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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
326
$3.28M
327
$3.25M
328
$3.23M
329
$3.22M
330
$3.19M
331
$3.17M
332
$3.17M
333
$3.14M
334
$3.06M
335
$3.04M
336
$3M
337
$2.95M
338
$2.92M
339
$2.87M
340
$2.86M
341
$2.86M
342
$2.83M
343
$2.83M
344
$2.8M
345
$2.79M
346
$2.76M
347
$2.76M
348
$2.74M
349
$2.74M
350
$2.71M