13G Filing: Armistice Capital and Tandem Diabetes Care Inc (TNDM)

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Page 9 of 9 – SEC Filing

Exhibit A

AGREEMENT

The undersigned
agree that this Schedule 13G dated October 23, 2017 relating to the Common Stock, par value $0.001 per share, of Tandem Diabetes
Care, Inc. shall be filed on behalf of the undersigned.

Armistice Capital, LLC
By:  /s/ Steven Boyd
Steven Boyd
Managing Member
Armistice Capital Master Fund Ltd.
By:  /s/ Steven Boyd
Steven Boyd
Director
/s/ Steven Boyd
Steven Boyd

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