LONDON (Dow Jones)--BAE Systems PLC (BA.LN) said Thursday it purchased 670,000 of its ordinary shares of 2.5 pence each via The Royal Bank of Scotland NV and intends to hold the purchased shares in treasury. MAIN FACTS: -Highest price paid per share: 321.3 pence -Lowest price paid per share: 317.7 pence -Shares closed Thursday at 320.5 pence. -By Iain Packham, Dow Jones Newswires; 44-20-7842-9269; [email protected] (END) Dow Jones Newswires July 08, 2010 12:42 ET (16:42 GMT)