losses.
The absence of distributions is consistent with a company in a cash-consumption phase, where every dollar of available liquidity supports commercial launch and development costs. Given the reported cash balance of $54.3M against a trailing net loss exceeding $190M, the capital position appears to leave limited room for discretionary deployment. Investors should watch for any future equity or debt issuance, which would be the more likely form of capital inflow than internally generated returns to shareholders.
Working Capital Swings May Flatter Recent Quarters
Based on reported figures, the Q3 2026 improvement in free cash flow relies on a $9.6M working capital inflow, and the wider 10-quarter record shows that such swings have reversed in prior periods.
The reported working capital line moved from a $17.0M outflow in Q1 2026 to a $9.6M inflow in Q3 2026, so the latest quarter's narrowing of burn may not reflect a durable change in operating economics. Stock-based compensation is a material non-cash add-back, and cash-based expense pressure could be understated if equity-linked compensation is replaced by cash incentives. This analysis suggests the cash picture should be read with caution until operating cash flow turns positive without relying on working capital timing.