Sujal Kapadia, head of U.S. corporate interest-rate derivatives marketing at Lehman Brothers in New York, has left the firm. It could not be determined whether Kapadia is heading to a competitor. Kapadia, who could not be reached, joined Lehman from JPMorgan in 2001 (DW, 2/19/2001). Kaushik Amin, co-head of global interest rate products at Lehman in New York, was out of the office and could not be reached for comment. Kerrie Cohen, spokeswoman in New York, did not return calls.