RUBICON TECHNOLOGY INC

CUSIP: 78112T107 Class: COM

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q1 2017
Shares 65,391 Value ($000) $54 Avg Close — Range —
Q4 2016
Shares 68,332 Value ($000) $41 Avg Close — Range —
Q3 2016
Shares 211,366 Value ($000) $133 Avg Close — Range —
Q2 2016
Shares 211,366 Value ($000) $143 Avg Close — Range —
Q1 2016
Shares 211,366 Value ($000) $202 Avg Close — Range —
Q4 2015
Shares 211,536 Value ($000) $241 Avg Close — Range —
Q3 2015
Shares 213,384 Value ($000) $220 Avg Close — Range —
Q2 2015
Shares 249,205 Value ($000) $606 Avg Close — Range —
Q1 2015
Shares 437,122 Value ($000) $1,722 Avg Close — Range —
Q4 2014
Shares 443,335 Value ($000) $2,026 Avg Close — Range —
Q3 2014
Shares 452,994 Value ($000) $1,925 Avg Close — Range —
Q2 2014
Shares 272,931 Value ($000) $2,389 Avg Close — Range —
Q1 2014
Shares 439,115 Value ($000) $4,958 Avg Close — Range —
Q4 2013
Shares 263,754 Value ($000) $2,624 Avg Close — Range —
Q3 2013
Shares 259,176 Value ($000) $3,139 Avg Close — Range —
Q2 2013
Shares 247,083 Value ($000) $1,969 Avg Close — Range —