X0202 4 2008-01-02 0 0001260221 TransDigm Group INC TDG 0001352573 Howley W Nicholas 1301 EAST NINTH STREET SUITE 3710 CLEVELAND OH 44114 0 1 0 0 Chief Executive Officer Common Stock 2008-01-02 4 S 0 14 44.81 D 3347 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 28 44.82 D 3319 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 14 44.83 D 3305 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 56 44.84 D 3249 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 77 44.85 D 3172 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 70 44.86 D 3102 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 167 44.87 D 2935 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 70 44.88 D 2865 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 56 44.90 D 2809 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 14 44.905 D 2795 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 56 44.91 D 2739 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 28 44.915 D 2711 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 28 44.92 D 2683 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 84 44.93 D 2599 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 50 44.94 D 2549 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 56 44.945 D 2493 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 56 44.95 D 2437 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 14 44.955 D 2423 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 126 44.96 D 2297 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 42 44.965 D 2255 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 98 44.97 D 2157 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 238 44.98 D 1919 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 28 44.985 D 1891 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 112 44.99 D 1779 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 14 44.995 D 1765 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 14 44.9975 D 1751 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 295 45.00 D 1456 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 56 45.005 D 1400 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 168 45.01 D 1232 I Bratenahl Investments, Ltd. Common Stock 2008-01-02 4 S 0 154 45.02 D 1078 I Bratenahl Investments, Ltd. All transactions reported hereunder made pursuant to an established 10b5-1 plan. Halle Fine Terrion as attorney-in-fact for W. Nicholas Howley 2008-01-03