Holding/activity history for Summit Materials Inc. (SUM)
| Period | Shares | % of Portfolio | Activity | % Change to Portfolio | Reported Price |
| 2016 Q1 | 0 | 0 | Sell 100.00% | 0.45 | |
| 2015 Q4 | 1,007,688 | 0.45 | Add 7.90% | 0.03 | $20.04 |
| 2015 Q3 | 933,900 | 0.35 | Add 55.65% | 0.13 | $18.77 |
| 2015 Q2 | 600,000 | 0.25 | $25.50 | ||
| 2015 Q1 | 600,000 | 0.22 | Buy | 0.22 | $22.15 |