401(k)
2022 plan-year 401(k) DOL Form 5500

Willscot Mobile Mini 401(k) Plan

ERISA Form 5500 plan record drawn from DOL EBSA — verify with linked source filings below.

Sponsored by Willscot Mobile Mini Holdings Corp · Arizona · Real Estate

What the 2023 filing shows

Willscot Mobile Mini 401(k) Plan holds $198M for 3,351 participants — about $59,194 per participant, down 8.8% over the 2022 plan year.

$198M
total plan assets (2022 EOY)
3,351
covered participants
$59,194
avg assets per participant
-8.8%
assets change YoY

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.

Total Assets (2023)
$198M
Participants
3,351
State
Industry
Real Estate

What the Filing Says About Willscot Mobile Mini 401(k) Plan

Willscot Mobile Mini 401(k) Plan is a 401(k) retirement plan sponsored by Willscot Mobile Mini Holdings Corp, headquartered in Arizona. As of the 2022 Form 5500 filing, the plan reports $198M in total end-of-year assets and covers 3,351 participants across the Real Estate industry. The sponsor's EIN on file with the U.S. Department of Labor is 520665775, and the plan has been effective since 1993-01-01. Its filing status is currently FILING RECEIVED.

Year over year, total assets moved from $218M at the beginning of 2022 to $198M at year-end — a decline of 8.8%. Net assets (after liabilities) closed the year at $198M, with reported net income of $-19,255,608 driven by investment returns, contributions received, and benefit payments during the period. These figures reflect what the plan administrator certified on Schedule H or Schedule I of the Form 5500 annual return and can be compared against 2 prior plan-year filings from the same sponsor shown below.

Asset totals and participant counts reflect a single plan year snapshot and can change materially with market conditions, plan mergers, or workforce changes. Fields such as "net income" include both realized investment performance and contribution/distribution flows — a single-year figure does not by itself indicate plan health or participant outcomes. This page summarizes public DOL disclosures for research and educational purposes only and is not retirement, tax, legal, or financial advice. Before making decisions about your own retirement benefits or evaluating an employer's plan, verify the underlying filing directly via the DOL EFAST2 system and consult a qualified professional.

Financial Summary (2023)

Total Assets (Beginning of Year)$218M
Total Assets (End of Year)$198M
Net Assets (End of Year)$198M
Net Income$-19,255,608
Plan Type401(k)
Employer EIN520665775
Plan Effective Date1993-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Willscot Mobile Mini Holdings Corp)

Year Plans Participants Total Assets
2022 1 3,351 $198M
2023 1 4,097 $246M
2024 1 4,627 $285M

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Frequently Asked Questions

How much money is in the Willscot Mobile Mini 401(k) Plan?
As of the 2022 Form 5500 filing, Willscot Mobile Mini 401(k) Plan holds $198M in total assets with 3,351 participants. It is sponsored by Willscot Mobile Mini Holdings Corp.
What type of plan is Willscot Mobile Mini 401(k) Plan?
Willscot Mobile Mini 401(k) Plan is a 401(k) plan. It has been effective since 1993-01-01. The plan is filed with the U.S. Department of Labor under EIN 520665775.
Who sponsors the Willscot Mobile Mini 401(k) Plan?
Willscot Mobile Mini 401(k) Plan is sponsored by Willscot Mobile Mini Holdings Corp, located in Arizona. The sponsor's EIN is 520665775 and the plan operates in the Real Estate industry.
How did Willscot Mobile Mini 401(k) Plan perform in 2022?
Willscot Mobile Mini 401(k) Plan declined by 8.8% during 2022, moving from $218M to $198M in total assets. Net income was $-19,255,608.
Where can I find official filings for Willscot Mobile Mini 401(k) Plan?
Official Form 5500 filings for Willscot Mobile Mini 401(k) Plan are available through the U.S. Department of Labor's EFAST2 system. Search by EIN 520665775 or plan name at efast.dol.gov.
How does Willscot Mobile Mini 401(k) Plan compare to other plans?
You can compare Willscot Mobile Mini 401(k) Plan against other 401(k) plans on the plan type page, or view plans in Arizona on the state page. PlainRetire tracks the 5,000 largest retirement plans in the U.S. by total assets.

Explore PlainRetire

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) — original filing retrieval by EIN 520665775.

Reference: IRS Publication 560 — Retirement Plans for Small Business, contribution-limit rules.

Reference: IRS Publication 590-B — Distributions from IRAs, RMD rules under SECURE Act 2.0.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.