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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
651
$226K
652
$225K
653
$224K
654
$219K
655
$218K
656
$216K
657
$215K
658
$214K
659
$214K
660
$214K
661
$214K
662
$213K
663
$213K
664
$211K
665
$207K
666
$205K
667
$205K
668
$205K
669
$204K
670
$204K
671
$201K
672
$169K
673
$166K
674
$162K
675
$161K