X0202 4 2008-02-01 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 2008-02-01 4 S 0 14 41.93 D 2358 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 14 41.94 D 2344 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 14 41.945 D 2330 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 28 41.95 D 2302 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 28 41.96 D 2274 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 14 42.00 D 2260 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 13 42.05 D 2247 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 27 42.065 D 2220 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 27 42.08 D 2193 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 13 42.18 D 2180 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 13 42.19 D 2167 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 28 42.22 D 2139 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 27 42.23 D 2112 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 28 42.24 D 2084 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 28 42.25 D 2056 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 14 42.253 D 2042 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 28 42.27 D 2014 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 56 42.28 D 1958 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 14 42.284 D 1944 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 28 42.29 D 1916 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 14 42.31 D 1902 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 14 42.32 D 1888 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 28 42.33 D 1860 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 84 42.34 D 1776 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 14 42.341 D 1762 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 14 42.35 D 1748 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 13 42.355 D 1735 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 13 42.464 D 1722 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 28 42.47 D 1694 I Bratenahl Investments, Ltd. Common Stock 2008-02-01 4 S 0 14 42.48 D 1680 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 2008-02-04