Statement of Changes in Beneficial Ownership (4)

 

Joint Filer Information

Names:	Deerfield Mgmt, L.P., Deerfield Management Company, L.P., and 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:	XenoPort, Inc. [XNPT]
Date of Earliest Transaction Required to be Reported:	January 20, 2016

 

The undersigned, Deerfield Mgmt, L.P., Deerfield Management Company, 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 XenoPort, Inc.

 

Signatures:

DEERFIELD MGMT, L.P. By:  J.E. Flynn Capital, 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 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