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CoStar Group

852 hedge funds and large institutions have $33.5B invested in CoStar Group in 2025 Q1 according to their latest regulatory filings, with 140 funds opening new positions, 375 increasing their positions, 261 reducing their positions, and 75 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
852
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
26
$240M
27
$239M
28
$230M
29
$214M
30
$202M
31
$200M
32
$197M
33
$197M
34
$195M
35
$189M
36
$188M
37
$176M
38
$170M
39
$170M
40
$160M
41
$156M
42
$148M
43
$143M
44
$141M
45
$134M
46
$132M
47
$130M
48
$116M
49
$114M
50
$110M