Mainstay Labs 401(k) match, vesting and fees

Plan year 2024 filingMainstay Labs 401(k) Plan · Plan 001 · EIN 87-2784751Updated Oct 2026

What Mainstay Labs' 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 $46K in employer contributions, about $258 per participant. That total includes any match and profit-sharing; it is not a match formula. Plan year 2024 Form 5500 ↗
$29,228
Average account balance
178
Participants (end of year)
$5.2M
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.

RecordkeeperEmpower Annuity Insurance Company OSchedule C ↗
Plan type and status401(k) · ActiveForm 5500 ↗

How the plan compares

Plan year 2024 medians for 1,379 defined-contribution plans in real estate and rental and leasing with 100 to 499 participants.

Mainstay Labs: employer contribution per participant$258
Peer median$1,680
Mainstay Labs: average balance$29,228
Peer median$52,722
Mainstay Labs: admin expenses ÷ assets0.03%
Peer median0.39%

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

Plan history

Plan assets were $5.2M at the end of plan year 2024.

$5.2M2024
End-of-year figures from each plan year's Form 5500 filing for the Mainstay Labs plan.
Plan yearParticipantsAssetsEmployer contributionsPer participantAdmin expense ratioMatch formulaFiling
2024178$5.2M$46K$2580.03%Not publishedForm 5500 ↗

Common questions

Does Mainstay Labs match 401(k) contributions?

The match terms for the Mainstay Labs 401(k) Plan have not been published from its filing yet. The plan year 2024 filing reports $46K in employer contributions, about $258 per participant. That total includes any match and profit-sharing; it is not a match formula.

When is the Mainstay Labs 401(k) match vested?

The vesting schedule for the Mainstay Labs 401(k) Plan is not in the data published so far. Your Summary Plan Description states it.

Who manages the Mainstay Labs 401(k)?

The recordkeeper listed on Schedule C of the plan year 2024 filing is Empower Annuity Insurance Company O. The plan administrator is Mainstay Labs Inc..

I left Mainstay Labs. How do I find my old 401(k)?

Your account stays in the plan until you move it. Contact the plan administrator (Mainstay Labs Inc., (972) 843-1056) or the recordkeeper, Empower Annuity Insurance Company O. The Mainstay Labs old 401(k) page lists the contacts from every plan filing. Find an old Mainstay Labs 401(k)

Data from the public Form 5500 annual reports Mainstay Labs filed with the U.S. Department of Labor (plan years 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 Mainstay Labs. Not financial advice. Report a correction · Methodology