SUMMIT MATLS INC

CUSIP: 86614U100 Class: Common Stock

K2 PRINCIPAL FUND, L.P.'s Holding History (CIK: 0001461790)

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

Q1 2019
Shares 57,001 Value ($000) $905 Avg Close — Range —
Q3 2018
Shares 35,000 Value ($000) $636 Avg Close — Range —