Defined Benefit (Pension) · DOL Form 5500 · 2023

Century Aluminum Sebree Pension Plan

Data updated 2026-08-25

$63M
Total assets Below avg plan size
512
Participants Below avg headcount
88th
Percentile by assets National rank
$123,749
Avg per participant Near avg balance/head
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Official DOL plan name: Century Aluminum Sebree Hourly Pension Plan · Sponsored by Century Aluminum Sebree · Illinois · Manufacturing

$63M in assets, 512 participants

Century Aluminum Sebree's Century Aluminum Sebree Hourly Pension Plan reported $63M in total assets and 512 participants in its 2023 DOL Form 5500 filing, ranking in the 88th 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.

  • #15,351 in Manufacturing (18,722 peers)

Where Century Aluminum Sebree Hourly Pension Plan sits by assets

Century Aluminum Sebree Hourly Pension Plan sits in the top quartile of all filed plans by assets, $63M for 512 participants (~$123,749/participant), up 0.9% in 2023.

#15,351
in Manufacturing (18,722 peers)
+0.9%
assets growth YoY
0.6×
vs typical plan assets (national mean)

Century Aluminum Sebree Hourly Pension Plan's outsized position by total assets

Century Aluminum Sebree Hourly Pension Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$63,359,715 Top 12% higher than 88% of 127,068 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 2023

Century Aluminum Sebree Hourly Pension Plan among mid-size filed plans by headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Century Aluminum Sebree Hourly Pension Plan sits mid-pack in the medium band (512 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Century Aluminum Sebree Hourly Pension Plan reported net income rose from -$32M in the plan year 2022 filing to $548K in the plan year 2023 filing.
  • Century Aluminum Sebree Hourly Pension Plan reported participants fell from 533 in the plan year 2022 filing to 512 in the plan year 2023 filing.
  • Century Aluminum Sebree Hourly Pension Plan end-of-year assets rose from $63M in the plan year 2022 filing to $63M in the plan year 2023 filing.

See the national 2022→2023 release diff →

Published 5500 schedule card

Filing strip 462657599 · Century Aluminum Sebree PY 2023 · Defined Benefit (Pension)

Century Aluminum Sebree Hourly Pension Plan · $63M · 512 · 88th

  • 5500 $63M
  • 5500 512
  • 5500 88th
  • 5500 Defined Benefit (Pension)
  • 5500 near Wolf & Company, P.C. Defined Benefit Pension Plan
  • 5500 ind #15351

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 Illinois →

Century Aluminum Sebree Hourly Pension Plan in the asset neighbourhood

Transportation Communications Union Pension FundTransportation Communication…$63MCentury Aluminum Sebree Hourly Pension PlanCentury Aluminum Sebree Hour…$63MWolf & Company, P.C. Defined Benefit Pension PlanWolf & Company, P.C. Defined…$63MPhiladelphia Corporation for Aging Pension PlanPhiladelphia Corporation for…$63MElementis Global Career Reward PlanElementis Global Career Rewa…$63M
End-of-year total assets ($M) among Century Aluminum Sebree Hourly Pension Plan and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2023.

Scale-class filing particulars (2023)

Total Assets (Beginning of Year)$63M
Net Assets (End of Year)$63M
Net Income$548K
Employer EIN462657599
Plan Effective Date1973-12-31
Filing StatusFILING RECEIVED

Sponsor Plan History (Century Aluminum Sebree)

Sponsor-wide plan assets over time

All Century Aluminum Sebree plans reported in each filing year

Latest sponsor-wide plan assets
$62M 1.6555264728453427% vs 2022
2024 filing year
$61.5M$62M$62.5M$63M$63.5M$64M 202220232024 $62.8M $61.8M ▼ -1.7%
Year Plans Participants Total Assets
2022 1 533 $63M
2023 1 512 $63M
2024 1 531 $62M

Nearby Defined Benefit (Pension) Plans in Illinois

Peer Defined Benefit (Pension) plans, same state, same plan type, ranked by total assets.

Century Aluminum Sebree Hourly Pension Plan vs. nearby Defined Benefit (Pension) plans in Illinois, assets vs. participants Scatter plot of 6 data points. -200000200004000060000 -200204060 Total assets ($B) Participants Century Aluminum Sebree Hourly Pension Plan, Total assets ($B): 0.063359715 · Participants: 512Century Aluminum Sebree Hourly Pension PlanCentral States, Southeast & Southwest Areas Pension Plan, Total assets ($B): 49.680270595 · Participants: 48538Central States, Southeast & Southwest Areas Pension PlanState Farm Insurance Companies Retirement Plan for United States Employees, Total assets ($B): 35.242945747 · Participants: 45001State Farm Insurance Companies Retirement Plan for United States EmployeesUnited Food & Commercial Workers Intl Union - Industry Pension Fund, Total assets ($B): 7.965094339 · Participants: 20680United Food & Commercial Workers Intl Union - Industry Pension FundJohn Deere Pension Plan for Salaried Employees, Total assets ($B): 7.960744597 · Participants: 16346John Deere Pension Plan for Salaried EmployeesAbbott Laboratories Annuity Retirement Plan, Total assets ($B): 7.819798504 · Participants: 17382Abbott Laboratories Annuity Retirement Plan
Century Aluminum Sebree Hourly Pension Plan vs. nearby Defined Benefit (Pension) plans in Illinois, assets vs. participants
Compare Century Aluminum Sebree Hourly Pension Plan side-by-side with 3 peers →

Century Aluminum Sebree Hourly Pension Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside Illinois, the nearest Defined Benefit (Pension) by assets is Wolf & Company, P.C. Defined Benefit Pension Plan in MA ($63M); by covered participants it is Leidos Biomedical Research, Inc. Retirement Plan in MD (512 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (512 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Century Aluminum Sebree Hourly Pension Plan assets move in 2023? ▼
Century Aluminum Sebree Hourly Pension Plan held essentially flat - up 0.9% during 2023, from $63M to $63M. Reported net income was $548K.
How have Century Aluminum Sebree plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Century Aluminum Sebree's sponsor-wide assets declined 1.7%, from $63M to $62M.
Where does Century Aluminum Sebree Hourly Pension Plan rank by assets among Form 5500 filers? ▼
Century Aluminum Sebree Hourly Pension Plan ranks in the 88th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top quartile of all filed plans by assets).
Which Defined Benefit (Pension) plans are similar in size to Century Aluminum Sebree Hourly Pension Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by assets is Wolf & Company, P.C. Defined Benefit Pension Plan in MA ($63M, 195 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to Century Aluminum Sebree Hourly Pension Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is Leidos Biomedical Research, Inc. Retirement Plan in MD (512 participants, $238M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 462657599.

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.