BERKLEY W R CORPInsider Trading & SEC Form 4 Analysis
Institutional analysis of internal capital flows based on SEC Form 4 filings.
+$662.9M
Buys minus sales2026.06.03
Latest Form 411
Reporting entitiesMITSUI SUMITOMO INSURANCE CO LTD
$22.3MNo seller detected
No open-market salesAutomated_Intelligence_Report :: WRB
Algorithmic analysis of recent insider trading activity for WRB reveals a bullish posture among the C-suite and board members. Based on the latest SEC Form 4 filings, we have tracked capital events executed by 11 distinct corporate insiders. The aggregate nominal exposure during this reporting cycle reached $662.91M.
Market dynamics show a positive net capital flow of $662.91M when isolating open-market purchases versus open-market sales. The trading volume is heavily weighted towards open-market executions, providing a clearer signal of insider conviction regarding current valuation levels compared to option-based equity grants.
From a microstructural perspective, the most notable capital injection was executed by MITSUI SUMITOMO INSURANCE CO LTD (Officer/Other), signaling strong internal support. Continuous monitoring of these Tier-1 actors is essential, as their liquidity decisions often precede material corporate events or reflect an informed, asymmetric perspective on the future performance of WRB.
$662.91M
USD NOMINAL VALUE11
UNIQUE C-SUITE ENTITIES2026.06.03
ISO_8601 FORMATAutomated_Queries :: Frequently Asked Questions
>Are WRB insiders selling their shares?
No significant open-market selling activity has been detected in the most recent batch of filings for WRB.
>What is the overall insider sentiment for WRB?
The short-term structural capital flow indicates a BULLISH sentiment, with a net flow of $662.91M generated by 11 active C-Suite entities.
>When was the latest SEC Form 4 filed for WRB?
The most recent insider transaction on record was filed on 2026.06.03. InsiderAlpha monitors EDGAR filings and updates this terminal as new Form 4 documents are published.