401(k) · DOL Form 5500 · 2023

Trinseo, LLC 401(k) Plan

Data updated 2026-08-25

$43M
Total assets Below avg plan size
236
Participants Below avg headcount
84th
Percentile by assets National rank
$183,196
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

$43M in assets, 236 participants

Trinseo, LLC's Altuglas LLC 401(k) Plan reported $43M in total assets and 236 participants in its 2023 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.

  • #14,424 in Manufacturing (18,722 peers)

Coverage in Pennsylvania

Altuglas LLC 401(k) Plan covers 236 participants in Pennsylvania, about 29% of the average Pennsylvania filer (state average ~822 per filing). Assets: $43M.

#14,424
in Manufacturing (18,722 peers)
+25.4%
assets growth YoY
0.4×
vs typical plan assets (national mean)

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 2023 · DOL Form 5500

$43,234,281 Top 16% higher than 84% 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

Altuglas LLC 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. Altuglas LLC 401(k) Plan sits mid-pack in the medium band (236 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Altuglas LLC 401(k) Plan reported net income rose from -$7M in the plan year 2022 filing to $9M in the plan year 2023 filing.
  • Altuglas LLC 401(k) Plan end-of-year assets rose from $34M in the plan year 2022 filing to $43M in the plan year 2023 filing.
  • Altuglas LLC 401(k) Plan reported participants rose from 217 in the plan year 2022 filing to 236 in the plan year 2023 filing.

See the national 2022→2023 release diff →

Published 5500 schedule card

Filing strip 853517505 · Trinseo, LLC PY 2023 · 401(k)

Altuglas LLC 401(k) Plan · $43M · 236 · 84th

  • TYPE $43M
  • NET 236
  • BOOK 84th
  • VS-ST 401(k)
  • BOY near L.E. Jones Company 401(k) Plan
  • SCH ind #14424

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

Abbott Capital Management, LLC Employees' Profit Sharing Plan & TrustAbbott Capital Management, L…$43MHaley Ward Employee Stock Ownership 401(k) PlanHaley Ward Employee Stock Ow…$43MSuperior Beverage Group 401(k) Retirement Savings PlanSuperior Beverage Group 401(…$43MAltuglas LLC 401(k) Plan$43ML.E. Jones Company 401(k) PlanL.E. Jones Company 401(k) Pl…$43M
End-of-year total assets ($M) among Altuglas LLC 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Pennsylvania filing particulars

Total Assets (Beginning of Year)$34M
Net Assets (End of Year)$43M
Net Income$9M
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. -50000050000100000 -505101520 Total assets ($B) Participants Altuglas LLC 401(k) Plan, Total assets ($B): 0.043234281 · Participants: 236Altuglas LLC 401(k) PlanComcast Corporation Retirement - Investment Plan, Total assets ($B): 17.368669862 · Participants: 93136Comcast Corporation Retirement - Investment PlanCigna 401(k) Plan, Total assets ($B): 13.003870935 · Participants: 66760Cigna 401(k) PlanThe Vanguard Retirement and Savings Plan, Total assets ($B): 9.765617477 · Participants: 18200The Vanguard Retirement and Savings PlanThe PNC Financial Services Group, Inc. Incentive Savings Plan, Total assets ($B): 9.339762 · Participants: 61697The PNC Financial Services Group, Inc. Incentive Savings PlanThe Bank of New York Mellon Corporation 401(k) Savings Plan, Total assets ($B): 8.955655142 · Participants: 25184The 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 L.E. Jones Company 401(k) Plan in MI ($43M); by covered participants it is Cap Government Retirement Plan in FL (236 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (236 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 Altuglas LLC 401(k) Plan assets move in 2023? ▼
Altuglas LLC 401(k) Plan grew sharply - up 25.4% during 2023, from $34M to $43M. Reported net income was $9M.
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 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 Altuglas LLC 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is L.E. Jones Company 401(k) Plan in MI ($43M, 450 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 Cap Government Retirement Plan in FL (236 participants, N/A 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 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.