George E. Stephenson

George E. Stephenson, Vice Chairman

Mr. Stephenson has over 30 years of experience at Merrill Lynch in Institutional Sales. His title at Merrill Lynch was Managing Director. Prior to Merrill Lynch, Mr. Stephenson served in various positions at White, Weld & Co. Incorporated and G.H. Walker, Laird Incorporated. Mr. Stephenson has a B.A. degree from Colgate University and an M.B.A. from New York University Graduate School of Business Administration.  |  office 212.509.9500 |  cell 908.256.5139

Samantha J. Dubin

Samantha J. Dubin, Managing Director

Samantha J. Dubin joined Griffin Securities in 2012, as a Managing Director. Ms. Dubin has over 20 years of Financial Services experience. Samantha has served the country's most esteemed mutual fund and hedge fund portfolio managers with research coverage and idea generation, offering her experience and expertise in numerous sectors of the market. She was a Managing Director at Auriga USA and a Senior Vice President at Capstone Investments and Wedbush Morgan Securities. Ms. Dubin was also a Managing Director at Fulcrum Global Partners, where she was instrumental in expanding research coverage from start-up to acquisition. Prior to that, Samantha's tenure at JPMorgan included roles within both JPMorgan Securities and JPMorgan Private Bank, as a Vice President. Her many years of service have given Samantha a vast working knowledge of Institutional Equity Research Sales, Executive Financial Services, Wealth Management, Investment Banking, Asset Management, Asset Allocation, Initial Public Offering and Private Placement. Ms. Dubin managed portfolios for corporate executives and private clients at Hambrecht & Quist, LLC and Gruntal and Company. Samantha began her career at Lehman Brothers, in 1993. Ms. Dubin holds Series 7, Series 63 and Series 65 licenses and a B.A. from Boston University.  |  direct 646.350.4169 |  cell 310.773.1266

Donna Izzo

Donna Izzo, Director of Trading

Donna Izzo has been on Wall Street for over 30 years. She began her career working at Merrill Lynch Asset Management while attending Pace University, where she studied Economics and Finance. She spent nearly 20 years on the buy side working for such firms as Century Capital Associates, Martin B Perlman Associates, Zweig Dimenna Associates, and Spear Leeds Kellogg. After working on the buy side, Donna began a career on the floor of the New York Stock Exchange that included an NYSE seat with Mogavero Lee & Co. Inc., where she worked for six years. She worked with Doreen Mogavero and Jennifer Lee at a women-owned brokerage firm helping to develop a successful direct access business. Her floor trading career spanned 14 years in total. Her profession skills include trading of Equities, Options, and Derivative Programs.  |  direct 646.442.1443 |  cell 347.444.5860

Warren P. Meyers

Warren P. Meyers, Senior Sales Trader

Warren P. Meyers has over 30 years of Wall Street experience to his position of Senior Sales Trader at Griffin. Prior to joining Griffin in 2015, for most of his career Warren was a floor broker at the New York Stock Exchange in various positions. He started as a wire clerk for N.B. Camerman on the American Stock Exchange, moving to the NYSE where he was a wire clerk for H.J. Meyers & Co., a floor broker for Atalanta Sosnoff Management Corp., a floor broker and partner at Walter J. Dowd, Inc., and a Managing Director at Illustro Trading, LLC. During his career at the NYSE, Warren handled the trading for many of the largest sell-side firms on The Street. In addition to his trading duties, Warren was also in charge of on-floor compliance at his last three positions. He also has been a representative for the NYSE through many media outlets and has been quoted in many publications including Traders Monthly, The New York Times, and The Wall Street Journal. He is currently a contributor for CNBC and has appeared many times on various segments of CNBC broadcasts including Squawk on the Street, the Lunch Time Report, The Final Hour Wrap Up, and The Larry Kudlow show. Warren graduated from Deerfield Academy and received a B.S. in Business Administration from Pepperdine University.  |  direct 646.442.4255 |  cell 917.825.3617

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