SUMMIT MATLS INC

CUSIP: 86614U100 Class: Common Stock

Atika Capital Management LLC's Holding History (CIK: 0001599731)

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

Q3 2017
Shares 74,500 Value ($000) $2,386 Avg Close — Range —
Q2 2017
Shares 115,000 Value ($000) $3,320 Avg Close — Range —
Q1 2017
Shares 115,000 Value ($000) $2,841 Avg Close — Range —
Q4 2016
Shares 197,219 Value ($000) $4,692 Avg Close — Range —
Q4 2015
Shares 128,474 Value ($000) $2,574 Avg Close — Range —
Q3 2015
Shares 160,000 Value ($000) $3,003 Avg Close — Range —
Q2 2015
Shares 61,000 Value ($000) $1,555 Avg Close — Range —