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CoStar Group

853 hedge funds and large institutions have $33.5B invested in CoStar Group in 2025 Q1 according to their latest regulatory filings, with 139 funds opening new positions, 376 increasing their positions, 261 reducing their positions, and 75 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
853
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
23
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$337M
Puts
$119M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
551
$450K
552
$448K
553
$435K
554
$432K
555
$431K
556
$421K
557
$421K
558
$421K
559
$420K
560
$417K
561
$417K
562
$415K
563
$413K
564
$411K
565
$406K
566
$398K
567
$391K
568
$379K
569
$379K
570
$376K
571
$368K
572
$365K
573
$363K
574
$360K
575
$352K