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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
826
$1.85K
827
$1.85K
828
$1.61K
829
$1.61K
830
$1.53K
831
$1.53K
832
$1.45K
833
$1.29K
834
$1.21K
835
$1.21K
836
$1.13K
837
$1.13K
838
$1.05K
839
$1.02K
840
$1K
841
$1K
842
$965
843
$965
844
$884
845
$804
846
$804
847
$804
848
$773
849
$736
850
$643