New York--PricewaterhouseCoopers Securities L.L.C. has named Michael Hammond president and CEO. Mr. Hammond was a founding partner of Shattuck Hammond Partners, a New York-based investment banking firm. ``My first goal is to get the organization a presence in the middle market,'' Mr. Hammond said, adding that the 7,000-employee unit will concentrate in part on health care companies. Mr. Hammond replaces Lior Samuelson, who left PricewaterhouseCoopers Securities last month. PricewaterhouseCoopers Securities L.L.C. is the investment banking unit of PricwaterhouseCoopers L.L.P., New York.