---
schema_version: "secwatch.filing_event.v1"
accession: "0001071739-21-000193"
form_type: "8-K"
ticker: "CNC"
cik: "0001071739"
company_name: "CENTENE CORP"
filed_at: "2021-09-07T23:59:59+00:00"
generated_at: "2026-06-29T05:24:37.278669+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Centene appoints Sarah London as Vice Chairman, Brent Layton as President and COO

## Summary
- Sarah London appointed Vice Chairman of Board; also elected to Board as Class III director, effective Sept 7, 2021.
- Brent Layton appointed President and COO; both report to Chairman/CEO Michael Neidorff.
- London's roles: oversight of Health Care Enterprises, technology, digitalization, strategy, compliance, risk management.
- Layton's roles: oversight of markets, products, marketing, medical management, international, business development.
- Board size increased from 12 to 13; Office of the President renamed Office of the Chairman and CEO.

## SEC filing metadata
- accession: 0001071739-21-000193
- form_type: 8-K
- ticker: CNC
- cik: 0001071739
- company_name: CENTENE CORP
- filed_at: 2021-09-07T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 5.03, 7.01, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1071739/000107173921000193/0001071739-21-000193-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1071739/000107173921000193/cnc-20210907.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001071739-21-000193
- JSON: https://secwatch.observer/filing/0001071739-21-000193.json
- Plain text: https://secwatch.observer/filing/0001071739-21-000193.txt

## Key facts
- Executive change
  Brent D. Layton was elected as President and Chief Operating Officer at CENTENE CORP.
  - Action: elected
  - Role: President and Chief Operating Officer
  source text: Brent D. Layton as the Company’s President and Chief Operating Officer
  evidence_url: https://www.sec.gov/Archives/edgar/data/1071739/000107173921000193/0001071739-21-000193-index.htm
- Executive change
  Sarah M. London was appointed as Class III director at CENTENE CORP.
  - Action: appointed
  - Role: Class III director
  source text: Ms. London was appointed to serve on the Company’s Board of Directors.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1071739/000107173921000193/0001071739-21-000193-index.htm
- Executive change
  Sarah M. London was elected as Vice Chairman at CENTENE CORP.
  - Action: elected
  - Role: Vice Chairman
  source text: elected Sarah M. London as Vice Chairman of the Board of Directors of Centene Corporation
  evidence_url: https://www.sec.gov/Archives/edgar/data/1071739/000107173921000193/0001071739-21-000193-index.htm

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