401(k) · DOL Form 5500 · 2022

Amkor Technology, Inc. 401(k) Plan

Data updated 2026-08-25

$174M
Total assets Near avg plan size
375
Participants Below avg headcount
95th
Percentile by assets National rank
$465,192
Avg per participant High balance/head
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Official DOL plan name: Amkor Technology, Inc. 401(k) Plan · Sponsored by Amkor Technology, Inc. · Arizona · Manufacturing

$174M in assets, 375 participants

Amkor Technology, Inc.'s Amkor Technology, Inc. 401(k) Plan reported $174M in total assets and 375 participants in its 2022 DOL Form 5500 filing, ranking in the 95th 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.

  • #19,037 in Manufacturing (20,602 peers)

Where Amkor Technology, Inc. 401(k) Plan sits by assets

Amkor Technology, Inc. 401(k) Plan sits in the top 5% of all filed plans by assets, $174M for 375 participants (~$465,192/participant), down 14.5% in 2022.

#19,037
in Manufacturing (20,602 peers)
-14.5%
assets change YoY
1.8×
vs typical plan assets (national mean)

The plan reported a net loss of $30M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Amkor Technology, Inc. 401(k) Plan's outsized position by total assets

Amkor Technology, Inc. 401(k) Plan vs every filed plan by assets

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

$174,446,934 Top 5% higher than 95% 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

Amkor Technology, Inc. 401(k) Plan among mid-size filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Amkor Technology, Inc. 401(k) Plan sits mid-pack in the medium band (375 participants).

DOL schedule card

Filing strip 231722724 · Amkor Technology, Inc. PY 2022 · 401(k)

Amkor Technology, Inc. 401(k) Plan · $174M · 375 · 95th

  • SCH $174M
  • EBSA 375
  • PART 95th
  • TYPE 401(k)
  • NET near Satellite Healthcare, Inc. 403(b) Retirement Plan
  • BOOK ind #19037

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 Arizona →

Amkor Technology, Inc. 401(k) Plan in the asset neighbourhood

Hitt Contracting Inc. 401(k) Savings & Profit Sharing PlanHitt Contracting Inc. 401(k)…$175MCetera Financial Group, Inc. 401(k) Savings PlanCetera Financial Group, Inc.…$175MAmkor Technology, Inc. 401(k) PlanAmkor Technology, Inc. 401(k…$174MSatellite Healthcare, Inc. 403(b) Retirement PlanSatellite Healthcare, Inc. 4…$174MConvatec, Inc. Savings and Investment PlanConvatec, Inc. Savings and I…$174M
End-of-year total assets ($M) among Amkor Technology, Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Scale-class filing particulars (2022)

Total Assets (Beginning of Year)$204M
Net Assets (End of Year)$174M
Net Income-$30M
Employer EIN231722724
Plan Effective Date1986-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Amkor Technology, Inc.)

Sponsor-wide plan assets over time

All Amkor Technology, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$223M 27.760413375909486% vs 2022
2024 filing year
$160M$180M$200M$220M$240M 202220232024 $174M $223M ▲ +27.8%
Year Plans Participants Total Assets
2022 1 375 $174M
2023 1 383 $204M
2024 1 373 $223M

Nearby 401(k) Plans in Arizona

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

Amkor Technology, Inc. 401(k) Plan vs. nearby 401(k) plans in Arizona, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 01234 Total assets ($B) Participants Amkor Technology, Inc. 401(k) Plan, Total assets ($B): 0.174446934 · Participants: 375Amkor Technology, Inc. 401(k) PlanBanner Health Employees 401(k) Plan, Total assets ($B): 3.566847679 · Participants: 50602Banner Health Employees 401(k) PlanFreeport-Mcmoran Inc. Employee Capital Accumulation Program, Total assets ($B): 1.923226111 · Participants: 12362Freeport-Mcmoran Inc. Employee Capital Accumulation ProgramRepublic Services, Inc. 401(k) Plan, Total assets ($B): 1.806929859 · Participants: 28320Republic Services, Inc. 401(k) PlanStantec 401(k) Plan, Total assets ($B): 1.682454193 · Participants: 8764Stantec 401(k) PlanReliance Steel & Aluminum Co. Master 401(k) Plan, Total assets ($B): 1.33677823 · Participants: 9895Reliance Steel & Aluminum Co. Master 401(k) Plan
Amkor Technology, Inc. 401(k) Plan vs. nearby 401(k) plans in Arizona, assets vs. participants
Compare Amkor Technology, Inc. 401(k) Plan side-by-side with 3 peers →

Amkor Technology, Inc. 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Arizona, the nearest 401(k) by assets is Satellite Healthcare, Inc. 403(b) Retirement Plan in CA ($174M); by covered participants it is Strand Development Company LLC 401(k) Plan in SC (375 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (375 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 Amkor Technology, Inc. 401(k) Plan assets move in 2022? ▼
Amkor Technology, Inc. 401(k) Plan pulled back noticeably - down 14.5% during 2022, from $204M to $174M. Reported net income was -$30M.
How have Amkor Technology, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Amkor Technology, Inc.'s sponsor-wide assets grew 27.8%, from $174M to $223M.
Where does Amkor Technology, Inc. 401(k) Plan rank by assets among Form 5500 filers? ▼
Amkor Technology, Inc. 401(k) Plan ranks in the 95th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Amkor Technology, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Satellite Healthcare, Inc. 403(b) Retirement Plan in CA ($174M, 2,323 participants).
Which 401(k) plans cover a similar participant headcount to Amkor Technology, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Strand Development Company LLC 401(k) Plan in SC (375 participants, $3M 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 231722724.

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.