AIM-listed asset manager Impax said that inflows to third-party listed equity funds and accounts helped drive growth in assets under management (AuM) in the second quarter.The company, which is focused on environment markets and related resource efficiency sectors, reported AuM of £2.55bn by the end of March, up 6.1% from £2.40bn at the end of the first quarter (December 31st).AuM from Impax label listed equity funds and private equity funds were relatively stable at £539m and £376m by the end of the quarter, respectively. However, third-party AuM jumped by £140m to £1.63bn, helped by £112m of net inflows and £28m of positive market movement and performance.BC