In the latest of a string of high-level departures to hit the Swiss banking giant UBS AG, its head of global mergers and acquisitions has defected to become a partner at Moelis & Co.

Liam Beere, a 19-year veteran at UBS, will join Moelis in September, according to the New York boutique investment bank.

Beere, formerly the head of European M&A at UBS, was promoted to the global job only in March.

At Moelis, he will be based in London and advise clients around the world.

Moelis was founded by Ken Moelis, who quit UBS in 2007 to set up his own company. Beere will become head of M&A there for Europe, the Middle East and Africa.

Beere's departure is the latest in a series of defections by UBS bankers in recent months, as the Swiss giant works to revamp an investment bank that was among the hardest hit during the financial crisis.

Bankers have been leaving UBS over pay. UBS declined to comment on Beere's move.

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