01—Abstract
Summary
Summary of the 10-K filed November 12, 2025. Cited figures are marked; the original filing is the authoritative source.
TransDigm Group (TDG) reported fiscal 2025 (year ended September 30, 2025) net sales of $8,831 milliona, up 11.2% from $7,940 million, with organic sales growth of 7.7%.
Gross margin expanded to 60.1% from 58.8%, and income from operations rose to $4,165 millionb (47.2% of sales) from $3,531 million. Net income attributable to TD Group was $2,074 million, and basic and diluted EPS was $32.08 versus $25.62. Growth was driven by defense and commercial aftermarket demand, with Power & Control sales up 15.0% and Airframe up 8.0%.
Management also highlights that about 55% of sales come from the aftermarket and that roughly 90% of sales are from proprietary products. The balance sheet and capital structure changed sharply. Total debt rose to about $30.0 billionc from $24.9 billion, funding a $90 per share special dividend (about $5.2 billion) paid in September 2025 and $9.6 billion of total dividend and dividend-equivalent payments during the year.
Stockholders' deficit widened to $(9.7) billion, and cash fell to $2.8 billiond from $6.3 billion. Interest expense rose 22% to $1,572 million, and roughly 75% of gross debt is fixed-rate. Free cash flow was strong, with operating cash flow of $2,038 million less capex of $222 million, and the company guided fiscal 2026 capex to 2.5%-3.25% of sales.
Subsequent to year-end, TransDigm closed the $757 million Simmonds Precision acquisition in October 2025, and the board authorized an additional $5 billion of share repurchases in November 2025. For investors, the key trade-off is high financial leverage and shareholder-return policy against operating strength.
Management emphasizes its value-driven strategy and selective acquisitions, while the risk factors flag customer concentration (top ten customers about 40% of sales), defense budget exposure, fixed-price contract risk, and significant goodwill and intangibles ($14.1 billion combined, about 61% of total assets). Investors should weigh these against the company's sustained margin expansion and cash generation, with credit and covenant headroom becoming a more important consideration after the recapitalization-style dividends.
02—Key points
Key Highlights
- Net sales grew 11.2% to $8,831 million in fiscal 2025, with organic growth of 7.7% and $276 million from acquisitions, led by defense (Power & Control +15.0%) and commercial aftermarket demand.
- Gross margin expanded about 130 basis points to 60.1%, and income from operations increased 18% to $4,165 million (47.2% of sales), reflecting the value-driven operating strategy and higher volume absorption.
- Net income attributable to TD Group rose to $2,074 million and diluted EPS to $32.08 from $25.62, though EPS is reduced by $208 million of dividend equivalents paid on vested options.
- Total debt increased to about $30.0 billion from $24.9 billion, and the company funded $9.6 billion of dividends and dividend equivalents, including a $90 per share special dividend in September 2025, resulting in a stockholders' deficit of $(9.7) billion.
- Interest expense-net rose 22% to $1,572 million, and the weighted-average cash interest rate on borrowings was about 6.3%; approximately 75% of gross debt is fixed-rate, with swaps and collars hedging the variable-rate term loans.
- Operating cash flow was $2,038 million (flat year over year), with cash on hand declining to $2.8 billion; the company also has $3.7 billion of cash liquidity including the revolver.
- Subsequent events include the $757 million Simmonds Precision acquisition (closed October 6, 2025), an additional $100 million of October buybacks, and a new $5 billion share repurchase authorization in November 2025.
03—One dollar
Follow one dollar
Of each $1.00 of revenue in FY2025, TransDigm Group kept $0.23.
- Revenue$8.83B100.0%
- Cost of revenue−$3.52B39.9%
- Gross profit$5.31B60.1%
- Operating costs−$1.15B13.0%
- Operating income$4.17B47.2%
- Interest, other & tax−$2.09B23.7%
- Net income$2.07B23.5%
Where FY2025 revenue went
$8.83B- Cost of revenue: $3.52B, 40% of revenue
- Interest, other & tax: $2.09B, 24% of revenue
- Net income: $2.07B, 23% of revenue
- R&D: $118.0M, 1.3% of revenue
- SG&A: $945.0M, 11% of revenue
- Other operating costs: $83.0M, 0.9% of revenue
Kept 23% as net incomeR&D $118.0M · 1.3%Other operating costs $83.0M · 0.9%
Full revenue history →04—Financials
Financial Highlights
Figures from 10-KFY2025filed November 12, 2025Financial Statements
FY2025 against FY2024
| Line item | FY2025FY2024 | Change |
|---|---|---|
| Revenue | $8.83B$7.94B | +11.2% |
| Cost of Revenue | $3.52B$3.27B | +7.7% |
| Gross Profit | $5.31B$4.67B | +13.7% |
| R&D Expenses | $118.00M$107.00M | +10.3% |
| SG&A Expenses | $945.00M$980.00M | −3.6% |
| Operating Income | $4.17B$3.53B | +18.0% |
| Net Income | $2.07B$1.71B | +21.0% |
| EPS (Basic) | $32.08$25.62 | +25.2% |
| EPS (Diluted) | $32.08$25.62 | +25.2% |
| Shares Outstanding (Basic) | 58.20M57.80M | +0.7% |
| Shares Outstanding (Diluted) | 58.20M57.80M | +0.7% |
05—Questions
Frequently Asked Questions
Why did TransDigm's debt and stockholders' deficit increase so much in fiscal 2025?
The company raised about $11 billion of debt financing in fiscal 2025, including $5 billion in August 2025 used to fund the $90 per share special dividend, which was paid in September 2025 with dividend equivalents totaling about $5.2 billion. Total debt rose to about $30.0 billion from $24.9 billion. Because these special distributions are charged against retained earnings, accumulated deficit grew and the total stockholders' deficit widened to $(9.7) billion from $(6.3) billion.
How concentrated is TransDigm's customer base and revenue?
No single customer accounted for 10% or more of net sales in fiscal 2025, but the top ten customers together represented about 40%. Revenue is split roughly into defense (about 35%-40%), commercial aftermarket (30%-35%), and commercial OEM (25%-30%). Most aftermarket business is not under long-term contracts, and many OEM contracts can be terminated on short notice, so volume is not guaranteed.
What are the main risks from TransDigm's leverage and the dividend policy?
Debt service consumes a large share of cash flow, with interest expense of $1.57 billion against operating cash flow of $2.04 billion. Variable-rate exposure is partly hedged, and a one-point rise in rates would add about $57 million of annual interest. The credit agreement and indentures restrict dividends and buybacks, and a covenant breach could accelerate debt. The company does not plan regular dividends, so special dividends remain at the discretion of the board and are limited by debt covenants.
What drove the improvement in TransDigm's profitability and is it likely to continue?
Gross margin rose to 60.1% from 58.8%, driven by the value-driven operating strategy (pricing of engineered products, cost controls) and fixed overhead spread over higher production volume. Selling and administrative expenses fell as a share of sales, partly because non-cash stock compensation dropped. Continuation depends on sustained aftermarket demand, flight hour growth, and defense spending; the 10-K notes that OEM production rates remain below pre-pandemic levels and that defense sales are sensitive to budget timing.
What should investors know about intangible assets and acquisitions?
Goodwill of $10.6 billion and identifiable intangibles of $3.5 billion together represent about 61% of total assets, so impairment would be a material risk if performance weakened. TransDigm grows partly through acquisitions (95 businesses since 1993), with about $413 million spent in fiscal 2025 and a further $757 million Simmonds deal closed in October 2025. The company's own filing notes that acquisitions can dilute margins, add debt, and produce integration costs.
06—Continue