BERKLEY W R CORP (WRBPRE)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
3
Reporting holders
$2.3M
Reported value
100.0%
Held as options
+0
Holder change
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| IMC-Chicago, LLC | $2.0M | options only | 0.00% | 2q | OPTIONS |
| SIMPLEX TRADING, LLC | $225.7K | options only | 0.00% | 29q | OPTIONS |
| GROUP ONE TRADING LLC | $77.6K | options only | 0.00% | 7q | OPTIONS |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 3 | $2.3M | 0 | 0 | 0 | 0 | 100.0% |
| Q1 2026 | 3 | $4.5M | 0 | 1 | 0 | 0 | 100.0% |
| Q4 2025 | 3 | $4.0M | 0 | 1 | 0 | 0 | 100.0% |
| Q3 2025 | 2 | $827.8K | 0 | 0 | 0 | 0 | 100.0% |
| Q2 2025 | 4 | $2.5M | 0 | 1 | 0 | 0 | 100.0% |
| Q1 2025 | 3 | $2.5M | 0 | 0 | 0 | 0 | 100.0% |
| Q4 2024 | 3 | $749.2K | 0 | 1 | 0 | 0 | 100.0% |
| Q3 2024 | 4 | $1.6M | 0 | 4 | 0 | 0 | 100.0% |
| Q2 2024 | 3 | $6.7M | 0 | 0 | 0 | 0 | 100.0% |
| Q1 2024 | 4 | $921.8K | 44 | 2 | 0 | 0 | 99.9% |
| Q4 2023 | 2 | $10.9M | 0 | 1 | 0 | 0 | 100.0% |
| Q3 2023 | 3 | $984.4K | 0 | 1 | 0 | 0 | 100.0% |
| Q2 2023 | 3 | $489.4K | 0 | 2 | 0 | 0 | 100.0% |
| Q1 2023 | 1 | $1.6K | 0 | 0 | 0 | 0 | 100.0% |
| Q4 2022 | 2 | $2.2M | 0 | 1 | 0 | 0 | 100.0% |
| Q3 2022 | 2 | $1.0M | 0 | 0 | 0 | 0 | 100.0% |
| Q2 2022 | 2 | $1.0M | 0 | 2 | 0 | 0 | 100.0% |
| Q1 2022 | 1 | $446.0K | 0 | 0 | 0 | 0 | 100.0% |
| Q4 2021 | 1 | $304.0K | 0 | 0 | 0 | 0 | 100.0% |
| Q3 2021 | 1 | $1.0M | 0 | 0 | 0 | 0 | 100.0% |
| Q2 2021 | 1 | $989.0K | 0 | 0 | 0 | 0 | 100.0% |
| Q1 2021 | 1 | $1.9M | 0 | 0 | 0 | 0 | 100.0% |
| Q4 2020 | 1 | $524.0K | 0 | 0 | 0 | 0 | 100.0% |
| Q3 2020 | 2 | $485.0K | 13,129 | 1 | 0 | 0 | 28.9% |
| Q2 2020 | 1 | $640.0K | 0 | 0 | 0 | 0 | 100.0% |
| Q1 2020 | 1 | $813.0K | 0 | 0 | 0 | 0 | 100.0% |
| Q4 2019 | 2 | $222.0K | 0 | 0 | 0 | 0 | 100.0% |
| Q3 2019 | 2 | $421.0K | 0 | 1 | 0 | 0 | 100.0% |
| Q2 2019 | 2 | $526.0K | 0 | 2 | 0 | 0 | 100.0% |
| Q1 2019 | 2 | $891.0K | 27,307 | 1 | 0 | 0 | 23.7% |
| Q4 2018 | 3 | $635.0K | 20,800 | 0 | 0 | 0 | 27.7% |