TransDigm Group INC — Director's Dealing 2011

Dec 9, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TransDigm Group INC (TDG)
CIK: 0001260221
Period of Report: 2011-12-07

Reporting Person: Rodriguez Albert J (Exec. V.P., Mergers & Aquis.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-12-07	Common Stock	M	6982	$6.68	Acquired	6982	Direct
2011-12-07	Common Stock	S	3435	$94.3432	Disposed	3547	Direct
2011-12-07	Common Stock	S	3547	$95.0358	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-12-07	Stock Option	$6.68	M	6982	Disposed	2013-08-05	Common Stock (6982)	Direct

Footnotes

F1: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $93.74 - $94.73. 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 $94.75 - $95.38. 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.