401(k) · DOL Form 5500 · 2023

Vicor Corporation 401(k) Plan

Data updated 2026-08-25

$174M
Total assets Near avg plan size
976
Participants Near avg headcount
94th
Percentile by assets National rank
$178,088
Avg per participant Above avg balance/head
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Official DOL plan name: Vicor 401(k) Plan · Sponsored by Vicor Corporation · Massachusetts · Manufacturing

$174M in assets, 976 participants

Vicor Corporation's Vicor 401(k) Plan reported $174M in total assets and 976 participants in its 2023 DOL Form 5500 filing, ranking in the 94th 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.

  • #17,048 in Manufacturing (18,722 peers)

Where Vicor 401(k) Plan sits by assets

Vicor 401(k) Plan sits in the top 10% of all filed plans by assets, $174M for 976 participants (~$178,088/participant), up 14.9% in 2023.

#17,048
in Manufacturing (18,722 peers)
+14.9%
assets growth YoY
1.7×
vs typical plan assets (national mean)

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

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

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

$173,814,103 Top 6% higher than 94% 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

Vicor 401(k) 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. Vicor 401(k) Plan sits mid-pack in the medium band (976 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Vicor 401(k) Plan reported net income rose from -$32M in the plan year 2022 filing to $23M in the plan year 2023 filing.
  • Vicor 401(k) Plan end-of-year assets rose from $151M in the plan year 2022 filing to $174M in the plan year 2023 filing.
  • Vicor 401(k) Plan reported participants rose from 934 in the plan year 2022 filing to 976 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Plan-year Form 5500 strip

Filing strip 042742817 · Vicor Corporation PY 2023 · 401(k)

Vicor 401(k) Plan · $174M · 976 · 94th

  • NET $174M
  • BOOK 976
  • VS-ST 94th
  • BOY 401(k)
  • SCH near San Antonio Regional Hospital Savings Plan
  • EBSA ind #17048

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 Massachusetts →

Vicor 401(k) Plan in the asset neighbourhood

San Antonio Regional Hospital Savings PlanSan Antonio Regional Hospita…$174MVicor 401(k) Plan$174MWisconsin Pipe Trades 401(k) PlanWisconsin Pipe Trades 401(k)…$174MMavis Tire Supply LLC 401(k) PlanMavis Tire Supply LLC 401(k)…$174MCardiovascular Institute of the South 401(k) Profit Sharing PlanCardiovascular Institute of …$174M
End-of-year total assets ($M) among Vicor 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Scale-class filing particulars (2023)

Total Assets (Beginning of Year)$151M
Net Assets (End of Year)$174M
Net Income$23M
Employer EIN042742817
Plan Effective Date1989-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Vicor Corporation)

Sponsor-wide plan assets over time

All Vicor Corporation plans reported in each filing year

Latest sponsor-wide plan assets
$186M 23.183162619717262% vs 2022
2024 filing year
$140M$160M$180M$200M 202220232024 $151M $186M ▲ +23.2%
Year Plans Participants Total Assets
2022 1 934 $151M
2023 1 976 $174M
2024 1 943 $186M

Nearby 401(k) Plans in Massachusetts

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

Vicor 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -10010203040 Total assets ($B) Participants Vicor 401(k) Plan, Total assets ($B): 0.173814103 · Participants: 976Vicor 401(k) PlanFidelity Retirement Savings Plan, Total assets ($B): 28.649852331 · Participants: 62289Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 10.556596852 · Participants: 37052Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 6.829912863 · Participants: 14094Massachusetts Institute of Technology Supplemental 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 5.786107181 · Participants: 19881Boston Scientific Corporation 401(k) Retirement Savings PlanPhilips North America 401(k) Plan, Total assets ($B): 5.779286156 · Participants: 19120Philips North America 401(k) Plan
Vicor 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Vicor 401(k) Plan side-by-side with 3 peers →

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

Outside Massachusetts, the nearest 401(k) by assets is San Antonio Regional Hospital Savings Plan in CA ($174M); by covered participants it is Imperfect Foods 401(k) Plan in CA (976 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($174M here).

Similar participant headcount

Nearest other-state filings by covered participants (976 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 Vicor 401(k) Plan assets move in 2023? ▼
Vicor 401(k) Plan grew at a solid clip - up 14.9% during 2023, from $151M to $174M. Reported net income was $23M.
How have Vicor Corporation plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Vicor Corporation's sponsor-wide assets grew 23.2%, from $151M to $186M.
Where does Vicor 401(k) Plan rank by assets among Form 5500 filers? ▼
Vicor 401(k) Plan ranks in the 94th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to Vicor 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is San Antonio Regional Hospital Savings Plan in CA ($174M, 2,257 participants).
Which 401(k) plans cover a similar participant headcount to Vicor 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Imperfect Foods 401(k) Plan in CA (976 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 042742817.

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.