William Joseph O'neil Iii
Professional Summary
William Joseph O'neil III, who also goes by William Joseph O'neil, William Joseph Oneil, is a registered financial advisor currently at SPC located in Allen Park, Michigan and SIGMA FINANCIAL CORPORATION located in Allen Park, Michigan. William is registered as an IAR (Investment Advisor Representative) and RR (Registered Representative) and started their career in finance in 2017. William has worked at 4 firms and has passed the Series 66, Series 63, Series 7TO, SIE and...
At a Glance
Fiduciary Standard
Fee Structure
Account Minimum
Active Clients
Fiduciary Standard
Fee Structure
Account Minimum
Active Clients
Other Aliases
William Joseph O'neil, William Joseph Oneil
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Videos & Posts
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Contact Information
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Disclosures on record.
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Years of Experience
9 years in the financial services industry
Current & Past Employments
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Current Firm
PARKLAND SECURITIES, LLC | SPC | SIGMA PLANNING CORPORATION | SIGMA PLANNING CORP
Contact Information
Main Address
300 Parkland Plaza, Ann Arbor, MI 48103Phone Number
(734) 663-1611# of Employees
471SEC notice filing (53 States and Territories)
Registered to provide investment advisory services in 53 US states and territories.
Documents
Regulatory Assets Under Management
Total Number of Accounts
26,433AUM (Assets Under Management)
$6,102,465,817Similar Advisors
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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.
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Primary Firm SEC Registration
PARKLAND SECURITIES, LLC | SPC | SIGMA PLANNING CORPORATION | SIGMA PLANNING CORP
State Registrations and Notice Filings
(5/18/2026)
(10/22/2025)
(3/27/2023)
(6/22/2026)
(1/8/2024)
(1/3/2023)
(1/3/2023)
(2/10/2026)
(12/21/2023)
(1/29/2025)
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 6 — Investment Company Products/Variable Contracts Representative Examination
Passed Jun 2017About the Series 6 examSRO Registrations
SRO Registrations
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CRS (Client Relationship Summary) - RIA
Click below to view William Joseph O'neil III's CRS (Customer Relationship Summary).
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