401(k) · DOL Form 5500 · 2024

Mks Instruments, Inc. 401(k) Plan

Data updated 2026-08-25

$840M
Total assets Above avg plan size
2,770
Participants Above avg headcount
98th
Percentile by assets National rank
$303,093
Avg per participant High balance/head
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Official DOL plan name: Mks Instruments, Inc. Profit Sharing & 401(k) Plan · Sponsored by Mks Instruments, Inc. · Massachusetts · Manufacturing

$840M in assets, 2,770 participants

Mks Instruments, Inc.'s Mks Instruments, Inc. Profit Sharing & 401(k) Plan reported $840M in total assets and 2,770 participants in its 2024 DOL Form 5500 filing, ranking in the 98th 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.

  • #17,242 in Manufacturing (17,777 peers)

Coverage in Massachusetts

Mks Instruments, Inc. Profit Sharing & 401(k) Plan covers 2,770 participants in Massachusetts, 4.2x the typical Massachusetts plan (state average ~659 per filing). Assets: $840M.

#17,242
in Manufacturing (17,777 peers)
+9.8%
assets growth YoY
8.4×
vs typical plan assets (national mean)

Mks Instruments, Inc. Profit Sharing & 401(k) Plan's outsized position by total assets

Mks Instruments, Inc. Profit Sharing & 401(k) Plan vs every filed plan by assets

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

$839,568,169 Top 2% higher than 98% 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

Mks Instruments, Inc. Profit Sharing & 401(k) Plan's large-plan peer group by participant headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Mks Instruments, Inc. Profit Sharing & 401(k) Plan lands in the large band (2,770 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Mks Instruments, Inc. Profit Sharing & 401(k) Plan reported net income fell from $91M in the plan year 2023 filing to $75M in the plan year 2024 filing.
  • Mks Instruments, Inc. Profit Sharing & 401(k) Plan end-of-year assets rose from $765M in the plan year 2023 filing to $840M in the plan year 2024 filing.
  • Mks Instruments, Inc. Profit Sharing & 401(k) Plan reported participants fell from 2,991 in the plan year 2023 filing to 2,770 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Form 5500 schedule snapshot

Filing strip 042277512 · Mks Instruments, Inc. PY 2024 · 401(k)

Mks Instruments, Inc. Profit Sharing & 401(k) Plan · $840M · 2,770 · 98th

  • EOY $840M
  • EOY 2,770
  • EOY 98th
  • EOY 401(k)
  • EOY near My Savings Plan
  • EOY ind #17242

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 →

Mks Instruments, Inc. Profit Sharing & 401(k) Plan in the asset neighbourhood

Thryv Savings Plan$841MMy Savings Plan$840MMks Instruments, Inc. Profit Sharing & 401(k) PlanMks Instruments, Inc. Profit…$840MAcosta, Inc. 401(k) Retirement PlanAcosta, Inc. 401(k) Retireme…$839MTransocean U.S. Savings Plan$839M
End-of-year total assets ($M) among Mks Instruments, Inc. Profit Sharing & 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Massachusetts filing particulars

Total Assets (Beginning of Year)$765M
Net Assets (End of Year)$840M
Net Income$75M
Employer EIN042277512
Plan Effective Date1978-07-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Mks Instruments, Inc.)

Sponsor-wide plan assets over time

All Mks Instruments, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$840M 32.6050558450344% vs 2022
2024 filing year
$600M$700M$800M$900M 202220232024 $633M $840M ▲ +32.6%
Year Plans Participants Total Assets
2022 1 2,719 $633M
2023 1 2,991 $765M
2024 1 2,770 $840M

Nearby 401(k) Plans in Massachusetts

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

Mks Instruments, Inc. Profit Sharing & 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -10010203040 Total assets ($B) Participants Mks Instruments, Inc. Profit Sharing & 401(k) Plan, Total assets ($B): 0.839568169 · Participants: 2770Mks Instruments, Inc. Profit Sharing & 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
Mks Instruments, Inc. Profit Sharing & 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Mks Instruments, Inc. Profit Sharing & 401(k) Plan side-by-side with 3 peers →

Mks Instruments, Inc. Profit Sharing & 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is My Savings Plan in KY ($840M); by covered participants it is Florida Cancer Specialists & Research Institute, LLC 401(k) Profit Sharing Plan & Trust in FL (2,770 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($840M here).

Similar participant headcount

Nearest other-state filings by covered participants (2,770 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 Mks Instruments, Inc. Profit Sharing & 401(k) Plan assets move in 2024? ▼
Mks Instruments, Inc. Profit Sharing & 401(k) Plan grew at a solid clip - up 9.8% during 2024, from $765M to $840M. Reported net income was $75M.
How have Mks Instruments, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Mks Instruments, Inc.'s sponsor-wide assets grew 32.6%, from $633M to $840M.
Where does Mks Instruments, Inc. Profit Sharing & 401(k) Plan rank by assets among Form 5500 filers? ▼
Mks Instruments, Inc. Profit Sharing & 401(k) Plan ranks in the 98th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Mks Instruments, Inc. Profit Sharing & 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is My Savings Plan in KY ($840M, 5,748 participants).
Which 401(k) plans cover a similar participant headcount to Mks Instruments, Inc. Profit Sharing & 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Florida Cancer Specialists & Research Institute, LLC 401(k) Profit Sharing Plan & Trust in FL (2,770 participants, $297M 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 042277512.

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.