Aug 7 (Reuters) - Transurban Group TCL.AX :
* ANNOUNCES ACQUISITION OF REMAINING MINORITY INTERESTS IN M5 WEST
* TO RAISE $500 MILLION VIA A FULLY UNDERWRITTEN 'PRO- RATA' INSTITUTIONAL PLACEMENT AT AN OFFER PRICE OF $14.70
* ANNOUNCES SECURITY PURCHASE PLAN TO RAISE UP TO $200 MILLION
* PROCEEDS FROM PLACEMENT AND SPP WILL BE USED TO FUND ACQUISITION OF REMAINING INTERESTS IN M5 WEST