| 25 Jan 2018 | GIFT | COSTCO WHOLESALE CORP /NEW | 59,806 | — | |
| 30 Jan 2018 | OTHER | COSTCO WHOLESALE CORP /NEW | 3,359 | — | |
| 19 Sept 2017 | OTHER | COSTCO WHOLESALE CORP /NEW | 3,953 | — | |
| 17 Jan 2018 | SALE | COSTCO WHOLESALE CORP /NEW | 30,000 | 192.06 USD | |
| 18 Dec 2017 | GIFT | COSTCO WHOLESALE CORP /NEW | 20,324 | — | |
| 24 Oct 2017 | GIFT | COSTCO WHOLESALE CORP /NEW | 155 | — | |
| 19 Sept 2017 | OTHER | COSTCO WHOLESALE CORP /NEW | 3,953 | — | |
| 10 Oct 2017 | GIFT | COSTCO WHOLESALE CORP /NEW | 2,391 | — | |
| 22 Oct 2017 | GRANT_AWARD | COSTCO WHOLESALE CORP /NEW | 1,870 | — | |
| 20 Apr 2017 | OTHER | COSTCO WHOLESALE CORP /NEW | 15,598 | — | |
| 20 Apr 2017 | OTHER | COSTCO WHOLESALE CORP /NEW | 15,598 | — | |
| 12 Jun 2017 | OTHER | COSTCO WHOLESALE CORP /NEW | 13,363 | — | |
| 07 Aug 2017 | GIFT | COSTCO WHOLESALE CORP /NEW | 4,141 | — | |
| 12 Jun 2017 | OTHER | COSTCO WHOLESALE CORP /NEW | 13,363 | — | |
| 24 May 2017 | GRANT_AWARD | COSTCO WHOLESALE CORP /NEW | 140 | 173.01 USD | |
| 24 Mar 2017 | SALE | COSTCO WHOLESALE CORP /NEW | 50,000 | 166.35 USD | |
| 24 Mar 2017 | SALE | COSTCO WHOLESALE CORP /NEW | 50,000 | 166.35 USD | |
| 13 Mar 2017 | SALE | COSTCO WHOLESALE CORP /NEW | 17,000 | 164.52 USD | |
| 15 Dec 2016 | GIFT | COSTCO WHOLESALE CORP /NEW | 1,680 | — | |
| 04 Oct 2016 | OTHER | COSTCO WHOLESALE CORP /NEW | 4,344 | — | |
| 04 Oct 2016 | OTHER | COSTCO WHOLESALE CORP /NEW | 4,344 | — | |
| 16 Dec 2016 | GIFT | COSTCO WHOLESALE CORP /NEW | 8,800 | — | |
| 19 Dec 2016 | SALE | COSTCO WHOLESALE CORP /NEW | 65,000 | 164.07 USD | |
| 22 Oct 2016 | GRANT_AWARD | COSTCO WHOLESALE CORP /NEW | 2,182 | — | |
| 07 Oct 2016 | SALE | COSTCO WHOLESALE CORP /NEW | 20,114 | 149.02 USD | |