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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
476
$789K
477
$784K
478
$771K
479
$766K
480
$764K
481
$759K
482
$755K
483
$740K
484
$736K
485
$731K
486
$726K
487
$720K
488
$713K
489
$698K
490
$696K
491
$692K
492
$691K
493
$684K
494
$678K
495
$673K
496
$655K
497
$653K
498
$652K
499
$647K
500
$647K