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CoStar Group

889 hedge funds and large institutions have $34.8B invested in CoStar Group in 2025 Q3 according to their latest regulatory filings, with 105 funds opening new positions, 355 increasing their positions, 310 reducing their positions, and 63 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

2% more capital invested

Capital invested by funds: $34.2B → $34.8B (+$682M)

3.13% less ownership

Funds ownership: 100.67%97.54% (-3.1%)

4% less funds holding in top 10

Funds holding in top 10: 2625 (-1)

Holders
889
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
25
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$199M
Puts
$81.5M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
NMIMC
451
Northwestern Mutual Investment Management Company
Wisconsin
$1.14M
AWAU
452
Alliance Wealth Advisors (Utah)
Utah
$1.14M
RCG
453
Regatta Capital Group
California
$1.13M
BBVA
454
Banco Bilbao Vizcaya Argentaria
Spain
$1.13M
CPIG
455
Chicago Partners Investment Group
Illinois
$1.13M
VA
456
Vident Advisory
Georgia
$1.12M
VAS
457
Vestmark Advisory Solutions
Massachusetts
$1.12M
MCM
458
Mattern Capital Management
Colorado
$1.11M
MWM
459
Maridea Wealth Management
New York
$1.1M
CT
460
Chicago Trust
Illinois
$1.1M
Assenagon Asset Management
461
Assenagon Asset Management
Luxembourg
$1.1M
BF
462
BOK Financial
Oklahoma
$1.09M
STA
463
Summit Trail Advisors
New York
$1.09M
DS
464
DRW Securities
Illinois
$1.08M
GC
465
Guidance Capital
Kentucky
$1.08M
BB
466
Bell Bank
North Dakota
$1.08M
BCV
467
Banque Cantonale Vaudoise
Switzerland
$1.07M
GS
468
GTS Securities
New York
$1.06M
PM
469
Phraction Management
Connecticut
$1.06M
CFO
470
Callan Family Office
Pennsylvania
$1.06M
HCM
471
Howard Capital Management
Georgia
$1.05M
LI
472
Louisbourg Investments
New Brunswick, Canada
$1.05M
EOJOAM
473
E. Ohman J:or Asset Management
Sweden
$1.04M
NW
474
NewEdge Wealth
Pennsylvania
$1.02M
CPCPP
475
Canada Post Corporation Pension Plan
Canada
$1M