Jeff along with several colleagues in the firm, founded Jackson Square Partners in May 2014. Serving as co-chair and co-chief investment officer of Jackson Square, he leads a team with a history of managing growth portfolios together that spans decades. Prior to founding Jackson Square, Jeff led the team, then called the Focus Growth Equity team, while at Delaware Investments from April 2005 to April 2014. Prior to Delaware Investments, he was a principal and executive vice president at Transamerica Investment Management. Jeff has been managing portfolios and separate accounts for more than 30 years. Before becoming a portfolio manager, he was a securities analyst and trader for Transamerica Investment Services, which he joined in 1980. Jeff received his bachelor’s degree in finance from California State University at Fullerton and is a CFA charterholder. Outside of work, he is passionate about golf, reading, and higher education philanthropy.