** Drug developer's shares RUBY.O down 5.92% at $30.11
premarket
** Co's offering of about 6.9 mln shares of its common stock
priced at $29.00 per share, representing a 9.3% discount to
stock's last close urn:newsml:reuters.com:*:nGNX3BhpsJ
** Expects to raise about $200 million in gross proceeds
from the offering
** Also has granted the underwriters a 30-day option to
purchase up to an additional 1,034,482 shares of its common
stock
** The offering is expected to close around March 19
** J.P. Morgan, Jefferies and Guggenheim Securities are
acting as joint bookrunning managers for the offering
** Up to last close, stock nearly tripled YTD
(Reporting by Rithika Krishna in Bengaluru)
((Rithika.Krishna@thomsonreuters.com;))