James S. Rubinstein
Professional summary
James Samuel Rubinstein, who also goes by James Rubinstein, is a registered financial professional currently at INTERACTIVE BROKERS CORP. located in Greenwich, Connecticut and INTERACTIVE BROKERS LLC located in Greenwich, Connecticut.
James is registered as a RR (Registered Representative) and started their career in finance in 1999. James has worked at 9 firms and has passed the Series 63, SIE, Series 57, Series 3, Series 55, Series 7 and Series 24 exams.
Question & Answer
Aliases
Other business activities
CRS (Client Relationship Summary) - BD
Click below to view James Samuel Rubinstein's CRS (Customer Relationship Summary).
Certified licenses
Experience
June 25, 2025 - Present
INTERACTIVE BROKERS CORP.
Office #1: Pickwick Plaza, Greenwich, CT 06830July 16, 2025 - Present
INTERACTIVE BROKERS LLC
Office #1: Pickwick Plaza, Greenwich, CT 06830February 28, 2022 - May 31, 2023
LIQUIDNET, INC.
March 30, 2021 - December 24, 2021
BNP PARIBAS SECURITIES CORP.
October 11, 2018 - April 13, 2021
DEUTSCHE BANK SECURITIES INC.
June 14, 2006 - July 12, 2018
UBS SECURITIES LLC
October 20, 2004 - June 12, 2006
FLEXTRADE LLC
August 1, 2000 - November 20, 2002
INSTINET, LLC
September 24, 1999 - August 1, 2000
REUTERS C CORPORATION
State Registrations and Notice Filings
Listed states reflect where the advisor is authorized to serve clients under state regulations.
Visual representation of state registrations
(8/18/2025)
(8/15/2025)
(7/24/2025)
(8/20/2025)
(8/18/2025)
(7/16/2025)
(6/25/2025)
(8/18/2025)
(7/17/2025)
(7/16/2025)
(8/18/2025)
(8/19/2025)
(7/21/2025)
(7/16/2025)
(8/29/2025)
(8/19/2025)
(8/18/2025)
(7/16/2025)
(7/16/2025)
(8/18/2025)
(7/17/2025)
(8/18/2025)
(7/16/2025)
(7/16/2025)
(7/16/2025)
(8/18/2025)
(7/16/2025)
(7/16/2025)
(8/17/2025)
(8/18/2025)
(6/25/2025)
(8/17/2025)
(8/17/2025)
(8/18/2025)
(8/18/2025)
(8/20/2025)
(7/16/2025)
(8/18/2025)
(8/18/2025)
(10/23/2025)
(8/18/2025)
(7/16/2025)
(7/16/2025)
(8/18/2025)
(7/16/2025)
(8/19/2025)
(8/25/2025)
(8/21/2025)
(8/21/2025)
(8/15/2025)
(8/21/2025)
(8/19/2025)
(8/18/2025)
Exams
Series 55
Date: 4/26/2000
Limited Representative-Equity Trader ExamBOX 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
INTERACTIVE BROKERS LLC
CRD#: 36418 / SEC#: , 8-47257
Contact information
FINRA licenses (53 States and Territories)
Direct owners and executive officers
| Name | Position | CRD# |
|---|---|---|
| IBG LLC | MANAGING MEMBER | |
| BRODY, PAUL JONATHAN | SECRETARY, PRINCIPAL OPERATIONS OFFICER | 1722066 |
| CHAIT, JONATHAN | EXECUTIVE VICE PRESIDENT, COO | 4582696 |
| FRIEDLAND, DAVID ERIC | MANAGING DIRECTOR-ASIAN OPERATIONS | 2715164 |
| GALIK, MILAN | CHIEF EXECUTIVE OFFICER | 2204066 |
| GELMAN, JONATHAN MICHAEL | CHIEF COMPLIANCE OFFICER | 5440103 |
| MANDELBAUM, ELAINE | GENERAL COUNSEL | 2957713 |
| MENICUCCI, JAMES | PRINCIPAL FINANCIAL OFFICER | 6590173 |
| SANDERS, STEVEN JAY | SENIOR VICE PRESIDENT, MARKETING AND PRODUCT DEVELOPMENT | 2812548 |
| SHAO-CHEN, KENGNING | TREASURER | 5910386 |
Disclosures
| Regulatory Event | 93 |
| Arbitration | 26 |
Red Flags
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