Siebert AdvisorNXT, LLC.

Gustav Langford is a financial advisor with Siebert AdvisorNXT, LLC, holding a Series 63 designation and bringing 28 years of industry experience. He previously worked at Muriel Siebert & Co., Inc. and Stockcross Financial Services, Inc. Langford is also a volunteer with the Elkins Park Firehouse. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities with investment supervisory services and managed programs. The firm uses a web-based AdvisorNXT platform combined with access to third-party and independent managers, employing Modern Portfolio Theory and various strategies within a wrap-fee structure.

Michael Vanni is an investment advisor with Siebert AdvisorNXT, LLC, holding Series 63, 65, and 66 credentials and bringing 31 years of industry experience. His career includes roles at Muriel Siebert & Co. LLC, Stockcross Financial Services, Inc., and Select Advisory Services, LLC. He divides his time between Siebert AdvisorNXT and Muriel Siebert & Co., both under the Siebert Financial Corporation umbrella. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities through investment supervisory services and managed programs. The firm utilizes a web-based platform incorporating Modern Portfolio Theory and risk-tolerance assessments to construct and manage ETF/ETN portfolios, offering both discretionary and non-discretionary solutions with access to third-party and independent managers.

Marvin Rivas is a financial advisor with Siebert AdvisorNXT, LLC. He holds a Series 66 designation and has five years of industry experience. His prior work includes roles at Equitable Advisors, XPO Logistics, New Jersey Institute of Technology, CVS Pharmacy, and Elizabeth High School. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities by providing investment supervisory services and managed programs through a web-based platform. The firm employs Modern Portfolio Theory with ETF/ETN allocations, offers access to third-party and independent managers, and combines automated portfolio management with negotiated wrap-fee structures.

Zachary Banks is a Series 66-licensed financial advisor with three years of industry experience, currently affiliated with Siebert AdvisorNXT, LLC. His prior roles include positions at Muriel Siebert & Co., LLC, LPL Financial, and Rollstone Bank and Trust. He is a dual employee of Siebert AdvisorNXT and Muriel Siebert & Co., LLC, both under the Siebert Financial Corporation umbrella. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities, offering investment supervisory services and managed programs through a web-based platform. The firm employs Modern Portfolio Theory and risk-tolerance assessments to create and rebalance ETF/ETN-based portfolios, combining automated management with access to third-party and sub-advisory solutions.

James Latimer Jr. is a financial advisor at Siebert AdvisorNXT, LLC, holding Series 63 and Series 65 licenses with 29 years of industry experience. His prior work includes roles at Stockcross Financial Services, Inc. and Tradestar Investments, Inc., and he has been affiliated with Fiserv Investor Services, Inc. for over two decades. Latimer splits his time evenly between Siebert AdvisorNXT and Muriel Siebert & Co., LLC, both under the Siebert Financial Corporation. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities through investment supervisory services and managed programs. The firm utilizes a web-based platform and third-party managers to offer ETF/ETN-based allocations, fundamental and technical strategies, and sub-advised solutions, operating primarily within a wrap-fee structure.

Jacqueline Yapp is a CFP® professional with 13 years of experience in financial advising. She is currently with Siebert AdvisorNXT, LLC. and previously worked at WealthSource Partners, LLC and Avant Garde Advisors LLC. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities by providing investment supervisory services and managed programs through a web-based platform and access to third-party and independent managers. The firm applies Modern Portfolio Theory with risk-tolerance assessments to create ETF/ETN-based portfolios and offers both discretionary and non-discretionary management options.

Lucky Radley is a Series 66-licensed financial advisor at Siebert AdvisorNXT, LLC with nine years of industry experience. He has worked at Muriel Siebert & Co., Inc. since 2018 and spent one year with StockCross Financial Services prior to that. Radley is a dual employee of Muriel Siebert & Co., Inc. and Siebert AdvisorNXT, LLC, both under the Siebert Financial Corporation. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities with investment supervisory services and managed programs. The firm uses a web-based platform that applies Modern Portfolio Theory and risk-tolerance questionnaires to build ETF/ETN-based portfolios, and it offers both discretionary and non-discretionary management options.

Colette Erasmus is a financial advisor with Siebert AdvisorNXT, LLC, holding Series 63 and Series 65 licenses and 13 years of industry experience. She has worked at Muriel Siebert & Co., LLC since 2018 and previously spent eight years at Stockcross Financial Services. Erasmus splits her time between Siebert AdvisorNXT and Muriel Siebert & Co., both under the Siebert Financial Corporation umbrella. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities through investment supervisory services and various managed programs. The firm utilizes a web-based platform incorporating Modern Portfolio Theory with ETF/ETN allocations, offering both discretionary and non-discretionary portfolio management alongside access to third-party and independent sub-advisers.

Rodney Carrasquillo is a financial advisor with Siebert AdvisorNXT, LLC, holding Series 63 and Series 65 licenses and 26 years of industry experience. He previously worked at Stockcross Financial Services for eight years before joining Muriel Siebert & Co. in 2020. He works full time split between Muriel Siebert & Co. and Siebert AdvisorNXT as an Investment Advisor Representative. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities with investment supervisory services and managed programs. The firm utilizes a web-based platform combining Modern Portfolio Theory, third-party managers, and fundamental and technical strategies within a wrap-fee structure.

Angelo Guerriero is a financial advisor at Siebert AdvisorNXT, LLC with 43 years of industry experience. He holds Series 63 and Series 65 credentials and has been with Muriel Siebert & Co., Inc. since 1999. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities through investment supervisory services and managed programs. The firm combines a web-based portfolio management platform with access to third-party and independent managers, using a mix of Modern Portfolio Theory, fundamental and technical strategies, and sub-advised solutions.

Peter Sosnowski is an investment advisor with Siebert AdvisorNXT, LLC, holding Series 63 and Series 65 licenses and bringing 40 years of industry experience. He has worked extensively with Muriel Siebert & Co., Inc. and its affiliates since 1999. Sosnowski divides his time equally between Siebert AdvisorNXT and Muriel Siebert & Co., LLC, both under the Siebert Financial Corporation umbrella. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities through investment supervisory services and managed programs. The firm employs a Modern Portfolio Theory–based platform combined with access to third-party and independent managers, offering both discretionary and non-discretionary portfolio management within a wrap-fee structure.

Antonio Speciale is a financial advisor with Siebert AdvisorNXT, LLC. He holds Series 63 and Series 66 licenses and has 12 years of industry experience. Prior to joining Siebert AdvisorNXT, he worked at Stockcross Financial Services Inc. for 13 years. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities through investment supervisory services and managed programs. The firm combines a web-based AdvisorNXT platform using Modern Portfolio Theory with access to third-party and independent managers, offering both discretionary and non-discretionary portfolio management within a wrap-fee structure.

Mark Malek is an investment advisor representative with Siebert AdvisorNXT, LLC and Muriel Siebert & Co., Inc., holding Series 63 and Series 65 registrations. He has 16 years of industry experience, including roles at Muriel Siebert & Co., Siebert Investment Advisors, WealthSource Partners, Vellum Financial, Quantitative Insight Partners, and Praxis Insight Advisors. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities through investment supervisory services and managed programs, utilizing a web-based platform and third-party managers. The firm combines Modern Portfolio Theory‑based ETF/ETN allocations with fundamental and technical strategies, offering both discretionary and non-discretionary portfolio management.

Kyle Gonzalez is a financial advisor with Siebert AdvisorNXT, LLC. He holds the Series 66 designation and has three years of industry experience, all with Muriel Siebert & Co. and Siebert AdvisorNXT. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities through investment supervisory services and managed programs. The firm combines a web-based AdvisorNXT platform using Modern Portfolio Theory with access to third-party and independent managers, offering both discretionary and non-discretionary portfolio management within a wrap-fee structure.

Sarah Braddock is an investment advisor with Siebert AdvisorNXT, LLC and holds Series 63 and Series 65 licenses. She has nine years of industry experience, including roles at Searchlight Investments, LLC and Searchlight Financial Advisors. She divides her time between Siebert AdvisorNXT and Muriel Siebert & Co., LLC, both under the same parent company. Siebert AdvisorNXT serves individuals, high-net-worth clients, families, trusts, and business entities through investment supervisory services and managed programs. The firm uses a web-based platform incorporating Modern Portfolio Theory, ETF/ETN allocations, and access to third-party managers, offering discretionary and non-discretionary portfolio management within a wrap-fee structure.