Allen & Overy has boosted its London financial services regulatory practice with a hire from Cleary Gottlieb Steen & Hamilton’s base in the city.

The Magic Circle outfit has hired counsel Knox McIlwain from the U.S. firm, reuniting him with former Cleary partner Bob Penn who rejoined A&O last year. The duo worked closely together while at Cleary, according to a press statement by A&O.