William A. O'brien
Professional summary
William A. O'brien, CFP®, CPWA®, who also goes by William Anthony O'brien, William Anthony Obrien, is a registered financial advisor currently at STRATEGIC ADVISERS LLC located in Houston, Texas and FIDELITY BROKERAGE SERVICES LLC located in Katy, Texas.
William is registered as an IAR (Investment Advisor Representative) and RR (Registered Representative) and started their career in finance in 1993. William has worked at 7 firms and has passed the Series 65, Series 63, SIE, Series 7, Series 3 and Series 55 exams.
Biography
Question & Answer
Aliases
Other business activities
CRS (Client Relationship Summary) - RIA
Click below to view William A. O'brien's CRS (Customer Relationship Summary).
Certified licenses
Start date: 2022-05-17
Expire date: 2024-04-30
Education
Syracuse University
Bachelor of Science (BS) - Finance
1991
Experience
March 31, 2025 - Present
STRATEGIC ADVISERS LLC
Office #2: 23501 Cinco Ranch Blvd Bld C, Suite C-150, Katy, TX 77494-3095November 19, 2012 - Present
FIDELITY BROKERAGE SERVICES LLC
Office #1: 23501 Cinco Ranch Blvd Bld C, Suite C-150, Katy, TX 77494-3095July 13, 2018 - March 31, 2025
FIDELITY PERSONAL AND WORKPLACE ADVISORS
September 3, 2013 - July 13, 2018
STRATEGIC ADVISERS LLC
October 15, 2010 - May 31, 2012
MAXIM GROUP LLC
June 16, 2003 - October 30, 2003
FIRST AMERICAN CAPITAL AND TRADING CORPORATION
May 5, 2003 - June 16, 2003
LADENBURG THALMANN & CO. INC.
April 7, 1993 - June 28, 2002
DEUTSCHE IXE, LLC
Primary Firm SEC Registration
STRATEGIC ADVISERS LLC
CRD#: 104555 / SEC#: 801-13243
State Registrations and Notice Filings
Listed states reflect where the advisor is authorized to serve clients under state regulations.
Visual representation of state registrations
(9/17/2024)
(4/28/2025)
(4/11/2022)
(1/6/2023)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(7/13/2020)
(10/22/2021)
(4/28/2025)
(4/28/2025)
(12/3/2024)
(10/8/2021)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(4/28/2021)
(4/28/2025)
(4/28/2025)
(8/25/2023)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(4/28/2021)
(4/28/2021)
(4/28/2025)
(5/6/2022)
(4/28/2025)
(4/29/2025)
(1/2/2015)
(4/28/2025)
(5/20/2023)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(11/19/2012)
(3/31/2025)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(4/28/2025)
(1/13/2020)
(4/28/2025)
(4/28/2025)
(4/28/2025)
Exams
Series 55
Date: 7/12/1999
Limited Representative-Equity Trader ExamFINRA
New York Stock Exchange
Current Firm
STRATEGIC ADVISERS LLC
CRD#: 104555 / SEC#: 801-13243
Contact information
SEC notice filing (52 States and Territories)
Documents
Regulatory assets under management
| Total Number of Accounts | 2,486,631 |
| AUM (Assets Under Management) | $ 1,067,664,605,590 |
Accountant surprise examination report
| Filing Date | Form ADV-E Cover | Form ADV-E Report |
|---|---|---|
| 09/24/2025 |
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
STRATEGIC ADVISERS LLC
Vice President, Wealth PlannerCRD#: 104555Houston, TXTRUST BUT VERIFY
Monitor William O'brien
Get automatic monthly alerts on: