13D Filing: Berkshire Partners Holdings LLC and Transdigm Group Inc (TDG)

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BERKSHIRE FUND VIII, L.P.
By:   Eighth Berkshire Associates LLC,
         its General Partner
By:    /s/ Sharlyn C. Heslam      
         Name: Sharlyn C. Heslam
        Title: Managing Director
BERKSHIRE FUND VIII-A, L.P.
By:   Eighth Berkshire Associates LLC,
        its General Partner
By:   /s/ Sharlyn C. Heslam      
         Name: Sharlyn C. Heslam
        Title: Managing Director
BERKSHIRE FUND VII, L.P.
By:
Seventh Berkshire Associates LLC,
its General Partner
By:
/s/ Sharlyn C. Heslam      
Name: Sharlyn C. Heslam
Title: Managing Director
BERKSHIRE FUND VII-A, L.P.
By:
Seventh Berkshire Associates LLC,
its General Partner
By:
/s/ Sharlyn C. Heslam      
Name: Sharlyn C. Heslam
Title: Managing Director
BERKSHIRE INVESTORS LLC
By:
/s/ Sharlyn C. Heslam      
Name: Sharlyn C. Heslam
Title: Managing Director
BERKSHIRE INVESTORS III LLC
By:
/s/ Sharlyn C. Heslam      
Name: Sharlyn C. Heslam
Title: Managing Director
BERKSHIRE INVESTORS IV LLC
By:    /s/ Sharlyn C. Heslam      
         Name: Sharlyn C. Heslam
        Title: Managing Director

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