8 transactions on file, per SEC Form 4 filings.
See WRB superinvestor activity →Welt Philip S
EVP & Secretary · 2026-08-03
Award
14,086 sh
Welt Philip S
EVP & Secretary · 2026-08-03
Tax withholding
$43K
Baio Richard Mark
EVP & CFO · 2026-08-03
Award
14,086 sh
Baio Richard Mark
EVP & CFO · 2026-08-03
Tax withholding
$47K
BERKLEY WILLIAM R JR
Chairman, President and CEO · 2026-08-03
Award
98,593 sh
BERKLEY WILLIAM R JR
Chairman, President and CEO · 2026-08-03
Tax withholding
$299K
SHIEL JAMES G
EVP - Investments · 2026-08-03
Award
14,086 sh
SHIEL JAMES G
EVP - Investments · 2026-08-03
Tax withholding
$47K
Each row links to the underlying SEC filing. Sells are shown for transparency, not as a signal — see the insider trading article for why.
Following an insider into a stock isn't a strategy on its own. Run your own margin-of-safety analysis, free.
Analyze WRB