U S SILICA HLDGS INC

CUSIP: 90346E103 Class: Common Stock

Asset Management One Co., Ltd.'s Holding History (CIK: 0001068855)

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

Q4 2014
Shares 12,848 Value ($000) $333 Avg Close — Range —
Q3 2014
Shares 65,393 Value ($000) $4,149 Avg Close — Range —
Q2 2014
Shares 45,551 Value ($000) $2,465 Avg Close — Range —
Q1 2014
Shares 21,005 Value ($000) $767 Avg Close — Range —