LONDON (Dow Jones)--JPMorgan Mid Cap Investment Trust PLC (JMF.LN) said Friday it purchased into treasury 20,000 ordinary shares at 382.40 pence per share. -Shares closed Friday at 384.0 pence. -By Iain Packham, Dow Jones Newswires; 44-20-7842-9269; [email protected] (END) Dow Jones Newswires June 18, 2010 12:14 ET (16:14 GMT)