Skip to content

John Marginson

Vice President at Brown, Lisle/Cummings

Broker registration; no current adviser registrationUpdated

John Marginson is Vice President of Brown, Lisle/Cummings, Inc., a Providence investment adviser managing $487M. John Marginson has a current broker registration and no current investment-adviser registration and has passed the Series 7, Series 63, Series 24 and Series 99TO.

4
Licensing exams

From the IAPD record, checked 22 October 2026SEC record

Career

John Marginson has been Vice President of Brown, Lisle/Cummings since January 1997, is a control person of the firm and directly owns between 10% and 25% of it.

Brown, Lisle/Cummings, Inc. is a Providence, RI firm with $487M under management, 238 clients and 8 advisers in one office, as of its June 2026 filing.

No adviser firm registrations are on John Marginson’s record.

Credentials and registrations

Examinations

Series 99TO2 January 2023
Name
Operations Professional Examination
SIECredited
Name
Securities Industry Essentials Examination
Series 246 March 1997
Name
General Securities Principal Examination
Series 6311 April 1990
Name
Uniform Securities Agent State Law Examination
Series 716 December 1978
Name
General Securities Representative Examination

Key facts

Full name
John Arthur Marginson
CRD
860727
Firm
Brown, Lisle/Cummings · CRD 1331
Role
Vice President
Registration
Broker registration; no current adviser registration
Disciplinary history
Not yet shown here · SEC record · BrokerCheck

Common questions

Where does John Marginson work?

John Marginson has been Vice President of Brown, Lisle/Cummings, Inc. since January 1997, and is a control person of the firm.

Source: Form ADV, Schedule A, filed 26 June 2026

Does John Marginson have a current investment-adviser registration?

John Marginson has a current broker registration and no current investment-adviser registration.

Source: IAPD individual record, checked 22 October 2026

What exams has John Marginson passed?

John Marginson has passed 4 licensing exams: the Series 7, Series 63, Series 24 and Series 99TO. The earliest, the Series 7, was passed in December 1978. FINRA credited John Marginson with the SIE, which began in October 2018.

Source: IAPD individual record, checked 22 October 2026

Is John Marginson registered with FINRA?

Yes. John Marginson has a current broker registration, under CRD 860727.

Source: FINRA BrokerCheck

How can I verify John Marginson’s record?

Search CRD 860727 on the SEC’s adviser search (adviserinfo.sec.gov) and FINRA’s broker search (brokercheck.finra.org), which publish John Marginson’s full registration record.

Source: IAPD individual record, checked 22 October 2026

Leadership at Brown, Lisle/Cummings

Sources

  1. IAPD individual record, CRD 860727, checked 22 October 2026. Registration status, employment history and examinations.
  2. Form ADV Part 1A, Schedules A and B of Brown, Lisle/Cummings, Inc., filed 26 June 2026. Title, control and ownership bands.