PhaseBio Pharmaceuticals (PHASQ) SC 13G PhaseBio Pharmaceuticals / Rosalind Advisors ownership change

Exhibit A

Joint Filing Agreement

The undersigned hereby agree that this Statement on Schedule 13G with respect to the beneficial ownership of shares of Common Stock of PhaseBio Pharmaceuticals, Inc. is filed jointly, on behalf of each of them.

Rosalind Advisors, Inc.

By: /s/ Steven Salamon                                                                    

Name: Steven Salamon

Title: President

Rosalind Master Fund L.P.

By: /s/ Mike McDonald                                                                   

Name: Mike McDonald

Title: Director, Rosalind (Cayman) Ltd. (as General
Partner to Rosalind Master Fund)

By: /s/ Steven Salamon                                                                   

Name: Steven Salamon

By: /s/ Gilad Aharon                                                                       

Name: Gilad Aharon