---
schema_version: "secwatch.filing_event.v1"
accession: "0000072162-22-000015"
form_type: "8-K"
ticker: "NL"
cik: "0000072162"
company_name: "NL INDUSTRIES INC"
filed_at: "2022-12-16T23:59:59+00:00"
generated_at: "2026-06-21T03:47:42.675847+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# NL Industries announces retirement of Vice Chairman Graham and election of Simmons; director Gouveia resigns

## Summary
- Robert D. Graham retires as director and vice chairman of NL and affiliates (Valhi, Kronos, CompX) effective Dec 31, 2022; continues at Contran.
- Michael S. Simmons elected director and vice chairman of NL effective Jan 1, 2023; currently NL executive VP.
- Simmons also becomes vice chairman of Valhi, Kronos, CompX and CEO of Contran effective Jan 1, 2023.
- R. Colin Gouveia resigns from NL board effective Dec 13, 2022; no disagreement; to become Rogers Corp CEO.

## SEC filing metadata
- accession: 0000072162-22-000015
- form_type: 8-K
- ticker: NL
- cik: 0000072162
- company_name: NL INDUSTRIES INC
- filed_at: 2022-12-16T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/72162/000007216222000015/0000072162-22-000015-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/72162/000007216222000015/nl-20221212x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000072162-22-000015
- JSON: https://secwatch.observer/filing/0000072162-22-000015.json
- Plain text: https://secwatch.observer/filing/0000072162-22-000015.txt

## Key facts
- Executive change
  Robert D. Graham retired as vice chairman of the board at NL INDUSTRIES INC.
  - Action: retired
  - Role: vice chairman of the board
  source text: On December 12, 2022, Robert D. Graham, vice chairman of the board of the registrant, provided notice to the registrant of his retirement, effective as of December 31, 2022, as a director and vice chairman of the board of the registrant.
  evidence_url: https://www.sec.gov/Archives/edgar/data/72162/000007216222000015/0000072162-22-000015-index.htm
- Executive change
  Michael S. Simmons was appointed as vice chairman of the board at NL INDUSTRIES INC.
  - Action: appointed
  - Role: vice chairman of the board
  source text: the registrant's board of directors took action to elect Michael S. Simmons as a director and vice chairman of the board of the registrant, effective as of January 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/72162/000007216222000015/0000072162-22-000015-index.htm
- Executive change
  R. Colin Gouveia resigned as member of the board of directors at NL INDUSTRIES INC.
  - Action: resigned
  - Role: member of the board of directors
  source text: on December 13, 2022, R. Colin Gouveia resigned as a member of the board of directors of the registrant.
  evidence_url: https://www.sec.gov/Archives/edgar/data/72162/000007216222000015/0000072162-22-000015-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.