Proskauer Rose and SJ Berwin said Friday they had decided against merging, putting to an end months of speculation about a possible trans-Atlantic tie-up between the two law firms.

The firms in a joint statement said they decided to end merger talks, which had become public in May. New York-based Proskauer and London-based SJ Berwin said “we recognized that the timetable necessary to reach the agreements that would ensure the successful integration of our firms is not workable at this time.”