Costco Wholesale Corporation
COSTNASDAQ#43 by turnover$1,003.32-1.46%Market closed · As of Oct 24, 05:00 AM (KST)
Key filings
All filings on SEC ›Earnings, material events (8-K), quarterly and annual reports, ownership reports
- 2026-10-168-KMaterial event report · Officer/director changeSource ↗
- 2026-10-148-KMaterial event report · Other eventsSource ↗
- 2026-10-0710-KAnnual reportSource ↗
- 2026-09-248-KMaterial event report · Earnings releaseSource ↗
- 2026-07-088-KMaterial event report · Other eventsSource ↗
- 2026-06-03S-3ASRShelf registrationSource ↗
- 2026-06-0310-QQuarterly reportSource ↗
- 2026-05-288-KMaterial event report · Earnings releaseSource ↗
- 2026-04-29SCHEDULE 13G5%+ ownership (passive)Source ↗
- 2026-04-158-KMaterial event report · Other eventsSource ↗
- 2026-03-26SCHEDULE 13G/A5%+ ownership (passive) (Amended)Source ↗
- 2026-03-1110-QQuarterly reportSource ↗
- 2026-03-058-KMaterial event report · Earnings releaseSource ↗
- 2026-01-218-KMaterial event report · Shareholder vote results, Other eventsSource ↗
- 2025-12-1710-QQuarterly reportSource ↗
Filings are in English. Form and item labels are only a classification to help you navigate and do not interpret the filing.
Insider trades & planned sales
Stock transactions by officers and major holders (Form 4) and notices of proposed sale (Form 144)
- 2026-10-144Insider transactionSource ↗
- 2026-10-13144Notice of proposed saleSource ↗
- 2026-09-304Insider transactionSource ↗
- 2026-09-304Insider transactionSource ↗
- 2026-09-303/AInitial insider ownership (Amended)Source ↗
- 2026-09-29144Notice of proposed saleSource ↗
- 2026-09-29144Notice of proposed saleSource ↗
- 2026-09-144Insider transactionSource ↗
- 2026-09-144Insider transactionSource ↗
- 2026-09-144Insider transactionSource ↗