TransDigm Group INC — Director's Dealing 2018

May 17, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TransDigm Group INC (TDG)
CIK: 0001260221
Period of Report: 2018-05-17

Reporting Person: Jones Roger (Executive Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-17	Common Stock	M	5000	$27.08	Acquired	9000	Direct
2018-05-17	Common Stock	S	1200	$322.6917	Disposed	7800	Direct
2018-05-17	Common Stock	S	2049	$323.5503	Disposed	5751	Direct
2018-05-17	Common Stock	S	1751	$324.7822	Disposed	4000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-05-17	Stock Option	$27.08	M	5000	Disposed	2018-11-17	Common Stock (5000)	Direct

Footnotes

F1: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $322.13 - $323.12. 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.

F2: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $323.12 - $324.01. 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 $324.41 - $325.14. 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.