TransDigm Group INC — Director's Dealing 2010

Apr 1, 2010

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: TransDigm Group INC (TDG)
CIK: 0001260221
Period of Report: 2010-03-23

Reporting Person: SMALL ROBERT J (Director)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	4183562	Indirect
Common Stock	103500	Indirect

Footnotes

F1: These shares are beneficially owned by or through certain affiliated investment entities, including direct ownership by Berkshire Fund VII, L.P., Berkshire Fund VII-A, L.P., Berkshire Investors LLC, Berkshire Investors III LLC and Stockbridge Fund, L.P. The Reporting Person disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein.

F2: The Reporting Person disclaims beneficial ownership of these shares except to the extent of his pecuniary interest in the shares.