401(k) · DOL Form 5500 · 2023

On Semiconductor Corporation 401(k) Plan

Data updated 2026-08-25

$13M
Total assets Small plan by assets
118
Participants Small participant base
65th
Percentile by assets National rank
$111,803
Avg per participant Below avg balance/head
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Official DOL plan name: Onsemi Union Savings and Retirement Plan · Sponsored by On Semiconductor Corporation · Arizona · Manufacturing

$13M in assets, 118 participants

On Semiconductor Corporation's Onsemi Union Savings and Retirement Plan reported $13M in total assets and 118 participants in its 2023 DOL Form 5500 filing, ranking in the 65th 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.

  • #9,777 in Manufacturing (18,722 peers)

Coverage in Arizona

Onsemi Union Savings and Retirement Plan covers 118 participants in Arizona, about 21% of the average Arizona filer (state average ~564 per filing). Assets: $13M.

#9,777
in Manufacturing (18,722 peers)
+7.9%
assets growth YoY

Onsemi Union Savings and Retirement Plan's mid-pack asset rank among Manufacturing and all filers

Onsemi Union Savings and Retirement Plan vs every filed plan by assets

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

$13,192,743 Top 35% higher than 65% 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 Union Savings and Retirement Plan among mid-size filed plans by headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Onsemi Union Savings and Retirement Plan sits mid-pack in the medium band (118 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Onsemi Union Savings and Retirement Plan reported net income rose from -$2M in the plan year 2022 filing to $977K in the plan year 2023 filing.
  • Onsemi Union Savings and Retirement Plan reported participants rose from 106 in the plan year 2022 filing to 118 in the plan year 2023 filing.
  • Onsemi Union Savings and Retirement Plan end-of-year assets rose from $12M in the plan year 2022 filing to $13M in the plan year 2023 filing.

See the national 2022→2023 release diff →

Plan-year Form 5500 strip

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

Onsemi Union Savings and Retirement Plan · $13M · 118 · 65th

  • TYPE $13M
  • NET 118
  • BOOK 65th
  • VS-ST 401(k)
  • BOY near Tax Deferred Annuity Plan of Planned Parenthood Mar Monte, Inc.
  • SCH ind #9777

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 Union Savings and Retirement Plan in the asset neighbourhood

Onsemi Union Savings and Retirement PlanOnsemi Union Savings and Ret…$13MTax Deferred Annuity Plan of Planned Parenthood Mar Monte, Inc.Tax Deferred Annuity Plan of…$13MChainalysis 401(k) Plan$13MWhen I Work, Inc. 401(k) Plan$13MBayland Buildings, Inc. 401(k) Profit Sharing Plan & TrustBayland Buildings, Inc. 401(…$13M
End-of-year total assets ($M) among Onsemi Union Savings and Retirement Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Arizona filing particulars

Total Assets (Beginning of Year)$12M
Net Assets (End of Year)$13M
Net Income$977K
Employer EIN363840979
Plan Effective Date2016-09-19
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 Union Savings and Retirement Plan vs. nearby 401(k) plans in Arizona, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 -20246 Total assets ($B) Participants Onsemi Union Savings and Retirement Plan, Total assets ($B): 0.013192743 · Participants: 118Onsemi Union Savings and Retirement 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 Union Savings and Retirement Plan vs. nearby 401(k) plans in Arizona, assets vs. participants
Compare Onsemi Union Savings and Retirement Plan side-by-side with 3 peers →

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

Outside Arizona, the nearest 401(k) by assets is Tax Deferred Annuity Plan of Planned Parenthood Mar Monte, Inc. in CA ($13M); by covered participants it is Ensign Natural Resources 401(k) Plan in TX (118 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (118 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 Union Savings and Retirement Plan assets move in 2023? ▼
Onsemi Union Savings and Retirement Plan grew at a solid clip - up 7.9% during 2023, from $12M to $13M. Reported net income was $977K.
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.
Which 401(k) plans are similar in size to Onsemi Union Savings and Retirement Plan? ▼
Among 401(k) plans in other states, the closest by assets is Tax Deferred Annuity Plan of Planned Parenthood Mar Monte, Inc. in CA ($13M, 228 participants).
Which 401(k) plans cover a similar participant headcount to Onsemi Union Savings and Retirement Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Ensign Natural Resources 401(k) Plan in TX (118 participants, N/A 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.