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CoStar Group
CSGP

Overview Fund Activity

857 hedge funds and large institutions have $34.1B invested in CoStar Group in 2025 Q2 according to their latest regulatory filings, with 97 funds opening new positions, 347 increasing their positions, 313 reducing their positions, and 74 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
857
Holders Change
+12
Holders Change %
+1.42%
% of All Funds
11.49%
Holding in Top 10
26
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+13.04%
% of All Funds
0.35%
New
97
Increased
347
Reduced
313
Closed
74
Calls
$180M
Puts
$97.5M
Net Calls
+$82.6M
Net Calls Change
-$135M

Top Buyers

1
Janus Henderson Group
Janus Henderson Group
United Kingdom
$324M
2
Viking Global Investors
Viking Global Investors
Connecticut
$259M
3
Franklin Resources
Franklin Resources
California
$277M
4
TP
Third Point
New York
$248M
5
IAM
Ion Asset Management
Israel
$94.1M

Top Sellers

1
TCIM
TOMS Capital Investment Management
New York
$0
2
BlackRock
BlackRock
New York
$2.82B
3
MMA
Mizuho Markets Americas
New York
$471M
4
Ameriprise
Ameriprise
Minnesota
$86.7M
5
Macquarie Group
Macquarie Group
Australia
$389M
Name Holding Trade Value Shares
Change 		Shares
Change %
BCI
326
Brinker Capital Investments
Pennsylvania
$2.82M -$403K -5,015 -13%
NSAM
327
North Star Asset Management
Wisconsin
$2.77M -$949K -11,804 -25%
DADC
328
D.A. Davidson & Co
Montana
$2.77M +$89K +1,107 +3%
FG
329
Formula Growth
Quebec, Canada
$2.73M – – –
P
330
Pitcairn
Pennsylvania
$2.73M -$902K -11,223 -25%
LRPA
331
L. Roy Papp & Associates
Arizona
$2.72M +$47.6K +592 +2%
XT
332
XTX Topco
Cayman Islands
$2.7M +$2.7M +33,633 New
CF
333
Centaurus Financial
California
$2.7M +$957K +11,904 +55%
SSA
334
Schonfeld Strategic Advisors
New York
$2.69M +$1.11M +13,803 +70%
TAF
335
Tredje AP-fonden
Sweden
$2.58M – – –
BOC
336
Barbara Oil Co
Illinois
$2.57M – – –
SFI
337
Susquehanna Fundamental Investments
Pennsylvania
$2.55M -$22.3M -277,507 -90%
SI
338
Stephens Inc
Arkansas
$2.55M -$103K -1,284 -4%
CHP
339
Castle Hook Partners
New York
$2.54M +$2.54M +31,593 New
Citadel Advisors
340
Citadel Advisors
Florida
$2.53M -$969K -12,047 -28%
SC
341
Scotia Capital
Ontario, Canada
$2.53M +$15.2K +189 +0.6%
BWG
342
Boomfish Wealth Group
Georgia
$2.52M +$63K +784 +3%
NW
343
NewEdge Wealth
Pennsylvania
$2.51M +$1.75M +18,335 +230%
BPC
344
Banque Pictet & Cie
Switzerland
$2.41M – – –
PS
345
Principal Securities
Iowa
$2.39M +$173K +2,157 +8%
CAPTRUST Financial Advisors
346
CAPTRUST Financial Advisors
North Carolina
$2.39M +$90.5K +1,125 +4%
FDCDDQ
347
Federation des caisses Desjardins du Quebec
Quebec, Canada
$2.38M +$1.13K +14 +0%
MSU
348
Mizuho Securities USA
New York
$2.34M -$368K -4,582 -14%
CM
349
Caption Management
Oklahoma
$2.33M +$1.09M +13,552 +88%
IWA
350
Icon Wealth Advisors
Texas
$2.32M +$517K +6,432 +29%
12 13
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