Costco Wholesale Corp
COST- Exchange
- Nasdaq
- Industry
- Retail-Variety Stores
- SEC CIK
- 0000909832
In the last 90 days, Costco Wholesale Corp insiders filed 0 open-market purchases and 3 sales; 4,280 institutions reported holding it in 13F filings for Q2 2026, worth $301.9B in total; 4 superinvestors hold it, including Markel Group and Gardner Russo & Quinn.
Key figures
- Market capClose on Nov 10, 2026
- $472.4B
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $3.80M in total
- 3
- 13F holdersQ2 2026, +48 vs. previous quarter
- 4,280
- 13F valueReported value at the end of Q2 2026
- $301.9B
- Superinvestors holdingAt the end of Q2 2026
- 4
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2026
- $303.2B
- +10.1% year over year
- Net income, FY2026
- $9.23B
- +13.9% year over year
- Free cash flow, FY2026
- $9.38B
- +19.7% year over year
- Revenue, Q4 FY2026
- $95.7B
- +11.1% year over year
Revenue flow, FY2026
Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.
Short interest
See short dataFrom FINRA, settlement date Oct 30, 2026.
- Short interest
- 7.89M
- Shares sold short
- Change
- +290.8K
- +3.8% vs. previous
- Days to cover
- 3.55
- At average daily volume
Superinvestors holding COST, Q2 2026
Go to the superinvestors tab4 superinvestors report holding Costco Wholesale Corp on Form 13F. Percentages are the stock's share of each portfolio.
Gardner Russo & Quinn
Tom Russo
<0.1%
Costco Wholesale Corp's share of the portfolio
- Shares
- 3,399
- Value
- $3.18M
| Superinvestor | Weight | Value |
|---|---|---|
| Semper Augustus | 0.4% | $3.14M |
| Harris Associates (Oakmark) | <0.1% | $334.9K |
Latest insider trades
See all insider tradesOpen-market purchases and sales by Costco Wholesale Corp insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Oct 14, 2026 (view filing)7:00 PM ET | Oct 13 | 1 day | Wilcox William RichardExecutive Vice President | SSale | −1.10K | $958.21 | −$1.05M | −26.2%3.09K after | |
| Sep 30, 2026 (view filing)5:52 PM ET | Sep 29 | 1 day | Frates CatonSr. Executive Vice President | SSale | −800.64 | $915.93 | −$733.3K | −9.2%7.91K after | |
| Sep 30, 2026 (view filing)5:48 PM ET | Sep 29 | 1 day | Adamo ClaudineExecutive Vice President | SSale | −2.20K | $915.93 | −$2.02M | −23.6%7.13K after | |
| Jun 25, 2026 (view filing) | Jun 23 | 2 days | Denman Kenneth DDirector | SSale | −885 | $957.45 | −$847.3K | −15.6%4.78K after | |
| Apr 1, 2026 (view filing) | Apr 1 | Same day | Frates CatonExecutive Vice President | SSale | −700 | $993.00 | −$695.1K | −10.7%5.82K after | |
| Mar 11, 2026 (view filing) | Mar 9 | 2 days | Adamo ClaudineExecutive Vice President | SSale | −730 | $1,003.02 | −$732.2K | −10.7%6.12K after | |
| Jan 23, 2026 (view filing) | Jan 21 | 2 days | Jones Teresa A.Executive Vice President | SSale | −850 | $986.26 | −$838.3K | −16.7%4.23K after | |
| Jan 20, 2026 (view filing) | Jan 16 | 4 days | Decker Susan LDirector | SSale | −458 | $955.00 | −$437.4K | −5.1%8.53K after | |
| Jan 15, 2026 (view filing) | Jan 14 | 1 day | Klauer James CExecutive Vice President | SSale | −1.50K | $939.00 | −$1.41M | −3.2%44.8K after | |
| Jan 12, 2026 (view filing) | Jan 9 | 3 days | Miller Russell DSr. Executive Vice President | SSale | −1.50K | $916.32 | −$1.37M | −15.4%8.24K after |
Top 10 13F holders, Q2 2026
See all 4,280 holdersThe largest institutional positions in Costco Wholesale Corp at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 34,202,834 | $32.0B | 0.48% | −744,206−2.1% | Reduced |
| Vanguard Capital Management LLC | 28,976,605 | $27.1B | 0.58% | +129,157+0.4% | Added |
| State Street Corp | 18,384,951 | $17.2B | 0.51% | +232,719+1.3% | Added |
| Invesco Ltd. | 13,989,137 | $13.1B | 1.04% | +359,889+2.6% | Added |
| Geode Capital Management, LLC | 10,627,472 | $9.90B | 0.53% | −31,752−0.3% | Reduced |
| Vanguard Portfolio Management LLC | 10,402,555 | $9.73B | 0.44% | −303,080−2.8% | Reduced |
| Morgan Stanley | 10,220,437 | $9.56B | 0.51% | +321,726+3.3% | Added |
| Bank of America Corp | 7,249,774 | $6.78B | 0.44% | −265,257−3.5% | Reduced |
| Norges Bank | 6,474,767 | $6.06B | 0.60% | +6,474,767 | New |
| FMR LLC | 6,163,541 | $5.77B | 0.25% | −555,048−8.3% | Reduced |
Holders of 5% or more of COST
See all 1 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of Costco Wholesale Corp.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Vanguard Capital Management LLC | 13G | 7.49%33.3M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
Politician trades
All politician trades in COST45 members of Congress reported 137 trades in Costco Wholesale Corp since 2020. Newest filings:
| Filed | Politician | Type | Amount |
|---|---|---|---|
| Oct 27, 2026 |  Pete Sessions House · TX | Sell | $250K-$500K |
| Oct 27, 2026 | Pete Sessions House · TX | Sell | $100K-$250K |
| Oct 14, 2026 |  Rick W. Allen House · GA | Sell | $1K-$15K |
| Aug 14, 2026 |  Richard McCormick House · GA | Sell | $1K-$15K |
| Jul 21, 2026 |  Alan Armstrong Senate · OK | Buy | $1K-$15K |
House · TX · Oct 27, 2026
Sell$250K-$500K
House · TX · Oct 27, 2026
Sell$100K-$250K
House · GA · Oct 14, 2026
Sell$1K-$15K
House · GA · Aug 14, 2026
Sell$1K-$15K
Senate · OK · Jul 21, 2026
Buy$1K-$15K