SEC filings · COST
Costco Wholesale SEC filings
Every annual report, quarterly report, proxy statement and current report Costco Wholesale has filed with the SEC since 2025, each linked to the original on SEC EDGAR. Filing.fyi links to the SEC; it does not host copies.
Annual reports (10-K)
- Oct 7, 202610-KAnnual report Period ended Aug 30, 2026
- Oct 8, 202510-KAnnual report Period ended Aug 31, 2025
Quarterly reports (10-Q)
- Jun 3, 202610-QQuarterly report Period ended May 10, 2026
- Mar 11, 202610-QQuarterly report Period ended Feb 15, 2026
- Dec 17, 202510-QQuarterly report Period ended Nov 23, 2025
Proxy statements (DEF 14A)
- Dec 4, 2025DEF 14AProxy statement
Current reports (8-K)
- Oct 14, 20268-KCurrent report: Other events
- Sep 24, 20268-KCurrent report
- Jul 8, 20268-KCurrent report Event date Jul 7, 2026
- May 28, 20268-KCurrent report
- Mar 5, 20268-KCurrent report
- Jan 21, 20268-KCurrent report Event date Jan 15, 2026
- Dec 11, 20258-KCurrent report
- Oct 20, 20258-KCurrent report Event date Oct 14, 2025
Insider transactions (Form 4)
- Oct 14, 2026Form 4Insider transaction
- Sep 30, 2026Form 4Insider transaction
- Sep 30, 2026Form 4Insider transaction
Source: SEC EDGAR. Open COST on EDGAR →