X0306 4 2022-02-15 0 0001260221 TransDigm Group INC TDG 0001352573 Howley W Nicholas 1301 EAST NINTH STREET SUITE 3000 CLEVELAND OH 44114 1 0 0 0 Common Stock 2022-02-15 4 M 0 11500 130.09 A 33047.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Common Stock 2022-02-15 4 S 0 100 636.08 D 32947.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Common Stock 2022-02-15 4 S 0 100 638.855 D 32847.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Common Stock 2022-02-15 4 S 0 142 640.5132 D 32705.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Common Stock 2022-02-15 4 S 0 364 642.1173 D 32341.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Common Stock 2022-02-15 4 S 0 881 643.3198 D 31460.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Common Stock 2022-02-15 4 S 0 1224 644.322 D 30236.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Common Stock 2022-02-15 4 S 0 1523 645.1509 D 28713.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Common Stock 2022-02-15 4 S 0 1622 646.4217 D 27091.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Common Stock 2022-02-15 4 S 0 1997 647.4687 D 25094.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Common Stock 2022-02-15 4 S 0 1785 648.6661 D 23309.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Common Stock 2022-02-15 4 S 0 1749 649.4166 D 21560.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Common Stock 2022-02-15 4 S 0 13 650.1265 D 21547.513 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Stock Option 130.09 2022-02-15 4 M 0 11500 0.00 D 2016-09-30 2022-11-19 Common Stock 11500 92000 I W. Nicholas Howley Family Trust u/a/d 4/23/99 Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $640.305 - $640.605. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $641.795 - $642.645. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $642.795 - $643.700. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $643.855 - $644.850. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $644.865 - $645.860. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $645.865 - $646.830. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $647.065 - $647.980. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $648.070 - $649.065. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $649.100 - $650.090. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. Price reported constitutes the average weighted price of shares sold. Shares were sold at varying prices in the range of $650.115 - $650.140. The reporting person hereby undertakes, upon request of the Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. All transactions reported hereunder were made pursuant to an established 10B5-1 plan. Halle Martin as Attorney in fact for W Nicholas Howley. 2022-02-16