National Holdings Corporation announced the expansion of its Capital Markets team in Boston: Mark Berube has joined as Senior Vice President, Institutional Equity Sales and Durkin has also joined as Senior Vice President, Institutional Equity Sales. Together, Mr. Berube and Mr. Durkin will be integral to National’s continued expansion of its capital markets business and geographic presence. Mark Berube joins National Securities after serving as a Vice President at Drexel Hamilton, where he worked with Thomas Durkin to establish the company’s Boston regional trading desk. Before this, Mr. Berube was a Managing Director at GL Capital Partners, where he managed sales and business development for the emerging asset manager. Prior to joining National, Thomas Durkin was a Vice President at Drexel Hamilton, where he worked with Mark Berube to open the Boston regional trading desk for the company. Mr. Durkin also held a Director position at Avondale Partners. Prior to this, Mr. Durkin spent 10 years at Wedbush/Pacgrow Life Sciences, where he recruited and opened the firm’s first regional equity trading desk in Boston.