RUBICON TECHNOLOGY INC

CUSIP: 78112T107 Class: COM

Employees Retirement System of Texas's Holding History (CIK: 0001398739)

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

Q4 2015
Shares 157,100 Value ($000) $179 Avg Close — Range —
Q3 2015
Shares 157,100 Value ($000) $162 Avg Close — Range —
Q2 2015
Shares 157,100 Value ($000) $382 Avg Close — Range —
Q1 2015
Shares 239,000 Value ($000) $942 Avg Close — Range —
Q4 2014
Shares 239,000 Value ($000) $1,092 Avg Close — Range —
Q3 2014
Shares 129,000 Value ($000) $548 Avg Close — Range —
Q2 2014
Shares 129,000 Value ($000) $1,129 Avg Close — Range —
Q2 2013
Shares 125,000 Value ($000) $1,001 Avg Close — Range —