EntityWire

EntityWire / EIN 39-1168275

Employer with a benefit plan

KOSS CORPORATION

EIN 39-1168275. What DOL Form 5500 filings (EFAST2), DOL Form 5500-SF filings (EFAST2) and SEC EDGAR company filings say about this entity, with the source and date on every fact. Latest record 2026-08-28.

Employer with a benefit plan ยท SEC filer

KOSS CORPORATION

4129 NORTH PORT WASHINGTON ROAD, MILWAUKEE, WI 532121052

EIN

39-1168275

SEC CIK

0000056701

SEC · 2026-08-28

Industry (SIC)

Household Audio & Video Equipment (3651)

SEC · 2026-08-28

State of incorporation

DE

SEC · 2026-08-28

Ticker

KOSS

SEC · 2026-08-28

Latest SEC filing

ARS 2026-08-28

SEC · 2026-08-28

Benefit plan 1, 2024 filing

KOSS CORPORATION EMPLOYEE STOCK OWNERSHIP PLAN

DOL · 2026-01-05

Participants (start of year)

35

DOL · 2026-01-05

Plan features

code 2I2O3I

DOL · 2026-01-05

Plan type

Single-employer plan

DOL · 2026-01-05

Business code (NAICS)

334310

DOL · 2026-01-05

Benefit plan 2, 2024 filing

KOSS CORPORATION RETIREMENT SAVINGS 401(K) PLAN

DOL · 2025-11-24

Participants (start of year)

37

DOL · 2025-11-24

Plan assets (end of year)

$7,853,103

DOL · 2025-11-24

Plan features

code 2E2F2G2J2K2R2S2T3D

DOL · 2025-11-24

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.