Impax Asset Management 401(k) match, vesting and fees

Plan year 2025 filingImpax Asset Management 401(k) Retirement Plan · Plan 001 · EIN 27-1374824Updated Oct 2026

What Impax Asset Management's 401(k) plan says about matching contributions

The match terms have not been published from this plan's filing yet.
The plan year 2025 filing reports $749K in employer contributions, about $5,804 per participant. That total includes any match and profit-sharing; it is not a match formula. Plan year 2025 Form 5500 ↗
$218,778
Average account balance
130
Participants (end of year)
$28.2M
Plan assets (end of year)
0.05%
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.

RecordkeeperSentinel Benefits Group, LLCSchedule C ↗
Independent auditorBaker Newman Noyes LLC (unmodified opinion, limited scope)Schedule H ↗
Plan type and status401(k) · ActiveForm 5500 ↗

How the plan compares

Plan year 2025 medians for 1,478 defined-contribution plans in finance and insurance with 100 to 499 participants.

Impax Asset Management: employer contribution per participant$5,804
Peer median$3,122
Impax Asset Management: average balance$218,778
Peer median$111,687
Impax Asset Management: admin expenses ÷ assets0.05%
Peer median0.20%

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 $22.3M at the end of plan year 2021 to $28.2M at the end of plan year 2025.

$22.3M2021$20.6M2022$26.5M2023$29.6M2024$28.2M2025
End-of-year figures from each plan year's Form 5500 filing for the Impax Asset Management plan.
Plan yearParticipantsAssetsEmployer contributionsPer participantAdmin expense ratioMatch formulaFiling
2025130$28.2M$749K$5,8040.05%Not publishedForm 5500 ↗
2024148$29.6M$853K$6,0490.04%Not publishedForm 5500 ↗
2023149$26.5M$1.1M$7,4670.05%Not publishedForm 5500 ↗
2022131$20.6M$663K$5,3900.05%Not published5500-SF ↗
2021110$22.3M$574K$5,3660.04%Not published5500-SF ↗

Common questions

Does Impax Asset Management match 401(k) contributions?

The match terms for the Impax Asset Management 401(k) Retirement Plan have not been published from its filing yet. The plan year 2025 filing reports $749K in employer contributions, about $5,804 per participant. That total includes any match and profit-sharing; it is not a match formula.

When is the Impax Asset Management 401(k) match vested?

The vesting schedule for the Impax Asset Management 401(k) Retirement Plan is not in the data published so far. Your Summary Plan Description states it.

Who manages the Impax Asset Management 401(k)?

The recordkeeper listed on Schedule C of the plan year 2025 filing is Sentinel Benefits Group, LLC. The plan administrator is Impax Asset Management LLC.

I left Impax Asset Management. How do I find my old 401(k)?

Your account stays in the plan until you move it. Contact the plan administrator (Impax Asset Management LLC, (603) 431-8022) or the recordkeeper, Sentinel Benefits Group, LLC. The Impax Asset Management old 401(k) page lists the contacts from every plan filing. Find an old Impax Asset Management 401(k)

Data from the public Form 5500 annual reports Impax Asset Management filed with the U.S. Department of Labor (plan years 2021 and 2022 and 2023 and 2024 and 2025) 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 Impax Asset Management. Not financial advice. Report a correction · Methodology