Firm profile

Acadian Asset Management

BOSTON, MACRD 106609Registration Status: ApprovedEffective since October 10, 1986SEC # 801-28078Latest ADV August 10, 2026

Acadian Asset Management is an SEC registered investment adviser organized as a limited liability company with a primary office location in Boston, MA. Its latest Form ADV filing, dated August 10, 2026, reports $177.5B in regulatory assets under management, 375 employees, 1 office, and 356 accounts.

Assets Under Management
$177.5B
Employees
375
Offices
1 office
Total Clients
350

Associated firm names

3 names listed
  • ACADIAN ASSET MANAGEMENT
  • ACADIAN ASSET MANAGEMENT LLC
  • ACADIAN ASSET MANAGEMENT INC

Leadership

4 roles identified
CEOKelly-ann L. Young
CCOScott P. Dias
CFOCharmaine M. Catania

Advisory services offered

4 types reported
Other advisory services
Portfolio management for businesses
Portfolio management for investment companies

Fee models offered

2 types reported
Asset based fees
Performance-based fees

Offices & Contact

Primary office

BOSTON, Massachusetts, United States

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Primary office regionOther reported regions

Shading shows states and countries with reported offices. Cities are listed below; shading does not indicate service coverage.

Massachusetts

BOSTONPrimary office

1 office records listed · 1 total offices reported. Counts can use different reporting dates. SEC filers may list only their largest 25 additional offices.

Contact and digital presence

ADV profile links

Regulatory Assets Under Management Breakdown

Total regulatory assets under management$177.5Bas of August 10, 2026
Discretionary98.7%
$175.2B
99% of total RAUM98.7%
Non-discretionary1.3%
$2.3B
1% of total RAUM1.3%
Regulatory assets under management are split between discretionary and non-discretionary assets.

Client Coverage Demographics

Top client segmentPooled Investment Vehicles represent 42.3% of total clients.
Top client categories% of clientsClients
1
Pooled Investment Vehicles
42.3%
148
2
Government
18.9%
66
3
NON-US PENSION, NON-US PUBLIC, TAFT HARTLEY, MODEL PORTFOLIOS, FAMILY OFFICE
16.9%
59
4
Pension Plans
7.7%
27
5
Charitable
7.7%
27
Categories with <5 clients
Corporations or other businesses not listed above<5 clients

Assets under management Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total AUM$177.5B
Total Accounts356
10Y AUM Change+$103.3B (+139.3%)

Private Funds

Private funds reported by Acadian Asset Management

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Employee Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total Employees375
Clients per Employee1:1
10Y Employee Change+75 (+25.0%)

Historical AUM and employee figures reflect available SEC Form ADV filings under this CRD. Filing gaps may reflect registration status changes, dormant periods, state registration periods, firm restructuring, or other reporting changes. Rialytix does not interpolate missing periods.


Ownership

Reported direct and indirect ownership ranges

Each range applies to a separate reported relationship and should not be added together.

Reported ownership ranges

Highlighted bands show the percentage range reported in Form ADV.

0%25%50%75%100%
ACADIAN AFFILIATE HOLDINGS LLCDirect owner · Schedule AInterest in ACADIAN ASSET MANAGEMENT
75%+
ACADIAN KELP LPDirect owner · Schedule AInterest in ACADIAN ASSET MANAGEMENT
75%+
ACADIAN INC.Indirect owner · Schedule BInterest in ACADIAN AFFILIATE HOLDINGS LLC
75%+
ACADIAN ASSET MANAGEMENT INCIndirect owner · Schedule BInterest in ACADIAN INC.
75%+

Bars represent the reported range at that individual ownership step, not an estimated percentage of the advisory firm. Indirect relationships may refer to intermediate entities rather than directly to Acadian Asset Management.

Reported ownership and control details

Form ADV · Filing date 2026-08-10 · Schedules A and B

13 entries
#Owner / person & roleInterest in entityReported interestControl personTitle / status acquiredSource
1ACADIAN AFFILIATE HOLDINGS LLCSOLE HOLDER OF CLASS A INTERESTS OF THE REGISTRANT - NAME CHANGE FROM BRIGHTSPHERE AFFILIATE HOLDINGS LLCDomestic entityACADIAN ASSET MANAGEMENT75% or moreCode EYesSOLE HOLDER OF CLASS A INTERESTS OF THE REGISTRANT - NAME CHANGE FROM BRIGHTSPHERE AFFILIATE HOLDINGS LLC01/2025Schedule APDF page 238
2SCOTT PETER DIASSVP, CHIEF COMPLIANCE OFFICER, GENERAL COUNSELIndividualACADIAN ASSET MANAGEMENTLess than 5%Code NAYesSVP, CHIEF COMPLIANCE OFFICER, GENERAL COUNSEL12/2007Schedule APDF page 238
3ACADIAN KELP LPSOLE HOLDER OF CLASS B INTERESTS OF THE REGISTRANTDomestic entityACADIAN ASSET MANAGEMENT75% or moreCode EYesSOLE HOLDER OF CLASS B INTERESTS OF THE REGISTRANT07/2017Schedule APDF page 238
4BRENDAN O'BRIEN BRADLEYCIO, MANAGERIndividualACADIAN ASSET MANAGEMENTLess than 5%Code NAYesCIO, MANAGER01/2019Schedule APDF page 238
5Kelly-Ann Louise YoungCHIEF EXECUTIVE OFFICER, MANAGERIndividualACADIAN ASSET MANAGEMENTLess than 5%Code NAYesCHIEF EXECUTIVE OFFICER, MANAGER12/2023Schedule APDF page 238
6Charmaine Marie CataniaSVP, CHIEF FINANCIAL OFFICERIndividualACADIAN ASSET MANAGEMENTLess than 5%Code NAYesSVP, CHIEF FINANCIAL OFFICER01/2020Schedule APDF page 238
7RICHARD JONATHAN HARTMANAGERIndividualACADIAN ASSET MANAGEMENTLess than 5%Code NAYesMANAGER04/2020Schedule APDF page 238
8Haixuan Melody HuangMANAGERIndividualACADIAN ASSET MANAGEMENTLess than 5%Code NAYesMANAGER03/2023Schedule APDF page 238
9THEODORE W. NOONCHIEF MARKETING OFFICER, MANAGERIndividualACADIAN ASSET MANAGEMENTLess than 5%Code NAYesCHIEF MARKETING OFFICER, MANAGER02/2024Schedule APDF page 238
10Alexandre VoitenokMANAGER, DEPUTY CHIEF INVESTMENT OFFICERIndividualACADIAN ASSET MANAGEMENTLess than 5%Code NAYesMANAGER, DEPUTY CHIEF INVESTMENT OFFICER03/2024Schedule APDF page 238
11ACADIAN INC.SOLE MEMBER OF ACADIAN AFFILIATE HOLDINGS LLC - NAME CHANGE FROM BRIGHTSPHERE INC.Domestic entityACADIAN AFFILIATE HOLDINGS LLC75% or moreCode EYesSOLE MEMBER OF ACADIAN AFFILIATE HOLDINGS LLC - NAME CHANGE FROM BRIGHTSPHERE INC.01/2025Schedule BPDF page 239
12ACADIAN KELP GP LLCGENERAL PARTNER OF ACADIAN KELP LPDomestic entityACADIAN KELP LPPercentage not specifiedCode FYesGENERAL PARTNER OF ACADIAN KELP LP12/2007Schedule BPDF page 239
13ACADIAN ASSET MANAGEMENT INCSOLE SHAREHOLDER OF ACADIAN INC. - NAME CHANGE FROM BRIGHTSPHERE INVESTMENT GROUPDomestic entityACADIAN INC.75% or moreCode EYesSOLE SHAREHOLDER OF ACADIAN INC. - NAME CHANGE FROM BRIGHTSPHERE INVESTMENT GROUP01/2025Schedule BPDF page 239

Less than 5% may include zero. Code F identifies a role without specifying a percentage. Reported interests may overlap and may not include every owner. Total indirect ownership is not calculated.

Compliance & Disclosures

Filing dated 8/10/2026 4:30:59 PM

Responses were selected by the RIA in its filing. Questions are shortened for readability; “you” refers to the reporting firm, and some questions also cover advisory affiliates.

RIA or supervised-person involvementThe RIA reported that none of the events below involve the firm or its supervised persons.RIA responseNo
AFelonies2 No

In the past ten years, have you or any advisory affiliate:

  • A1Been convicted of or pleaded guilty or no contest to a felony?No
  • A2Been charged with a felony?No
BMisdemeanors2 No

In the past ten years, have you or any advisory affiliate:

  • B1Been convicted of or pleaded guilty or no contest to a misdemeanor involving investments, an investment-related business, fraud, false statements or omissions, wrongful taking of property, bribery, perjury, forgery, counterfeiting, or extortion?No
  • B2Been charged with a misdemeanor of the kind listed above?No
CSEC or CFTC actions5 No

Has the SEC or CFTC ever:

  • C1Found you or an advisory affiliate made a false statement or omission?No
  • C2Found you or an advisory affiliate violated SEC or CFTC regulations or statutes?No
  • C3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • C4Entered an order against you or an advisory affiliate in connection with investment-related activity?No
  • C5Imposed a civil money penalty on you or an advisory affiliate, or ordered you or an advisory affiliate to cease and desist from any activity?No
DOther regulatory actions5 No

Has any other federal regulatory agency, state regulatory agency, or foreign financial regulatory authority ever:

  • D1Found you or an advisory affiliate made a false statement or omission, or was dishonest, unfair, or unethical?No
  • D2Found you or an advisory affiliate violated investment-related regulations or statutes?No
  • D3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • D4In the past ten years, entered an order against you or an advisory affiliate in connection with investment-related activity?No
  • D5Denied, suspended, or revoked your or an advisory affiliate’s registration or license, or otherwise prevented association with an investment-related business or restricted activities?No
ESelf-regulatory organization actions4 No

Has a self-regulatory organization or commodities exchange ever:

  • E1Found you or an advisory affiliate made a false statement or omission?No
  • E2Found you or an advisory affiliate violated its rules, other than a violation designated as a minor rule violation under an SEC-approved plan?No
  • E3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • E4Disciplined you or an advisory affiliate by expulsion, suspension, barring association with other members, or otherwise restricting activities?No
FProfessional authorizations1 No
  • FHas an authorization to act as an attorney, accountant, or federal contractor granted to you or an advisory affiliate ever been revoked or suspended?No
GPending regulatory proceedings1 No
  • GAre you or any advisory affiliate now the subject of a regulatory proceeding that could result in a “Yes” answer to any part of C, D, or E?No
HCivil judicial actions and proceedings4 No

(1) Court actions

Has a domestic or foreign court:

  • H(1)(a)In the past ten years, enjoined you or an advisory affiliate in connection with investment-related activity?No
  • H(1)(b)Found that you or an advisory affiliate violated investment-related statutes or regulations?No
  • H(1)(c)Dismissed, pursuant to a settlement agreement, an investment-related civil action brought against you or an advisory affiliate by a state or foreign financial regulatory authority?No

(2) Pending civil proceedings

  • H(2)Are you or any advisory affiliate now the subject of a civil proceeding that could result in a “Yes” answer to any part of H(1)?No

* Metrics are based on the latest available data, including Form ADV filings, brochures, and relationship summaries pulled from the SEC IAPD, and may be subject to change. Learn what is included in the Rialytix data. Please refer to the firm's official disclosures for the most accurate information using their CRD number. This is not investment advice.