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Griffin E. Mcdermott

CITADEL SECURITIES INSTITUTIONAL
New York, NY 10022
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CRD#: 7479988
GM
Griffin E McdermottCITADEL SECURITIES INSTITUTIONAL

Professional summary

Griffin E Mcdermott, who also goes by Mcdermott E Griffin, Griffin Eagan Mcdermott, is a registered financial professional currently at CITADEL SECURITIES INSTITUTIONAL LLC located in New York, New York and CITADEL SECURITIES LLC located in New York, New York.

Griffin is registered as a RR (Registered Representative) and started their career in finance in 2024. Griffin has worked at 4 firms and has passed the Series 66, Series 7TO and SIE exams.

Aliases

Mcdermott E Griffin | Griffin Eagan Mcdermott

Other business activities

Outside business activity is any business or activity undertaken by an advisor that is outside the scope of their relationship with their firm (e.g., consulting services, real estate, freelance work, teaching, etc.). Investors should stay informed about these activities to ensure no conflicts of interest.
The advisor shows no other business activity.

Blog Corner

CRS (Client Relationship Summary) - BD

Click below to view Griffin E Mcdermott's CRS (Customer Relationship Summary).

Certified licenses

Advisors may have various certifications and credentials from different organizations. AdvisorCheck highlights these seven certifications - AIF®, CFP®, ChFC®, CFA, CLU®, CIMA®, CPWA®
None

Experience

Current

August 25, 2026 - Present

CITADEL SECURITIES INSTITUTIONAL LLC

Office #1: 425 Park Avenue, New York, NY 10022
BD
CRD#: 281102
New York, NY
Current

August 25, 2026 - Present

CITADEL SECURITIES LLC

Office #1: 425 Park Avenue, New York, NY 10022
BD
CRD#: 116797
New York, NY
Past

November 22, 2024 - September 1, 2026

BLACKROCK INVESTMENT MANAGEMENT, LLC

RIA
CRD#: 108928
New York, NY
Past

September 21, 2024 - September 1, 2026

BLACKROCK INVESTMENTS, LLC

BD
CRD#: 38642
NEW YORK, NY

State Registrations and Notice Filings

Listed states reflect where the advisor is authorized to serve clients under state regulations.

RR
indicates the advisor is registered as a Registered Representative in this state, allowing them to offer securities such as stocks, bonds, and mutual funds through a broker-dealer.

Visual representation of state registrations

RR
Alabama
(8/25/2026)
RR
Alaska
(8/25/2026)
RR
California
(8/25/2026)
RR
Florida
(8/25/2026)
RR
Illinois
(8/25/2026)
RR
Indiana
(8/25/2026)
RR
Louisiana
(8/25/2026)
RR
Michigan
(8/25/2026)
RR
Montana
(8/25/2026)
RR
New York
(8/25/2026)
RR
Ohio
(8/25/2026)
RR
Pennsylvania
(8/25/2026)
RR
Puerto Rico
(8/25/2026)
RR
Rhode Island
(8/25/2026)
RR
Texas
(8/25/2026)
RR
Virginia
(8/25/2026)
RR
Washington
(8/25/2026)
RR
West Virginia
(8/25/2026)
RR
Wyoming
(8/25/2026)

Exams

What does exam status mean?
State Security Law Exam
RR
PR
Series 66
Status Unavailable
Passed: 11/22/2024
Uniform Combined State Law Examination
General Industry/Product Exam
RR
Series 7TO
Status Unavailable
Passed: 9/20/2024
General Securities Representative Examination
General Industry/Product Exam
RR
SIE
Status Unavailable
Passed: 6/27/2024
Securities Industry Essentials Examination
SRO Registrations
RR
24X National Exchange LLC
SRO Registrations
RR
BOX Exchange LLC
SRO Registrations
RR
Cboe BYX Exchange, Inc.
SRO Registrations
RR
Cboe BZX Exchange, Inc.
SRO Registrations
RR
Cboe C2 Exchange, Inc.
SRO Registrations
RR
Cboe EDGA Exchange, Inc.
SRO Registrations
RR
Cboe EDGX Exchange, Inc.
SRO Registrations
RR
Cboe Exchange, Inc.
SRO Registrations
RR
FINRA
SRO Registrations
RR
Investors' Exchange LLC
SRO Registrations
RR
Long-Term Stock Exchange, Inc.
SRO Registrations
RR
MEMX LLC
SRO Registrations
RR
MIAX Emerald, LLC
SRO Registrations
RR
MIAX PEARL, LLC
SRO Registrations
RR
MIAX Sapphire
SRO Registrations
RR
Miami International Securities Exchange, LLC
SRO Registrations
RR
NYSE American LLC
SRO Registrations
RR
NYSE Arca, Inc.
SRO Registrations
RR
NYSE National, Inc.
SRO Registrations
RR
NYSE Texas, Inc.
SRO Registrations
RR
Nasdaq GEMX, LLC
SRO Registrations
RR
Nasdaq ISE, LLC
SRO Registrations
RR
Nasdaq MRX, LLC
SRO Registrations
RR
Nasdaq PHLX LLC
SRO Registrations
RR
Nasdaq Stock Market
SRO Registrations
RR
Nasdaq Texas, LLC
SRO Registrations
RR
New York Stock Exchange
SRO Registrations
RR
Texas Stock Exchange LLC

Current Firm

CS
CITADEL SECURITIES LLC
CITADEL DERIVATIVES GROUP LLC | CITADEL SECURITIES LLC

CRD#: 116797 / SEC#: , 8-53574

BD
Broker-Dealer Firm Regulated by FINRA (Florida district office)
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Contact information

Main Address
830 Brickell Plaza Floor 15, Miami, FL 33131
Mailing Address
830 Brickell Plaza Floor 15, Miami, FL 33131
Phone number
(305) 929-6851
Established
Delaware since 07/30/2001
Firm type
Limited Liability Company
Fiscal year end
December
Firm Size
Large
# of Employees

FINRA licenses (15 States and Territories)

Documents

Direct owners and executive officers

NamePositionCRD#
CSHC US LLCOWNER
ZHAO, PENGCHIEF EXECUTIVE OFFICER4978269
CARROLL, SEAN VINCENTPRINCIPAL OPERATIONS OFFICER2518443
CITADEL SECURITIES GROUP LP (FKA CALC IV LP)MANAGING MEMBER
HENRY, STEVEN MICHAELCHIEF ACCOUNTING OFFICER AND FINOP5587809
LEVY, SETH GARDNERCHIEF COMPLIANCE OFFICER7718259

Disclosures

Regulatory Event76
Arbitration1

Red Flags

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Company Information

CITADEL SECURITIES LLC

CRD#: 116797New York, NY 10022

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