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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
276
$4.6M
277
$4.6M
278
$4.6M
279
$4.57M
280
$4.51M
281
$4.36M
282
$4.33M
283
$4.33M
284
$4.28M
285
$4.13M
286
$4.07M
287
$4.04M
288
$4.01M
289
$3.96M
290
$3.92M
291
$3.88M
292
$3.83M
293
$3.81M
294
$3.8M
295
$3.76M
296
$3.74M
297
$3.73M
298
$3.72M
299
$3.67M
300
$3.63M