COST insider trades & Congress trades
Costco Wholesale Corp /new: public insider filings and Congress disclosures, in one place.
Bourse has recorded 3 open-market insider transactions in Costco Wholesale Corp /new (COST) (0 purchases with code P and 3 sales with code S), the most recent on October 13, 2026.
In the last 90 days: 0 purchases by 0 insiders ($0) and 3 sales by 3 ($3.80M).
Members of Congress have disclosed 31 trades in COST (14 purchases, 17 sales), the latest transaction dated October 13, 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 | – |
| Sep 29, 2026 | Adamo Claudine | Executive Vice President | Sell | 2,200 | $915.93 | $2.02M | +0.1% |
| Sep 29, 2026 | Frates Caton | Sr. Executive Vice President | Sell | 801 | $915.93 | $733K | +0.1% |
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 |
|---|---|---|---|---|---|---|
| Oct 13, 2026 | Pete Sessions | house | Sell | $100,001 - $250,000 | Oct 27, 2026 | Source |
| Oct 2, 2026 | Pete Sessions | house | Sell | $250,001 - $500,000 | Oct 27, 2026 | Source |
| 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 | – |
| Nov 24, 2020 | Pat Roberts | Senate | Buy | $15,001 - $50,000 | – | Source |
| Nov 4, 2020 | Pat Roberts | Senate | Sell | $15,001 - $50,000 | – | Source |
| Aug 21, 2020 | Jerry Moran, | Senate | Sell | $1,001 - $15,000 | – | Source |
| Jul 13, 2020 | Ron L Wyden | Senate | Buy | $15,001 - $50,000 | – | Source |
| Jun 24, 2020 | Ron L Wyden | Senate | Buy | $15,001 - $50,000 | – | Source |
| Apr 14, 2020 | David A Perdue , Jr | Senate | Sell | $50,001 - $100,000 | – | Source |
| Apr 14, 2020 | David A Perdue , Jr | Senate | Sell | $15,001 - $50,000 | – | Source |
| Apr 7, 2020 | Kelly Loeffler | Senate | Sell | $100,001 - $250,000 | – | Source |
| Sep 25, 2019 | Jerry Moran, | Senate | Sell | $1,001 - $15,000 | – | Source |
| Feb 28, 2019 | John F Reed | Senate | Sell | $1,001 - $15,000 | – | Source |
| Feb 4, 2019 | John F Reed | Senate | Sell | $1,001 - $15,000 | – | Source |
| Dec 19, 2018 | Jerry Moran, | Senate | Buy | $1,001 - $15,000 | – | Source |
| Dec 6, 2018 | Jerry Moran, | Senate | Buy | $1,001 - $15,000 | – | Source |
| Mar 9, 2018 | John F Reed | Senate | Sell | $1,001 - $15,000 | – | Source |
| Feb 5, 2018 | Pat Roberts | Senate | Sell | $15,001 - $50,000 | – | Source |
| Jan 17, 2018 | Sheldon Whitehouse | Senate | Sell | $15,001 - $50,000 | – | Source |
| Oct 30, 2017 | David A Perdue , Jr | Senate | Buy | $1,001 - $15,000 | – | Source |
| Jun 16, 2017 | David A Perdue , Jr | Senate | Buy | $15,001 - $50,000 | – | Source |
| Mar 22, 2017 | David A Perdue , Jr | Senate | Buy | $1,001 - $15,000 | – | Source |
| Nov 14, 2016 | Pat Roberts | Senate | Buy | $15,001 - $50,000 | – | Source |
| Jul 8, 2016 | Pat Roberts | Senate | Sell | $15,001 - $50,000 | – | Source |
| May 5, 2016 | David A Perdue , Jr | Senate | Buy | $1,001 - $15,000 | – | Source |
| Apr 24, 2015 | Pat Roberts | Senate | Buy | $1,001 - $15,000 | – | Source |
| Mar 6, 2015 | Pat Roberts | Senate | Buy | $1,001 - $15,000 | – | Source |
Showing the 30 most recent of 31 trades.
Data as of November 12, 2026. Public filings only. A purchase or sale by a politician or an insider does not by itself imply any wrongdoing.
See all the latest insider trades. 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
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