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Costco

3,884 hedge funds and large institutions have $274B invested in Costco in 2025 Q3 according to their latest regulatory filings, with 168 funds opening new positions, 1,626 increasing their positions, 1,577 reducing their positions, and 170 closing their positions.

New
Increased
Maintained
Reduced
Closed

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less first-time investments, than exits

New positions opened: | Existing positions closed:

less call options, than puts

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

less ownership

Funds ownership:

2% less funds holding

Funds holding: 3,9703,884 (-86)

9% less capital invested

Capital invested by funds: $302B → $274B (-$28B)

27% less funds holding in top 10

Funds holding in top 10: 321233 (-88)

Holders
3,884
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
233
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$9.17B
Puts
$10.1B
Net Calls
Net Calls Change

Top Sellers

1 -$1.35B
2 -$883M
3 -$742M
4
Assenagon Asset Management
Assenagon Asset Management
Luxembourg
-$702M
5
Axa
Axa
France
-$363M
Name Holding Trade Value Shares
Change
Change in
Stake
TIM
3901
Thornburg Investment Management
New Mexico
TS
3902
Triglav Skladi
Slovenia
CCIA
3903
Campbell & Co Investment Adviser
Maryland
DWA
3904
Dorsey Wright & Associates
California
DL
3905
DOHJ LLC
Washington
PA
3906
Prossimo Advisors
California
SM
3907
Sciencast Management
New Jersey
Alyeska Investment Group
3908
Alyeska Investment Group
Illinois
PMAM
3909
Picton Mahoney Asset Management
Ontario, Canada
MPA
3910
Marvin & Palmer Associates
Delaware
OTL
3911
Oak Thistle LLC
New York
SPS
3912
Susquehanna Portfolio Strategies
Pennsylvania
CC
3913
Centiva Capital
New York
IC
3914
Iconiq Capital
California
PA
3915
Paragon Advisors
Texas
MS
3916
Maven Securities
Jersey
FIM
3917
Freedom Investment Management
Connecticut
ES
3918
Element Squared
Minnesota
GCM
3919
Genus Capital Management
British Columbia, Canada
CIM
3920
Caldwell Investment Management
Ontario, Canada
WLG
3921
Williamson Legacy Group
Indiana
MC
3922
Martin & Co
Tennessee
VSQM
3923
V-Square Quantitative Management
Illinois
QIM
3924
Quantitative Investment Management
Virginia
HFRG
3925
Houlihan Financial Resource Group
Virginia