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CoStar Group
CSGP

Overview Fund Activity

857 hedge funds and large institutions have $34.1B invested in CoStar Group in 2025 Q2 according to their latest regulatory filings, with 97 funds opening new positions, 347 increasing their positions, 313 reducing their positions, and 74 closing their positions.

Holders
857
Holders Change
+12
Holders Change %
+1.42%
% of All Funds
11.5%
Holding in Top 10
26
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+13.04%
% of All Funds
0.35%
New
97
Increased
347
Reduced
313
Closed
74
Calls
$180M
Puts
$97.5M
Net Calls
+$82.6M
Net Calls Change
-$135M

Top Buyers

1
Janus Henderson Group
1
Janus Henderson Group
United Kingdom
$324M
2
Viking Global Investors
2
Viking Global Investors
Connecticut
$259M
3
Franklin Resources
3
Franklin Resources
California
$277M
4
TP
4
Third Point
New York
$248M
5
IAM
5
Ion Asset Management
Israel
$94.1M

Top Sellers

1
TCIM
1
TOMS Capital Investment Management
New York
$0
2
BlackRock
2
BlackRock
New York
$2.82B
3
MMA
3
Mizuho Markets Americas
New York
$471M
4
Ameriprise
4
Ameriprise
Minnesota
$86.7M
5
Macquarie Group
5
Macquarie Group
Australia
$389M
Name Holding Trade Value Shares
Change 		Shares
Change %
Vanguard Group
1
Vanguard Group
Pennsylvania
$5.54B +$33.8M +420,772 +0.6%
BlackRock
2
BlackRock
New York
$2.82B -$194M -2,418,184 -6%
BAMCO Inc
3
BAMCO Inc
New York
$1.58B +$52.1M +647,413 +3%
Principal Financial Group
4
Principal Financial Group
Iowa
$1.5B -$29M -361,224 -2%
State Street
5
State Street
Massachusetts
$1.43B +$12.7M +158,539 +0.9%
Capital International Investors
6
Capital International Investors
California
$1.19B +$12M +149,579 +1%
Geode Capital Management
7
Geode Capital Management
Massachusetts
$990M +$23.3M +290,404 +2%
ACM
8
AKRE Capital Management
Virginia
$748M -$351K -4,360 -0%
Baillie Gifford & Co
9
Baillie Gifford & Co
United Kingdom
$687M +$8.38M +104,170 +1%
Morgan Stanley
10
Morgan Stanley
New York
$596M -$40.1M -498,615 -6%
Polen Capital Management
11
Polen Capital Management
Florida
$557M +$25.9M +322,028 +5%
Massachusetts Financial Services
12
Massachusetts Financial Services
Massachusetts
$529M -$2.72M -33,795 -0.5%
T. Rowe Price Investment Management
13
T. Rowe Price Investment Management
Maryland
$522M +$6.1M +75,928 +1%
MMA
14
Mizuho Markets Americas
New York
$471M -$124M -1,543,931 -21%
Norges Bank
15
Norges Bank
Norway
$427M +$427M +5,308,249 New
Bank of America
16
Bank of America
North Carolina
$412M -$81.4M -1,012,623 -16%
Bank of New York Mellon
17
Bank of New York Mellon
New York
$390M -$55.4M -689,102 -12%
Macquarie Group
18
Macquarie Group
Australia
$389M -$108M -1,342,269 -22%
UBS Group
19
UBS Group
Switzerland
$379M -$2.54M -31,545 -0.7%
Invesco
20
Invesco
Georgia
$357M +$10.7M +132,908 +3%
Janus Henderson Group
21
Janus Henderson Group
United Kingdom
$324M +$320M +3,982,866 +7,520%
Capital Research Global Investors
22
Capital Research Global Investors
California
$316M +$41.1M +510,710 +15%
Northern Trust
23
Northern Trust
Illinois
$311M -$13M -161,302 -4%
VVP
24
Vulcan Value Partners
Alabama
$309M -$92.9M -1,116,993 -23%
Franklin Resources
25
Franklin Resources
California
$277M +$114M +1,419,732 +70%
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