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Sean O'Brien, portrait

Sean O'Brien

Investment adviser representative at Andrew Hill Investment Advisors in West Seneca, NY

Investment adviser registrationUpdated

Sean O'Brien is an investment adviser representative at Andrew Hill Investment Advisors, Inc., an investment adviser managing $231M, and works from its West Seneca, NY office. Sean O'Brien has been registered through Andrew Hill Investment Advisors since 24 April 2025, has 1 year in the industry across 1 firm and has passed the Series 65.

1
Years in industry
1
Years at firm
1
Adviser firms
2
States registered

From the IAPD record, checked 22 October 2026SEC record

Career

Sean O'Brien has been an investment adviser representative at Andrew Hill Investment Advisors since April 2025, and is not listed among the firm’s executive officers or direct owners. Sean O'Brien holds a Bachelor's degree in Finance from Canisius University and an MBA from Canisius University.

Andrew Hill Investment Advisors, Inc. is a Naples, FL firm with $231M under management, 253 clients and 3 advisers across 2 offices, as of its July 2026 filing.

Sean O'Brien is an Associate Portfolio Manager and registered investment adviser representative with Andrew Hill Investment Advisors, providing investment advisory services in New York and Florida. He supports client portfolios through research on equities, fixed income securities and market trends, working closely with the firm's President on portfolio strategy and implementation. He joined full time in spring 2024, after working part time as a Research Analyst during his MBA program.

  1. – present · 1 year
    West Seneca, NY · Adviser representative · Firm CRD 141590

Credentials and registrations

Investment adviser representative registrations

Sean O'Brien is registered as an investment adviser representative in 2 states. The first approvals date from April 2025; the most recent is Florida, in May 2025.

  • FloridaSince 1 May 2025
  • New YorkSince 24 April 2025

Examinations

Series 6515 April 2025
Name
Uniform Investment Adviser Law Examination

Key facts

Full name
Sean Joseph O'Brien
CRD
8081152
Office
West Seneca, NY
Registration
Investment adviser registration
In the industry since
April 2025
Disciplinary history
Not yet shown here · SEC record

Common questions

Where does Sean O'Brien work?

Sean O'Brien is an investment adviser representative registered through Andrew Hill Investment Advisors, Inc. since April 2025, and is not listed among the firm’s executive officers or direct owners.

Source: IAPD individual record, checked 22 October 2026

Is Sean O'Brien a financial advisor?

Yes. Sean O'Brien has a current investment-adviser registration in Florida and New York, through Andrew Hill Investment Advisors since April 2025.

Source: IAPD individual record, checked 22 October 2026

How many years of experience does Sean O'Brien have?

Sean O'Brien has 1 year in the financial industry, since April 2025, across 1 adviser firm.

Source: IAPD individual record, checked 22 October 2026

What exams has Sean O'Brien passed?

Sean O'Brien passed the Series 65 in April 2025.

Source: IAPD individual record, checked 22 October 2026

Where is Sean O'Brien based?

Sean O'Brien’s registered office is in West Seneca, NY.

Source: IAPD individual record, checked 22 October 2026

Is Sean O'Brien registered with FINRA?

No. Sean O'Brien has no current broker registration.

Source: IAPD individual record, checked 22 October 2026

How can I verify Sean O'Brien’s record?

Search CRD 8081152 on the SEC’s adviser search (adviserinfo.sec.gov), which publishes Sean O'Brien’s full registration record.

Source: IAPD individual record, checked 22 October 2026

Leadership at Andrew Hill Investment Advisors

Sources

  1. IAPD individual record, CRD 8081152, checked 22 October 2026. Registration status, employment history and examinations.
  2. Form ADV Part 1A, Schedules A and B of Andrew Hill Investment Advisors, Inc., filed 29 July 2026. Executive officers and direct owners; this person is not among them.
  3. Andrew Hill Investment Advisors team page. Biography, education, credentials, awards and the portrait, reproduced for identification.