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CoStar Group

838 hedge funds and large institutions have $27.8B invested in CoStar Group in 2025 Q4 according to their latest regulatory filings, with 99 funds opening new positions, 273 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: 273 | Existing positions reduced: 383

30% less first-time investments, than exits

New positions opened: 99 | Existing positions closed: 141

32% less funds holding in top 10

Funds holding in top 10: 2517 (-8)

Holders
838
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
$207M
Puts
$111M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
VU
201
Vanderbilt University
Tennessee
$8.56M
Ohio Public Employees Retirement System (OPERS)
202
Ohio Public Employees Retirement System (OPERS)
Ohio
$8.53M
RAM
203
Resona Asset Management
Japan
$8.43M
LIP
204
Lighthouse Investment Partners
Florida
$8.37M
Daiwa Securities Group
205
Daiwa Securities Group
Japan
$8.37M
Thrivent Financial for Lutherans
206
Thrivent Financial for Lutherans
Minnesota
$8.16M
Handelsbanken Fonder
207
Handelsbanken Fonder
Sweden
$7.97M
CC
208
Clearline Capital
New York
$7.94M
LPL Financial
209
LPL Financial
California
$7.9M
SOMRS
210
State of Michigan Retirement System
Michigan
$7.85M
ASRS
211
Arizona State Retirement System
Arizona
$7.83M
NAM
212
Nissay Asset Management
Japan
$7.73M
FAM
213
Fred Alger Management
New York
$7.55M
CNB
214
Czech National Bank
Czech Republic
$7.51M
GC
215
Guggenheim Capital
Illinois
$7.32M
NOCM
216
Night Owl Capital Management
Connecticut
$7.3M
2
217
2Xideas
Switzerland
$7.28M
Public Sector Pension Investment Board (PSP Investments)
218
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$7.26M
State of Tennessee, Department of Treasury
219
State of Tennessee, Department of Treasury
Tennessee
$7.16M
KLWA
220
Kelly Lawrence W & Associates
California
$7.15M
AAIS
221
ABN AMRO Investment Solutions
$7.02M
MIM
222
MetLife Investment Management
New Jersey
$6.99M
GC
223
Greenvale Capital
United Kingdom
$6.72M
COPPSERS
224
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$6.63M
ACIM
225
Azimuth Capital Investment Management
Michigan
$6.32M