Data from public SEC 13F & STOCK Act filings, delayed up to ~45 days, partial holdings only — for research, not investment advice.
COST
COSTCO WHOLESALE CORPData as of 2026 Q1 (03-31) · 13F snapshot
Summary
COSTCO WHOLESALE CORP (COST) is held by 10 tracked hedge-fund managers, a combined reported value of ~$5.93B; the largest are Ken Griffin, Warren Buffett, Ken Griffin. This quarter: 1 added, 5 trimmed. 20 members of Congress have disclosed STOCK Act trades. Data as of 2026 Q1, from public SEC 13F filings, delayed up to ~45 days.
Attention · HighThis quarter · Cooling
Gurus holding10
Congress trades20
Price$982.35vs quarter-end-1.41%
Sectors1
This quarter's moves
Top holderKen GriffinNew0
Added1
Trimmed / sold5
Value $1.41B— of portfolio1,413,0002026 Q1
Warren BuffettHold
Value $1.31B0.6% of portfolio4,333,3632020 Q2
Value $1.00B— of portfolio1,007,3002026 Q1
Bill GatesHold
Value $613.57M3.5% of portfolio6,128,0002012 Q3
Value $399.77M— of portfolio401,2002026 Q1
Value $144.08M— of portfolio144,6002026 Q1
Value $77.32M— of portfolio77,6002026 Q1
Value $50.52M— of portfolio50,7002026 Q1
Value $22.16M— of portfolio25,0002024 Q3
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Ken GriffinCALL | $1.41B | — | — |
| Warren Buffett | $1.31B | 0.6% | Hold |
| Ken GriffinPUT | $1.00B | — | — |
| Bill Gates | $613.57M | 3.5% | Hold |
| Izzy EnglanderPUT | $399.77M | — | — |
| Izzy EnglanderCALL | $144.08M | — | — |
| Steven CohenCALL | $77.32M | — | — |
| Steven CohenPUT | $50.52M | — | — |
| George SorosPUT | $22.16M | — | — |