---
schema_version: "secwatch.filing_event.v1"
accession: "0000947484-25-000022"
form_type: "8-K/A"
ticker: "ACGL"
cik: "0000947484"
company_name: "ARCH CAPITAL GROUP LTD."
filed_at: "2025-02-27T23:59:59+00:00"
generated_at: "2026-05-26T03:01:13.334708+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.1
calibrated_materiality_score: 0.1
confidence: "high"
source: SEC EDGAR
---

# Arch Capital appoints new director Moczarski to compensation and underwriting committees

## Summary
- Alexander Moczarski appointed to Compensation and Human Capital Committee effective Feb 27, 2025.
- Also appointed to Underwriting Oversight Committee effective same date.
- Original board appointment announced Feb 4, 2025; committee assignments now finalized.

## SEC filing metadata
- accession: 0000947484-25-000022
- form_type: 8-K/A
- ticker: ACGL
- cik: 0000947484
- company_name: ARCH CAPITAL GROUP LTD.
- filed_at: 2025-02-27T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.1
- calibrated_materiality_score: 0.1
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/947484/000094748425000022/0000947484-25-000022-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/947484/000094748425000022/acgl-20250204.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000947484-25-000022
- JSON: https://secwatch.observer/filing/0000947484-25-000022.json
- Plain text: https://secwatch.observer/filing/0000947484-25-000022.txt

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