LONDON (Dow Jones)--Martin Currie Portfolio Investment Trust PLC (MNP.LN) said Tuesday it bought back 5,000 ordinary shares at a price of 111.75 pence per share for immediate cancellation on June 28. -Shares at 0828 GMT down 2.75 pence or 2.46%, at 109 pence, valuing the company at GBP122.9 million. -By Tapan Panchal, Dow Jones Newswires. Tel +44(0)207-842 9448, [email protected] (END) Dow Jones Newswires June 29, 2010 04:30 ET (08:30 GMT)