STOLEN; Cannondale CAAD12

Hi,
Sadly some **** made off with my bike from outside my front door (in a communal hallway serving 4 flats). Bike details:
Red Cannondale CAAD12, size 60cm with Ultegra Di2, Mavic wheels, Fizik saddle, speedplay pedals.
Preston Park area of Brighton, theft took place around 19:15 on the 19th July.
Any info would be gratefully received, reward offered.