5 institutions reported holding $2.5M of BERKLEY W R CORP (WRBPRH) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($2.0M), SIMPLEX TRADING, LLC ($225,696), WESBANCO BANK INC ($149,400), GROUP ONE TRADING LLC ($77,583), PNC Financial Services Group, Inc. ($3,108). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $2.0M | 28,600 | Trimmed |
| 2 | SIMPLEX TRADING, LLC | $225,696 | 3,200 | Trimmed |
| 3 | WESBANCO BANK INC | $149,400 | 10,000 | Hold |
| 4 | GROUP ONE TRADING LLC | $77,583 | 1,100 | Added |
| 5 | PNC Financial Services Group, Inc. | $3,108 | 208 | Added |
Source: SEC Form 13F filings · as of 2026-06-30