William R. Berkley Jr.
Chairman, President and CEO, Director, 10% Owner · BERKLEY W R CORP
- 2025
- Aug 5, 2026
- 4
Summary
Latest filing:
William R. Berkley Jr. is Chairman, President and CEO, Director, 10% Owner of BERKLEY W R CORP (WRB). 4 SEC Form 4 filings on record going back to 2025, most recently on 5 August 2026.
Recent transactions
6The latest 6 SEC Form 4 transactions reported by William R. Berkley Jr..
Trading pattern
InsiderAlpha's records for William R. Berkley Jr. go back to 2025: 4 primary Form 4 filings, an average of 2.0 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies William R. Berkley Jr. files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- MITSUI SUMITOMO INSURANCE CO LTD - $705.46M in WRB purchases and sales in the last 12 months
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Frequently asked questions
Who is William R. Berkley Jr.?
William R. Berkley Jr. is a corporate insider, tracked as Chairman, President and CEO, Director, 10% Owner of BERKLEY W R CORP (WRB). InsiderAlpha holds 4 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has William R. Berkley Jr. submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.