** Shares of Memphasys MEM.AX rise as much as 33.3% to A$0.008 in early trade, hitting their highest since February 3
** Stock logs largest intraday pct gain since February 2
** Assisted reproductive tech firm secures regulatory approval from Australia's Therapeutic Goods Association for its Felix tech system
** Felix is a bioseparation system that isolates the most viable sperm cells for human-assisted reproduction
** More than 16 million shares change hands, 2 times the 30-day average volume
** Stock flat YTD, including the day's moves
(Reporting by Nikita Maria Jino in Bengaluru)
((Nikita.Jino@thomsonreuters.com;))