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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 %
Northwestern Mutual Wealth Management
226
Northwestern Mutual Wealth Management
Wisconsin
$7.2M -$5.15K -64 -0.1%
HFS
227
Hantz Financial Services
Michigan
$7.1M +$270K +3,364 +4%
Primecap Management
228
Primecap Management
California
$7.08M +$2.53M +31,500 +56%
Skandinaviska Enskilda Banken (SEB)
229
Skandinaviska Enskilda Banken (SEB)
Sweden
$7.07M +$273K +3,400 +4%
QCM
230
Quantinno Capital Management
New York
$7.01M +$2.23M +27,712 +47%
Wellington Management Group
231
Wellington Management Group
Massachusetts
$6.98M -$529K -6,578 -7%
Public Sector Pension Investment Board (PSP Investments)
232
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$6.98M -$2.08M -25,893 -23%
GFM
233
GF Fund Management
China
$6.76M +$404K +5,023 +6%
FRAF
234
Första AP-fonden
Sweden
$6.72M +$434K +5,400 +7%
Bank Julius Baer & Co
235
Bank Julius Baer & Co
Switzerland
$6.68M -$1.24M -15,370 -16%
AB
236
Amalgamated Bank
New York
$6.65M +$103K +1,280 +2%
Robeco Institutional Asset Management
237
Robeco Institutional Asset Management
Netherlands
$6.64M -$914K -11,371 -12%
SO
238
STRS Ohio
Ohio
$6.51M +$802K +9,981 +14%
NCM
239
Narwhal Capital Management
Georgia
$6.47M -$493K -6,131 -7%
II
240
IFM Investors
Australia
$6.44M +$360K +4,476 +6%
Comerica Bank
241
Comerica Bank
Texas
$6.42M -$246K -3,056 -4%
DnB Asset Management
242
DnB Asset Management
Norway
$6.33M -$7.44M -92,567 -54%
GIM
243
Generate Investment Management
New Zealand
$6.31M +$6.31M +78,427 New
FAF
244
Fjarde Ap-fonden
Sweden
$6.22M +$884K +11,000 +17%
JFG
245
Jefferies Financial Group
New York
$6.15M -$2.7M -33,564 -30%
Westfield Capital Management
246
Westfield Capital Management
Massachusetts
$5.99M -$43.1K -536 -0.7%
UIM
247
USS Investment Management
United Kingdom
$5.92M – – –
SCM
248
Sterling Capital Management
North Carolina
$5.89M -$206K -2,561 -3%
SW
249
Solidarity Wealth
Utah
$5.84M +$275K +3,418 +5%
American Century Companies
250
American Century Companies
Missouri
$5.67M +$183K +2,276 +3%
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