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Security record · archived quarter

CSGP

CoStar Group, Inc. · Real Estate · Real Estate - Services

32.81 -0.1% mkt cap $13.29B quote delayed (FMP) · as of Aug 25 22:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
23Tracked holders
-3Δ holders
175.87MShares held
$14.83BReported value
+0New positions
−4Exits
Falling Conviction score 45/100 5 quarters of rising tracked shares ●●●●● How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth -11.5% · share flow +2.1% · net new positions -17.4%formula
Concentrated accumulation — rising shares among fewer holders

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
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
Holder count
Who holds it · Q3 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 The Vanguard Group (passive) 70.06M +1.8% $5.91B 0.1% ▲ Add 2 SEC ↗
2 The Vanguard Group (passive) 70.06M +1.8% $5.91B 0.1% ▲ Add 2 SEC ↗
3 The Vanguard Group (passive) 70.06M +1.8% $5.91B 0.1% ▲ Add 2 SEC ↗
4 The Vanguard Group (passive) 70.06M +1.8% $5.91B 0.1% ▲ Add 2 SEC ↗
5 The Vanguard Group (passive) 70.06M +1.8% $5.91B 0.1% ▲ Add 2 SEC ↗
6 The Vanguard Group (passive) 70.06M +1.8% $5.91B 0.1% ▲ Add 2 SEC ↗
7 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
8 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
9 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
10 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
11 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
12 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
13 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
14 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
15 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
16 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
17 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
18 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
19 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
20 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
21 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
22 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
23 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
24 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
25 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
26 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
27 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
28 BlackRock (passive) 36.13M +3.1% $3.05B 0.1% ▲ Add 2 SEC ↗
29 State Street Global Advisors (passive) 18.28M +3.1% $1.54B 0.1% ▲ Add 4 SEC ↗
30 Geode Capital Management (passive) 12.60M +2.0% $1.06B 0.1% ▲ Add 6 SEC ↗
31 Geode Capital Management (passive) 12.60M +2.0% $1.06B 0.1% ▲ Add 6 SEC ↗
32 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
33 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
34 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
35 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
36 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
37 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
38 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
39 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
40 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
41 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
42 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
43 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
44 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
45 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
46 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
47 Morgan Stanley 8.54M $720.78M 0.0% n/c 1 SEC ↗
48 Baillie Gifford 8.24M -3.5% $695.35M 0.5% ▼ Trim 6 SEC ↗
49 Baillie Gifford 8.24M -3.5% $695.35M 0.5% ▼ Trim 6 SEC ↗
50 Baillie Gifford 8.24M -3.5% $695.35M 0.5% ▼ Trim 6 SEC ↗
51 Baillie Gifford 8.24M -3.5% $695.35M 0.5% ▼ Trim 6 SEC ↗
52 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
53 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
54 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
55 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
56 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
57 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
58 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
59 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
60 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
61 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
62 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
63 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
64 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
65 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
66 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
67 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
68 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
69 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
70 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
71 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
72 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
73 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
74 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
75 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
76 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
77 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
78 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
79 JPMorgan Chase 3.83M $323.47M 0.0% n/c 1 SEC ↗
80 Tiger Global Management 3.25M 0.0% $273.79M 0.8% Held 4 SEC ↗
81 Third Point 3.02M -2.2% $254.54M 3.0% ▼ Trim 3 SEC ↗
82 Goldman Sachs Group 2.20M $185.21M 0.0% n/c 1 SEC ↗
83 Goldman Sachs Group 2.20M $185.21M 0.0% n/c 1 SEC ↗
84 Goldman Sachs Group 2.20M $185.21M 0.0% n/c 1 SEC ↗
85 Goldman Sachs Group 2.20M $185.21M 0.0% n/c 1 SEC ↗
86 Viking Global Investors 1.85M -42.5% $156.06M 0.4% ▼ Trim 2 SEC ↗
87 Citadel Advisors 1.73M +5391.3% $145.67M 0.1% ▲ Add 6 SEC ↗
88 Citadel Advisors 1.73M +5391.3% $145.67M 0.1% ▲ Add 6 SEC ↗
89 Fidelity (FMR) 1.58M +21.9% $133.32M 0.0% ▲ Add 2 SEC ↗
90 Fidelity (FMR) 1.58M +21.9% $133.32M 0.0% ▲ Add 2 SEC ↗
91 Fidelity (FMR) 1.58M +21.9% $133.32M 0.0% ▲ Add 2 SEC ↗
92 T. Rowe Price 1.26M +5.8% $106.66M 0.0% ▲ Add 6 SEC ↗
93 T. Rowe Price 1.26M +5.8% $106.66M 0.0% ▲ Add 6 SEC ↗
94 D. E. Shaw & Co. 905.49K -1.2% $76.40M 0.1% ▼ Trim 6 SEC ↗
95 Marshall Wace 635.94K +401.9% $53.65M 0.1% ▲ Add 2 SEC ↗
96 Marshall Wace 635.94K +401.9% $53.65M 0.1% ▲ Add 2 SEC ↗
97 Marshall Wace 635.94K +401.9% $53.65M 0.1% ▲ Add 2 SEC ↗
98 Marshall Wace 635.94K +401.9% $53.65M 0.1% ▲ Add 2 SEC ↗
99 Arrowstreet Capital 453.90K -18.8% $38.30M 0.0% ▼ Trim 5 SEC ↗
100 Millennium Management 408.36K +280.5% $34.45M 0.0% ▲ Add 6 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 $426.78M was 0.1%
Bridgewater Associates $34.79M was 0.1%
Two Sigma Investments $2.11M was 0.0%
Markel Group $1.50M 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.

Insider transactions

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

Beneficial ownership
Aug 14 SC 13G — BAMCO INC /NY/

View original SEC filing ↗

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: Q3 2025 · Methodology · Get this via the API