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CoStar Group

903 hedge funds and large institutions have $34.9B invested in CoStar Group in 2025 Q3 according to their latest regulatory filings, with 108 funds opening new positions, 361 increasing their positions, 314 reducing their positions, and 63 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

2% more capital invested

Capital invested by funds: $34.2B → $34.9B (+$698M)

3.07% less ownership

Funds ownership: 100.7%97.63% (-3.1%)

4% less funds holding in top 10

Funds holding in top 10: 2625 (-1)

Holders
903
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
25
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$199M
Puts
$81.5M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
351
$2.7M
352
$2.68M
353
$2.66M
354
$2.64M
355
$2.6M
356
$2.54M
357
$2.53M
358
$2.53M
359
$2.49M
360
$2.44M
361
$2.41M
362
$2.39M
363
$2.38M
364
$2.38M
365
$2.33M
366
$2.33M
367
$2.33M
368
$2.32M
369
$2.26M
370
$2.24M
371
$2.24M
372
$2.24M
373
$2.23M
374
$2.22M
375
$2.21M