CSGP
CoStar Group, Inc. · Real Estate · Real Estate - Services
Momentum inputs (comparable managers):
holder breadth +14.3% ·
share flow +2.4% ·
net new positions +12.5%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 161 | -1 | 285.24M | $8.09B | +6 | −6 |
| Q1 2026 | 164 | -4 | 297.65M | $12.02B | +8 | −13 |
| Q4 2025 | 167 | 0 | 346.71M | $23.31B | +2 | −1 |
| Q3 2025 | 23 | -3 | 175.87M | $14.83B | — | −4 |
| Q2 2025 | 24 | +4 | 163.02M | $13.10B | +4 | — |
| Q1 2025 | 17 | -1 | 53.06M | $4.20B | +2 | −3 |
| Q4 2024 | 18 | +1 | 51.64M | $3.69B | +2 | −1 |
| Q3 2024 | 16 | +2 | 30.21M | $2.28B | +3 | −1 |
| Q2 2024 | 14 | — | 29.50M | $2.19B | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 11.31M | +2.1% | $850.66M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 11.31M | +2.1% | $850.66M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 3 | Baillie Gifford ✦ | 8.80M | -2.8% | $663.81M | 0.5% | ▼ Trim | 2 | SEC ↗ |
| 4 | Baillie Gifford ✦ | 8.80M | -2.8% | $663.81M | 0.5% | ▼ Trim | 2 | SEC ↗ |
| 5 | Baillie Gifford ✦ | 8.80M | -2.8% | $663.81M | 0.5% | ▼ Trim | 2 | SEC ↗ |
| 6 | Baillie Gifford ✦ | 8.80M | -2.8% | $663.81M | 0.5% | ▼ Trim | 2 | SEC ↗ |
| 7 | Norges Bank ✦ (passive) | 5.14M | +0.8% | $387.54M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 8 | T. Rowe Price ✦ | 1.27M | -12.0% | $95.91M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | T. Rowe Price ✦ | 1.27M | -12.0% | $95.91M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | Viking Global Investors ✦ | 1.26M | New | $95.14M | 0.3% | New | 1 | SEC ↗ |
| 11 | Point72 Asset Management ✦ | 646.45K | New | $48.77M | 0.2% | New | 1 | SEC ↗ |
| 12 | Bridgewater Associates ✦ | 423.07K | +23.7% | $31.92M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 13 | Wellington Management ✦ | 347.69K | -42.2% | $26.23M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | Wellington Management ✦ | 347.69K | -42.2% | $26.23M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | Wellington Management ✦ | 347.69K | -42.2% | $26.23M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 16 | Wellington Management ✦ | 347.69K | -42.2% | $26.23M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | Wellington Management ✦ | 347.69K | -42.2% | $26.23M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | Citadel Advisors ✦ | 252.29K | -45.9% | $19.03M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | Citadel Advisors ✦ | 252.29K | -45.9% | $19.03M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | Adage Capital Partners ✦ | 252.15K | -9.5% | $19.02M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 21 | Millennium Management ✦ | 207.19K | -34.4% | $15.63M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 22 | Renaissance Technologies ✦ | 175.18K | -72.2% | $13.22M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 23 | D. E. Shaw & Co. ✦ | 73.29K | +684.3% | $5.53M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 24 | AQR Capital Management ✦ | 25.52K | -11.5% | $1.92M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 25 | AQR Capital Management ✦ | 25.52K | -11.5% | $1.92M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 26 | Markel Group ✦ | 18.60K | 0.0% | $1.40M | 0.0% | Held | 2 | SEC ↗ |
| 27 | Arrowstreet Capital ✦ | 11.28K | New | $850,812 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Viking Global Investors | $95.14M | 0.3% |
| Point72 Asset Management | $48.77M | 0.2% |
| Arrowstreet Capital | $850,812 | 0.0% |
Exited
| Two Sigma Investments | $10.92M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 787 holders, 405.09M shares, $16.02B 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)
Officer · 4.79K sh · $147,375
Director · 3.50K sh · $105,735
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology