Weekly round-up of the latest corporate announcements, including a recommended cash offer for KCOM Group plc by Humber Bidco Limited, a secondary offer by Gresham House Energy Storage Fund plc, a transfer from the Main Market to AIM by the Alumasc Group plc, a related party transaction under the AIM rules by Taptica International limited, a return of value to shareholders by Stagecoach Group plc and 10 AGM notices.