401(k) · DOL Form 5500 · 2024

Koppers Inc. 401(k) Plan

Data updated 2026-08-25

$219M
Total assets Near avg plan size
1,214
Participants Near avg headcount
95th
Percentile by assets National rank
$180,315
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

$219M in assets, 1,214 participants

Koppers Inc.'s Employee Savings Plan of Koppers Inc and Subsidiaries reported $219M in total assets and 1,214 participants in its 2024 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.

  • #16,310 in Manufacturing (17,777 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, $219M for 1,214 participants (~$180,315/participant), up 20.0% in 2024.

#16,310
in Manufacturing (17,777 peers)
+20.0%
assets growth YoY
2.2×
vs typical plan assets (national mean)

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 2024 · DOL Form 5500

$218,902,565 Top 5% higher than 95% 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

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

Plan-year 2024 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 (1,214 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Employee Savings Plan of Koppers Inc and Subsidiaries reported net income rose from $26M in the plan year 2023 filing to $36M in the plan year 2024 filing.
  • Employee Savings Plan of Koppers Inc and Subsidiaries end-of-year assets rose from $182M in the plan year 2023 filing to $219M in the plan year 2024 filing.
  • Employee Savings Plan of Koppers Inc and Subsidiaries reported participants rose from 1,191 in the plan year 2023 filing to 1,214 in the plan year 2024 filing.

See the national 2023→2024 release diff →

EBSA filing schedule strip

Filing strip 251588399 · Koppers Inc. PY 2024 · 401(k)

Employee Savings Plan of Koppers Inc and Subsidiaries · $219M · 1,214 · 95th

  • BOY $219M
  • SCH 1,214
  • EBSA 95th
  • PART 401(k)
  • TYPE near Legal & General America, Inc. Savings Plan
  • NET ind #16310

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

Q2 Holdings, Inc. 401(k) Plan$219MGrubhub, Inc. 401(k) Retirement PlanGrubhub, Inc. 401(k) Retirem…$219MDavidson Kempner Capital Management LP 401(k) PlanDavidson Kempner Capital Man…$219MEmployee Savings Plan of Koppers Inc and SubsidiariesEmployee Savings Plan of Kop…$219MLegal & General America, Inc. Savings PlanLegal & General America, Inc…$219M
End-of-year total assets ($M) among Employee Savings Plan of Koppers Inc and Subsidiaries and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$182M
Net Assets (End of Year)$219M
Net Income$36M
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. -20000020000400006000080000100000 -50510152025 Total assets ($B) Participants Employee Savings Plan of Koppers Inc and Subsidiaries, Total assets ($B): 0.218902565 · Participants: 1214Employee Savings Plan of Koppers Inc and SubsidiariesComcast 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
Employee Savings Plan of Koppers Inc and Subsidiaries vs. nearby 401(k) plans in Pennsylvania, assets vs. participants

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 Legal & General America, Inc. Savings Plan in MD ($219M); by covered participants it is Efsc Incentive Savings Plan in MO (1,214 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($219M here).

Similar participant headcount

Nearest other-state filings by covered participants (1,214 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 Employee Savings Plan of Koppers Inc and Subsidiaries assets move in 2024?
Employee Savings Plan of Koppers Inc and Subsidiaries grew sharply - up 20.0% during 2024, from $182M to $219M. Reported net income was $36M.
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 123,622 plans that reported assets for plan year 2024 (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 Legal & General America, Inc. Savings Plan in MD ($219M, 1,156 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 Efsc Incentive Savings Plan in MO (1,214 participants, $189M in assets).