GREAT BASIN GOLD LTD

CUSIP: 390124105 Class: Equities

Zurcher Kantonalbank (Zurich Cantonalbank)'s Holding History (CIK: 0001368163)

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

Q4 2012
Shares 1,017,100 Value ($000) $10 Avg Close — Range —
Q3 2012
Shares 1,017,100 Value ($000) $83 Avg Close — Range —
Q2 2012
Shares 1,124,707 Value ($000) $761 Avg Close — Range —
Q1 2012
Shares 904,707 Value ($000) $634 Avg Close — Range —
Q4 2011
Shares 830,000 Value ($000) $774 Avg Close — Range —