Defined Benefit (Pension) · DOL Form 5500 · 2022
Ameren Corporation Pension Plan
Data updated 2026-08-06
- $4.4B
- Total assets
- 10,080
- Participants
- 100th
- Percentile by assets
- $440,711
- Avg per participant
Official DOL plan name: Ameren Retirement Plan · Sponsored by Ameren Corporation · Missouri · Utilities
$4.4B in assets, 10,080 participants
Ameren Corporation's Ameren Retirement Plan reported $4.4B in total assets and 10,080 participants in its 2022 DOL Form 5500 filing, ranking in the 100th 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.
- 100th percentile by assets (of 139,258 plans)
- #717 in Utilities (739 peers)
Coverage in Missouri
Ameren Retirement Plan covers 10,080 participants in Missouri, 13x the typical Missouri plan (state average ~756 per filing). Assets: $4.4B.
- $4.4B
- total plan assets (2022 EOY)
- 10,080
- covered participants
- 100th
- percentile by assets (of 139,258 plans)
- $440,711
- avg assets per participant
The plan reported a net loss of $1.8B for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.
Participants vs Missouri filers
In Missouri, the average filing covers about 756 participants across 2,155 plans. Ameren Retirement Plan reports 10,080 participants - 13x that state average ($4.4B EOY assets).
Missouri filing particulars
| Total Assets (Beginning of Year) | $6.3B |
|---|---|
| Net Assets (End of Year) | $4.2B |
| Net Income | -$1.8B |
| Employer EIN | 431723446 |
| Plan Effective Date | 1941-01-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Ameren Corporation)
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 3 | 28,238 | $9.9B |
| 2023 | 2 | 19,512 | $7.7B |
| 2024 | 2 | 19,264 | $8.0B |
Nearby Defined Benefit (Pension) Plans in Missouri
Peer Defined Benefit (Pension) plans, same state, same plan type, ranked by total assets.
Ameren Retirement Plan vs. nearby Defined Benefit (Pension) plans in Missouri, assets vs. participants
- Boilermaker-Blacksmith National Pension Trust $7.5B · 31,010
- Co-Op Retirement Plan $3.4B · 15,460
- Carpenters Pension Trust Fund of St. Louis $3.3B · 8,767
- Emerson Electric Company Retirement Plan $3.1B · 4,763
- Bjc Pension Plan $2.8B · 19,132
Scale composition for Ameren Retirement Plan
Ameren Retirement Plan reports $4.4B in end-of-year assets across 10,080 participants (0.038% of the $11.6T held by all Form 5500 filers in the national rollup , and 0.011% of 89,805,449 covered participants) - about $440,711 per participant (3.2x the national average assets-per-participant) . Net income for plan year 2022 was -$1.8B.
This plan identity (EIN 431723446, plan #005) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $4.4B to $4.8B (+8.0%) while covered participants moved from 10,080 to 9,760 . Single-year sparse filers cannot show that trail.
| Plan year | Participants | EOY assets | Filing |
|---|---|---|---|
| 2022 | 10,080 | $4.4B | This page |
| 2023 | 10,156 | $4.7B | Open filing |
| 2024 · index core | 9,760 | $4.8B | Open filing |
The same sponsor also keeps 2 other index-core plans on PlainRetire:
- Ameren Retirement Plan (Defined Benefit (Pension), $4.8B, 9,760 participants)
- Ameren Corporation Savings Investment Plan (401(k), $3.2B, 9,504 participants)
Similar-Sized Defined Benefit (Pension) Plans Nationally
Defined Benefit (Pension) plans in other states closest to Ameren Retirement Plan by total assets, not by location.
- Lucent Technologies Inc. Pension Plan (NJ) $4.4B · N/A
- Pension, Hospitalization & Benefit Plan of the Electrical Industry - Pension Trust Acct (NY) $4.4B · 17,040
- Allstate Retirement Plan (TX) $4.4B · 26,157
- The Coca-Cola Company Pension Plan (GA) $4.4B · 7,010
Frequently Asked Questions
How did Ameren Retirement Plan assets move in 2022? ▼
How have Ameren Corporation plan assets changed over time? ▼
Where does Ameren Retirement Plan rank by assets among Form 5500 filers? ▼
Which Defined Benefit (Pension) plans are similar in size to Ameren Retirement Plan? ▼
Next read for Ameren Retirement Plan
Filing takeaways
Ways to act on Ameren Retirement Plan's numbers.
- By total assets, Ameren Retirement Plan ranks among the largest 1% of all filed plans. See the largest plans
- Compare it side-by-side against 3 similar Defined Benefit (Pension) plans in Missouri. Compare plans
- Ameren Corporation's sponsor-wide assets have declined 19.0% since 2022 across 3 plan years on file. More Utilities plans