M1 Support Services, L.P. 401(k) plan

M1 Support Services, L.P., Westlake, TX. EIN 20-0288988. Annual reports 2009–2025.

M1 Support Services, L.P. has one active retirement plan on file, the M1 Support Services, L.P. 401(k) Plan, with 6,457 participants and $228 million in assets in 2025. Fidelity has been its recordkeeper since 2011. No traditional pension plan appears in M1 Support Services, L.P.'s filings since 2009.

Active plans: 1
Participants: 6,457
Plan assets: $228 million
401(k) recordkeeper: Fidelity
Plans on file: 1
Industry: Transportation and warehousing

The plan

M1 Support Services, L.P. 401(k) Plan

401(k)Active

Active. The plan filed its annual report for the 2025 plan year.

Plan number: 005Employer EIN 20-0288988
Participants (2025): 6,457
Net assets (2025): $228 million
Recordkeeper: FidelityEarlier: Nationwide (2009–2010)
Plan administrator: M1 Support Services, L.P.
1500 Solana BLVD, Suite 5200
Westlake, TX 76262
(940) 323-1119As filed for 2025
In effect since: January 1, 2007

Year by year, 2009 to 2025

Plan year	Participants	Net assets	Recordkeeper
2025	6,457	$228 million	Fidelity
2024	6,024	$172 million	Fidelity
2023	5,451	$129 million	Fidelity
2022	3,094	$92.6 million	Fidelity
2021	3,398	$106 million	Fidelity
2020	3,595	$92.0 million	Fidelity
2019	4,071	$70.5 million	Fidelity
2018	3,493	$44.8 million	Fidelity
2017	2,812	$37.3 million	Fidelity
2016	2,843	$26.3 million	Fidelity
2015	1,504	$18.9 million	Fidelity
2014	1,428	$15.1 million	Fidelity
2013	1,286	$12.5 million	Fidelity
2012	1,222	$8.3 million	Fidelity
2011	1,141	$5.6 million	Fidelity
2010	1,095	$4.0 million	Nationwide
2009	575	$2.6 million	Nationwide

If you had money in one of these plans

Call Fidelity (fidelity.com), which runs the M1 Support Services, L.P. 401(k) Plan. With your Social Security number and the plan name, it can tell you whether you still have a balance and, if not, where it went.
Or call the plan administrator listed on the plan below ((940) 323-1119). That number was filed for 2025; ask for the benefits or retirement plan office.
Still stuck? The Department of Labor's benefits advisers help for free: askebsa.dol.gov or 1-866-444-3272. Never pay anyone to find your own money.

What these numbers are

They come from the Form 5500 annual reports each plan files with the Department of Labor, as the plan filed them. A plan year is usually a calendar year.
Participants counts everyone in the plan at year end: current employees, former employees who still have a balance or a pension coming, and retirees or beneficiaries being paid.
The recordkeeper is the service provider whose Schedule C entry says it keeps the plan's records. Small plans do not file Schedule C, so some plans show none.
We cannot see anyone's account. Only the plan or its recordkeeper can tell you your balance.

Sources: U.S. Department of Labor, Form 5500 datasets and PBGC trusteed plans. How we read them.

The plan

M1 Support Services, L.P. 401(k) Plan

If you had money in one of these plans

What these numbers are

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