TransDigm Group INC — Director's Dealing 2025

Feb 18, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TransDigm Group INC (TDG)
CIK: 0001260221
Period of Report: 2025-02-14

Reporting Person: SMALL ROBERT J (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-02-14	Common Stock	M	3650	$97.84	Acquired	19189	Direct
2025-02-14	Common Stock	S	33	$1300.05	Disposed	19156	Direct
2025-02-14	Common Stock	S	402	$1302.1999	Disposed	18754	Direct
2025-02-14	Common Stock	S	300	$1302.77	Disposed	18454	Direct
2025-02-14	Common Stock	S	100	$1306.6148	Disposed	18354	Direct
2025-02-14	Common Stock	S	1	$1308.97	Disposed	18353	Direct
2025-02-14	Common Stock	S	80	$1313.22	Disposed	18273	Direct
2025-02-14	Common Stock	S	201	$1318.2583	Disposed	18072	Direct
2025-02-14	Common Stock	S	100	$1322.46	Disposed	17972	Direct
2025-02-14	Common Stock	S	200	$1323.76	Disposed	17772	Direct
2025-02-14	Common Stock	S	72	$1325	Disposed	17700	Direct
2025-02-14	Common Stock	S	1503	$1329.4212	Disposed	16197	Direct
2025-02-14	Common Stock	S	579	$1331.0624	Disposed	15618	Direct
2025-02-14	Common Stock	S	7	$1335.09	Disposed	15611	Direct
2025-02-14	Common Stock	S	72	$1336.7233	Disposed	15539	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-02-14	Stock Option	$97.84	M	3650	Disposed	2025-11-06	Common Stock (3650)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	567323	Indirect
Common Stock	100962	Indirect
Common Stock	60246	Indirect

Footnotes

F1: The exercise price has been adjusted for dividends declared since August 1, 2022.

F2: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,301.71 - $1,302.69. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F3: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,302.71 - $1,302.80. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F4: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,306.4950 - $1,306.7150. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F5: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,317.4150 - $1,318.2750. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F6: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,329.34 - $1,330.00. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F7: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,330.69 - $1,331.23. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F8: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,335.00 - $1,335.21. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F9: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $1,336.00 - $1,336.84. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F10: 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 Stockbridge Partners LLC ("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.

F11: Represents shares held by SP on behalf of a managed account over which it has shared voting and sole dispositive power. 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.

F12: Represents shares of Common Stock beneficially owned by certain family trusts. The Reporting Person's immediate family members are beneficiaries of such family trusts.