401(k) · DOL Form 5500 · 2024

Mks Instruments, Inc. 401(k) Plan

Data updated 2026-07-24

$840M
Total assets: 2,770
Participants: 98th
Percentile by assets: $303,093
Avg per participant

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.

98th percentile by assets (of 116,472 plans)

Coverage in Massachusetts

Mks Instruments, Inc. Profit Sharing & 401(k) Plan covers 2,770 participants in Massachusetts, 4.3x the typical Massachusetts plan (state average ~641 per filing). Assets: $840M.

$840M
total plan assets (2024 EOY): 2,770
covered participants: 98th
percentile by assets (of 116,472 plans): $303,093
avg assets per participant

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 →

State

Massachusetts

Industry

Manufacturing

Participants vs Massachusetts filers

In Massachusetts, the average filing covers about 641 participants across 3,941 plans. Mks Instruments, Inc. Profit Sharing & 401(k) Plan reports 2,770 participants - 4.3x that state average ($840M EOY assets).

Massachusetts filing particulars

Total Assets (Beginning of Year)	$765M
Net Assets (End of Year)	$840M
Net Income	$75M
Employer EIN	042277512
Plan Effective Date	1978-07-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Mks Instruments, Inc.)

Total plan assets by year, all Mks Instruments, Inc. plans on file

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

Fidelity Retirement Savings Plan $34.2B · 66,907
Liberty Mutual 401(k) Plan $11.4B · 34,618
Massachusetts Institute of Technology Supplemental 401(k) Plan $7.7B · 14,762
Boston Scientific Corporation 401(k) Retirement Savings Plan $6.8B · 20,639
State Street Salary Savings Program $6.5B · 12,777

Compare Mks Instruments, Inc. Profit Sharing & 4… side-by-side with 3 peers →

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Mks Instruments, Inc. Profit Sharing & 401(k) Plan by total assets, not by location.

My Savings Plan (KY) $840M · 5,748
Acosta, Inc. 401(k) Retirement Plan (FL) $839M · 27,227
Transocean U.S. Savings Plan () $839M · 2,151
Thryv Savings Plan (TX) $841M · 2,041

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 116,472 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).

Next read for Mks Instruments, Inc. Profit Sharing & 4…

Filing takeaways

Ways to act on Mks Instruments, Inc. Profit Sharing & 401(k) Plan's numbers.

By total assets, Mks Instruments, Inc. Profit Sharing & 401(k) Plan ranks in the top 5% of all filed plans by assets. See the largest plans
Compare it side-by-side against 3 similar 401(k) plans in Massachusetts. Compare plans
Mks Instruments, Inc.'s sponsor-wide assets have grown 32.6% since 2022 across 3 plan years on file. More Manufacturing plans

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.