AdvisorCensus / Financial advisors / Massachusetts / Boston / Acadian Asset Management
Acadian Asset Management
Filed as ACADIAN ASSET MANAGEMENT · Legal name Acadian Asset Management LLC
Acadian Asset Management is an SEC-registered investment advisory firm in Boston, MA, registered since 1986, reporting over $5 billion in regulatory assets under management in its Form ADV filing dated August 10, 2026.
Quick answers
From the filingHow is Acadian Asset Management compensated?
On its Form ADV (Item 5.E, October 2026), Acadian Asset Management reports these compensation arrangements: a percentage of assets under its management; performance-based fees.
Where is Acadian Asset Management located?
Acadian Asset Management's principal office is in Boston, MA, according to its Form ADV.
Is Acadian Asset Management registered with the SEC or a state?
Acadian Asset Management is an SEC-registered investment advisory firm, registered since 1986. Status as filed: Approved. CRD 106609.
How much does Acadian Asset Management manage?
Acadian Asset Management reports $177,464,258,309 in regulatory assets under management in its Form ADV filing dated August 10, 2026 (99% discretionary).
How have Acadian Asset Management's assets and staff changed since 2021?
In the Form ADV data for Acadian Asset Management: Regulatory assets under management: $107,229,150,463 in the October 2021 data and $177,464,258,309 in the October 2026 data, up 66%. Total employees: 370 in October 2021 and 375 in October 2026. Assets under management move with markets as well as with clients coming and going.
What types of clients does Acadian Asset Management serve?
By number of clients on Form ADV Item 5.D: pooled investment vehicles (other than investment companies and business development companies) (148); state or municipal government entities (including government pension plans) (66); other (59).
Which custodians does Acadian Asset Management use?
Acadian Asset Management's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists BNY Mellon, Citi, JPMorgan Chase, State Street and The Northern Trust Company as custodians holding 10% or more of its separately managed account assets.
Does Acadian Asset Management report any disciplinary disclosures?
Reports no disclosure items on Form ADV Item 11. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/106609
What changed in Acadian Asset Management's recent Form ADV filings?
In the April 2026 filing data: Employees performing advisory functions went from 130 to 125. Regulatory assets under management went from $117,297,475,194 to $177,464,258,309 (+51%).
From the Form ADV filing
Every figure below is as the firm filed it with regulators, as of October 2026.
How the firm is compensated
Item 5.E- A percentage of assets under your management
- Performance-based fees
Item 5.E lists how the firm is compensated for its advice; Items 5.B, 6.A, and 7.A show whether its people or related companies can also earn commissions. Percentage of assets, fixed, hourly, subscription, and performance-based fees come from clients (a performance-based fee depends on investment results); commissions come with a sale or a trade, often from the company behind the product. How fees, commissions, and other arrangements differ
Fees and minimums
Form ADV Part 2AThe brochure lists different fees for different services or strategies. See the firm's brochure (dated March 26, 2026) for its fees and any account minimum, on the SEC's IAPD site.
Regulatory assets under management
Item 5.F$177,464,258,309 as of October 2026, filing dated August 10, 2026.
A measure of scale, not skill or returns. Discretionary means the firm decides trades; non-discretionary means clients approve each one. What assets under management means
Who the firm serves
Item 5.DA firm with no individual clients is an institutional manager even if it manages billions; the mix tells you whom the practice is built around.
Advisory services
Item 5.G- Portfolio management for investment companies (and business development companies)
- Portfolio management for pooled investment vehicles (other than investment companies)
- Portfolio management for businesses (other than small businesses) or institutional clients
- Other
Registration and firm details
Items 1, 2, 5- Legal name
- Acadian Asset Management LLC
- Also doing business as
- ACADIAN ASSET MANAGEMENT
- Registration
- SEC-registered investment adviser. Status as filed: Approved.
- Registered since
- 1986 (39 years)
- Employees
- Total: 375. Performing investment advisory functions: 125.
- Wrap fee program participation
- No.
- Custodians (Schedule D, Section 5.K(3))
-
Custodians holding 10% or more of the firm's separately managed account assets, as filed on Form ADV (Schedule D, Section 5.K(3)). A custodian holds client assets; it does not endorse or supervise the firm. AdvisorCensus has no relationship with any custodian.
- States registered or notice-filed
-
1 state or jurisdiction
SEC-registered investment advisers are examined by the SEC. SEC, state, and exempt registration
Disclosures
Item 11None Reports no disclosure items on Form ADV Item 11. View on IAPD.
Item 11 asks about criminal, regulatory, and civil events involving the firm and its advisory personnel. The detail of each yes answer is on the IAPD record. Reading a firm's disclosures
Assets and staff over time
Items 5.A, 5.F| Data period | Assets under management | Employees | Filing dated |
|---|---|---|---|
| October 2026 | $177,464,258,309 | 375 | August 10, 2026 |
| October 2025 | $117,297,475,194 | 363 | May 20, 2025 |
| October 2024 | $101,657,441,852 | 364 | August 26, 2024 |
| October 2023 | $92,942,123,864 | 330 | May 11, 2023 |
| October 2022 | $116,160,751,772 | 370 | September 23, 2022 |
| October 2021 | $107,229,150,463 | 370 | March 29, 2021 |
Regulatory assets under management: $107,229,150,463 in the October 2021 data and $177,464,258,309 in the October 2026 data, up 66%.
Total employees: 370 in October 2021 and 375 in October 2026.
As filed in each year's data for the same month. Assets under management move with markets as well as with clients coming and going; they measure scale, not skill or returns. Most firms update these figures once a year.
Changes in the filing
Last 12 months- April 2026
- Employees performing advisory functions went from 130 to 125.
- Regulatory assets under management went from $117,297,475,194 to $177,464,258,309 (+51%).
Compared month to month from the SEC's monthly adviser data and the state compilation feed. Owners and control persons are summarized, never named.
Websites listed on Form ADV
Item 1.ISource: Form ADV, as of October 2026. Values appear as filed; a value the firm did not report is shown as "Not reported."
Cite this page
AdvisorCensus. Acadian Asset Management (CRD 106609): Form ADV filing data as of October 2026. https://advisorcensus.com/firm/acadian-asset-management-boston-ma-106609