401(k) · DOL Form 5500 · 2022

Allegro Microsystems 401(k) Plan

Data updated 2026-08-11

$196M
Total assets
611
Participants
96th
Percentile by assets
$321,354
Avg per participant
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Official DOL plan name: Allegro Microsystems, LLC Employees' Retirement Savings Plan · Sponsored by Allegro Microsystems · New Hampshire · Manufacturing

$196M in assets, 611 participants

Allegro Microsystems's Allegro Microsystems, LLC Employees' Retirement Savings Plan reported $196M in total assets and 611 participants in its 2022 DOL Form 5500 filing, ranking in the 96th 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.

  • 96th percentile by assets (of 139,126 plans)
  • #19,158 in Manufacturing (20,602 peers)

Coverage in New Hampshire

Allegro Microsystems, LLC Employees' Retirement Savings Plan covers 611 participants in New Hampshire, 2.0x the typical New Hampshire plan (state average ~301 per filing). Assets: $196M.

$196M
total plan assets (2022 EOY)
611
covered participants
96th
percentile by assets (of 139,126 plans)
$321,354
avg assets per participant

The plan reported a net loss of $45M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Industry

Participants vs New Hampshire filers

In New Hampshire, the average filing covers about 301 participants across 708 plans. Allegro Microsystems, LLC Employees' Retirement Savings Plan reports 611 participants - 2.0x that state average ($196M EOY assets).

New Hampshire filing particulars

Total Assets (Beginning of Year)$241M
Net Assets (End of Year)$196M
Net Income-$45M
Employer EIN223056180
Plan Effective Date1991-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Allegro Microsystems)

$180M$200M$220M$240M$260M 202220232024 $196M $252M â–˛ +28.3%
Total plan assets by year, all Allegro Microsystems plans on file
Year Plans Participants Total Assets
2022 1 611 $196M
2023 1 651 $235M
2024 1 716 $252M

Nearby 401(k) Plans in New Hampshire

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

Allegro Microsystems, LLC Employees' Retirement Savings Plan vs. nearby 401(k) plans in New Hampshire, assets vs. participants

Allegro Microsystems, LLC Employees' Retirement Savings Plan vs. nearby 401(k) plans in New Hampshire, assets vs. participants Scatter plot of 6 data points. 050001000015000 100200300400500600 Total assets ($M) Participants Allegro Microsystems…C&s and Affiliates 4…Ams Osram Savings PlanAlbany International…Connection Employee …Coca Cola Beverages …
Allegro Microsystems, LLC Employees' Retirement Savings Plan vs. nearby 401(k) plans in New Hampshire, assets vs. participants

Similar-Sized 401(k) Plans Nationally

401(k) plans in other states closest to Allegro Microsystems, LLC Employees' Retirement Savings Plan by total assets, not by location.

Frequently Asked Questions

How did Allegro Microsystems, LLC Employees' Retirement Savings Plan assets move in 2022?
Allegro Microsystems, LLC Employees' Retirement Savings Plan declined sharply - down 18.7% during 2022, from $241M to $196M. Reported net income was -$45M.
How have Allegro Microsystems plan assets changed over time?
Across 3 plan years on file (2022-2024), Allegro Microsystems's sponsor-wide assets grew 28.3%, from $196M to $252M.
Where does Allegro Microsystems, LLC Employees' Retirement Savings Plan rank by assets among Form 5500 filers?
Allegro Microsystems, LLC Employees' Retirement Savings Plan ranks in the 96th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Allegro Microsystems, LLC Employees' Retirement Savings Plan?
Among 401(k) plans in other states, the closest by assets is Bristol-Myers Squibb Puerto Rico, Inc. Savings and Investment Program in ($196M, 1,619 participants).

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Filing takeaways

Ways to act on Allegro Microsystems, LLC Employees' Retirement Savings Plan's numbers.