CWT
California Water Service Group · Utilities · Regulated Water
Momentum inputs (comparable managers):
holder breadth +15.4% ·
share flow +0.8% ·
net new positions +13.3%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 97 | -7 | 34.03M | $1.66B | +6 | −15 |
| Q1 2026 | 109 | +1 | 36.19M | $1.64B | +7 | −7 |
| Q4 2025 | 109 | +1 | 39.49M | $1.71B | +2 | — |
| Q3 2025 | 16 | -1 | 26.36M | $1.21B | — | −2 |
| Q2 2025 | 15 | +2 | 24.84M | $1.13B | +3 | −1 |
| Q1 2025 | 10 | 0 | 5.85M | $283.54M | +1 | −1 |
| Q4 2024 | 10 | +1 | 6.00M | $272.11M | +1 | — |
| Q3 2024 | 8 | -1 | 2.59M | $140.66M | +1 | −2 |
| Q2 2024 | 9 | — | 2.31M | $112.22M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 10.37M | — | $471.59M | 0.0% | n/c | 1 | SEC ↗ ×14 |
| 2 | The Vanguard Group ✦ (passive) | 7.38M | — | $335.48M | 0.0% | n/c | 1 | SEC ↗ ×5 |
| 3 | State Street Global Advisors ✦ (passive) | 3.18M | -2.5% | $144.78M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 1.42M | +1.0% | $64.46M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 5 | Fidelity (FMR) ✦ | 1.05M | — | $47.87M | 0.0% | n/c | 1 | SEC ↗ ×3 |
| 6 | Norges Bank ✦ (passive) | 676.29K | 0.0% | $30.76M | 0.0% | Held | 5 | SEC ↗ |
| 7 | Renaissance Technologies ✦ | 281.00K | +36.8% | $12.78M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | T. Rowe Price ✦ | 148.15K | +154.1% | $6.74M | 0.0% | ▲ Add | 5 | SEC ↗ ×2 |
| 9 | Adage Capital Partners ✦ | 100.00K | New | $4.55M | 0.0% | New | 1 | SEC ↗ |
| 10 | Arrowstreet Capital ✦ | 78.18K | +179.1% | $3.56M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 73.59K | -36.0% | $3.35M | 0.0% | ▼ Trim | 5 | SEC ↗ ×5 |
| 12 | Citadel Advisors ✦ | 61.96K | +83.0% | $2.82M | 0.0% | ▲ Add | 4 | SEC ↗ ×2 |
| 13 | Two Sigma Investments ✦ | 7.48K | New | $340,008 | 0.0% | New | 1 | SEC ↗ |
| 14 | Millennium Management ✦ | 6.74K | New | $306,308 | 0.0% | New | 1 | SEC ↗ |
| 15 | D. E. Shaw & Co. ✦ | 6.15K | +25.6% | $279,520 | 0.0% | ▲ Add | 5 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Adage Capital Partners | $4.55M | 0.0% |
| Two Sigma Investments | $340,008 | 0.0% |
| Millennium Management | $306,308 | 0.0% |
Exited
| Marshall Wace | $3.03M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 334 holders, 51.13M shares, $2.11B 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.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Director · 500 sh · $25,105
Director · 3.70K sh · $186,350
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology