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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
326
$2.85M
327
$2.82M
328
$2.78M
329
$2.7M
330
$2.69M
331
$2.68M
332
$2.67M
333
$2.64M
334
$2.63M
335
$2.62M
336
$2.61M
337
$2.61M
338
$2.61M
339
$2.55M
340
$2.54M
341
$2.54M
342
$2.5M
343
$2.49M
344
$2.48M
345
$2.45M
346
$2.42M
347
$2.4M
348
$2.38M
349
$2.35M
350
$2.3M