---
schema_version: "secwatch.filing_event.v1"
accession: "0000947484-24-000114"
form_type: "8-K"
ticker: "ACGL"
cik: "0000947484"
company_name: "ARCH CAPITAL GROUP LTD."
filed_at: "2024-08-27T23:59:59+00:00"
generated_at: "2026-05-31T07:32:59.446906+00:00"
event_type: "leadership"
sentiment: "positive"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Arch Capital appoints Dan Houston and Neal Triplett to Board effective August 27, 2024

## Summary
- Dan Houston is Chairman & CEO of Principal Financial Group; Neal Triplett is President/CEO of Duke University Management Company.
- Both appointed as Class II directors; no committee assignments at this time.
- They will receive standard non-employee director compensation in cash and equity.
- ACGL CEO cites 'transformational period of growth' and believes appointments validate market leadership.

## SEC filing metadata
- accession: 0000947484-24-000114
- form_type: 8-K
- ticker: ACGL
- cik: 0000947484
- company_name: ARCH CAPITAL GROUP LTD.
- filed_at: 2024-08-27T23:59:59+00:00
- event_type: leadership
- sentiment: positive
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/947484/000094748424000114/0000947484-24-000114-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/947484/000094748424000114/acgl-20240827.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000947484-24-000114
- JSON: https://secwatch.observer/filing/0000947484-24-000114.json
- Plain text: https://secwatch.observer/filing/0000947484-24-000114.txt

## Key facts
- Executive change
  Neal Triplett was appointed as Class II Director at ARCH CAPITAL GROUP LTD..
  - Action: appointed
  - Role: Class II Director
  source text: On August 27, 2024, Arch Capital Group Ltd.’s (“ACGL”) Board of Directors (“Board”) unanimously approved the appointment of Dan Houston and Neal Triplett to serve as Class II directors of the Board, effective August 27, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/947484/000094748424000114/0000947484-24-000114-index.htm
- Executive change
  Dan Houston was appointed as Class II Director at ARCH CAPITAL GROUP LTD..
  - Action: appointed
  - Role: Class II Director
  source text: On August 27, 2024, Arch Capital Group Ltd.’s (“ACGL”) Board of Directors (“Board”) unanimously approved the appointment of Dan Houston and Neal Triplett to serve as Class II directors of the Board, effective August 27, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/947484/000094748424000114/0000947484-24-000114-index.htm

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