401(k) · DOL Form 5500 · 2023

Aspen Aerogels, Inc. 401(k) Plan

Data updated 2026-08-25

$33M
Total assets Below avg plan size
507
Participants Below avg headcount
81st
Percentile by assets National rank
$65,843
Avg per participant Below avg balance/head
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Official DOL plan name: Aspen Aerogels, Inc. 401(k) Plan · Sponsored by Aspen Aerogels, Inc. · Massachusetts · Manufacturing

$33M in assets, 507 participants

Aspen Aerogels, Inc.'s Aspen Aerogels, Inc. 401(k) Plan reported $33M in total assets and 507 participants in its 2023 DOL Form 5500 filing, ranking in the 81st 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.

  • #13,640 in Manufacturing (18,722 peers)

Where Aspen Aerogels, Inc. 401(k) Plan sits by assets

Aspen Aerogels, Inc. 401(k) Plan sits in the top quartile of all filed plans by assets, $33M for 507 participants (~$65,843/participant), up 36.6% in 2023.

#13,640
in Manufacturing (18,722 peers)
+36.6%
assets growth YoY
0.3×
vs typical plan assets (national mean)

Aspen Aerogels, Inc. 401(k) Plan's outsized position by total assets

Aspen Aerogels, Inc. 401(k) Plan vs every filed plan by assets

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

$33,382,488 Top 19% higher than 81% 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

Aspen Aerogels, Inc. 401(k) 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. Aspen Aerogels, Inc. 401(k) Plan sits mid-pack in the medium band (507 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Aspen Aerogels, Inc. 401(k) Plan reported net income rose from $104K in the plan year 2022 filing to $9M in the plan year 2023 filing.
  • Aspen Aerogels, Inc. 401(k) Plan end-of-year assets rose from $24M in the plan year 2022 filing to $33M in the plan year 2023 filing.
  • Aspen Aerogels, Inc. 401(k) Plan reported participants rose from 397 in the plan year 2022 filing to 507 in the plan year 2023 filing.

See the national 2022→2023 release diff →

DOL schedule card

Filing strip 043559972 · Aspen Aerogels, Inc. PY 2023 · 401(k)

Aspen Aerogels, Inc. 401(k) Plan · $33M · 507 · 81st

  • ASSETS $33M
  • ASSETS 507
  • ASSETS 81st
  • ASSETS 401(k)
  • ASSETS near Kent Companies, Inc. Profit Sharing and 401(k) Savings Plan
  • ASSETS ind #13640

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 →

Aspen Aerogels, Inc. 401(k) Plan in the asset neighbourhood

Aspen Aerogels, Inc. 401(k) PlanAspen Aerogels, Inc. 401(k) …$33MKent Companies, Inc. Profit Sharing and 401(k) Savings PlanKent Companies, Inc. Profit …$33MVerinext Corp. 401(k) Retirement PlanVerinext Corp. 401(k) Retire…$33MInternational Intimates Inc. Retirement PlanInternational Intimates Inc.…$33MAlliance Shippers, Inc. 401(k) Savings PlanAlliance Shippers, Inc. 401(…$33M
End-of-year total assets ($M) among Aspen Aerogels, Inc. 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Scale-class filing particulars (2023)

Total Assets (Beginning of Year)$24M
Net Assets (End of Year)$33M
Net Income$9M
Employer EIN043559972
Plan Effective Date2005-05-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Aspen Aerogels, Inc.)

Sponsor-wide plan assets over time

All Aspen Aerogels, Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$41M 66.53697453628494% vs 2022
2024 filing year
$20M$25M$30M$35M$40M$45M 202220232024 $24.4M $40.7M ▲ +66.6%
Year Plans Participants Total Assets
2022 1 397 $24M
2023 1 507 $33M
2024 1 517 $41M

Nearby 401(k) Plans in Massachusetts

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

Aspen Aerogels, Inc. 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000 -10010203040 Total assets ($B) Participants Aspen Aerogels, Inc. 401(k) Plan, Total assets ($B): 0.033382488 · Participants: 507Aspen Aerogels, Inc. 401(k) PlanFidelity Retirement Savings Plan, Total assets ($B): 28.649852331 · Participants: 62289Fidelity Retirement Savings PlanLiberty Mutual 401(k) Plan, Total assets ($B): 10.556596852 · Participants: 37052Liberty Mutual 401(k) PlanMassachusetts Institute of Technology Supplemental 401(k) Plan, Total assets ($B): 6.829912863 · Participants: 14094Massachusetts Institute of Technology Supplemental 401(k) PlanBoston Scientific Corporation 401(k) Retirement Savings Plan, Total assets ($B): 5.786107181 · Participants: 19881Boston Scientific Corporation 401(k) Retirement Savings PlanPhilips North America 401(k) Plan, Total assets ($B): 5.779286156 · Participants: 19120Philips North America 401(k) Plan
Aspen Aerogels, Inc. 401(k) Plan vs. nearby 401(k) plans in Massachusetts, assets vs. participants
Compare Aspen Aerogels, Inc. 401(k) Plan side-by-side with 3 peers →

Aspen Aerogels, Inc. 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Massachusetts, the nearest 401(k) by assets is Kent Companies, Inc. Profit Sharing and 401(k) Savings Plan in MI ($33M); by covered participants it is Greenfield Senior Living 401(k) Plan in VA (507 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (507 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 Aspen Aerogels, Inc. 401(k) Plan assets move in 2023? ▼
Aspen Aerogels, Inc. 401(k) Plan surged - up 36.6% during 2023, from $24M to $33M. Reported net income was $9M.
How have Aspen Aerogels, Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Aspen Aerogels, Inc.'s sponsor-wide assets grew 66.5%, from $24M to $41M.
Where does Aspen Aerogels, Inc. 401(k) Plan rank by assets among Form 5500 filers? ▼
Aspen Aerogels, Inc. 401(k) Plan ranks in the 81st percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Aspen Aerogels, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Kent Companies, Inc. Profit Sharing and 401(k) Savings Plan in MI ($33M, 1,436 participants).
Which 401(k) plans cover a similar participant headcount to Aspen Aerogels, Inc. 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Greenfield Senior Living 401(k) Plan in VA (507 participants, $1M 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 043559972.

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.