Defined Benefit (Pension) · DOL Form 5500 · 2023
Ameren Corporation Pension Plan
Data updated 2026-08-25
- $4.7B
- Total assets Very large vs avg
- 10,156
- Participants Very large workforce
- 100th
- Percentile by assets National rank
- $463,742
- Avg per participant High balance/head
Official DOL plan name: Ameren Retirement Plan · Sponsored by Ameren Corporation · Missouri · Utilities
$4.7B in assets, 10,156 participants
Ameren Corporation's Ameren Retirement Plan reported $4.7B in total assets and 10,156 participants in its 2023 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.
- #699 in Utilities (721 peers)
Coverage in Missouri
Ameren Retirement Plan covers 10,156 participants in Missouri, 14x the typical Missouri plan (state average ~737 per filing). Assets: $4.7B.
- #699
- in Utilities (721 peers)
- +6.0%
- assets growth YoY
- 47×
- vs typical plan assets (national mean)
Ameren Retirement Plan's outsized position by total assets
Ameren Retirement Plan vs every filed plan by assets
End-of-year total assets · plan year 2023 · DOL Form 5500
$4,709,766,277 Highest reported value at or above every one of 127,068 filed plans
Dashed line + filled bar = this entry, among filed plans.
Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023
Ameren Retirement Plan's mega-plan peer group by participant headcount
Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Ameren Retirement Plan is a mega filing (10,156 participants), the rightmost band on the breakdown.
What changed between DOL Form 5500 filings
plan year 2022 → plan year 2023
- Ameren Retirement Plan reported net income rose from -$1.8B in the plan year 2022 filing to $266M in the plan year 2023 filing.
- Ameren Retirement Plan end-of-year assets rose from $4.4B in the plan year 2022 filing to $4.7B in the plan year 2023 filing.
- Ameren Retirement Plan reported participants rose from 10,080 in the plan year 2022 filing to 10,156 in the plan year 2023 filing.
Published 5500 schedule card
Filing strip 431723446 · Ameren Corporation PY 2023 · Defined Benefit (Pension)
Ameren Retirement Plan · $4.7B · 10,156 · 100th
- PHOTO $4.7B
- IND 10,156
- EOY 100th
- 5500 Defined Benefit (Pension)
- ASSETS near The Southern California Edison Company Retirement Plan
- PCT ind #699
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 Utilities retirement plans → · Plans in Missouri →
Ameren Retirement Plan in the asset neighbourhood
Missouri filing particulars
| Total Assets (Beginning of Year) | $4.4B |
|---|---|
| Net Assets (End of Year) | $4.5B |
| Net Income | $266M |
| Employer EIN | 431723446 |
| Plan Effective Date | 1941-01-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Ameren Corporation)
Sponsor-wide plan assets over time
All Ameren Corporation plans reported in each filing year
- Latest sponsor-wide plan assets
- $8.0B 18.962225529961195% vs 2022
- 2024 filing year
| 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.
- Boilermaker-Blacksmith National Pension Trust $7.8B · 30,358
- Co-Op Retirement Plan $3.5B · 14,993
- Emerson Electric Company Retirement Plan $3.4B · 2,671
- Carpenters Pension Trust Fund of St. Louis $3.3B · 11,420
- Bjc Pension Plan $2.8B · 19,553
Scale composition for Ameren Retirement Plan
Ameren Retirement Plan reports $4.7B in end-of-year assets across 10,156 participants (0.038% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.011% of 93,925,755 covered participants) - about $463,742 per participant (3.4x the national average assets-per-participant) . Net income for plan year 2023 was $266M.
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 | Open filing |
| 2023 | 10,156 | $4.7B | This page |
| 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)
Ameren Retirement Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount
Outside Missouri, the nearest Defined Benefit (Pension) by assets is The Southern California Edison Company Retirement Plan in CA ($4.7B); by covered participants it is The Tjx Companies, Inc Retirement Plan in MA (10,130 participants). Same-state nearby plans are listed separately above.
Closest by plan assets
Nearest other-state filings by tot_assets_eoy ($4.7B here).
- The Southern California Edison Company Retirement Plan (CA) $4.7B · 9,551
- Usaa Pension Plan (TX) $4.7B · 31,427
- Eastern Atlantic States Carpenters Pension Fund (PA) $4.7B · 11,775
- Lumen Combined Pension Plan (LA) $4.8B · 10,804
Similar participant headcount
Nearest other-state filings by covered participants (10,156 participants); asset peers above are excluded.
- The Tjx Companies, Inc Retirement Plan (MA) 10,130 · 26 off
- Massachusetts Laborers' Pension Fund (MA) 10,116 · 40 off
- Club Pension Plan (CA) 10,111 · 45 off
- Ford Motor Company General Retirement Plan (MI) 10,215 · 59 off
DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.