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Sean Hollitz

Managing Partner at Blackdiamond Wealth Management in New York, NY

Investment adviser and broker registrationsUpdated

Sean Hollitz is Managing Partner of Blackdiamond Wealth Management, LLC, an investment adviser managing $424M, and works from its New York, NY office. Sean Hollitz has been registered as an investment adviser representative through Blackdiamond Wealth Management since 2 May 2018, has 22 years in the industry across 2 firms and has passed the Series 55, Series 7, Series 63 and Series 99TO.

22
Years in industry
8
Years at firm
2
Adviser firms
3
States registered

From the IAPD record, checked 22 October 2026SEC record

Career

Sean Hollitz has been Managing Partner of Blackdiamond Wealth Management since April 2017, is a control person of the firm and directly owns 75% or more of it.

Blackdiamond Wealth Management, LLC is a New York, NY firm with $424M under management, 379 clients and 7 advisers across 3 offices, as of its July 2026 filing.

Sean Hollitz’s longest registration is the current one, 8 years at Blackdiamond Wealth Management since 2018. Before joining Blackdiamond Wealth Management in 2018, Sean Hollitz was registered through MML Investors Services, LLC.

  1. – present · 8 years
    New York, NY · Adviser representative · Firm CRD 291459
  2. MML Investors Services, LLC
    – · 3 years
    New York, NY · Adviser representative · Firm CRD 10409

Credentials and registrations

Investment adviser representative registrations

Sean Hollitz is registered as an investment adviser representative in 3 states, as a resident of Texas. The first approvals date from May 2018; the most recent is New York, in June 2021.

  • CaliforniaSince 2 May 2018
  • New YorkSince 7 June 2021
  • TexasResidentSince 21 October 2020

Examinations

Series 99TO2 January 2023
Name
Operations Professional Examination
SIECredited
Name
Securities Industry Essentials Examination
Series 6325 January 2006
Name
Uniform Securities Agent State Law Examination
Series 718 October 2005
Name
General Securities Representative Examination
Series 5528 August 2001
Name
Limited Representative-Equity Trader Exam

Key facts

Full name
Sean Merideth Hollitz
CRD
4085021
Role
Managing Partner
Office
31 HUDSON YARDS, FLOOR 10, SUITE 55, New York, NY 10001
Registration
Investment adviser and broker registrations
In the industry since
April 2004
Disciplinary history
Not yet shown here · SEC record · BrokerCheck

Common questions

Where does Sean Hollitz work?

Sean Hollitz has been Managing Partner of Blackdiamond Wealth Management, LLC since April 2017, and is a control person of the firm.

Source: Form ADV, Schedule A, filed 9 July 2026

Is Sean Hollitz a financial advisor?

Yes. Sean Hollitz has a current investment-adviser registration in California, New York and Texas, through Blackdiamond Wealth Management since May 2018.

Source: IAPD individual record, checked 22 October 2026

How many years of experience does Sean Hollitz have?

Sean Hollitz has 22 years in the financial industry, since April 2004, across 2 adviser firms.

Source: IAPD individual record, checked 22 October 2026

What exams has Sean Hollitz passed?

Sean Hollitz has passed 4 licensing exams: the Series 55, Series 7, Series 63 and Series 99TO. The earliest, the Series 55, was passed in August 2001. FINRA credited Sean Hollitz with the SIE, which began in October 2018.

Source: IAPD individual record, checked 22 October 2026

Where did Sean Hollitz work before Blackdiamond Wealth Management?

Before Blackdiamond Wealth Management, Sean Hollitz was registered through MML Investors Services, LLC, June 2014 to March 2018.

Source: IAPD individual record, checked 22 October 2026

Where is Sean Hollitz based?

Sean Hollitz’s registered office is in New York, NY.

Source: IAPD individual record, checked 22 October 2026

Is Sean Hollitz registered with FINRA?

Yes. Sean Hollitz has a current broker registration, under CRD 4085021.

Source: FINRA BrokerCheck

How can I verify Sean Hollitz’s record?

Search CRD 4085021 on the SEC’s adviser search (adviserinfo.sec.gov) and FINRA’s broker search (brokercheck.finra.org), which publish Sean Hollitz’s full registration record.

Source: IAPD individual record, checked 22 October 2026

Leadership at Blackdiamond Wealth Management

Sources

  1. IAPD individual record, CRD 4085021, checked 22 October 2026. Registration status, employment history and examinations.
  2. Form ADV Part 1A, Schedules A and B of Blackdiamond Wealth Management, LLC, filed 9 July 2026. Title, control and ownership bands.