Skip to content
Arctaris Impact Investors logo

Arctaris Impact Investors

Private funds

Wellesley, MACRD 306898Updated

Arctaris Impact Investors is an investment adviser based in Wellesley, MA, registered with the SEC since 2021. It provides investment management. Its clients include pooled investment vehicles. Its regulatory assets under management total $347 million, as filed on 31 March 2026.

8
Clients
Not reported
AUM per individual client
15
Advisory staff
3
Offices

From Form ADV filed 31 March 2026SEC record

Services and clients

Arctaris Impact Investors provides portfolio management for pooled vehicles. The firm advises 6 private funds.

Arctaris Impact Investors reports 8 pooled investment vehicles. These counts refer to investment vehicles, rather than the individual investors in them. Of its assets, 100.0% ($347M across 6 accounts) are managed with discretion. It advised 8 clients without assets under management last fiscal year.

Clients and assets by client type
Clients8 clients
Assets$347M
Share of clients and assets by client type
Client typeClientsAssets
Pooled investment vehicles100%100%
Client breakdown and activity details
Pooled investment vehicles
Clients
8
Regulatory AUM
$347M
AUM share
100.0%
Avg. per client
$43.4M

Total

Clients
8
Regulatory AUM
$347M
AUM share
100%
Avg. per client
$43.4M
Clients outside the U.S.
0%
Clients advised without assets under management last fiscal year
8
Private funds advised
6
Financial planning clients last fiscal year
0

Fees and minimums

Arctaris Impact Investors is paid through a percentage of assets under management, performance-based fees and other compensation; its fees and minimums are set out in its brochures on the SEC website.

Ownership and people

Arctaris Advisory Holding LLC owns 75% or more of Arctaris Impact Investors. The leadership team of Arctaris Impact Investors includes Chief Compliance Officer Alan Halfenger. It has 24 employees, 15 of them in advisory roles.

Leadership

  • Alan Halfenger
    Chief Compliance Officer
  • Patrick Mullen
    Head of Sales
  • Uchechukwu Osuji
    Managing Director
  • Nihar Sait
    Managing Director
  • Jonathan Tower
    Managing Partner

Staff

  • 24 employees
  • 15 in advisory functions
Who owns the firm
Arctaris Impact Investors, LLC· the adviser
  • Arctaris Advisory Holding LLC

    Control person · since June 2024

    Owns 75% or more of Arctaris Impact Investors, LLC
    • Arctaris Holdco LLC

      Indirect owner · Control person · since June 2024

Growth and acquisitions

Arctaris Impact Investors’ regulatory assets grew from $267M (April 2022) to $347M (March 2026); clients rose from 6 to 8 and employees were 24 in both filings.

By annual filing
Measure
Figures from each annual filing
Arctaris Impact Investors figures from each annual Form ADV filing
FiledRegulatory AUMClientsEmployeesOffices
March 2026$347M8243
March 2025$351M8273
May 2024$353M8312
March 2023$336M7272
April 2022$267M6232

Offices and registration details

Besides its headquarters, Arctaris Impact Investors has 2 offices, with 3 listed addresses in Massachusetts, New York and Utah.

Listed office addresses by state

Massachusetts · 1 listed address

  • 20 William Street, Suite 200, WellesleyHQ

Contact and registration details

Legal name
Arctaris Impact Investors, LLC
Headquarters
20 William Street, Suite 200, Wellesley, MA 02481
SEC file
801-121921
Structure
Delaware LLC
Fiscal year end
December

Custodians

Arctaris Impact Investors has custody of client assets.

Common questions

How many clients does Arctaris Impact Investors have?

Arctaris Impact Investors has 8 clients and manages $347 million for them, as of March 2026. They include 8 pooled investment vehicles.

Source: Form ADV Part 1A, Items 5.D and 5.F, filed 31 March 2026

What services does Arctaris Impact Investors offer?

Arctaris Impact Investors provides portfolio management for pooled vehicles.

Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file

How many financial advisors does Arctaris Impact Investors have?

Arctaris Impact Investors has 0 investment adviser representatives registered with state securities authorities, out of 24 employees, and 15 perform investment advisory functions. None are registered representatives of a broker-dealer or licensed insurance agents.

Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file

Who owns Arctaris Impact Investors?

Arctaris Impact Investors’ direct owner is Arctaris Advisory Holding LLC (75% or more).

Source: Form ADV Part 1A, Schedules A and B, filed 31 March 2026

How does Arctaris Impact Investors get paid?

Arctaris Impact Investors is paid through a percentage of assets under management, performance-based fees and other compensation. Its Form ADV lists no commissions among how it is paid.

Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file

How do I contact Arctaris Impact Investors?

Arctaris Impact Investors’ main office is at 20 William Street, Suite 200, Wellesley, MA 02481. Its phone number is 617-735-6000. Its website is arctaris.com.

Source: Form ADV Part 1A, Item 1.F, filed 31 March 2026

Sources and methodology

  1. Form ADV Part 1A, amendment filed 31 March 2026. Items 1, 5, 9, 11 and Schedules A, B and D.
  2. IAPD firm record, CRD 306898.
  3. SEC registered adviser data, annual Form ADV amendments filed 18 April 2022 to 31 March 2026. Items 1.F and 5.

Retrieved 15 October 2026. All are published by the SEC and may have been amended since. Disciplinary history is not yet shown here. The SEC publishes the complete record, including any disciplinary events, and it is the authoritative place to check one. The logo is reproduced for identification from Arctaris Impact Investors, website.

Download source data (JSON)How this directory is compiledReport a correction