Marshall Wace, LLP
- SEC CIK
- 0001318757
- Latest filing
- Aug 13, 2026
WRB holding history
Berkley W R Corp in every 13F filed by Marshall Wace, LLP, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
WRB overviewAll 13F holders of WRBFull Q2 2026 holdings
- Shares (Q2 2026)
- 136,322
- Value
- $9.61M
- % of portfolio
- <0.1%
- Quarters held
- 12
- Since Q4 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 136,322 | $9.61M | <0.1% | +104,687+330.9% | Added | Holders |
| Q1 2026 | 31,635 | $2.10M | <0.1% | +27,402+647.3% | Added | Holders |
| Q4 2025 | 4,233 | $296.8K | <0.1% | −1,812−30.0% | Reduced | Holders |
| Q3 2025 | 6,045 | $463.2K | <0.1% | −172,700−96.6% | Reduced | Holders |
| Q2 2025 | 178,745 | $13.1M | <0.1% | −564,895−76.0% | Reduced | Holders |
| Q1 2025 | 743,640 | $52.9M | 0.1% | +632,905+571.5% | Added | Holders |
| Q4 2024 | 110,735 | $6.48M | <0.1% | +83,540+307.2% | Added | Holders |
| Q3 2024 | 27,195 | $1.54M | <0.1% | −2,458−8.3% | Reduced | Holders |
| Q2 2024 | 29,653 | $2.33M | <0.1% | +29,653 | New | Holders |
| Q3 2023 | 0 | $0 | 0.0% | −124,750−100.0% | Sold out | Holders |
| Q2 2023 | 124,750 | $7.43M | <0.1% | +124,750 | New | Holders |
| Q3 2022 | 0 | $0 | 0.0% | −309,811−100.0% | Sold out | Holders |
| Q2 2022 | 309,811 | $21.1M | <0.1% | +309,811 | New | Holders |
| Q1 2022 | 0 | $0 | 0.0% | −14,454−100.0% | Sold out | Holders |
| Q4 2021 | 14,454 | $1.19M | <0.1% | +14,454 | New | Holders |