BERKLEY W R CORP COM is a security (CUSIP 084423952) tracked across SEC portfolio filings. 4 institutional managers reported $610K on Form 13F as of 2026-03-31.
| Manager | Location | Value | Shares |
|---|---|---|---|
| IMC-Chicago, LLC | CHICAGO, IL | $597K | — |
| SIMPLEX TRADING, LLC | CHICAGO, IL | $7K | — |
| GROUP ONE TRADING, L.P. | CHICAGO, IL | $7K | — |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |