U S SILICA HLDGS INC

CUSIP: 90346E103 Class: Common Stock

Park West Asset Management LLC's Holding History (CIK: 0001386928)

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

Q3 2013
Shares 100,000 Value ($000) $2,490 Avg Close — Range —
Q2 2013
Shares 745,339 Value ($000) $15,488 Avg Close — Range —