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CoStar Group

844 hedge funds and large institutions have $27.8B invested in CoStar Group in 2025 Q4 according to their latest regulatory filings, with 102 funds opening new positions, 274 increasing their positions, 385 reducing their positions, and 142 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: $ → $

28% less first-time investments, than exits

New positions opened: 102 | Existing positions closed: 142

29% less repeat investments, than reductions

Existing positions increased: 274 | Existing positions reduced: 385

32% less funds holding in top 10

Funds holding in top 10: 2517 (-8)

Holders
844
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
YCM
301
Yousif Capital Management
Michigan
$2.77M
LTAS
302
Linden Thomas Advisory Services
North Carolina
$2.74M
AI
303
Atria Investments
North Carolina
$2.74M
TAF
304
Tredje AP-fonden
Sweden
$2.74M
PA
305
Profund Advisors
Maryland
$2.73M
MFAM
306
Motley Fool Asset Management
Virginia
$2.71M
Northwestern Mutual Wealth Management
307
Northwestern Mutual Wealth Management
Wisconsin
$2.68M
OSAM
308
O'Shaughnessy Asset Management
Connecticut
$2.68M
OC
309
Oppenheimer & Co
New York
$2.68M
NB
310
Norinchukin Bank
Japan
$2.64M
SSA
311
Schonfeld Strategic Advisors
New York
$2.64M
SLAM
312
Swiss Life Asset Management
$2.63M
Janney Montgomery Scott
313
Janney Montgomery Scott
Pennsylvania
$2.63M
IMCOOI
314
Investment Management Corp of Ontario (IMCO)
Canada
$2.61M
NSAM
315
North Star Asset Management
Wisconsin
$2.59M
Cambridge Investment Research Advisors
316
Cambridge Investment Research Advisors
Iowa
$2.54M
KC
317
Katamaran Capital
United Kingdom
$2.46M
QIM
318
Quantitative Investment Management
Virginia
$2.4M
BWG
319
Boomfish Wealth Group
Georgia
$2.32M
WAM
320
Weiss Asset Management
Massachusetts
$2.31M
ECM
321
EagleClaw Capital Management
Massachusetts
$2.3M
FG
322
Formula Growth
Quebec, Canada
$2.29M
AC
323
Allstate Corporation
Illinois
$2.28M
DADC
324
D.A. Davidson & Co
Montana
$2.26M
Nisa Investment Advisors
325
Nisa Investment Advisors
Missouri
$2.25M