Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Costco Wholesale Corp /new (COST) since 2009 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Costco Wholesale Corp /new. Table 2 shows the detailed insider transactions. This company's CIK number is 909832.
Total stock buying since 2009: $3,181,648.
Total stock sales since 2009: $361,361,106.
Total stock option exercises since 2009: $3,751,069.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 0 | $0 | 20,597 | $19,972,697 | 0 | $0 |
| 2024 | 0 | $0 | 38,415 | $30,580,876 | 0 | $0 |
| 2023 | 0 | $0 | 39,580 | $21,383,060 | 0 | $0 |
| 2022 | 850 | $400,124 | 23,318 | $12,312,770 | 0 | $0 |
| 2021 | 925 | $499,619 | 53,943 | $23,643,910 | 0 | $0 |
| 2020 | 0 | $0 | 70,778 | $23,253,976 | 0 | $0 |
| 2019 | 3,000 | $727,935 | 117,035 | $31,148,786 | 0 | $0 |
| 2018 | 0 | $0 | 231,055 | $47,034,641 | 0 | $0 |
| 2017 | 0 | $0 | 247,855 | $42,193,283 | 0 | $0 |
| 2016 | 0 | $0 | 280,427 | $42,801,163 | 0 | $0 |
| 2015 | 10,000 | $1,553,970 | 415,542 | $63,456,086 | 96,132 | $3,751,069 |
| 2011 | 0 | $0 | 19,253 | $1,608,115 | 0 | $0 |
| 2010 | 0 | $0 | 20,000 | $1,270,203 | 0 | $0 |
| 2009 | 0 | $0 | 12,000 | $701,540 | 0 | $0 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2025-08 | 0 | $0 | 600 | $595,230 | 0 | $0 |
| 2025-07 | 0 | $0 | 4,000 | $3,899,852 | 0 | $0 |
| 2025-06 | 0 | $0 | 5,547 | $5,572,213 | 0 | $0 |
| 2025-04 | 0 | $0 | 4,000 | $3,924,280 | 0 | $0 |
| 2025-03 | 0 | $0 | 6,450 | $5,981,122 | 0 | $0 |
| 2024-10 | 0 | $0 | 8,616 | $7,698,596 | 0 | $0 |
| 2024-09 | 0 | $0 | 7,400 | $6,581,322 | 0 | $0 |
| 2024-08 | 0 | $0 | 1,620 | $1,412,392 | 0 | $0 |
| 2024-07 | 0 | $0 | 3,354 | $2,840,461 | 0 | $0 |
| 2024-04 | 0 | $0 | 785 | $567,442 | 0 | $0 |
| 2024-03 | 0 | $0 | 4,000 | $2,859,387 | 0 | $0 |
| 2024-01 | 0 | $0 | 12,640 | $8,621,276 | 0 | $0 |
| 2023-12 | 0 | $0 | 2,511 | $1,683,650 | 0 | $0 |
| 2023-11 | 0 | $0 | 9,500 | $5,355,389 | 0 | $0 |
| 2023-10 | 0 | $0 | 9,765 | $5,441,695 | 0 | $0 |
| 2023-06 | 0 | $0 | 7,036 | $3,658,962 | 0 | $0 |
| 2023-04 | 0 | $0 | 600 | $298,408 | 0 | $0 |
| 2023-03 | 0 | $0 | 7,668 | $3,685,731 | 0 | $0 |
| 2023-01 | 0 | $0 | 2,500 | $1,259,225 | 0 | $0 |
| 2022-12 | 0 | $0 | 952 | $459,816 | 0 | $0 |
| 2022-11 | 0 | $0 | 1,000 | $483,578 | 0 | $0 |
| 2022-10 | 0 | $0 | 3,500 | $1,708,416 | 0 | $0 |
| 2022-07 | 0 | $0 | 2,800 | $1,449,896 | 0 | $0 |
| 2022-06 | 850 | $400,124 | 2,500 | $1,160,000 | 0 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-08-20 | Jones Teresa A. (Executive Vice President) | Sale | 600 | 992.05 | 595,230 |
| 2025-07-14 | Rubanenko Yoram (Executive Vice President) | Sale | 4,000 | 974.96 | 3,899,852 |
| 2025-06-18 | Decker Susan L (Director) | Sale | 547 | 979.20 | 535,621 |
| 2025-06-09 | Callans Patrick J (Executive Vice President) | Sale | 3,000 | 1,002.77 | 3,008,298 |
| 2025-06-06 | Riel Pierre (Executive Vice President) | Sale | 2,000 | 1,014.15 | 2,028,294 |
| 2025-04-17 | Klauer James C (Executive Vice President) | Sale | 4,000 | 981.07 | 3,924,280 |
| 2025-03-27 | Millerchip Gary (Executive Vice President) | Sale | 1,100 | 940.01 | 1,034,006 |
| 2025-03-24 | Adamo Claudine (Executive Vice President) | Sale | 900 | 922.56 | 830,304 |
| 2025-03-18 | Frates Caton (Executive Vice President) | Sale | 850 | 900.25 | 765,212 |
| 2025-03-11 | Vachris Roland Michael (President and CEO) | Sale | 3,600 | 931.00 | 3,351,600 |
| 2024-10-24 | Galanti Richard A (Executive Vice President) | Sale | 1,416 | 894.68 | 1,266,866 |
| 2024-10-23 | Jones Teresa A. (Executive Vice President) | Sale | 800 | 896.54 | 717,236 |
| 2024-10-15 | Riel Pierre (Executive Vice President) | Sale | 2,000 | 896.71 | 1,793,426 |
| 2024-10-11 | Miller Russell D (Sr. Executive Vice President) | Sale | 4,400 | 891.15 | 3,921,068 |
| 2024-09-30 | Frates Caton (Executive Vice President) | Sale | 1,700 | 883.35 | 1,501,695 |
| 2024-09-30 | Adamo Claudine (Executive Vice President) | Sale | 3,200 | 888.99 | 2,844,777 |
| 2024-09-30 | Callans Patrick J (Executive Vice President) | Sale | 2,500 | 893.94 | 2,234,850 |
| 2024-08-15 | Decker Susan L (Director) | Sale | 620 | 876.50 | 543,430 |
| 2024-08-15 | Galanti Richard A (Executive Vice President) | Sale | 500 | 874.05 | 437,025 |
| 2024-08-13 | Galanti Richard A (Executive Vice President) | Sale | 500 | 863.88 | 431,937 |
| 2024-07-25 | Jones Teresa A. (Executive Vice President) | Sale | 4 | 832.55 | 3,330 |
| 2024-07-15 | Hines Daniel M. (Other) | Sale | 1,500 | 848.53 | 1,272,796 |
| 2024-07-15 | Denman Kenneth D (Director) | Sale | 350 | 851.53 | 298,035 |
| 2024-07-12 | Hines Daniel M. (Other) | Sale | 1,500 | 844.20 | 1,266,300 |
| 2024-04-17 | Miller Russell D (Senior EVP) | Sale | 785 | 722.86 | 567,442 |
| 2024-03-11 | Adamo Claudine (Executive Vice President) | Sale | 1,500 | 714.83 | 1,072,237 |
| 2024-03-11 | Callans Patrick J (Executive VP) | Sale | 2,500 | 714.86 | 1,787,150 |
| 2024-01-23 | Jelinek W Craig (Director) | Sale | 8,000 | 685.93 | 5,487,456 |
| 2024-01-18 | Rubanenko Yoram (Executive VP) | Sale | 2,500 | 680.33 | 1,700,812 |
| 2024-01-16 | Frates Caton (Executive Vice President) | Sale | 740 | 683.50 | 505,789 |
| 2024-01-09 | Hines Daniel M. (Other) | Sale | 1,400 | 662.30 | 927,219 |
| 2023-12-28 | Hines Daniel M. (Other) | Sale | 1,400 | 662.81 | 927,933 |
| 2023-12-19 | Galanti Richard A (Executive VP and CFO) | Sale | 1,111 | 680.21 | 755,717 |
| 2023-11-08 | Galanti Richard A (Executive VP and CFO) | Sale | 2,000 | 566.09 | 1,132,178 |
| 2023-11-07 | Riel Pierre (EVP) | Sale | 3,000 | 571.12 | 1,713,345 |
| 2023-11-03 | Miller Russell D (Senior EVP) | Sale | 4,500 | 557.75 | 2,509,866 |
| 2023-10-23 | Adamo Claudine (Executive Vice President) | Sale | 2,565 | 548.92 | 1,407,979 |
| 2023-10-11 | Klauer James C (Executive Vice President) | Sale | 1,500 | 562.01 | 843,016 |
| 2023-10-10 | Galanti Richard A (Executive VP and CFO) | Sale | 2,000 | 565.57 | 1,131,130 |
| 2023-10-09 | Callans Patrick J (Executive VP) | Sale | 2,500 | 553.76 | 1,384,400 |
| 2023-10-06 | Frates Caton (Executive Vice President) | Sale | 1,200 | 562.64 | 675,170 |
| 2023-06-28 | Decker Susan L (Director) | Sale | 1,565 | 533.00 | 834,145 |
| 2023-06-13 | Galanti Richard A (Executive VP and CFO) | Sale | 1,500 | 522.02 | 783,037 |
| 2023-06-07 | Decker Susan L (Director) | Sale | 3,971 | 514.17 | 2,041,780 |
| 2023-04-11 | Frates Caton (Executive Vice President) | Sale | 600 | 497.35 | 298,408 |
| 2023-03-14 | Galanti Richard A (Executive VP and CFO) | Sale | 2,068 | 483.32 | 999,505 |
| 2023-03-07 | Miller Russell D (Senior EVP) | Sale | 1,500 | 488.95 | 733,429 |
| 2023-03-06 | Vachris Roland Michael (President and COO) | Sale | 4,100 | 476.29 | 1,952,797 |
| 2023-01-27 | Klauer James C (Executive Vice President) | Sale | 2,500 | 503.69 | 1,259,225 |
| 2022-12-12 | Decker Susan L (Director) | Sale | 952 | 483.00 | 459,816 |
| 2022-11-04 | Miller Russell D (Executive Vice President) | Sale | 1,000 | 483.58 | 483,578 |
| 2022-10-26 | Adamo Claudine (Executive Vice President) | Sale | 2,000 | 495.97 | 991,946 |
| 2022-10-25 | Galanti Richard A (Executive VP and CFO) | Sale | 1,500 | 477.65 | 716,470 |
| 2022-07-20 | Murphy James P. (Executive VP) | Sale | 1,500 | 525.20 | 787,797 |
| 2022-07-15 | Denman Kenneth D (Director) | Sale | 300 | 521.68 | 156,502 |
| 2022-07-14 | Galanti Richard A (Executive VP and CFO) | Sale | 1,000 | 505.60 | 505,597 |
| 2022-06-22 | Murphy James P. (Executive VP) | Sale | 2,500 | 464.00 | 1,160,000 |
| 2022-06-07 | Wilderotter Mary Agnes (Director) | Buy | 850 | 470.74 | 400,124 |
| 2022-04-08 | Adamo Claudine (Executive Vice President) | Sale | 500 | 602.03 | 301,015 |
| 2022-04-08 | Hines Daniel M. (Other) | Sale | 4,498 | 603.00 | 2,712,302 |
| 2022-03-29 | Rose Timothy L. (Executive VP) | Sale | 4,000 | 566.29 | 2,265,144 |
| 2022-03-23 | Denman Kenneth D (Director) | Sale | 250 | 554.67 | 138,668 |
| 2022-01-27 | Vachris Roland Michael (Executive VP) | Sale | 3,318 | 492.45 | 1,633,935 |
| 2021-12-21 | Wilderotter Mary Agnes (Director) | Buy | 925 | 540.13 | 499,619 |
| 2021-12-15 | Galanti Richard A (Executive VP and CFO) | Sale | 2,218 | 557.05 | 1,235,547 |
| 2021-12-13 | Rubananko Yoram (Executive VP) | Sale | 4,000 | 550.72 | 2,202,884 |
| 2021-12-13 | Callans Patrick J (Executive VP) | Sale | 2,500 | 549.03 | 1,372,575 |
| 2021-12-13 | Miller Russell D (Executive Vice President) | Sale | 4,000 | 556.02 | 2,224,092 |
| 2021-12-13 | Murphy James P. (Executive VP) | Sale | 5,000 | 559.32 | 2,796,615 |
| 2021-08-13 | Portera Joseph P (Executive VP) | Sale | 3,287 | 445.50 | 1,464,358 |
| 2021-07-12 | Vachris Roland Michael (Executive VP) | Sale | 4,000 | 409.40 | 1,637,612 |
| 2021-06-28 | Rose Timothy L. (Executive VP) | Sale | 4,000 | 396.14 | 1,584,560 |
| 2021-06-14 | Klauer James C (Executive Vice President) | Sale | 5,000 | 380.53 | 1,902,649 |
| 2021-06-07 | Callans Patrick J (Executive VP) | Sale | 2,500 | 384.31 | 960,775 |
| 2021-04-29 | Galanti Richard A (Executive VP and CFO) | Sale | 2,230 | 372.06 | 829,682 |
| 2021-03-22 | Vachris Roland Michael (Executive VP) | Sale | 4,300 | 334.30 | 1,437,477 |
| 2021-01-27 | Decker Susan L (Director) | Sale | 694 | 363.25 | 252,095 |
| 2021-01-13 | Decker Susan L (Director) | Sale | 1,199 | 366.11 | 438,965 |
| 2021-01-08 | Moulton Paul G (Executive VP) | Sale | 9,015 | 366.50 | 3,304,024 |
| 2020-12-30 | Decker Susan L (Director) | Sale | 861 | 375.75 | 323,520 |
| 2020-12-30 | Galanti Richard A (Executive VP and CFO) | Sale | 1,000 | 374.49 | 374,494 |
| 2020-12-21 | Decker Susan L (Director) | Sale | 1,000 | 362.59 | 362,590 |
| 2020-12-14 | Callans Patrick J (Executive VP) | Sale | 2,500 | 374.64 | 936,612 |
| 2020-12-14 | Miller Russell D (Executive Vice President) | Sale | 5,000 | 377.24 | 1,886,215 |
| 2020-09-30 | Denman Kenneth D (Director) | Sale | 300 | 355.69 | 106,705 |
| 2020-09-29 | Portera Joseph P (Executive VP) | Sale | 6,000 | 348.00 | 2,088,000 |
| 2020-09-28 | Decker Susan L (Director) | Sale | 2,500 | 347.90 | 869,750 |
| 2020-08-21 | Galanti Richard A (Executive VP and CFO) | Sale | 1,754 | 345.00 | 605,131 |
| 2020-08-14 | Decker Susan L (Director) | Sale | 1,250 | 338.00 | 422,500 |
| 2020-08-13 | Decker Susan L (Director) | Sale | 1,250 | 335.83 | 419,793 |
| 2020-08-07 | Klauer James C (Executive Vice President) | Sale | 4,000 | 342.72 | 1,370,880 |
| 2020-07-14 | Murphy James P. (Executive VP) | Sale | 5,000 | 326.00 | 1,630,000 |
| 2020-07-13 | Decker Susan L (Director) | Sale | 2,000 | 326.60 | 653,200 |
| 2020-07-10 | Galanti Richard A (Executive VP and CFO) | Sale | 2,730 | 325.07 | 887,438 |
| 2020-07-02 | Decker Susan L (Director) | Sale | 685 | 308.50 | 211,322 |
| 2020-07-01 | Decker Susan L (Director) | Sale | 1,155 | 302.57 | 349,472 |
| 2020-06-19 | Vachris Roland Michael (Executive VP) | Sale | 4,000 | 300.95 | 1,203,808 |
| 2020-06-11 | Rose Timothy L. (Executive VP) | Sale | 6,000 | 308.05 | 1,848,306 |
| 2020-06-05 | Callans Patrick J (Executive VP) | Sale | 2,500 | 309.22 | 773,050 |
| 2020-06-05 | Hines Daniel M. (Other) | Sale | 5,000 | 309.31 | 1,546,525 |
| 2020-06-05 | Decker Susan L (Director) | Sale | 1,995 | 312.00 | 622,440 |
| 2020-04-22 | Murphy James P. (Executive VP) | Sale | 5,000 | 310.00 | 1,550,000 |
| 2020-04-20 | Decker Susan L (Director) | Sale | 1,000 | 314.83 | 314,826 |
| 2020-03-20 | Decker Susan L (Director) | Sale | 1,000 | 297.00 | 297,000 |
| 2020-03-19 | Galanti Richard A (Executive VP and CFO) | Sale | 1,448 | 306.51 | 443,833 |
| 2020-01-14 | Decker Susan L (Director) | Sale | 3,850 | 300.41 | 1,156,566 |
| 2019-12-17 | Vachris Roland Michael (Executive VP) | Sale | 6,000 | 295.22 | 1,771,296 |
| 2019-12-16 | Callans Patrick J (Executive VP) | Sale | 2,000 | 293.99 | 587,986 |
| 2019-11-15 | Decker Susan L (Director) | Sale | 1,703 | 303.01 | 516,032 |
| 2019-11-13 | Galanti Richard A (Executive VP and CFO) | Sale | 1,984 | 302.80 | 600,763 |
| 2019-11-08 | Miller Russell D (Executive Vice President) | Sale | 1,000 | 302.83 | 302,833 |
| 2019-11-08 | Moulton Paul G (Executive VP) | Sale | 3,978 | 303.05 | 1,205,524 |
| 2019-10-30 | Libenson Richard M (Director) | Sale | 1,703 | 298.25 | 507,914 |
| 2019-10-30 | Portera Joseph P (Executive VP) | Sale | 14,095 | 299.52 | 4,221,734 |
| 2019-10-23 | Hines Daniel M. (Other) | Sale | 5,000 | 298.46 | 1,492,285 |
| 2019-10-18 | Decker Susan L (Director) | Sale | 1,228 | 303.05 | 372,145 |
| 2019-10-17 | Decker Susan L (Director) | Sale | 1,008 | 302.50 | 304,920 |
| 2019-10-11 | Decker Susan L (Director) | Sale | 333 | 297.50 | 99,067 |
| 2019-10-11 | Moulton Paul G (Executive VP) | Sale | 5,976 | 298.06 | 1,781,188 |
| 2019-07-03 | Decker Susan L (Director) | Sale | 1,646 | 268.25 | 441,539 |
| 2019-06-24 | Vachris Roland Michael (Executive VP) | Sale | 3,700 | 267.25 | 988,821 |
| 2019-06-20 | Murphy James P. (Executive VP) | Sale | 10,000 | 265.85 | 2,658,530 |
| 2019-06-20 | Galanti Richard A (Executive VP and CFO) | Sale | 3,000 | 266.39 | 799,178 |
| 2019-06-07 | Callans Patrick J (Executive VP) | Sale | 2,000 | 252.15 | 504,308 |
| 2019-06-07 | Klauer James C (Executive Vice President) | Sale | 5,000 | 255.65 | 1,278,225 |
| 2019-06-07 | Hines Daniel M. (Other) | Sale | 6,000 | 252.63 | 1,515,756 |
| 2019-06-07 | Decker Susan L (Director) | Sale | 2,790 | 254.69 | 710,579 |
| 2019-04-01 | Meisenbach John W (Director) | Buy | 3,000 | 242.65 | 727,935 |
| 2019-03-26 | Decker Susan L (Director) | Sale | 2,350 | 240.00 | 564,000 |
| 2019-03-13 | Rose Timothy L. (Executive VP) | Sale | 6,000 | 234.27 | 1,405,626 |
| 2019-03-12 | Decker Susan L (Director) | Sale | 2,049 | 232.00 | 475,368 |
| 2019-03-12 | Moulton Paul G (Executive VP) | Sale | 8,189 | 232.74 | 1,905,932 |
| 2019-03-12 | Galanti Richard A (Executive VP and CFO) | Sale | 2,000 | 231.40 | 462,804 |
| 2019-03-11 | Portera Joseph P (Executive VP) | Sale | 11,765 | 228.51 | 2,688,478 |
| 2019-03-11 | Galanti Richard A (Executive VP and CFO) | Sale | 2,188 | 229.61 | 502,393 |
| 2019-01-04 | Decker Susan L (Director) | Sale | 1,611 | 206.12 | 332,067 |
| 2019-01-02 | Decker Susan L (Director) | Sale | 739 | 205.00 | 151,495 |
| 2018-10-30 | Jelinek W Craig (President and CEO) | Sale | 11,000 | 225.60 | 2,481,622 |
| 2018-10-30 | Galanti Richard A (Executive VP and CFO) | Sale | 4,163 | 227.23 | 945,941 |
| 2018-10-29 | Jelinek W Craig (President and CEO) | Sale | 11,500 | 221.52 | 2,547,480 |
| 2018-10-25 | Libenson Richard M (Director) | Sale | 2,049 | 224.00 | 458,976 |
| 2018-10-25 | Lazarus Franz E (Executive VP) | Sale | 23,000 | 226.76 | 5,215,457 |
| 2018-10-15 | Vachris Roland Michael (Executive VP) | Sale | 6,600 | 225.88 | 1,490,808 |
| 2018-10-01 | Meisenbach John W (Director) | Sale | 3,000 | 235.81 | 707,430 |
| 2018-09-04 | Meisenbach John W (Director) | Sale | 3,000 | 233.14 | 699,420 |
| 2018-08-01 | Meisenbach John W (Director) | Sale | 3,000 | 218.65 | 655,950 |
| 2018-07-23 | Murphy James P. (Executive VP) | Sale | 15,000 | 219.22 | 3,288,255 |
| 2018-07-02 | Meisenbach John W (Director) | Sale | 3,000 | 208.42 | 625,260 |
| 2018-06-18 | Moulton Paul G (Executive VP) | Sale | 5,585 | 206.83 | 1,155,134 |
| 2018-06-15 | Galanti Richard A (Executive VP and CFO) | Sale | 2,406 | 207.11 | 498,313 |
Insider trading activities including stock purchases, stock sales, and option exercises of COST listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Costco Wholesale Corp /new (symbol COST, CIK number 909832) see the Securities and Exchange Commission (SEC) website.