401(k) · DOL Form 5500 · 2024
Midamerican Energy Company 401(k) Plan
Data updated 2026-08-11
- $964M
- Total assets
- 5,086
- Participants
- 98th
- Percentile by assets
- $189,513
- Avg per participant
Official DOL plan name: Midamerican Energy Company Retirement Savings Plan · Sponsored by Midamerican Energy Company · Iowa · Utilities
$964M in assets, 5,086 participants
Midamerican Energy Company's Midamerican Energy Company Retirement Savings Plan reported $964M in total assets and 5,086 participants in its 2024 DOL Form 5500 filing, ranking in the 98th 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.
- 98th percentile by assets (of 123,622 plans)
- #637 in Utilities (732 peers)
Coverage in Iowa
Midamerican Energy Company Retirement Savings Plan covers 5,086 participants in Iowa, 8.4x the typical Iowa plan (state average ~609 per filing). Assets: $964M.
- $964M
- total plan assets (2024 EOY)
- 5,086
- covered participants
- 98th
- percentile by assets (of 123,622 plans)
- $189,513
- avg assets per participant
The plan reported a net loss of $45M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.
What changed between DOL Form 5500 filings
plan year 2023 → plan year 2024
- Midamerican Energy Company Retirement Savings Plan reported net income fell from $282M in the plan year 2023 filing to -$45M in the plan year 2024 filing.
- Midamerican Energy Company Retirement Savings Plan end-of-year assets fell from $1.7B in the plan year 2023 filing to $964M in the plan year 2024 filing.
- Midamerican Energy Company Retirement Savings Plan reported participants rose from 5,056 in the plan year 2023 filing to 5,086 in the plan year 2024 filing.
Participants vs Iowa filers
In Iowa, the average filing covers about 609 participants across 1,246 plans. Midamerican Energy Company Retirement Savings Plan reports 5,086 participants - 8.4x that state average ($964M EOY assets).
Iowa filing particulars
| Total Assets (Beginning of Year) | $1.0B |
|---|---|
| Net Assets (End of Year) | $964M |
| Net Income | -$45M |
| Employer EIN | 421425214 |
| Plan Effective Date | 1976-08-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Midamerican Energy Company)
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 2 | 8,307 | $1.8B |
| 2023 | 2 | 8,058 | $2.2B |
| 2024 | 10 | 49,803 | $12.0B |
Nearby 401(k) Plans in Iowa
Peer 401(k) plans, same state, same plan type, ranked by total assets.
Midamerican Energy Company Retirement Savings Plan vs. nearby 401(k) plans in Iowa, assets vs. participants
- The Principal Select Savings Plan $4.6B · 12,841
- The Rsm US LLP Retirement Plan $3.4B · 14,728
- Iowa Health System Section 401(k) Retirement Savings Plan $3.3B · 25,072
- The Hy-Vee and Affiliates 401(k) Plan $3.1B · 55,411
- Transamerica 401(k) Retirement Savings Plan $2.7B · 8,059
Scale composition for Midamerican Energy Company Retirement Savings Plan
Midamerican Energy Company Retirement Savings Plan reports $964M in end-of-year assets across 5,086 participants (0.008% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.005% of 93,925,755 covered participants) - about $189,513 per participant (1.4x the national average assets-per-participant) . Net income for plan year 2024 was -$45M.
This plan identity (EIN 421425214, plan #002) has 11 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $1.3B to $2.0B (+54.3%) while covered participants moved from 4,986 to 6,813 . Single-year sparse filers cannot show that trail.
| Plan year | Participants | EOY assets | Filing |
|---|---|---|---|
| 2022 | 4,986 | $1.3B | Open filing |
| 2023 | 5,056 | $1.7B | Open filing |
| 2024 | 5,055 | $1.4B | Open filing |
| 2024 | 4,976 | $1.1B | Open filing |
| 2024 | 4,964 | $1.6B | Open filing |
| 2024 | 5,056 | $1.0B | Open filing |
| 2024 | 5,086 | $964M | This page |
| 2024 | 5,052 | $1.3B | Open filing |
| 2024 | 5,020 | $1.0B | Open filing |
| 2024 | 4,976 | $1.1B | Open filing |
| 2024 · index core | 6,813 | $2.0B | Open filing |
The same sponsor also keeps 2 other index-core plans on PlainRetire:
- Midamerican Energy Company Retirement Savings Plan (401(k), $2.0B, 6,813 participants)
- Midamerican Energy Company Retirement Plan (Defined Benefit (Pension), $521M, 2,805 participants)
Similar-Sized 401(k) Plans Nationally
401(k) plans in other states closest to Midamerican Energy Company Retirement Savings Plan by total assets, not by location.
- Daiichi Sankyo, Inc. Savings and Retirement Plan (NJ) $964M · 2,049
- Dte Electric Company Savings and Stock Ownership Plan for Employees Represented by Local 223 of the Utility Workers Union of America (MI) $963M · 3,556
- Chemours Company Retirement Savings Plan (DE) $965M · 4,180
- Travel + Leisure Co. Employee Savings Plan (FL) $963M · 14,490
Frequently Asked Questions
How did Midamerican Energy Company Retirement Savings Plan assets move in 2024? ▼
How have Midamerican Energy Company plan assets changed over time? ▼
Where does Midamerican Energy Company Retirement Savings Plan rank by assets among Form 5500 filers? ▼
Which 401(k) plans are similar in size to Midamerican Energy Company Retirement Savings Plan? ▼
Next read for Midamerican Energy Company Retirement Sa…
Filing takeaways
Ways to act on Midamerican Energy Company Retirement Savings Plan's numbers.
- By total assets, Midamerican Energy Company Retirement Savings Plan ranks in the top 5% of all filed plans by assets. See the largest plans
- Compare it side-by-side against 3 similar 401(k) plans in Iowa. Compare plans
- Midamerican Energy Company's sponsor-wide assets have grown 575.6% since 2022 across 3 plan years on file. More Utilities plans