U S SILICA HLDGS INC

CUSIP: 90346E103 Class: Common Stock

HBK INVESTMENTS L P's Holding History (CIK: 0001011443)

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

Q4 2018
Shares 62,538 Value ($000) $637 Avg Close — Range —
Q4 2015
Shares 14,500 Value ($000) $272 Avg Close — Range —
Q3 2015
Shares 51,600 Value ($000) $727 Avg Close — Range —
Q4 2014
Shares 235,676 Value ($000) $6,055 Avg Close — Range —
Q3 2014
Shares 154,600 Value ($000) $9,664 Avg Close — Range —
Q2 2014
Shares 28,900 Value ($000) $1,602 Avg Close — Range —
Q4 2013
Shares 44,900 Value ($000) $1,532 Avg Close — Range —