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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
11.5%
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
1
Janus Henderson Group
United Kingdom
$324M
2
Viking Global Investors
2
Viking Global Investors
Connecticut
$259M
3
Franklin Resources
3
Franklin Resources
California
$277M
4
TP
4
Third Point
New York
$248M
5
IAM
5
Ion Asset Management
Israel
$94.1M

Top Sellers

1
TCIM
1
TOMS Capital Investment Management
New York
$0
2
BlackRock
2
BlackRock
New York
$2.82B
3
MMA
3
Mizuho Markets Americas
New York
$471M
4
Ameriprise
4
Ameriprise
Minnesota
$86.7M
5
Macquarie Group
5
Macquarie Group
Australia
$389M
Name Holding Trade Value Shares
Change 		Shares
Change %
NWM
826
Nova Wealth Management
Florida
$1.02K -$1.02K -13 -50%
CAL
827
Capital Advisors Ltd
Ohio
$1K -$15.4K -169 -94%
T
828
TOBAM
France
$1K – – –
PS
829
PayPay Securities
Japan
$965 +$322 +4 +50%
TCA
830
Trifecta Capital Advisors
Illinois
$965 +$965 +12 New
RFS
831
Richardson Financial Services
Massachusetts
$884 – – –
KFI
832
Key Financial Inc
Pennsylvania
$804 – – –
WWM
833
Wolff Wiese Magana
California
$804 – – –
MSWM
834
Mowery & Schoenfeld Wealth Management
Illinois
$804 – – –
GTAM
835
Global Trust Asset Management
Florida
$773 – – –
TWC
836
TD Waterhouse Canada
Ontario, Canada
$736 – – –
PWM
837
Parkworth Wealth Management
California
$643 +$241 +3 +60%
SFCL
838
Strengthening Families & Communities LLC
Massachusetts
$563 – – –
ACA
839
American Capital Advisory
Idaho
$483 – – –
RWM
840
Rialto Wealth Management
New York
$483 +$483 +6 New
BLC
841
Brown, Lisle/Cummings
Rhode Island
$482 – – –
FW
842
Fairway Wealth
Ohio
$402 – – –
SIS
843
Sound Income Strategies
Florida
$402 +$402 +5 New
DF
844
DecisionPoint Financial
Arizona
$328 +$328 +4 New
GWP
845
Gen-Wealth Partners
Michigan
$322 – – –
TCM
846
TD Capital Management
Tennessee
$322 – – –
TFA
847
Toth Financial Advisory
Virginia
$322 – – –
TIM
848
Tortoise Investment Management
New York
$322 +$322 +4 New
VFM
849
Vision Financial Markets
Connecticut
$242 – – –
LWMI
850
Legacy Wealth Management (Idaho)
Idaho
$242 – – –
32 33
34
35 36