COST insider trades & Congress trades
Costco Wholesale Corp /new: public insider filings and Congress disclosures, in one place.
Bourse has recorded 1 open-market insider transactions in Costco Wholesale Corp /new (COST) (0 purchases with code P and 1 sales with code S), the most recent on October 13, 2026.
In the last 90 days: 0 purchases by 0 insiders ($0) and 1 sale by 1 ($1.05M).
Members of Congress have disclosed 4 trades in COST (2 purchases, 2 sales), the latest transaction dated September 18, 2026. Congress filings can arrive up to 45 days after the trade.
Insider transactions
SEC Form 4, open-market purchases (P) and sales (S) only. Awards, option exercises and tax withholding are excluded. “After” shows the stock’s return over the month following the trade, where available.
| Date | Insider | Role | Type | Shares | Price | Value | After 1M |
|---|---|---|---|---|---|---|---|
| Oct 13, 2026 | Wilcox William Richard | Executive Vice President | Sell | 1,100 | $958.21 | $1.05M | – |
Congress trades
Disclosures under the STOCK Act. Amounts are reported as ranges; some trades are made by a spouse or dependent child.
| Traded | Member | Party | Type | Amount | Disclosed | Filing |
|---|---|---|---|---|---|---|
| Sep 18, 2026 | Richard W. Allen | house | Sell | $1,001 - $15,000 | Oct 14, 2026 | Source |
| Sep 11, 2026 | Rohit Khanna | house | Buy | $1,001 - $15,000 | Oct 7, 2026 | Source |
| Aug 24, 2026 | Rohit Khanna | house | Buy | $1,001 - $15,000 | Sep 4, 2026 | – |
| Jul 30, 2026 | Richard Dean Dr McCormick | house | Sell | $1,001 - $15,000 | Aug 14, 2026 | – |
Data as of October 22, 2026. Public filings only. A purchase or sale by a politician or an insider does not by itself imply any wrongdoing.
New to these filings? Read how to read a Form 4, how Congress trades are disclosed and what insider cluster buying means. Sources and limits are on the Methodology page.
See these filings as they land
Bourse collects Congress trades, SEC Form 4 insider filings and 13F fund holdings in one live feed, and flags insider buying clusters automatically. Free to start.
Bourse provides financial data and editorial information, parts of which are generated by AI. This page is for general education only. It is not personalised investment advice or a recommendation to buy or sell any financial instrument. Make your own decisions.