AdvisorCheck - Find and Connect with Top Financial Advisors on Your Terms
Why Advisor Check
GB

Gavin T. Byrnes

Some features on this profile are disabled
CRD#: 6966266
GB

Professional summary


Being a previously registered professional could mean that this person is no longer operating under the supervision of the SEC or FINRA.

That means that the Securities and Exchange Commission may not be able to oversee the services that this specific professional is providing.

Gavin Thomas Byrnes was a registered financial professional .

Gavin is a previously registered financial professional and started their career in finance in 2018. Gavin had worked at 5 firms and has passed the Series 63, Series 57TO, SIE, Series 7 and Series 24 exams.

top-8-questions

Question & Answer


Are you a "fiduciary"?
No

Aliases


None

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)


The CRS(Customer Relationship Summary) document is not provided.

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


Past

July 25, 2024 - October 17, 2025

CITADEL SECURITIES LLC

BD
CRD#: 116797
New York, NY
Past

July 25, 2024 - October 17, 2025

CITADEL SECURITIES INSTITUTIONAL LLC

BD
CRD#: 281102
New York, NY
Past

October 24, 2022 - May 30, 2024

JANE STREET EXECUTION SERVICES, LLC

BD
CRD#: 167280
New York, NY
Past

October 13, 2022 - May 30, 2024

JANE STREET OPTIONS, LLC

BD
CRD#: 134159
NEW YORK, NY
Past

September 27, 2018 - May 30, 2024

JANE STREET CAPITAL, LLC

BD
CRD#: 103782
New York, NY

State Registrations and Notice Filings


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

Visual representation of state registrations

This advisor is not registered in any state.

Exams


State Security Law Exam
RR
Series 63
Date: 10/24/2022
Uniform Securities Agent State Law Examination
General Industry/Product Exam
RR
Series 57TO
Date: 10/18/2018
Securities Trader Exam
General Industry/Product Exam
General Industry/Product Exam
Principal/Supervisory Exam
RR
Series 24
Date: 10/17/2024
General Securities Principal Examination

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)
Upgrade to AdvisorCheck Premium
Get A Biweekly Pulse, AutomaticallyReceive biweekly alerts automatically. Stay informed and proactive.
Catch Firm-Level Red Flags SoonerCatch leadership changes and disclosures early, before issues escalate.
See Trends. Not Just SnapshotsMonitor firm stability metrics like AUM and advisor ratios over time.

Contact information


Main Address
830 Brickell Plaza, Miami, FL 33131
Mailing Address
830 Brickell Plaza, 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)


Blank US states mapAlaskaHawaiiAlabamaArkansasArizonaCaliforniaColoradoConnecticutDelawareFloridaGeorgiaIowaIdahoIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew HampshireNew JerseyNew MexicoNevadaNew YorkOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVirginiaVermontWisconsinWest VirginiaWyoming

Documents


Direct owners and executive officers


NamePositionCRD#
CSHC US LLCOWNER
ZHAO, PENGCHIEF EXECUTIVE OFFICER4978269
CITADEL SECURITIES GROUP LP (FKA CALC IV LP)MANAGING MEMBER
HAROLD, MARC RYANCHIEF COMPLIANCE OFFICER3200916
HENRY, STEVEN MICHAELCHIEF ACCOUNTING OFFICER5587809

Disclosures


Regulatory Event75
Arbitration1

Red Flags


Disclosures can be potential red flags, including customer disputes, regulatory fines, employer terminations, bankruptcies, judgments, liens, or certain criminal activities.

Check for any disclosures as part of your thorough research when choosing an advisor.

Company Information


CITADEL SECURITIES LLC

CRD#: 116797

TRUST BUT VERIFY

Monitor Gavin Byrnes

Get automatic monthly alerts on:
Job or Firm Moves
Licensing Changes
Client Complaints
New Red Flags
Contact Information Updates

Similar Advisors


Stephen Albert Zahka
Stephen ZahkaAdvisorCheck Check Mark
EDWARD JONES
IAR
RR
Marlborough, MA
Frank Horace Moore III
Frank MooreAdvisorCheck Check Mark
UBS FINANCIAL SERVICES INC.
IAR
RR
Greenwich, CT
Marshall Lee Rosen
Marshall RosenAdvisorCheck Check Mark
OSAIC WEALTH, INC.
IAR
RR
Fort Lauderdale, FL
footer-logo

AdvisorCheck does not offer investment advice and should not replace discussions with professional accounting, tax, legal or financial advisors.
© 2025 AdvisorCheck, an AIMR Analytics company.
All rights reserved.
Powered ByAIRM Analytics