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Mr. Mostafa has served as X4’s Chief Financial Officer since September 2018. Prior to joining X4, Mr. Mostafa served as chief financial officer of Abpro Corporation, a biotechnology company focused on antibody therapeutics. Prior to that, Mr. Mostafa was a managing director in the healthcare investment banking group at Cantor Fitzgerald, and was a senior banker in the healthcare investment banking group at Needham & Company. Prior to that, Mr. Mostafa was a vice president in the investment banking group at CRT Capital Group, and was a portfolio management associate in the global stock selection group at AQR Capital. He began his career as an analyst in the healthcare investment banking group at Salomon Smith Barney. Mr. Mostafa earned an A.B. in Economics from Brown University.