UBS’s co-head of US m&a resigns

UBS’s co-head of US mergers and acquisitions, Ehren Stenzler, resigned from the Swiss bank yesterday, according to a source close to the matter. Stenzler’s move comes a day after the resignation of the bank’s head of Americas investment banking, Aryeh Bourkoff, to whom Stenzler reported. The two are likely to work together on future ventures, said the source. Last June, Stenzler, a 10-year UBS veteran, was promoted to joint deputy head.