| Symbol | Company | Owner | Relationship | Date | Transaction | Cost | # Shares | Value ($) | Total Shares | Filing | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SUM | Summit Materials, Inc. | Rauh Douglas Charles | See Remarks | Nov 01, 2017 | Sale | $27.14 | 37,518 | 1,018,222 | 18,507 | Nov 03, 2017, 06:02 PM | |
| SUM | Summit Materials, Inc. | Rauh Douglas Charles | See Remarks | Sep 01, 2017 | Sale | $24.00 | 29,148 | 699,552 | 21,887 | Sep 05, 2017, 06:00 PM | |
| SUM | Summit Materials, Inc. | Rauh Douglas Charles | See Remarks | Aug 10, 2017 | Sale | $23.35 | 200,000 | 4,669,000 | 107,313 | Aug 11, 2017, 06:08 PM | |
| SUM | Summit Materials, Inc. | Rauh Douglas Charles | See Remarks | Aug 04, 2017 | Option Exercise | $23.66 | 63,000 | 1,490,580 | 38,813 | Aug 08, 2017, 05:03 PM | |
| SUM | Summit Materials, Inc. | Rauh Douglas Charles | See Remarks | Jun 06, 2017 | Sale | $26.81 | 19,000 | 509,390 | 7,313 | Jun 07, 2017, 08:10 PM | |
| SUM | Summit Materials, Inc. | Rauh Douglas Charles | See Remarks | Feb 24, 2017 | Option Exercise | $23.75 | 1,958 | 46,503 | 7,313 | Feb 28, 2017, 08:19 PM | |
| SUM | Summit Materials, Inc. | Rauh Douglas Charles | See Remarks | Dec 12, 2016 | Sale | $24.15 | 20,000 | 483,000 | 3,552 | Dec 13, 2016, 07:03 PM | |
| SUM | Summit Materials, Inc. | Rauh Douglas Charles | See Remarks | Nov 16, 2016 | Sale | $21.87 | 80,000 | 1,749,600 | 3,552 | Nov 18, 2016, 06:02 PM | |
| SUM | Summit Materials, Inc. | Rauh Douglas Charles | See Remarks | Aug 19, 2016 | Sale | $19.32 | 50,000 | 966,000 | 3,552 | Aug 22, 2016, 04:24 PM | |
| SUM | Summit Materials, Inc. | Rauh Douglas Charles | See Remarks | Jul 19, 2016 | Sale | $20.67 | 4,815 | 99,526 | 3,552 | Jul 21, 2016, 07:01 PM | |
| SUM | Summit Materials, Inc. | Rauh Douglas Charles | See Remarks | May 16, 2016 | Sale | $21.60 | 10,000 | 216,000 | 3,552 | May 18, 2016, 06:00 PM | |
| SUM | Summit Materials, Inc. | Rauh Douglas Charles | See Remarks | Apr 05, 2016 | Sale | $19.85 | 70,000 | 1,389,500 | 3,552 | Apr 07, 2016, 09:00 PM | |
| SUM | Summit Materials, Inc. | Rauh Douglas Charles | See Remarks | Mar 17, 2015 | Buy | $18.00 | 3,500 | 63,000 | 3,500 | Mar 19, 2015, 05:33 PM |
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