401(k) · DOL Form 5500 · 2022

Trinseo, LLC 401(k) Plan

Data updated 2026-08-25

$34M
Total assets Below avg plan size
217
Participants Below avg headcount
84th
Percentile by assets National rank
$158,903
Avg per participant Above avg balance/head
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Official DOL plan name: Altuglas LLC 401(k) Plan · Sponsored by Trinseo, LLC · Pennsylvania · Manufacturing

$34M in assets, 217 participants

Trinseo, LLC's Altuglas LLC 401(k) Plan reported $34M in total assets and 217 participants in its 2022 DOL Form 5500 filing, ranking in the 84th 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.

  • #16,002 in Manufacturing (20,602 peers)

Coverage in Pennsylvania

Altuglas LLC 401(k) Plan covers 217 participants in Pennsylvania, about 26% of the average Pennsylvania filer (state average ~822 per filing). Assets: $34M.

#16,002
in Manufacturing (20,602 peers)
-16.3%
assets change YoY
0.3×
vs typical plan assets (national mean)

The plan reported a net loss of $7M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Altuglas LLC 401(k) Plan's outsized position by total assets

Altuglas LLC 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$34,482,030 Top 16% higher than 84% of 139,123 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 2022

Altuglas LLC 401(k) Plan among mid-size filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Altuglas LLC 401(k) Plan sits mid-pack in the medium band (217 participants).

DOL schedule card

Filing strip 853517505 · Trinseo, LLC PY 2022 · 401(k)

Altuglas LLC 401(k) Plan · $34M · 217 · 84th

  • PHOTO $34M
  • PHOTO 217
  • PHOTO 84th
  • PHOTO 401(k)
  • PHOTO near Pacific Langham 401(k) Plan
  • PHOTO ind #16002

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 Pennsylvania →

Altuglas LLC 401(k) Plan in the asset neighbourhood

Valco Instruments Restated Profit Sharing Plan TrustValco Instruments Restated P…$34MAltuglas LLC 401(k) Plan$34MPacific Langham 401(k) Plan$34MA Place for Mom, Inc. 401(k) PlanA Place for Mom, Inc. 401(k)…$34MThe Barkan Companies 401(k) PlanThe Barkan Companies 401(k) …$34M
End-of-year total assets ($M) among Altuglas LLC 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Pennsylvania filing particulars

Total Assets (Beginning of Year)$41M
Net Assets (End of Year)$34M
Net Income-$7M
Employer EIN853517505
Plan Effective Date2021-07-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Trinseo, LLC)

Sponsor-wide plan assets over time

All Trinseo, LLC plans reported in each filing year

Latest sponsor-wide plan assets
$49M 43.3807290348045% vs 2022
2024 filing year
$30M$35M$40M$45M$50M$55M 202220232024 $34.5M $49.4M ▲ +43.4%
Year Plans Participants Total Assets
2022 1 217 $34M
2023 1 236 $43M
2024 1 206 $49M

Nearby 401(k) Plans in Pennsylvania

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

Altuglas LLC 401(k) Plan vs. nearby 401(k) plans in Pennsylvania, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -505101520 Total assets ($B) Participants Altuglas LLC 401(k) Plan, Total assets ($B): 0.03448203 · Participants: 217Altuglas LLC 401(k) PlanComcast Corporation Retirement - Investment Plan, Total assets ($B): 14.751564896 · Participants: 97769Comcast Corporation Retirement - Investment PlanCigna 401(k) Plan, Total assets ($B): 11.46087279 · Participants: 66147Cigna 401(k) PlanThe PNC Financial Services Group, Inc. Incentive Savings Plan, Total assets ($B): 8.11713 · Participants: 59451The PNC Financial Services Group, Inc. Incentive Savings PlanThe Vanguard Retirement and Savings Plan, Total assets ($B): 8.097254785 · Participants: 17073The Vanguard Retirement and Savings PlanThe Bank of New York Mellon Corporation 401(k) Savings Plan, Total assets ($B): 7.823164827 · Participants: 25071The Bank of New York Mellon Corporation 401(k) Savings Plan
Altuglas LLC 401(k) Plan vs. nearby 401(k) plans in Pennsylvania, assets vs. participants
Compare Altuglas LLC 401(k) Plan side-by-side with 3 peers →

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

Outside Pennsylvania, the nearest 401(k) by assets is Pacific Langham 401(k) Plan in CA ($34M); by covered participants it is Royal Crest Dairy, Inc. 401(k) Plan in CO (217 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($34M here).

Similar participant headcount

Nearest other-state filings by covered participants (217 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Altuglas LLC 401(k) Plan assets move in 2022? ▼
Altuglas LLC 401(k) Plan declined sharply - down 16.3% during 2022, from $41M to $34M. Reported net income was -$7M.
How have Trinseo, LLC plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Trinseo, LLC's sponsor-wide assets grew 43.4%, from $34M to $49M.
Where does Altuglas LLC 401(k) Plan rank by assets among Form 5500 filers? ▼
Altuglas LLC 401(k) Plan ranks in the 84th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Altuglas LLC 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Pacific Langham 401(k) Plan in CA ($34M, 922 participants).
Which 401(k) plans cover a similar participant headcount to Altuglas LLC 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Royal Crest Dairy, Inc. 401(k) Plan in CO (217 participants, $6M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 853517505.

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.