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CoStar Group

834 hedge funds and large institutions have $27.8B invested in CoStar Group in 2025 Q4 according to their latest regulatory filings, with 96 funds opening new positions, 272 increasing their positions, 383 reducing their positions, and 141 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

less ownership

Funds ownership:

less funds holding

Funds holding:

less capital invested

Capital invested by funds: $ → $

29% less repeat investments, than reductions

Existing positions increased: 272 | Existing positions reduced: 383

32% less first-time investments, than exits

New positions opened: 96 | Existing positions closed: 141

32% less funds holding in top 10

Funds holding in top 10: 2517 (-8)

Holders
834
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
17
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$205M
Puts
$111M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
RAM
201
Resona Asset Management
Japan
$8.43M
LIP
202
Lighthouse Investment Partners
Florida
$8.37M
Daiwa Securities Group
203
Daiwa Securities Group
Japan
$8.37M
Thrivent Financial for Lutherans
204
Thrivent Financial for Lutherans
Minnesota
$8.16M
Handelsbanken Fonder
205
Handelsbanken Fonder
Sweden
$7.97M
CC
206
Clearline Capital
New York
$7.94M
LPL Financial
207
LPL Financial
California
$7.9M
SOMRS
208
State of Michigan Retirement System
Michigan
$7.85M
ASRS
209
Arizona State Retirement System
Arizona
$7.83M
NAM
210
Nissay Asset Management
Japan
$7.73M
FAM
211
Fred Alger Management
New York
$7.55M
CNB
212
Czech National Bank
Czech Republic
$7.51M
GC
213
Guggenheim Capital
Illinois
$7.32M
NOCM
214
Night Owl Capital Management
Connecticut
$7.3M
2
215
2Xideas
Switzerland
$7.28M
Public Sector Pension Investment Board (PSP Investments)
216
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$7.26M
State of Tennessee, Department of Treasury
217
State of Tennessee, Department of Treasury
Tennessee
$7.16M
KLWA
218
Kelly Lawrence W & Associates
California
$7.15M
AAIS
219
ABN AMRO Investment Solutions
$7.02M
MIM
220
MetLife Investment Management
New Jersey
$6.99M
GC
221
Greenvale Capital
United Kingdom
$6.72M
COPPSERS
222
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$6.63M
ACIM
223
Azimuth Capital Investment Management
Michigan
$6.32M
ET
224
Equitable Trust
Tennessee
$6.29M
KBC Group
225
KBC Group
Belgium
$6.29M