X0206 3 2016-06-02 0 0001485003 Eleven Biotherapeutics, Inc. EBIO 0001465837 Boxer Capital, LLC 11682 EL CAMINO REAL, SUITE 320 SAN DIEGO CA 92130 0 0 1 0 0001465836 Boxer Asset Management Inc. CAY HOUSE, EP TAYLOR DRIVE N7776 LYFORD CAY NEW PROVIDENCE C5 BAHAMAS 0 0 1 0 0001015747 LEWIS JOSEPH CAY HOUSE, EP TAYLOR DRIVE N7776 LYFORD CAY NEW PROVIDENCE C5 BAHAMAS 0 0 1 0 0001468223 MVA Investors, LLC 11682 EL CAMINO REAL, SUITE 320 SAN DIEGO CA 92130 0 0 1 0 Common Stock 2255572 D Common Stock 475000 D These securities are owned directly by Boxer Capital, LLC ("Boxer Capital"), which may be deemed to be a member of a "group" for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, consisting of (i) Boxer Capital, (ii) Boxer Asset Management Inc. ("Boxer Management"), (iii) MVA Investors, LLC ("MVA Investors") and (iv) Joseph C. Lewis (collectively, the "Boxer Group"), and indirectly by Boxer Management and Mr. Lewis, by virtue of their ownership in Boxer Capital. These securities are owned directly and solely by MVA Investors, which has sole voting and dispositive power with respect to these securities. Each member of the Boxer Group other than MVA Investors disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein. Boxer Capital, LLC, By: /s/ Aaron I. Davis, Aaron I. Davis 2016-06-06 Boxer Asset Management, Inc., By: /s/ Jefferson R. Voss, Jefferson R. Voss 2016-06-06 MVA Investors, LLC, By: /s/ Aaron I. Davis, Aaron I. Davis 2016-06-06 /s/ Joseph C. Lewis, Joseph C. Lewis 2016-06-06