RUBICON TECHNOLOGY INC

CUSIP: 78112T107 Class: COM

FMR LLC's Holding History (CIK: 0000315066)

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

Q1 2017
Shares 2,763,209 Value ($000) $2,302 Avg Close — Range —
Q4 2016
Shares 2,763,209 Value ($000) $1,710 Avg Close — Range —
Q3 2016
Shares 2,738,874 Value ($000) $1,725 Avg Close — Range —
Q2 2016
Shares 2,725,406 Value ($000) $1,853 Avg Close — Range —
Q1 2016
Shares 2,909,417 Value ($000) $2,124 Avg Close — Range —
Q4 2015
Shares 3,139,517 Value ($000) $3,579 Avg Close — Range —
Q3 2015
Shares 3,139,517 Value ($000) $3,234 Avg Close — Range —
Q2 2015
Shares 3,139,517 Value ($000) $7,629 Avg Close — Range —
Q1 2015
Shares 3,139,517 Value ($000) $12,370 Avg Close — Range —
Q4 2014
Shares 3,139,517 Value ($000) $14,348 Avg Close — Range —
Q3 2014
Shares 2,404,017 Value ($000) $10,217 Avg Close — Range —
Q2 2014
Shares 2,266,717 Value ($000) $19,834 Avg Close — Range —
Q1 2014
Shares 2,048,517 Value ($000) $23,128 Avg Close — Range —
Q4 2013
Shares 1,527,617 Value ($000) $15,199 Avg Close — Range —
Q3 2013
Shares 1,828,453 Value ($000) $22,143 Avg Close — Range —
Q2 2013
Shares 1,741,305 Value ($000) $13,948 Avg Close — Range —