The head of chambers at 3 Stone Buildings has left to join another set, amid speculation that the commercial outfit could merge with another chambers.

The leading chancery and commercial chambers has recently lost several barristers, including Richard Wilson QC and Constance McDonnell, who will both be joining Serle Court on 29 February. This week head of chambers Andrew Twigger QC was hired by Maitland Chambers. A spokesperson at Maitland confirmed the switch. 

It is understood from sources close to the situation that 3 Stone Buildings is now in merger talks with another commercial set. 3 Stone Buildings declined to comment.

Following Twigger’s exit, 3 Stone, which has offices in both London and New York, has 28 members, including three silks.

The departures at 3 Stone come just a few months after barristers at commercial set 11 Stone Buildings voted to close, saying members’ ‘differing practice interests will be better served in other chambers’.