Free cash flow generation is robust but volatile, with a trailing twelve-month FCF margin of 18.5% that is heavily influenced by quarterly working capital swings, such as the $544M use in 2026Q2.
TransDigm Group Incorporated (TDG) cash flow statement — 24-year operating, investing & financing cash flows
| Metric | TTM | Sep'25 | Sep'24 | Sep'23 | Sep'22 | Sep'21 | Sep'20 | Sep'19 | Sep'18 | Sep'17 | Sep'16 | Sep'15 | Sep'14 | Sep'13 | Sep'12 | Sep'11 | Sep'10 | Sep'09 | Sep'08 | Sep'07 | Sep'06 | Sep'05 | Sep'04 | Sep'03 | Sep'02 |
|---|
| Cash from Operations | 2.2B | 2.04B | 2.04B | 1.38B | 948M | 913M | 1.21B | 1.02B | 1.02B | 788.73M | 668.93M | 520.94M | 541.22M | 470.2M | 413.88M | 260.58M | 197.3M | 197.11M | 189.63M | 112.44M | 3.06M | 80.69M | 111.14M | -17.33M | 56.45M |
| Operating CF Margin % | - | 23.08% | 25.76% | 20.88% | 17.46% | 19.03% | 23.77% | 19.44% | 26.82% | 22.51% | 21.09% | 19.24% | 22.81% | 24.43% | 24.15% | 21.61% | 23.84% | 25.88% | 26.57% | 18.97% | 0.7% | 21.56% | 36.96% | -5.91% | 22.69% |
| Operating CF Growth % | 5.23% | -0.34% | 48.73% | 45.04% | 3.83% | -24.73% | 19.45% | -0.66% | 29.6% | 17.91% | 28.41% | -3.75% | 15.1% | 13.61% | 58.83% | 32.07% | 0.1% | 3.94% | 68.66% | 3576.78% | -96.21% | -27.39% | 741.24% | -130.7% | - |
| Net Income | 2.13B | 2.07B | 1.72B | 1.3B | 867M | 681M | 700M | 891.31M | 957.06M | 596.89M | 586.41M | 447.21M | 306.91M | 302.79M | 324.97M | -19.91M | 163.44M | 162.9M | 133.13M | 88.64M | 25.12M | 34.69M | 13.62M | -75.73M | 30.63M |
| Depreciation & Amortization | 431M | 367M | 312M | 268M | 253M | 253M | 283M | 225.7M | 129.84M | 141.03M | 121.67M | 93.66M | 96.39M | 73.52M | 68.23M | 60.46M | 30.16M | 27.52M | 25.25M | 27.1M | 42.83M | 20.76M | 22.09M | 2.92M | 6.29M |
| Stock-Based Compensation | 151M | 157M | 217M | 157M | 153M | 129M | 93M | 93.36M | 58.48M | 45.52M | 48.31M | 31.5M | 26.33M | 48.88M | 22.15M | 12.57M | 6.7M | 5.81M | 4.04M | 3.49M | -27.85M | 0 | 0 | 0 | 0 |
| Deferred Taxes | -9M | -10M | 10M | 3M | -22M | 34M | 24M | -349K | -151.64M | -918K | 5.81M | 660K | -9.42M | -2.61M | 24.8M | 8.89M | 1.9M | 8.8M | 7.33M | 6.23M | 18.23M | 693K | 2.71M | 0 | 0 |
| Other Non-Cash Items | 59M | 8M | 93M | 79M | -43M | -60M | -22M | 19.2M | 33M | 92.57M | 17.64M | -27.77M | 93.04M | -23.99M | -38.01M | 231.02M | -9.88M | -6.03M | -15.66M | 3.49M | 55.85M | 37.15M | 50.37M | 55.48M | 19.53M |
| Working Capital Changes | -564M | -558M | -302M | -431M | -260M | -124M | 135M | -213.75M | -4.57M | -86.35M | -110.91M | -24.32M | 27.97M | 71.62M | 11.75M | -32.45M | 4.97M | -1.9M | 35.54M | -13.03M | -111.12M | -12.6M | 22.34M | 0 | 0 |
| Change in Receivables | -169M | -212M | -84M | -212M | -190M | -78M | 352M | -82.27M | -43.81M | -54.67M | -80.11M | -25.42M | -24.31M | -25.01M | -1.96M | -15.15M | -17.72M | -346K | 7.1M | -17.4M | -489K | 0 | 0 | 0 | 0 |
| Change in Inventory | -221M | -156M | -104M | -261M | -134M | 79M | -62M | -35.71M | -10.81M | 5.13M | -2.07M | -25.97M | -8.39M | -15.29M | -416K | -9.84M | 2.89M | -4.52M | 878K | -5.62M | -10.16M | -4.57M | -2.16M | 0 | 0 |
| Change in Payables | 44M | 38M | -11M | 12M | 58M | 3M | -62M | -1.63M | 18.07M | -10.35M | -6.66M | 13.48M | -2.42M | 23.51M | -3.62M | 4.38M | 4.93M | 8.81M | -333K | 1.64M | 1.62M | 0 | 0 | 0 | 0 |
| Cash from Investing | -3.62B | -595M | -2.44B | -900M | -553M | -785M | 799M | -3.89B | -683.58M | -287M | -1.44B | -1.68B | -329.64M | -502.44M | -876.29M | -1.4B | -176.56M | -168.39M | -165.04M | -521.66M | -35.32M | -20.53M | -77.62M | -526.59M | -5.44M |
| Capital Expenditures | -271M | -222M | -165M | -139M | -119M | -105M | -105M | -101.59M | -73.34M | -71.01M | -43.98M | -54.87M | -34.15M | -35.53M | -25.25M | -18.03M | -12.89M | -13.15M | -10.88M | -10.26M | -8.35M | -7.96M | -5.42M | -5.21M | -3.82M |
| CapEx % of Revenue | 2.71% | 2.51% | 2.08% | 2.11% | 2.19% | 2.19% | 2.06% | 1.94% | 1.92% | 2.03% | 1.39% | 2.03% | 1.44% | 1.85% | 1.47% | 1.49% | 1.56% | 1.73% | 1.52% | 1.73% | 1.92% | 2.13% | 1.8% | 1.78% | 1.53% |
| Acquisitions | -3.34B | -419M | -2.35B | -762M | -434M | -704M | 904M | -3.98B | -667.62M | -215.99M | -1.4B | -1.62B | -311.87M | -483.26M | -851.05M | -1.38B | -166.56M | -155.23M | -154.16M | -511.41M | -26.97M | -63.17M | -21.53M | 0 | 0 |
| Investments | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Other Investing | -6M | 46M | 71M | 1M | 0 | 24M | 0 | 188.77M | 57.38M | 0 | 0 | 0 | 16.38M | -35.53M | -851.05M | 271.36M | 2.88M | 0 | 0 | 0 | 0 | 0 | 0 | -521.38M | -1.62M |
| Cash from Financing | 1.42B | -4.9B | 3.17B | -16M | -2.15B | -70M | 1.23B | 2.27B | 1.09B | -1.44B | 1.65B | 1.05B | 43.97M | 156.19M | 527.19M | 1.28B | 23.2M | 2.38M | 28.52M | 453.96M | -10.74M | -4.44M | -3.92M | 553.82M | -13.03M |
| Debt Issued (Net) | 8.32B | 5.07B | 4.83B | -173M | -275M | -125M | 3.07B | 3.9B | 1.09B | 1.52B | 1.82B | 935.94M | 1.58B | 2.06B | 465.07M | 1.25B | 404.25M | 0 | 0 | 421.88M | -12.17M | -2.94M | -2.21M | 0 | 0 |
| Equity Issued (Net) | -1.67B | -334M | 245M | 215M | -780M | 0 | -19M | 81.88M | 57.58M | -389.82M | -207.75M | 0 | -159.85M | 0 | -846K | 0 | 0 | -15.24M | 9.77M | 8.45M | 1.43M | 0 | -215K | 0 | 0 |
| Dividends Paid | -5.29B | -9.63B | -2.04B | -38M | -1.09B | -73M | -1.93B | -1.71B | -56.15M | -2.58B | -3M | -3.37M | -1.45B | -1.99B | -3.3M | -2.81M | -404.87M | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Share Repurchases | -1.81B | -500M | 0 | 0 | -912M | -128M | -19M | 0 | 0 | -389.82M | -207.75M | 0 | -159.85M | 0 | -846K | 0 | 0 | -15.24M | 0 | 0 | 0 | 0 | -239K | 0 | 0 |
| Other Financing | 60M | -10M | 129M | -20M | -2M | 128M | 105M | -303K | -10.84M | 3.61M | 40.9M | 122.37M | 78.42M | 87.73M | 66.27M | 32.62M | 23.82M | 17.62M | 18.76M | 23.63M | 0 | -1.5M | -1.5M | 553.82M | -13.03M |
| Net Change in Cash | -19M | -3.45B | 2.79B | 471M | -1.79B | 70M | 3.25B | -605.53M | 1.42B | -936.43M | 872.96M | -105.52M | 254.81M | 124.22M | 64.34M | 142.07M | 43.95M | 31.11M | 53.12M | 44.73M | -43M | 55.72M | 29.6M | 553.82M | -13.03M |
| Free Cash Flow | 1.93B | 1.82B | 1.88B | 1.24B | 829M | 808M | 1.11B | 913.88M | 948.83M | 717.72M | 624.95M | 466.07M | 507.08M | 434.67M | 388.64M | 242.55M | 184.42M | 183.96M | 178.75M | 102.18M | -5.29M | 72.73M | 105.72M | -22.54M | 52.64M |
| FCF Margin % | 19.26% | 20.56% | 23.68% | 18.77% | 15.27% | 16.84% | 21.71% | 17.5% | 24.9% | 20.48% | 19.71% | 17.22% | 21.37% | 22.59% | 22.67% | 20.11% | 22.28% | 24.16% | 25.05% | 17.24% | -1.22% | 19.43% | 35.16% | -7.69% | 21.16% |
| FCF Growth % | 1.1% | -3.4% | 52.1% | 49.1% | 2.6% | -27.08% | 21.24% | -3.68% | 32.2% | 14.84% | 34.09% | -8.09% | 16.66% | 11.84% | 60.23% | 31.52% | 0.25% | 2.91% | 74.94% | 2030.8% | -107.28% | -31.2% | 569.03% | -142.82% | - |
| FCF per Share | 33.28 | 31.20 | 32.53 | 21.61 | 14.24 | 13.84 | 19.34 | 16.24 | 17.07 | 12.92 | 11.13 | 8.23 | 8.90 | 7.89 | 7.21 | 4.55 | 3.48 | 3.50 | 3.56 | 2.10 | -0.11 | 1.56 | 2.28 | -3.06 | 381.42 |
| FCF Conversion (FCF/Net Income) | 0.91x | 0.98x | 1.19x | 1.06x | 1.09x | 1.34x | 1.74x | 1.30x | 1.13x | 1.80x | 1.15x | 1.17x | 3.00x | 3.57x | 1.29x | 1.77x | 1.48x | 1.21x | 1.42x | 1.27x | 0.12x | 2.33x | 8.16x | 0.23x | 1.84x |
| Interest Paid | 302M | 1.48B | 1.16B | 1.16B | 1.06B | 1.01B | 923M | 878M | 635M | 587.72M | 448.61M | 398.94M | 319.58M | 236.77M | 197.79M | 155.85M | 97.71M | 82.25M | 95.1M | 0 | 0 | 0 | 0 | 0 | 0 |
| Taxes Paid | -53M | 640M | 539M | 260M | 220M | 83M | 223M | 215M | 129M | 185.29M | 183.29M | 127.36M | 97.8M | 82.29M | 103.94M | 88.37M | 72.5M | 75.31M | 39.92M | 0 | 0 | 0 | 0 | 0 | 0 |
Quick answers to the most common questions about buying TDG stock.
TransDigm Group Incorporated (TDG) generated $2.04B in net cash from operating activities in 2025. This reflects the cash generated directly from core business operations.
TransDigm Group Incorporated (TDG) generated $1.82B in free cash flow in 2025. Free cash flow is the cash left over after capital expenditures, which can be used to pay dividends, repurchase shares, or pay down debt.
TransDigm Group Incorporated (TDG) spent $222.0M on capital expenditures in 2025. CapEx represents the cash invested in physical assets like property, plant, and equipment to maintain or grow the business.
In 2025, TransDigm Group Incorporated (TDG) returned $9.63B to shareholders via cash dividends and spent $500.0M on share repurchases. This shows the company's commitment to returning capital to its equity investors.
Key Metrics
Top Statement Risk
Leverage constrains financial flexibility
Metrics are mathematically derived from official filings.
Earnings Quality Masked by Working Capital Swings
The volatile relationship between net income and operating cash flow, with OCF/NI ratios ranging from 0.25 to 1.87 over the past ten quarters, suggests that reported earnings are heavily influenced by non-cash items and significant working capital timing, as seen in the 2026Q2 OCF of $135M versus net income of $535M.
The wide dispersion in cash conversion indicates that net income is not a reliable proxy for cash generation in any given quarter, likely due to the amortization of intangible assets from acquisitions and the lumpy nature of inventory and receivables cycles. Investors should focus on the trend of operating cash flow relative to EBITDA, as the underlying cash generation from the core business appears robust when working capital effects are normalized.
FCF Volatility Amidst Strong Underlying Generation
Free cash flow has been highly erratic, swinging from a negative $64M in 2026Q2 to a robust $772M in 2026Q1, yet the trailing twelve-month FCF margin remains a healthy 18.5%, indicating the business generates substantial cash when not distorted by quarterly working capital movements.
The FCF trajectory is not linear but episodic, with strong cash generation quarters often followed by quarters of significant working capital investment. This pattern is consistent with a business that manages large, infrequent inventory builds and collections cycles. The underlying FCF power is evident in the quarters where working capital is a source of cash, demonstrating the high-margin, low-capital-intensity nature of the core operations.
Working Capital as a Major Cash Flow Driver
Working capital changes have been the primary driver of operating cash flow volatility, with swings from a $544M use of cash in 2026Q2 to a $223M source in 2026Q1, suggesting that inventory and receivables management are critical to quarterly liquidity.
The large negative working capital changes in certain quarters, such as the $477M outflow in 2025Q2, appear to be driven by strategic inventory builds ahead of anticipated demand or acquisition integration. Conversely, positive quarters indicate efficient collections and inventory turnover. This volatility obscures the true cash generation trend and requires analysts to look through the noise to assess the core business's cash conversion cycle.
Aggressive Capital Returns and Acquisition-Fueled Growth
Capital deployment has been dominated by large, episodic special dividends (e.g., $5.2B in 2025Q4) and significant acquisition spending (e.g., $2.2B in 2026Q3), indicating a private equity-style model that prioritizes shareholder returns and inorganic growth over balance sheet deleveraging.
The pattern of massive special dividends followed by periods of acquisition activity suggests management is recycling cash flow from operations into both returns and growth. The consistent, albeit lumpy, acquisition spending underscores the company's reliance on M&A to expand its proprietary product portfolio. This strategy, while historically value-creating, is heavily dependent on maintaining access to capital markets and favorable financing conditions.
Cash Flow Statement Obscures True Economic Cost
The cash flow statement does not fully reflect the economic cost of the company's aggressive acquisition strategy, as significant non-cash amortization of intangibles depresses net income while cash spent on acquisitions is classified as investing, not operating.
A key limitation is that the high reported operating cash flow includes the benefit of acquired cash flows but does not deduct the full economic cost of the acquisitions themselves, which are capitalized. Furthermore, the substantial stock-based compensation (e.g., $65M in 2026Q3) is a real cost to shareholders but is added back to arrive at operating cash flow, potentially overstating the cash available for debt service and true economic returns.