COST
Costco Wholesale Corporation · Consumer Defensive · Discount Stores
$920.65
+0.62% today · -0.23% 1W
Oct 2 close or latest
PreviewWhy it's moving
Moving with the market
- COST +0.62% on the last session vs SPY +0.74%: −0.1 pts of stock-specific move.
- Aftermath, insider unplanned sale (Oct 1): After its 12 unplanned insider sales in the past 5 years, COST typically gained 0.1% over the next day (median) and was higher 50% of the time; half the outcomes fell between -0.6% and +0.6%. An ordinary day: +0.1%. Among S&P 500 stocks after unplanned insider sales, that ranks #18 of 34.
- 12 analyst actions in the past 10 days (1 positive, 8 negative); latest: Deutsche Bank maintained Buy, lowered target $1,091 → $1,079.
- 2 insider or congressional trades in the past 30 days, including 2 insider sales not under a 10b5-1 plan.
- Market backdrop (Fri): Average Hourly Earnings m/m 0.1% vs 0.3% expected (cooler); Non-Farm Employment Change 29K vs 89K expected (weaker); S&P futures +0.41%, 10-year yield -5bp in the 30 minutes after.
Assembled from Wallsti's own signals.
Insiders · 1 month
−$2.7M
unplanned net · 0 buys · 2 sells · 2 insiders
sales: 2 unplanned, 0 under a 10b5-1 plan (100% unplanned)
Insiders · 3 months
−$2.7M
unplanned net · 0 buys · 2 sells · 2 insiders
sales: 2 unplanned, 0 under a 10b5-1 plan (100% unplanned)
Congress · 3 months
$0
1 buy · 1 sell · 2 members
Congress · 1 year
≈+$56.5K
7 buys · 3 sells · 7 members
Insiders
| Trade date | Insider | Role | Side | Type | Shares | Avg price | Value | Filed |
|---|---|---|---|---|---|---|---|---|
| Sep 29, 2026 | Claudine Adamo | President | Sell | unplanned | 2,200 | $915.93 | $2M | Sep 30 |
| Sep 29, 2026 | Caton Frates | President | Sell | unplanned | 800.638 | $915.93 | $733.3K | Sep 30 |
| Sep 10, 2026 | Claudine Adamo | President | Tax | tax withholding | 916.685 | $902.38 | $827.2K | Sep 14 |
| Sep 10, 2026 | Caton Frates | President | Tax | tax withholding | 1,654.363 | $902.38 | $1.5M | Sep 14 |
| Sep 10, 2026 | Teresa A. Jones | President | Tax | tax withholding | 1,458.535 | $902.38 | $1.3M | Sep 14 |
| Sep 10, 2026 | James C Klauer | President | Tax | tax withholding | 936.115 | $902.38 | $844.7K | Sep 14 |
| Sep 10, 2026 | Pierre Riel | President | Tax | tax withholding | 1,561.66 | $902.38 | $1.4M | Sep 14 |
| Sep 10, 2026 | Yoram Rubanenko | President | Tax | tax withholding | 1,695.952 | $902.38 | $1.5M | Sep 14 |
| Sep 10, 2026 | William Richard Wilcox | President | Tax | tax withholding | 1,934.609 | $902.38 | $1.7M | Sep 14 |
| Jun 23, 2026 | Kenneth D Denman | Director | Sell | unplanned | 885 | $957.45 | $847.3K | Jun 25 |
| Apr 1, 2026 | Caton Frates | President | Sell | unplanned | 700 | $993.00 | $695.1K | Apr 1 |
| Mar 11, 2026 | Gary Millerchip | President | Tax | tax withholding | 1,154.017 | $992.23 | $1.1M | Mar 13 |
| Mar 9, 2026 | Claudine Adamo | President | Sell | unplanned | 730 | $1,003.02 | $732.2K | Mar 11 |
| Jan 21, 2026 | Teresa A. Jones | President | Sell | unplanned | 850 | $986.26 | $838.3K | Jan 23 |
| Jan 16, 2026 | Susan L Decker | Director | Sell | unplanned | 458 | $955.00 | $437.4K | Jan 20 |
| Jan 14, 2026 | James C Klauer | President | Sell | unplanned | 1,500 | $939.00 | $1.4M | Jan 15 |
| Jan 9, 2026 | Russell D Miller | President | Sell | unplanned | 1,500 | $916.32 | $1.4M | Jan 12 |
| Dec 30, 2025 | Javier Polit | President | Sell | unplanned | 2,607.305 | $866.28 | $2.3M | Dec 31 |
| Nov 7, 2025 | William Richard Wilcox | President | Sell | unplanned | 2,400 | $930.13 | $2.2M | Nov 12 |
| Oct 24, 2025 | Claudine Adamo | President | Sell | unplanned | 2,700 | $935.68 | $2.5M | Oct 24 |
| Oct 24, 2025 | Tiffany Marie Barbre | Insider | Sell | unplanned | 1,239.383 | $934.62 | $1.2M | Oct 24 |
| Oct 22, 2025 | Claudine Adamo | President | Tax | tax withholding | 704.6399999999999 | $944.68 | $665.7K | Oct 24 |
| Oct 22, 2025 | Patrick J Callans | President | Tax | tax withholding | 916.95 | $944.68 | $866.2K | Oct 24 |
| Oct 22, 2025 | Caton Frates | President | Tax | tax withholding | 2,768.6899999999996 | $944.68 | $2.6M | Oct 24 |
| Oct 22, 2025 | James C Klauer | President | Tax | tax withholding | 917.3499999999999 | $944.68 | $866.6K | Oct 24 |
| Oct 22, 2025 | Gary Millerchip | President | Tax | tax withholding | 813.37 | $944.68 | $768.4K | Oct 24 |
| Oct 22, 2025 | Javier Polit | President | Tax | tax withholding | 1,168.28 | $944.68 | $1.1M | Oct 24 |
| Oct 22, 2025 | John Christopher Sullivan | Executive VP | Tax | tax withholding | 2,513.54 | $944.68 | $2.4M | Oct 24 |
| Oct 22, 2025 | Roland Michael Vachris | CEO | Tax | tax withholding | 2,652.8 | $944.68 | $2.5M | Oct 24 |
| Oct 22, 2025 | Tiffany Marie Barbre | Insider | Tax | tax withholding | 542.32 | $944.68 | $512.3K | Oct 24 |
| Sep 29, 2025 | Caton Frates | President | Sell | unplanned | 1,540 | $910.02 | $1.4M | Sep 30 |
| Sep 29, 2025 | Russell D Miller | President | Sell | unplanned | 3,381 | $915.00 | $3.1M | Oct 1 |
| Sep 10, 2025 | Claudine Adamo | President | Tax | tax withholding | 949.666 | $956.29 | $908.2K | Sep 12 |
| Sep 10, 2025 | Patrick J Callans | President | Tax | tax withholding | 949.666 | $956.29 | $908.2K | Sep 12 |
| Sep 10, 2025 | Caton Frates | President | Tax | tax withholding | 1,271.078 | $956.29 | $1.2M | Sep 12 |
| Sep 10, 2025 | Teresa A. Jones | President | Tax | tax withholding | 1,503.321 | $956.29 | $1.4M | Sep 12 |
| Sep 10, 2025 | James C Klauer | President | Tax | tax withholding | 958.287 | $956.29 | $916.4K | Sep 12 |
| Sep 10, 2025 | Russell D Miller | President | Tax | tax withholding | 1,735.085 | $956.29 | $1.7M | Sep 12 |
| Sep 10, 2025 | Pierre Riel | President | Tax | tax withholding | 1,608.361 | $956.29 | $1.5M | Sep 12 |
| Sep 10, 2025 | Yoram Rubanenko | President | Tax | tax withholding | 1,745.913 | $956.29 | $1.7M | Sep 12 |
Officers, directors and 10% owners file SEC Form 4 within two business days. Unplanned: the insider chose to trade now, the trades worth attention; their dollars make the net above. 10b5-1 plan: scheduled in advance, kept for the record. Tax: shares withheld on vesting stock, not a market trade. Awards, option exercises and gifts are left out. Source: SEC EDGAR, collected daily for the stocks discussed on Reddit.
Congress
| Trade date | Member | Chamber | Side | Amount | Disclosed |
|---|---|---|---|---|---|
| Jul 30, 2026 | Richard Dean McCormick | House | Sell | $1K–$15K | Aug 14 |
| Jul 10, 2026 | Dan Newhouse | House | Buy | $1K–$15K | Jul 17 |
| Mar 27, 2026 | Alan Armstrong | Senate | Buy | $1K–$15K | Jul 21 |
| Jan 30, 2026 | Gilbert Cisneros | House | Buy | $1K–$15K | Feb 13 |
| Dec 29, 2025 | Markwayne Mullin | Senate | Buy | $15K–$50K | Jan 16 |
| Dec 24, 2025 | Gilbert Cisneros | House | Sell | $1K–$15K | Jan 12 |
| Nov 5, 2025 | Richard Dean McCormick | House | Buy | $1K–$15K | Dec 9 |
| Oct 17, 2025 | Gilbert Cisneros | House | Buy | $1K–$15K | Nov 18 |
| Oct 17, 2025 | Shelley M Capito | Senate | Sell | $1K–$15K | Nov 4 |
| Oct 9, 2025 | John Boozman | Senate | Buy | $1K–$15K | Nov 15 |
| Sep 23, 2025 | Valerie Hoyle | House | Sell | $1K–$15K | Oct 10 |
Members of Congress report trades within 45 days of the trade date, so these are never real-time. Amounts are disclosed as ranges; the net uses each range's midpoint (≈). Source: House and Senate periodic transaction reports via CongressInvests, refreshed daily. All recent insider and congressional trades