TransDigm designs and manufactures proprietary, highly engineered aircraft components for commercial and military aerospace markets, generating significant aftermarket parts revenue.
| Filer | 13FScore | This quarter | Shares | Value | % of their book |
|---|---|---|---|---|---|
| Daniel Loeb / Third Point | 42 | New buy | 25,000 | $28,974,000 | 1.4% |
| Ancora | 42 | Added +3% | 6,268 | $7,264,461 | 0.2% |
| Stockbridge Partners LLC (auto-surfaced) | 61 | Holds (flat) | 434,281 | $503,314,308 | 12.2% |
| Linonia Partnership LP (auto-surfaced) | 52 | Holds (flat) | 11,022 | $12,774,057 | 0.2% |
| ALTAROCK PARTNERS LP (auto-surfaced) | 65 | Trimmed -6% | 909,168 | $1,053,689,345 | 25.5% |
| WINDACRE PARTNERSHIP LLC (auto-surfaced) | 71 | Trimmed -10% | 509,600 | $590,606,016 | 6.3% |
| Bridgewater | 55 | Trimmed -58% | 2,323 | $2,692,264 | 0.0% |
| Filed | Insider | Role | Shares | Value | |
|---|---|---|---|---|---|
| 2026-02-09 | Lisman Michael | director+officer | 950 | $1,220,047 | Form 4 |
| Trade date | Who | Type | Amount | |
|---|---|---|---|---|
| 2026-05-22 | April McClain Delaney MD06 | BUY | $1,001 - $15,000 | PTR |
| 2026-05-21 | April McClain Delaney MD06 | BUY | $1,001 - $15,000 | PTR |
| 2026-05-13 | April McClain Delaney MD06 | BUY | $1,001 - $15,000 | PTR |
| 2026-05-08 | April McClain Delaney MD06 | BUY | $1,001 - $15,000 | PTR |
| 2026-05-07 | April McClain Delaney MD06 | BUY | $1,001 - $15,000 | PTR |
| 2026-04-29 | April McClain Delaney MD06 | BUY | $1,001 - $15,000 | PTR |
| 2026-04-20 | April McClain Delaney MD06 | BUY | $1,001 - $15,000 | PTR |
| 2026-04-17 | April McClain Delaney MD06 | BUY | $1,001 - $15,000 | PTR |
| 2026-04-16 | April McClain Delaney MD06 | BUY | $15,001 - $50,000 | PTR |
| 2026-04-15 | April McClain Delaney MD06 | BUY | $1,001 - $15,000 | PTR |
| 2026-03-27 | Alan Armstrong senate | BUY | $1,001 - $15,000 | PTR |
| 2026-03-25 | Gilbert Cisneros CA31 | SELL | $1,001 - $15,000 | PTR |
| 2026-03-16 | Gilbert Cisneros CA31 | BUY | $1,001 - $15,000 | PTR |
| 2026-01-30 | Gilbert Cisneros CA31 | BUY | $1,001 - $15,000 | PTR |
| 2025-12-24 | Gilbert Cisneros CA31 | SELL | $1,001 - $15,000 | PTR |
| Trade date | Who | Type | Amount | |
|---|---|---|---|---|
| 2026-07-01 | Trump, Donald J President | SELL | $100,001 - $250,000 | PTR |
| 2026-07-01 | Trump, Donald J President | SELL | $1,001 - $15,000 | PTR |
| 2026-07-01 | Trump, Donald J President | BUY | $1,001 - $15,000 | PTR |
| 2026-07-01 | Trump, Donald J President | BUY | $1,001 - $15,000 | PTR |
| 2026-07-01 | Trump, Donald J President | BUY | $100,001 - $250,000 | PTR |
| 2026-07-01 | Trump, Donald J President | SELL | $1,000,001 - $5,000,000 | PTR |
| 2026-07-01 | Trump, Donald J President | BUY | $50,001 - $100,000 | PTR |
| 2026-05-14 | Trump, Donald J President | BUY | $1,001 - $15,000 | PTR |
| 2026-05-14 | Trump, Donald J President | BUY | $100,001 - $250,000 | PTR |
| 2026-05-14 | Trump, Donald J President | BUY | $1,001 - $15,000 | PTR |
| 2026-05-14 | Trump, Donald J President | BUY | $1,001 - $15,000 | PTR |
| 2026-05-14 | Trump, Donald J President | BUY | $1,000,001 - $5,000,000 | PTR |
| 2026-05-14 | Trump, Donald J President | BUY | $50,001 - $100,000 | PTR |
Every tracked holder of this name, sorted new → added → flat → trimmed. Shares = reported 13F share count; Value as reported (a few managers file values in $thousands). Generated 2026-07-20.