13G Filing: Deerfield Management Reveals 5% Stake in Newly-Public Editas Medicine, Inc. (EDIT)

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Page 12 of 13 SEC Filing

 
Exhibit A
 
Joint Filing Agreement
 
The undersigned agree that this Schedule 13G, and all amendments thereto, relating to the Common Stock, $0.0001 par value per share of Editas Medicine, Inc. shall be filed on behalf of the undersigned.
 
 
DEERFIELD MGMT HIF, L.P.
By:  J.E. Flynn Capital HIF, 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 MGMT III, L.P.
By: J.E. Flynn Capital III, LLC, General Partner
 
By: /s/ Jonathan Isler
       Jonathan Isler, Attorney-In-Fact
 
 
DEERFIELD HEALTHCARE INNOVATIONS FUND, L.P.
By:  Deerfield Mgmt HIF, L.P., General Partner
By:  J.E. Flynn Capital HIF, 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
 
 
JAMES E. FLYNN
 
/s/ Jonathan Isler
Jonathan Isler, Attorney-In-Fact
 

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