Legal Insider Trading Data | Free and Professional Subscription Services | Insider Insights urn:uuid:54405732-ca87-208c-c0d1-29c13c92550b 2026-06-27T09:30:57-04:00 Jonathan Moreland Profit from legal insider trading. InsiderInsights.com provides free insider trading data tools and resources, and professional grade subscription based real time Form 4 data, analysis and services COST: DENMAN KENNETH D (DIR) Sold (S) 885 Shares of COSTCO WHOLESALE CORP NEW for $957.45 on 6/23 urn:uuid:42536e50-d9c9-54b6-6aa6-d7a742f336ca 2026-06-25T16:12:30-04:00 COST: GEORGE SARAH CATHERINE (VP) Filed a Form 3, Becoming a Registered Insider at COSTCO WHOLESALE CORP NEW With Initial Direct Holdings of 4,127 urn:uuid:96f6ba82-0611-f2ed-2dc5-4ff018bf2d36 2026-05-15T18:31:39-04:00 COST: FRATES CATON (VP) Sold (S) 700 Shares of COSTCO WHOLESALE CORP NEW for $993.00 on 4/1 urn:uuid:9b2acd74-528c-8412-010d-f39b68a06b97 2026-04-01T18:13:26-04:00 COST: GEORGE SARAH CATHERINE (VP) Disposed (JS) 642 Shares of COSTCO WHOLESALE CORP NEW for $991.21 on 3/12 urn:uuid:19e13a35-6af8-26d5-9fdd-2aa7df981ae2 2026-03-13T16:12:33-04:00 COST: MILLERCHIP GARY (VP) Disposed (JS) 1,154 Shares of COSTCO WHOLESALE CORP NEW for $992.23 on 3/11 urn:uuid:78407811-1912-94ca-03d7-aaf9d3896916 2026-03-13T16:10:05-04:00 COST: GEORGE SARAH CATHERINE (VP) Filed a Form 3, Becoming a Registered Insider at COSTCO WHOLESALE CORP NEW With Initial Direct Holdings of 1,401 urn:uuid:2ba0d06f-becd-8170-c3dd-f097d3f5bc02 2026-03-11T17:06:06-04:00 COST: GEORGE SARAH CATHERINE (VP) Filed a Form 3, Becoming a Registered Insider at COSTCO WHOLESALE CORP NEW With Initial Indirect Holdings of 642 urn:uuid:7a633d4f-e00f-98e0-9351-16e296e51908 2026-03-11T17:06:06-04:00 COST: ADAMO CLAUDINE (VP) Sold (S) 730 Shares of COSTCO WHOLESALE CORP NEW for $1,003.02 on 3/9 urn:uuid:1e1150cf-c57b-9440-3117-6d4a79f24a61 2026-03-11T16:08:32-04:00 COST: RAIKES JEFFREY S (DIR) Disposed (JS) 5,115 Shares of COSTCO WHOLESALE CORP NEW for $0.00 on 1/27 urn:uuid:cd60c397-26d6-3e55-cd73-dc7b8d0b9fa0 2026-01-28T18:46:11-05:00 COST: JONES TERESA A (VP) Disposed (JS) 300 Shares of COSTCO WHOLESALE CORP NEW for $0.00 on 1/27 urn:uuid:ea73eca6-134c-a20e-394f-a5bc0790f9d7 2026-01-28T18:43:58-05:00