Mar 18, 2022 Matt Brusch, COO of world’s largest IR association, to step in as interim president and chief executive Gary LaBranche is leaving NIRI after five years to take up a CEO position at an association elsewhere, IR Magazine can reveal. Matt Brusch, currently chief operating officer (COO), will step in as interim president and CEO of NIRI from April 1, when LaBranche will assume the title of ‘special adviser to the interim CEO’, staying on until May 31 to assist in the transition.