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Asset manager · Boston, MA

Mercer Investments LLC

SEC-registered investment adviser · CRD 133449 · SEC 801-63730

At a glance

Mercer Investments LLC is an SEC-registered investment adviser based in Boston, Massachusetts, with $226.0 billion in regulatory assets under management as of its Form ADV filed August 11, 2026. Its largest client group by assets is pension and profit sharing plans. By Form ADV it is a asset manager, ranked 67th of 3,218 asset managers and 113th of 17,210 SEC-registered advisers by assets.

Main office 617-747-9500mercer.comLinkedInAs filed on Form ADV

Regulatory AUM
$226B
Rank among asset managers
#67 of 3,218
Rank among all SEC RIAs
#113 of 17,210
Rank in Massachusetts
#12 of 627
Clients
1,407
Accounts
1,417
Discretionary
97% of AUM
Employees
714
Advisory staff
662
Offices
26

Owners and executives on its Form ADV

Custody and brokerage

2 custodians

  1. Northern Trust$41B57%
  2. Fidelity$31B43%

Other RIAs using Northern TrustOther multi-custodian RIAs

Broker-dealer

Hybrid RIA

Mercer Investments LLC is a hybrid RIA: 65 of its employees are also registered representatives of a broker-dealer. It names affiliated broker-dealers: MMA Securities LLC, MMC Securities LLC and Mercer Global Investments Canada Limited.

Other hybrid RIAs

Who it serves

Client typeClientsRegulatory AUMShare
Pension and profit sharing plans312$140B62%
Charitable organizations1,034$63B28%
Investment companies6$11B5%
Pooled investment vehicles35$9.9B4%
Other20$1.9B<1%
State or municipal government entities–$484M<1%
Insurance companies–$347M<1%
Corporations or other businesses–$16M<1%
Sovereign wealth funds and foreign official institutions–$2M<1%

Private funds

Mercer Investments LLC reports 40 private funds with $19B in gross assets: hedge funds, private equity funds, other private funds (Form ADV Item 7.B).

Disciplinary disclosures

Mercer Investments LLC answers yes to 1 disclosure item in Item 11 of Form ADV (criminal, regulatory or civil matters involving the firm or its advisory affiliates). Read the details on the SEC’s adviser search ↗

Services

  • Portfolio management for individuals and small businesses
  • Portfolio management for investment companies
  • Portfolio management for pooled investment vehicles
  • Portfolio management for businesses and institutions
  • Pension consulting
  • Selecting other advisers
  • Periodicals or newsletters
  • Educational seminars and workshops
  • Other services

How it’s paid

  • A percentage of assets under management
  • Hourly charges
  • Fixed fees
  • Performance-based fees
  • Other

Form ADV and brochures on the SEC’s adviser search ↗mercer.com ↗

AtlasMembers

The full record on Mercer Investments LLC

Ten years of SEC filings, its owners and contacts, and how it stacks up against its peers. Atlas members see all of it.

Assets, accounts, clients and staff, ten years of filings
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Growth over one, three and five years
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Rank against 140 peers of its type and size
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Owners and executives, with titles and stakes
10 namedLocked
Main office, fax and compliance officer
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Filing changes this year, with alerts
3Locked
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Free while Atlas launches: create a free account and confirm your email. Every figure comes from SEC filings.

Background

Questions

How much does Mercer Investments LLC manage?

Mercer Investments LLC reports $226.0 billion in regulatory assets under management across 1,417 accounts, 97% of it on a discretionary basis, on its Form ADV filed August 11, 2026.

What kind of firm is Mercer Investments LLC?

Mercer Investments LLC is a asset manager by its Form ADV answers. Most of its assets are managed for funds, institutions or other businesses rather than individuals. A public reporting company controls it.

Who are Mercer Investments LLC’s clients?

By assets, its largest client types are pension and profit sharing plans ($139.9 billion, 312 clients); charitable organizations ($62.6 billion, 1,034 clients); investment companies ($11.0 billion, 6 clients).

Does Mercer Investments LLC manage private funds?

Yes. It reports 40 private funds with $19.2 billion in gross assets, including hedge funds, private equity funds, other private funds.

Does Mercer Investments LLC have any disciplinary history?

Mercer Investments LLC answers yes to 1 disclosure item in Item 11 of Form ADV, which covers criminal, regulatory and civil matters involving the firm or its advisory affiliates. The details are on the SEC’s adviser search.

Where these numbers come from

Every figure is Mercer Investments LLC’s own answer on its latest Form ADV, from the SEC’s registered-adviser list as of October 1, 2026: regulatory assets and accounts (Item 5.F), clients by type (5.D), employees (5.A and 5.B), compensation (5.E) and services (5.G). Custodians come from Schedule D 5.K(3) of its latest filing (2026-08-11), which lists those holding 10% or more of separately managed account assets and the amount at each. “Hybrid” means some employees are also registered representatives of a broker-dealer (Item 5.B(2)); affiliated broker-dealers are the related persons it lists in Item 7.A and Schedule D. Firm type comes from its own answers: broker-dealer firms are registered broker-dealers themselves (Item 6.A); private fund advisers manage mostly private funds (Item 7.B, 5.D); wealth managers manage at least half their assets for individuals (5.D). Ranks compare it by regulatory assets with every SEC-registered adviser and with firms of its type. Figures are as of the firm’s last annual update, so they can lag recent deals and market moves. Regulatory AUM counts assets the firm continuously supervises and can differ from what a firm markets.

Not an endorsement or a recommendation. Before hiring any adviser, read its Form ADV Part 2A brochure and check its record on the SEC’s adviser search. How to check a financial advisor →