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In re: COSTCO WHOLESALE CORP /NEW · CIK 0000909832

When will Costco Wholesale Corp. file its next 10-Q?

COST · Nasdaq
Snapshot

Costco Wholesale Corp. is expected to file its next quarterly report (Form 10-Q), for the period ending about Nov. 29, 2026, between Dec. 23, 2026 and Dec. 24, 2026, based on its last 8 10-Q filings. The SEC deadline for a large accelerated filer is Jan. 8, 2027.

How the next-report window is calculated

Costco Wholesale Corp.'s most recent periodic report on file is a Form 10-K for the period ended Aug. 30, 2026, filed Oct. 7, 2026. Its fiscal year ends around Aug. 30, so the next period should close about Nov. 29, 2026, and that report is a Form 10-Q.

SEC rules give a large accelerated filer 40 days after period end to file a 10-Q, which lands on Jan. 8, 2027 after moving off weekends and federal holidays. Over its last 8 10-Qs, Costco Wholesale Corp. filed between 24 and 25 days after period end (median 25 days), which gives the expected window above. Period ends are estimated from the company's own calendar and may shift by a few days in 52/53-week fiscal years.

Costco Wholesale Corp.: days from period end to 10-Q/10-K filing 10-Q for period ended 2024-11-24: filed 25 days later; 10-Q for period ended 2025-02-16: filed 25 days later; 10-Q for period ended 2025-05-11: filed 25 days later; 10-K for period ended 2025-08-31: filed 38 days later; 10-Q for period ended 2025-11-23: filed 24 days later; 10-Q for period ended 2026-02-15: filed 24 days later; 10-Q for period ended 2026-05-10: filed 24 days later; 10-K for period ended 2026-08-30: filed 38 days later. 10-Q due: 40d 10-K due: 60d 10-Q · Nov. 24 24 25d 10-Q · Feb. 16 25 25d 10-Q · May 11 25 25d 10-K · Aug. 31 25 38d 10-Q · Nov. 23 25 24d 10-Q · Feb. 15 26 24d 10-Q · May 10 26 24d 10-K · Aug. 30 26 38d days from period end to filing date →

Recent filings by Costco Wholesale Corp.

Most recent 25 filings excluding insider Forms 3/4/5/144 · SEC EDGAR, retrieved Oct. 16, 2026
FiledFormWhat it isDocument
8-K Other events the company chose to report Open 8-K filed 2026-10-14 · Index 0000909832-26-000096
10-K Annual report with audited financial statements for the period ended Aug. 30, 2026 Open 10-K filed 2026-10-07 · Index 0000909832-26-000093
8-K Released earnings or financial results Open 8-K filed 2026-09-24 · Index 0000909832-26-000084
8-K Other events the company chose to report Open 8-K filed 2026-07-08 · Index 0000909832-26-000060
11-K Annual report of an employee stock purchase or savings plan Open 11-K filed 2026-06-29 · Index 0000909832-26-000056
S-3ASR Automatic shelf registration (well-known seasoned issuer) Open S-3ASR filed 2026-06-03 · Index 0001193125-26-255730
10-Q Quarterly report with unaudited financial statements for the period ended May 10, 2026 Open 10-Q filed 2026-06-03 · Index 0000909832-26-000051
SD Specialized disclosure (conflict minerals / resource payments) Open SD filed 2026-05-29 · Index 0000909832-26-000048
8-K Released earnings or financial results Open 8-K filed 2026-05-28 · Index 0000909832-26-000046
13G Ownership above 5% by a passive or institutional investor Open SCHEDULE 13G filed 2026-04-29 · Index 0002100119-26-000302
8-K Other events the company chose to report Open 8-K filed 2026-04-15 · Index 0000909832-26-000041
13G/A Amendment to a passive-ownership (13G) report Open SCHEDULE 13G/A filed 2026-03-26 · Index 0000102909-26-001083
10-Q Quarterly report with unaudited financial statements for the period ended Feb. 15, 2026 Open 10-Q filed 2026-03-11 · Index 0000909832-26-000029
8-K Released earnings or financial results Open 8-K filed 2026-03-05 · Index 0000909832-26-000025
8-K Reported shareholder vote results; other events the company chose to report Open 8-K filed 2026-01-21 · Index 0000909832-26-000016
10-Q Quarterly report with unaudited financial statements for the period ended Nov. 23, 2025 Open 10-Q filed 2025-12-17 · Index 0000909832-25-000169
8-K Released earnings or financial results Open 8-K filed 2025-12-11 · Index 0000909832-25-000164
DEFA14A Additional proxy soliciting materials Open DEFA14A filed 2025-12-04 · Index 0000909832-25-000160
DEF 14A Definitive proxy statement for a shareholder meeting Open DEF 14A filed 2025-12-04 · Index 0000909832-25-000159
ARS Annual report delivered to shareholders Open ARS filed 2025-12-04 · Index 0000909832-25-000157
8-K Executive or board change, or executive pay arrangement Open 8-K filed 2025-10-20 · Index 0000909832-25-000107
8-K Other events the company chose to report Open 8-K filed 2025-10-15 · Index 0000909832-25-000105
10-K Annual report with audited financial statements for the period ended Aug. 31, 2025 Open 10-K filed 2025-10-08 · Index 0000909832-25-000101
8-K Released earnings or financial results Open 8-K filed 2025-09-25 · Index 0000909832-25-000093
10-Q Quarterly report with unaudited financial statements for the period ended May 11, 2025 Open 10-Q filed 2025-06-05 · Index 0000909832-25-000033

What Costco Wholesale Corp.'s 8-Ks were about in the past year

Costco Wholesale Corp. filed 9 Form 8-K current reports between Oct. 17, 2025 and Oct. 16, 2026. Each report lists the item numbers it covers; the counts below show how often each item appeared.

ItemMeaningTimes
9.01Financial Statements and Exhibits8
8.01Other Events4
2.02Results of Operations and Financial Condition4
5.07Submission of Matters to a Vote of Security Holders1
5.02Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers1

See what each 8-K item means.