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MarketsSEC EDGAR SCHEDULE 13GFiled 33 h ago

SilverBox Corp IV: BERKLEY W R CORP amends Schedule 13G stake filing

Open the sourceReported by SEC EDGAR SCHEDULE 13G, sec.gov, 9 November 2026, by SEC EDGAR SCHEDULE 13G

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W. R. Berkley Corp. amended its Schedule 13G beneficial ownership filing for SilverBox Corp IV, disclosing the change in an SEC filing under accession number 0001628280-26-072421. The amendment updates the insurer's reported stake in the special purpose acquisition company, though the filing summary did not specify the revised share count or percentage. The disclosure matters because 13G amendments signal shifts in passive or institutional holdings that can affect SPAC governance and shareholder votes. Investors will watch for the full filing details to confirm whether Berkley's position increased, decreased or was merely restated.

Muhabbit's AI wrote this summary in its own words from SEC EDGAR SCHEDULE 13G's report. It can get details wrong, so check the source.

Named in this story

SilverBox Corp IV, BERKLEY W R CORP