ROBERT SMALL - 09 Dec 2025 Form 4 Insider Report for TransDigm Group INC (TDG)

Role
Director
Signature
/s/ Robert J. Small
Issuer symbol
TDG
Transactions as of
09 Dec 2025
Transactions value $
-$121,487,741
Form type
4
Filing time
09 Dec 2025, 21:09:55 UTC
Previous filing
06 Nov 2025
Next filing
11 Dec 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
SMALL ROBERT J Director C/O BERKSHIRE PARTNERS LLC, 200 CLARENDON STREET, 35TH FLOOR, BOSTON /s/ Robert J. Small 09 Dec 2025 0001234544

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction TDG Common Stock Sale -$101M -75.7K -17.13% $1,335.72 366K 09 Dec 2025 By Stockbridge Fund, L.P. F1
transaction TDG Common Stock Sale -$20.4M -15.3K -18.32% $1,335.72 68.1K 09 Dec 2025 By Stockbridge Partners LLC F2
holding TDG Common Stock 60.2K 09 Dec 2025 By Family Trusts F3
holding TDG Common Stock 5.63K 09 Dec 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents shares held by Stockbridge Fund, L.P. ("SF"). Berkshire Partners Holdings LLC ("BPH") is the general partner of BPSP, L.P. ("BPSP"), which is the managing member of SP, the registered investment adviser to SF. Stockbridge Associates LLC ("SA") is the general partner of SF. The Reporting Person is a managing member of each of BPH, BPSP, SP and SA. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SF. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.
F2 Represents shares held by Stockbridge Partners LLC ("SP") on behalf of a managed account over which it has shared voting and sole dispositive power. This Form 4 has been filed because the Reporting Person is a director of the Issuer and a managing member of SP. As such, the Reporting Person may be deemed to share voting and dispositive power with respect to the shares of the Issuer's common stock held by SP. However, the Reporting Person disclaims beneficial ownership of these shares, except to the extent, if any, of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purposes.
F3 Represents shares of Common Stock beneficially owned by certain family trusts. The Reporting Person's immediate family members are beneficiaries of such family trusts.