401(k) · DOL Form 5500 · 2024

Trinseo, LLC 401(k) Plan

Data updated 2026-08-25

$152M
Total assets Near avg plan size
562
Participants Below avg headcount
93rd
Percentile by assets National rank
$270,502
Avg per participant High balance/head
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Official DOL plan name: Trinseo LLC 401(k) Plan · Sponsored by Trinseo, LLC · Pennsylvania · Manufacturing

$152M in assets, 562 participants

Trinseo, LLC's Trinseo LLC 401(k) Plan reported $152M in total assets and 562 participants in its 2024 DOL Form 5500 filing, ranking in the 93rd 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.

  • #15,909 in Manufacturing (17,777 peers)

Where Trinseo LLC 401(k) Plan sits by assets

Trinseo LLC 401(k) Plan sits in the top 10% of all filed plans by assets, $152M for 562 participants (~$270,502/participant), up 10.7% in 2024.

#15,909
in Manufacturing (17,777 peers)
+10.7%
assets growth YoY
1.5×
vs typical plan assets (national mean)

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

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

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

$152,022,146 Top 7% higher than 93% 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

Trinseo LLC 401(k) Plan 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. Trinseo LLC 401(k) Plan sits mid-pack in the medium band (562 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Trinseo LLC 401(k) Plan reported participants rose from 391 in the plan year 2023 filing to 562 in the plan year 2024 filing.
  • Trinseo LLC 401(k) Plan reported net income fell from $21M in the plan year 2023 filing to $15M in the plan year 2024 filing.
  • Trinseo LLC 401(k) Plan end-of-year assets rose from $137M in the plan year 2023 filing to $152M in the plan year 2024 filing.

See the national 2023→2024 release diff →

Published 5500 schedule card

Filing strip 800512509 · Trinseo, LLC PY 2024 · 401(k)

Trinseo LLC 401(k) Plan · $152M · 562 · 93rd

  • VS-ST $152M
  • BOY 562
  • SCH 93rd
  • EBSA 401(k)
  • PART near Orthopedic One, Inc. 401(k) Plan
  • TYPE ind #15909

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 →

Trinseo LLC 401(k) Plan in the asset neighbourhood

Sram LLC Retirement Savings PlanSram LLC Retirement Savings …$152MPro-Tec Coating Company 401(k) Retirement PlanPro-Tec Coating Company 401(…$152MTrinseo LLC 401(k) Plan$152MOrthopedic One, Inc. 401(k) PlanOrthopedic One, Inc. 401(k) …$152MAvl North America, Inc. 401(k) PlanAvl North America, Inc. 401(…$152M
End-of-year total assets ($M) among Trinseo LLC 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$137M
Net Assets (End of Year)$152M
Net Income$15M
Employer EIN800512509
Plan Effective Date2010-06-17
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
$152M 61.00252554981449% vs 2022
2024 filing year
$80M$100M$120M$140M$160M 202220232024 $94.4M $152M ▲ +61.0%
Year Plans Participants Total Assets
2022 1 402 $94M
2023 1 391 $137M
2024 1 562 $152M

Nearby 401(k) Plans in Pennsylvania

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

Trinseo LLC 401(k) Plan vs. nearby 401(k) plans in Pennsylvania, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000100000 -50510152025 Total assets ($B) Participants Trinseo LLC 401(k) Plan, Total assets ($B): 0.152022146 · Participants: 562Trinseo LLC 401(k) PlanComcast Corporation Retirement - Investment Plan, Total assets ($B): 19.687957793 · Participants: 90495Comcast Corporation Retirement - Investment PlanThe Cigna Group 401(k) Plan, Total assets ($B): 14.20308608 · Participants: 63634The Cigna Group 401(k) PlanThe Vanguard Retirement and Savings Plan, Total assets ($B): 11.084818612 · Participants: 18066The Vanguard Retirement and Savings PlanThermo Fisher Scientific Inc. 401(k) Retirement Plan, Total assets ($B): 10.263366209 · Participants: 36150Thermo Fisher Scientific Inc. 401(k) Retirement PlanThe PNC Financial Services Group, Inc. Incentive Savings Plan, Total assets ($B): 10.189629 · Participants: 54604The PNC Financial Services Group, Inc. Incentive Savings Plan
Trinseo LLC 401(k) Plan vs. nearby 401(k) plans in Pennsylvania, assets vs. participants
Compare Trinseo LLC 401(k) Plan side-by-side with 3 peers →

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

Outside Pennsylvania, the nearest 401(k) by assets is Orthopedic One, Inc. 401(k) Plan in OH ($152M); by covered participants it is Word & Brown 401(k) Retirement Plan in CA (562 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($152M here).

Similar participant headcount

Nearest other-state filings by covered participants (562 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 Trinseo LLC 401(k) Plan assets move in 2024? ▼
Trinseo LLC 401(k) Plan grew at a solid clip - up 10.7% during 2024, from $137M to $152M. Reported net income was $15M.
How have Trinseo, LLC plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Trinseo, LLC's sponsor-wide assets grew 61.0%, from $94M to $152M.
Where does Trinseo LLC 401(k) Plan rank by assets among Form 5500 filers? ▼
Trinseo LLC 401(k) Plan ranks in the 93rd percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 10% of all filed plans by assets).
Which 401(k) plans are similar in size to Trinseo LLC 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Orthopedic One, Inc. 401(k) Plan in OH ($152M, 722 participants).
Which 401(k) plans cover a similar participant headcount to Trinseo LLC 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Word & Brown 401(k) Retirement Plan in CA (562 participants, $94M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 800512509.

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.