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JM

Jonathan B. Marston

FLAGSHIP HARBOR ADVISORS
BOSTON, MA 02109
Some features on this profile are disabled
CRD#: 6768715
JM

Professional summary

Jonathan Brooks Marston, who also goes by Jonathan Brooks Marston II, Jonathan Marston, Brooks Jonathan Marston, Jonathan Brooks Marston, is a registered financial advisor currently at FLAGSHIP HARBOR ADVISORS, LLC located in Boston, Massachusetts and LPL FINANCIAL LLC located in Boston, Massachusetts.

Jonathan is registered as an IAR (Investment Advisor Representative) and RR (Registered Representative) and started their career in finance in 2018. Jonathan has worked at 4 firms and has passed the Series 66, Series 7TO, SIE and Series 99 exams.

Question & Answer

Are you a "fiduciary"?
Yes

Aliases

Jonathan Brooks Marston Ii | Jonathan Marston | Brooks Jonathan Marston | Jonathan Brooks Marston

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) - RIA

Click below to view Jonathan Brooks Marston'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

January 27, 2026 - Present

FLAGSHIP HARBOR ADVISORS, LLC

Office #1: 346 Commercial Street, Boston, MA 02109
RIA
CRD#: 155733
BOSTON, MA
Current

March 14, 2025 - Present

LPL FINANCIAL LLC

Office #1: 346 Commercial St, Boston, MA 02109
RIA
BD
CRD#: 6413
BOSTON, MA
Past

June 28, 2022 - January 6, 2025

NATIONAL FINANCIAL SERVICES LLC

BD
CRD#: 13041
SMITHFIELD, RI
Past

February 22, 2018 - May 13, 2022

CANTELLA & CO., INC.

BD
CRD#: 13905
Malden, MA

Primary Firm SEC Registration

This SEC-registered firm can serve clients nationwide. Some states may require the firm to submit a notice filing if the firm has more than 5 clients or a physical office there. You can view these state-level filings under the section titled "State Registrations and Notice Filings".
FH
FLAGSHIP HARBOR ADVISORS, LLC
3MERITUS WEALTH MANAGEMENT | TRESTLEBRIDGE CAPITAL | TINKHAM WEALTH MANAGEMENT | THRIVE WEALTH STRATEGIES | THORNE FINANCIAL PARTNERS | SHEVLIN WEALTH MANAGEMENT | SHEPARD FINANCIAL | SEASHORE FINANCIAL | SCHRUMM FINANCIAL | RISING TIDE CAPITAL | PARKER WEALTH MANAGEMENT | PARADIGM PRIVATE WEALTH | NORTHERN PEAK WEALTH MANAGEMENT | NORTHERN PEAK FINANCIAL | MUNROE MORROW WEALTH MANAGEMENT | MIRICA WEALTH | MCGUIGAN FINANCIAL | MAITLAND FINANCIAL GROUP | LAURENZ FINANCIAL | KEFAUVER FINANCIAL PLANNING & WEALTH MANAGEMENT | KARRIS & CO. | INTEGRITAS FINANCIAL ADVISORS | GOLDSON FINANCIAL | FLAGSHIP HARBOR ADVISORS, LLC | FIELDSTONE WEALTH MANAGEMENT | FENTON FINANCIAL GROUP | CURRENCY CAMP | CONCIERGE WEALTH MANAGEMENT | CHARTHOUSE CAPITAL | BRANDT WEALTH ADVISORS | BERRY MANAGEMENT, LLC | BERGSTRESSER FINANCIAL | AVERY WEALTH MANAGEMENT | ATLAS PRIVATE WEALTH ADVISORS | ARC FINANCIAL | ANDREASEN FINANCIAL

CRD#: 155733 / SEC#: 801-71997

RIA
Registered Investment Advisory firm - (12/8/2010 Approved)

State Registrations and Notice Filings

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

IAR
means the advisor is registered as an Investment Advisor Representative in this state and is authorized to provide investment advice to clients there.
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
Massachusetts
(6/18/2025)
IAR
Massachusetts
(1/27/2026)

Exams

State Security Law Exam
RR
IAR
Series 66
Date: 6/18/2025
Uniform Combined State Law Examination
General Industry/Product Exam
RR
Series 7TO
Date: 5/8/2021
General Securities Representative Examination
General Industry/Product Exam
RR
SIE
Date: 10/1/2018
Securities Industry Essentials Examination
General Industry/Product Exam
RR
Series 99
Date: 2/22/2018
Operations Professional Examination
SRO Registrations
RR
FINRA

Current Firm

FH
FLAGSHIP HARBOR ADVISORS, LLC
3MERITUS WEALTH MANAGEMENT | TRESTLEBRIDGE CAPITAL | TINKHAM WEALTH MANAGEMENT | THRIVE WEALTH STRATEGIES | THORNE FINANCIAL PARTNERS | SHEVLIN WEALTH MANAGEMENT | SHEPARD FINANCIAL | SEASHORE FINANCIAL | SCHRUMM FINANCIAL | RISING TIDE CAPITAL | PARKER WEALTH MANAGEMENT | PARADIGM PRIVATE WEALTH | NORTHERN PEAK WEALTH MANAGEMENT | NORTHERN PEAK FINANCIAL | MUNROE MORROW WEALTH MANAGEMENT | MIRICA WEALTH | MCGUIGAN FINANCIAL | MAITLAND FINANCIAL GROUP | LAURENZ FINANCIAL | KEFAUVER FINANCIAL PLANNING & WEALTH MANAGEMENT | KARRIS & CO. | INTEGRITAS FINANCIAL ADVISORS | GOLDSON FINANCIAL | FLAGSHIP HARBOR ADVISORS, LLC | FIELDSTONE WEALTH MANAGEMENT | FENTON FINANCIAL GROUP | CURRENCY CAMP | CONCIERGE WEALTH MANAGEMENT | CHARTHOUSE CAPITAL | BRANDT WEALTH ADVISORS | BERRY MANAGEMENT, LLC | BERGSTRESSER FINANCIAL | AVERY WEALTH MANAGEMENT | ATLAS PRIVATE WEALTH ADVISORS | ARC FINANCIAL | ANDREASEN FINANCIAL

CRD#: 155733 / SEC#: 801-71997

RIA
Registered Investment Advisory firm - (12/8/2010 Approved)
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Contact information

Main Address
346 Commercial Street, Boston, MA 02109
Mailing Address
Phone number
(857) 350-4229
Established
Firm type
Fiscal year end
# of Employees
61

SEC notice filing (36 States and Territories)

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

Documents

Customer Relationship Summary (CRS / SEC)Latest Form ADV

Part 2 Brochures

FLAGSHIP HARBOR ADVISORS, LLC DISCLOSURE BROCHURE (1/28/2026)
FLAGSHIP HARBOR ADVISORS, LLC WRAP FEE BROCHURE (1/28/2026)

Regulatory assets under management

Total Number of Accounts12,815
AUM (Assets Under Management)$ 3,419,401,101

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

FLAGSHIP HARBOR ADVISORS, LLC

CRD#: 155733Boston, MA 02109

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