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JK

Jack A. Krumbein

GT SECURITIES
Los Angeles, CA 90094
Some features on this profile are disabled
CRD#: 4162893
JK

Professional summary

Jack Andreas Krumbein, who also goes by Jack A. Krumbein, Jack Andreas Krumbein Mejia, is a registered financial professional currently at GT SECURITIES, INC. located in Los Angeles, California.

Jack is registered as a RR (Registered Representative) and started their career in finance in 2000. Jack has worked at 3 firms and has passed the Series 63, Series 65, Series 79TO, SIE and Series 7 exams.

Question & Answer

Are you a "fiduciary"?
No

Aliases

Jack A. Krumbein | Jack Andreas Krumbein Mejia

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 Jack Andreas Krumbein's CRS (Customer Relationship Summary).
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

February 21, 2026 - Present

GT SECURITIES, INC.

Office #1: 12130 Millennium Dr Suite 300, Los Angeles, CA 90094
BD
CRD#: 116012
Los Angeles, CA
Past

November 21, 2000 - June 18, 2001

MORGAN STANLEY DW INC.

BD
CRD#: 7556
PURCHASE, NY
Past

August 15, 2000 - November 8, 2000

INTERFIRST CAPITAL CORPORATION

BD
CRD#: 7659
LOS ANGELES, CA

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
California
(2/21/2026)
RR
Florida
(2/21/2026)

Exams

State Security Law Exam
RR
Series 63
Date: 11/25/2025
Uniform Securities Agent State Law Examination
State Security Law Exam
IAR
Series 65
Date: 9/13/2025
Uniform Investment Adviser Law Examination
General Industry/Product Exam
RR
Series 79TO
Date: 2/21/2026
Investment Banking Registered Representative Examination
General Industry/Product Exam
RR
SIE
Date: 11/1/2025
Securities Industry Essentials Examination
General Industry/Product Exam
RR
Series 7
Date: 8/14/2000
General Securities Representative Examination
SRO Registrations
RR
FINRA

Current Firm

GS
GT SECURITIES, INC.
GROWTHINK SECURITIES, INC. | GT SECURITIES, INC. | GROWTHINK, INC.

CRD#: 116012 / SEC#: , 8-53527

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

Main Address
12130 Millennium Dr Suite 300, Los Angeles, CA 90094
Mailing Address
12130 Millennium Dr, Los Angeles, CA 90094
Phone number
(310) 846-5004
Established
California since 12/06/2001
Firm type
Corporation
Fiscal year end
December
Firm Size
Medium
# of Employees

FINRA licenses (51 States and Territories)

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

Documents

Customer Relationship Summary (CRS / FINRA)

Direct owners and executive officers

NamePositionCRD#
GROWTHINK, INC.PARENT CORPORATION
MUELLER, MICHELLECHIEF COMPLIANCE OFFICER6707697
TURO, JAMES STEVENMANAGING DIRECTOR2083402

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

GT SECURITIES, INC.

CRD#: 116012Los Angeles, CA 90094

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