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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 %
Tiger Global Management
26
Tiger Global Management
New York
$261M – – –
Amundi
27
Amundi
France
$260M -$16.1M -197,818 -6%
Viking Global Investors
28
Viking Global Investors
Connecticut
$259M +$259M +3,218,568 New
Charles Schwab
29
Charles Schwab
California
$249M +$4.89M +60,792 +2%
TP
30
Third Point
New York
$248M +$89.2M +1,110,000 +56%
UBS AM
31
UBS AM
Illinois
$240M +$34.6M +430,612 +17%
William Blair & Company
32
William Blair & Company
Illinois
$231M -$2.6M -32,356 -1%
Brown Advisory
33
Brown Advisory
Maryland
$215M -$27.9M -346,698 -11%
Legal & General Group
34
Legal & General Group
United Kingdom
$201M +$9.7M +120,682 +5%
JPMorgan Chase & Co
35
JPMorgan Chase & Co
New York
$184M -$15.7M -195,011 -8%
DDC
36
DF Dent & Co
Maryland
$183M -$7.78M -96,774 -4%
BNP Paribas Asset Management
37
BNP Paribas Asset Management
France
$182M -$17.3M -215,509 -9%
Goldman Sachs
38
Goldman Sachs
New York
$176M -$41.6M -517,215 -19%
Dimensional Fund Advisors
39
Dimensional Fund Advisors
Texas
$174M +$1.79M +22,322 +1%
Fayez Sarofim & Co
40
Fayez Sarofim & Co
Texas
$173M +$946K +11,766 +0.5%
RC
41
RGM Capital
Florida
$171M -$8.43M -104,800 -5%
Mackenzie Financial
42
Mackenzie Financial
Ontario, Canada
$150M -$48.2M -599,629 -24%
CIBC Private Wealth Group
43
CIBC Private Wealth Group
Georgia
$148M +$747K +9,292 +0.5%
RP
44
Riverbridge Partners
Minnesota
$141M -$9.03M -112,327 -6%
Envestnet Asset Management
45
Envestnet Asset Management
Illinois
$140M -$3.7M -46,000 -3%
BMO
46
Beck Mack & Oliver
New York
$139M -$6.74M -83,891 -5%
Deutsche Bank
47
Deutsche Bank
Germany
$123M +$23.9M +296,661 +24%
Federated Hermes
48
Federated Hermes
Pennsylvania
$118M +$403K +5,010 +0.3%
HL
49
Harding Loevner
New Jersey
$118M +$2.17M +26,981 +2%
SP
50
ShawSpring Partners
Massachusetts
$109M +$16.7M +207,758 +18%
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