---
schema_version: "secwatch.filing_event.v1"
accession: "0001257640-22-000016"
form_type: "8-K"
ticker: "KRO"
cik: "0001257640"
company_name: "KRONOS WORLDWIDE INC"
filed_at: "2022-12-16T23:59:59+00:00"
generated_at: "2026-06-21T03:10:59.584889+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Kronos: Vice Chair Graham to retire Dec 31; Simmons named successor; Dir Gouveia resigns

## Summary
- Vice Chairman Robert Graham retires Dec 31, 2022; leaves board and officer roles at Kronos and affiliates but stays at parent Contran.
- Michael S. Simmons, EVP Finance, elected director and vice chairman effective Jan 1, 2023; also named president/CEO of parent Contran.
- Director R. Colin Gouveia resigns Dec 13, 2022 to become CEO of Rogers Corp; resignation unrelated to any disagreement.

## SEC filing metadata
- accession: 0001257640-22-000016
- form_type: 8-K
- ticker: KRO
- cik: 0001257640
- company_name: KRONOS WORLDWIDE 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/1257640/000125764022000016/0001257640-22-000016-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1257640/000125764022000016/kro-20221212x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001257640-22-000016
- JSON: https://secwatch.observer/filing/0001257640-22-000016.json
- Plain text: https://secwatch.observer/filing/0001257640-22-000016.txt

## Key facts
- Executive change
  Michael S. Simmons was elected as director and vice chairman of the board at KRONOS WORLDWIDE INC.
  - Action: elected
  - Role: director and 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/1257640/000125764022000016/0001257640-22-000016-index.htm
- Executive change
  Robert D. Graham retired as vice chairman of the board at KRONOS WORLDWIDE INC.
  - Action: retired
  - Role: vice chairman of the board
  source text: 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/1257640/000125764022000016/0001257640-22-000016-index.htm
- Executive change
  R. Colin Gouveia resigned as member of the board of directors at KRONOS WORLDWIDE 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/1257640/000125764022000016/0001257640-22-000016-index.htm

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