401(k) · DOL Form 5500 · 2023

Allegro Microsystems 401(k) Plan

Data updated 2026-08-25

$235M
Total assets Near avg plan size
651
Participants Below avg headcount
95th
Percentile by assets National rank
$360,425
Avg per participant High balance/head
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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.

  • #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.

#17,345
in Manufacturing (18,722 peers)
+19.5%
assets growth YoY
2.4×
vs typical plan assets (national mean)

Allegro Microsystems, LLC Employees' Retirement Savings Plan's outsized position by total assets

Allegro Microsystems, LLC Employees' Retirement Savings Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$234,636,927 Top 5% higher than 95% of 127,068 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 2023

Allegro Microsystems, LLC Employees' Retirement Savings Plan among mid-size filed plans by headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Allegro Microsystems, LLC Employees' Retirement Savings Plan sits mid-pack in the medium band (651 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • 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 →

EBSA filing schedule strip

Filing strip 223056180 · Allegro Microsystems PY 2023 · 401(k)

Allegro Microsystems, LLC Employees' Retirement Savings Plan · $235M · 651 · 95th

  • PART $235M
  • TYPE 651
  • NET 95th
  • BOOK 401(k)
  • VS-ST near Raymours Furniture Company, Inc. 401(k) and Profit Sharing Plan
  • BOY ind #17345

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 New Hampshire →

Allegro Microsystems, LLC Employees' Retirement Savings Plan in the asset neighbourhood

Alphastaff Retirement Savings PlanAlphastaff Retirement Saving…$235MAm/Ns Calvert LLC 401(k) Plan$235MIBEW Local 405 Deferred Savings PlanIBEW Local 405 Deferred Savi…$235MAllegro Microsystems, LLC Employees' Retirement Savings PlanAllegro Microsystems, LLC Em…$235MRaymours Furniture Company, Inc. 401(k) and Profit Sharing PlanRaymours Furniture Company, …$235M
End-of-year total assets ($M) among Allegro Microsystems, LLC Employees' Retirement Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

New Hampshire filing particulars

Total Assets (Beginning of Year)$196M
Net Assets (End of Year)$235M
Net Income$38M
Employer EIN223056180
Plan Effective Date1991-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Allegro Microsystems)

Sponsor-wide plan assets over time

All Allegro Microsystems plans reported in each filing year

Latest sponsor-wide plan assets
$252M 28.253702788357266% vs 2022
2024 filing year
$180M$200M$220M$240M$260M 202220232024 $196M $252M ▲ +28.3%
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 Scatter plot of 6 data points. 050001000015000 200300400500600 Total assets ($M) Participants Allegro Microsystems, LLC Employees' Retirement Savings Plan, Total assets ($M): 234.636927 · Participants: 651Allegro Microsystems, LLC Employees' Retirement Savings PlanC&s and Affiliates 401(k) Savings Plan (a), Total assets ($M): 574.6136 · Participants: 12135C&s and Affiliates 401(k) Savings Plan (a)Ams Osram Savings Plan, Total assets ($M): 461.503498 · Participants: 977Ams Osram Savings PlanAlbany International Corp. Prosperity Plus Savings Plan, Total assets ($M): 447.510354 · Participants: 1784Albany International Corp. Prosperity Plus Savings PlanConnection Employee 401(k) and Profit Sharing Plan, Total assets ($M): 378.181216 · Participants: 2702Connection Employee 401(k) and Profit Sharing PlanCoca Cola Beverages Northeast, Inc. Incentive Savings Plan, Total assets ($M): 362.577523 · Participants: 2708Coca Cola Beverages Northeast, Inc. Incentive Savings Plan
Allegro Microsystems, LLC Employees' Retirement Savings Plan vs. nearby 401(k) plans in New Hampshire, assets vs. participants
Compare Allegro Microsystems, LLC Employees' Retirement Savings Plan side-by-side with 3 peers →

Allegro Microsystems, LLC Employees' Retirement Savings Plan's out-of-state 401(k) peers by assets and headcount

Outside New Hampshire, the nearest 401(k) by assets is Raymours Furniture Company, Inc. 401(k) and Profit Sharing Plan in NY ($235M); by covered participants it is Weinstein Properties Employees' 401(k) Plan in VA (651 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($235M here).

Similar participant headcount

Nearest other-state filings by covered participants (651 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

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).
Which 401(k) plans cover a similar participant headcount to Allegro Microsystems, LLC Employees' Retirement Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Weinstein Properties Employees' 401(k) Plan in VA (651 participants, $13M in assets).

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.

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.