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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
576
$494K
577
$489K
578
$486K
579
$482K
580
$476K
581
$468K
582
$466K
583
$464K
584
$462K
585
$456K
586
$452K
587
$449K
588
$445K
589
$443K
590
$442K
591
$439K
592
$438K
593
$438K
594
$435K
595
$430K
596
$424K
597
$411K
598
$410K
599
$405K
600
$402K