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Feb 10, 2020 12:22PM Form SC 13G/A PORTOLA PHARMACEUTICALS Filed by: WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

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Feb 14, 2019 11:56AM Form SC 13G PORTOLA PHARMACEUTICALS Filed by: STATE STREET CORP

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Feb 6, 2019 03:05PM Form SC 13G/A PORTOLA PHARMACEUTICALS Filed by: BlackRock Inc.

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Feb 12, 2018 06:53AM Form SC 13G/A PORTOLA PHARMACEUTICALS Filed by: VANGUARD GROUP INC

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Feb 10, 2017 11:15AM Form SC 13G/A PORTOLA PHARMACEUTICALS Filed by: WELLINGTON MANAGEMENT GROUP LLP

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Sep 12, 2016 11:01AM

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Feb 11, 2016 02:24PM Form SC 13G/A PORTOLA PHARMACEUTICALS Filed by: WELLINGTON MANAGEMENT GROUP LLP

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