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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
401
$1.77M
402
$1.75M
403
$1.72M
404
$1.72M
405
$1.7M
406
$1.69M
407
$1.67M
408
$1.67M
409
$1.66M
410
$1.66M
411
$1.64M
412
$1.63M
413
$1.63M
414
$1.63M
415
$1.61M
416
$1.6M
417
$1.58M
418
$1.58M
419
$1.55M
420
$1.54M
421
$1.52M
422
$1.49M
423
$1.47M
424
$1.46M
425
$1.44M