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Advisory Research Inc

Chicago, ILSEC-registered investment adviserCRD 108254

Filed as ADVISORY RESEARCH INC

Advisory Research Inc is an SEC-registered investment advisory firm in Chicago, IL, registered since 1978, reporting $500 million to $1 billion in regulatory assets under management in its Form ADV filing dated March 20, 2026.

47 years
registered since 1978
$991,276,223
assets under management
2 arrangements
Percentage of assets, Performance-based
None
disclosure items (Item 11)

Quick answers

From the filing

How is Advisory Research Inc compensated?

On its Form ADV (Item 5.E, October 2026), Advisory Research Inc reports these compensation arrangements: a percentage of assets under its management; performance-based fees. The amounts are in Item 5 of its Form ADV Part 2A brochure.

Where is Advisory Research Inc located?

Advisory Research Inc's principal office is in Chicago, IL, according to its Form ADV.

Is Advisory Research Inc registered with the SEC or a state?

Advisory Research Inc is an SEC-registered investment advisory firm, registered since 1978. Status as filed: Approved. CRD 108254.

How much does Advisory Research Inc manage?

Advisory Research Inc reports $991,276,223 in regulatory assets under management in its Form ADV filing dated March 20, 2026 (100% discretionary).

How have Advisory Research Inc's assets and staff changed since 2021?

In the Form ADV data for Advisory Research Inc: Regulatory assets under management: $1,494,140,923 in the October 2021 data and $991,276,223 in the October 2026 data, down 34%. Total employees: 29 in October 2021 and 14 in October 2026. Assets under management move with markets as well as with clients coming and going.

What types of clients does Advisory Research Inc serve?

By number of clients on Form ADV Item 5.D: individuals (other than high net worth individuals) (275); high net worth individuals (130); corporations or other businesses not listed above (18).

Which custodians does Advisory Research Inc use?

Advisory Research Inc's most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Charles Schwab & Co., Inc., Morgan Stanley, UBS Financial Services Inc. and Wells Fargo Clearing Services, LLC as custodians holding 10% or more of its separately managed account assets.

Does Advisory Research Inc 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/108254

What changed in Advisory Research Inc's recent Form ADV filings?

In the April 2026 filing data: Added the business name ARI Partners GP LLC ("Relying Adviser"). Employees performing advisory functions went from 9 to 8. Regulatory assets under management went from $721,521,157 to $991,276,223 (+37%).

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 2A

See the firm's brochure (dated March 20, 2026) for its fees and any account minimum, on the SEC's IAPD site.

Regulatory assets under management

Item 5.F
$991,276,223

$991,276,223 as of October 2026, filing dated March 20, 2026.

Discretionary: $988,680,580.Non-discretionary: $2,595,643.

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.D
Individuals (other than high net worth individuals)
Clients 275 Assets $100,804,119 (10%)
High net worth individuals
Clients 130 Assets $272,091,545 (27%)
Banking or thrift institutions
Clients 0 Assets $0 (0%)
Investment companies
Clients 1 Assets $24,211,825 (2%)
Business development companies
Clients 0 Assets $0 (0%)
Pooled investment vehicles (other than investment companies and business development companies)
Clients 3 Assets $261,422,536 (26%)
Pension and profit sharing plans (but not the plan participants or government pension plans)
Clients 3 Assets $1,702,307 (0%)
Charitable organizations
Clients 14 Assets $127,614,242 (13%)
State or municipal government entities (including government pension plans)
Clients 0 Assets $0 (0%)
Other investment advisers
Clients 0 Assets $0 (0%)
Insurance companies
Clients 0 Assets $0 (0%)
Sovereign wealth funds and foreign official institutions
Clients 0 Assets $0 (0%)
Corporations or other businesses not listed above
Clients 18 Assets $203,429,649 (21%)
Other
Clients 0 Assets $0 (0%)

A 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 individuals and/or small businesses
  • 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

Registration and firm details

Items 1, 2, 5
Also doing business as
ADVISORY RESEARCH INVESTMENT MANAGEMENT, ARI PARTNERS GP LLC ("RELYING ADVISER")
Registration
SEC-registered investment adviser. Status as filed: Approved.
Registered since
1978 (47 years)
Employees
Total: 14. Performing investment advisory functions: 8.
Wrap fee program participation
Yes.
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
16 states or jurisdictions
CACOCTFLGAIDILLAMANENHNJNYTXVAWI

SEC-registered investment advisers are examined by the SEC. SEC, state, and exempt registration

Disclosures

Item 11

None 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
$1.49B 2021 $1.49B 2022 $1.33B 2023 $642M 2024 $722M 2025 $991M 2026
Data periodAssets under managementEmployeesFiling dated
October 2026$991,276,22314March 20, 2026
October 2025$721,521,15714March 18, 2025
October 2024$641,611,38014March 26, 2024
October 2023$1,332,963,66322March 31, 2023
October 2022$1,485,233,51729March 31, 2022
October 2021$1,494,140,92329March 31, 2021

Regulatory assets under management: $1,494,140,923 in the October 2021 data and $991,276,223 in the October 2026 data, down 34%.

Total employees: 29 in October 2021 and 14 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
  1. April 2026
    • Added the business name ARI Partners GP LLC ("Relying Adviser").
    • Employees performing advisory functions went from 9 to 8.
    • Regulatory assets under management went from $721,521,157 to $991,276,223 (+37%).

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.I
advisoryresearch.com

Source: 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. Advisory Research Inc (CRD 108254): Form ADV filing data as of October 2026.
https://advisorcensus.com/firm/advisory-research-inc-chicago-il-108254