X0609 4 2026-11-03 false 0001260221 TransDigm Group INC TDG 0001656109 Reiss Joel false 1350 EUCLID AVE SUITE 1600 CLEVELAND OH 44115 false true false false Co-Chief Operating Officer false Stock Option 1208.04 2026-11-03 4 A false 19250.00 0.00 A 2036-11-03 Common Stock 19250.00 19250.00 D 7,600 options are exercisable at 20% per year over five years beginning September 30, 2027, subject to achievement of annual operating performance targets each year. 11,650 options are exercisable in two equal installments on September 30, 2030, and September 30, 2031, subject to achievement of annual operating performance targets each year. /s/ Rachel L. Quinlan as attorney in fact for Joel Reiss 2026-11-05