X0306 4 2014-06-27 0 0001269021 PORTOLA PHARMACEUTICALS INC PTLA 0001252522 GALAKATOS NICHOLAS C/O MPM ASSET MANAGEMENT 200 CLARENDON STREET, 54TH FLOOR BOSTON MA 02116 1 0 0 0 Stock Option (Right to Buy) 29.19 2014-06-27 4 A 0 10000 0.00 A 2024-06-27 Common Stock 10000 10000 D The option shares shall vest as follows: 1/12th of the shares subject to such option shall vest each month after June 27, 2014, subject to Reporting Person's Continuous Service (as defined in the Issuer's Equity Incentive Plan) as of each such date. /s/ Nanci Salvucci, as attorney-in-fact 2014-06-30