U S SILICA HLDGS INC

CUSIP: 90346E103 Class: Common Stock

CAMPBELL NEWMAN ASSET MANAGEMENT INC's Holding History (CIK: 0000874791)

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

Q4 2014
Shares 8,854 Value ($000) $227 Avg Close — Range —
Q3 2014
Shares 10,784 Value ($000) $674 Avg Close — Range —