401(k) · DOL Form 5500 · 2024

Harmonic Drive LLC 401(k) Plan

Data updated 2026-08-25

$27M
Total assets Below avg plan size
206
Participants Below avg headcount
76th
Percentile by assets National rank
$130,669
Avg per participant Near avg balance/head
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Official DOL plan name: Savings Plan of Harmonic Drive LLC · Sponsored by Harmonic Drive LLC · Massachusetts · Manufacturing

$27M in assets, 206 participants

Harmonic Drive LLC's Savings Plan of Harmonic Drive LLC reported $27M in total assets and 206 participants in its 2024 DOL Form 5500 filing, ranking in the 76th 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.

  • #11,810 in Manufacturing (17,777 peers)

Coverage in Massachusetts

Savings Plan of Harmonic Drive LLC covers 206 participants in Massachusetts, about 31% of the average Massachusetts filer (state average ~659 per filing). Assets: $27M.

#11,810
in Manufacturing (17,777 peers)
+8.1%
assets growth YoY
0.3×
vs typical plan assets (national mean)

Savings Plan of Harmonic Drive LLC's outsized position by total assets

Savings Plan of Harmonic Drive LLC vs every filed plan by assets

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

$26,917,902 Top 24% higher than 76% 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

Savings Plan of Harmonic Drive LLC among mid-size filed plans by headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Savings Plan of Harmonic Drive LLC sits mid-pack in the medium band (206 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Savings Plan of Harmonic Drive LLC reported net income rose from $1M in the plan year 2023 filing to $2M in the plan year 2024 filing.
  • Savings Plan of Harmonic Drive LLC end-of-year assets rose from $25M in the plan year 2023 filing to $27M in the plan year 2024 filing.
  • Savings Plan of Harmonic Drive LLC reported participants rose from 194 in the plan year 2023 filing to 206 in the plan year 2024 filing.

See the national 2023→2024 release diff →

Form 5500 schedule snapshot

Filing strip 203942105 · Harmonic Drive LLC PY 2024 · 401(k)

Savings Plan of Harmonic Drive LLC · $27M · 206 · 76th

  • NET $27M
  • NET 206
  • NET 76th
  • NET 401(k)
  • NET near Western Trailer Co. 401(k) Profit Sharing Plan
  • NET ind #11810

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 →

Savings Plan of Harmonic Drive LLC in the asset neighbourhood

Savings Plan of Harmonic Drive LLCSavings Plan of Harmonic Dri…$27MWestern Trailer Co. 401(k) Profit Sharing PlanWestern Trailer Co. 401(k) P…$27MDiamond Plastics Corporation 401(k) PlanDiamond Plastics Corporation…$27MResource Pro LLC 401(k) Profit Sharing Plan and TrustResource Pro LLC 401(k) Prof…$27MIntradeco Retirement & Savings PlanIntradeco Retirement & Savin…$27M
End-of-year total assets ($M) among Savings Plan of Harmonic Drive LLC and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Massachusetts filing particulars

Total Assets (Beginning of Year)$25M
Net Assets (End of Year)$27M
Net Income$2M
Employer EIN203942105
Plan Effective Date2006-03-15
Filing StatusFILING RECEIVED

Sponsor Plan History (Harmonic Drive LLC)

Sponsor-wide plan assets over time

All Harmonic Drive LLC plans reported in each filing year

Latest sponsor-wide plan assets
$27M 14.186578018397094% vs 2022
2024 filing year
$22M$24M$26M$28M 202220232024 $23.6M $26.9M ▲ +14.2%
Year Plans Participants Total Assets
2022 1 154 $24M
2023 1 194 $25M
2024 1 206 $27M

Nearby 401(k) Plans in Massachusetts

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

Savings Plan of Harmonic Drive LLC vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -10010203040 Total assets ($B) Participants Savings Plan of Harmonic Drive LLC, Total assets ($B): 0.026917902 · Participants: 206Savings Plan of Harmonic Drive LLCFidelity 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
Savings Plan of Harmonic Drive LLC vs. nearby 401(k) plans in Massachusetts, assets vs. participants

Savings Plan of Harmonic Drive LLC's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is Western Trailer Co. 401(k) Profit Sharing Plan in ID ($27M); by covered participants it is Fairwave Holdings 401(k) Savings Plan in MO (206 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (206 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 Savings Plan of Harmonic Drive LLC assets move in 2024?
Savings Plan of Harmonic Drive LLC grew at a solid clip - up 8.1% during 2024, from $25M to $27M. Reported net income was $2M.
How have Harmonic Drive LLC plan assets changed over time?
Across 3 plan years on file (2022-2024), Harmonic Drive LLC's sponsor-wide assets grew 14.2%, from $24M to $27M.
Where does Savings Plan of Harmonic Drive LLC rank by assets among Form 5500 filers?
Savings Plan of Harmonic Drive LLC ranks in the 76th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Savings Plan of Harmonic Drive LLC?
Among 401(k) plans in other states, the closest by assets is Western Trailer Co. 401(k) Profit Sharing Plan in ID ($27M, 305 participants).
Which 401(k) plans cover a similar participant headcount to Savings Plan of Harmonic Drive LLC?
Among 401(k) plans in other states, the closest by covered participants is Fairwave Holdings 401(k) Savings Plan in MO (206 participants, $584K in assets).