RUBICON TECHNOLOGY INC

CUSIP: 78112T107 Class: COM

Invesco Ltd.'s Holding History (CIK: 0000914208)

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

Q4 2015
Shares 54,647 Value ($000) $62 Avg Close — Range —
Q3 2015
Shares 52,863 Value ($000) $54 Avg Close — Range —
Q2 2015
Shares 309,019 Value ($000) $751 Avg Close — Range —
Q1 2015
Shares 219,423 Value ($000) $865 Avg Close — Range —
Q4 2014
Shares 199,302 Value ($000) $911 Avg Close — Range —
Q3 2014
Shares 352,078 Value ($000) $1,497 Avg Close — Range —
Q2 2014
Shares 595,663 Value ($000) $5,212 Avg Close — Range —
Q1 2014
Shares 514,906 Value ($000) $5,813 Avg Close — Range —
Q4 2013
Shares 587,047 Value ($000) $5,841 Avg Close — Range —
Q3 2013
Shares 447,496 Value ($000) $5,419 Avg Close — Range —
Q2 2013
Shares 213,685 Value ($000) $1,703 Avg Close — Range —