How many insider trades does FilingIQ track for COST?

FilingIQ tracks 1,317 Form 4 insider transactions for COST (COSTCO WHOLESALE CORP /NEW), covering filings from Dec 17, 2014 onwards. 4 of those were filed in 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 266 (20%) 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 parses the raw XML, normalises insider identity across reporting variations, and scores each trade 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.

COST insider trading

NasdaqGS Consumer Defensive

COSTCO WHOLESALE CORP /NEW — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

1,317

Last 90 days

Buys / sells

0% / 20%

Market cap

$447.43B

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 has scored 1,317 insider transactions for COST since Dec 17, 2014. The most recent filing in our index is dated Apr 1, 2026.

Across the full history, 4 open-market purchases and 266 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 59.9/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live COST trades on FilingIQ Raw filings on SEC EDGAR

Other Consumer Defensive tickers with recent insider activity

ACI 320

Albertsons Companies, Inc.

HSY 272

HERSHEY CO

FDP 191

FRESH DEL MONTE PRODUCE INC

STKL 146

SunOpta Inc.

COCO 140

Vita Coco Company, Inc.

CHD 133

CHURCH & DWIGHT CO INC /DE/

13F funds holding COST

VANGUARD GROUP INC

$25.38B · 0.6% of AUM

Neuberger Berman Group LLC

$885.89M · 0.7% of AUM

Corient Private Wealth LLC

$822.10M · 1.1% of AUM

Robeco Institutional Asset Management B.V.

$414.11M · 1.0% of AUM

HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND

$331.40M · 0.9% of AUM

Politicians who have traded COST

Sessions, Pete

U.S. Rep. , TX · 432 trades

McKinley, David B.

U.S. Rep. , WV · 420 trades

Moran,, Jerry

U.S. Sen. , KS · 184 trades

Whitfield, Ed

U.S. Rep. , KY · 107 trades

Perlmutter, Ed

U.S. Rep. , CO · 91 trades

Frequently asked

How many insider trades does FilingIQ track for COST?: FilingIQ tracks 1,317 Form 4 insider transactions for COST (COSTCO WHOLESALE CORP /NEW), covering filings from Dec 17, 2014 onwards. 4 of those were filed in 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 266 (20%) 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 parses the raw XML, normalises insider identity across reporting variations, and scores each trade 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.