COST insider trading
NasdaqGS Consumer DefensiveCOSTCO WHOLESALE CORP /NEW: insider trade history from SEC Form 4 filings.
About COSTCO WHOLESALE CORP /NEW
Costco Wholesale Corporation, together with its subsidiaries, engages in the operation of membership warehouses in the United States, Puerto Rico, Canada, Mexico, Japan, the United Kingdom, Korea, Australia, Taiwan, China, Spain, France, Iceland, New Zealand, and Sweden. It offers merchandise, including sundries, dry groceries, candies, coolers, freezers, deli, liquor, and tobacco; non-food merchandise comprising appliances, small electronics, health and beauty aids, hardware, lawn and garden, sporting goods, tires, toys and seasonal, automotive, stamps, tickets, apparel, furniture, domestics, housewares, special order kiosks, and jewelry; and fresh food, such as meat, produce, service deli, and bakery products. The company is also involved in warehouse ancillary operations, which include gasoline, pharmacies, optical, food courts, hearing-aid centers, and tire installation centers. In addition, it engages in e-commerce, business centers, travel, and other businesses. The company was formerly known as Costco Companies, Inc. and changed its name to Costco Wholesale Corporation in August 1999. Costco Wholesale Corporation was founded in 1976 and is based in Issaquah, Washington.
Company website: www.costco.com
COST insider activity at a glance
FilingIQ tracks 1,413 insider transactions for COST in filings since Jan 12, 2015. The most recent transaction is dated Sep 29, 2026.
Across the full history, 4 open-market purchases
and 296 open-market sales
were filed under transaction codes P and S respectively. Compensatory share awards
(code A) and option exercises (code M) are tracked separately and not counted here.
The average FilingIQ composite score on COST insider trades is 60.1/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.
Latest COST Form 4 filings
Most recent disclosures. Sign up to filter by score, transaction code, or insider role.
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Frequently asked
- How many insider trades does FilingIQ track for COST?
- FilingIQ tracks 1,413 Form 4 insider transactions for COST (COSTCO WHOLESALE CORP /NEW), covering filings from Jan 12, 2015 onwards. 17 of those are dated within the last 90 days.
- Are COST insiders net buyers or net sellers?
- Across the full Form 4 history for COST, 4 transactions (0%) were open-market purchases and 296 (21%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
- Where does COST insider data come from?
- Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ normalises insider identity across reporting variations and scores discretionary open-market purchases and sales on its multi-factor composite model.
- What sector is COST in?
- COSTCO WHOLESALE CORP /NEW (COST) is classified in the Consumer Defensive sector, specifically Discount Stores, with a current market capitalisation of $447.43B.
Methodology & sources
Every COST insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.