Top 20

      AS AT 28 FEBRUARY 2011
    HOLDER NAME
UNITS % OF ISSUED
1   BIOTECH CAPITAL LTD
8,823,530
9.10%
2   CELAC PL
3,750,000
3.87%
3   LIVINGSTON MARGARET
3,490,750
3.60%
4   GALLIN NICOLE JOAN
3,225,671
3.36%
5   GEMELLI NOM PL
3,185,000
3.28%
6   SCINTILLA STRATEGIC INV L
3,000,000
3.09%
7   CELUS PL
3,000,000
3.09%
8   TREHERNE JONATHAN MARK
2,808,457
2.90%
9   STRONSAY PL
2,500,000
2.58%
10   HONDRIS JUSTIN
2,215,032
2.28%
11   SLADE TECHNOLOGIES PL
2,000,000
2.06%
12   LEE KEVIN
1,899,995
1.96%
13   GEMELLI NOM PL
1,815,000
1.87%
14   SILVER KNIGHT HLDGS PL
1,500,000
1.55%
15   BIGGINS CHRISTOPHER L
1,035,839
1.07%
16   MASEN PROPS PL
1,029,411
1.06%
17   HAYNES KYLE BRADLEY
1,000,000
1.03%
18   SOCIAL INV PL
1,000,000
1.03%
19   HAMPSON MURRAY WILLIAM
1,000,000
1.03%
20   BAILEY TERRY + DEANNE
1,000,000
1.03%