** Shares of Mach7 Technologies M7T.AX rise 10.3% to A$0.375
** The medical imaging systems provider announces an on-market share buy-back programme with a maximum value of up to A$5 mln ($3.12 mln)
** The 12-month-long programme set to start on March 3
** About 850,934 shares change hands, 2.1 times the 30-day average of 413,681
** Including session's moves, stock has lost 6.3% so far this month
($1 = 1.6028 Australian dollars)
(Reporting by Manasi Dasa Sundeep in Bengaluru)
((Manasi.DasaSundeep@thomsonreuters.com;))