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CoStar Group

860 hedge funds and large institutions have $34.1B invested in CoStar Group in 2025 Q2 according to their latest regulatory filings, with 98 funds opening new positions, 347 increasing their positions, 315 reducing their positions, and 74 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
860
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
26
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$180M
Puts
$97.5M
Net Calls
Net Calls Change

Top Buyers

1 +$320M
2 +$259M
3 +$114M
4
TP
Third Point
New York
+$89.2M
5
IAM
Ion Asset Management
Israel
+$82.7M
Name Holding Trade Value Shares
Change
Change in
Stake
Mitsubishi UFJ Trust & Banking
101
Mitsubishi UFJ Trust & Banking
Japan
$38.3M
OCBV
102
Ownership Capital B.V.
Netherlands
$38.2M
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
103
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$37.1M
AllianceBernstein
104
AllianceBernstein
Tennessee
$37M
LPL Financial
105
LPL Financial
California
$37M
GCM
106
Geneva Capital Management
Wisconsin
$36M
Russell Investments Group
107
Russell Investments Group
United Kingdom
$35.9M
ICP
108
Ironvine Capital Partners
Nebraska
$35.4M
YL
109
YCG LLC
Texas
$35.3M
BA
110
Bridgewater Associates
Connecticut
$34.8M
NSGL
111
No Street GP LP
California
$34.6M
Bank of Montreal
112
Bank of Montreal
Ontario, Canada
$33.8M
National Bank of Canada
113
National Bank of Canada
Quebec, Canada
$33.4M
Canada Life
114
Canada Life
Manitoba, Canada
$33M
State Board of Administration of Florida Retirement System
115
State Board of Administration of Florida Retirement System
Florida
$32.9M
Royal London Asset Management
116
Royal London Asset Management
United Kingdom
$32.6M
QCMNJ
117
Quantum Capital Management (New Jersey)
New Jersey
$32.5M
ClearBridge Investments
118
ClearBridge Investments
New York
$32M
Adage Capital Partners
119
Adage Capital Partners
Massachusetts
$31.1M
CCP
120
Caden Capital Partners
California
$30.5M
AQR Capital Management
121
AQR Capital Management
Connecticut
$29.3M
GC
122
Gillson Capital
Illinois
$28.7M
NC
123
NZS Capital
Colorado
$28.2M
Mirae Asset Global ETFs Holdings
124
Mirae Asset Global ETFs Holdings
Hong Kong
$27.1M
Victory Capital Management
125
Victory Capital Management
Texas
$27M