AdvisorGrade
Fee-onlyFiduciaryNo reported disclosuresRegionalInternational

Impax Asset Management LLC

Impax Asset Management LLC is a fee-only, SEC-registered investment adviser in Portsmouth, New Hampshire, registered with the SEC since 1972, managing approximately $8.9B. As an SEC-registered adviser it is held to a fiduciary standard. Its exact fee schedule and account minimums are disclosed in Form ADV Part 2A.

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Source: SEC Form ADV · CRD #114335 · SEC #801-8517 · SEC-registered since 1972 (54 yrs) · Last filing data January 1, 2025

AUM
$8.9B

as of 2025

Fee model
Fee-only

per Form ADV 5.E

Clients
Not reported

Form ADV 5.C — may be institutional

Employees
93

30 advisers

Assets per adviser

$298Mper adviser

A scale-normalized measure that lets you compare large and small firms. The typical firm in our directory manages about $102M per adviser — this firm runs leaner (more assets per adviser).

From impaxam.com

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Overview

AI-generated summary

Impax Asset Management LLC is a fee-only, SEC-registered investment adviser based in Portsmouth, New Hampshire. It reported approximately $8.9B in regulatory assets under management on its most recent Form ADV. The firm reported no disclosures on its most recent Form ADV filing.

This summary is generated from Form ADV data and may not capture all nuances. Always review the complete SEC filing before making decisions.

Firm details

CRD #
114335
SEC #
801-8517
Headquarters
Portsmouth, NH
Employees
93

Clients served

Client types not reported on this filing.

Fees & compensation

  • Compensation model: Fee-only — the firm reports being paid by clients (e.g. a percentage of assets) and not through commissions.
  • Typical fee range: See Part 2A. Exact advisory fee rates are reported in Form ADV Part 2A, not Part 1.
  • Account minimum: See Part 2A. Minimums are disclosed in the firm's Part 2A brochure.
  • Custodial, trading, and fund expenses may apply in addition to advisory fees. See the firm's Form ADV Part 2A for the complete fee schedule.

Assets under management

2025$8.9B
Assets under management by year
YearReported AUM
2025$8.9B

Reflects the most recent Form ADV filing. Multi-year history is added as additional historical filings are ingested.

Disclosures

Impax Asset Management LLC reported no disclosures on its most recent Form ADV (Item 11). Always confirm the current record on the SEC IAPD site.

Frequently asked questions

Is Impax Asset Management LLC a fiduciary?+

Yes. Impax Asset Management LLC is an SEC-registered investment adviser (CRD #114335), which means it is held to a fiduciary standard and must act in its clients' best interest. Verify its current status on the SEC's Investment Adviser Public Disclosure (IAPD) site.

How is Impax Asset Management LLC compensated?+

Impax Asset Management LLC reports a fee-only compensation model on its Form ADV. Fee-only advisers are paid by their clients (for example, a percentage of assets managed) and do not earn commissions. Exact fee rates and account minimums are disclosed in the firm's Form ADV Part 2A brochure.

How much money does Impax Asset Management LLC manage?+

Impax Asset Management LLC reported approximately $8.9B in regulatory assets under management as of its most recent Form ADV filing.

Does Impax Asset Management LLC have any disclosures?+

Impax Asset Management LLC reported no disclosures on its most recent Form ADV (Item 11). Always confirm the current record on the SEC IAPD site.

This profile is generated from publicly available SEC filings. Impax Asset Management LLC has not verified or endorsed this information. Last updated from filings: January 1, 2025. View the official filing at SEC IAPD.

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