Costco Wholesale Corp
COST- Exchange
- Nasdaq
- Industry
- Retail-Variety Stores
- SEC CIK
- 0000909832
No open-market purchases or sales by Costco Wholesale Corp insiders were filed in the last 90 days; 4,260 institutions reported holding it in 13F filings for Q2 2026, worth $301.8B in total; 4 superinvestors hold it, including Markel Group and Gardner Russo & Quinn.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Costco Wholesale Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Costco Wholesale Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Wilcox William Richard | Executive Vice President | 4,194 | Sep 14, 2026 | 2 |
| Rubananko Yoram | Executive Vice President | 10,680 | Sep 14, 2026 | 1 |
| Riel Pierre | Executive Vice President | 14,246 | Sep 14, 2026 | 1 |
| Klauer James C | Executive Vice President | 48,030 | Sep 14, 2026 | 3 |
| Jones Teresa A. | Executive Vice President | 6,598 | Sep 14, 2026 | 3 |
| Frates Caton | Executive Vice President | 8,713 | Sep 14, 2026 | 4 |
| Adamo Claudine | Executive Vice President | 9,334 | Sep 14, 2026 | 3 |
| Raikes Jeffrey S | Director | 6,044 | Jul 14, 2026 | 4 |
| Denman Kenneth D | Director | 4,779 | Jun 25, 2026 | 3 |
| Millerchip Gary | Executive Vice President | 15,465 | Mar 13, 2026 | 2 |
| George Sarah Catherine | Executive Vice President | 0Indirect | Mar 13, 2026 | 1 |
| Decker Susan L | Director | 8,532 | Jan 20, 2026 | 3 |
| Raimondo Gina Marie | Director | 215 | Jan 20, 2026 | 1 |
| Miller Russell D | Sr. Executive Vice President | 8,240Indirect | Jan 12, 2026 | 2 |
| Polit Javier | Executive Vice President | 10,190 | Dec 31, 2025 | 2 |
| Stanton John W | Director | 24,090 | Oct 24, 2025 | 1 |
| Jewell Sarah Mr Sally | Director | 3,613 | Oct 24, 2025 | 1 |
| Wilderotter Mary Agnes | Director | 3,205 | Oct 24, 2025 | 1 |
| James Hamilton E | Director | 55,538 | Oct 24, 2025 | 1 |
| Foulkes Helena | Director | 1,087 | Oct 24, 2025 | 1 |
| Vachris Roland Michael | President and CEO | 52,258 | Oct 24, 2025 | 1 |
| Callans Patrick J | Executive Vice President | 60,895 | Oct 24, 2025 | 1 |
| Sullivan John Christopher | Executive VP | 47,671 | Oct 24, 2025 | 1 |
| Barbre Tiffany Marie | Other: Principal Accounting Officer | 5,155 | Oct 24, 2025 | 1 |
| Jelinek W Craig | Director | 204,365 | Dec 23, 2024 | 0 |
| Galanti Richard A | Executive Vice President | 27,400 | Oct 24, 2024 | 0 |
| Hines Daniel M. | Other: Principal Acctg Officer | 12,186 | Oct 24, 2024 | 0 |
| Munger Charles T | Director | 168,104 | Oct 24, 2023 | 0 |
| Murphy James P. | Executive VP | 38,084 | Oct 25, 2022 | 0 |
| Rose Timothy L. | Executive VP | 33,025 | Sep 14, 2022 | 0 |
| Libenson Richard M | Director, Other: Director Emeritus | 3,561 | Oct 26, 2021 | 0 |
| Portera Joseph P | Executive VP | 11,987 | Sep 16, 2021 | 0 |
| Moulton Paul G | Executive VP | 28,833 | Sep 16, 2021 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jul 12, 2021 (view filing) | Jul 12 | Same day | Vachris Roland MichaelExecutive VP | SSale | −4.00K | $409.40 | −$1.64M | −25.6%11.6K after | |
| Aug 13, 2021 (view filing) | Aug 13 | Same day | Portera Joseph PExecutive VP | SSale | −3.29K | $445.50 | −$1.46M | −64.8%1.79K after | |
| Dec 14, 2021 (view filing) | Dec 13 | 1 day | Callans Patrick JExecutive VP | SSale | −2.50K | $549.03 | −$1.37M | −4.0%60.0K after | |
| Dec 14, 2021 (view filing) | Dec 13 | 1 day | Rubananko YoramExecutive VP | SSale | −4.00K | $550.72 | −$2.20M | −37.8%6.59K after | |
| Dec 14, 2021 (view filing) | Dec 13 | 1 day | Murphy James P.Executive VP | SSale | −5.00K | $559.32 | −$2.80M | −11.0%40.3K after | |
| Dec 14, 2021 (view filing) | Dec 13 | 1 day | Miller Russell DExecutive Vice President | SSale | −4.00K | $556.02 | −$2.22M | −33.2%8.04K after | |
| Dec 15, 2021 (view filing) | Dec 15 | Same day | Galanti Richard AExecutive VP and CFO | SSale | −2.22K | $554.09 | −$1.23M | −7.6%27.0K after | 2 lots |
| Dec 22, 2021 (view filing) | Dec 21 | 1 day | Wilderotter Mary AgnesDirector | PPurchase | +925 | $540.13 | +$499.6K | +9.7%10.4K after | |
| Jan 28, 2022 (view filing) | Jan 27 | 1 day | Vachris Roland MichaelExecutive VP | SSale | −3.32K | $492.45 | −$1.63M | −18.5%14.6K after | |
| Mar 24, 2022 (view filing) | Mar 23 | 1 day | Denman Kenneth DDirector | SSale | −250 | $554.68 | −$138.7K | −4.4%5.50K after | |
| Mar 29, 2022 (view filing) | Mar 29 | Same day | Rose Timothy L.Executive VP | SSale | −4.00K | $566.29 | −$2.27M | −12.3%28.4K after | |
| Apr 8, 2022 (view filing) | Apr 8 | Same day | Hines Daniel M.Other: Principal Acctg Officer | SSale | −4.50K | $603.00 | −$2.71M | −25.5%13.1K after | |
| Apr 8, 2022 (view filing) | Apr 8 | Same day | Adamo ClaudineExecutive Vice President | SSale | −500 | $602.03 | −$301.0K | −4.8%9.94K after | |
| Jun 8, 2022 (view filing) | Jun 7 | 1 day | Wilderotter Mary AgnesDirector | PPurchase | +850 | $470.74 | +$400.1K | +8.1%11.3K after | |
| Jun 23, 2022 (view filing) | Jun 22 | 1 day | Murphy James P.Executive VP | SSale | −2.50K | $464.00 | −$1.16M | −6.2%37.7K after | |
| Jul 15, 2022 (view filing) | Jul 14 | 1 day | Galanti Richard AExecutive VP and CFO | SSale | −1.00K | $505.60 | −$505.6K | −3.7%25.8K after | |
| Jul 15, 2022 (view filing) | Jul 15 | Same day | Denman Kenneth DDirector | SSale | −300 | $521.68 | −$156.5K | −5.5%5.20K after | |
| Jul 21, 2022 (view filing) | Jul 20 | 1 day | Murphy James P.Executive VP | SSale | −1.50K | $525.20 | −$787.8K | −4.0%36.2K after | |
| Oct 7, 2022 (view filing) | Oct 7 | Same day | Galanti Richard AExecutive VP and CFO | SSale | −2.00K | $471.12 | −$942.2K | −6.4%29.3K after | |
| Oct 26, 2022 (view filing) | Oct 25 | 1 day | Galanti Richard AExecutive VP and CFO | SSale | −1.50K | $477.65 | −$716.5K | −5.1%27.8K after | |
| Oct 27, 2022 (view filing) | Oct 26 | 1 day | Adamo ClaudineExecutive Vice President | SSale | −2.00K | $495.97 | −$991.9K | −26.0%5.68K after | |
| Nov 4, 2022 (view filing) | Nov 4 | Same day | Miller Russell DExecutive Vice President | SSale | −1.00K | $483.58 | −$483.6K | −7.9%11.6K after | |
| Dec 13, 2022 (view filing) | Dec 12 | 1 day | Decker Susan LDirector | SSale | −952 | $483.00 | −$459.8K | −4.8%18.9K after | |
| Jan 31, 2023 (view filing) | Jan 27 | 4 days | Klauer James CExecutive Vice President | SSale | −2.50K | $503.69 | −$1.26M | −5.8%40.9K after | |
| Mar 7, 2023 (view filing) | Mar 6 | 1 day | Vachris Roland MichaelPresident and COO | SSale | −4.10K | $476.29 | −$1.95M | −18.5%18.1K after | |
| Mar 8, 2023 (view filing) | Mar 7 | 1 day | Miller Russell DSenior EVP | SSale | −1.50K | $488.95 | −$733.4K | −12.9%10.1K after | |
| Mar 15, 2023 (view filing) | Mar 14 | 1 day | Galanti Richard AExecutive VP and CFO | SSale | −2.07K | $483.32 | −$999.5K | −7.5%25.4K after | |
| Apr 13, 2023 (view filing) | Apr 11 | 2 days | Frates CatonExecutive Vice President | SSale | −600 | $497.35 | −$298.4K | −12.2%4.32K after | |
| Jun 9, 2023 (view filing) | Jun 7 | 2 days | Decker Susan LDirector | SSale | −3.97K | $514.14 | −$2.04M | −21.0%14.9K after | 3 lots |
| Jun 15, 2023 (view filing) | Jun 13 | 2 days | Galanti Richard AExecutive VP and CFO | SSale | −1.50K | $522.03 | −$783.0K | −5.9%23.9K after | |
| Jun 29, 2023 (view filing) | Jun 28 | 1 day | Decker Susan LDirector | SSale | −1.56K | $533.00 | −$834.1K | −10.5%13.3K after | |
| Oct 11, 2023 (view filing) | Oct 6 | 5 days | Frates CatonExecutive Vice President | SSale | −1.20K | $562.64 | −$675.2K | −12.5%8.36K after | |
| Oct 11, 2023 (view filing) | Oct 9 | 2 days | Callans Patrick JExecutive VP | SSale | −2.50K | $553.76 | −$1.38M | −3.5%67.9K after | |
| Oct 12, 2023 (view filing) | Oct 10 | 2 days | Galanti Richard AExecutive VP and CFO | SSale | −2.00K | $565.57 | −$1.13M | −6.6%28.1K after | |
| Oct 12, 2023 (view filing) | Oct 11 | 1 day | Klauer James CExecutive Vice President | SSale | −1.50K | $562.01 | −$843.0K | −3.2%45.1K after | |
| Oct 24, 2023 (view filing) | Oct 23 | 1 day | Adamo ClaudineExecutive Vice President | SSale | −2.56K | $548.92 | −$1.41M | −24.0%8.13K after | |
| Nov 6, 2023 (view filing) | Nov 3 | 3 days | Miller Russell DSenior EVP | SSale | −4.50K | $557.75 | −$2.51M | −29.4%10.8K after | |
| Nov 8, 2023 (view filing) | Nov 7 | 1 day | Riel PierreEVP | SSale | −3.00K | $571.12 | −$1.71M | −28.8%7.42K after | |
| Nov 13, 2023 (view filing) | Nov 8 | 5 days | Galanti Richard AExecutive VP and CFO | SSale | −2.00K | $566.09 | −$1.13M | −7.3%25.4K after | 2 lots |
| Dec 20, 2023 (view filing) | Dec 19 | 1 day | Galanti Richard AExecutive VP and CFO | SSale | −1.11K | $680.21 | −$756.2K | −4.4%24.3K after | |
| Jan 2, 2024 (view filing) | Dec 28, 2023 | 5 days | Hines Daniel M.Other: Principal Acctg Officer | SSale | −1.40K | $662.81 | −$927.9K | −8.4%15.3K after | |
| Jan 10, 2024 (view filing) | Jan 9 | 1 day | Hines Daniel M.Other: Principal Acctg Officer | SSale | −1.40K | $662.30 | −$927.2K | −9.1%13.9K after | |
| Jan 16, 2024 (view filing) | Jan 16 | Same day | Frates CatonExecutive Vice President | SSale | −740 | $683.50 | −$505.8K | −9.9%6.72K after | |
| Jan 18, 2024 (view filing) | Jan 18 | Same day | Rubananko YoramExecutive VP | SSale | −2.50K | $680.33 | −$1.70M | −29.7%5.91K after | |
| Jan 23, 2024 (view filing) | Jan 23 | Same day | Jelinek W CraigDirector | SSale | −8.00K | $685.93 | −$5.49M | −3.6%216.2K after | |
| Feb 12, 2024 (view filing) | Feb 9 | 3 days | Decker Susan LDirector | SSale | −1.44K | $723.48 | −$1.04M | −10.4%12.4K after | |
| Mar 13, 2024 (view filing) | Mar 11 | 2 days | Callans Patrick JExecutive VP | SSale | −2.50K | $714.86 | −$1.79M | −3.8%62.9K after | |
| Mar 13, 2024 (view filing) | Mar 11 | 2 days | Adamo ClaudineExecutive Vice President | SSale | −1.50K | $714.83 | −$1.07M | −18.3%6.69K after | |
| Apr 18, 2024 (view filing) | Apr 17 | 1 day | Miller Russell DSenior EVP | SSale | −785 | $722.86 | −$567.4K | −7.3%10.0K after | |
| Jul 15, 2024 (view filing) | Jul 12-15 | 3 days | Hines Daniel M.Other: Principal Acctg Officer | SSale | −3.00K | $846.37 | −$2.54M | −21.4%11.0K after | 2 lots |