EX-99.A 2 ss35105_ex99a.htm JOINT FILING AGREEMENT
 
Exhibit A

JOINT FILING AGREEMENT

The undersigned hereby agree that the Statement on this Schedule 13D, dated April 10, 2008 (the “Schedule 13D”), with respect to the Common Stock, par value $.001 per share, of Insulet Corporation is filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities and Exchange Act of 1934, as amended, and that this Agreement shall be included as an Exhibit to this Schedule 13D.  Each of the undersigned agrees to be responsible for the timely filing of the Schedule 13D, and for the completeness and accuracy of the information concerning itself contained therein.  This Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument.

IN WITNESS WHEREOF, the undersigned have executed this Agreement as of the 10th day of April, 2008.
 
 
OrbiMed Advisors LLC
 
     
 
By: /s/ Samuel D. Isaly
 
 
Name: Samuel D. Isaly
 
 
Title: Managing Partner
 
     
     
 
OrbiMed Capital GP II LLC
 
     
 
By: /s/ Samuel D. Isaly
 
 
Name: Samuel D. Isaly
 
 
Title: Managing Partner
 
     
     
     
 
By: /s/ Samuel D. Isaly
 
 
Name: Samuel D. Isaly