401(k) · DOL Form 5500 · 2022

Koppers Inc. 401(k) Plan

Data updated 2026-08-25

$31M
Total assets Below avg plan size
472
Participants Below avg headcount
83rd
Percentile by assets National rank
$65,509
Avg per participant Low balance/head
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Official DOL plan name: Koppers Inc. Savings Plan for Union Hourly Employees · Sponsored by Koppers Inc. · Pennsylvania · Manufacturing

$31M in assets, 472 participants

Koppers Inc.'s Koppers Inc. Savings Plan for Union Hourly Employees reported $31M in total assets and 472 participants in its 2022 DOL Form 5500 filing, ranking in the 83rd 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.

  • #15,680 in Manufacturing (20,602 peers)

Where Koppers Inc. Savings Plan for Union Hourly Employees sits by assets

Koppers Inc. Savings Plan for Union Hourly Employees sits in the top quartile of all filed plans by assets, $31M for 472 participants (~$65,509/participant), down 21.8% in 2022.

#15,680
in Manufacturing (20,602 peers)
-21.8%
assets change YoY
0.3×
vs typical plan assets (national mean)

The plan reported a net loss of $8M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Koppers Inc. Savings Plan for Union Hourly Employees's outsized position by total assets

Koppers Inc. Savings Plan for Union Hourly Employees vs every filed plan by assets

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

$30,920,358 Top 17% higher than 83% 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

Koppers Inc. Savings Plan for Union Hourly Employees 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. Koppers Inc. Savings Plan for Union Hourly Employees sits mid-pack in the medium band (472 participants).

Form 5500 schedule snapshot

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

Koppers Inc. Savings Plan for Union Hourly Employees · $31M · 472 · 83rd

  • IND $31M
  • EOY 472
  • 5500 83rd
  • ASSETS 401(k)
  • PCT near Momentum Telecom, Inc. 401(k) Plan
  • EIN ind #15680

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 →

Koppers Inc. Savings Plan for Union Hourly Employees in the asset neighbourhood

Standard Oil of Connecticut, Inc. 401(k) PlanStandard Oil of Connecticut,…$31MNortheastern Supply, Inc. 401(k) PlanNortheastern Supply, Inc. 40…$31MKoppers Inc. Savings Plan for Union Hourly EmployeesKoppers Inc. Savings Plan fo…$31MMomentum Telecom, Inc. 401(k) PlanMomentum Telecom, Inc. 401(k…$31MH&s Family of Bakeries 401(k) PlanH&s Family of Bakeries 401(k…$31M
End-of-year total assets ($M) among Koppers Inc. Savings Plan for Union Hourly Employees and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Scale-class filing particulars (2022)

Total Assets (Beginning of Year)$40M
Net Assets (End of Year)$31M
Net Income-$8M
Employer EIN251588399
Plan Effective Date1995-11-01
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.

Koppers Inc. Savings Plan for Union Hourly Employees vs. nearby 401(k) plans in Pennsylvania, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -505101520 Total assets ($B) Participants Koppers Inc. Savings Plan for Union Hourly Employees, Total assets ($B): 0.030920358 · Participants: 472Koppers Inc. Savings Plan for Union Hourly EmployeesComcast 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
Koppers Inc. Savings Plan for Union Hourly Employees vs. nearby 401(k) plans in Pennsylvania, assets vs. participants
Compare Koppers Inc. Savings Plan for Union Hourly Employees side-by-side with 3 peers →

Koppers Inc. Savings Plan for Union Hourly Employees's out-of-state 401(k) peers by assets and headcount

Outside Pennsylvania, the nearest 401(k) by assets is Momentum Telecom, Inc. 401(k) Plan in GA ($31M); by covered participants it is Advantech Corporation 401(k) Plan in CA (472 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($31M here).

Similar participant headcount

Nearest other-state filings by covered participants (472 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 Koppers Inc. Savings Plan for Union Hourly Employees assets move in 2022? ▼
Koppers Inc. Savings Plan for Union Hourly Employees declined sharply - down 21.8% during 2022, from $40M to $31M. Reported net income was -$8M.
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 Koppers Inc. Savings Plan for Union Hourly Employees rank by assets among Form 5500 filers? ▼
Koppers Inc. Savings Plan for Union Hourly Employees ranks in the 83rd percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Koppers Inc. Savings Plan for Union Hourly Employees? ▼
Among 401(k) plans in other states, the closest by assets is Momentum Telecom, Inc. 401(k) Plan in GA ($31M, 457 participants).
Which 401(k) plans cover a similar participant headcount to Koppers Inc. Savings Plan for Union Hourly Employees? ▼
Among 401(k) plans in other states, the closest by covered participants is Advantech Corporation 401(k) Plan in CA (472 participants, $62M 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.