Changes in Beneficial Ownership · 4

PLAINS GP HOLDINGS LP

PAGPNASDAQEQUITYCurrent

Changes in Beneficial Ownership

Filed Oct 2, 2026Accepted Oct 2, 2026, 2:13 PM EDTFiling CIK 1581990Accession 0001581990-26-000049

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Structured filing — 4

form4.xml

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Filing details

Report period: 2026-09-30
Issuer: PLAINS GP HOLDINGS LP
Issuer CIK: 0001581990
Trading symbol: PAGP

Reporting owner 1

Name: McGee Richard K.
Reporting owner CIK: 0001490023
Relationship: Officer
Officer title: EVP, General Counsel & Sec.
Address: 333 CLAY STREET, SUITE 1600, HOUSTON, TX, 77002

Derivative transactions

Derivative transactions · 1 reported row
Security	Conversion / exercise price (USD)	Transaction date	Code	Amount	A / D	Price (USD)	Exercisable	Expires	Underlying security	Underlying shares	Owned after	Ownership
Class A Units/Class B Shares	0	2026-09-30	G · Form 4^[F1]	120,000	D	0	^[F2]	^[F2]	Class A Shares	120,000	294,607	D

Table key

G · Form 4: Bona fide gift
D: Direct

Footnotes

F1: On September 30, 2026, Reporting Person made a gift of 30,000 Class A Units of Plains AAP, L.P. ("AAP") and Class B shares of Plains GP Holdings, L.P. ("PAGP") to each of his four children, for a total gift of 120,000 units.↩ 1
F2: Pursuant to the limited partnership agreement of AAP, the Class A Units of AAP, together with a like number of Class B Shares of PAGP, may be exchanged for Class A shares of PAGP on a one-for-one basis with the approval of the Reporting Person.↩ 1 ↩ 2

Signature 1

Signed: /s/ Ann F. Gullion, as attorney-in-fact for Reporting Person
Date: 2026-10-02

Company context

PAA is a publicly traded master limited partnership that owns and operates midstream energy infrastructure and provides logistics services for crude oil. PAA owns an extensive network of pipeline gathering and transportation systems, in addition to terminaling, storage, and other infrastructure assets serving key producing basins, transportation corridors and major market hubs and export outlets in the United States and Canada.

Current securities

PAGPNASDAQ · EQUITY · Current

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