Transdigm Group (TDG) Held by Superinvestors
TRANSDIGM GROUP INC (TDG) is currently held by 8 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $1.75B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
AltaRock Partners is currently the largest disclosed institutional shareholder of TDG tracked by InsiderSet, reporting ownership valued at approximately $1.17B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $970.33M, representing an estimated loss of -16.82% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed TDG value among the investors covered in this analysis. Major shareholders include AltaRock Partners, Vulcan Value Partners, Triple Frond Partners, and several other long-term asset managers with concentrated positions in TRANSDIGM GROUP INC (TDG).
This page ranks the largest institutional TDG shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| AltaRock Partners | Mark Massey | 27.51% | 875,755 | $1,166,540,690 | $970,327,782 | -$196,212,908 | -16.82% |
| Vulcan Value Partners | C.T. Fitzpatrick | 6.91% | 170,429 | $227,018,245 | $188,833,628 | -$38,184,617 | -16.82% |
| Triple Frond Partners | Stuart Mclaughlin | 12.67% | 106,544 | $141,921,000 | $118,049,687 | -$23,871,313 | -16.82% |
| Third Point | Daniel Loeb | 2.26% | 79,000 | $105,231,160 | $87,531,210 | -$17,699,950 | -16.82% |
| Lone Pine Capital | Stephen Mandel | 0.23% | 28,532 | $38,005,765 | $31,613,171 | -$6,392,594 | -16.82% |
| Renaissance Technologies LLC | Jim Simons | 0.05% | 25,620 | $34,126,865 | $28,386,704 | -$5,740,161 | -16.82% |
| Oakcliff Capital Partners | Bryan R. Lawrence | 11.99% | 24,170 | $32,195,407 | $26,780,118 | -$5,415,289 | -16.82% |
| Sequoia Financial Advisors | 0.05% | 6,803 | $9,061,631 | $7,537,656 | -$1,523,975 | -16.82% |
Frequently asked questions about TDG
Who are the largest superinvestors holding TDG?
The largest superinvestors holding TDG in the latest SEC Form 13F filings include AltaRock Partners, Vulcan Value Partners, Triple Frond Partners, Third Point, and Lone Pine Capital. InsiderSet ranks these superinvestors by their latest reported TDG position.
What does the TDG superinvestors page include?
This page tracks TDG positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. TRANSDIGM GROUP INC (TDG) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold TDG?
InsiderSet currently tracks 8 superinvestors reporting TDG holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own TDG.
How much TDG stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $1.75B in TDG holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were TDG superinvestor holdings last updated?
The latest TDG superinvestor holdings on InsiderSet are based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time holdings.
Are superinvestor TDG holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its TDG position after the reporting date.
Are superinvestors buying or selling TDG?
Buying and selling can be analyzed by comparing TDG positions across consecutive 13F reporting periods. InsiderSet's TDG Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View TDG ownership changes.
How have superinvestor TDG holdings changed over time?
InsiderSet tracks TDG holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.