Susan L Decker insider trades: Costco Wholesale Corp /New (COST) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Susan reports to the SEC
and 2 more companies
Open-market buys and sales
36 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jan 16, 2026 | COST | ↓ Sell | 458 | $955.00 | $437K | Direct | Jan 20, 2026 (4d) |
| Jun 18, 2025 | COST | ↓ Sell | 547 | $980.00 | $536K | Direct | Jun 20, 2025 (2d) |
| Aug 15, 2024 | COST | ↓ Sell | 620 | $876.50 | $543K | Direct | Aug 15, 2024 (0d) |
| Feb 9, 2024 | COST | ↓ Sell | 1,442 | $723.48 | $1.0M | Direct | Feb 12, 2024 (3d) |
| Jun 28, 2023 | COST | ↓ Sell | 1,565 | $533.00 | $834K | Direct | Jun 29, 2023 (1d) |
| Jun 7, 2023 | COST | ↓ Sell | 3,971 | $514.14 | $2.0M | Direct | Jun 9, 2023 (2d) |
| Dec 12, 2022 | COST | ↓ Sell | 952 | $483.00 | $460K | Direct | Dec 13, 2022 (1d) |
| Jan 27, 2021 | COST | ↓ Sell | 694 | $363.35 | $252K | Direct | Jan 29, 2021 (2d) |
| Jan 13, 2021 | COST | ↓ Sell | 1,199 | $366.48 | $439K | Direct | Jan 13, 2021 (0d) |
| Dec 30, 2020 | COST | ↓ Sell | 861 | $375.75 | $324K | Direct | Dec 30, 2020 (0d) |
| Dec 21, 2020 | COST | ↓ Sell | 1,000 | $362.59 | $363K | Direct | Dec 22, 2020 (1d) |
| Sep 28, 2020 | COST | ↓ Sell | 2,500 | $347.90 | $870K | Direct | Sep 29, 2020 (1d) |
| Aug 14, 2020 | COST | ↓ Sell | 2,500 | $336.92 | $842K | Direct | Aug 17, 2020 (3d) |
| Jul 13, 2020 | COST | ↓ Sell | 2,000 | $326.60 | $653K | Direct | Jul 14, 2020 (1d) |
| Jul 2, 2020 | COST | ↓ Sell | 685 | $308.50 | $211K | Direct | Jul 2, 2020 (0d) |
| Jul 1, 2020 | COST | ↓ Sell | 1,155 | $302.57 | $349K | Direct | Jul 1, 2020 (0d) |
| Jun 5, 2020 | COST | ↓ Sell | 1,995 | $312.00 | $622K | Direct | Jun 5, 2020 (0d) |
| Apr 20, 2020 | COST | ↓ Sell | 1,000 | $314.83 | $315K | Direct | Apr 21, 2020 (1d) |
| Mar 20, 2020 | COST | ↓ Sell | 1,000 | $297.00 | $297K | Direct | Mar 20, 2020 (0d) |
| Jan 14, 2020 | COST | ↓ Sell | 3,850 | $300.41 | $1.2M | Direct | Jan 15, 2020 (1d) |
| Nov 15, 2019 | COST | ↓ Sell | 1,703 | $303.01 | $516K | Direct | Nov 18, 2019 (3d) |
| Oct 18, 2019 | COST | ↓ Sell | 2,236 | $302.80 | $677K | Direct | Oct 18, 2019 (0d) |
| Oct 11, 2019 | COST | ↓ Sell | 333 | $297.50 | $99K | Direct | Oct 15, 2019 (4d) |
| Jul 3, 2019 | COST | ↓ Sell | 1,646 | $268.25 | $442K | Direct | Jul 5, 2019 (2d) |
| Jun 7, 2019 | COST | ↓ Sell | 2,790 | $254.62 | $710K | Direct | Jun 10, 2019 (3d) |
| Mar 26, 2019 | COST | ↓ Sell | 2,350 | $240.00 | $564K | Direct | Mar 28, 2019 (2d) |
| Mar 12, 2019 | COST | ↓ Sell | 2,049 | $232.00 | $475K | Direct | Mar 13, 2019 (1d) |
| Jan 4, 2019 | COST | ↓ Sell | 1,611 | $206.15 | $332K | Direct | Jan 4, 2019 (0d) |
| Jan 2, 2019 | COST | ↓ Sell | 739 | $205.00 | $151K | Direct | Jan 3, 2019 (1d) |
| Aug 13, 2007 | YHOO | ↑ Buy | 5,242 | $24.56 | $129K | Direct | Aug 15, 2007 (2d) |
| Aug 8, 2007 | YHOO | ↑ Buy | 47,000 | $23.60 | $1.1M | Direct | Aug 9, 2007 (1d) |
| Nov 17, 2005 | YHOO | ↓ Sell | 194,999 | $39.94 | $7.8M | Direct | Nov 18, 2005 (1d) |
| Nov 10, 2005 | YHOO | ↓ Sell | 104,167 | $38.52 | $4.0M | Direct | Nov 14, 2005 (4d) |
| Nov 2, 2005 | YHOO | ↓ Sell | 104,167 | $38.01 | $4.0M | Direct | Nov 4, 2005 (2d) |
| May 26, 2005 | YHOO | ↓ Sell | 300,000 | $37.07 | $11.1M | Direct | May 31, 2005 (5d) |
| May 23, 2005 | YHOO | ↓ Sell | 300,000 | $37.00 | $11.1M | Direct | May 25, 2005 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other COST insiders
Open-market trades in the last 12 months
About Susan L Decker's insider trades
Susan L Decker is a director at Costco Wholesale Corp /New (COST). Since May 23, 2005, Susan has reported 2 open-market purchases worth $1.2M and 34 sales worth $54.5M on SEC Form 4. In the last 12 months: 1 sale ($437K).
Their filings also include grants and awards (59 filings), option exercises (34 filings), gifts (3 filings), shares returned to the company (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every COST insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.