EntityWire/Massachusetts business entity search →/KOPIN CORPORATION
Employer with a benefit plan
KOPIN CORPORATION
KOPIN CORPORATION's Employer Identification Number (EIN) is 04-2833935.
At a glance
- EIN
- 04-2833935 · 042833935
- Legal name
- KOPIN CORPORATION
- Address on file
- 125 NORTH DRIVE, WESTBOROUGH, MA 01581
- Records show
- SEC filer; employer with a benefit plan; state registration
- Latest record
- 2026-09-05
State registration
Texas Comptroller active franchise taxpayers file · records as of 2026-09-05
- Texas registration
- Active · Foreign profit corporation
- Source: Texas Comptroller · as of 2026-09-05
- Texas document number
- 10428339351
- Source: Texas Comptroller · as of 2026-09-05
SEC records
SEC EDGAR company filings · records as of 2026-08-12
- SEC CIK
- 0000771266
- Source: SEC · as of 2026-08-12
- Industry (SIC)
- Semiconductors & Related Devices (3674)
- Source: SEC · as of 2026-08-12
- State of incorporation
- DE
- Source: SEC · as of 2026-08-12
- Ticker
- KOPN
- Source: SEC · as of 2026-08-12
- Latest SEC filing
- S-8 2026-08-12
- Source: SEC · as of 2026-08-12
Benefit plans
DOL Form 5500 filings (EFAST2) · records as of 2026-02-02
- Benefit plan 502, 2024 filing
- KOPIN CORPORATION EMPLOYEE BENEFITS PLAN
- Source: DOL 5500 · as of 2026-02-02
- Participants (start of year)
- 141
- Source: DOL 5500 · as of 2026-02-02
- Plan features
- Health (other than dental or vision); Life insurance; Dental; Vision; Temporary disability; Long-term disability
- Source: DOL 5500 · as of 2026-02-02
- Plan type
- Single-employer plan
- Source: DOL 5500 · as of 2026-02-02
- Business code (NAICS)
- 334110
- Source: DOL 5500 · as of 2026-02-02
- Benefit plan 1, 2024 filing
- KOPIN CORPORATION 401K PLAN
- Source: DOL 5500 · as of 2025-09-26
- Participants (start of year)
- 200
- Source: DOL 5500 · as of 2025-09-26
What this record is
Public filings that carry this EIN (DOL Form 5500 filings (EFAST2), SEC EDGAR company filings and Texas Comptroller active franchise taxpayers file), shown as filed. Nothing is scraped from the IRS, and a public-record match is not IRS TIN validation.
What it is not
Registry status, formation date, and registered agent come from the Secretary of the Commonwealth, Corporations Division; see the Massachusetts business entity search.
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.
Other Massachusetts businesses on file
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- BIODELIVERY SCIENCES INTERNATIONAL, INC.EIN 35-2089858
- KYMERA THERAPEUTICS, INCEIN 81-2992166
- IBASIS, INC.EIN 04-3332534
- COGENT BIOSCIENCES, INC.EIN 46-5308248
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