X0306 4 2016-01-04 0 0001576263 Mirati Therapeutics, Inc. MRTX 0001603577 Berkley Capital Management Ltd. C/O CAY HOUSE P.O. BOX N-7776 E.P. TAYLOR DRIVE LYFORD CAY NEW PROVIDENCE C5 BAHAMAS 0 0 1 0 0001642355 Braslyn Ltd. C/O CAY HOUSE, P.O. BOX N-7776 E.P. TAYLOR DRIVE LYFORD NEW PROVIDENCE C5 BAHAMAS 0 0 1 0 0001465836 Boxer Asset Management Inc. C/O CAY HOUSE P.O. BOX N-7776 E.P. TAYLOR DRIVE LYFORD CAY NEW PROVIDENCE C5 BAHAMAS 0 0 1 0 0001015747 LEWIS JOSEPH C/O CAY HOUSE P.O. BOX N-7776 E.P. TAYLOR DRIVE LYFORD CAY NEW PROVIDENCE C5 BAHAMAS 0 0 1 0 0001465837 Boxer Capital, LLC 440 STEVENS AVE, SUITE 100 SOLANA BEACH CA 92075 0 0 1 0 0001468223 MVA Investors, LLC 440 STEVENS AVE, SUITE 100 SOLANA BEACH CA 92075 0 0 1 0 Common Stock 2016-01-04 4 J 0 522500 0.00 D 0 D Common Stock 2023232 D Common Stock 522500 D Common Stock 429340 D On January 4, 2016, Berkley Capital Management Ltd.("Berkley Capital") transferred certain of its assets, including all of its shares of common stock of the issuer, to Braslyn for no consideration as part of an internal reorganization. These securities are owned directly by Berkley 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) Berkley Capital, (ii) Braslyn Ltd. ("Braslyn"), (iii) Boxer Capital, (iv) Boxer Asset Management Inc. ("Boxer Management"), (v) MVA Investors, LLC ("MVA Investors"), and (vi) Joe Lewis (collectively, the "Boxer Group"). Joe Lewis is the sole indirect owner of and controls Berkley Capital. These securities are owned directly by Boxer Capital, and indirectly by Boxer Management and Joe Lewis, by virtue of their ownership in Boxer Capital. These securities are owned directly by Braslyn, and indirectly by Joe Lewis. Joe Lewis is the sole indirect owner of and controls Braslyn. 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 Davis, Aaron Davis 2016-01-04 Boxer Asset Management Inc., By: /s/ Jefferson Voss, Jefferson Voss 2016-01-04 MVA Investors, LLC, By: /s/ Aaron Davis, Aaron Davis 2016-01-04 Joseph Lewis, /s/ Joseph Lewis, Joseph Lewis 2016-01-04 Berkley Capital Management Ltd., By: /s/ Jefferson R. Voss, Jefferson R. Voss 2016-01-04 Braslyn Ltd., By: /s/ Jefferson R. Voss, Jefferson R. Voss 2016-01-04