RUBICON TECHNOLOGY INC

CUSIP: 78112T107 Class: COM

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q3 2014
Shares 62,705 Value ($000) $266 Avg Close — Range —
Q4 2013
Shares 11,900 Value ($000) $118 Avg Close — Range —
Q3 2013
Shares 11,900 Value ($000) $144 Avg Close — Range —
Q2 2013
Shares 11,900 Value ($000) $95 Avg Close — Range —