EXHIBIT 1
JOINT FILING AGREEMENT
 
The undersigned hereby agree that the Statement on this Schedule 13D, dated February 21, 2018 (the “Schedule 13D”), with respect to the Common Stock, of Pieris Pharmaceuticals, Inc. is filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities 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 21st day of February 2018.
                
 
 
OrbiMed Advisors LLC
 
 
 
 
 
By:
/s/ Jonathan T. Silverstein
 
 
 
Name:
 Jonathan T. Silverstein
 
 
 
Title:
Member of OrbiMed Advisors LLC
 
 
 
 
 
 
 
By:
/s/ Sven H. Borho
 
 
 
Name:
 Sven H. Borho
 
 
 
Title:
Member of OrbiMed Advisors LLC
 
 
 
 
 
By:
/s/ Carl L. Gordon
 
 
 
Name:
 Carl L. Gordon
 
 
 
Title:
Member of OrbiMed Advisors LLC
 
 
 
 
 
 

 
OrbiMed Capital GP III LLC
 
 
 
 
 
 
By:
OrbiMed Advisors LLC
its Managing Member
 
 
 
 
 
 
 
 
 
By:
/s/ Jonathan T. Silverstein
 
 
 
Name:
 Jonathan T. Silverstein
 
 
 
Title:
Member of OrbiMed Advisors LLC
 
 
 
 
 
 
 
 
 
 
By:
/s/ Sven H. Borho
 
 
 
Name:
 Sven H. Borho
 
 
 
Title:
Member of OrbiMed Advisors LLC
 
 
 
 
 
 
 
 
 
 
 
By:
/s/ Carl L. Gordon
 
 
 
Name:
 Carl L. Gordon
 
 
 
Title:
Member of OrbiMed Advisors LLC