X0306 4 2020-09-01 0001581990 PLAINS GP HOLDINGS LP PAGP 0001217250 PEFANIS HARRY N 333 CLAY STREET, # 1600 HOUSTON TX 77002 1 1 0 0 President & CCO Class A Shares representing limited partner interests 2020-09-01 4 M 0 1000000 0 A 1233653 D Class A Units/Class B shares/GP units 0 2020-09-01 4 M 0 1000000 0 D Class A Shares 1000000 2768988 D Pursuant to the limited partnership agreement of Plains AAP, L.P. ("AAP"), a holder of Class A Units of AAP (the "Class A Units") and Class B shares (the "Class B shares") of Plains GP Holdings, L.P. (the "Issuer"), has the right at any time (without expiration) to exchange its Class A Units, together with a like number of associated Class B shares and GP units in PAA GP Holdings LLC, if applicable, for an equal number of Class A shares of the Issuer (the "Class A shares"). On September 1, 2020, the Reporting Person exchanged 1,000,000 Class A Units and Class B shares for 1,000,000 Class A shares. /s/ Harry N. Pefanis 2020-09-02