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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
MSE
401
MUFG Securities EMEA
United Kingdom
$1.17M
DILIC
402
Dai-ichi Life Insurance Company
Japan
$1.17M
MMEA
403
Main Management ETF Advisors
California
$1.16M
CFO
404
Callan Family Office
Pennsylvania
$1.15M
OAC
405
OMERS Administration Corp
Ontario, Canada
$1.15M
SC
406
Skylands Capital
Wisconsin
$1.15M
LOAMS
407
Lombard Odier Asset Management (Switzerland)
Switzerland
$1.13M
EMPI
408
Elo Mutual Pension Insurance
Finland
$1.12M
EOJOAM
409
E. Ohman J:or Asset Management
Sweden
$1.12M
MCM
410
Mattern Capital Management
Colorado
$1.11M
CPIG
411
Chicago Partners Investment Group
Illinois
$1.1M
KeyBank National Association
412
KeyBank National Association
Ohio
$1.1M
LC
413
Lincoln Capital
Nebraska
$1.1M
TMAM
414
Tokio Marine Asset Management
Japan
$1.09M
Verition Fund Management
415
Verition Fund Management
Connecticut
$1.08M
RWB
416
RMR Wealth Builders
New Jersey
$1.08M
BEI
417
Benjamin Edwards Inc
Missouri
$1.08M
EP
418
Edgestream Partners
New Jersey
$1.06M
IFWM
419
Institute for Wealth Management
Colorado
$1.05M
RAM
420
Redmond Asset Management
Virginia
$1.03M
FDCDDQ
421
Federation des caisses Desjardins du Quebec
Quebec, Canada
$1M
GC
422
Guidance Capital
Kentucky
$996K
IC
423
IEQ Capital
California
$980K
STA
424
Summit Trail Advisors
New York
$972K
KAS
425
Kestra Advisory Services
Texas
$965K