401(k) · DOL Form 5500 · 2022

Amphastar Pharmaceuticals, Inc. 401(k) Plan

Data updated 2026-08-25

$71M
Total assets Below avg plan size
1,240
Participants Near avg headcount
91st
Percentile by assets National rank
$57,585
Avg per participant Low balance/head
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Official DOL plan name: Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan · Sponsored by Amphastar Pharmaceuticals, Inc. · California · Manufacturing

$71M in assets, 1,240 participants

Amphastar Pharmaceuticals, Inc.'s Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan reported $71M in total assets and 1,240 participants in its 2022 DOL Form 5500 filing, ranking in the 91st percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • #17,730 in Manufacturing (20,602 peers)

Where Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan sits by assets

Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan sits in the top 10% of all filed plans by assets, $71M for 1,240 participants (~$57,585/participant), down 13.8% in 2022.

#17,730
in Manufacturing (20,602 peers)
-13.8%
assets change YoY
0.7×
vs typical plan assets (national mean)

The plan reported a net loss of $11M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan's outsized position by total assets

Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$71,405,819 Top 9% higher than 91% of 139,123 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2022

Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan's large-plan peer group by participant headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan lands in the large band (1,240 participants).

Form 5500 schedule snapshot

Filing strip 330702205 · Amphastar Pharmaceuticals, Inc. PY 2022 · 401(k)

Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan · $71M · 1,240 · 91st

  • PART $71M
  • TYPE 1,240
  • NET 91st
  • BOOK 401(k)
  • VS-ST near The Dixie Group, Inc. 401(k) Retirement Savings Plan
  • BOY ind #17730

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Manufacturing retirement plans → · Plans in California →

Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan in the asset neighbourhood

Adc Physicians, P.a. 401(k) Profit Sharing PlanAdc Physicians, P.a. 401(k) …$71MAdc Physicians, P.a. 401(k) Profit Sharing PlanAdc Physicians, P.a. 401(k) …$71MAmphastar Pharmaceuticals, Inc. 401(k) Profit Sharing PlanAmphastar Pharmaceuticals, I…$71MThe Dixie Group, Inc. 401(k) Retirement Savings PlanThe Dixie Group, Inc. 401(k)…$71MCardiology Associates of Mobile, Inc. 401(k) Profit Sharing PlanCardiology Associates of Mob…$71M
End-of-year total assets ($M) among Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Scale-class filing particulars (2022)

Total Assets (Beginning of Year)$83M
Net Assets (End of Year)$71M
Net Income-$11M
Employer EIN330702205
Plan Effective Date1998-08-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Amphastar Pharmaceuticals, Inc.)

Sponsor-wide plan assets over time

All Amphastar Pharmaceuticals, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$112M 56.57434165134357% vs 2022
2024 filing year
$60M$80M$100M$120M 202220232024 $71.4M $112M ▲ +56.6%
Year Plans Participants Total Assets
2022 1 1,240 $71M
2023 1 1,255 $93M
2024 1 1,341 $112M

Nearby 401(k) Plans in California

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan vs. nearby 401(k) plans in California, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000200000250000 -200204060 Total assets ($B) Participants Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan, Total assets ($B): 0.071405819 · Participants: 1240Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing PlanWells Fargo & Company 401(k) Plan, Total assets ($B): 45.765616608 · Participants: 205865Wells Fargo & Company 401(k) PlanGoogle LLC 401(k) Savings Plan, Total assets ($B): 28.89820221 · Participants: 102963Google LLC 401(k) Savings PlanOracle Corporation 401(k) Savings and Investment Plan, Total assets ($B): 21.851716605 · Participants: 46320Oracle Corporation 401(k) Savings and Investment PlanChevron Employee Savings Investment Plan, Total assets ($B): 18.60989746 · Participants: 19946Chevron Employee Savings Investment PlanIntel 401(k) Savings Plan, Total assets ($B): 18.361585903 · Participants: 54672Intel 401(k) Savings Plan
Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan vs. nearby 401(k) plans in California, assets vs. participants
Compare Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan side-by-side with 3 peers →

Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan's out-of-state 401(k) peers by assets and headcount

Outside California, the nearest 401(k) by assets is The Dixie Group, Inc. 401(k) Retirement Savings Plan in GA ($71M); by covered participants it is Next Step Healthcare 401(k) Plan in MA (1,240 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (1,240 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan assets move in 2022? ▼
Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan pulled back noticeably - down 13.8% during 2022, from $83M to $71M. Reported net income was -$11M.
How have Amphastar Pharmaceuticals, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Amphastar Pharmaceuticals, Inc.'s sponsor-wide assets grew 56.6%, from $71M to $112M.
Where does Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan rank by assets among Form 5500 filers? ▼
Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan ranks in the 91st percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan? ▼
Among 401(k) plans in other states, the closest by assets is The Dixie Group, Inc. 401(k) Retirement Savings Plan in GA ($71M, 946 participants).
Which 401(k) plans cover a similar participant headcount to Amphastar Pharmaceuticals, Inc. 401(k) Profit Sharing Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Next Step Healthcare 401(k) Plan in MA (1,240 participants, $9M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 330702205.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.