GLUCK V ENDZWEIG

[2026] EWCA Civ 145, Court of Appeal, Lord Justice Dingemans, Lord Justice Phillips and Lord Justice Lewis, 20 February 2026

Arbitration – Agreement that award could be amended at any time – Whether there was a valid arbitration agreement – Whether unlimited amendment was repugnant to the arbitration agreement – Arbitration Act 1996, sections 57, 58 and 66

The arbitration clause in a Share Purchase Agreement provided that disputes would be resolved by arbitration but that the tribunal had authority "to amend and add to and change the judgement they have given, at any time …".