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CoStar Group

791 hedge funds and large institutions have $16.4B invested in CoStar Group in 2026 Q1 according to their latest regulatory filings, with 125 funds opening new positions, 307 increasing their positions, 276 reducing their positions, and 164 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: 125 | Existing positions closed: 164

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
791
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
Lido Advisors
426
Lido Advisors
California
$577K
MNBTD
427
Moody National Bank Trust Division
Texas
$576K
BCV
428
Banque Cantonale Vaudoise
Switzerland
$566K
VAS
429
Vestmark Advisory Solutions
Massachusetts
$562K
Axa
430
Axa
France
$561K
Commonwealth Equity Services
431
Commonwealth Equity Services
Massachusetts
$560K
SWM
432
Salvus Wealth Management
New Jersey
$559K
EOJOAM
433
E. Ohman J:or Asset Management
Sweden
$557K
MYLI
434
Meiji Yasuda Life Insurance
Japan
$553K
PPWP
435
Premier Path Wealth Partners
New Jersey
$550K
BBVA
436
Banco Bilbao Vizcaya Argentaria
Spain
$549K
LFG
437
Larson Financial Group
Missouri
$548K
NMIMC
438
Northwestern Mutual Investment Management Company
Wisconsin
$547K
BPC
439
Banque Pictet & Cie
Switzerland
$547K
AssetMark Inc
440
AssetMark Inc
California
$539K
DCM
441
Davis Capital Management
Florida
$538K
CIAM
442
Caitong International Asset Management
Hong Kong
$536K
MFG
443
Merit Financial Group
Georgia
$520K
RCG
444
Regatta Capital Group
California
$517K
WC
445
Westerkirk Capital
$508K
AIM
446
Aigen Investment Management
New York
$502K
NDSIB
447
North Dakota State Investment Board
North Dakota
$487K
MGP
448
Metis Global Partners
California
$484K
PCM
449
Potomac Capital Management
New York
$484K
CUAMC
450
China Universal Asset Management Company
China
$476K