John J. Finn
Professional summary
John Joseph Finn III, who also goes by John Joseph Finn III, is a registered financial professional currently at RAINBRIDGE SECURITIES LLC located in New York, New York.
John is registered as a RR (Registered Representative) and started their career in finance in 2004. John has worked at 7 firms and has passed the Series 63, Series 66, Series 3, SIE, Series 7 and Series 24 exams.
Question & Answer
Aliases
Other business activities
CRS (Client Relationship Summary) - BD
Click below to view John Joseph Finn III's CRS (Customer Relationship Summary).
Certified licenses
Experience
January 2, 2026 - Present
RAINBRIDGE SECURITIES LLC
Office #1: 485 Madison Avenue 15th Floor, New York, NY 10022September 21, 2022 - January 16, 2026
JONESTRADING
March 29, 2018 - September 20, 2022
STIFEL, NICOLAUS & COMPANY, INCORPORATED
July 9, 2013 - March 29, 2018
EATON PARTNERS, LLC
December 22, 2012 - July 12, 2013
J.P. MORGAN SECURITIES LLC
July 21, 2006 - March 25, 2008
J.P. MORGAN CLEARING CORP.
July 21, 2006 - March 25, 2008
J.P. MORGAN SECURITIES LLC
August 23, 2004 - July 13, 2006
CITIGROUP GLOBAL MARKETS INC.
State Registrations and Notice Filings
Listed states reflect where the advisor is authorized to serve clients under state regulations.
Visual representation of state registrations
(2/24/2026)
(1/2/2026)
Exams
FINRA
Current Firm
RAINBRIDGE SECURITIES LLC
CRD#: 334916 / SEC#: , 8-71373
Contact information
FINRA licenses (6 States and Territories)
Documents
Red Flags
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