** Shares of Altair Minerals ALR.AX rise 60% to A$0.004, posting their biggest intraday percentage gain since May 15, 2024
** Stock hits its highest level since Dec. 13, 2024
** Copper explorer says it will buy the high-grade Venatica copper project in Peru
** About 13.7 mln shares change hands, vs the 30-day average of around 2.2 mln
** Stock up 60% this year, including day's move
(Reporting by Aaditya Govind Rao in Bengaluru)
((Aaditya.govindrao@thomsonreuters.com;))