0000919574-23-006707.txt : 20231212 0000919574-23-006707.hdr.sgml : 20231212 20231212092437 ACCESSION NUMBER: 0000919574-23-006707 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20231212 DATE AS OF CHANGE: 20231212 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: TransDigm Group INC CENTRAL INDEX KEY: 0001260221 STANDARD INDUSTRIAL CLASSIFICATION: AIRCRAFT PART & AUXILIARY EQUIPMENT, NEC [3728] IRS NUMBER: 510484716 STATE OF INCORPORATION: DE FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-32833 FILM NUMBER: 231480141 BUSINESS ADDRESS: STREET 1: 1301 EAST 9TH STREET STREET 2: SUITE 3000 CITY: CLEVELAND STATE: OH ZIP: 44114 BUSINESS PHONE: 216 706 2960 MAIL ADDRESS: STREET 1: 1301 EAST 9TH STREET STREET 2: SUITE 3000 CITY: CLEVELAND STATE: OH ZIP: 44114 FORMER COMPANY: FORMER CONFORMED NAME: TD HOLDING CORP DATE OF NAME CHANGE: 20030818 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: Stockbridge Partners LLC CENTRAL INDEX KEY: 0001505183 IRS NUMBER: 208051585 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 BUSINESS ADDRESS: STREET 1: 200 CLARENDON STREET STREET 2: 35TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 617 227-0050 MAIL ADDRESS: STREET 1: 200 CLARENDON STREET STREET 2: 35TH FLOOR CITY: BOSTON STATE: MA ZIP: 02116 FORMER COMPANY: FORMER CONFORMED NAME: Stockbridge Partners LLC (D/B/A Stockbridge Investors) DATE OF NAME CHANGE: 20120313 FORMER COMPANY: FORMER CONFORMED NAME: Stockbridge Partners LLC DATE OF NAME CHANGE: 20101108 144 1 primary_doc.xml 144 0001505183 XXXXXXXX LIVE 0001260221 TransDigm Group INC 001-32833 1301 East 9th Street, Suite 3000 Cleveland OH 44114 216-706-2960 Stockbridge Partners LLC May be deemed affiliate. Common Stock Glen Eagle Wealth, LLC

4428-C Route 27 Kingston NJ 08528

25000 24813000.00 55314104 12/12/2023 NYSE Common Stock 04/25/2007 Open market purchases Open market purchases N 25000 04/25/2007 Cash N Stockbridge Partners LLC

200 CLARENDON STREET 35TH FLOOR BOSTON MA 02116

Common Stock 09/12/2023 2967 2612341.73 Stockbridge Partners LLC

200 CLARENDON STREET 35TH FLOOR BOSTON MA 02116

Common Stock 11/16/2023 20000 19775110.00 Stockbridge Partners LLC

200 CLARENDON STREET 35TH FLOOR BOSTON MA 02116

Common Stock 11/17/2023 46700 44713111.14 Stockbridge Partners LLC

200 CLARENDON STREET 35TH FLOOR BOSTON MA 02116

Common Stock 11/20/2023 39558 38181338.09 Stockbridge Partners LLC

200 CLARENDON STREET 35TH FLOOR BOSTON MA 02116

Common Stock 11/21/2023 23201 22503257.77 Stockbridge Partners LLC is deemed to be the beneficial owner of the Common Stock held through a separate managed account and through Stockbridge Fund, L.P. Regarding the "Securities To Be Sold" Table, the dates of acquisition and payment of the Common Stock varied, commencing on the date reported in the Table. Stockbridge Partners LLC is signing this form on behalf of the separate managed account and Stockbridge Fund, L.P. 12/12/2023 STOCKBRIDGE PARTNERS LLC, By: BPSP, L.P., its Managing Member, By: Berkshire Partners Holdings LLC, its General Partner, Kenneth S. Bring, its M.D.