401(k) · DOL Form 5500 · 2023

Allegro Microsystems 401(k) Plan

Data updated 2026-08-11

$235M
Total assets: 651
Participants: 95th
Percentile by assets: $360,425
Avg per participant

Official DOL plan name: Allegro Microsystems, LLC Employees' Retirement Savings Plan · Sponsored by Allegro Microsystems · New Hampshire · Manufacturing

$235M in assets, 651 participants

Allegro Microsystems's Allegro Microsystems, LLC Employees' Retirement Savings Plan reported $235M in total assets and 651 participants in its 2023 DOL Form 5500 filing, ranking in the 95th 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.

95th percentile by assets (of 127,072 plans)
#17,345 in Manufacturing (18,722 peers)

Coverage in New Hampshire

Allegro Microsystems, LLC Employees' Retirement Savings Plan covers 651 participants in New Hampshire, 2.2x the typical New Hampshire plan (state average ~301 per filing). Assets: $235M.

$235M
total plan assets (2023 EOY): 651
covered participants: 95th
percentile by assets (of 127,072 plans): $360,425
avg assets per participant

Allegro Microsystems, LLC Employees' Retirement Savings Plan reported net income rose from -$45M in the plan year 2022 filing to $38M in the plan year 2023 filing.
Allegro Microsystems, LLC Employees' Retirement Savings Plan end-of-year assets rose from $196M in the plan year 2022 filing to $235M in the plan year 2023 filing.
Allegro Microsystems, LLC Employees' Retirement Savings Plan reported participants rose from 611 in the plan year 2022 filing to 651 in the plan year 2023 filing.

See the national 2022→2023 release diff →

State

New Hampshire

Industry

Manufacturing

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 651 participants - 2.2x that state average ($235M EOY assets).

New Hampshire filing particulars

Total Assets (Beginning of Year)	$196M
Net Assets (End of Year)	$235M
Net Income	$38M
Employer EIN	223056180
Plan Effective Date	1991-01-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Allegro Microsystems)

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

C&s and Affiliates 401(k) Savings Plan (a) $575M · 12,135
Ams Osram Savings Plan $462M · 977
Albany International Corp. Prosperity Plus Savings Plan $448M · 1,784
Connection Employee 401(k) and Profit Sharing Plan $378M · 2,702
Coca Cola Beverages Northeast, Inc. Incentive Savings Plan $363M · 2,708

Compare Allegro Microsystems, LLC Employees' Ret… side-by-side with 3 peers →

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.

Raymours Furniture Company, Inc. 401(k) and Profit Sharing Plan (NY) $235M · 5,647
IBEW Local 405 Deferred Savings Plan (IA) $235M · 722
Am/Ns Calvert LLC 401(k) Plan (AL) $235M · 1,940
Alphastaff Retirement Savings Plan (FL) $235M · 8,025

Frequently Asked Questions

How did Allegro Microsystems, LLC Employees' Retirement Savings Plan assets move in 2023? ▼

Allegro Microsystems, LLC Employees' Retirement Savings Plan grew sharply - up 19.5% during 2023, from $196M to $235M. Reported net income was $38M.

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 95th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (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 Raymours Furniture Company, Inc. 401(k) and Profit Sharing Plan in NY ($235M, 5,647 participants).

Next read for Allegro Microsystems, LLC Employees' Ret…

Filing takeaways

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

By total assets, Allegro Microsystems, LLC Employees' Retirement Savings 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 New Hampshire. Compare plans
Allegro Microsystems's sponsor-wide assets have grown 28.3% 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 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 223056180.