401(k) · DOL Form 5500 · 2023

Air Wisconsin Airlines LLC 401(k) Plan

Data updated 2026-08-25

$26M
Total assets Below avg plan size
110
Participants Small participant base
77th
Percentile by assets National rank
$233,905
Avg per participant Above avg balance/head
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Official DOL plan name: Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust · Sponsored by Air Wisconsin Airlines LLC · Wisconsin · Transportation & Warehousing

$26M in assets, 110 participants

Air Wisconsin Airlines LLC's Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust reported $26M in total assets and 110 participants in its 2023 DOL Form 5500 filing, ranking in the 77th 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.

  • #2,547 in Transportation & Warehousing (3,362 peers)

Coverage in Wisconsin

Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust covers 110 participants in Wisconsin, about 20% of the average Wisconsin filer (state average ~563 per filing). Assets: $26M.

#2,547
in Transportation & Warehousing (3,362 peers)
-0.9%
assets change YoY
0.3×
vs typical plan assets (national mean)

The plan reported a net loss of $238K for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust's outsized position by total assets

Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$25,729,589 Top 23% higher than 77% of 127,068 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 2023

Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust among mid-size filed plans by headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust sits mid-pack in the medium band (110 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust reported net income rose from -$7M in the plan year 2022 filing to -$238K in the plan year 2023 filing.
  • Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust reported participants fell from 135 in the plan year 2022 filing to 110 in the plan year 2023 filing.
  • Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust end-of-year assets fell from $26M in the plan year 2022 filing to $26M in the plan year 2023 filing.

See the national 2022→2023 release diff →

EBSA filing schedule strip

Filing strip 391767281 · Air Wisconsin Airlines LLC PY 2023 · 401(k)

Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust · $26M · 110 · 77th

  • EIN $26M
  • EIN 110
  • EIN 77th
  • EIN 401(k)
  • EIN near Ultisat Inc. 401(k) Plan
  • EIN ind #2547

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 Transportation & Warehousing retirement plans → · Plans in Wisconsin →

Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust in the asset neighbourhood

Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and TrustIamaw Local No. 2575 - Air W…$26MUltisat Inc. 401(k) Plan$26MCentral New York Cardiology, P.C. 401(k) Savings PlanCentral New York Cardiology,…$26MPlanters Bank Employee Stock Ownership and 401(k) Retirement Savings PlanPlanters Bank Employee Stock…$26MGastro Florida 401(k)Plan$26M
End-of-year total assets ($M) among Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2023.

Wisconsin filing particulars

Total Assets (Beginning of Year)$26M
Net Assets (End of Year)$26M
Net Income-$238K
Employer EIN391767281
Plan Effective Date1985-09-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Air Wisconsin Airlines LLC)

Sponsor-wide plan assets over time

All Air Wisconsin Airlines LLC plans reported in each filing year

Latest sponsor-wide plan assets
$214M 11.444959787925333% vs 2022
2024 filing year
$180M$190M$200M$210M$220M 202220232024 $192M $214M ▲ +11.4%
Year Plans Participants Total Assets
2022 4 1,163 $192M
2023 4 1,045 $203M
2024 4 928 $214M

Nearby 401(k) Plans in Wisconsin

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust vs. nearby 401(k) plans in Wisconsin, assets vs. participants Scatter plot of 6 data points. -20000020000400006000080000100000 -50510 Total assets ($B) Participants Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust, Total assets ($B): 0.025729589 · Participants: 110Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and TrustAdvocate Aurora Health 401(k) Plan, Total assets ($B): 9.125723544 · Participants: 76956Advocate Aurora Health 401(k) PlanJohnson Controls Retirement Savings and Investment Plan, Total assets ($B): 6.160116767 · Participants: 28904Johnson Controls Retirement Savings and Investment PlanFiserv 401(k) Savings Plan, Total assets ($B): 4.81171463 · Participants: 25280Fiserv 401(k) Savings PlanKimberly-Clark Corporation 401(k) & Profit Sharing Plan, Total assets ($B): 4.550761 · Participants: 11236Kimberly-Clark Corporation 401(k) & Profit Sharing PlanRockwell Automation Retirement Savings Plan, Total assets ($B): 3.62235882 · Participants: 8877Rockwell Automation Retirement Savings Plan
Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust vs. nearby 401(k) plans in Wisconsin, assets vs. participants

Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust's out-of-state 401(k) peers by assets and headcount

Outside Wisconsin, the nearest 401(k) by assets is Ultisat Inc. 401(k) Plan in VA ($26M); by covered participants it is Cms Corporation 401(k) Plan in OH (110 participants). Same-state nearby plans are listed separately above.

Similar participant headcount

Nearest other-state filings by covered participants (110 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust assets move in 2023?
Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust held essentially flat - down 0.9% during 2023, from $26M to $26M. Reported net income was -$238K.
How have Air Wisconsin Airlines LLC plan assets changed over time?
Across 3 plan years on file (2022-2024), Air Wisconsin Airlines LLC's sponsor-wide assets grew 11.4%, from $192M to $214M.
Where does Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust rank by assets among Form 5500 filers?
Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust ranks in the 77th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top quartile of all filed plans by assets).
Which 401(k) plans are similar in size to Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust?
Among 401(k) plans in other states, the closest by assets is Ultisat Inc. 401(k) Plan in VA ($26M, 89 participants).
Which 401(k) plans cover a similar participant headcount to Iamaw Local No. 2575 - Air Wisconsin Airlines Retirement Plan and Trust?
Among 401(k) plans in other states, the closest by covered participants is Cms Corporation 401(k) Plan in OH (110 participants, N/A in assets).