Joined Ardsley Partners in 2002 and currently serves as the Renewable Energy Strategy Portfolio Manager. He began at Ardsley as an analyst covering the Alternative Energy, Industrial, and Metals & Mining sectors. Prior to joining Ardsley, Spencer was a Director at CIBC Oppenheimer & Co., working as an equity position trader focused on the utility sector. Spencer was head of CIBC World Market’s trading desk in London in 2001. Prior to working as a position tra... (login for more professional bio)