← Directory
IMPAX ASSET MANAGEMENT LLC
CRD 114335File 801-8517
APPROVED
Filing as of Dec 22, 2025
Feed vintage Aug 17, 2026
Regulatory AUM
$8.94B
Top 10% of cohort (national)
Discretionary AUM
$8.94B
Clients
27
27 accounts
Employees
93
Top 10% of cohort in NH
Identity & registration
ADV Item 1- Organization form
- Limited Liability Company
- Firm type
- Registered
- SEC region
- BRO
- Registration date
- Mar 24, 1972
- Principal office
- 30 PENHALLOW STREET, SUITE 400, PORTSMOUTH, NH, 03801
- Phone
- 603-431-8022
- Website
- https://impaxam.com/
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $8.94B
- Discretionary AUM
- $8.94B
- Non-discretionary AUM
- $0
- Discretionary accounts
- 27
- Non-discretionary accounts
- 0
- Total accounts
- 27
- AUM per client
- $331.2M
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| Investment companies | 12 | $7.79B |
| Other investment advisers | 8 | $128.4M |
| Pooled investment vehicles | 7 | $1.02B |
Compensation & activities
ADV Items 5E, 5GCompensation
- A percentage of assets under your management
Advisory activities
- Portfolio management for businesses
- Portfolio management for investment companies
- Portfolio management for pooled investment vehicles
Custody
ADV Item 9- Firm Custody Cash
- No
- Firm Custody Assets
- No
- Firm Custody Clients
- No
- Firm Custody Securities
- No
- Related Person Custody Cash
- No
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- No
Disclosure events
ADV Item 11This firm answered no to every Item 11 disclosure question in this filing.
Filed changes
| Date | Field | From | To |
|---|---|---|---|
| Aug 12, 2026 | Registration | — | APPROVED |
Every value above is reproduced from this firm's Form ADV filing. Fields the firm left blank are shown as “Not reported” rather than filled in from other sources.

