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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