Mass General Brigham 401(k) match, vesting and fees

Plan year 2024 filingConsolidated 401(a) and 401(k) Program of Mass General Brigham and Member Organizations · Plan 500 · EIN 04-3230035Updated Oct 2026

What Mass General Brigham's 401(k) plan says about matching contributions

The match terms have not been published from this plan's filing yet.
The plan year 2024 filing reports $7.1M in employer contributions, about $718 per participant. That total includes any match and profit-sharing; it is not a match formula. Plan year 2024 Form 5500 ↗
$65,460
Average account balance
9,930
Participants (end of year)
$645M
Plan assets (end of year)
0.02%
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.

RecordkeeperFidelity Investments InstitutionalSchedule C ↗
Independent auditorWolf & Company, P.C. (unmodified opinion, limited scope)Schedule H ↗
Plan type and status401(k) · ActiveForm 5500 ↗

How the plan compares

Plan year 2024 medians for 219 defined-contribution plans in health care and social assistance with 5,000 to 9,999 participants.

Mass General Brigham: employer contribution per participant$718
Peer median$1,897
Mass General Brigham: average balance$65,460
Peer median$70,943
Mass General Brigham: admin expenses ÷ assets0.02%
Peer median0.10%

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 $629M at the end of plan year 2023 to $645M at the end of plan year 2024.

$629M2023$645M2024
End-of-year figures from each plan year's Form 5500 filing for the Mass General Brigham plan.
Plan yearParticipantsAssetsEmployer contributionsPer participantAdmin expense ratioMatch formulaFiling
20249,930$645M$7.1M$7180.02%Not publishedForm 5500 ↗
202310,028$629M$5.2M$5200.04%Not publishedForm 5500 ↗

Other Mass General Brigham plans (2)

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

Consolidated 403(b) Program of Mass General Brigham and Member Organizations

Plan 010 · EIN 04-3230035 · plan year 2024 filing
$125,038
Average account balance
136,132
Participants (end of year)
$16.7B
Plan assets (end of year)
0.03%
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.

RecordkeeperFidelity InvestmentsSchedule C ↗
Independent auditorWolf & Company, P.C. (unmodified opinion, limited scope)Schedule H ↗
Plan type and status403(b) · ActiveForm 5500 ↗

Consolidated Cash Balance Program of Mass General Brigham and Member Organizations

Plan 499 · EIN 04-3230035 · plan year 2024 filing
$120,057
Average account balance
96,507
Participants (end of year)
$11.6B
Plan assets (end of year)
0.12%
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.

RecordkeeperAlight Solutions LLCSchedule C ↗
Independent auditorWolf & Company, P.C. (unmodified opinion)Schedule H ↗
Plan type and statusPension (defined benefit) · ActiveForm 5500 ↗

Common questions

Does Mass General Brigham match 401(k) contributions?

The match terms for the Consolidated 401(a) and 401(k) Program of Mass General Brigham and Member Organizations have not been published from its filing yet. The plan year 2024 filing reports $7.1M in employer contributions, about $718 per participant. That total includes any match and profit-sharing; it is not a match formula.

When is the Mass General Brigham 401(k) match vested?

The vesting schedule for the Consolidated 401(a) and 401(k) Program of Mass General Brigham and Member Organizations is not in the data published so far. Your Summary Plan Description states it.

Who manages the Mass General Brigham 401(k)?

The recordkeeper listed on Schedule C of the plan year 2024 filing is Fidelity Investments Institutional. The plan administrator is Mass General Brigham Incorporated.

I left Mass General Brigham. How do I find my old 401(k)?

Your account stays in the plan until you move it. Contact the plan administrator (Mass General Brigham Incorporated, (833) 275-6947) or the recordkeeper, Fidelity Investments Institutional. The Mass General Brigham old 401(k) page lists the contacts from every plan filing. Find an old Mass General Brigham 401(k)

Data from the public Form 5500 annual reports Mass General Brigham 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 Mass General Brigham. Not financial advice. Report a correction · Methodology