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Brian Sullivan

OSAIC INSTITUTIONS
Lindenhurst, NY
·CRD# 2734412·25 years experience

Professional Summary

Brian Sullivan, who also goes by Brian Dennis Sullivan, is a registered financial advisor currently at OSAIC INSTITUTIONS, INC. located in Lindenhurst, New York. Brian is registered as an IAR (Investment Advisor Representative) and RR (Registered Representative) and started their career in finance in 1996. Brian has worked at 9 firms and has passed the Series 65, Series 63, Series 62, SIE, Series 55 and Series 7 exams.

At a Glance

Advisory Accounts Only

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Fiduciary Standard

Fee Structure

Account Minimum

Active Clients

Other Aliases

Brian Dennis Sullivan

Blog Corner

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Videos & Posts

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Contact Information

This advisor has not claimed their profile yet, so there is no contact information to display at this time.

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Disclosures are events reported to regulators, such as customer disputes, regulatory actions, employment separations, or financial events. Some are resolved, denied, or contested — a disclosure is not a verdict. We recommend asking an advisor directly about any disclosure on their record.

Disclosures on record.

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.

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Years of Experience

25 years in the financial services industry

Current & Past Employments

OSAIC INSTITUTIONS, INC.·CRD# 35371
RIA
BD
1. 151 E. Sunrise Highway, Lindenhurst, NY 117572. 151 East Sunrise Hwy, N. Lindenhurst, NY 11757
June 20, 2023 - Present
OSAIC INSTITUTIONS, INC.·CRD# 35371
RIA
BD
151 E. Sunrise Highway, Lindenhurst, NY 11757
June 20, 2023 - Present
TD PRIVATE CLIENT WEALTH LLC·CRD# 164484
RIA
Melville, NY
September 2, 2022 - May 19, 2023
TD PRIVATE CLIENT WEALTH LLC·CRD# 164484
BD
Melville, NY
August 11, 2022 - May 19, 2023
OSAIC INSTITUTIONS, INC.·CRD# 35371
BD
Bay Ridge, NY
July 1, 2016 - July 25, 2022
ESSEX NATIONAL SECURITIES, LLC·CRD# 25454
BD
Bensonhurst, NY
June 4, 2009 - July 1, 2016
CHASE INVESTMENT SERVICES CORP.·CRD# 25574
RIA
Brooklyn, NY
October 5, 2006 - May 15, 2009
CHASE INVESTMENT SERVICES CORP.·CRD# 25574
BD
Brooklyn, NY
September 5, 2006 - May 15, 2009
CAPITAL ONE INVESTMENT SERVICES LLC·CRD# 25658
BD
Melville, NY
January 3, 2005 - June 6, 2005
GREENPOINT SECURITIES LLC·CRD# 127042
BD
Lake Success, NY
January 2, 2004 - January 3, 2005
ESSEX NATIONAL SECURITIES, LLC·CRD# 25454
BD
Napa, CA
March 10, 2003 - January 2, 2004
GRACE FINANCIAL GROUP LLC·CRD# 104133
BD
Southhampton, NY
October 25, 2002 - February 28, 2003
NEW WORLD SECURITIES, INC.·CRD# 14694
BD
Garden City, NY
February 14, 1997 - August 26, 1997
ISLAND SECURITIES, INC.·CRD# 6810
BD
August 23, 1996 - March 5, 1997

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Current Firm

OI
OSAIC INSTITUTIONS, INC.

CONNECTICUT ASSOCIATION SECURITIES, INC. | OSAIC INSTITUTIONS, INC. | INFINEX INVESTMENTS, INC.

CRD#: 35371 / SEC#: 801-67242, 8-46661
RIA
Registered Investment Advisory firm - SEC (11/2/2006 Approved)
Connecticut
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
Florida
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
Indiana
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
Maine
Registered Investment Advisory firm - SEC (12/7/2006 Terminated)
Massachusetts
Registered Investment Advisory firm - SEC (3/23/2007 Terminated)
New Hampshire
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
Ohio
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
Pennsylvania
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
Rhode Island
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
BD
Broker-Dealer Firm Regulated by FINRA (Boston district office)
Why is a state registration marked "Terminated"? When a firm registers with the SEC (usually after managing $100M+ AUM), it often withdraws separate state firm registrations unless required by that state. The firm can still serve clients there through its individually registered Investment Advisor Representatives (IARs).

Contact Information

Main Address

538 Preston Avenue, Meriden, CT 06450-4858

Mailing Address

538 Preston Avenue, Meriden, CT 06450-4858

Phone Number

(203) 599-6000

Established

Connecticut since 04/07/1993

Firm Type

Corporation

Fiscal Year End

December

Firm Size

Large

# of Employees

1,839

SEC notice filing (53 States and Territories)

Registered to provide investment advisory services in 53 US states and territories.

FINRA licenses (53 States and Territories)

Registered to provide investment advisory services in 53 US states and territories.

Documents

Customer Relationship Summary (CRS / SEC)Customer Relationship Summary (CRS / FINRA)Latest Form ADV

Part 2 Brochures

ADV 2A (3/31/2026)

Direct owners and executive officers

NamePositionCRD#
OSAIC INSTITUTIONS HOLDINGS, INC.HOLDING COMPANY—
AMARANTE, STEPHEN PAULPRESIDENT, CEO AND DIRECTOR3165067
HAMMOND, DORI JAMILLECHIEF COMPLIANCE OFFICER3259012
MITCHELL, CHRISTOPHER MILLSCORPORATE TREASURER, FINANCIAL AND OPERATIONS PRINCIPAL2420144
PRICE, JAMES DALECHAIRMAN1243224
REID, SHANNONDIRECTOR4815189
SCHLUETER, MATTHEW ADAMDIRECTOR AND EXECUTIVE VICE PRESIDENT OPERATIONS AND TECHNOLOGY SOLUTIONS2627931

Regulatory Assets Under Management

Total Number of Accounts

11,892

AUM (Assets Under Management)

$6,494,001,878

Disclosures

Regulatory Event

9

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Other business activities

Information obtained from regulatory filings. Advisors can request corrections through their firm or regulator.

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.

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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".
OI
OSAIC INSTITUTIONS, INC.

CONNECTICUT ASSOCIATION SECURITIES, INC. | OSAIC INSTITUTIONS, INC. | INFINEX INVESTMENTS, INC.

CRD#: 35371 / SEC#: 801-67242, 8-46661
RIA
Registered Investment Advisory firm - SEC (11/2/2006 Approved)
Connecticut
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
Florida
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
Indiana
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
Maine
Registered Investment Advisory firm - SEC (12/7/2006 Terminated)
Massachusetts
Registered Investment Advisory firm - SEC (3/23/2007 Terminated)
New Hampshire
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
Ohio
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
Pennsylvania
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
Rhode Island
Registered Investment Advisory firm - SEC (11/22/2006 Terminated)
BD
Broker-Dealer Firm Regulated by FINRA (Boston district office)
Why is a state registration marked "Terminated"? When a firm registers with the SEC (usually after managing $100M+ AUM), it often withdraws separate state firm registrations unless required by that state. The firm can still serve clients there through its individually registered Investment Advisor Representatives (IARs).

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 securities offerings such as stocks, bonds, and mutual funds through a broker-dealer.
RR
New York
(6/20/2023)
IAR
New York
(6/20/2023)

Don't see your state listed? The advisor may still be able to work with you under the federal De Minimis Rule, which allows up to five investment advisory clients in a state without registration. Some states, like TX, LA, NE, and NH, may still require registration or notice filing. Contact the advisor or their firm to confirm their investment advisory availability in your state.Note:This rule does not apply to broker-dealer activity.

Exams

Financial professionals may take different exams throughout their careers based on the types of services they provide and roles they perform.

Series 65 — Uniform Investment Adviser Law Examination

Passed Sep 2022About the Series 65 exam

Series 63 — Uniform Securities Agent State Law Examination

Passed Aug 2002About the Series 63 exam

Series 62 — Corporate Securities Limited Representative Examination

Passed Jan 2023

SIE — Securities Industry Essentials Examination

Passed Oct 2018About the SIE exam

Series 55 — Limited Representative-Equity Trader Exam

Passed Dec 2002

Series 7 — General Securities Representative Examination

Passed Oct 2002About the Series 7 exam
FINRA
SRO Registrations

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CRS (Client Relationship Summary) - RIA

Click below to view Brian Sullivan's CRS (Customer Relationship Summary).

CRS (Customer Relationship Summary)

CRS (Client Relationship Summary) - BD

Click below to view Brian Sullivan's CRS (Customer Relationship Summary).

CRS (Customer Relationship Summary)

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