Defined Benefit (Pension) · DOL Form 5500 · 2024
Koppers Inc. Pension Plan
Data updated 2026-08-25
- $89M
- Total assets Below avg plan size
- 175
- Participants Small participant base
- 90th
- Percentile by assets National rank
- $507,347
- Avg per participant High balance/head
Official DOL plan name: Koppers Inc. Retirement Plan · Sponsored by Koppers Inc. · Pennsylvania · Manufacturing
$89M in assets, 175 participants
Koppers Inc.'s Koppers Inc. Retirement Plan reported $89M in total assets and 175 participants in its 2024 DOL Form 5500 filing, ranking in the 90th 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.
- #15,054 in Manufacturing (17,777 peers)
Coverage in Pennsylvania
Koppers Inc. Retirement Plan covers 175 participants in Pennsylvania, about 21% of the average Pennsylvania filer (state average ~822 per filing). Assets: $89M.
- #15,054
- in Manufacturing (17,777 peers)
- -$5M
- reported net income
- 0.9×
- vs typical plan assets (national mean)
The plan reported a net loss of $5M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.
Koppers Inc. Retirement Plan's outsized position by total assets
Koppers Inc. Retirement Plan vs every filed plan by assets
End-of-year total assets · plan year 2024 · DOL Form 5500
$88,785,774 Top 10% higher than 90% of 123,620 filed plans
Dashed line + filled bar = this entry, among filed plans.
Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2024
Koppers Inc. Retirement 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. Koppers Inc. Retirement Plan sits mid-pack in the medium band (175 participants).
DOL schedule card
Filing strip 251588399 · Koppers Inc. PY 2024 · Defined Benefit (Pension)
Koppers Inc. Retirement Plan · $89M · 175 · 90th
- NET $89M
- NET 175
- NET 90th
- NET Defined Benefit (Pension)
- NET near Marine Carpenters Pension Fund
- NET ind #15054
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. Retirement Plan in the asset neighbourhood
Pennsylvania filing particulars
| Total Assets (Beginning of Year) | N/A |
|---|---|
| Net Assets (End of Year) | $89M |
| Net Income | -$5M |
| Employer EIN | 251588399 |
| Plan Effective Date | 2024-07-15 |
| Filing Status | FILING 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
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 3 | 1,773 | $281M |
| 2023 | 3 | 1,900 | $315M |
| 2024 | 4 | 2,099 | $352M |
Nearby Defined Benefit (Pension) Plans in Pennsylvania
Peer Defined Benefit (Pension) plans, same state, same plan type, ranked by total assets.
- National Elevator Industry Pension Plan $12.2B · 28,308
- Steelworkers Pension Trust $7.2B · 46,110
- The PNC Financial Services Group, Inc. Pension Plan $5.5B · 58,779
- The Bank of New York Mellon Corporation Pension Plan $5.2B · 6,387
- Constellation Retirement Program $5.0B · 4,809
Koppers Inc. Retirement Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount
Outside Pennsylvania, the nearest Defined Benefit (Pension) by assets is Marine Carpenters Pension Fund in CA ($89M); by covered participants it is Dentons US LLP Cash Balance Plan in IL (175 participants). Same-state nearby plans are listed separately above.
Closest by plan assets
Nearest other-state filings by tot_assets_eoy ($89M here).
- Marine Carpenters Pension Fund (CA) $89M · 161
- SEIU Local No. 4 Pension Fund (IL) $89M · 8,277
- Employers' - Warehousemen's Pension Trust Fund (CA) $89M · 216
- Society for Human Resource Management Pension Plan and Trust (VA) $89M · 300
Similar participant headcount
Nearest other-state filings by covered participants (175 participants); asset peers above are excluded.
- Dentons US LLP Cash Balance Plan (IL) 175 · 0 off
- Okuma America Corporation Pension Plan (NC) 175 · 0 off
- Major League Baseball Pension Plan for Non-Uniformed Personnel (FL) 175 · 0 off
- Beverage Distribution Pension Plan (NY) 175 · 0 off
DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.