The well-respected head of marketing and sales for the Americas at Capula, a $10 billion European hedge fund, is leaving the firm after five years, Financial News has learned.

Ed O'Reilly, a New York-based partner who joined Capula in 2008, is leaving the firm, a spokesman for Capula confirmed. The spokesman said in a statement: "We thank Ed for his significant contributions over the past five years and wish him well in his future endeavors."