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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 %
Wells Fargo
51
Wells Fargo
California
$107M +$7.91M +98,411 +8%
Fidelity Investments
52
Fidelity Investments
Massachusetts
$104M -$27.6M -342,770 -21%
KCM
53
Kensico Capital Management
Connecticut
$103M -$3.93M -48,900 -4%
BNP Paribas Financial Markets
54
BNP Paribas Financial Markets
France
$103M -$30.7M -381,613 -23%
Swiss National Bank
55
Swiss National Bank
Switzerland
$103M +$7.12M +88,600 +7%
Royal Bank of Canada
56
Royal Bank of Canada
Ontario, Canada
$102M -$8.71M -108,379 -8%
VOYA Investment Management
57
VOYA Investment Management
Georgia
$99M +$1.06M +13,217 +1%
BCM
58
Bares Capital Management
Texas
$97.7M +$6.56M +81,650 +7%
T. Rowe Price Associates
59
T. Rowe Price Associates
Maryland
$96.1M +$12.3M +152,502 +15%
Barclays
60
Barclays
United Kingdom
$94.2M +$10.3M +127,638 +12%
IAM
61
Ion Asset Management
Israel
$94.1M +$82.7M +1,028,933 +730%
NL
62
Nuveen LLC
North Carolina
$87M +$3.01M +37,397 +4%
Ameriprise
63
Ameriprise
Minnesota
$86.7M -$116M -1,445,936 -57%
Sumitomo Mitsui Trust Group
64
Sumitomo Mitsui Trust Group
Japan
$82.1M +$1.95M +24,290 +2%
Focus Partners Wealth
65
Focus Partners Wealth
Massachusetts
$79.6M +$542K +6,744 +0.7%
CC
66
Chicago Capital
Illinois
$77.5M +$1.63M +20,335 +2%
SCM
67
SG Capital Management
Illinois
$75.6M +$75.6M +940,155 New
Mitsubishi UFJ Asset Management
68
Mitsubishi UFJ Asset Management
Japan
$74.5M +$4.7M +58,463 +7%
Baird Financial Group
69
Baird Financial Group
Wisconsin
$74M -$3.34M -41,500 -4%
D.E. Shaw & Co
70
D.E. Shaw & Co
New York
$73.7M -$24.4K -304 -0%
Pictet Asset Management
71
Pictet Asset Management
Switzerland
$73.6M -$1.13M -14,030 -2%
Citigroup
72
Citigroup
New York
$66.9M +$10.7M +133,262 +19%
TCM
73
TimesSquare Capital Management
New York
$65.1M +$4.61M +57,309 +8%
SCM
74
Spyglass Capital Management
California
$64.6M +$24.7M +307,424 +62%
ACM
75
American Capital Management
New York
$64M -$11.4M -142,181 -15%
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