401(k) · DOL Form 5500 · 2022

Midamerican Energy Company 401(k) Plan

Data updated 2026-08-25

$1.3B
Total assets Very large vs avg
4,986
Participants Above avg headcount
99th
Percentile by assets National rank
$257,938
Avg per participant Above avg balance/head
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Official DOL plan name: Midamerican Energy Company Retirement Savings Plan · Sponsored by Midamerican Energy Company · Iowa · Utilities

$1.3B in assets, 4,986 participants

Midamerican Energy Company's Midamerican Energy Company Retirement Savings Plan reported $1.3B in total assets and 4,986 participants in its 2022 DOL Form 5500 filing, ranking in the 99th 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.

  • #676 in Utilities (738 peers)

Coverage in Iowa

Midamerican Energy Company Retirement Savings Plan covers 4,986 participants in Iowa, 8.2x the typical Iowa plan (state average ~609 per filing). Assets: $1.3B.

#676
in Utilities (738 peers)
-18.9%
assets change YoY
13×
vs typical plan assets (national mean)

The plan reported a net loss of $302M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Midamerican Energy Company Retirement Savings Plan's outsized position by total assets

Midamerican Energy Company Retirement Savings Plan vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$1,286,079,186 Top 1% higher than 99% of 139,123 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 2022

Midamerican Energy Company Retirement Savings 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. Midamerican Energy Company Retirement Savings Plan lands in the large band (4,986 participants).

EBSA filing schedule strip

Filing strip 421425214 · Midamerican Energy Company PY 2022 · 401(k)

Midamerican Energy Company Retirement Savings Plan · $1.3B · 4,986 · 99th

  • RANK $1.3B
  • RANK 4,986
  • RANK 99th
  • RANK 401(k)
  • RANK near Masco Corporation 401(k) Plan
  • RANK ind #676

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 Iowa →

Midamerican Energy Company Retirement Savings Plan in the asset neighbourhood

Midamerican Energy Company Retirement Savings PlanMidamerican Energy Company R…$1.3BMasco Corporation 401(k) Plan$1.3BNetflix 401(k) Plan$1.3BCity National Bank Profit Sharing PlanCity National Bank Profit Sh…$1.3BCovestro LLC Savings and Retirement PlanCovestro LLC Savings and Ret…$1.3B
End-of-year total assets ($B) among Midamerican Energy Company Retirement Savings Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Iowa filing particulars

Total Assets (Beginning of Year)$1.6B
Net Assets (End of Year)$1.3B
Net Income-$302M
Employer EIN421425214
Plan Effective Date1976-08-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Midamerican Energy Company)

Sponsor-wide plan assets over time

All Midamerican Energy Company plans reported in each filing year

Latest sponsor-wide plan assets
$12.0B 575.5536742641146% vs 2022
2024 filing year
$0B$5B$10B$15B 202220232024 $1.78B $12B ▲ +574.2%
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 Scatter plot of 6 data points. 020000400006000080000 1234 Total assets ($B) Participants Midamerican Energy Company Retirement Savings Plan, Total assets ($B): 1.286079186 · Participants: 4986Midamerican Energy Company Retirement Savings PlanThe Principal Select Savings Plan, Total assets ($B): 3.613396259 · Participants: 12201The Principal Select Savings PlanIowa Health System Section 401(k) Retirement Savings Plan, Total assets ($B): 2.684422851 · Participants: 28603Iowa Health System Section 401(k) Retirement Savings PlanThe Hy-Vee and Affiliates 401(k) Plan, Total assets ($B): 2.447514997 · Participants: 59826The Hy-Vee and Affiliates 401(k) PlanThe Rsm US LLP Retirement Plan, Total assets ($B): 2.275604074 · Participants: 13793The Rsm US LLP Retirement PlanTransamerica 401(k) Retirement Savings Plan, Total assets ($B): 2.116061137 · Participants: 7262Transamerica 401(k) Retirement Savings Plan
Midamerican Energy Company Retirement Savings Plan vs. nearby 401(k) plans in Iowa, assets vs. participants

Midamerican Energy Company Retirement Savings Plan's out-of-state 401(k) peers by assets and headcount

Outside Iowa, the nearest 401(k) by assets is Masco Corporation 401(k) Plan in MI ($1.3B); by covered participants it is Smithfield Foods, Inc. Salaried 401(k) Plan in VA (4,988 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($1.3B here).

Similar participant headcount

Nearest other-state filings by covered participants (4,986 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Midamerican Energy Company Retirement Savings Plan assets move in 2022? ▼
Midamerican Energy Company Retirement Savings Plan declined sharply - down 18.9% during 2022, from $1.6B to $1.3B. Reported net income was -$302M.
How have Midamerican Energy Company plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Midamerican Energy Company's sponsor-wide assets grew 575.6%, from $1.8B to $12.0B.
Where does Midamerican Energy Company Retirement Savings Plan rank by assets among Form 5500 filers? ▼
Midamerican Energy Company Retirement Savings Plan ranks in the 99th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (among the largest 1% of all filed plans).
Which 401(k) plans are similar in size to Midamerican Energy Company Retirement Savings Plan? ▼
Among 401(k) plans in other states, the closest by assets is Masco Corporation 401(k) Plan in MI ($1.3B, 8,900 participants).
Which 401(k) plans cover a similar participant headcount to Midamerican Energy Company Retirement Savings Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Smithfield Foods, Inc. Salaried 401(k) Plan in VA (4,988 participants, $610M in assets).