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CoStar Group

786 hedge funds and large institutions have $16.4B invested in CoStar Group in 2026 Q1 according to their latest regulatory filings, with 126 funds opening new positions, 306 increasing their positions, 272 reducing their positions, and 166 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less ownership

Funds ownership:

less funds holding

Funds holding:

24% less first-time investments, than exits

New positions opened: 126 | Existing positions closed: 166

41% less capital invested

Capital invested by funds: $27.8B → $16.4B (-$11.3B)

59% less funds holding in top 10

Funds holding in top 10: 177 (-10)

Holders
786
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$142M
Puts
$39.3M
Net Calls
Net Calls Change

Top Sellers

1 -$302M
2 -$233M
3 -$216M
4
TP
Third Point
New York
-$213M
5
BAMCO Inc
BAMCO Inc
New York
-$166M
Name Holding Trade Value Shares
Change
Change in
Stake
BCV
426
Banque Cantonale Vaudoise
Switzerland
$566K
VAS
427
Vestmark Advisory Solutions
Massachusetts
$562K
Axa
428
Axa
France
$561K
Commonwealth Equity Services
429
Commonwealth Equity Services
Massachusetts
$560K
SWM
430
Salvus Wealth Management
New Jersey
$559K
EOJOAM
431
E. Ohman J:or Asset Management
Sweden
$557K
MYLI
432
Meiji Yasuda Life Insurance
Japan
$553K
PPWP
433
Premier Path Wealth Partners
New Jersey
$550K
BBVA
434
Banco Bilbao Vizcaya Argentaria
Spain
$549K
LFG
435
Larson Financial Group
Missouri
$548K
NMIMC
436
Northwestern Mutual Investment Management Company
Wisconsin
$547K
BPC
437
Banque Pictet & Cie
Switzerland
$547K
AssetMark Inc
438
AssetMark Inc
California
$539K
DCM
439
Davis Capital Management
Florida
$538K
CIAM
440
Caitong International Asset Management
Hong Kong
$536K
MFG
441
Merit Financial Group
Georgia
$520K
RCG
442
Regatta Capital Group
California
$517K
WC
443
Westerkirk Capital
$508K
AIM
444
Aigen Investment Management
New York
$502K
NDSIB
445
North Dakota State Investment Board
North Dakota
$487K
MGP
446
Metis Global Partners
California
$484K
PCM
447
Potomac Capital Management
New York
$484K
CUAMC
448
China Universal Asset Management Company
China
$476K
AF
449
Avanza Fonder
Sweden
$475K
MSA
450
MUFG Securities Americas
New York
$473K