COST10-Kfiled 2026-10-07

Costco Wholesale's 10-K: fiscal year ended 2026-08-30

Annual report, fiscal year ended 2026-08-30.

Read the filing on sec.gov ↗All documents and exhibits ↗Accession 0000909832-26-000093

What changed

Each line against the same period a year earlier. The math is under each line; the filing is one click away.

Latest fiscal year vs the year before

10-K filed 2026-10-07 ↗

Year ended	2025-08-31	2026-08-30	Change
Revenue(303,154 − 275,235) ÷ \|275,235\| × 100 = +10.1% ($ millions)	$275.2B	$303.2B	+10.1%
Operating income(11,685 − 10,383) ÷ \|10,383\| × 100 = +12.5% ($ millions)	$10.4B	$11.7B	+12.5%
Net income(9,226 − 8,099) ÷ \|8,099\| × 100 = +13.9% ($ millions)	$8.1B	$9.2B	+13.9%
Diluted earnings per share(20.76 − 18.21) ÷ \|18.21\| × 100 = +14.0% ($ a share)	$18.21	$20.76	+14.0%
Diluted share count (weighted)(444 − 445) ÷ \|445\| × 100 = −0.1% (millions of shares)	444.8M	444.4M	−0.1%
Operating cash flow(15,817 − 13,335) ÷ \|13,335\| × 100 = +18.6% ($ millions)	$13.3B	$15.8B	+18.6%

Both columns as reported in the latest filing, so a restated prior period shows its restated figure. n/m: not meaningful (the prior figure is zero or of the other sign). Concepts: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax, us-gaap:OperatingIncomeLoss, us-gaap:NetIncomeLoss, us-gaap:EarningsPerShareDiluted, us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding, us-gaap:NetCashProvidedByUsedInOperatingActivities.

COST’s other recent filings

Filed	Form	What it is
2026-10-16	8-K	Current report: Director or officer departure or appointment sec.gov ↗
2026-10-14	8-K	Current report: Other events sec.gov ↗
2026-09-24	8-K	Current report: Results of operations
2026-07-08	8-K	Current report: Other events sec.gov ↗
2026-06-03	10-Q	Quarterly report, period ended 2026-05-10
2026-05-28	8-K	Current report: Results of operations
2026-04-15	8-K	Current report: Other events sec.gov ↗

Not financial advice. For education only.