X0306 4 2013-05-28 0001269021 PORTOLA PHARMACEUTICALS INC PTLA 0001250409 BIRD JEFFREY W 755 PAGE MILL ROAD, SUITE A-200 PALO ALTO CA 94304-1005 1 Common Stock 2013-05-28 4 C 0 16669.0000 0 A 16669.0000 I By Ltd Partnership (NEST) Common Stock 2013-05-28 4 C 0 12344.0000 0 A 29013.0000 I By Ltd Partnership (NEST) Common Stock 2013-05-28 4 C 0 7589.0000 0 A 36602.0000 I By Ltd Partnership (NEST) Common Stock 2013-05-28 4 C 0 568711.0000 0 A 568711.0000 I By Ltd Partnership (SHV) Common Stock 2013-05-28 4 C 0 260105.0000 0 A 828816.0000 I By Ltd Partnership (SHV) Common Stock 2013-05-28 4 C 0 208190.0000 0 A 1037006.0000 I By Ltd Partnership (SHV) Common Stock 2013-05-28 4 C 0 65818.0000 0 A 1102824.0000 I By Ltd Partnership (SHV) Common Stock 2013-05-28 4 C 0 20927.0000 0 A 20927.0000 I By Trust (Trustees) Common Stock 2013-05-28 4 C 0 6346.0000 0 A 27273.0000 I By Trust (Trustees) Common Stock 2013-05-28 4 C 0 4958.0000 0 A 32231.0000 I By Trust (Trustees) Common Stock 2013-05-28 4 C 0 4368.0000 0 A 36599.0000 I By Trust (Trustees) Series A Convertible Preferred Stock 2013-05-28 4 C 0 16669.0000 0.0000 D Common Stock 16669.0000 0.0000 I By Ltd Partnership (NEST) Series B Convertible Preferred Stock 2013-05-28 4 C 0 7589.0000 0.0000 D Common Stock 7589.0000 0.0000 I By Ltd Partnership (NEST) Series C Convertible Preferred Stock 2013-05-28 4 C 0 12344.0000 0.0000 D Common Stock 12344.0000 0.0000 I By Ltd Partnership (NEST) Series A Convertible Preferred Stock 2013-05-28 4 C 0 568711.0000 0.0000 D Common Stock 568711.0000 0.0000 I By Ltd Partnership (SHV) Series B Convertible Preferred Stock 2013-05-28 4 C 0 208190.0000 0.0000 D Common Stock 208190.0000 0.0000 I By Ltd Partnership (SHV) Series C Convertible Preferred Stock 2013-05-28 4 C 0 260105.0000 0.0000 D Common Stock 260105.0000 0.0000 I By Ltd Partnership (SHV) Series D Convertible Preferred Stock 2013-05-28 4 C 0 65818.0000 0.0000 D Common Stock 65818.0000 0.0000 I By Ltd Partnership (SHV) Series A Convertible Preferred Stock 2013-05-28 4 C 0 20927.0000 0.0000 D Common Stock 20927.0000 0.0000 I By Trust (Trustees) Series B Convertible Preferred Stock 2013-05-28 4 C 0 6346.0000 0.0000 D Common Stock 6346.0000 0.0000 I By Trust (Trustees) Series C Convertible Preferred Stock 2013-05-28 4 C 0 4958.0000 0.0000 D Common Stock 4958.0000 0.0000 I By Trust (Trustees) Series D Convertible Preferred Stock 2013-05-28 4 C 0 4368.0000 0.0000 D Common Stock 4368.0000 0.0000 I By Trust (Trustees) Upon the closing of the Issuer's initial public offering, each share of Series A Preferred Stock automatically converted into 1 share of Common Stock for no additional consideration and had no expiration date. Shares held by a limited partnership of which the reporting person is a trustee of a trust which is the General Partner. The reporting person disclaims beneficial ownership of these shares except as to the reporting person's pecuniary interest therein. Upon the closing of the Issuer's initial public offering, each share of Series C Preferred Stock automatically converted into 1 share of Common Stock for no additional consideration and had no expiration date. Upon the closing of the Issuer's initial public offering, each share of Series B Preferred Stock automatically converted into 1 share of Common Stock for no additional consideration and had no expiration date. Shares held by Sutter Hills Ventures, A California Limited Partnership. The reporting person is a Managing Director of the General Partner of Sutter Hill Ventures, A California Limited Partnership. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest in the partnership. Upon the closing of the Issuer's initial public offering, each share of Series D Preferred Stock automatically converted into 1 share of Common Stock for no additional consideration and had no expiration date. Shares held by a trust of which the reporting person is a trustee. The reporting person disclaims beneficial ownership in these shares except as to the reporting person's pecuniary interest in the trust. The shares do not have an expiration date. /s/ Jeffrey W. Bird 2013-05-30