ARK Invest founder and CEO Cathie Wood relinquished her role as portfolio manager at two of the investment management firm’s exchange-traded funds, according to a regulatory filing.

William Scherer, who has served as a trading manager at ARK since 2014, has been appointed to handle investments in place of Wood for the company’s two index funds, ARK 3D Printing ETF (PRNT) and ARK Israel Innovative Technology ETF (IZRL) beginning September.