Monday 8 May Interim: Numis Trading statements: Centrica, Liberty Global AGMs: Centrica, Costain, Global Graphics, Manchester United, PPHE Hotel, Puretech Health Tuesday 9 May Interims: Cambria Automobiles, Treatt Finals: Gear4Music, Steris Trading statements: Aon, Belmond, Dialog Semiconductor, Spirax-Sarco Engineering, Travelport Worldwide, William Hill AGMs: 4imprint, Amerisur Resources, Capital & Regional, Cello, Centaur Media, Frontier...