WRB
W. R. Berkley Corporation · Financial Services · Insurance - Property & Casualty
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +0.4% · net new positions 0.0% · formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 3 | 0 | 104.11K | $7.07M | n/a | n/a |
| Q2 2026 | 154 | +3 | 169.31M | $11.96B | +7 | −5 |
| Q1 2026 | 155 | 0 | 169.37M | $11.23B | +5 | −6 |
| Q4 2025 | 154 | -3 | 198.67M | $13.93B | +1 | −3 |
| Q3 2025 | 22 | -1 | 111.59M | $8.55B | +1 | −3 |
| Q2 2025 | 21 | +1 | 94.67M | $6.95B | +2 | −1 |
| Q1 2025 | 17 | +1 | 32.68M | $2.32B | +1 | n/a |
| Q4 2024 | 16 | 0 | 32.24M | $1.89B | +1 | −1 |
| Q3 2024 | 15 | 0 | 16.99M | $961.87M | +2 | −2 |
| Q2 2024 | 15 | n/a | 11.87M | $932.35M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | State Street Global Advisors ✦ (passive) | 15.11M | n/a | $884.24M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 7.69M | +1.4% | $449.17M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 3 | Norges Bank ✦ (passive) | 4.66M | -5.5% | $272.58M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 4 | AQR Capital Management ✦ | 1.30M | +17.2% | $76.18M | 0.1% | ▲ Add | 3 | SEC ↗ ×6 |
| 5 | Millennium Management ✦ | 906.07K | +0.2% | $53.02M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | Arrowstreet Capital ✦ | 812.26K | -8.1% | $47.53M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 7 | Wellington Management ✦ | 519.02K | -31.1% | $30.37M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 8 | T. Rowe Price ✦ | 427.68K | +0.1% | $25.03M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 9 | Citadel Advisors ✦ | 367.38K | New | $21.50M | 0.0% | New | 1 | SEC ↗ ×2 |
| 10 | Renaissance Technologies ✦ | 130.05K | +79.8% | $7.61M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | Marshall Wace ✦ | 110.73K | +307.2% | $6.48M | 0.0% | ▲ Add | 3 | SEC ↗ ×4 |
| 12 | GAMCO Investors ✦ | 97.33K | -1.5% | $5.70M | 0.1% | ▼ Trim | 3 | SEC ↗ |
| 13 | Markel Group ✦ | 60.75K | 0.0% | $3.56M | 0.0% | Held | 3 | SEC ↗ |
| 14 | Two Sigma Investments ✦ | 28.91K | -26.9% | $1.69M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 15 | Gotham Asset Management ✦ | 13.80K | +3.5% | $807,576 | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | Fisher Asset Management ✦ | 3.67K | +2.3% | $214,602 | 0.0% | ▲ Add | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Citadel Advisors | $21.50M | 0.0% |
Exited
| D. E. Shaw & Co. | $4.19M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 915 holders, 275.59M shares, $17.98B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.