RUBICON TECHNOLOGY INC

CUSIP: 78112T107 Class: COM

FIRST TRUST ADVISORS LP's Holding History (CIK: 0001125816)

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

Q4 2014
Shares 37,030 Value ($000) $169 Avg Close — Range —
Q3 2014
Shares 40,876 Value ($000) $174 Avg Close — Range —
Q2 2014
Shares 43,330 Value ($000) $379 Avg Close — Range —
Q1 2014
Shares 65,009 Value ($000) $734 Avg Close — Range —
Q4 2013
Shares 32,844 Value ($000) $327 Avg Close — Range —
Q3 2013
Shares 27,993 Value ($000) $339 Avg Close — Range —