U S SILICA HLDGS INC

CUSIP: 90346E103 Class: Common Stock

Alyeska Investment Group, L.P.'s Holding History (CIK: 0001453072)

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

Q4 2017
Shares 1,256,223 Value ($000) $40,903 Avg Close — Range —
Q3 2017
Shares 565,031 Value ($000) $17,556 Avg Close — Range —
Q2 2017
Shares 1,394,444 Value ($000) $49,489 Avg Close — Range —
Q1 2017
Shares 1,084,624 Value ($000) $52,051 Avg Close — Range —
Q4 2016
Shares 1,079,551 Value ($000) $61,189 Avg Close — Range —
Q3 2016
Shares 1,209,704 Value ($000) $56,324 Avg Close — Range —
Q2 2016
Shares 1,766,485 Value ($000) $60,891 Avg Close — Range —
Q1 2016
Shares 1,669,066 Value ($000) $37,921 Avg Close — Range —
Q4 2015
Shares 1,037,668 Value ($000) $19,436 Avg Close — Range —
Q3 2015
Shares 1,388,987 Value ($000) $19,571 Avg Close — Range —
Q2 2015
Shares 1,247,685 Value ($000) $36,632 Avg Close — Range —
Q1 2015
Shares 697,586 Value ($000) $24,841 Avg Close — Range —
Q4 2014
Shares 1,438,970 Value ($000) $36,967 Avg Close — Range —
Q3 2014
Shares 361,543 Value ($000) $22,600 Avg Close — Range —
Q2 2014
Shares 433,806 Value ($000) $24,050 Avg Close — Range —
Q1 2014
Shares 395,901 Value ($000) $15,112 Avg Close — Range —
Q4 2013
Shares 223,538 Value ($000) $7,625 Avg Close — Range —
Q2 2013
Shares 86,575 Value ($000) $1,799 Avg Close — Range —