Amphastar Pharmaceuticals, Inc.
Manufacturing · Primarily CA · PERM filings 2019–2024
Overview
Amphastar Pharmaceuticals, Inc. is a Manufacturing employer that has filed 12 PERM green-card applications between FY2019 and FY2024. That places it #6,656 among all U.S. PERM sponsors in our dataset. 3 were certified (25% approval rate), taking about 236 days on average. The most-sponsored role is Mechanical Engineer, with most worksites in CA, and the median sponsored wage is $74,173.
12
PERM filings
25%
approval
4
denied
$74,173
median wage
236d
avg processing
Worker background
Across 10 filings with beneficiary data, the most common country of origin is CHINA (80%). (From legacy PERM form data, FY2020–FY2024.)
Top countries of origin
- China8
- United States Of America1
- Canada1
Prior visa status
- H-1B9
- TN1
Education
- Master's10
PERM filings by year
Occupations & job titles
The occupations Amphastar Pharmaceuticals, Inc. most often sponsors, with average wages.
| Occupation | Filings | Avg wage |
|---|---|---|
| Mechanical Engineer | 4 | $77,792 |
| Market Research Analysts and Marketing Specialists | 2 | $63,461 |
| Clinical Data Managers | 1 | $91,478 |
| Statisticians | 1 | $63,544 |
| Accountants | 1 | $60,653 |
| Chemical Engineers | 1 | $154,153 |
| Mechanical Engineers | 1 | $81,536 |
| Financial Managers | 1 | $126,412 |
Common job titles
Worksite states
Wage range
$63,544
25th
$74,173
median
$81,536
75th
$126,412
90th
Law firms used
- Yang and Chen LLP6
- Law Offices of Deacon Zhang, P.C.2
- Law Offices of Domino Wang1
- Quarles & Brady LLP1
- Law Offices of Jennifer Lin Lieu1
- Alex Chen Law Group A P.C.1
Recent filings
| Case | Job title | Status | Worksite | Decision |
|---|---|---|---|---|
| G-100-24115-918978 | Market Research Analyst | Certified | Rancho Cucamonga, CA | Jul 24, 2025 |
| G-100-23235-289949 | Data Analyst Specialist II | Certified - Expired | Rancho Cucamonga, CA | Nov 19, 2024 |
| A-22089-33318 | Senior Supervisor of Worldwide Cost Accounting | Denied | Rancho Cucamonga, CA | Jun 30, 2023 |
| A-22065-19732 | MECHANICAL ENGINEER | Denied | Rancho Cucamonga, CA | Mar 28, 2023 |
| A-21236-35576 | Assistant Supervisor of Executive Office | Denied | Rancho Cucamonga, CA | Mar 24, 2022 |
| A-20244-94227 | Mechanical Engineer | Denied | Rancho Cucamonga, CA | Apr 9, 2021 |
| A-20216-84108 | Mechanical Engineer | Certified-Expired | Rancho Cucamonga, CA | Mar 17, 2021 |
| A-20234-91012 | Mechanical Engineer | Withdrawn | Rancho Cucamonga, CA | Aug 31, 2020 |
| A-20168-66374 | Mechanical Engineer | Withdrawn | Rancho Cucamonga, CA | Aug 3, 2020 |
| A-19206-35565 | Data and Document Analyst | Certified | Rancho Cucamonga, CA | Jun 5, 2020 |
| A-19362-00510 | Manager of CMCA | Certified | Rancho Cucamonga, CA | May 8, 2020 |
| A-19206-35717 | General Ledger Analyst | Certified-Expired | Rancho Cucamonga, CA | Oct 28, 2019 |
Source: U.S. DOL OFLC PERM disclosure data. Wages are annual-equivalent; outliers excluded.