401(k) · DOL Form 5500 · 2023

On Semiconductor Corporation 401(k) Plan

Data updated 2026-08-25

$1.2B
Total assets Very large vs avg
3,121
Participants Above avg headcount
99th
Percentile by assets National rank
$385,287
Avg per participant High balance/head
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Official DOL plan name: Onsemi 401(k) Plan · Sponsored by On Semiconductor Corporation · Arizona · Manufacturing

$1.2B in assets, 3,121 participants

On Semiconductor Corporation's Onsemi 401(k) Plan reported $1.2B in total assets and 3,121 participants in its 2023 DOL Form 5500 filing, ranking in the 99th 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.

  • #18,332 in Manufacturing (18,722 peers)

Coverage in Arizona

Onsemi 401(k) Plan covers 3,121 participants in Arizona, 5.5x the typical Arizona plan (state average ~564 per filing). Assets: $1.2B.

#18,332
in Manufacturing (18,722 peers)
+9.7%
assets growth YoY
12×
vs typical plan assets (national mean)

Onsemi 401(k) Plan's outsized position by total assets

Onsemi 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$1,202,481,653 Top 1% higher than 99% of 127,068 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 2023

Onsemi 401(k) Plan's large-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Onsemi 401(k) Plan lands in the large band (3,121 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Onsemi 401(k) Plan reported net income rose from -$284M in the plan year 2022 filing to $104M in the plan year 2023 filing.
  • Onsemi 401(k) Plan reported participants fell from 3,556 in the plan year 2022 filing to 3,121 in the plan year 2023 filing.
  • Onsemi 401(k) Plan end-of-year assets rose from $1.1B in the plan year 2022 filing to $1.2B in the plan year 2023 filing.

See the national 2022→2023 release diff →

EBSA filing schedule strip

Filing strip 363840979 · On Semiconductor Corporation PY 2023 · 401(k)

Onsemi 401(k) Plan · $1.2B · 3,121 · 99th

  • PART $1.2B
  • TYPE 3,121
  • NET 99th
  • BOOK 401(k)
  • VS-ST near Crowe LLP Retirement Plan
  • BOY ind #18332

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 →

Onsemi 401(k) Plan in the asset neighbourhood

Onsemi 401(k) Plan$1.2BCrowe LLP Retirement Plan$1.2BPerkins Coie Retirement and 401(k) PlanPerkins Coie Retirement and …$1.2BMw&e Savings and Retirement PlanMw&e Savings and Retirement …$1.2BXl America, Inc. Employee Savings PlanXl America, Inc. Employee Sa…$1.2B
End-of-year total assets ($B) among Onsemi 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Arizona filing particulars

Total Assets (Beginning of Year)$1.1B
Net Assets (End of Year)$1.2B
Net Income$104M
Employer EIN363840979
Plan Effective Date1999-08-01
Filing StatusFILING RECEIVED

Sponsor Plan History (On Semiconductor Corporation)

Sponsor-wide plan assets over time

All On Semiconductor Corporation plans reported in each filing year

Latest sponsor-wide plan assets
$1.2B 9.63965116782153% vs 2022
2023 filing year
$1.05B$1.1B$1.15B$1.2B$1.25B 20222023 $1.11B $1.22B ▲ +9.9%
Year Plans Participants Total Assets
2022 2 3,662 $1.1B
2023 2 3,239 $1.2B

Nearby 401(k) Plans in Arizona

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

Onsemi 401(k) Plan vs. nearby 401(k) plans in Arizona, assets vs. participants Scatter plot of 6 data points. 0200004000060000 0123456 Total assets ($B) Participants Onsemi 401(k) Plan, Total assets ($B): 1.202481653 · Participants: 3121Onsemi 401(k) PlanBechtel Trust & Thrift Plan, Total assets ($B): 5.691074806 · Participants: 7448Bechtel Trust & Thrift PlanBanner Health Employees 401(k) Plan, Total assets ($B): 4.270882725 · Participants: 52452Banner Health Employees 401(k) PlanRepublic Services, Inc. 401(k) Plan, Total assets ($B): 2.379834679 · Participants: 28131Republic Services, Inc. 401(k) PlanFreeport-Mcmoran Inc. Employee Capital Accumulation Program, Total assets ($B): 2.323111586 · Participants: 13105Freeport-Mcmoran Inc. Employee Capital Accumulation ProgramStantec 401(k) Plan, Total assets ($B): 2.021683156 · Participants: 10719Stantec 401(k) Plan
Onsemi 401(k) Plan vs. nearby 401(k) plans in Arizona, assets vs. participants
Compare Onsemi 401(k) Plan side-by-side with 3 peers →

Onsemi 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Arizona, the nearest 401(k) by assets is Crowe LLP Retirement Plan in IN ($1.2B); by covered participants it is Prime, Inc. Success Sharing Plan in MO (3,120 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($1.2B here).

Similar participant headcount

Nearest other-state filings by covered participants (3,121 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Onsemi 401(k) Plan assets move in 2023? ▼
Onsemi 401(k) Plan grew at a solid clip - up 9.7% during 2023, from $1.1B to $1.2B. Reported net income was $104M.
How have On Semiconductor Corporation plan assets changed over time? ▼
Across 2 plan years on file (2022-2023), On Semiconductor Corporation's sponsor-wide assets grew 9.6%, from $1.1B to $1.2B.
Where does Onsemi 401(k) Plan rank by assets among Form 5500 filers? ▼
Onsemi 401(k) Plan ranks in the 99th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Onsemi 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Crowe LLP Retirement Plan in IN ($1.2B, 5,058 participants).
Which 401(k) plans cover a similar participant headcount to Onsemi 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Prime, Inc. Success Sharing Plan in MO (3,120 participants, $185M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 363840979.

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.