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CoStar Group

902 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, 360 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 (+$697M)

3.07% less ownership

Funds ownership: 100.68%97.61% (-3.1%)

4% less funds holding in top 10

Funds holding in top 10: 2625 (-1)

Holders
902
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
226
$8.31M
227
$8.27M
228
$8.2M
229
$8.18M
230
$7.99M
231
$7.76M
232
$7.71M
233
$7.62M
234
$7.45M
235
$7.35M
236
$7.19M
237
$7.09M
238
$7.09M
239
$7.06M
240
$7M
241
$6.91M
242
$6.89M
243
$6.83M
244
$6.76M
245
$6.74M
246
$6.65M
247
$6.56M
248
$6.49M
249
$6.49M
250
$6.49M