Person profile

Public information reviewed

Michael S. Simmons

Role

Vice Chairman of the Board at NL INDUSTRIES INC (NYSE: NL)

Board role

Director · VALHI INC /DE/ (NYSE: VHI)

Board role

Vice Chairman of the Board · COMPX INTERNATIONAL INC (NYSE: CIX)

Board role

Vice Chairman of the Board · KRONOS WORLDWIDE INC (NYSE: KRO)

Board role

Vice Chairman of the Board · NL INDUSTRIES INC (NYSE: NL)

VALHI INC /DE/ (NYSE: VHI)

Director · Current mandate

Executive
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Reports & analysisAlpha Eval
Public sources
12 reviewed
Profile ownership
Not yet claimed
Last reviewed
Sep 12, 2026
View sources

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

Professional narrative

About

Alpha has not published a narrative summary because the current public source set is not sufficient.

Sources are shown with the information they support.

Current roles

Appointments & responsibilities

Executive appointments

Board appointments

Governance

Board appointments, committee responsibilities and disclosed relationships.

Board and advisory record

Board service

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

Director

VALHI INC /DE/

2022-01-01 · current

Confirmed by public sourceView source

Vice Chairman of the Board

COMPX INTERNATIONAL INC

Current · start date not disclosed

Confirmed by public sourceView source

Vice Chairman of the Board

KRONOS WORLDWIDE INC

Current · start date not disclosed

Confirmed by public sourceView source

Vice Chairman of the Board

NL INDUSTRIES INC

Current · start date not disclosed

Confirmed by public sourceView source

Connections

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

COMPX INTERNATIONAL INC

Open COMPX INTERNATIONAL INC profile →

Vice Chairman of the Board at COMPX INTERNATIONAL INC

Start not stated → End not stated

current · source reported

Observed: 2026-09-15

COMPX INTERNATIONA…COMPX INTERNATIONAL INCKRONOS WORLDWIDE INCKRONOS WORLDWIDE INCNL INDUSTRIES INCNL INDUSTRIES INCVALHI INC /DE/VALHI INC /DE/Michael S. Simmons

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 FilingCIX DEF 14A executive officersSupports Executive company, Executive title.Open sourceSource 2 · Sec FilingVHI DEF 14A executive officersSupports AI and ML experience, Cybersecurity experience, Executive company, Executive title, Other Company Role, Technology background.Open sourceSource 3 · Sec FilingNL DEF 14A executive officersSupports Executive company, Executive title.Open sourceSource 4 · Sec FilingKRO DEF 14A executive officersSupports Executive company, Executive title.Open source

Basis

Identifiers, sources, dates and record limitations.

Identifiers

Alpha ID
alpha:person:michael-s-simmons
Record version
public-0

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 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Board membership · Source reportedServes on the board of COMPX INTERNATIONAL INC1 source
Verification
Source reported
Confidence
Not stated
Last reviewed
Not stated
Board membership · Source reportedServes on the board of KRONOS WORLDWIDE INC1 source
Verification
Source reported
Confidence
Not stated
Last reviewed
Not stated
Board membership · Source reportedServes on the board of NL INDUSTRIES INC1 source
Verification
Source reported
Confidence
Not stated
Last reviewed
Not stated
Board membership · Source reportedServes on the board of VALHI INC /DE/1 source
Verification
Source reported
Confidence
Not stated
Last reviewed
Not stated
Cybersecurity experience · Source reportedCybersecurity experience: not identified in the cited filing1 source
Verification
Source reported
Confidence
72%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Executive company · Source reportedExecutive at COMPX INTERNATIONAL INC1 source
Verification
Source reported
Confidence
94%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Executive company · Source reportedExecutive at KRONOS WORLDWIDE INC1 source
Verification
Source reported
Confidence
94%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Executive company · Source reportedExecutive at NL INDUSTRIES INC1 source
Verification
Source reported
Confidence
94%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Executive company · Source reportedExecutive at VALHI INC /DE/1 source
Verification
Source reported
Confidence
94%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Executive title · CorroboratedExecutive title: Vice Chairman of the BoardSupported by 3 public records3 sources
Verification
Corroborated
Confidence
94%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Executive title · Source reportedExecutive title: Vice Chairman of the Board, President and Chief Executive Officer1 source
Verification
Source reported
Confidence
94%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Other Company Role · Source reportedMichael S. Simmons is also linked to Contran Corporation as Executive officer at Contran, CompX, Kronos Worldwide, and NL.1 source
Verification
Source reported
Confidence
70%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

Technology background · Source reportedTechnology background: not identified in the cited filing1 source
Verification
Source reported
Confidence
72%
Last reviewed
May 16, 2026
  • SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

View all sources12 records
  1. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

    Supports: Executive company · Executive title

  2. https://www.sec.gov/Archives/edgar/data/1049606/000104960626000007/cix-20260520xdef14a.htm

    Sec Def 14a · Tier not stated · Reviewed Sep 6, 2026

    Supports: Vice Chairman of the Board at COMPX INTERNATIONAL INC (NYSE: CIX)

  3. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

    Supports: AI and ML experience · Cybersecurity experience · Executive company · Executive title · Other Company Role · Technology background

  4. https://www.sec.gov/Archives/edgar/data/59255/000005925526000012/vhl-20260521xdef14a.htm

    Sec Proxy · Tier not stated · Reviewed Sep 2, 2026

    Supports: Director at VALHI INC /DE/ (NYSE: VHI)

  5. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

    Supports: Executive company · Executive title

  6. https://www.sec.gov/Archives/edgar/data/72162/000007216226000018/nl-20260514xdef14a.htm

    Sec Def 14a · Tier not stated · Reviewed Sep 12, 2026

    Supports: Vice Chairman of the Board at NL INDUSTRIES INC (NYSE: NL)

  7. SEC EDGAR

    Sec Filing · Tier 3 · Reviewed May 16, 2026

    Supports: Executive company · Executive title

  8. https://www.sec.gov/Archives/edgar/data/1257640/000125764026000016/kro-20260513xdef14a.htm

    Sec Def 14a · Tier not stated · Reviewed Sep 6, 2026

    Supports: Vice Chairman of the Board at KRONOS WORLDWIDE INC (NYSE: KRO)

  9. https://www.sec.gov/Archives/edgar/data/59255/000005925526000012/vhl-20260521xdef14a.htm

    Public Source · Tier not stated · Reviewed Not stated

    Supports: Board membership

  10. https://www.sec.gov/Archives/edgar/data/1049606/000104960626000007/cix-20260520xdef14a.htm

    Public Source · Tier not stated · Reviewed Not stated

    Supports: Board membership

  11. https://www.sec.gov/Archives/edgar/data/1257640/000125764026000016/kro-20260513xdef14a.htm

    Public Source · Tier not stated · Reviewed Not stated

    Supports: Board membership

  12. https://www.sec.gov/Archives/edgar/data/72162/000007216226000018/nl-20260514xdef14a.htm

    Public Source · Tier not stated · Reviewed Not stated

    Supports: Board membership