TransDigm Group
TDG · NYSE
Who owns TDG
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 50.8% of TDG’s shares.
- Capital International Investors9.1%
- Capital World Investors7.6%
- Vanguard Capital Management, LLC6.5%
- BlackRock Institutional Trust Company, N.A.5.6%
- Next 6 largest institutions21.9%
- All other shareholders49.2%
| Holder | Shares | % of shares |
|---|---|---|
| Capital International Investors | 5.06M | 9.05% |
| Capital World Investors | 4.27M | 7.64% |
| Vanguard Capital Management, LLC | 3.65M | 6.53% |
| BlackRock Institutional Trust Company, N.A. | 3.13M | 5.60% |
| Capital Research Global Investors | 3.12M | 5.58% |
| Vanguard Portfolio Management, LLC | 2.58M | 4.61% |
| State Street Investment Management (US) | 2.56M | 4.58% |
| Principal Global Investors (Equity) | 1.71M | 3.06% |
| Geode Capital Management, L.L.C. | 1.29M | 2.30% |
| Fidelity Management & Research Company LLC | 1.01M | 1.81% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| American Funds Fundamental Investors Fund, Inc. | 2.74M | 4.91% |
| American Funds Growth Fund of America | 2.20M | 3.94% |
| Vanguard Total Stock Market Index Fund | 1.78M | 3.18% |
| American Funds AMCAP Fund | 1.77M | 3.16% |
| Vanguard 500 Index Fund | 1.47M | 2.63% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $117.69M (273 trades) of TDG on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Reiss Joel | Option exercise | 4.10K | — |
| Reiss Joel | Sale | 438 | $497.55K |
| Reiss Joel | Sale | 495 | $561.82K |
| Reiss Joel | Sale | 317 | $359.44K |
| Reiss Joel | Sale | 210 | $237.78K |
| Reiss Joel | Sale | 130 | $147.07K |
| Reiss Joel | Sale | 100 | $113.01K |
| Reiss Joel | Sale | 150 | $169.41K |
| Reiss Joel | Sale | 120 | $135.35K |
| Reiss Joel | Sale | 305 | $343.74K |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| April DelaneyHouse | Sale | $100K–$250K | Aug 25, 2026 |
| April McClainHouse | Purchase | $1K–$15K | Apr 29, 2026 |
| April McClainHouse | Purchase | $1K–$15K | Apr 20, 2026 |
| April McClainHouse | Purchase | $1K–$15K | Apr 17, 2026 |
| April McClainHouse | Purchase | $15K–$50K | Apr 16, 2026 |
| April McClainHouse | Purchase | $1K–$15K | Apr 15, 2026 |
| Alan ArmstrongSenator | Purchase | $1K–$15K | Mar 27, 2026 |
| Gil CisnerosHouse | Sale | $1K–$15K | Dec 24, 2025 |
| Gil CisnerosHouse | Purchase | $1K–$15K | Nov 18, 2025 |
Short interest
Settled Sep 30, 2026
- Shares short
- 1.20M
- Days to cover
- 2.71
- % of shares outstanding
- 2.14%
- Average daily volume
- 442.42K
- Change since last report
- +12.4%
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