EntityWire/California business entity search →/AMPHASTAR PHARMACEUTICALS, INC.
Employer with a benefit plan
AMPHASTAR PHARMACEUTICALS, INC.
The Employer Identification Number (EIN) for AMPHASTAR PHARMACEUTICALS, INC. is 33-0702205.
At a glance
- EIN
- 33-0702205 · 330702205
- Legal name
- AMPHASTAR PHARMACEUTICALS, INC.
- Address on file
- 11570 SIXTH STREET, RANCHO CUCAMONGA, CA 91730
- 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
- 0805705196
- Source: Texas Comptroller · as of 2026-09-05
SEC records
SEC EDGAR company filings · records as of 2026-09-03
- SEC CIK
- 0001297184
- Source: SEC · as of 2026-09-03
- Industry (SIC)
- Pharmaceutical Preparations (2834)
- Source: SEC · as of 2026-09-03
- Ticker
- AMPH
- Source: SEC · as of 2026-09-03
- Latest SEC filing
- 4 2026-09-03
- Source: SEC · as of 2026-09-03
Benefit plans
DOL Form 5500 filings (EFAST2) · records as of 2025-08-13
- Benefit plan 1, 2024 filing
- AMPHASTAR PHARMACEUTICALS, INC. 401(K) PROFIT SHARING PLAN
- Source: DOL 5500 · as of 2025-08-13
- Participants (start of year)
- 1,570
- Source: DOL 5500 · as of 2025-08-13
- Plan features
- Profit-sharing; ERISA 404(c) plan; Participant-directed; 401(k) feature; 401(m) matching; Automatic enrollment
- Source: DOL 5500 · as of 2025-08-13
- Plan type
- Single-employer plan
- Source: DOL 5500 · as of 2025-08-13
- Business code (NAICS)
- 325410
- Source: DOL 5500 · as of 2025-08-13
- Benefit plan 501, 2024 filing
- AMPHASTAR PHARMACEUTICALS, INC. CAFETERIA PLAN
- Source: DOL 5500 · as of 2025-06-03
- Participants (start of year)
- 0
- Source: DOL 5500 · as of 2025-06-03
- Plan features
- Health (other than dental or vision); Life insurance; Dental; Vision
- Source: DOL 5500 · as of 2025-06-03
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 California Secretary of State, Business Programs Division (Business Entities); see the California 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.
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