X0306 4 2013-09-24 0000920465 LA JOLLA PHARMACEUTICAL CO LJPC 0001495521 Zarrabian Saiid 4370 LA JOLLA VILLAGE DRIVE SUITE 400 SAN DIEGO CA 92122 1 0 0 0 Common Stock 2013-09-24 4 D 0 10360892 D 1480442 D Common Stock 2013-09-24 4 A 0 3981146 A 5461588 D Stock Option (Right to Buy) .06 2013-09-24 4 D 0 18907498 D 2022-04-10 Common Stock 18907498 0 D On September 24, 2013, the Issuer cancelled, pursuant to the Restricted Stock Purchase agreement entered into and between the Issuer and the Reporting Person on September 24, 2013, an option for 18,907,498 shares and Restrictcd Stock Units ("RSUs") representing 10,360,892 shares granted to the Reporting Person on April 10, 2012. In exchange for the forfeiture of the option and the RSUs, the Reporting Person received 3,981,146 shares of restricted Common Stock. The cancelled option provided for vesting with respect to one-quarter of the underlying shares on each of April 20, 2012, July 20, 2012, October 20, 2012 and January 20, 2013. /s/ Said Zarrabian 2013-10-09