| 2011-10-14 | Sale | Costco Wholesale Corporation COST | Executive VP | 44,000 0.0054% | $43.79 | $1.93M | +7.28% | |
| 2009-10-13 | Sale | Costco Wholesale Corporation COST | Executive VP | 75,000 0.011% | $37.35 | $2.8M | +1.49% | |
| 2007-02-12 | Sale | Costco Wholesale Corporation COST | Executive VP | 48,000 0.0107% | $55.82 | $2.68M | +9.21% | |
| 2007-01-12 | Sale | Costco Wholesale Corporation COST | Executive VP | 48,000 0.0106% | $55.82 | $2.68M | +6.24% | |
| 2006-04-28 | Sale | Costco Wholesale Corporation COST | Executive VP | 280,000 0.0594% | $54.35 | $15.22M | -1% | |
| 2005-10-10 | Sale | Costco Wholesale Corporation COST | Executive VP | 70,000 0.0147% | $45.33 | $3.17M | +13.09% | |
| 2004-10-14 | Sale | Costco Wholesale Corporation COST | Executive VP | 50,000 0.0107% | $45.36 | $2.27M | +1.23% |