Prior to todays NR, 25 August 2009 (the latest published figures) there were 95 Million shares issued and outstanding.

From the NR:

The 16,100,000 Subscription Receipts issued on November 27, 2009 will be converted today as at 17:00 (Montreal Time) into a total of 16,100,000 units (each, a "Unit"). Each Unit consists of one Common Share in the share capital of Medicago and one half of one Common Share purchase Warrant. Each whole Warrant will be exercisable at a price of C$1.00 until 5:00 p.m. on November 26, 2010.