RUBICON TECHNOLOGY INC

CUSIP: 78112T107 Class: COM

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

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

Q1 2014
Shares 11,000 Value ($000) $124 Avg Close — Range —
Q4 2013
Shares 11,000 Value ($000) $109 Avg Close — Range —
Q3 2013
Shares 11,000 Value ($000) $133 Avg Close — Range —
Q2 2013
Shares 24,000 Value ($000) $192 Avg Close — Range —
Q4 2012
Shares 4,000 Value ($000) $24 Avg Close — Range —
Q3 2012
Shares 15,746 Value ($000) $151 Avg Close — Range —
Q2 2012
Shares 7,869 Value ($000) $80 Avg Close — Range —
Q1 2012
Shares 7,869 Value ($000) $82 Avg Close — Range —
Q4 2011
Shares 15,369 Value ($000) $144 Avg Close — Range —