** Drugmaker's shares AMPE.N tumble 38 pct to $0.38
** Company to sell 20 mln common shares with an accompanying
warrant at $0.40 a piece, a 34 pct discount to stock's last
close
** Offering represents 23 pct of AMPE outstanding shares or
a quarter of the free float
** Expects to raise gross proceeds of $8 mln from
offering urn:newsml:reuters.com:*:nPn43WkPya
** The 5-year warrants are exercisable at a price of
$0.40/shr, 6 months after issuance
** Ampio intends to use proceeds to fund preclinical
development or a clinical trial and as working capital
** Canaccord Genuity is acting as sole book-runner
** Stock down 90 pct this year
(Reporting by Medha Singh in Bengaluru)
((medha.singh@thomsonreuters.com))