RUBICON TECHNOLOGY INC

CUSIP: 78112T107 Class: COM

D. E. Shaw & Co., Inc.'s Holding History (CIK: 0001009207)

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

Q1 2014
Shares 14,818 Value ($000) $167 Avg Close — Range —
Q2 2013
Shares 14,788 Value ($000) $118 Avg Close — Range —