13G Filing: Tiger Global Management LLC and Transdigm Group Inc (TDG)

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Exhibit A

AGREEMENT

The undersigned
agree that this Schedule 13G dated March 6, 2018 relating to the Common Stock, par value $.01 per share of TransDigm
Group Incorporated shall be filed on behalf of the undersigned.

Tiger Global Management, LLC /s/ Anil L. Crasto
Signature

Anil L. Crasto
Chief Operating Officer
 
Tiger Global Performance, LLC

/s/ Anil L. Crasto
Signature

Anil L. Crasto
Chief Operating Officer

Charles P. Coleman III /s/ Charles P. Coleman III
Signature
 
Scott Shleifer /s/ Scott Shleifer
Signature

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