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CoStar Group

855 hedge funds and large institutions have $33.9B invested in CoStar Group in 2025 Q1 according to their latest regulatory filings, with 139 funds opening new positions, 376 increasing their positions, 263 reducing their positions, and 75 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
855
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
526
$538K
527
$537K
528
$523K
529
$522K
530
$522K
531
$508K
532
$502K
533
$499K
534
$499K
535
$498K
536
$489K
537
$489K
538
$488K
539
$487K
540
$486K
541
$485K
542
$481K
543
$476K
544
$475K
545
$473K
546
$470K
547
$463K
548
$460K
549
$460K
550
$455K