TransDigm Group Incorporated
At today's price, TransDigm Group Incorporated (TDG) is priced for +11.3% growth. boothcheck doesn't publish a fair value or a price target; it shows what the price assumes, so you can judge whether that bar is too high. Built from SEC EDGAR filings.
• TransDigm makes proprietary, largely sole-source aerospace components, and the surprising part is the mix: the FY2025 10-K reports about ⟦"55% of our net sales in fiscal year 2025 were generated from the aftermarket"⟧, the higher-margin, more stable half of the business. • That model produces a roughly 46% operating margin and $9.50 billion in trailing revenue, but it runs on debt by design, with debt-to-equity of 3.34 and $5.29 billion in trailing dividends. [Source: FY2025 10-K] • The bigges
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1,074 institutional managers reported holding TDG in 13F filings for the quarter ended 2026-03-31. Together they hold about 89% of the company; the top 10 hold 56%. 103 opened new positions that quarter. Held by Vanguard Group, Capital Group (American Funds), BlackRock, among others. On the short side, 1.1M shares were sold short as of the 2026-06-15 count, about 2% of shares outstanding (3.4 days of typical volume to cover).
Quarterly 13F filings arrive up to 45 days after quarter end, so the picture is never current (filed through 2026-05-29). Nothing here is investment advice.
TDG's share count grew 5.8% over the past five years even with $2.13B spent on repurchases. It pays a dividend, and has paid one every year in our records (16 and counting), raised 4 years straight. Cash returned over the past three years: $11.73B in dividends and $1.22B in repurchases.
Share counts are split-adjusted; repurchase totals are gross of share issuance. Nothing here is investment advice.
Open-market insider buys at TDG over the trailing three years: 2023: 1 buy totaling $1k; 2024: 1 buy totaling $1k; 2025: 6 buys totaling $2.62M; 2026: 2 buys totaling $1.22M. 16 officers and directors are on file.
Code P open-market purchases from SEC Form 4 filings, non-derivative, excluding scheduled 10b5-1 plans. Nothing here is investment advice.
TDG's recent reports: the day-one move, then what the following quarter actually did.
| report | day one | next quarter |
|---|---|---|
| 2023-08-09 | -4.8% | -0.1% |
| 2023-11-10 | +10.9% | +4.1% |
| 2024-02-09 | -2.4% | +9.0% |
| 2024-05-08 | +1.0% | -3.2% |
Day-one is the close-to-close move around the filing. Nothing here is investment advice.
TDG's latest 8-K filings: 2026-07-13 (items 8.01); 2026-05-05 (items 2.02, 9.01); 2026-04-17 (items 1.01, 2.03, 9.01); 2026-04-15 (items 7.01); 2026-04-14 (items 2.02, 7.01).
Item codes are the SEC's own classification of what each report discloses. Nothing here is investment advice.
Last analyzed: July 11, 2026
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For informational and research purposes only. Not investment advice. Not a recommendation to buy, sell, or hold any security. boothcheck is not a registered investment adviser. Past performance does not guarantee future results.