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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
501
$646K
502
$632K
503
$631K
504
$630K
505
$629K
506
$628K
507
$627K
508
$619K
509
$618K
510
$609K
511
$603K
512
$599K
513
$599K
514
$591K
515
$583K
516
$576K
517
$570K
518
$548K
519
$546K
520
$545K
521
$542K
522
$540K
523
$539K
524
$538K
525
$537K