Exhibit A
Joint Filing Agreement
The undersigned hereby agree that this Statement on Schedule 13G/A with respect to the beneficial ownership of shares of Common Stock of Sientra, Inc. is filed jointly on behalf of each of them.
Rosalind Advisors, Inc.
By: _____________________________
Name: Steven Salamon
Title: President
Rosalind Master Fund L.P.
By: _____________________________
Name: Mike McDonald
Title: Director, Rosalind (Cayman) Ltd. (as General Partner to Rosalind Master Fund)
By: _____________________________
Name: Steven Salamon
