NORTHGATE MINERALS CORP

CUSIP: 666416AB8 Class: CNV

Wellesley Asset Management's Holding History (CIK: 0001533551)

Note: Option positions (PUT/CALL) are excluded.

Q1 2014
Shares 21,266 Value ($000) $22,338 Avg Close — Range —
Q4 2013
Shares 19,444 Value ($000) $18,824 Avg Close — Range —
Q3 2013
Shares 15,626 Value ($000) $14,972 Avg Close — Range —
Q2 2013
Shares 7,127 Value ($000) $6,753 Avg Close — Range —
Q1 2013
Shares 7,975 Value ($000) $8,249 Avg Close — Range —