RUBICON TECHNOLOGY INC

CUSIP: 78112T107 Class: COM

VAN DEN BERG MANAGEMENT I, INC's Holding History (CIK: 0001142062)

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

Q3 2014
Shares 114,690 Value ($000) $487 Avg Close — Range —
Q2 2014
Shares 109,135 Value ($000) $955 Avg Close — Range —
Q1 2014
Shares 110,715 Value ($000) $1,250 Avg Close — Range —
Q4 2013
Shares 110,840 Value ($000) $1,103 Avg Close — Range —
Q3 2013
Shares 66,470 Value ($000) $805 Avg Close — Range —