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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
501
$647K
502
$647K
503
$646K
504
$632K
505
$631K
506
$630K
507
$629K
508
$628K
509
$627K
510
$619K
511
$618K
512
$609K
513
$603K
514
$599K
515
$599K
516
$591K
517
$583K
518
$576K
519
$570K
520
$548K
521
$546K
522
$545K
523
$542K
524
$540K
525
$539K