401(k) · DOL Form 5500 · 2022

Trinseo LLC 401(k) Plan

Data updated 2026-08-25

$94M
Total assets Below avg plan size
402
Participants Below avg headcount
92nd
Percentile by assets National rank
$234,881
Avg per participant Above avg balance/head
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Official DOL plan name: Trinseo LLC 401(k) Plan · Sponsored by Trinseo LLC · Pennsylvania · Manufacturing

$94M in assets, 402 participants

Trinseo LLC's Trinseo LLC 401(k) Plan reported $94M in total assets and 402 participants in its 2022 DOL Form 5500 filing, ranking in the 92nd 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.

  • #18,218 in Manufacturing (20,602 peers)

Coverage in Pennsylvania

Trinseo LLC 401(k) Plan covers 402 participants in Pennsylvania, about 49% of the average Pennsylvania filer (state average ~822 per filing). Assets: $94M.

#18,218
in Manufacturing (20,602 peers)
-15.8%
assets change YoY
0.9×
vs typical plan assets (national mean)

The plan reported a net loss of $18M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

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 2022 · DOL Form 5500

$94,422,212 Top 8% higher than 92% 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

Trinseo 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. Trinseo LLC 401(k) Plan sits mid-pack in the medium band (402 participants).

DOL schedule card

Filing strip 800512509 · Trinseo LLC PY 2022 · 401(k)

Trinseo LLC 401(k) Plan · $94M · 402 · 92nd

  • EBSA $94M
  • PART 402
  • TYPE 92nd
  • NET 401(k)
  • BOOK near Downs Rachlin Martin Retirement Plan
  • VS-ST ind #18218

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

Artisan Design Group 401(k) PlanArtisan Design Group 401(k) …$94MTrinseo LLC 401(k) Plan$94MDowns Rachlin Martin Retirement PlanDowns Rachlin Martin Retirem…$94MMiron Construction, Inc. 401(k) Profit Sharing PlanMiron Construction, Inc. 401…$94MVacasa 401(k) Plan$94M
End-of-year total assets ($M) among Trinseo 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)$112M
Net Assets (End of Year)$94M
Net Income-$18M
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. -50000050000100000150000 -505101520 Total assets ($B) Participants Trinseo LLC 401(k) Plan, Total assets ($B): 0.094422212 · Participants: 402Trinseo 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
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 Downs Rachlin Martin Retirement Plan in VT ($94M); by covered participants it is Miller, Canfield, Paddock & Stone P.L.C. 401(k) Capital Accumulation Plan in MI (402 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($94M here).

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 Trinseo LLC 401(k) Plan assets move in 2022? ▼
Trinseo LLC 401(k) Plan declined sharply - down 15.8% during 2022, from $112M to $94M. Reported net income was -$18M.
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 92nd percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (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 Downs Rachlin Martin Retirement Plan in VT ($94M, 123 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 Miller, Canfield, Paddock & Stone P.L.C. 401(k) Capital Accumulation Plan in MI (402 participants, $214M 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 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.