LONDON (Dow Jones)--International Biotechnology Trust Plc (IBT.LN), announced Thursday it purchased 200,000 of its own ordinary shares of 25 pence each at 142.00 pence per share and the company intends to hold these shares in treasury. MAIN FACTS: -Shares at 1502 GMT stood at 143 pence. -By Zechariah Hemans, Dow Jones Newswires; 44-20-7842-9411; [email protected] (END) Dow Jones Newswires June 24, 2010 11:03 ET (15:03 GMT)