TransDigm Group INC — Director's Dealing 2012

Jan 26, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TransDigm Group INC (TDG)
CIK: 0001260221
Period of Report: 2012-01-25

Reporting Person: Laubenthal Raymond F (President and COO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-01-25	Common Stock	M	3000	$6.68	Acquired	63069	Direct
2012-01-25	Common Stock	S	1017	$100.2535	Disposed	62052	Direct
2012-01-25	Common Stock	S	1283	$101.8196	Disposed	60769	Direct
2012-01-25	Common Stock	S	700	$102.2443	Disposed	60069	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-01-25	Stock Option	$6.68	M	3000	Disposed	2013-08-05	Common Stock (3000)	Direct

Footnotes

F1: Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $99.99 - $100.90. 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 $101.18 - $102.17. 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 $102.18 - $102.34. 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.