Latest revenue
$2.54B
as of 2026-03-28
Latest net income
$535.0M
as of 2026-03-28
Net margin
21.0%
as of 2026-03-28
Price · 5Y
Live market
delayed ≤15 min- Market cap
- $67.88B
- Enterprise value
- $95.13B
- P/E (trailing)
- 32.7×
- Forward P/E
- —
- P/B
- —
- Dividend yield
- 7.4%
- 52-wk high
- $1623.83
- 52-wk low
- $1123.61
- Beta
- —
- Shares out
- 55.9M
5-year trend
What this company does
TransDigm designs and manufactures highly engineered aircraft components—pumps, valves, actuators, ignition systems, cockpit controls—used on nearly every commercial and military airframe flying today. The bulk of revenue comes from high-margin aftermarket sales of proprietary spare parts, where sole-source positions let it command pricing power on a roughly $29 billion debt load. The company is back in deal mode, deploying $907 million on acquisitions this quarter and signing another agreement in January 2026 for Jet Parts Engineering and Victor Sierra after last year's massive special dividend.
Generated from TDG's filing dated 2026-05-05
Key risks
- Massive leverage: $29.2B long-term debt against $9.3B stockholders' deficit; quarterly interest expense jumped 26% YoY to $475M.
- Interest burden eroding earnings: EPS fell to $6.62 from $7.62 YoY despite 14% sales growth, as interest consumed 83% of operating income.
- Aggressive M&A continues: $907M spent on acquisitions in Q1 plus pending Jet Parts Engineering/Victor Sierra deals, pressuring $2.5B cash balance.
Generated from TDG's filing dated 2026-05-05
Profitability
Gross margin
60.1%
2.2%Operating margin
47.2%
6.1%Net margin
23.5%
8.8%Return on equity
-21.4%
21.4%Return on assets
9.1%
35.1%Leverage
Debt / equity
-3.37×
33.6%Long-term debt / equity
-3.01×
22.0%Debt / assets
142.3%
14.2%Earnings tracker
| Quarter | Revenue | YoY | Net income | YoY | Net margin |
|---|---|---|---|---|---|
Q1 2026 2026-03-28 | $2.54B | +18.3% | $535.0M | +11.7% | 21.0% |
Q4 2025 2025-12-27 | $2.29B | +13.9% | $445.0M | -9.7% | 19.5% |
Q3 2025 2025-09-30 | $2.44B | +11.5% | $610.0M | +30.3% | 25.0% |
Q2 2025 2025-06-28 | $2.24B | +9.3% | $492.0M | +6.7% | 22.0% |
Q1 2025 2025-03-29 | $2.15B | +12.0% | $479.0M | +18.9% | 22.3% |
Q4 2024 2024-12-28 | $2.01B | +12.1% | $493.0M | +29.1% | 24.6% |
Q3 2024 2024-09-30 | $2.19B | — | $468.0M | — | 21.4% |
Q2 2024 2024-06-29 | $2.05B | +17.3% | $461.0M | +31.3% | 22.5% |
Year-over-year change vs the same fiscal quarter one year prior. Revenue + net income sourced from SEC 10-Q / 10-K filings — no analyst-consensus dependency.
Industry trend
Aircraft Parts & Auxiliary Equipment, NEC · SIC 3728
Your notes
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Insider activity
Insider buying
$3.8M
Insider selling
$526.9M
Net activity
−$523.1M
Distinct insiders
8
Open-market trades over the last 365 days.
Recent transactions
Source: SEC Form 4 filings. Officers, directors, and 10%+ owners must disclose share transactions within two business days. RSU grants and tax-withholding rows are excluded by default — compensation activity is not a trading signal.
Who owns TDG
Institutional value
$40.21B
Total shares held
35.2M
Distinct holders
762
As of
2026-03-31
Filers with $100M+ AUM disclose holdings 45 days after quarter end.
Top institutional holders
| # | Manager | Shares | Value | QoQ change | Action |
|---|---|---|---|---|---|
| 1 | Capital International Investors | 5.5M | $6.37B | — | New |
| 2 | Capital World Investors | 4.7M | $5.41B | — | New |
| 3 | BlackRock, Inc. | 4.6M | $5.33B | — | New |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 3.7M | $4.25B | — | New |
| 5 | Capital Research Global Investors | 3.1M | $3.64B | — | New |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.6M | $2.98B | — | New |
| 7 | PRINCIPAL FINANCIAL GROUP INC | 2.0M | $2.33B | — | New |
| 8 | UBS Group AG | 509.7K | $590.7M | — | New |
| 9 | Invesco Ltd. | 434.6K | $503.7M | — | New |
| 10 | PRIMECAP MANAGEMENT CO/CA/ | 410.2K | $475.4M | — | New |
| 11 | Bank of New York Mellon Corp | 320.7K | $371.7M | — | New |
| 12 | VANGUARD FIDUCIARY TRUST CO | 319.0K | $369.7M | — | New |
| 13 | Legal & General Group Plc | 282.6K | $327.5M | — | New |
| 14 | Temasek Holdings (Private) Ltd | 218.9K | $253.7M | — | New |
| 15 | CIBC Bancorp USA Inc. | 201.5K | $233.7M | — | New |
| 16 | DEUTSCHE BANK AG\ | 192.7K | $223.3M | — | New |
| 17 | Vulcan Value Partners, LLC | 184.2K | $213.5M | — | New |
| 18 | Sumitomo Mitsui Trust Group, Inc. | 180.2K | $208.8M | — | New |
| 19 | BLAIR WILLIAM & CO/IL | 166.2K | $192.7M | — | New |
| 20 | Swiss National Bank | 165.3K | $191.6M | — | New |
Source: SEC Form 13F-HR. Positions aggregated across sub-managers within each firm. Options (puts/calls) excluded — common stock only.
Top questions investors are asking
- 1
Interest expense jumped 26% to $475M while EPS fell to $6.62 from $7.62—what's the path to EPS growth without another special dividend?
- 2
With $29.2B long-term debt against negative $9.3B equity, what's your refinancing strategy as rates stay elevated and 2026-2028 maturities approach?
- 3
You spent $907M on acquisitions this quarter—which targets, what multiples paid, and what synergies justify them versus your historical 20%+ IRR threshold?
Refreshed when TDG files a new report · last from 2026-05-05