401(k) · DOL Form 5500 · 2022

Koppers Inc. 401(k) Plan

Data updated 2026-08-25

$156M
Total assets Near avg plan size
1,020
Participants Near avg headcount
95th
Percentile by assets National rank
$153,345
Avg per participant Above avg balance/head
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Official DOL plan name: Employee Savings Plan of Koppers Inc and Subsidiaries · Sponsored by Koppers Inc. · Pennsylvania · Manufacturing

$156M in assets, 1,020 participants

Koppers Inc.'s Employee Savings Plan of Koppers Inc and Subsidiaries reported $156M in total assets and 1,020 participants in its 2022 DOL Form 5500 filing, ranking in the 95th 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.

  • #18,916 in Manufacturing (20,602 peers)

Where Employee Savings Plan of Koppers Inc and Subsidiaries sits by assets

Employee Savings Plan of Koppers Inc and Subsidiaries sits in the top 5% of all filed plans by assets, $156M for 1,020 participants (~$153,345/participant), down 16.4% in 2022.

#18,916
in Manufacturing (20,602 peers)
-16.4%
assets change YoY
1.6×
vs typical plan assets (national mean)

The plan reported a net loss of $31M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Employee Savings Plan of Koppers Inc and Subsidiaries's outsized position by total assets

Employee Savings Plan of Koppers Inc and Subsidiaries vs every filed plan by assets

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

$156,412,191 Top 5% higher than 95% 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

Employee Savings Plan of Koppers Inc and Subsidiaries's large-plan peer group by participant headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Employee Savings Plan of Koppers Inc and Subsidiaries lands in the large band (1,020 participants).

DOL schedule card

Filing strip 251588399 · Koppers Inc. PY 2022 · 401(k)

Employee Savings Plan of Koppers Inc and Subsidiaries · $156M · 1,020 · 95th

  • PCT $156M
  • EIN 1,020
  • RANK 95th
  • PHOTO 401(k)
  • IND near Bowman and Brooke LLP Retirement Savings Plan
  • EOY ind #18916

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 →

Employee Savings Plan of Koppers Inc and Subsidiaries in the asset neighbourhood

American Sugar Salary Savings and Investment PlanAmerican Sugar Salary Saving…$157MEmployee Savings Plan of Koppers Inc and SubsidiariesEmployee Savings Plan of Kop…$156MBowman and Brooke LLP Retirement Savings PlanBowman and Brooke LLP Retire…$156MHoriba Instruments Incorporated 401(k) PlanHoriba Instruments Incorpora…$156MW. B. Mason Company Retirement 401(k) Plan & TrustW. B. Mason Company Retireme…$156M
End-of-year total assets ($M) among Employee Savings Plan of Koppers Inc and Subsidiaries and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Scale-class filing particulars (2022)

Total Assets (Beginning of Year)$187M
Net Assets (End of Year)$156M
Net Income-$31M
Employer EIN251588399
Plan Effective Date1989-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Koppers Inc.)

Sponsor-wide plan assets over time

All Koppers Inc. plans reported in each filing year

Latest sponsor-wide plan assets
$352M 25.33729413155118% vs 2022
2024 filing year
$250M$300M$350M$400M 202220232024 $281M $352M ▲ +25.3%
Year Plans Participants Total Assets
2022 3 1,773 $281M
2023 3 1,900 $315M
2024 4 2,099 $352M

Nearby 401(k) Plans in Pennsylvania

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

Employee Savings Plan of Koppers Inc and Subsidiaries vs. nearby 401(k) plans in Pennsylvania, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -505101520 Total assets ($B) Participants Employee Savings Plan of Koppers Inc and Subsidiaries, Total assets ($B): 0.156412191 · Participants: 1020Employee Savings Plan of Koppers Inc and SubsidiariesComcast 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
Employee Savings Plan of Koppers Inc and Subsidiaries vs. nearby 401(k) plans in Pennsylvania, assets vs. participants
Compare Employee Savings Plan of Koppers Inc and Subsidiaries side-by-side with 3 peers →

Employee Savings Plan of Koppers Inc and Subsidiaries's out-of-state 401(k) peers by assets and headcount

Outside Pennsylvania, the nearest 401(k) by assets is Bowman and Brooke LLP Retirement Savings Plan in MN ($156M); by covered participants it is Aldo US, Inc. Savings and Investment Plan in (1,020 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (1,020 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 Employee Savings Plan of Koppers Inc and Subsidiaries assets move in 2022? ▼
Employee Savings Plan of Koppers Inc and Subsidiaries declined sharply - down 16.4% during 2022, from $187M to $156M. Reported net income was -$31M.
How have Koppers Inc. plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Koppers Inc.'s sponsor-wide assets grew 25.3%, from $281M to $352M.
Where does Employee Savings Plan of Koppers Inc and Subsidiaries rank by assets among Form 5500 filers? ▼
Employee Savings Plan of Koppers Inc and Subsidiaries ranks in the 95th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Employee Savings Plan of Koppers Inc and Subsidiaries? ▼
Among 401(k) plans in other states, the closest by assets is Bowman and Brooke LLP Retirement Savings Plan in MN ($156M, 440 participants).
Which 401(k) plans cover a similar participant headcount to Employee Savings Plan of Koppers Inc and Subsidiaries? ▼
Among 401(k) plans in other states, the closest by covered participants is Aldo US, Inc. Savings and Investment Plan in (1,020 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 251588399.

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.