PTLA Portola Pharmaceuticals Inc

Portola Pharmaceuticals, Inc.® (NASDAQ: PTLA) today announced that it will host a webcast and conference call to discuss the Company’s financial results for the quarter ended June 30, 2018, and provide a general business overview on Thursday, August 9, 2018, at 8:30 a.m. ET (5:30 a.m. PT).

Conference Call DetailsThe live conference call on Thursday, August 9, 2018, at 8:30 a.m. ET, can be accessed by phone by calling (844) 452-6828 from the United States and Canada or 1 (765) 507-2588 internationally and using the passcode 6650817. The webcast can be accessed live on the Investor Relations section of the Company's website at http://investors.portola.com. It will be archived for 30 days following the call.

About Portola Pharmaceuticals, Inc.Portola Pharmaceuticals is a commercial-stage biopharmaceutical company focused on the discovery, development and commercialization of novel therapeutics that could significantly advance the fields of thrombosis and other hematologic diseases. The Company’s two FDA-approved medicines are Bevyxxa® (betrixaban), the first and only oral, once-daily Factor Xa inhibitor for the prevention of VTE in adult patients hospitalized for an acute medical illness, and Andexxa® [coagulation factor Xa (recombinant), inactivated-zhzo], the first and only antidote for the Factor Xa inhibitors rivaroxaban and apixaban. The company also is advancing cerdulatinib, a Syk/JAK inhibitor for the treatment of hematologic cancers.

Investor Contact:Cara MillerPortola Pharmaceuticalsir@portola.com		Media Contact:Laurie MasonsonPure Communicationslmasonson@purecommunications.com