| 2019-11-20 | Sale | Summit Materials, Inc. SUM | EVP & Chief Financial Officer | 261,155 0.2327% | $24.14 | $6.3M | -30.19% | |
| 2019-11-19 | Sale | Summit Materials, Inc. SUM | EVP & Chief Financial Officer | 30,000 0.0266% | $23.75 | $712,500 | -29.4% | |
| 2019-11-04 | Sale | Summit Materials, Inc. SUM | EVP & Chief Financial Officer | 30,000 0.0269% | $23.60 | $708,000 | -28.22% | |
| 2018-12-10 | Summit Materials, Inc. SUM | EVP & Chief Financial Officer | 4,000 0.0036% | $13.00 | $52,000 | +34.83% | ||
| 2018-12-04 | Summit Materials, Inc. SUM | EVP & Chief Financial Officer | 4,000 0.0036% | $13.19 | $52,760 | +30.75% | ||
| 2018-11-08 | Summit Materials, Inc. SUM | EVP & Chief Financial Officer | 10,000 0.0091% | $14.12 | $141,200 | +20.47% | ||
| 2017-06-15 | Sale | Summit Materials, Inc. SUM | EVP & Chief Financial Officer | 20,000 0.019% | $28.20 | $563,930 | +7.16% | |
| 2016-12-16 | Sale | Summit Materials, Inc. SUM | EVP & Chief Financial Officer | 24,000 0.0278% | $23.61 | $566,640 | +17.69% | |
| 2016-07-19 | Sale | Summit Materials, Inc. SUM | EVP & Chief Financial Officer | 30,000 0.0393% | $20.67 | $620,100 | +10.25% | |
| 2016-04-19 | Sale | Summit Materials, Inc. SUM | EVP & Chief Financial Officer | 81,252 0.1314% | $20.00 | $1.63M | +8.13% | |
| 2015-03-17 | Summit Materials, Inc. SUM | EVP & Chief Financial Officer | 55,000 0.1757% | $18.00 | $990,000 | +4.37% |