401(k) · DOL Form 5500 · 2022
Willscot Mobile Mini Holdings Corp 401(k) Plan
Data updated 2026-08-25
- $198M
- Total assets Near avg plan size
- 3,351
- Participants Above avg headcount
- 96th
- Percentile by assets National rank
- $59,194
- Avg per participant Low balance/head
Official DOL plan name: Willscot Mobile Mini 401(k) Plan · Sponsored by Willscot Mobile Mini Holdings Corp · Arizona · Real Estate
$198M in assets, 3,351 participants
Willscot Mobile Mini Holdings Corp's Willscot Mobile Mini 401(k) Plan reported $198M in total assets and 3,351 participants in its 2022 DOL Form 5500 filing, ranking in the 96th 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.
- #5,012 in Real Estate (5,057 peers)
Coverage in Arizona
Willscot Mobile Mini 401(k) Plan covers 3,351 participants in Arizona, 5.9x the typical Arizona plan (state average ~564 per filing). Assets: $198M.
- #5,012
- in Real Estate (5,057 peers)
- -8.8%
- assets change YoY
- 2.0×
- vs typical plan assets (national mean)
The plan reported a net loss of $19M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.
Willscot Mobile Mini 401(k) Plan's outsized position by total assets
Willscot Mobile Mini 401(k) Plan vs every filed plan by assets
End-of-year total assets · plan year 2022 · DOL Form 5500
$198,358,707 Top 4% higher than 96% 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
Willscot Mobile Mini 401(k) 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. Willscot Mobile Mini 401(k) Plan lands in the large band (3,351 participants).
Form 5500 schedule snapshot
Filing strip 520665775 · Willscot Mobile Mini Holdings Corp PY 2022 · 401(k)
Willscot Mobile Mini 401(k) Plan · $198M · 3,351 · 96th
- ASSETS $198M
- ASSETS 3,351
- ASSETS 96th
- ASSETS 401(k)
- ASSETS near Starfish Holdings 401(k) Retirement Plan
- ASSETS ind #5012
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 Real Estate retirement plans → · Plans in Arizona →
Willscot Mobile Mini 401(k) Plan in the asset neighbourhood
Arizona filing particulars
| Total Assets (Beginning of Year) | $218M |
|---|---|
| Net Assets (End of Year) | $198M |
| Net Income | -$19M |
| Employer EIN | 520665775 |
| Plan Effective Date | 1993-01-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Willscot Mobile Mini Holdings Corp)
Sponsor-wide plan assets over time
All Willscot Mobile Mini Holdings Corp plans reported in each filing year
- Latest sponsor-wide plan assets
- $285M 43.46084893566079% vs 2022
- 2024 filing year
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 1 | 3,351 | $198M |
| 2023 | 1 | 4,097 | $246M |
| 2024 | 1 | 4,627 | $285M |
Nearby 401(k) Plans in Arizona
Peer 401(k) plans, same state, same plan type, ranked by total assets.
- Banner Health Employees 401(k) Plan $3.6B · 50,602
- Freeport-Mcmoran Inc. Employee Capital Accumulation Program $1.9B · 12,362
- Republic Services, Inc. 401(k) Plan $1.8B · 28,320
- Stantec 401(k) Plan $1.7B · 8,764
- Reliance Steel & Aluminum Co. Master 401(k) Plan $1.3B · 9,895
Willscot Mobile Mini 401(k) Plan's out-of-state 401(k) peers by assets and headcount
Outside Arizona, the nearest 401(k) by assets is Starfish Holdings 401(k) Retirement Plan in AL ($198M); by covered participants it is Prosperity Bancshares, Inc. 401(k) Profit Sharing Plan in TX (3,350 participants). Same-state nearby plans are listed separately above.
Closest by plan assets
Nearest other-state filings by tot_assets_eoy ($198M here).
- Starfish Holdings 401(k) Retirement Plan (AL) $198M · 1,304
- Harnish Group Inc. Retirement Plan (WA) $198M · 1,045
- Sky Chefs, Inc. Moneysmart 401(k) Savings and Retirement Plan (TX) $198M · 8,737
- Franklin Electric Retirement Program (Ferp) (IN) $198M · 1,649
Similar participant headcount
Nearest other-state filings by covered participants (3,351 participants); asset peers above are excluded.
- Prosperity Bancshares, Inc. 401(k) Profit Sharing Plan (TX) 3,350 · 1 off
- The Cengage Learning, Inc. 401(k) Savings Plan (OH) 3,352 · 1 off
- Floyd Healthcare Management, Inc. 401(k) Retirement Plan (GA) 3,350 · 1 off
- Technipfmc Retirement Savings Plan (TX) 3,352 · 1 off
DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.