---
schema_version: "secwatch.filing_event.v1"
accession: "0001140361-22-010555"
form_type: "8-K"
ticker: "CNC"
cik: "0001071739"
company_name: "CENTENE CORP"
filed_at: "2022-03-22T23:59:59+00:00"
generated_at: "2026-06-26T20:29:46.719450+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Centene appoints Sarah London as CEO, succeeding Neidorff on medical leave

## Summary
- Sarah London appointed CEO effective March 21, 2022, replacing Michael Neidorff, who remains on medical leave from the Board.
- London had served as Vice Chairman, leading tech, digital strategy, Health Care Enterprises, and Specialty divisions.
- Acting Chairman James Dallas cited London's strategic thinking and innovative mindset as key to the decision.
- London stated commitment to leveraging Centene's scale to serve over 26 million members and create shareholder value.

## SEC filing metadata
- accession: 0001140361-22-010555
- form_type: 8-K
- ticker: CNC
- cik: 0001071739
- company_name: CENTENE CORP
- filed_at: 2022-03-22T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1071739/000114036122010555/0001140361-22-010555-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1071739/000114036122010555/brhc10035561_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001140361-22-010555
- JSON: https://secwatch.observer/filing/0001140361-22-010555.json
- Plain text: https://secwatch.observer/filing/0001140361-22-010555.txt

## Key facts
- Executive change
  Michael F. Neidorff departed as Chief Executive Officer at CENTENE CORP.
  - Role: Chief Executive Officer
  source text: On March 21, 2022, the Board of Directors (the “ Board ”) of Centene Corporation (the “ Company ”) appointed Sarah M. London, currently the Company’s Vice Chairman and member of the Office of the Chairman, to the position of Chief Executive Officer of the Company, effective immediately, succeeding of Michael F. Neidorff.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1071739/000114036122010555/0001140361-22-010555-index.htm
- Executive change
  Sarah M. London was appointed as Chief Executive Officer at CENTENE CORP.
  - Action: appointed
  - Role: Chief Executive Officer
  source text: On March 21, 2022, the Board of Directors (the “ Board ”) of Centene Corporation (the “ Company ”) appointed Sarah M. London, currently the Company’s Vice Chairman and member of the Office of the Chairman, to the position of Chief Executive Officer of the Company, effective immediately, succeeding of Michael F. Neidorff.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1071739/000114036122010555/0001140361-22-010555-index.htm

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