*The Nasdaq Stock Market named David P. Warren chief financial officer. He was previously acting chief financial officer since July and was formerly chief financial officer at the Long Island Power Authority.
*William Johnston (inset), president and chief operating officer of the New York Stock Exchange, is stepping down in January. He will be succeeded by Catherine Kinney (inset), and Robert Britz, who are both NYSE executive vice presidents. They will share the titles of president, chief operating officer and executive vice chairman.
*Sandler O'Neil & Partners in New York named Jimmy Dunne (inset), senior managing partner. He was previously a managing partner at the firm. Jon Doyle was named managing principal and Fred Price was named chief operating officer. Doyle will continue to head the firm's fixed income sales and trading operation. Price was previously co-director of equity research at Sandler. The firm formed a new advisory board, comprising Andy Armstrong, Spire Capital; Stan Druckenmiller, Duquesne Capital Management; and Ken Langone, Invemed Associates LLC.
*Robert Gasser joined NYFIX Millennium in Stamford, Conn., as chief executive officer. He was previously head of U.S. equity trading at J.P. Morgan.
*SS&C Technologies in Windsor, Conn., promoted Normand A. Boulanger to executive vice president and chief operating officer. He was previously senior vice president, institutional sales. Gregory F. Reid was named senior vice president, services and Britain T. Price was promoted to senior vice president, sales in North America. Reid was previously a national consulting partner at KPMG Peat Marwick and Price was formerly vice president, institutional sales at SS&C.
*John Seeberg joined Greenwich, Conn.-based Interactive Brokers' institutional sales team. He was previously with Bear Stearns.
*Keefe, Bruyette & Woods in New York named the firm's chief executive, John Duffy (inset), to the additional post of chairman, a post that was formerly held by the late Joseph Berry. Andrew Senchak, previously vice-chairman and director of corporate finance, was promoted to president. Thomas Michaud, previously executive vice president and director of equity sales, was promoted to vice-chairman and chief operating officer. Duffy, Senchak, and Michaud will comprise the firm's newly created office of the chairman.
*Tamesis, a London-based supplier of real-time risk management and trading solutions to investment banks, appointed Leonie Alsop head of global marketing. She was previously director of group marketing at Financial Objects.
*HSBC Holdings Plc in London named Penny Haddon as a director in the firm's equity syndication team. She was previously an executive director at Goldman Sachs on its equity syndication desk.
*Ken Wortz joined Syntegra, the New York-based trading system provider, as vice president, operations. Wortz, who is based in the firm's Long Island customer service center, was previously with Metro Media Fiber Network.
*Gregor Bailor joined Capital One Financial Corp. in Falls Church, Va., as chief information officer. He was previously chief information officer at the Nasdaq Stock Market.
*Daniel Marciano joined Gerard Klauer Mattison in New York as director of institutional trading. He was previously with First Albany. Dawn Boyle, also from First Albany, joined as a senior vice president and position trader. The firm's institutional equity sales team added Holly Hansen as a senior vice president. Hansen, who is based in the firm's San Francisco office, was previously with Alex. Brown. Sanderson (Andy) Read, from McDonald Investments, joined GKM's Chicago office and James Van Tassel, formerly with Morgan Stanley, joined the firm's headquarters in New York. Both Read and Tassel are with the firm's institutional equity sales group.
*Financial Technologies in New York named James Dooley president and chief operating officer. He was previously with Merrill Lynch.
*The Nasdaq Stock Market named Michael Sanderson chief executive of Nasdaq Europe. Sanderson, is based in Nasdaq's London office.
