EntityWire

EntityWire / EIN 91-1223280

Employer with a benefit plan

COSTCO WHOLESALE CORPORATION AND SUBSIDIARIES

EIN 91-1223280. What DOL Form 5500 filings (EFAST2) and SEC EDGAR company filings say about this entity, with the source and date on every fact. Latest record 2026-07-14.

Employer with a benefit plan ยท SEC filer

COSTCO WHOLESALE CORPORATION AND SUBSIDIARIES

Also filed as COSTCO CO INC; COSTCO COMPANIES INC; COSTCO WHOLESALE CORPORATION; COSTCO WHOLESALE CORPORATION AND SUBISIDIARIES; COSTCO WHOLESALE CORP /NEW

730 LAKE DRIVE, ISSAQUAH, WA 98027

EIN

91-1223280

SEC CIK

0000909832

SEC · 2026-07-14

Industry (SIC)

Retail-Variety Stores (5331)

SEC · 2026-07-14

State of incorporation

WA

SEC · 2026-07-14

Ticker

COST

SEC · 2026-07-14

Latest SEC filing

4 2026-07-14

SEC · 2026-07-14

Benefit plan 512, 2024 filing

COSTCO WHOLESALE CORPORATION VISION AND PRESCRIPTION DRUG PROGRAM

DOL · 2026-06-15

Participants (start of year)

210,713

DOL · 2026-06-15

Plan features

code 4E4Q

DOL · 2026-06-15

Plan type

Single-employer plan

DOL · 2026-06-15

Business code (NAICS)

452300

DOL · 2026-06-15

Benefit plan 501, 2024 filing

COSTCO WHOLESALE CORPORATION EMPLOYEE BENEFITS PROGRAM II

DOL · 2026-06-15

Participants (start of year)

217,327

DOL · 2026-06-15

Plan features

code 4A4B4D4F4H4L4Q

DOL · 2026-06-15

Plan type

Single-employer plan

DOL · 2026-06-15

From DOL Form 5500 filings (EFAST2) · SEC EDGAR company filings. Latest record 2026-07-14.

What this record is

Public federal filings that carry this EIN, shown as filed. Nothing here is scraped from the IRS and nothing is inferred.

What it is not

Registry status, formation date, and registered agent come from the state where the entity is registered, not from these federal filings.

If something is wrong

A name, address, or classification here is what the source published. To correct the source, file with it; to have this page removed, see corrections and removal.

Look up another business

Free. Federal filings and state registries, stamped with their source and date.