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CoStar Group

867 hedge funds and large institutions have $34.2B invested in CoStar Group in 2025 Q2 according to their latest regulatory filings, with 98 funds opening new positions, 352 increasing their positions, 316 reducing their positions, and 75 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
867
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
$1.53K
827
$1.53K
828
$1.45K
829
$1.29K
830
$1.21K
831
$1.21K
832
$1.13K
833
$1.13K
834
$1.05K
835
$1.02K
836
$1K
837
$1K
838
$965
839
$965
840
$884
841
$804
842
$804
843
$804
844
$773
845
$736
846
$643
847
$643
848
$563
849
$483
850
$483