TransDigm Group INC — Director's Dealing 2015

May 14, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TransDigm Group INC (TDG)
CIK: 0001260221
Period of Report: 2015-05-14

Reporting Person: Palmer Peter (Executive Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-05-14	Common Stock	M	11000	$27.08	Acquired	15000	Direct
2015-05-14	Common Stock	S	11000	$229.0779	Disposed	4000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-05-14	Stock Option	$27.08	M	11000	Disposed	2018-11-17	Common Stock (11000)	Direct

Footnotes

F1: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $228.79 - $229.46. 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.