---
schema_version: "secwatch.filing_event.v1"
accession: "0000011544-22-000035"
form_type: "8-K"
ticker: "WRB"
cik: "0000011544"
company_name: "BERKLEY W R CORP"
filed_at: "2022-12-12T23:59:59+00:00"
generated_at: "2026-06-21T05:57:29.521322+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# W. R. Berkley elects Daniel L. Mosley to board effective Jan 1, 2023

## Summary
- Board expands to ten members; independent directors increase to eight.
- Mosley named to Compensation Committee and Nominating and Corporate Governance Committee.
- Mosley is a Partner at BDT & Company and former partner at Cravath, Swaine & Moore LLP.

## SEC filing metadata
- accession: 0000011544-22-000035
- form_type: 8-K
- ticker: WRB
- cik: 0000011544
- company_name: BERKLEY W R CORP
- filed_at: 2022-12-12T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/11544/000001154422000035/0000011544-22-000035-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/11544/000001154422000035/wrb-20221209.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000011544-22-000035
- JSON: https://secwatch.observer/filing/0000011544-22-000035.json
- Plain text: https://secwatch.observer/filing/0000011544-22-000035.txt

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