Brien J. Dubois
Professional summary
Brien John Dubois, who also goes by Brien Dubois, Brien John John Dubois, is a registered financial professional currently at MORGAN STANLEY & CO. LLC located in New York, New York.
Brien is registered as a RR (Registered Representative) and started their career in finance in 2003. Brien has worked at 7 firms and has passed the Series 63, Series 99TO, Series 57TO, SIE, Series 7 and Series 24 exams.
Question & Answer
Aliases
Other business activities
CRS (Client Relationship Summary) - BD
Click below to view Brien John Dubois's CRS (Customer Relationship Summary).
Certified licenses
Experience
October 31, 2025 - Present
MORGAN STANLEY & CO. LLC
Office #1: 1633 Broadway, New York, NY 10019January 26, 2024 - September 18, 2025
UBS SECURITIES LLC
September 22, 2022 - January 26, 2024
CREDIT SUISSE SECURITIES (USA) LLC
May 17, 2018 - September 15, 2022
WELLS FARGO SECURITIES, LLC
November 10, 2015 - May 30, 2018
GOLDMAN SACHS & CO. LLC
January 1, 2005 - December 15, 2016
GOLDMAN SACHS EXECUTION & CLEARING, L.P.
September 26, 2003 - November 16, 2004
AGS SPECIALISTS LLC
State Registrations and Notice Filings
Listed states reflect where the advisor is authorized to serve clients under state regulations.
Visual representation of state registrations
(10/31/2025)
Exams
Series 99TO
Date: 1/2/2023
Operations Professional ExaminationSeries 57TO
Date: 1/2/2023
Securities Trader Exam24X National Exchange LLC
BOX Exchange LLC
Cboe BYX Exchange, Inc.
Cboe BZX Exchange, Inc.
Cboe C2 Exchange, Inc.
Cboe EDGA Exchange, Inc.
Cboe EDGX Exchange, Inc.
Cboe Exchange, Inc.
FINRA
Investors' Exchange LLC
Long-Term Stock Exchange, Inc.
MEMX LLC
MIAX Emerald, LLC
MIAX PEARL, LLC
MIAX Sapphire
Miami International Securities Exchange, LLC
NYSE American LLC
NYSE Arca, Inc.
NYSE National, Inc.
NYSE Texas, Inc.
Nasdaq BX, Inc.
Nasdaq GEMX, LLC
Nasdaq ISE, LLC
Nasdaq MRX, LLC
Nasdaq PHLX LLC
Nasdaq Stock Market
New York Stock Exchange
Current Firm
MORGAN STANLEY & CO. LLC
CRD#: 8209 / SEC#: , 8-15869
Contact information
FINRA licenses (53 States and Territories)
Direct owners and executive officers
| Name | Position | CRD# |
|---|---|---|
| MORGAN STANLEY CAPITAL MANAGEMENT, LLC | MEMBER | |
| BERKE, MATTHEW EVAN | CHAIRMAN, PRESIDENT, CHIEF EXECUTIVE OFFICER, AND DIRECTOR | 2524594 |
| BHAIMIA, ISMAIL OMAR | DIRECTOR | 6264162 |
| DAMAST, EVAN SCOTT | DIRECTOR | 3198635 |
| HENNESSEY, JACQUELINE A | TEXAS DESIGNATED PRINCIPAL | 2194034 |
| KRAUSE, GARD J | CHIEF COMPLIANCE OFFICER | 2284628 |
| LYNN, GARY MICHAEL | PRINCIPAL FINANCIAL OFFICER | 2162411 |
| MACEJKA, PATRICK NMN | DIRECTOR | 2139145 |
| MORANO, DAVID | PRINCIPAL OPERATIONS OFFICER | 2189287 |
| STERN, MICHAEL A | DIRECTOR | 4939073 |
Disclosures
| Regulatory Event | 487 |
| Civil Event | 5 |
| Arbitration | 56 |
Red Flags
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