Costco Wholesale COST SEC Filings

NASDAQ COST
$998.31 +3.70 (+0.37%)
At close: Oct 21, 2026 · 4:00 PM EDT
EDGAR Disclosures

SEC Filings

Source SEC EDGAR

Every SEC filing Costco Wholesale Corp /New (COST) has made, as reported on EDGAR — annual and quarterly reports, current reports, insider transactions and ownership disclosures. Filter by form group, form type or period, and open any filing or its index directly.

Form Type
# Form Type Form Group Accession Date Filing Index
18-KCurrent Report0000909832-26-000100Oct 16, 2026 12:52 AM
28-KCurrent Report0000909832-26-000096Oct 14, 2026 12:16 AM
310-KQuarterly & Annual Report0000909832-26-000093Oct 7, 2026 5:13 AM
44Insider Transaction0000909832-26-000090Sep 30, 2026 9:52 PM
54Insider Transaction0000909832-26-000088Sep 30, 2026 9:48 PM
63Insider Transaction0000909832-26-000086Sep 30, 2026 9:46 PM
7144Insider Transaction0001959173-26-007137Sep 29, 2026 6:02 PM
8144Insider Transaction0001959173-26-007136Sep 29, 2026 5:32 PM
98-KCurrent Report0000909832-26-000084Sep 24, 2026 8:17 PM
104Insider Transaction0000909832-26-000080Sep 14, 2026 9:30 PM
114Insider Transaction0000909832-26-000078Sep 14, 2026 9:28 PM
124Insider Transaction0000909832-26-000076Sep 14, 2026 9:25 PM
134Insider Transaction0000909832-26-000074Sep 14, 2026 9:23 PM
144Insider Transaction0000909832-26-000072Sep 14, 2026 9:22 PM
154Insider Transaction0000909832-26-000070Sep 14, 2026 9:20 PM
164Insider Transaction0000909832-26-000068Sep 14, 2026 9:17 PM
173Insider Transaction0000909832-26-000066Sep 10, 2026 9:48 PM
184Insider Transaction0000909832-26-000062Jul 14, 2026 8:14 PM
198-KCurrent Report0000909832-26-000060Jul 8, 2026 8:18 PM
2011-KOthers0000909832-26-000056Jun 29, 2026 10:16 PM
214Insider Transaction0000909832-26-000053Jun 25, 2026 8:12 PM
22144Insider Transaction0001959173-26-004831Jun 23, 2026 8:08 PM
23144Insider Transaction0001959173-26-004380Jun 5, 2026 4:04 PM
24S-3ASROthers0001193125-26-255730Jun 3, 2026 9:05 PM
2510-QQuarterly & Annual Report0000909832-26-000051Jun 3, 2026 8:43 PM
26SDOthers0000909832-26-000048May 29, 2026 10:45 PM
278-KCurrent Report0000909832-26-000046May 28, 2026 8:17 PM
283Insider Transaction0000909832-26-000043May 15, 2026 10:31 PM
29SCHEDULE 13GBeneficial Ownership Report0002100119-26-000302Apr 29, 2026 9:40 PM
30SCHEDULE 13GBeneficial Ownership Report0002100119-26-000302Apr 29, 2026 9:40 PM
31SCHEDULE 13GBeneficial Ownership Report0002100119-26-000302Apr 29, 2026 9:40 PM
328-KCurrent Report0000909832-26-000041Apr 15, 2026 8:16 PM
334Insider Transaction0000909832-26-000039Apr 1, 2026 10:13 PM
344Insider Transaction0000909832-26-000039Apr 1, 2026 10:13 PM
354Insider Transaction0000909832-26-000039Apr 1, 2026 10:13 PM
36144Insider Transaction0001628280-26-022836Apr 1, 2026 8:42 PM
37144Insider Transaction0001628280-26-022836Apr 1, 2026 8:42 PM
38144Insider Transaction0001628280-26-022836Apr 1, 2026 8:42 PM
39SCHEDULE 13GBeneficial Ownership Report0000102909-26-001083Mar 26, 2026 9:42 PM
404Insider Transaction0000909832-26-000035Mar 13, 2026 8:12 PM
414Insider Transaction0000909832-26-000035Mar 13, 2026 8:12 PM
424Insider Transaction0000909832-26-000035Mar 13, 2026 8:12 PM
434Insider Transaction0000909832-26-000033Mar 13, 2026 8:10 PM
444Insider Transaction0000909832-26-000033Mar 13, 2026 8:10 PM
454Insider Transaction0000909832-26-000033Mar 13, 2026 8:10 PM
463Insider Transaction0000909832-26-000031Mar 11, 2026 9:06 PM
4710-QQuarterly & Annual Report0000909832-26-000029Mar 11, 2026 8:37 PM
484Insider Transaction0000909832-26-000028Mar 11, 2026 8:08 PM
494Insider Transaction0000909832-26-000028Mar 11, 2026 8:08 PM
504Insider Transaction0000909832-26-000028Mar 11, 2026 8:08 PM
...

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