Costco Wholesale Corp. documents
Costco Wholesale (COST) annual report: the 10-K filed 7 October 2026 for the year ended 30 August 2026. Proxy statement (DEF 14A) filed 4 December 2025; latest 10-Q filed 3 June 2026 for the quarter ended 10 May 2026. Each links to the document on EDGAR, with 4 earnings press releases.
Earnings press releases (exhibit 99 to each results 8-K)
| Filed | Document | Open | Where |
|---|---|---|---|
| 24 September 2026 | Results press release, exhibit 99 to the 8-K filed 24 September 2026 | The release | EDGAR folder |
| 28 May 2026 | Results press release, exhibit 99 to the 8-K filed 28 May 2026 | The release | EDGAR folder |
| 5 March 2026 | Results press release, exhibit 99 to the 8-K filed 5 March 2026 | The release | EDGAR folder |
| 11 December 2025 | Results press release, exhibit 99 to the 8-K filed 11 December 2025 | The release | EDGAR folder |
Annual reports (10-K)
| Filed | Document | Open | Where |
|---|---|---|---|
| 7 October 2026 | 10-K, period ended 30 August 2026 | The document | EDGAR folder |
Quarterly reports (10-Q)
| Filed | Document | Open | Where |
|---|---|---|---|
| 3 June 2026 | 10-Q, period ended 10 May 2026 | The document | EDGAR folder |
| 11 March 2026 | 10-Q, period ended 15 February 2026 | The document | EDGAR folder |
| 17 December 2025 | 10-Q, period ended 23 November 2025 | The document | EDGAR folder |
Proxy statements
| Filed | Document | Open | Where |
|---|---|---|---|
| 4 December 2025 | DEF 14A, period ended 31 August 2025 | The document | EDGAR folder |
Annual report to shareholders
| Filed | Document | Open | Where |
|---|---|---|---|
| 4 December 2025 | ARS, period ended 31 August 2025 | The document | EDGAR folder |
Employee plan reports
| Filed | Document | Open | Where |
|---|---|---|---|
| 29 June 2026 | 11-K, period ended 31 December 2025 | The document | EDGAR folder |