X0609 4 2026-09-18 false 0001260221 TransDigm Group INC TDG 0001299926 Graff Michael false 102 PRINCE STREET FLOOR 5 NEW YORK NY 10012 true false false false false Common Stock 2026-09-18 4 A false 34.00 1085.00 A 1717.00 D Common Stock 5096.00 I By Trust Common Stock 7000.00 I By trusts Receipt of stock in lieu of payment of semi-annual director fee, based on fair market value in accordance with the Director Share Plan. The shares reported in Column Five are held by The 2012 Carol Ostrow GST Trust created by the reporting person's spouse for the benefit of their children (the "Spouse Trust"). These shares are held by certain trusts created for the benefit of the reporting person's children and for which the reporting person is trustee. /s/ Rachel L. Quinlan as attorney in fact for Michael Graff 2026-09-21