Michael Vanni
Investment Adviser Representative at Siebert Advisornxt, LLC.
Professional summary
Compiled by AdvisorFinder from public regulatory records. This advisor has not provided a personal biography.
Michael Vanni is an investment adviser representative with Siebert Advisornxt, LLC. in Horsham, PA, where they have been registered since 2017. They have worked in the securities industry since 1995 and have been registered with 3 firms, including Stockcross Financial Services and Select Advisory Services, LLC. They have passed 9 industry qualification exams, including the Series 65 (investment adviser), Series 66 (combined investment adviser and state securities agent), and Series 7 (general securities representative). They are registered to provide investment advice in Alabama, Florida, Louisiana, Maryland, and Pennsylvania.
Office
Advisors at this office: 2
Branch office as filed with FINRA, counting current advisors in the directory who work there.
Registrations & licenses
- Investment adviser:
- Alabama, Florida, Louisiana, Maryland, Pennsylvania
- Broker:
36 states and territories
Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Illinois, Indiana, Iowa, Kansas, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, Montana, Nebraska, New Hampshire, New Jersey, New York, North Carolina, Ohio, Oregon, Pennsylvania, South Carolina, Tennessee, Texas, Vermont, Virginia, Washington, Wisconsin
Registration requirements vary by state and service. Contact the advisor's firm to confirm whether they can serve you.
Financial-firm registration history
Registration history as reported to FINRA, most recent first.
Reported employment history
Employment the advisor reported on their SEC/FINRA filings, as of October 8, 2026. It may not be a complete history.
- Stockcross Financial Services, Inc.Jan 2007 – Jan 2020Horsham, PA
- Muriel Siebert & Co.Jan 2020 – Jun 2025Horsham, PA
- Muriel Siebert & Co., LLCJun 2025 – no end date reportedTrevose, PA
Official records & sources
Data as of August 10, 2026 · Source: SEC IAPD & FINRA BrokerCheck
About Siebert Advisornxt, LLC.
These details describe the firm overall. Individual advisors' services, clients, and fees may differ.
Fee arrangements the firm reports
- Percentage of assets under management
Arrangements the firm reports on its Form ADV; this advisor may not charge every fee listed. Estimated from the firm's Form ADV — individual terms may differ. Not a quote.
Services the firm offers
Tailored investment portfolios (conservative to aggressive), dedicated wealth management, personalized financial planning, portfolio recommendations, and automatic rebalancing.
Client types the firm serves
Firm assets under management
$100M–$500M
- Firm disclosures (Form ADV)
- No disciplinary history reportedVerify on SEC IAPD
- Advisors listed on AdvisorFinder:
- 42
- Offices listed on AdvisorFinder:
- 9
- Main office:
- New York, NY
- SEC file number:
- 801-110718
Counts reflect AdvisorFinder directory coverage, not necessarily the firm's complete network.
Form ADV data as of September 23, 2026
View full firm profileOther advisors at Siebert Advisornxt, LLC.
Showing 12 of 42 in the directory
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This profile was compiled and published by AdvisorFinder as editorial content using publicly available information from the SEC's IAPD database and FINRA BrokerCheck. Michael Vanni has not reviewed, approved, or endorsed this profile and is not responsible for its accuracy. Regulatory records change over time — always verify the current record directly on BrokerCheck or SEC.gov before making any decision. AdvisorFinder may be compensated for referrals generated through this page.
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