Senior partners from O’Melveny & Myers were in London last week to meet with management at Allen & Overy as the pair’s trans-Atlantic merger discussions gather pace.

Several members of the U.S. firm’s management, including O’Melveny chairman Bradley Butwin, met with Allen & Overy’s management team last week at the Magic Circle firm’s Spitalfields headquarters, according to multiple partners. They met with Allen & Overy senior partner Wim Dejonghe and managing partner Andrew Ballheimer.