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Costco Wholesale Corp Planned Sales
Before an insider at Costco Wholesale Corp can sell restricted stock they have to file notice of it. This is that notice — the leading edge of the insider trading feed, filed days before the sale it describes.
COST insider trades →Notices on file
2
Insiders
2
Shares noticed
3K
permission to sell, not sales
Estimated value
$2.7M
as estimated on filing
Largest notices first
Value is the filer's own estimate of what the sale would raise, at the time they filed.
| Seller | Est. value |
|---|---|
| Claudine AdamoOfficer2026-09-292.2K sh<0.01% | $2M |
| Caton FratesOfficer2026-09-29801 sh<0.01% | $733.3K |
Source: SEC Form 144 notices, via EDGAR. A notice is permission to sell, not a completed sale — it is often used only in part, or not at all, so none of this is volume and none of it should be added to the insider trading feed. Value is the filer's estimate on the day they filed.
More on COST
Company overviewEverything on COST in one place, with the price.SEC filingsWhat COST's 8-Ks say happened: results, departures, auditor changes.Insider tradingWhat COST's own officers and directors buy and sell.Who owns itEvery manager reporting a position in COST.Funds holding itWhich funds and ETFs hold COST, and how big a bet.Workplace safetyWhat OSHA found at COST's sites.AircraftThe jets on COST's registration.