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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 %
WB
776
Webster Bank
Connecticut
$7.08K +$7.08K +88 New
MAFA
777
MJT & Associates Financial Advisory
Minnesota
$6.59K – – –
MCM
778
Manchester Capital Management
Vermont
$6.59K +$402 +5 +6%
AF
779
Advisornet Financial
Minnesota
$6.43K -$643 -8 -9%
LWCFA
780
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$6.43K – – –
FMP
781
Financial Management Professionals
Texas
$6.43K +$482 +6 +8%
HWA
782
Heritage Wealth Advisors
Virginia
$6.11K – – –
TCOV
783
Trust Company of Vermont
Vermont
$6.03K – – –
FMTCOCP
784
Farmers & Merchants Trust Co of Chambersburg PA
Pennsylvania
$5K – – –
AW
785
Avion Wealth
Texas
$5K +$4K +56 +400%
DIP
786
DT Investment Partners
Pennsylvania
$4.99K – – –
RS
787
Rakuten Securities
Japan
$4.9K +$884 +11 +22%
S
788
Sachetta
Massachusetts
$4.82K +$161 +2 +3%
BAM
789
Bellevue Asset Management
Washington
$4.42K -$80 -1 -2%
TWD
790
True Wealth Design
Ohio
$4.38K +$1.38K +17 +46%
FFO
791
Fortitude Family Office
Arizona
$4.34K +$3.46K +43 +391%
RTL
792
Red Tortoise LLC
Georgia
$4.02K – – –
VWA
793
Valued Wealth Advisors
Utah
$4.02K – – –
SL
794
Salomon & Ludwin
Virginia
$3.91K +$3.91K +48 New
CA
795
CoreCap Advisors
Michigan
$3.46K -$2.41K -30 -41%
BGAI
796
Bruce G. Allen Investments
Colorado
$3.46K +$1.77K +22 +105%
CTB
797
Country Trust Bank
Illinois
$3.3K +$3.3K +41 New
ACM
798
Accent Capital Management
Ohio
$3.06K – – –
GK
799
Graney & King
New York
$2.81K – – –
HWP
800
Highline Wealth Partners
California
$2.65K -$7.16K -89 -73%
30 31
32
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