Alpha RegistryClaim a profile
Published mark

PLAINS GP HOLDINGS LP

NASDAQ: PAGP. Canonical company identity and public leadership record.

US

Record source reportedRecord not claimedNo Eval published
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Alpha ID
alpha:company:54c48d4d-e03a-47a0-a244-19e166d02553
SEC CIK
0001581990
Record version
vpublic-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce, published Oct 16, 2026
Newest evidence
Apr 10, 2026
Monitoring
Not yet monitored Details
Integrity
Not yet signed Methodology
CEO
Willie ChiangSince Apr 10, 2026
Chair
Not published
Independent
8 / 1111 directors published
Published claims
272 distinct sources
Evidence records
40 pinned
Source conflicts
0None open

Built from 2 distinct sources and 4 evidence records. Every Claim links to where it appears. Where nothing was published, the record states the coverage gap.

CorroboratedSource reportedAlpha inferenceNot disclosed

Public record. Alpha publishes governance facts about this organization from regulatory filings and company statements. Private enterprise overlay data is never projected here. The company can claim the record, correct, or dispute any Claim. How this works

CEO CHANGED

Willie Chiang executive of PLAINS GP HOLDINGS LP, effective 2026-04-10.

EffectiveEffective Apr 10, 2026E3

Monitoring

Continuous

What the published record states about identity, evidence, evaluation, monitoring, authority, and freshness. Watched-source schedules are not published for this record.

  • Identityunclaimed
    Published
  • Evidencesource_reported
    Published
  • Evaluationnot_evaluated
    Published
  • MonitoringNot yet published for this record.
    Not published
  • AuthorityNot yet published for this record.
    Not published
  • Freshnesscurrent
    Published

Leadership

Evidence
RolePersonSinceStatusClaim
Chief Executive OfficerWillie ChiangApr 2026currentSource reportedE3

Board of directors

Evidence

11 directors published. 8 of 11 with a published determination are independent.

DirectorStatusSinceCommitteesClaim
Alexandra D. PrunerIndependent2018Audit, chairAudit · ChairSource reportedE2
Bobby S. ShackoulsIndependent2014Compensation, chairCompensation · ChairSource reportedE2
Ellen R. DeSanctisIndependent2022None publishedSource reportedE2
Greg L. ArmstrongNot independent1998None publishedSource reportedE2
Greg PetersenIndependent2001CompensationSource reportedE2
Harry N. PefanisNot independent2017None publishedSource reportedE2
John T. RaymondIndependent2013None publishedSource reportedE2
Kevin S. McCarthyIndependent2020None publishedSource reportedE2
Lawrence M. ZiembaIndependent2020None publishedSource reportedE2
Victor BurkIndependent2014None publishedSource reportedE2
Willie ChiangNot independent2017None publishedSource reportedE2
Ellen R. DeSanctisIndependence not publishedNot publishedAuditSource reportedE4
John T. RaymondIndependence not publishedNot publishedCompensationSource reportedE4
Lawrence M. ZiembaIndependence not publishedNot publishedAuditSource reportedE4
Victor BurkIndependence not publishedNot publishedAuditCompensationSource reportedE4

Committees and risk ownership

Evidence
CommitteeChairMembersRisks assigned
AuditAlexandra D. PrunerAlexandra D. Pruner, Ellen R. DeSanctis, Lawrence M. Ziemba, Victor BurkNot described in the published record
Audit · ChairNot publishedAlexandra D. PrunerNot described in the published record
CompensationBobby S. ShackoulsBobby S. Shackouls, Greg Petersen, John T. Raymond, Victor BurkNot described in the published record
Compensation · ChairNot publishedBobby S. ShackoulsNot described in the published record
Committee AppointmentAlexandra D. Pruner: chair, Audit
Source reportedE4
company:54c48d4d-e03a-47a0-a244-19e166d02553:committee_appointment:19
Committee AppointmentEllen R. DeSanctis: member, Audit
Source reportedE4
company:54c48d4d-e03a-47a0-a244-19e166d02553:committee_appointment:20
Committee AppointmentLawrence M. Ziemba: member, Audit
Source reportedE4
company:54c48d4d-e03a-47a0-a244-19e166d02553:committee_appointment:21
Committee AppointmentVictor Burk: member, Audit
Source reportedE4
company:54c48d4d-e03a-47a0-a244-19e166d02553:committee_appointment:22
Committee AppointmentBobby S. Shackouls: chair, Compensation
Source reportedE4
company:54c48d4d-e03a-47a0-a244-19e166d02553:committee_appointment:24
Committee AppointmentGreg Petersen: member, Compensation
Source reportedE4
company:54c48d4d-e03a-47a0-a244-19e166d02553:committee_appointment:25
Committee AppointmentJohn T. Raymond: member, Compensation
Source reportedE4
company:54c48d4d-e03a-47a0-a244-19e166d02553:committee_appointment:26
Committee AppointmentVictor Burk: member, Compensation
Source reportedE4
company:54c48d4d-e03a-47a0-a244-19e166d02553:committee_appointment:27

Control and voting power

Evidence

No published claims

Nothing is published for this section yet. A missing Claim is a coverage state, not a negative finding.

Authority to act

Evidence and agent registry

Who can act for the company, and on whose authority. This is what a counterparty's agent checks before it accepts an order, signs, or pays.

Principal executive officerWillie Chiang, Chief Executive Officer, from Apr 10, 2026
Source reportedE3
company:54c48d4d-e03a-47a0-a244-19e166d02553:leadership_role:17
Who can authorize an agentNot assessedNo Alpha inference about signing authority or board-reserved matters is published for this record.
Not assessed
bind
AI agents registered by the companyNot registered in the public RegistryAgent Deployments, Agent Use Cases, Authority Grants, TrustChecks, Action Ledger entries and Governance Receipts live in the private enterprise overlay. They are never projected into the public Registry without explicit cross-plane authorization. Absence here is a plane boundary, not evidence that the enterprise operates no agents.
Agent registry
agents
Delegations publishedNot disclosedBoard and officer delegation resolutions are not public filings and are not published in this record.
Search scope
delegations

Financials and market context

Evidence
Security ListingPAGP (NASDAQ)
Source reportedE1
company:54c48d4d-e03a-47a0-a244-19e166d02553:security_listing:28
Index membershipsNo current membership is published in Alpha's tracked index universe.This is not evidence that the company is absent from every market index.
None publishedAs of Oct 17, 2026. Rights-filtered public evidence only; no redistribution or model training is granted. Only source-backed memberships with an explicit public redistribution basis are returned.

Governance and policies

Evidence

No published claims

Nothing is published for this section yet. A missing Claim is a coverage state, not a negative finding.

Risk, audit, and cyber

Evidence

No published claims

Nothing is published for this section yet. A missing Claim is a coverage state, not a negative finding.

AI oversight and accountability

Evidence

No published claims

Nothing is published for this section yet. A missing Claim is a coverage state, not a negative finding.

Compensation

Evidence

No published claims

Nothing is published for this section yet. A missing Claim is a coverage state, not a negative finding.

Other published claims

Evidence

Published Claims that belong to no section above. Each keeps its permalink, evidence, and assertion state.

Legal NamePLAINS GP HOLDINGS LP
Source reportedE1
company:54c48d4d-e03a-47a0-a244-19e166d02553:legal_name:1
Entity StatusPublic listing published
Source reportedE1
company:54c48d4d-e03a-47a0-a244-19e166d02553:entity_status:3
Published FactEnergy
Source reportedE1
company:54c48d4d-e03a-47a0-a244-19e166d02553:published_fact:5

Not yet in this record

Coverage

A gap is a coverage state, not a negative finding. These sections are expected for this entity class and are not yet published.

  • Corporate structureNot reviewed. Parent, subsidiary and predecessor structure explains who is governed.
  • OwnershipNot reviewed. Ownership and voting power determine who can influence the board.
  • FinancialsNot reviewed. Governance-relevant financial context frames capital and audit decisions.
  • CompensationNot reviewed. Pay design shows how incentives are governed.
  • GovernanceNot reviewed. Governing documents and provisions set the rules of the enterprise.
  • Shareholder governanceNot reviewed. Meeting and vote records show shareholder dissent and support.
  • AuditNot reviewed. Auditor, controls and restatements show assurance over reporting.
  • LegalNot reviewed. Material legal and regulatory matters show enforcement exposure.
  • RiskNot reviewed. Risk ownership links the board, committees, executives and controls.
  • CyberNot reviewed. Cyber and data governance is a disclosed oversight domain.
  • AI governanceNot reviewed. AI oversight is a differentiated Alpha governance domain.
  • Markets externalNot reviewed. Auditors, advisors, investors and regulators form the external ecosystem.
  • Absence of a leadership role, committee, or disclosure is not evidence that it does not exist.Absence of a leadership role, committee, or disclosure is not evidence that it does not exist.
  • Only explicitly published canonical company identity and current confirmed public roles are included.Only explicitly published canonical company identity and current confirmed public roles are included.
  • Absence of a board, committee, executive, listing, or claim is not evidence that it does not exist.Absence of a board, committee, executive, listing, or claim is not evidence that it does not exist.
  • Public retrieval does not grant redistribution, model-training, direct-contact, or relationship-pathfinding rights.Public retrieval does not grant redistribution, model-training, direct-contact, or relationship-pathfinding rights.
  • This Company Profile is an identity and evidence record, not an Alpha rating.This Company Profile is an identity and evidence record, not an Alpha rating.

Subject and corrections

Public-role doctrine

This record exists because the company is in the published Registry. The company can claim the record, correct, or dispute any Claim. Corrections are versioned and the original stays in history.

Basis
Published company record built from public sources
Sources
4 evidence records cited. 0 with redistribution rights.
Never published
Private enterprise overlay data: deployments, authority grants, TrustChecks, receipts, telemetry
Record claimed
No
Open disputes
0
Identity ownership
unclaimed
Claiming not yet available

If the company claims the record, its statements appear as their own assertion state and never overwrite the cited evidence.

Evidence

Authority and rights
  1. E1
    Alpha canonical company public projection
    Alpha canonical company public projection. canonical identity. Retrieved Oct 16, 2026. Cited by 5 Claims.
    Open web
    Rights not recorded, link only
    Evidence not pinned
  2. E2
    Plains GP Holdings DEF 14A 2026-04-10
    sec proxy. Published Apr 10, 2026. Retrieved Apr 24, 2026. Cited by 11 Claims.
    Authoritative, regulatory filing
    Rights not recorded, link only
    Evidence not pinned
  3. E3
    PAGP DEF 14A executive officers
    sec filing. Published Apr 10, 2026. Retrieved May 15, 2026. Cited by 1 Claim.
    Authoritative, regulatory filing
    Rights not recorded, link only
    Evidence not pinned
  4. E4
    Audit
    board_seats. board seats. Cited by 10 Claims.
    Authoritative, regulatory filing
    Rights not recorded, link only
    Evidence not pinned

What changed in version public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce

vpublic-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce published Oct 16, 2026
  • Willie Chiang executive of PLAINS GP HOLDINGS LP, effective 2026-04-10.
  • Ellen R. DeSanctis seat on PLAINS GP HOLDINGS LP, effective 2022-01-01.
  • Kevin S. McCarthy seat on PLAINS GP HOLDINGS LP, effective 2020-01-01.
  • Lawrence M. Ziemba seat on PLAINS GP HOLDINGS LP, effective 2020-01-01.
  • Alexandra D. Pruner seat on PLAINS GP HOLDINGS LP, effective 2018-01-01.
  • Audit · Chair committee of PLAINS GP HOLDINGS LP, effective 2018-01-01.
  • Alexandra D. Pruner member of Audit · Chair, effective 2018-01-01.
  • Harry N. Pefanis seat on PLAINS GP HOLDINGS LP, effective 2017-01-01.
  • Willie Chiang seat on PLAINS GP HOLDINGS LP, effective 2017-01-01.
  • Bobby S. Shackouls seat on PLAINS GP HOLDINGS LP, effective 2014-01-01.
  • Victor Burk seat on PLAINS GP HOLDINGS LP, effective 2014-01-01.
  • Compensation · Chair committee of PLAINS GP HOLDINGS LP, effective 2014-01-01.
  • Bobby S. Shackouls member of Compensation · Chair, effective 2014-01-01.
  • John T. Raymond seat on PLAINS GP HOLDINGS LP, effective 2013-01-01.
  • Greg Petersen seat on PLAINS GP HOLDINGS LP, effective 2001-01-01.
  • Greg Petersen member of Compensation, effective 2001-01-01.
  • Greg L. Armstrong seat on PLAINS GP HOLDINGS LP, effective 1998-01-01.
Appearance

Alpha Governance PBC. The Registry records reported facts and Alpha's assessments separately. A missing fact is not evidence that it is false.

Record alpha:company:54c48d4d-e03a-47a0-a244-19e166d02553, version public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce. https://registry.alpha.ac/companies/plains-gp-holdings-lp

Navigate

On this record

  1. Overview
  2. Monitoring4
  3. Leadership1
  4. Board15
  5. Committees4
  6. Control and voting0
  7. Authority to act4
  8. Financials1
  9. Governance0
  10. Risk0
  11. AI oversight0
  12. Legal0
  13. Compensation0
  14. Other published claims4
  15. Coverage gaps17
  16. Linked people15
  17. Subject and corrections6
  18. Evidence4
  19. Version historyvpublic-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce

Linked records

Registry

Appearance

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  • Actions
    Switch to agent viewJSON, Markdown, MCP
  • Copy Alpha IDalpha:company:54c48d4d-e03a-47a0-a244-19e166d02553
  • Cite this recordPLAINS GP HOLDINGS LP
  • Copy canonical URLregistry.alpha.ac/companies/plains-gp-holdings-lp
  • Copy as MarkdownWith assertion states
  • Report an error
  • Theme: System
  • Theme: Light
  • Theme: Dark
  • Records
    PLAINS GP HOLDINGS LPCompany
  • Willie ChiangPerson
  • Alexandra D. PrunerPerson
  • Bobby S. ShackoulsPerson
  • Ellen R. DeSanctisPerson
  • Greg L. ArmstrongPerson
  • Greg PetersenPerson
  • Harry N. PefanisPerson
  • John T. RaymondPerson
  • Kevin S. McCarthyPerson
  • Lawrence M. ZiembaPerson
  • Victor BurkPerson
  • Ellen R. DeSanctisPerson
  • John T. RaymondPerson
  • Lawrence M. ZiembaPerson
  • Victor BurkPerson
  • Sections
    OverviewPLAINS GP HOLDINGS LP
  • MonitoringPLAINS GP HOLDINGS LP
  • LeadershipPLAINS GP HOLDINGS LP
  • BoardPLAINS GP HOLDINGS LP
  • CommitteesPLAINS GP HOLDINGS LP
  • Control and votingPLAINS GP HOLDINGS LP
  • Authority to actPLAINS GP HOLDINGS LP
  • FinancialsPLAINS GP HOLDINGS LP
  • GovernancePLAINS GP HOLDINGS LP
  • RiskPLAINS GP HOLDINGS LP
  • AI oversightPLAINS GP HOLDINGS LP
  • LegalPLAINS GP HOLDINGS LP
  • CompensationPLAINS GP HOLDINGS LP
  • Other published claimsPLAINS GP HOLDINGS LP
  • Coverage gapsPLAINS GP HOLDINGS LP
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Report an error

Reports attach to the Claim and go to an Alpha analyst through the correction form. Corrections are versioned, and the original stays in history.