Roland Michael Vachris serves as Executive at COSTCO WHOLESALE CORP /NEW, where they oversee executive responsibilities. Since joining the company, Roland Michael Vachris has executed 46 insider transactions totaling $13.6M, demonstrating a bearish approach to their equity position. Their most recent transaction on Oct 22, 2025 involved selling 1,493.05 shares valued at $1.4M.
Roland Michael Vachris currently holds 53,417.81 shares of COSTCO WHOLESALE CORP /NEW (COST), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Roland Michael Vachris has been a net seller of COST stock. They have purchased $0 and sold $13.6M worth of shares.
Roland Michael Vachris's most recent insider trade was on Oct 22, 2025, when they sold 1,493.05 shares at $944.68 per share.
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| $944.68 |
| Discretionary |
| Oct 22, 2025 | COST | $0 | Award | 13,834 | $N/A | Discretionary |
| Sep 15, 2023 | COST | $3.1M | Payment | 5,490.84 | $556.36 | Discretionary |
| Sep 15, 2023 | COST | $0 | Award | 14,639 | $N/A | Discretionary |
| Mar 6, 2023 | COST | $2.0M | Sale | 4,100 | $476.29 | Discretionary |
| Sep 12, 2022 | COST | $0 | Award | 12,042 | $N/A | Discretionary |
| Sep 12, 2022 | COST | $2.4M | Payment | 4,461 | $539.52 | Discretionary |
| Jan 27, 2022 | COST | $1.6M | Sale | 3,318 | $492.45 | Discretionary |
| Sep 14, 2021 | COST | $0 | Award | 9,926 | $N/A | Discretionary |
| Sep 14, 2021 | COST | $1.6M | Payment | 3,579 | $458.41 | Discretionary |
| Jul 12, 2021 | COST | $1.6M | Sale | 4,000 | $409.40 | Discretionary |
| Mar 22, 2021 | COST | $1.4M | Sale | 4,300 | $334.30 | Discretionary |
| Sep 14, 2020 | COST | $1.4M | Payment | 4,222 | $342.92 | Discretionary |
| Sep 14, 2020 | COST | $0 | Award | 11,840 | $N/A | Discretionary |
| Jun 19, 2020 | COST | $1.2M | Sale | 4,000 | $300.95 | Discretionary |
| Dec 17, 2019 | COST | $1.8M | Sale | 6,000 | $295.22 | Discretionary |
| Sep 18, 2019 | COST | $0 | Award | 13,510 | $N/A | Discretionary |
| Sep 18, 2019 | COST | $1.4M | Payment | 4,804 | $292.43 | Discretionary |
| Jun 24, 2019 | COST | $988.8K | Sale | 3,700 | $267.25 | Discretionary |
| Oct 22, 2018 | COST | $174.5K | Payment | 762 | $229.06 | Discretionary |
| Oct 22, 2018 | COST | $485.4K | Payment | 2,119 | $229.06 | Discretionary |
| Oct 22, 2018 | COST | $137.2K | Payment | 599 | $229.06 | Discretionary |
| Oct 22, 2018 | COST | $68.7K | Payment | 300 | $229.06 | Discretionary |
| Oct 22, 2018 | COST | $561.2K | Payment | 2,450 | $229.06 | Discretionary |
| Oct 15, 2018 | COST | $1.5M | Sale | 6,600 | $225.88 | Discretionary |
| Oct 2, 2018 | COST | $0 | Award | 12,454 | $N/A | Discretionary |
| Oct 2, 2018 | COST | $1.0M | Payment | 4,266 | $236.35 | Discretionary |
| Oct 2, 2018 | COST | $0 | Award | 18,680 | $N/A | Discretionary |
| Jan 8, 2018 | COST | $977.5K | Sale | 5,200 | $187.98 | Discretionary |