401(k) · DOL Form 5500 · 2024

Vicor Corporation 401(k) Plan

Data updated 2026-08-25

$186M
Total assets Near avg plan size
943
Participants Near avg headcount
94th
Percentile by assets National rank
$197,625
Avg per participant Above avg balance/head
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Official DOL plan name: Vicor Corporation 401(k) Plan · Sponsored by Vicor Corporation · Massachusetts · Manufacturing

$186M in assets, 943 participants

Vicor Corporation's Vicor Corporation 401(k) Plan reported $186M in total assets and 943 participants in its 2024 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.

  • #16,162 in Manufacturing (17,777 peers)

Where Vicor Corporation 401(k) Plan sits by assets

Vicor Corporation 401(k) Plan sits in the top 10% of all filed plans by assets, $186M for 943 participants (~$197,625/participant), up 7.2% in 2024.

#16,162
in Manufacturing (17,777 peers)
+7.2%
assets growth YoY
1.9×
vs typical plan assets (national mean)

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

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

End-of-year total assets · plan year 2024 · DOL Form 5500

$186,360,466 Top 6% higher than 94% of 123,620 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 2024

Vicor Corporation 401(k) Plan among mid-size filed plans by headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Vicor Corporation 401(k) Plan sits mid-pack in the medium band (943 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Vicor Corporation 401(k) Plan reported net income fell from $23M in the plan year 2023 filing to $13M in the plan year 2024 filing.
  • Vicor Corporation 401(k) Plan end-of-year assets rose from $174M in the plan year 2023 filing to $186M in the plan year 2024 filing.
  • Vicor Corporation 401(k) Plan reported participants fell from 976 in the plan year 2023 filing to 943 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Published 5500 schedule card

Filing strip 042742817 · Vicor Corporation PY 2024 · 401(k)

Vicor Corporation 401(k) Plan · $186M · 943 · 94th

  • BOY $186M
  • BOY 943
  • BOY 94th
  • BOY 401(k)
  • BOY near Monroe Energy Retirement Plan
  • BOY ind #16162

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 Corporation 401(k) Plan in the asset neighbourhood

Carson Tahoe Health System 401(k) PlanCarson Tahoe Health System 4…$187MVicor Corporation 401(k) Plan$186MMonroe Energy Retirement Plan$186MDucommun Incorporated Retirement Savings PlanDucommun Incorporated Retire…$186MCoeur Mining Defined Contribution and 401(k) PlanCoeur Mining Defined Contrib…$186M
End-of-year total assets ($M) among Vicor Corporation 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$174M
Net Assets (End of Year)$186M
Net Income$13M
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 Corporation 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -10010203040 Total assets ($B) Participants Vicor Corporation 401(k) Plan, Total assets ($B): 0.186360466 · Participants: 943Vicor Corporation 401(k) PlanFidelity Retirement Savings Plan, Total assets ($B): 34.201609937 · Participants: 66907Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 11.352606499 · Participants: 34618Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 7.720373045 · Participants: 14762Massachusetts Institute of Technology Supplemental 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 6.775289067 · Participants: 20639Boston Scientific Corporation 401(k) Retirement Savings PlanState Street Salary Savings Program, Total assets ($B): 6.532301643 · Participants: 12777State Street Salary Savings Program
Vicor Corporation 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Vicor Corporation 401(k) Plan side-by-side with 3 peers →

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

Outside Massachusetts, the nearest 401(k) by assets is Monroe Energy Retirement Plan in PA ($186M); by covered participants it is Rs Americas, Inc. 401(k) in TX (943 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($186M here).

Similar participant headcount

Nearest other-state filings by covered participants (943 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Vicor Corporation 401(k) Plan assets move in 2024? ▼
Vicor Corporation 401(k) Plan grew at a solid clip - up 7.2% during 2024, from $174M to $186M. Reported net income was $13M.
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 Corporation 401(k) Plan rank by assets among Form 5500 filers? ▼
Vicor Corporation 401(k) Plan ranks in the 94th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to Vicor Corporation 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Monroe Energy Retirement Plan in PA ($186M, 508 participants).
Which 401(k) plans cover a similar participant headcount to Vicor Corporation 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Rs Americas, Inc. 401(k) in TX (943 participants, $110M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

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.