Exhibit 99
Joint Filer Information
Names: | Deerfield Mgmt III, L.P., Deerfield Mgmt, L.P., Deerfield Management Company, L.P., Deerfield Private Design Fund III, L.P., Deerfield Special Situations Fund, L.P. |
Address: |
780 Third Avenue, 37th Floor New York, NY 10017 |
Designated Filer: | James E. Flynn |
Issuer and Ticker Symbol: | Rhythm Pharmaceuticals, Inc. [RYTM] |
Date of Event Requiring Statement: | October 10, 2017 |
The undersigned, Deerfield Mgmt III, L.P., Deerfield Mgmt, L.P., Deerfield Management Company, L.P. , Deerfield Private Design Fund III, L.P. and Deerfield Special Situations Fund, L.P. are jointly filing the attached Statement of Changes in Beneficial Ownership on Form 4 with James E. Flynn with respect to the beneficial ownership of securities of Rhythm Pharmaceuticals, Inc.
Signatures:
DEERFIELD MGMT, L.P. By: J.E. Flynn Capital, LLC, General Partner
By: /s/ Jonathan Isler Jonathan Isler, Attorney-In-Fact |
DEERFIELD MGMT III, L.P. By: J.E. Flynn Capital III, LLC, General Partner
By: /s/ Jonathan Isler Jonathan Isler, Attorney-In-Fact |
DEERFIELD MANAGEMENT COMPANY, L.P. By: Flynn Management LLC, General Partner
By: /s/ Jonathan Isler Jonathan Isler, Attorney-In-Fact |
DEERFIELD PRIVATE DESIGN FUND III, L.P. By: Deerfield Mgmt III, L.P., General Partner By: J.E. Flynn Capital III, LLC, General Partner
By: /s/ Jonathan Isler Jonathan Isler, Attorney-In-Fact |
DEERFIELD SPECIAL SITUATIONS FUND, L.P. By: Deerfield Mgmt, L.P., General Partner By: J.E. Flynn Capital, LLC, General Partner
By: /s/ Jonathan Isler Jonathan Isler, Attorney-In-Fact |