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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
167Tracked holders
0Δ holders
346.71MShares held
$23.31BReported value
+2New positions
−1Exits
Stable Conviction score 51/100 6 quarters of rising tracked shares ●●●●●● How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth 0.0% · share flow -1.5% · net new positions +0.6%formula

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 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 · Q4 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 The Vanguard Group (passive) 70.11M +0.1% $4.71B 0.1% ▲ Add 3 SEC ↗
2 The Vanguard Group (passive) 70.11M +0.1% $4.71B 0.1% ▲ Add 3 SEC ↗
3 The Vanguard Group (passive) 70.11M +0.1% $4.71B 0.1% ▲ Add 3 SEC ↗
4 The Vanguard Group (passive) 70.11M +0.1% $4.71B 0.1% ▲ Add 3 SEC ↗
5 The Vanguard Group (passive) 70.11M +0.1% $4.71B 0.1% ▲ Add 3 SEC ↗
6 The Vanguard Group (passive) 70.11M +0.1% $4.71B 0.1% ▲ Add 3 SEC ↗
7 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
8 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
9 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
10 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
11 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
12 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
13 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
14 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
15 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
16 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
17 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
18 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
19 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
20 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
21 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
22 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
23 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
24 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
25 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
26 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
27 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
28 BlackRock (passive) 33.97M -6.0% $2.28B 0.0% ▼ Trim 3 SEC ↗
29 Bamco Inc /Ny/ 19.50M $1.31B 3.6% n/c 1 SEC ↗
30 State Street Global Advisors (passive) 18.63M +1.9% $1.25B 0.0% ▲ Add 5 SEC ↗
31 Principal Financial Group Inc 17.57M $1.18B 0.6% n/c 1 SEC ↗
32 Principal Financial Group Inc 17.57M $1.18B 0.6% n/c 1 SEC ↗
33 Principal Financial Group Inc 17.57M $1.18B 0.6% n/c 1 SEC ↗
34 Invesco Ltd. 14.91M $1.00B 0.1% n/c 1 SEC ↗
35 Invesco Ltd. 14.91M $1.00B 0.1% n/c 1 SEC ↗
36 Invesco Ltd. 14.91M $1.00B 0.1% n/c 1 SEC ↗
37 Invesco Ltd. 14.91M $1.00B 0.1% n/c 1 SEC ↗
38 Invesco Ltd. 14.91M $1.00B 0.1% n/c 1 SEC ↗
39 Invesco Ltd. 14.91M $1.00B 0.1% n/c 1 SEC ↗
40 Invesco Ltd. 14.91M $1.00B 0.1% n/c 1 SEC ↗
41 Invesco Ltd. 14.91M $1.00B 0.1% n/c 1 SEC ↗
42 Invesco Ltd. 14.91M $1.00B 0.1% n/c 1 SEC ↗
43 Invesco Ltd. 14.91M $1.00B 0.1% n/c 1 SEC ↗
44 Invesco Ltd. 14.91M $1.00B 0.1% n/c 1 SEC ↗
45 Invesco Ltd. 14.91M $1.00B 0.1% n/c 1 SEC ↗
46 Baillie Gifford 12.93M +56.9% $869.63M 0.7% ▲ Add 7 SEC ↗
47 Baillie Gifford 12.93M +56.9% $869.63M 0.7% ▲ Add 7 SEC ↗
48 Baillie Gifford 12.93M +56.9% $869.63M 0.7% ▲ Add 7 SEC ↗
49 Baillie Gifford 12.93M +56.9% $869.63M 0.7% ▲ Add 7 SEC ↗
50 Geode Capital Management (passive) 12.18M -3.3% $816.24M 0.1% ▼ Trim 7 SEC ↗
51 Geode Capital Management (passive) 12.18M -3.3% $816.24M 0.1% ▼ Trim 7 SEC ↗
52 Capital International Investors 10.84M $729.02M 0.1% n/c 1 SEC ↗
53 Janus Henderson Group Plc 7.47M $502.49M 0.2% n/c 1 SEC ↗
54 Janus Henderson Group Plc 7.47M $502.49M 0.2% n/c 1 SEC ↗
55 Janus Henderson Group Plc 7.47M $502.49M 0.2% n/c 1 SEC ↗
56 Janus Henderson Group Plc 7.47M $502.49M 0.2% n/c 1 SEC ↗
57 Janus Henderson Group Plc 7.47M $502.49M 0.2% n/c 1 SEC ↗
58 Norges Bank (passive) 7.09M New $476.76M 0.1% New 1 SEC ↗
59 Capital Research Global Investors 5.57M $374.33M 0.1% n/c 1 SEC ↗
60 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
61 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
62 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
63 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
64 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
65 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
66 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
67 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
68 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
69 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
70 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
71 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
72 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
73 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
74 Morgan Stanley 5.29M -38.1% $355.78M 0.0% ▼ Trim 2 SEC ↗
75 Amundi 4.11M $276.66M 0.1% n/c 1 SEC ↗
76 Amundi 4.11M $276.66M 0.1% n/c 1 SEC ↗
77 Amundi 4.11M $276.66M 0.1% n/c 1 SEC ↗
78 Amundi 4.11M $276.66M 0.1% n/c 1 SEC ↗
79 Amundi 4.11M $276.66M 0.1% n/c 1 SEC ↗
80 Amundi 4.11M $276.66M 0.1% n/c 1 SEC ↗
81 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
82 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
83 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
84 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
85 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
86 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
87 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
88 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
89 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
90 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
91 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
92 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
93 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
94 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
95 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
96 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
97 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
98 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
99 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗
100 Bank of New York Mellon Corp 4.11M $276.56M 0.0% n/c 1 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

Norges Bank $476.76M 0.1%

Exited

Arrowstreet Capital $38.30M 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: Q4 2025 · Methodology · Get this via the API