Exhibit A
Joint Filing Statement
I, the undersigned, hereby express my agreement that the attached Schedule 13D (and any amendments thereto) relating to the beneficial ownership by the undersigned of the equity securities of Rhythm Pharmaceuticals, Inc. is filed on behalf of each of the undersigned.
| Date: | February 4, 2020 | |
| MPM BIOVENTURES V GP LLC | ||
| By: | MPM BioVentures V LLC, | |
| its Managing Member | ||
| By: | /s/ Todd Foley | |
| Name: | Todd Foley | |
| Title: | Member | |
| MPM BIOVENTURES V LLC | ||
| By: | /s/ Todd Foley | |
| Name: | Todd Foley | |
| Title: | Member | |
| MPM BIOVENTURES V, L.P. | ||
| By: | MPM BioVentures V GP LLC, its General Partner | |
| By: | MPM BioVentures V LLC, its Managing Member | |
| By: | /s/ Todd Foley | |
| Name: | Todd Foley | |
| Title: | Member | |
| MPM ASSET MANAGEMENT INVESTORS BV5 LLC | ||
| By: | /s/ Howard Rubin | |
| Name: | Howard Rubin | |
| Title: | Authorized Signatory | |
| By: | /s/ Todd Foley | |
| Name: | Todd Foley | |
| By: | /s/ Luke Evnin | |
| Name: | Luke Evnin | |
| By: | /s/ Ansbert Gadicke | |
| Name: | Ansbert Gadicke | |
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