U S SILICA HLDGS INC

CUSIP: 90346E103 Class: Common Stock

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q4 2017
Shares 84,075 Value ($000) $2,737 Avg Close — Range —
Q3 2017
Shares 154,936 Value ($000) $4,814 Avg Close — Range —
Q2 2017
Shares 308,919 Value ($000) $10,964 Avg Close — Range —
Q1 2017
Shares 437,637 Value ($000) $21,002 Avg Close — Range —
Q4 2016
Shares 326,220 Value ($000) $18,490 Avg Close — Range —
Q3 2016
Shares 416,125 Value ($000) $19,375 Avg Close — Range —
Q2 2016
Shares 521,760 Value ($000) $17,985 Avg Close — Range —
Q1 2016
Shares 653,925 Value ($000) $14,857 Avg Close — Range —
Q4 2015
Shares 221,400 Value ($000) $4,147 Avg Close — Range —
Q2 2015
Shares 170,700 Value ($000) $5,012 Avg Close — Range —
Q1 2015
Shares 146,700 Value ($000) $5,224 Avg Close — Range —
Q3 2014
Shares 572,790 Value ($000) $21,863 Avg Close — Range —
Q2 2014
Shares 572,790 Value ($000) $31,755 Avg Close — Range —
Q1 2014
Shares 572,790 Value ($000) $21,863 Avg Close — Range —
Q4 2013
Shares 516,600 Value ($000) $17,621 Avg Close — Range —
Q3 2013
Shares 497,790 Value ($000) $31,117 Avg Close — Range —
Q2 2013
Shares 497,460 Value ($000) $10,337 Avg Close — Range —