Costco
COST
948.13
+5.88
+0.62%
Costco
US · COST
#36 by market cap
Listed 1970
948.13
+5.88
+0.62%
Live - 5344 symbols - heartbeat 43s ago
· 2026-10-08 16:00
Pre-market
952.40
+1.08%
After-hours
947.92
-0.02%
Overnight
942.06
-0.02%
- Market cap
- 420.14B
- P/E (TTM)i
- 45.67
- P/Bi
- 11.73
- EPSi
- 20.76
- Div yieldi
- 0.58%
- 52W posi
- 42%
Reader sentiment
Are you bullish or bearish on COST?
Anonymous reader poll. Unscientific, not investment advice.
✦ Quant Ownership Signal how this is computed
Distributing
- The number of reporting institutions decreased by 16 in the most recent period (2026/Q3).
- Total institutional ownership (as a % of shares) was little changed.
Institutional ownership
- Held by institutions
- 73.94% -0.04pp
- Institutions
- 4,727 -16
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
AlignedInstitutions trimmed shares last reporting period, and the stock has seen net outflows in main-fund flow over the last 20 trading sessions - the two line up.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Mutual Fund58.92%
Public Company5.04%
Private Company2.82%
Government Pension Fund2.20%
Hedge Fund2.07%
Sovereign Wealth Fund1.53%
Family Office/Trust0.64%
Insurance Company0.32%
Corporate Pension Plan0.21%
Other26.25%
Top holders as of 2026-06-30
BlackRock
7.72% · 34.20M sh
Vanguard Capital Management, LLC
7.10% · 31.49M sh
State Street Global Advisors
4.15% · 18.38M sh
Invesco Capital Management LLC
3.04% · 13.48M sh
Geode Capital Management, LLC
2.40% · 10.63M sh
Other
75.60%
Vanguard Portfolio Management, LLC
2.35% · 10.40M sh
Norges Bank Investment Management
1.46% · 6.47M sh
Morgan Stanley
1.46% · 6.45M sh
UBS Asset Management
1.30% · 5.74M sh
Capital Research
1.23% · 5.46M sh
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 14 buys · 32 sells
| Name | Role | Stake |
|---|---|---|
| W. Jelinek | Chief Executive Officer | 0.08% |
| Patrick Callans | Executive Vice President of Administration | 0.01% |
| Hamilton James | Independent Chairperson | 0.01% |
| Ron Vachris | President | 0.01% |
| James Klauer | Executive VP & COO of Northern Division | 0.01% |
| Richard Galanti | Chief Financial Officer | 0.01% |
| John Sullivan | General Counsel | 0.01% |
| John Stanton | Independent Director | 0.01% |
| Pierre Riel | Executive VP & COO of International Division | 0.00% |
| Mary Wilderotter | Independent Director | 0.00% |
| Yoram Rubanenko | Executive VP & COO of Eastern Division | 0.00% |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-09-28 | Caton Frates | Executive VP & COO of Southwest Division | Open Market Disposition | -800 | $915.93 |
| 2026-09-28 | Claudine Adamo | Executive VP & COO of Merchandising | Open Market Disposition | -2,200 | $915.93 |
| 2026-09-09 | Pierre Riel | Executive VP & COO of International Division | Sale to Issuer | -1,561 | $902.38 |
| 2026-09-09 | Pierre Riel | Executive VP & COO of International Division | Other Acquisition | +4,552 | -- |
| 2026-09-09 | Yoram Rubanenko | Executive VP & COO of Eastern Division | Sale to Issuer | -1,695 | $902.38 |
| 2026-09-09 | Yoram Rubanenko | Executive VP & COO of Eastern Division | Other Acquisition | +4,129 | -- |
| 2026-09-09 | Caton Frates | Executive VP & COO of Southwest Division | Sale to Issuer | -1,654 | $902.38 |
| 2026-09-09 | Caton Frates | Executive VP & COO of Southwest Division | Other Acquisition | +4,552 | -- |
| 2026-09-09 | William Wilcox | Senior VP & GM of San Diego Region | Sale to Issuer | -1,934 | $902.38 |
| 2026-09-09 | William Wilcox | Senior VP & GM of San Diego Region | Other Acquisition | +4,129 | -- |
| 2026-09-09 | James Klauer | Executive VP & COO of Northern Division | Sale to Issuer | -936 | $902.38 |
| 2026-09-09 | James Klauer | Executive VP & COO of Northern Division | Other Acquisition | +4,129 | -- |
| 2026-09-09 | Claudine Adamo | Executive VP & COO of Merchandising | Sale to Issuer | -916 | $902.38 |
| 2026-09-09 | Claudine Adamo | Executive VP & COO of Merchandising | Other Acquisition | +4,129 | -- |
| 2026-09-09 | Teresa Jones | Senior Vice President of Depots & Traffic | Sale to Issuer | -1,458 | $902.38 |
| 2026-09-09 | Teresa Jones | Senior Vice President of Depots & Traffic | Other Acquisition | +4,129 | -- |
| 2026-08-30 | Adam Self | Senior VP & GM of Northeast Region | Initial Statement of Beneficial | 0 | -- |
| 2026-07-09 | Jeffrey Raikes | Independent Director | Other Disposition | -5,249 | -- |
| 2026-06-22 | Kenneth Denman | Independent Vice Chairperson | Open Market Disposition | -885 | $957.45 |
| 2026-06-11 | Patrick Callans | Executive Vice President of Administration | Intent to Sell (Form 144) | -1,001 | $971.88 |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-08 16:00:15 · For reference only, not investment advice and not tailored to your situation.