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CoStar Group

871 hedge funds and large institutions have $34.2B invested in CoStar Group in 2025 Q2 according to their latest regulatory filings, with 99 funds opening new positions, 354 increasing their positions, 317 reducing their positions, and 75 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
871
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 +$310M
2 +$251M
3 +$111M
4
TP
Third Point
New York
+$86.5M
5
IAM
Ion Asset Management
Israel
+$80.2M
Name Holding Trade Value Shares
Change
Change in
Stake
801
$4.38K
802
$4.34K
803
$4.02K
804
$4.02K
805
$4.02K
806
$3.91K
807
$3.46K
808
$3.46K
809
$3.3K
810
$3.06K
811
$2.81K
812
$2.65K
813
$2.57K
814
$2.57K
815
$2.57K
816
$2.57K
817
$2.57K
818
$2.49K
819
$2.41K
820
$2.17K
821
$2.09K
822
$2.01K
823
$2K
824
$1.93K
825
$1.85K