WRB
W. R. Berkley Corporation · Financial Services · Insurance - Property & Casualty
Momentum inputs (comparable managers):
holder breadth -4.3% ·
share flow -1.2% ·
net new positions -9.1%
· formula
Broad distribution: falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
| 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 | The Vanguard Group ✦ (passive) | 36.72M | -0.6% | $2.81B | 0.0% | ▼ Trim | 2 | SEC ↗ ×5 |
| 2 | BlackRock ✦ (passive) | 24.77M | -1.8% | $1.90B | 0.0% | ▼ Trim | 2 | SEC ↗ ×21 |
| 3 | State Street Global Advisors ✦ (passive) | 14.92M | +1.0% | $1.14B | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | Morgan Stanley ✦ | 11.80M | n/a | $904.47M | 0.1% | n/c | 1 | SEC ↗ ×14 |
| 5 | JPMorgan Chase ✦ | 9.83M | n/a | $752.95M | 0.0% | n/c | 1 | SEC ↗ ×30 |
| 6 | Geode Capital Management ✦ (passive) | 8.34M | +1.9% | $640.28M | 0.0% | ▲ Add | 6 | SEC ↗ ×2 |
| 7 | AQR Capital Management ✦ | 1.65M | -7.8% | $126.13M | 0.1% | ▼ Trim | 6 | SEC ↗ ×6 |
| 8 | Goldman Sachs Group ✦ | 1.61M | n/a | $123.67M | 0.0% | n/c | 1 | SEC ↗ ×4 |
| 9 | Arrowstreet Capital ✦ | 569.43K | -47.0% | $43.63M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 10 | T. Rowe Price ✦ | 438.82K | +0.5% | $33.62M | 0.0% | ▲ Add | 6 | SEC ↗ ×2 |
| 11 | Fidelity (FMR) ✦ | 288.63K | +51.2% | $22.11M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 12 | Gotham Asset Management ✦ | 211.99K | +82.4% | $16.24M | 0.1% | ▲ Add | 6 | SEC ↗ |
| 13 | Citadel Advisors ✦ | 89.01K | +389.0% | $6.82M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 14 | GAMCO Investors ✦ | 87.49K | -4.9% | $6.70M | 0.1% | ▼ Trim | 6 | SEC ↗ |
| 15 | Point72 Asset Management ✦ | 79.09K | New | $6.06M | 0.0% | New | 1 | SEC ↗ |
| 16 | Markel Group ✦ | 60.75K | 0.0% | $4.65M | 0.0% | Held | 6 | SEC ↗ |
| 17 | Wellington Management ✦ | 43.34K | -69.9% | $3.32M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 18 | Two Sigma Investments ✦ | 29.02K | +115.5% | $2.22M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 19 | Millennium Management ✦ | 21.63K | -65.0% | $1.66M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 20 | Marshall Wace ✦ | 6.04K | -96.6% | $463,168 | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 21 | Fisher Asset Management ✦ | 5.02K | +36.9% | $384,713 | 0.0% | ▲ Add | 5 | SEC ↗ |
| 22 | D. E. Shaw & Co. ✦ | 2.76K | -12.6% | $211,778 | 0.0% | ▼ Trim | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $6.06M | 0.0% |
Exited
| Norges Bank | $367.92M | was 0.0% |
| Adage Capital Partners | $20.17M | was 0.0% |
| Renaissance Technologies | $3.29M | 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.