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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
MMEA
401
Main Management ETF Advisors
California
$1.16M
CFO
402
Callan Family Office
Pennsylvania
$1.15M
OAC
403
OMERS Administration Corp
Ontario, Canada
$1.15M
SC
404
Skylands Capital
Wisconsin
$1.15M
LOAMS
405
Lombard Odier Asset Management (Switzerland)
Switzerland
$1.13M
EMPI
406
Elo Mutual Pension Insurance
Finland
$1.12M
EOJOAM
407
E. Ohman J:or Asset Management
Sweden
$1.12M
MCM
408
Mattern Capital Management
Colorado
$1.11M
CPIG
409
Chicago Partners Investment Group
Illinois
$1.1M
KeyBank National Association
410
KeyBank National Association
Ohio
$1.1M
LC
411
Lincoln Capital
Nebraska
$1.1M
TMAM
412
Tokio Marine Asset Management
Japan
$1.09M
Verition Fund Management
413
Verition Fund Management
Connecticut
$1.08M
RWB
414
RMR Wealth Builders
New Jersey
$1.08M
BEI
415
Benjamin Edwards Inc
Missouri
$1.08M
EP
416
Edgestream Partners
New Jersey
$1.06M
IFWM
417
Institute for Wealth Management
Colorado
$1.05M
RAM
418
Redmond Asset Management
Virginia
$1.03M
FDCDDQ
419
Federation des caisses Desjardins du Quebec
Quebec, Canada
$1M
GC
420
Guidance Capital
Kentucky
$996K
IC
421
IEQ Capital
California
$980K
STA
422
Summit Trail Advisors
New York
$972K
KAS
423
Kestra Advisory Services
Texas
$965K
NDSIB
424
North Dakota State Investment Board
North Dakota
$963K
CPCPP
425
Canada Post Corporation Pension Plan
Canada
$953K