Marten Transport, Ltd. 401(k) Plan: Login, Facts & Contact Information

Marten Transport, Ltd. 401(k) Plan Facts

Plan name
MARTEN TRANSPORT RETIREMENT SAVINGS PLAN
Plan type
401(k) with employer contributions
Plan sponsor
MARTEN TRANSPORT, LTD.
Participants
5,069 (3,140 active employees)
Former employees with a balance
1,787
Plan assets
$137,480,338 at Dec 31, 2024
Average account balance
$27,751 across 4,954 accounts
Employer contributions
$3,358,562 in plan year 2024 (16% of all contributions)
Recordkeeper
Transamerica Retirement Solutions
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Jan 1, 1993
✓ Employer contributions✓ Automatic enrollment✓ Default investment for undecided participants✓ Participants choose their own investments— Self-directed brokerage window— Profit sharing— Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Aug 5, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $21.1 million went into the plan in contributions, $3.36 million of it from the employer (16%).
  • $24.4 million was paid out to participants.
  • Investment and other income added $14.9 million.
  • Administrative expenses were $412,768, about $83 per account.

How the Marten Transport, Ltd. 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
20194,024$79.6 million$2.60 million$10.5 million
20204,418$97.2 million$2.95 million$11.3 million
20214,711$115.0 million$2.94 million$12.6 million
20224,716$104.8 million$3.94 million$14.4 million
20235,156$126.3 million$3.80 million$17.8 million
20245,069$137.5 million$3.36 million$24.4 million

Marten Transport, Ltd. 401(k) Contact Information

Phone
715-926-4216
Mailing address
129 MARTEN STREET, MONDOVI WI 54755
Plan sponsor
MARTEN TRANSPORT, LTD.
Employer identification number (EIN)
39-1140809
Plan number
001

Questions about the Marten Transport, Ltd. 401(k)

Does Marten Transport, Ltd contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $3.36 million, 16% of all contributions.

Does the Marten Transport, Ltd 401(k) have automatic enrollment?

Yes. The plan reports automatic enrollment of eligible employees.

How many people are in the Marten Transport, Ltd 401(k) plan?

5,069 participants at the start of plan year 2024, 3,140 of them active employees, and 1,787 former employees who still had money in the plan.

What is the average 401(k) balance at Marten Transport, Ltd?

About $27,751 per account: $137.5 million in plan assets across 4,954 accounts with a balance at the end of plan year 2024.

Who manages the Marten Transport, Ltd 401(k) accounts?

Transamerica (listed on the filing as TRANSAMERICA RETIREMENT SOLUTIONS) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Marten Transport, Ltd. How do I access my 401(k)?

Your account stays with Transamerica after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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