Massachusetts Institute of Technology 401(k) match, vesting and fees

Plan year 2024 filingMassachusetts Institute of Technology Supplemental 401(k) Plan · Plan 005 · EIN 04-2103594Updated Oct 2026

What Massachusetts Institute of Technology's 401(k) plan says about matching contributions

The Institute matches the employee contribution on a dollar-for-dollar basis up to 5% of the participant's compensation for the year, subject to certain pre or post tax limitations.
From the independent auditor's report attached to the plan year 2024 Form 5500, page 238. Open page 238 of the filing (PDF) ↗

Quoted directly from the filing. Plan terms may have changed; check your current Summary Plan Description.

Our plain-English summary appears once a person has reviewed it against the filing. How we check · Report a correction
$301,839
Average account balance
27,457
Participants (end of year)
$7.7B
Plan assets (end of year)
0.01%
Admin expenses ÷ assets

Plan features

Indented passages are quoted word for word from the audit report; plan terms may have changed since, so check your current Summary Plan Description.

Employer matchQuoted from the filing aboveAudit report, p. 238 ↗
Match vesting
Participants are 100% vested immediately in all contributions plus actual earnings thereon.
Audit report, p. 239 ↗
Roth contributions
Upon enrollment, the employee agrees to accept a specified reduction in salary/wage, on a pre-tax or post-tax Roth basis, for each pay period in consideration of the Institute’s contributing such amount to the Plan.
Audit report, p. 238 ↗
Loans
Participants may borrow a minimum of $1,000 from their accounts up to a maximum amount prescribed by the Code. The loans are secured by the balance in the participant's account and bear interest at rates that range from 3.25% to 9.00% at December 31, 2024 and December 31, 2023.These rates are commensurate with local prevailing rates as determined by the plan administrator at the time of the loan. Loans are recorded at net realizable value. Participants may borrow one loan at a time from their accounts, from a minimum of $1,000 up to a maximum equal to the lesser of $50,000 minus the highest outstanding balance of any loans active during the 12-month period ending on the day before the new loan, or 50 percent of their vested account balance.
Audit report, p. 239 ↗
Independent auditorPricewaterhousecoopers LLP (unmodified opinion, limited scope)Schedule H ↗
Plan type and status401(k) · ActiveForm 5500 ↗

All rows are from the plan year 2024 filing; plan features from its audit report.

Our plain-English summary appears once a person has reviewed it against the filing. How we check · Report a correction

How the plan compares

Plan year 2024 medians for 54 defined-contribution plans in educational services with 10,000 to 49,999 participants.

Massachusetts Institute of Technology: employer contribution per participant$3,369
Peer median$3,952
Massachusetts Institute of Technology: average balance$301,839
Peer median$137,350
Massachusetts Institute of Technology: admin expenses ÷ assets0.01%
Peer median0.02%

Admin expenses are the plan's reported administrative expenses divided by its assets; they do not include fund expense ratios.

Plan history

Plan assets went from $6.8B at the end of plan year 2023 to $7.7B at the end of plan year 2024.

$6.8B2023$7.7B2024
End-of-year figures from each plan year's Form 5500 filing for the Massachusetts Institute of Technology plan.
Plan yearParticipantsAssetsEmployer contributionsPer participantAdmin expense ratioMatch formulaFiling
202427,457$7.7B$86.1M$3,3690.01%Quoted in the audit report, p. 238 ↗Form 5500 ↗
202326,851$6.8B$80M$3,2140.01%Not publishedForm 5500 ↗

Other Massachusetts Institute of Technology plans (1)

Each plan files its own Form 5500. Figures are from each plan's latest filing.

Massachusetts Institute of Technology Basic Retirement Plan

Plan 002 · EIN 04-2103594 · plan year 2024 filing
$190,155
Average account balance
30,211
Participants (end of year)
$5.7B
Plan assets (end of year)
0.63%
Admin expenses ÷ assets

Plan features

Match, vesting and enrollment details have not been published from this plan's audit report yet. The figures below come from the structured filing.

RecordkeeperHedgeserve Cayman LtdSchedule C ↗
Independent auditorPricewaterhousecoopers (unmodified opinion, limited scope)Schedule H ↗
Plan type and statusPension (defined benefit) · ActiveForm 5500 ↗

Common questions

Does Massachusetts Institute of Technology match 401(k) contributions?

The audit report attached to the Massachusetts Institute of Technology Supplemental 401(k) Plan's plan year 2024 Form 5500, page 238 says: “The Institute matches the employee contribution on a dollar-for-dollar basis up to 5% of the participant's compensation for the year, subject to certain pre or post tax limitations.” Plan terms may have changed; check your current Summary Plan Description.

When is the Massachusetts Institute of Technology 401(k) match vested?

The audit report attached to the plan year 2024 Form 5500, page 239 says: “Participants are 100% vested immediately in all contributions plus actual earnings thereon.”

Who manages the Massachusetts Institute of Technology 401(k)?

The filing names Massachusetts Institute of Technology as plan administrator; it does not list a recordkeeper.

I left Massachusetts Institute of Technology. How do I find my old 401(k)?

Your account stays in the plan until you move it. Contact the plan administrator (Massachusetts Institute of Technology, (617) 253-2734). The Massachusetts Institute of Technology old 401(k) page lists the contacts from every plan filing. Find an old Massachusetts Institute of Technology 401(k)

Data from the public Form 5500 annual reports Massachusetts Institute of Technology filed with the U.S. Department of Labor (plan years 2023 and 2024) and, where noted, the attached independent auditor's report. Plan terms may have changed since the filing; check your current Summary Plan Description. PlanFacts is not affiliated with Massachusetts Institute of Technology. Not financial advice. Report a correction · Methodology