NivaLet’s talk

Seth Miller

President, Advocacy and Administration, General Counsel, Director at Cambridge Investment Research Advisors

Investment adviser and broker registrations

Seth Miller is President, Advocacy and Administration, General Counsel, Director of Cambridge Investment Research Advisors, Inc., a Fairfield investment adviser managing $139B. Seth Miller has been registered as an investment adviser representative through Cambridge Investment Research Advisors since 6 January 2010, has 18 years in the industry across 1 firm and has passed the Series 7, Series 66 and Series 24.

18
Years in industry
16
Years at firm
1
Adviser firms
1
States registered

From the IAPD record · data retrieved 18 October 2026 · page updated 20 October 2026SEC record

Career

Seth Miller has been President, Advocacy and Administration, General Counsel, Director of Cambridge Investment Research Advisors since August 2022. Seth Miller is a control person of the firm and directly owns under 5% of it. Seth Miller holds a B.S. in Finance and Management from Iowa State University and a J.D. from the University of Iowa College of Law.

Cambridge Investment Research Advisors, Inc. is a Fairfield, IA firm with $139B under management, 361,213 clients and 3,496 advisers across 2,340 offices, as of its September 2026 filing.

Seth Miller joined Cambridge in 2008 and leads its Advocacy and Administration division. He oversees its Corporate Legal, Supervision, Human Resources and Compliance teams.

  1. Cambridge Investment Research Advisors, Inc.Current
    – present · 16 years
    , · Adviser representative · Firm CRD 134139

Credentials and registrations

Investment adviser representative registrations

Iowa6 January 2010
Status
Approved

Examinations

SIECredited
Name
Securities Industry Essentials Examination
Series 2424 November 2010
Name
General Securities Principal Examination
Series 6630 December 2009
Name
Uniform Combined State Law Examination
Series 726 August 2008
Name
General Securities Representative Examination

Individual record

Full name
Seth Aaron Miller
CRD
5495508

Disciplinary history is not reported here, in either direction. Check the SEC record.

Common questions

Where does Seth Miller work?

Seth Miller has been President, Advocacy and Administration, General Counsel, Director of Cambridge Investment Research Advisors, Inc. since August 2022, and is a control person of the firm.

Source: Form ADV, Schedule A, filed 11 September 2026

Is Seth Miller a financial advisor?

Yes. Seth Miller has a current investment-adviser registration in Iowa, through Cambridge Investment Research Advisors since January 2010.

Source: IAPD individual record, checked 18 October 2026

How many years of experience does Seth Miller have?

Seth Miller has 18 years in the financial industry, since August 2008, across 1 adviser firm.

Source: IAPD individual record, checked 18 October 2026

What exams has Seth Miller passed?

Seth Miller has passed 3 licensing exams: the Series 7, Series 66 and Series 24. The earliest, the Series 7, was passed in August 2008. FINRA credited Seth Miller with the SIE, which began in October 2018.

Source: IAPD individual record, checked 18 October 2026

Leadership at Cambridge Investment Research Advisors

Sources

  1. IAPD individual record, CRD 5495508. Registration status, employment history and examinations.
  2. Form ADV Part 1A, Schedules A and B of Cambridge Investment Research Advisors, Inc., filed 11 September 2026. Title, control and ownership bands.
  3. Cambridge leadership biographies. Biography, education.

Retrieved 18 October 2026. The SEC record may have been amended since.

Report a correction