Security record · archived quarter
CSGP
CoStar Group, Inc. · Real Estate · Real Estate - Services
164Tracked holders
-4Δ holders
297.65MShares held
$12.02BReported value
+8New positions
−13Exits
Momentum inputs (comparable managers):
holder breadth -2.4% ·
share flow +0.1% ·
net new positions -3.0%
— formula
Concentrated accumulation — rising shares among fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| 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 | — | — |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 21 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 22 | BlackRock ✦ (passive) | 33.81M | -0.5% | $1.36B | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 23 | Vanguard Capital Management Llc | 27.42M | — | $1.11B | 0.0% | n/c | 1 | SEC ↗ |
| 24 | State Street Global Advisors ✦ (passive) | 18.65M | +0.1% | $752.38M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 25 | Principal Financial Group Inc | 17.70M | +0.7% | $713.87M | 0.4% | ▲ Add | 2 | SEC ↗ |
| 26 | Principal Financial Group Inc | 17.70M | +0.7% | $713.87M | 0.4% | ▲ Add | 2 | SEC ↗ |
| 27 | Principal Financial Group Inc | 17.70M | +0.7% | $713.87M | 0.4% | ▲ Add | 2 | SEC ↗ |
| 28 | Principal Financial Group Inc | 17.70M | +0.7% | $713.87M | 0.4% | ▲ Add | 2 | SEC ↗ |
| 29 | Bamco Inc /Ny/ | 16.31M | -16.3% | $658.11M | 2.0% | ▼ Trim | 2 | SEC ↗ |
| 30 | Invesco Ltd. | 15.95M | +7.0% | $643.32M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 31 | Invesco Ltd. | 15.95M | +7.0% | $643.32M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 32 | Invesco Ltd. | 15.95M | +7.0% | $643.32M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 33 | Invesco Ltd. | 15.95M | +7.0% | $643.32M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 34 | Invesco Ltd. | 15.95M | +7.0% | $643.32M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 35 | Invesco Ltd. | 15.95M | +7.0% | $643.32M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 36 | Invesco Ltd. | 15.95M | +7.0% | $643.32M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 37 | Invesco Ltd. | 15.95M | +7.0% | $643.32M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 38 | Invesco Ltd. | 15.95M | +7.0% | $643.32M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 39 | Invesco Ltd. | 15.95M | +7.0% | $643.32M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 40 | Invesco Ltd. | 15.95M | +7.0% | $643.32M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 41 | Capital International Investors | 15.51M | +43.1% | $625.82M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 42 | Baillie Gifford ✦ | 13.61M | +5.2% | $549.06M | 0.6% | ▲ Add | 8 | SEC ↗ |
| 43 | Baillie Gifford ✦ | 13.61M | +5.2% | $549.06M | 0.6% | ▲ Add | 8 | SEC ↗ |
| 44 | Baillie Gifford ✦ | 13.61M | +5.2% | $549.06M | 0.6% | ▲ Add | 8 | SEC ↗ |
| 45 | Baillie Gifford ✦ | 13.61M | +5.2% | $549.06M | 0.6% | ▲ Add | 8 | SEC ↗ |
| 46 | Geode Capital Management ✦ (passive) | 12.45M | +2.2% | $500.45M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 47 | Geode Capital Management ✦ (passive) | 12.45M | +2.2% | $500.45M | 0.0% | ▲ Add | 8 | SEC ↗ |
| 48 | Goldman Sachs Group ✦ | 9.25M | +146.4% | $372.98M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 49 | Goldman Sachs Group ✦ | 9.25M | +146.4% | $372.98M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 50 | Goldman Sachs Group ✦ | 9.25M | +146.4% | $372.98M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 51 | Goldman Sachs Group ✦ | 9.25M | +146.4% | $372.98M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 52 | Janus Henderson Group Plc | 7.72M | +3.4% | $311.59M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 53 | Janus Henderson Group Plc | 7.72M | +3.4% | $311.59M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 54 | Janus Henderson Group Plc | 7.72M | +3.4% | $311.59M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 55 | Janus Henderson Group Plc | 7.72M | +3.4% | $311.59M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 56 | Janus Henderson Group Plc | 7.72M | +3.4% | $311.59M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 57 | D. E. Shaw & Co. ✦ | 5.91M | +552.6% | $238.39M | 0.2% | ▲ Add | 8 | SEC ↗ |
| 58 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 59 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 60 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 61 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 62 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 63 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 64 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 65 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 66 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 67 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 68 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 69 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 70 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 71 | Morgan Stanley ✦ | 5.41M | +2.3% | $218.34M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 72 | Capital Research Global Investors | 4.37M | -21.4% | $176.44M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 73 | Bank Of America Corp /De/ | 3.57M | +1.8% | $143.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 74 | Bank Of America Corp /De/ | 3.57M | +1.8% | $143.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 75 | Bank Of America Corp /De/ | 3.57M | +1.8% | $143.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 76 | Bank Of America Corp /De/ | 3.57M | +1.8% | $143.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 77 | Bank Of America Corp /De/ | 3.57M | +1.8% | $143.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 78 | Northern Trust Corp | 3.43M | -1.0% | $138.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 79 | Northern Trust Corp | 3.43M | -1.0% | $138.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 80 | Northern Trust Corp | 3.43M | -1.0% | $138.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 81 | Northern Trust Corp | 3.43M | -1.0% | $138.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 82 | Northern Trust Corp | 3.43M | -1.0% | $138.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 83 | Northern Trust Corp | 3.43M | -1.0% | $138.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 84 | Northern Trust Corp | 3.43M | -1.0% | $138.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 85 | Northern Trust Corp | 3.43M | -1.0% | $138.46M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 86 | Amundi | 3.28M | -20.3% | $132.34M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 87 | Amundi | 3.28M | -20.3% | $132.34M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 88 | Amundi | 3.28M | -20.3% | $132.34M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 89 | Amundi | 3.28M | -20.3% | $132.34M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 90 | Amundi | 3.28M | -20.3% | $132.34M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 91 | Legal & General Group Plc | 3.03M | +5.7% | $122.05M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 92 | Legal & General Group Plc | 3.03M | +5.7% | $122.05M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 93 | Legal & General Group Plc | 3.03M | +5.7% | $122.05M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 94 | Charles Schwab Investment… | 2.87M | +7.9% | $115.95M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 95 | Fidelity (FMR) ✦ | 2.83M | +135.5% | $114.22M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 96 | Fidelity (FMR) ✦ | 2.83M | +135.5% | $114.22M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 97 | Fidelity (FMR) ✦ | 2.83M | +135.5% | $114.22M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 98 | Ensign Peak Advisors, Inc | 2.73M | +372.8% | $110.30M | 0.2% | ▲ Add | 2 | SEC ↗ |
| 99 | BNP Paribas Asset Management… | 2.68M | -4.9% | $107.93M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 100 | BNP Paribas Asset Management… | 2.68M | -4.9% | $107.93M | 0.1% | ▼ Trim | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| Norges Bank | $476.76M | was 0.1% |
| Third Point | $212.81M | was 2.9% |
| Viking Global Investors | $97.00M | was 0.3% |
| Caisse De Depot Et Placement… | $39.48M | was 0.1% |
| Clearbridge Investments, LLC | $25.69M | was 0.0% |
| Parnassus Investments, Llc | $18.34M | was 0.0% |
| Jennison Associates Llc | $11.09M | was 0.0% |
| Hrt Financial Lp | $8.33M | was 0.0% |
| Group One Trading Llc | $1.33M | was 0.0% |
| Bridgewater Associates | $606,505 | was 0.0% |
| First Manhattan Co. Llc. | $460,392 | was 0.0% |
| Loomis Sayles & Co L P | $236,349 | 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.
Frequently co-owned
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)
Aug 07
Cann Cynthia Cammett
Officer · 4.79K sh · $147,375
Aug 05
Hill John W
Director · 3.50K sh · $105,735
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 14
SC 13G — BAMCO INC /NY/
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
Get this via the API