---
schema_version: "secwatch.filing_event.v1"
accession: "0001096343-23-000213"
form_type: "8-K"
ticker: "MKL"
cik: "0001096343"
company_name: "MARKEL GROUP INC."
filed_at: "2023-11-30T23:59:59+00:00"
generated_at: "2026-06-07T19:47:13.650309+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Markel Group President & COO Robert Cox to depart Dec 31, 2023; divisions realigned under Jeremy Noble

## Summary
- Robert Cox, President and COO Insurance Operations, will leave Markel effective December 31, 2023 after five years.
- Markel Specialty and International divisions will now report directly to Jeremy Noble, President, Insurance.
- Simon Wilson, Alex Martin, and Bryan Sanders will report to Noble effective December 31.
- Cox oversaw global insurance operations since 2018; company cites his contributions to profitable growth.

## SEC filing metadata
- accession: 0001096343-23-000213
- form_type: 8-K
- ticker: MKL
- cik: 0001096343
- company_name: MARKEL GROUP INC.
- filed_at: 2023-11-30T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1096343/000109634323000213/0001096343-23-000213-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1096343/000109634323000213/mkl-20231130.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001096343-23-000213
- JSON: https://secwatch.observer/filing/0001096343-23-000213.json
- Plain text: https://secwatch.observer/filing/0001096343-23-000213.txt

## Key facts
- Executive change
  Robert Cox departed as President and Chief Operating Officer, Insurance Operations at MARKEL GROUP INC..
  - Action: departed
  - Role: President and Chief Operating Officer, Insurance Operations
  source text: On November 30, 2023, Markel, the insurance operations within Markel Group Inc. (the Company), announced that the Company and Robert Cox, the President and Chief Operating Officer, Insurance Operations of Markel, mutually agreed on a departure date of December 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1096343/000109634323000213/0001096343-23-000213-index.htm

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