** Shares of Clinuvel Pharmaceuticals CUV.AX jump as much
as 8.6% to A$14.34, their biggest intra-day gain since Feb. 19
** Co initiates on-market share buy-back program for about
3% of CUV's outstanding share capital
** Says duration of the share buy-back will be 12 months on
receiving regulatory approvals
** Shares hit their highest level since March 5
** More than 133,170 shares change hands as compared with
the 30-day average volume of ~126,100 shares
** Stock down 17.5% this year as of last close, vs a 1.8%
increase in the benchmark S&P/ASX 200 index .AXJO
(Reporting by Roushni Nair in Bengaluru)
((Roushni.Nair@thomsonreuters.com;))