---
schema_version: "secwatch.filing_event.v1"
accession: "0000947484-23-000131"
form_type: "8-K"
ticker: "ACGL"
cik: "0000947484"
company_name: "ARCH CAPITAL GROUP LTD."
filed_at: "2023-11-30T23:59:59+00:00"
generated_at: "2026-06-07T20:10:31.124081+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Arch Capital director Thomas R. Watjen resigns from board effective Dec. 31, 2023

## Summary
- Director Thomas R. Watjen informed Arch Capital of his resignation from the Board of Directors.
- Resignation is effective December 31, 2023.
- No replacement has been announced; Board thanks Watjen for his service.
- Watjen's departure is voluntary; no known disagreement cited.

## SEC filing metadata
- accession: 0000947484-23-000131
- form_type: 8-K
- ticker: ACGL
- cik: 0000947484
- company_name: ARCH CAPITAL GROUP LTD.
- filed_at: 2023-11-30T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/947484/000094748423000131/0000947484-23-000131-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/947484/000094748423000131/acgl-20231127.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000947484-23-000131
- JSON: https://secwatch.observer/filing/0000947484-23-000131.json
- Plain text: https://secwatch.observer/filing/0000947484-23-000131.txt

## Key facts
- Executive change
  Thomas R. Watjen resigned as director at ARCH CAPITAL GROUP LTD..
  - Action: resigned
  - Role: director
  source text: Arch Capital Group Ltd. (the “Company”) director, Thomas R. Watjen, has informed the Company of his decision to resign from the Company’s Board of Directors, effective December 31, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/947484/000094748423000131/0000947484-23-000131-index.htm

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