Person profile

Public information reviewed
Portrait of Warner L. Baxter

Warner L. Baxter

Board role

Director · WEC Energy Group (NYSE: WEC)

Board role

Independent Director · Quanta Services (NYSE: PWR)

Board role

Independent Director · US BANCORP DE (NYSE: USB-PS)

Board role

Director · Ameren Illinois Co (OTC: AILIP)

WEC Energy Group (NYSE: WEC)

Director · Current mandate

Director · Board · Executive
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Reports & analysis (Check report directory)Alpha Eval
Evidence records
15
Profile ownership
Not yet claimed
Record reviewed
May 17, 2026
View evidence

Structured intelligence coverage

Structured records are temporarily unavailable. The published profile and its source ledger remain accessible.

Identity checks do not refresh the age of governance evidence. Open a record for its source date and review state.

Profile

Identity, professional record and current appointments.

Overview

Professional record at a glance

A concise summary of information supported by the cited public sources. Missing information is treated as unknown, not as a negative finding.

Current roles
44 current organizations shown on this profile
Board positions
44 supported by public sources, 0 supplied by the profile owner
Committee roles
6Roles supported by the sources cited on this profile
Qualifications
Not establishedNo qualification is currently confirmed by the cited sources

Professional narrative

About

Retired Executive Chairman of Ameren Corporation, a Fortune 500 energy company. Held significant leadership roles in electric and gas utilities and served as chair of both the Edison Electric Institute and Electric Power Research Institute. Currently serves on boards of U.S. Bancorp and Quanta Services, Inc.

Sources are shown with the information they support.

Current roles

Appointments & responsibilities

Board appointments

Director

Ameren Illinois Co (OTC: AILIP)

Jan 1, 1999 – Present

Independence: Not independent

Source effective: 2004-03-23 · Observed: 2026-04-24T20:13:02.773+00:00

confirmedView source

Governance

Board appointments, committee responsibilities and disclosed relationships.

Committee appointments across companies · Temporarily unavailable

Structured records for this section are unavailable. This does not establish that no records exist. Published profile sources remain in Evidence & History.

Board and advisory record

Board service

Sources are shown with each role, education record, or credential.

Director

WEC Energy Group

2025-01-01 · current

Confirmed by public sourceView source

Independent Director

Quanta Services

2024-01-01 · current

Confirmed by public sourceView source

Independent Director

US BANCORP DE

2015-01-01 · current

Confirmed by public sourceView source

Director

Ameren Illinois Co

1999-01-01 · current

Confirmed by public sourceView source

Connections

Explore the roles, education and affiliations published in this record.

Ameren Illinois Co

A linked Registry profile is not available in this record.

Director at Ameren Illinois Co

1999-01-01 → End not stated

current · source reported

Observed: 2026-09-25

Ameren Illinois CoAmeren Illinois CoQuanta ServicesQuanta ServicesUS BANCORP DEUS BANCORP DEWEC Energy GroupWEC Energy GroupWarner L. Baxter

Dashed lines mark past roles. Select a connection to see its dates and sources.

Relationship map

Connected through the public record

Direct relationships from verified facts and published résumé records. Private connections are excluded.

Direct public links only

Only published affiliations are shown here. Private relationships require authorized access.

Experience

Career history, education, credentials and public contributions.

Published record

Featured coverage

Selected publications and public sources used to establish this profile. Inclusion records provenance; it is not an endorsement.

Source 1 · Sec FilingPWR DEF 14A director slateSupports Board role, Committee assignments.Open sourceSource 2 · Sec FilingWEC DEF 14A director slateSupports AI and ML experience, Board role, Committee assignments, Cybersecurity experience, Technology background.Open sourceSource 3 · Sec FilingU.S. Bancorp director board sourceSupports Board membership, Committee assignments, Director since, Board independence.Open sourceSource 4 · Sec FilingQuanta Services, Inc. director board sourceSupports Board membership, Committee assignments, Board independence.Open sourceSource 5 · Sec FilingWEC Energy Group, Inc. director board sourceSupports Board membership, Board independence.Open sourceSource 6 · Sec FilingAILLP DEF 14A director slateSupports Board role, Committee assignments, Executive company, Executive title.Open source

Basis

Identifiers, sources, dates and record limitations.

Identifiers

Alpha ID
alpha:person:warner-l-baxter
Record version
public-0

Published evidence records

15 evidence records, matching Agent View. Records may refer to different locations or observations in the same document. This count is not a count of independent corroborating sources.

  1. PWR DEF 14A director slate

    sec filing · Source published: Apr 10, 2026 · Retrieved: May 16, 2026

    Supports 2 claims
    • Board role: Board role: Director · Claim reviewed: Jul 28, 2026
    • Committee assignments: Committee assignments: Audit, Governance and Nominating, Safety, Operations and Risk · Claim reviewed: May 16, 2026

  2. Open source

    sec proxy · Source published: Apr 10, 2026 · Retrieved: May 3, 2026

    Supports 1 claim
    • Professional Role: Independent Director at Quanta Services · Claim reviewed: May 17, 2026

  3. WEC DEF 14A director slate

    sec filing · Source published: Mar 26, 2026 · Retrieved: May 17, 2026

    Supports 5 claims
    • AI and ML experience: AI and ML experience: not identified in the cited filing · Claim reviewed: May 17, 2026
    • Board role: Board role: Director · Claim reviewed: Jul 28, 2026
    • Committee assignments: Committee assignments: Audit and Oversight · Claim reviewed: May 17, 2026
    • Cybersecurity experience: Cybersecurity experience: not identified in the cited filing · Claim reviewed: May 17, 2026
    • Technology background: Technology background: not identified in the cited filing · Claim reviewed: May 17, 2026

  4. Open source

    sec proxy · Source published: Mar 26, 2026 · Retrieved: May 10, 2026

    Supports 1 claim
    • Professional Role: Director at WEC Energy Group · Claim reviewed: May 17, 2026

  5. U.S. Bancorp director board source

    sec filing · Source published: Mar 10, 2026 · Retrieved: May 3, 2026

    Supports 7 claims
    • Board independence: Independent director · Claim reviewed: May 3, 2026
    • Board membership: Serves on the board of Ameren Illinois Co · Claim reviewed: May 3, 2026
    • Board membership: Serves on the board of Quanta Services, Inc. · Claim reviewed: May 3, 2026
    • Board membership: Serves on the board of U.S. Bancorp · Claim reviewed: May 3, 2026
    • Board membership: Serves on the board of US BANCORP DE · Claim reviewed: May 3, 2026
    • Board membership: Serves on the board of WEC Energy Group, Inc. · Claim reviewed: May 3, 2026
    • Committee assignments: No committee assignment disclosed in the cited filing · Claim reviewed: May 3, 2026

  6. USB DEF 14A director slate

    sec filing · Source published: Mar 10, 2026 · Retrieved: Apr 30, 2026

    Supports 2 claims
    • Board role: Board role: Director · Claim reviewed: Jul 28, 2026
    • Committee assignments: Committee assignments: Audit, Compensation, Executive · Claim reviewed: Apr 30, 2026

  7. Open source

    sec proxy · Source published: Mar 10, 2026 · Retrieved: Mar 23, 2026

    Supports 1 claim
    • Professional Role: Independent Director at US BANCORP DE · Claim reviewed: May 17, 2026

  8. Quanta Services, Inc. director board source

    sec filing · Source published: Apr 11, 2025 · Retrieved: May 3, 2026

    Supports 3 claims
    • Board independence: Independent director · Claim reviewed: May 3, 2026
    • Board membership: Serves on the board of Quanta Services, Inc. · Claim reviewed: May 3, 2026
    • Committee assignments: No committee assignment disclosed in the cited filing · Claim reviewed: May 3, 2026

  9. WEC Energy Group, Inc. director board source

    sec filing · Source published: Mar 27, 2025 · Retrieved: May 3, 2026

    Supports 2 claims
    • Board independence: Independent director · Claim reviewed: May 3, 2026
    • Board membership: Serves on the board of WEC Energy Group, Inc. · Claim reviewed: May 3, 2026

  10. AILLP DEF 14A director slate

    sec filing · Source published: Mar 23, 2004 · Retrieved: Jul 28, 2026

    Supports 4 claims
    • Board role: Board role: Director · Claim reviewed: Jul 28, 2026
    • Committee assignments: Committee assignments: Executive · Claim reviewed: Jul 28, 2026
    • Executive company: Executive at Central Illinois Public Service Company, Ameren, UE, AEG, Ameren Services, CILCORP, CILCO · Claim reviewed: May 15, 2026
    • Executive title: Executive title: Executive Vice President and Chief Financial Officer · Claim reviewed: May 15, 2026

  11. Open source

    sec proxy · Source published: Mar 23, 2004 · Retrieved: Apr 24, 2026

    Supports 1 claim
    • Professional Role: Director at Ameren Illinois Co · Claim reviewed: May 17, 2026

  12. Open source

    public source · Source published: Date unavailable · Retrieved: Date unavailable

    Supports 1 claim
    • Board membership: Serves on the board of WEC Energy Group, Inc. · Claim reviewed: May 3, 2026

  13. Open source

    public source · Source published: Date unavailable · Retrieved: Date unavailable

    Supports 1 claim
    • Board membership: Serves on the board of Quanta Services, Inc. · Claim reviewed: May 3, 2026

  14. Open source

    public source · Source published: Date unavailable · Retrieved: Date unavailable

    Supports 1 claim
    • Board membership: Serves on the board of US BANCORP DE · Claim reviewed: May 3, 2026

  15. Open source

    public source · Source published: Date unavailable · Retrieved: Date unavailable

    Supports 1 claim
    • Board membership: Serves on the board of Ameren Illinois Co · Claim reviewed: May 3, 2026

Sources

Sources and published information

Each item links to the public source used to support it. When sources disagree, the item is clearly marked for review.

AI and ML experience · Source reportedAI and ML experience: not identified in the cited filing1 source
Verification
Source reported
Confidence
72%
Last reviewed
May 17, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 17, 2026

Board independence · CorroboratedIndependent directorSupported by 3 public records3 sources
Verification
Corroborated
Confidence
95%
Last reviewed
May 3, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 3, 2026

  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 3, 2026

  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 3, 2026

Board membership · CorroboratedServes on the board of Ameren Illinois CoSupported by 2 public records2 sources
Verification
Corroborated
Confidence
95%
Last reviewed
May 3, 2026
Board membership · CorroboratedServes on the board of Quanta Services, Inc.Supported by 3 public records3 sources
Verification
Corroborated
Confidence
95%
Last reviewed
May 3, 2026
Board membership · Source reportedServes on the board of U.S. BancorpSupported by 2 public records1 source
Verification
Source reported
Confidence
95%
Last reviewed
May 3, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 3, 2026

Board membership · CorroboratedServes on the board of US BANCORP DESupported by 2 public records2 sources
Verification
Corroborated
Confidence
95%
Last reviewed
May 3, 2026
Board membership · CorroboratedServes on the board of WEC Energy Group, Inc.Supported by 3 public records3 sources
Verification
Corroborated
Confidence
95%
Last reviewed
May 3, 2026
Board role · CorroboratedBoard role: DirectorSupported by 4 public records4 sources
Verification
Corroborated
Confidence
92%
Last reviewed
Jul 28, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 17, 2026

  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed Apr 30, 2026

  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed Jul 28, 2026

Committee assignments · CorroboratedNo committee assignment disclosed in the cited filingSupported by 2 public records2 sources
Verification
Corroborated
Confidence
95%
Last reviewed
May 3, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 3, 2026

  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 3, 2026

Committee assignments · Source reportedCommittee assignments: Audit and Oversight1 source
Verification
Source reported
Confidence
88%
Last reviewed
May 17, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 17, 2026

Committee assignments · Source reportedCommittee assignments: Audit, Compensation, Executive1 source
Verification
Source reported
Confidence
88%
Last reviewed
Apr 30, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed Apr 30, 2026

Committee assignments · Source reportedCommittee assignments: Audit, Governance and Nominating, Safety, Operations and Risk1 source
Verification
Source reported
Confidence
88%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Committee assignments · Source reportedCommittee assignments: Executive1 source
Verification
Source reported
Confidence
88%
Last reviewed
Jul 28, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed Jul 28, 2026

Cybersecurity experience · Source reportedCybersecurity experience: not identified in the cited filing1 source
Verification
Source reported
Confidence
72%
Last reviewed
May 17, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 17, 2026

Executive company · Source reportedExecutive at Central Illinois Public Service Company, Ameren, UE, AEG, Ameren Services, CILCORP, CILCO1 source
Verification
Source reported
Confidence
85%
Last reviewed
May 15, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed Jul 28, 2026

Executive title · Source reportedExecutive title: Executive Vice President and Chief Financial Officer1 source
Verification
Source reported
Confidence
85%
Last reviewed
May 15, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed Jul 28, 2026

Technology background · Source reportedTechnology background: not identified in the cited filing1 source
Verification
Source reported
Confidence
72%
Last reviewed
May 17, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 17, 2026

View all sources15 records
  1. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

    Supports: Board role · Committee assignments

  2. https://www.sec.gov/Archives/edgar/data/1050915/000119312526150293/d118470ddef14a.htm

    Sec Proxy · Tier not stated · Reviewed May 3, 2026

    Supports: Independent Director at Quanta Services (NYSE: PWR)

  3. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 17, 2026

    Supports: AI and ML experience · Board role · Committee assignments · Cybersecurity experience · Technology background

  4. https://www.sec.gov/Archives/edgar/data/783325/000078332526000035/wec-20260324.htm

    Sec Proxy · Tier not stated · Reviewed May 10, 2026

    Supports: Director at WEC Energy Group (NYSE: WEC)

  5. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 3, 2026

    Supports: Board membership · Committee assignments · Director since · Board independence

  6. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed Apr 30, 2026

    Supports: Board role · Committee assignments

  7. https://www.sec.gov/Archives/edgar/data/36104/000110465926025844/tm261379-1_def14a.htm

    Sec Proxy · Tier not stated · Reviewed Mar 23, 2026

    Supports: Independent Director at US BANCORP DE (NYSE: USB-PS)

  8. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 3, 2026

    Supports: Board membership · Committee assignments · Board independence

  9. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 3, 2026

    Supports: Board membership · Board independence

  10. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed Jul 28, 2026

    Supports: Board role · Committee assignments · Executive company · Executive title

  11. https://www.sec.gov/Archives/edgar/data/18654/000119312504047100/ddef14a.htm

    Sec Proxy · Tier not stated · Reviewed Apr 24, 2026

    Supports: Director at Ameren Illinois Co (OTC: AILIP)

  12. https://www.sec.gov/Archives/edgar/data/783325/000078332526000035/wec-20260324.htm

    Public Source · Tier not stated · Reviewed Not stated

    Supports: Board membership

  13. https://www.sec.gov/Archives/edgar/data/1050915/000119312526150293/d118470ddef14a.htm

    Public Source · Tier not stated · Reviewed Not stated

    Supports: Board membership

  14. https://www.sec.gov/Archives/edgar/data/36104/000110465926025844/tm261379-1_def14a.htm

    Public Source · Tier not stated · Reviewed Not stated

    Supports: Board membership

  15. https://www.sec.gov/Archives/edgar/data/18654/000119312504047100/ddef14a.htm

    Public Source · Tier not stated · Reviewed Not stated

    Supports: Board membership