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Brian W. Katz
PROSPERITY - AN EISNERAMPER COMPANY
BOSTON, MA 02110
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CRD#: 4650594
BK
Brian William KatzPROSPERITY - AN EISNERAMPER COMPANY
Professional summary
Brian William Katz is a registered financial advisor currently at PROSPERITY - AN EISNERAMPER COMPANY located in Boston, Massachusetts.
Brian is registered as an IAR (Investment Advisor Representative) and started their career in finance in 2003. Brian has worked at 3 firms .
At a Glance
Always Fiduciary
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.
Name: Ares Management Investment-related: Yes Address of the other business: 2000 Avenue of the Stars, 12th Floor, Los Angeles, CA 90067 Nature of the other business: Ares is an alternative investment manager Position: Member, RIA Advisory Council Title, or relationship with the other business: Member, RIA Advisory Council Start date of your relationship: 05/14/2025 Approximate number of hours/month you devote to the other business: 8 hours per year Number of hours you devote to the other business during securities trading hours: 8 hours per year Briefly describe your duties relating to the other business: Commit to 3 meetings per year to discuss product development, fund structures, and other things relating to the needs of the wealth management industry Name: The Massachusetts Service Alliance (MSA) Investment-related: Yes Address of the other business: 98 N Washington St, Suite 400, Boston, MA 02114 Nature of the other business: Massachusetts Service Alliance (MSA), a nonprofit founded in 1991, builds the organizational capacity of hundreds of Massachusetts nonprofits, schools, and agencies annually through funding, training, and resources centered on volunteerism and service. Position: Investment Committee Member Title, or relationship with the other business: Investment Committee Member Start date of your relationship: 02/26/2013 Approximate number of hours/month you devote to the other business: 4 hours per year Number of hours you devote to the other business during securities trading hours: 4 hours per year Briefly describe your duties relating to the other business: Oversee and manage the assets of an endowment – less than $2 million dollars; cash flow needs of endowment – discuss rebalancing portfolio; in charge of trading. Name: BlackRock Investment-related: Yes Address of the other business: 50 Hudson Yards, New York, NY 10001 Nature of the other business: Asset management Position: Member, RIA Advisory Council Title, or relationship with the other business: Member, RIA Advisory Council Start date of your relationship: 05/01/2016 Approximate number of hours/month you devote to the other business: .4 hours per week, or approximately 21 hours per year or 1.75 hours per month. Number of hours you devote to the other business during securities trading hours: .4 Briefly describe your duties relating to the other business: Members help advise Blackrock on potential new products and overall business strategy.
CRS (Client Relationship Summary) - RIA
Click below to view Brian William Katz'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®
NoneExperience
Current
September 22, 2026 - Present
PROSPERITY - AN EISNERAMPER COMPANY
Office #1: 115 Federal Street Suite 901, Boston, MA 02110RIA
CRD#: 133777
BOSTON, MA
Past
January 3, 2012 - August 31, 2026
FOCUS PARTNERS WEALTH, LLC
RIA
CRD#: 159289
BOSTON, MA
Past
May 12, 2003 - December 21, 2011
THE COLONY GROUP, LLC
RIA
CRD#: 111806
BOSTON, 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".
P-
PROSPERITY - AN EISNERAMPER COMPANY
PROSPERITY - AN EISNERAMPER COMPANY | THE PROSPERITY CONSULTING GROUP, LLC | PROSPERITY, AN EISNERAMPER COMPANY
CRD#: 133777 / SEC#: 801-96321
RIA
Registered Investment Advisory firm - (5/18/2015 Approved)Florida
Registered Investment Advisory firm - (5/20/2015 Terminated)Maryland
Registered Investment Advisory firm - (5/19/2015 Terminated)Virginia
Registered Investment Advisory firm - (5/20/2015 Terminated)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.Highlighted states indicate IAR registrations
IAR
Massachusetts(9/22/2026)
Exams
What does exam status mean?
Current Firm
P-
PROSPERITY - AN EISNERAMPER COMPANY
PROSPERITY - AN EISNERAMPER COMPANY | THE PROSPERITY CONSULTING GROUP, LLC | PROSPERITY, AN EISNERAMPER COMPANY
CRD#: 133777 / SEC#: 801-96321
RIA
Registered Investment Advisory firm - (5/18/2015 Approved)Florida
Registered Investment Advisory firm - (5/20/2015 Terminated)Maryland
Registered Investment Advisory firm - (5/19/2015 Terminated)Virginia
Registered Investment Advisory firm - (5/20/2015 Terminated)Loading...
Contact information
Main Address
10065 Red Run Boulevard Suite 200, Owings Mills, MD 21117
Mailing Address
Phone number
(410) 363-7211
Established
Firm type
Fiscal year end
# of Employees
82
SEC notice filing (37 States and Territories)
Documents
Regulatory assets under management
| Total Number of Accounts | 7,473 |
| AUM (Assets Under Management) | $ 5,038,680,517 |
Red Flags
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Check for any disclosures as part of your thorough research when choosing an advisor.
