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CoStar Group

871 hedge funds and large institutions have $34.2B invested in CoStar Group in 2025 Q2 according to their latest regulatory filings, with 99 funds opening new positions, 354 increasing their positions, 317 reducing their positions, and 75 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
871
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
26
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$180M
Puts
$97.5M
Net Calls
Net Calls Change

Top Buyers

1 +$310M
2 +$251M
3 +$111M
4
TP
Third Point
New York
+$86.5M
5
IAM
Ion Asset Management
Israel
+$80.2M
Name Holding Trade Value Shares
Change
Change in
Stake
451
$1.07M
452
$1.07M
453
$1.07M
454
$1.06M
455
$1.05M
456
$1.05M
457
$1.01M
458
$995K
459
$989K
460
$973K
461
$967K
462
$966K
463
$952K
464
$945K
465
$941K
466
$927K
467
$927K
468
$925K
469
$920K
470
$920K
471
$918K
472
$913K
473
$912K
474
$908K
475
$894K