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CoStar Group
CSGP

Overview Fund Activity

845 hedge funds and large institutions have $33.5B invested in CoStar Group in 2025 Q1 according to their latest regulatory filings, with 141 funds opening new positions, 371 increasing their positions, 258 reducing their positions, and 75 closing their positions.

Holders
845
Holders Change
+53
Holders Change %
+6.69%
% of All Funds
11.48%
Holding in Top 10
23
Holding in Top 10 Change
+7
Holding in Top 10 Change %
+43.75%
% of All Funds
0.31%
New
141
Increased
371
Reduced
258
Closed
75
Calls
$337M
Puts
$119M
Net Calls
+$218M
Net Calls Change
+$204M

Top Buyers

1
MMA
1
Mizuho Markets Americas
New York
$586M
2
Morgan Stanley
2
Morgan Stanley
New York
$627M
3
TCIM
3
TOMS Capital Investment Management
New York
$278M
4
UBS Group
4
UBS Group
Switzerland
$376M
5
Vanguard Group
5
Vanguard Group
Pennsylvania
$5.42B

Top Sellers

1
Macquarie Group
1
Macquarie Group
Australia
$489M
2
Viking Global Investors
2
Viking Global Investors
Connecticut
$0
3
Goldman Sachs
3
Goldman Sachs
New York
$214M
4
SCM
4
Spyglass Capital Management
California
$39.3M
5
Canada Pension Plan Investment Board
5
Canada Pension Plan Investment Board
Ontario, Canada
$37M
Name Market Value Shares Shares
Change 		Shares
Change %
RhumbLine Advisers
76
RhumbLine Advisers
Massachusetts
$60.9M 768,366 +54,747 +8%
HSBC Holdings
77
HSBC Holdings
United Kingdom
$60.2M 760,291 -135,558 -15%
TCM
78
TimesSquare Capital Management
New York
$59.7M 752,887 +83,901 +13%
PCM
79
Peregrine Capital Management
Minnesota
$58.6M 739,397 +140,742 +24%
SIMG
80
Stephens Investment Management Group
Texas
$58.5M 738,837 +125,568 +20%
CI Investments Inc
81
CI Investments Inc
Ontario, Canada
$57.6M 727,117 +22,110 +3%
TD Asset Management
82
TD Asset Management
Ontario, Canada
$56.6M 714,581 +17,141 +2%
Citigroup
83
Citigroup
New York
$55.4M 699,425 +105,287 +18%
California State Teachers Retirement System (CalSTRS)
84
California State Teachers Retirement System (CalSTRS)
California
$55.2M 696,449 +15,864 +2%
Raymond James Financial
85
Raymond James Financial
Florida
$54.4M 686,911 +44,465 +7%
SEI Investments
86
SEI Investments
Pennsylvania
$53.9M 680,885 +26,170 +4%
California Public Employees Retirement System
87
California Public Employees Retirement System
California
$50M 630,649 -9,175 -1%
OCBV
88
Ownership Capital B.V.
Netherlands
$49.6M 625,788 -412,599 -40%
ProShare Advisors
89
ProShare Advisors
Maryland
$48.9M 617,771 +75,736 +14%
Natixis Advisors
90
Natixis Advisors
Massachusetts
$47.1M 594,602 +55,589 +10%
DLA
91
Douglas Lane & Associates
New York
$44.1M 556,751 +173,367 +45%
National Pension Service
92
National Pension Service
South Korea
$42.6M 537,062 +45,316 +9%
QCMNJ
93
Quantum Capital Management (New Jersey)
New Jersey
$41.8M 528,206 -9,845 -2%
Mitsubishi UFJ Trust & Banking
94
Mitsubishi UFJ Trust & Banking
Japan
$40.9M 516,769 -23,830 -4%
TAM
95
Telemark Asset Management
Massachusetts
$39.6M 500,000 +100,000 +25%
SCM
96
Spyglass Capital Management
California
$39.3M 495,858 -725,749 -59%
Arrowstreet Capital
97
Arrowstreet Capital
Massachusetts
$39M 492,279 +467,702 +1,903%
AllianceBernstein
98
AllianceBernstein
Tennessee
$37.8M 477,506 +9,105 +2%
Allspring Global Investments
99
Allspring Global Investments
North Carolina
$37.7M 476,245 -6,467 -1%
Canada Pension Plan Investment Board
100
Canada Pension Plan Investment Board
Ontario, Canada
$37M 467,135 -662,172 -59%
2 3
4
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