401(k) · DOL Form 5500 · 2022
Ameren Corporation 401(k) Plan
Data updated 2026-08-25
- $2.7B
- Total assets Very large vs avg
- 8,851
- Participants Very large workforce
- 100th
- Percentile by assets National rank
- $306,106
- Avg per participant High balance/head
Official DOL plan name: Ameren Corporation Savings Investment Plan · Sponsored by Ameren Corporation · Missouri · Utilities
$2.7B in assets, 8,851 participants
Ameren Corporation's Ameren Corporation Savings Investment Plan reported $2.7B in total assets and 8,851 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.
- #703 in Utilities (738 peers)
Coverage in Missouri
Ameren Corporation Savings Investment Plan covers 8,851 participants in Missouri, 12x the typical Missouri plan (state average ~737 per filing). Assets: $2.7B.
- #703
- in Utilities (738 peers)
- +17.9%
- assets growth YoY
- 27×
- vs typical plan assets (national mean)
Ameren Corporation Savings Investment Plan's outsized position by total assets
Ameren Corporation Savings Investment Plan vs every filed plan by assets
End-of-year total assets · plan year 2022 · DOL Form 5500
$2,709,348,496 Highest reported value at or above every one of 139,123 filed plans
Dashed line + filled bar = this entry, among filed plans.
Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2022
Ameren Corporation Savings Investment Plan's large-plan peer group by participant headcount
Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Ameren Corporation Savings Investment Plan lands in the large band (8,851 participants).
Form 5500 schedule snapshot
Filing strip 431723446 · Ameren Corporation PY 2022 · 401(k)
Ameren Corporation Savings Investment Plan · $2.7B · 8,851 · 100th
- NET $2.7B
- BOOK 8,851
- VS-ST 100th
- BOY 401(k)
- SCH near Xcel Energy 401(k) Savings Plan
- EBSA ind #703
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 Corporation Savings Investment Plan in the asset neighbourhood
Missouri filing particulars
| Total Assets (Beginning of Year) | $2.3B |
|---|---|
| Net Assets (End of Year) | $2.7B |
| Net Income | $422M |
| Employer EIN | 431723446 |
| Plan Effective Date | 1984-07-01 |
| 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 401(k) Plans in Missouri
Peer 401(k) plans, same state, same plan type, ranked by total assets.
- Bayer Corporation Savings and Retirement Plan $9.2B · 18,917
- Edward D. Jones & Co. Profit Sharing and 401(k) Plan $8.7B · 47,923
- Enterprise Holdings Retirement Savings Plan $4.5B · 59,568
- Centene Management Corporation Retirement Plan $3.2B · 49,060
- Anheuser-Busch 401(k) Savings and Retirement Plan $3.1B · 14,556
Scale composition for Ameren Corporation Savings Investment Plan
Ameren Corporation Savings Investment Plan reports $2.7B in end-of-year assets across 8,851 participants (0.022% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.009% of 93,925,755 covered participants) - about $306,106 per participant (2.2x the national average assets-per-participant) . Net income for plan year 2022 was $422M.
This plan identity (EIN 431723446, plan #003) has 4 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $2.7B to $3.2B (+17.5%) while covered participants moved from 9,307 to 9,504 . Single-year sparse filers cannot show that trail.
| Plan year | Participants | EOY assets | Filing |
|---|---|---|---|
| 2022 | 9,307 | $2.7B | Open filing |
| 2022 | 8,851 | $2.7B | This page |
| 2023 | 9,356 | $3.0B | Open filing |
| 2024 · index core | 9,504 | $3.2B | 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 Corporation Savings Investment Plan's out-of-state 401(k) peers by assets and headcount
Outside Missouri, the nearest 401(k) by assets is Xcel Energy 401(k) Savings Plan in MN ($2.7B); by covered participants it is Patrick Industries, Inc. 401(k) Employee Savings Plan in IN (8,854 participants). Same-state nearby plans are listed separately above.
Closest by plan assets
Nearest other-state filings by tot_assets_eoy ($2.7B here).
- Xcel Energy 401(k) Savings Plan (MN) $2.7B · 8,771
- Battelle Employees' Savings Plan (OH) $2.7B · 7,979
- Universal Health Services, Inc. Retirement Savings Plan (PA) $2.7B · 60,986
- Valero Energy Corporation Thrift Plan (TX) $2.7B · 7,979
Similar participant headcount
Nearest other-state filings by covered participants (8,851 participants); asset peers above are excluded.
- Patrick Industries, Inc. 401(k) Employee Savings Plan (IN) 8,854 · 3 off
- The University of Vermont Medical Center 403(b) Plan (VT) 8,856 · 5 off
- Teledyne Technologies Incorporated 401(k) Plan (CA) 8,860 · 9 off
- Fanatics 401(k) Retirement Plan (FL) 8,862 · 11 off
DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.