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CoStar Group

791 hedge funds and large institutions have $16.4B invested in CoStar Group in 2026 Q1 according to their latest regulatory filings, with 125 funds opening new positions, 307 increasing their positions, 276 reducing their positions, and 164 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

24% less first-time investments, than exits

New positions opened: 125 | Existing positions closed: 164

41% less capital invested

Capital invested by funds: $27.8B → $16.4B (-$11.3B)

59% less funds holding in top 10

Funds holding in top 10: 177 (-10)

Holders
791
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$142M
Puts
$39.3M
Net Calls
Net Calls Change

Top Sellers

1 -$302M
2 -$233M
3 -$216M
4
TP
Third Point
New York
-$213M
5
BAMCO Inc
BAMCO Inc
New York
-$166M
Name Holding Trade Value Shares
Change
Change in
Stake
KK
176
KLP Kapitalforvaltning
Norway
$6.18M
MFWM
177
Motley Fool Wealth Management
Virginia
$6.17M
State of New Jersey Common Pension Fund D
178
State of New Jersey Common Pension Fund D
New Jersey
$5.86M
Natixis Advisors
179
Natixis Advisors
Massachusetts
$5.83M
NIM
180
Needham Investment Management
New York
$5.73M
Credit Agricole
181
Credit Agricole
France
$5.66M
LF
182
Lansforsakringar Fondforvaltning
Sweden
$5.58M
PP
183
PensionDanmark Pensionsforsikringsaktieselskab
Denmark
$5.57M
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
184
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$5.52M
Cetera Investment Advisers
185
Cetera Investment Advisers
Illinois
$5.5M
LI
186
Louisbourg Investments
New Brunswick, Canada
$5.39M
Toronto Dominion Bank
187
Toronto Dominion Bank
Ontario, Canada
$5.33M
Daiwa Securities Group
188
Daiwa Securities Group
Japan
$5.32M
RAM
189
Resona Asset Management
Japan
$5.3M
FAF
190
Fjarde Ap-fonden
Sweden
$5.28M
Jones Financial Companies
191
Jones Financial Companies
Missouri
$5.26M
ER
192
EVR Research
Virginia
$5.24M
TC
193
TwinBeech Capital
New York
$5.16M
AI
194
ArchPoint Investors
Florida
$5.12M
HighTower Advisors
195
HighTower Advisors
Illinois
$5.01M
Millennium Management
196
Millennium Management
New York
$4.99M
Ohio Public Employees Retirement System (OPERS)
197
Ohio Public Employees Retirement System (OPERS)
Ohio
$4.96M
Handelsbanken Fonder
198
Handelsbanken Fonder
Sweden
$4.92M
Public Sector Pension Investment Board (PSP Investments)
199
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$4.87M
LIP
200
Landmark Investment Partners
Florida
$4.84M