Summit Materials, Inc.

CUSIP: 86614u100 Class: COM

ICON ADVISERS INC/CO's Holding History (CIK: 0001058470)

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

Q1 2017
Shares 200,882 Value ($000) $4,964 Avg Close — Range —
Q4 2016
Shares 200,882 Value ($000) $4,779 Avg Close — Range —
Q3 2016
Shares 226,000 Value ($000) $4,192 Avg Close — Range —