Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Summit Materials, Inc. (SUM) since 2015 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Summit Materials, Inc.. (See page 1 of this report.) Table 2 shows the detailed insider transactions. This company's CIK number is 1621563.
Total stock buying since 2015: $4,181,491.
Total stock sales since 2015: $1,750,681,513.
Total stock option exercises since 2015: $32,886,209.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2024 | 0 | $0 | 52,125 | $2,115,668 | 187,424 | $947,297 |
| 2023 | 0 | $0 | 0 | $0 | 119,868 | $0 |
| 2022 | 0 | $0 | 0 | $0 | 91,592 | $0 |
| 2021 | 0 | $0 | 45,321 | $1,401,942 | 138,735 | $0 |
| 2020 | 71,100 | $1,106,080 | 14,843 | $249,730 | 168,725 | $0 |
| 2019 | 31,250 | $507,812 | 719,110 | $17,024,705 | 822,485 | $9,869,196 |
| 2018 | 54,500 | $1,014,240 | 706,783 | $21,693,737 | 546,744 | $8,478,032 |
| 2017 | 0 | $0 | 1,245,895 | $36,035,304 | 834,587 | $13,591,684 |
| 2016 | 6,402 | $122,359 | 79,308,275 | $1,672,160,427 | 0 | $0 |
| 2015 | 79,500 | $1,431,000 | 0 | $0 | 0 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2018-02-28 | Hill Thomas W. (President & CEO) | Sale | 6,200 | 32.02 | 198,524 |
| 2018-02-28 | Hill Thomas W. (President & CEO) | Option Ex | 10,253 | .00 | 0 |
| 2018-02-28 | Cantie Joseph S (Director) | Option Ex | 4,098 | .00 | 0 |
| 2018-02-28 | Simpkins Neil P (Director) | Option Ex | 4,098 | .00 | 0 |
| 2018-02-28 | Murphy John Raymond (Director) | Option Ex | 4,098 | .00 | 0 |
| 2018-02-28 | Gardner Ted A (Director) | Option Ex | 4,098 | .00 | 0 |
| 2018-02-28 | Lance Howard L (Director) | Option Ex | 4,098 | .00 | 0 |
| 2018-02-28 | Wunning Steven H (Director) | Option Ex | 4,098 | .00 | 0 |
| 2018-02-27 | Benedict Anne Lee (See Remarks) | Sale | 26,167 | 32.32 | 845,717 |
| 2018-02-27 | Benedict Anne Lee (See Remarks) | Option Ex | 26,167 | 17.54 | 458,838 |
| 2018-02-27 | Hill Thomas W. (President & CEO) | Sale | 6,300 | 32.04 | 201,852 |
| 2018-02-24 | Beck Thomas A. (See Remarks) | Option Ex | 2,543 | .00 | 0 |
| 2018-02-24 | Brady Michael John (See Remarks) | Option Ex | 2,698 | .00 | 0 |
| 2018-02-24 | Evans Mikel Shane (See Remarks) | Option Ex | 2,829 | .00 | 0 |
| 2018-02-24 | Hill Thomas W. (President and CEO) | Option Ex | 14,381 | .00 | 0 |
| 2018-02-20 | Murphy John Raymond (Director) | Sale | 2,657 | 32.07 | 85,209 |
| 2018-02-16 | Murphy John Raymond (Director) | Sale | 5,000 | 32.62 | 163,100 |
| 2018-02-09 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 28.16 | 174,592 |
| 2018-02-08 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 29.02 | 182,857 |
| 2018-01-23 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 31.75 | 196,819 |
| 2018-01-22 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 31.04 | 195,552 |
| 2018-01-11 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 31.45 | 194,990 |
| 2018-01-10 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 31.03 | 195,489 |
| 2017-12-21 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 30.58 | 189,596 |
| 2017-12-20 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 29.93 | 188,559 |
| 2017-12-11 | Murphy Damian John (EVP & East Division President) | Sale | 115,118 | 31.75 | 3,654,996 |
| 2017-12-11 | Murphy Damian John (EVP & East Division President) | Option Ex | 115,118 | 17.69 | 2,036,437 |
| 2017-12-07 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 30.65 | 190,030 |
| 2017-12-06 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 31.02 | 195,426 |
| 2017-11-22 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 29.86 | 185,132 |
| 2017-11-21 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 29.75 | 187,425 |
| 2017-11-09 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 30.33 | 188,046 |
| 2017-11-08 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 30.19 | 190,197 |
| 2017-11-01 | Rauh Douglas Charles (See Remarks) | Sale | 26,324 | 31.37 | 825,731 |
| 2017-11-01 | Rauh Douglas Charles (See Remarks) | Option Ex | 11,194 | 17.54 | 196,286 |
| 2017-10-24 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 32.21 | 199,702 |
| 2017-10-23 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 32.04 | 201,852 |
| 2017-10-04 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 32.15 | 199,330 |
| 2017-10-03 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 32.07 | 202,041 |
| 2017-09-22 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 31.61 | 195,982 |
| 2017-09-21 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 31.51 | 198,513 |
| 2017-09-15 | Beck Thomas A. (See Remarks) | Sale | 18,354 | 29.31 | 537,955 |
| 2017-09-11 | Murphy Damian John (EVP & East Division President) | Sale | 404 | 30.29 | 12,237 |
| 2017-09-08 | Murphy Damian John (EVP & East Division President) | Sale | 99,596 | 30.66 | 3,053,613 |
| 2017-09-07 | Beck Thomas A. (See Remarks) | Sale | 1,560 | 30.10 | 46,956 |
| 2017-09-07 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 30.04 | 186,248 |
| 2017-09-06 | Beck Thomas A. (See Remarks) | Sale | 17,899 | 30.24 | 541,265 |
| 2017-09-06 | Beck Thomas A. (See Remarks) | Option Ex | 17,899 | 17.69 | 316,633 |
| 2017-09-06 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 30.27 | 190,701 |
| 2017-09-01 | Rauh Douglas Charles (See Remarks) | Sale | 14,574 | 30.00 | 437,220 |
| 2017-09-01 | Rauh Douglas Charles (See Remarks) | Option Ex | 14,574 | 18.00 | 262,332 |
| 2017-08-23 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 28.27 | 175,274 |
| 2017-08-22 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 28.14 | 177,282 |
| 2017-08-11 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 28.31 | 175,522 |
| 2017-08-10 | Rauh Douglas Charles (See Remarks) | Sale | 100,000 | 28.69 | 2,869,000 |
| 2017-08-10 | Rauh Douglas Charles (See Remarks) | Option Ex | 100,000 | 18.00 | 1,800,000 |
| 2017-08-10 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 28.80 | 181,440 |
| 2017-08-09 | Wunning Steven H (Director) | Option Ex | 4,625 | .00 | 0 |
| 2017-08-07 | Hill Thomas W. (President and CEO) | Sale | 40,681 | 29.42 | 1,196,835 |
| 2017-08-07 | Hill Thomas W. (President and CEO) | Option Ex | 140,681 | 18.00 | 2,532,258 |
| 2017-08-04 | Rauh Douglas Charles (See Remarks) | Sale | 31,500 | 29.32 | 923,580 |
| 2017-08-04 | Rauh Douglas Charles (See Remarks) | Option Ex | 31,500 | 18.00 | 567,000 |
| 2017-08-04 | Benedict Anne Lee (See Remarks) | Sale | 21,147 | 29.27 | 618,972 |
| 2017-08-04 | Benedict Anne Lee (See Remarks) | Option Ex | 21,147 | 17.54 | 370,812 |
| 2017-08-04 | Hill Thomas W. (President and CEO) | Sale | 209,319 | 29.28 | 6,128,860 |
| 2017-08-04 | Hill Thomas W. (President and CEO) | Option Ex | 209,319 | 18.00 | 3,767,742 |
| 2017-07-25 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 28.76 | 178,312 |
| 2017-07-24 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 28.74 | 181,062 |
| 2017-07-07 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 29.32 | 181,784 |
| 2017-07-06 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 29.12 | 183,456 |
| 2017-06-23 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 28.02 | 173,724 |
| 2017-06-22 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 27.53 | 173,439 |
| 2017-06-15 | Harris Brian James (EVP & Chief Financial Officer) | Sale | 20,000 | 28.20 | 563,940 |
| 2017-06-14 | Benedict Anne Lee (See Remarks) | Sale | 7,500 | 28.48 | 213,600 |
| 2017-06-08 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 27.95 | 173,290 |
| 2017-06-07 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 27.29 | 171,927 |
| 2017-06-06 | Rauh Douglas Charles (See Remarks) | Sale | 19,000 | 26.81 | 509,390 |
| 2017-05-26 | Cantie Joseph S (Director) | Option Ex | 4,647 | .00 | 0 |
| 2017-05-24 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 26.78 | 166,036 |
| 2017-05-23 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 27.09 | 170,667 |
| 2017-05-12 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 26.79 | 166,098 |
| 2017-05-11 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 27.04 | 170,352 |
| 2017-05-05 | Evans Mikel Shane (See Remarks) | Sale | 37,200 | 28.57 | 1,062,618 |
| 2017-05-05 | Evans Mikel Shane (See Remarks) | Option Ex | 7,200 | 18.00 | 129,600 |
| 2017-05-05 | Murphy Damian John (EVP & East Division President) | Sale | 98,510 | 28.18 | 2,776,011 |
| 2017-05-05 | Murphy John Raymond (Director) | Sale | 7,000 | 28.69 | 200,830 |
| 2017-05-05 | Gardner Ted A (Director) | Sale | 21,344 | 28.04 | 598,485 |
| 2017-05-04 | Gardner Ted A (Director) | Option Ex | 57,555 | 18.00 | 1,035,990 |
| 2017-04-26 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 26.06 | 161,572 |
| 2017-04-25 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 26.09 | 164,367 |
| 2017-04-04 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 24.10 | 149,420 |
| 2017-04-03 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 24.13 | 152,019 |
| 2017-03-23 | Hill Thomas W. (President and CEO) | Sale | 6,200 | 23.68 | 146,816 |
| 2017-03-22 | Hill Thomas W. (President and CEO) | Sale | 6,300 | 23.28 | 146,664 |
| 2017-03-16 | Murphy Damian John (EVP & East Division President) | Sale | 32,033 | 24.09 | 771,674 |
| 2017-03-16 | Murphy Damian John (EVP & East Division President) | Option Ex | 32,033 | 18.00 | 576,594 |
| 2017-03-09 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 23.91 | 119,550 |
| 2017-03-08 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 24.27 | 121,350 |
| 2017-03-01 | Gardner Ted A (Director) | Sale | 19,332 | 24.80 | 479,433 |
| 2017-02-28 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 23.89 | 119,450 |
| 2017-02-27 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 24.28 | 121,400 |
| 2017-02-24 | Wade Anne K. (Director) | Option Ex | 6,414 | .00 | 0 |
| 2017-02-24 | Beck Thomas A. (See Remarks) | Option Ex | 2,544 | .00 | 0 |
| 2017-02-24 | Brady Michael John (See Remarks) | Option Ex | 2,699 | .00 | 0 |
| 2017-02-24 | Gill Kevin A (See Remarks) | Option Ex | 2,313 | .00 | 0 |
| 2017-02-24 | Evans Mikel Shane (See Remarks) | Option Ex | 2,830 | .00 | 0 |
| 2017-02-24 | Rauh Douglas Charles (See Remarks) | Option Ex | 5,677 | .00 | 0 |
| 2017-02-24 | Harris Brian James (EVP & Chief Financial Officer) | Option Ex | 5,677 | .00 | 0 |
| 2017-02-24 | Murphy Damian John (EVP & East Division President) | Option Ex | 2,671 | .00 | 0 |
| 2017-02-24 | Benedict Anne Lee (See Remarks) | Option Ex | 2,646 | .00 | 0 |
| 2017-02-24 | Hill Thomas W. (President and CEO) | Option Ex | 14,382 | .00 | 0 |
| 2017-02-24 | Murphy John Raymond (Director) | Option Ex | 6,414 | .00 | 0 |
| 2017-02-24 | Gardner Ted A (Director) | Option Ex | 6,414 | .00 | 0 |
| 2017-02-24 | Lance Howard L (Director) | Option Ex | 6,414 | .00 | 0 |
| 2017-02-17 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 23.78 | 118,900 |
| 2017-02-16 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 24.10 | 120,500 |
| 2017-01-18 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 23.65 | 118,250 |
| 2017-01-17 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 23.54 | 117,700 |
| 2017-01-05 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 24.46 | 122,300 |
| 2017-01-04 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 24.68 | 123,400 |
| 2016-12-21 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 24.41 | 122,050 |
| 2016-12-20 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 23.97 | 119,850 |
| 2016-12-16 | Evans Mikel Shane (See Remarks) | Sale | 60,000 | 23.75 | 1,425,300 |
| 2016-12-16 | Harris Brian James (EVP & Chief Financial Officer) | Sale | 24,000 | 23.61 | 566,640 |
| 2016-12-15 | Brady Michael John (See Remarks) | Sale | 112,825 | 23.76 | 2,680,722 |
| 2016-12-15 | Gardner Ted A (Director) | Sale | 22 | 23.40 | 514 |
| 2016-12-12 | Brady Michael John (See Remarks) | Sale | 12,175 | 24.18 | 294,391 |
| 2016-12-12 | Rauh Douglas Charles (See Remarks) | Sale | 20,000 | 24.15 | 483,000 |
| 2016-12-12 | Gardner Ted A (Director) | Sale | 1,611,000 | 24.02 | 38,704,275 |
| 2016-12-07 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 23.73 | 118,650 |
| 2016-12-06 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 23.52 | 117,600 |
| 2016-11-22 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 23.37 | 116,850 |
| 2016-11-21 | Hill Thomas W. (President and CEO) | Sale | 7,300 | 23.78 | 173,594 |
| 2016-11-16 | Gill Kevin A (See Remarks) | Sale | 10,000 | 21.87 | 218,700 |
| 2016-11-16 | Blackstone Lr Associates (cayman) V-nq Ltd. (10% Owner) | Sale | 16,451,722 | 21.87 | 359,799,160 |
| 2016-11-16 | Evans Mikel Shane (See Remarks) | Sale | 50,000 | 21.87 | 1,093,500 |
| 2016-11-16 | Rauh Douglas Charles (See Remarks) | Sale | 80,000 | 21.87 | 1,749,600 |
| 2016-11-16 | Benedict Anne Lee (See Remarks) | Sale | 7,500 | 21.87 | 164,025 |
| 2016-11-16 | Lance Howard L (Director) | Sale | 15,727 | 21.87 | 343,949 |
| 2016-11-16 | Schwarzman Stephen A (10% Owner) | Sale | 16,451,722 | 21.87 | 359,799,160 |
| 2016-10-25 | Hill Thomas W. (President & CEO) | Sale | 2,700 | 19.05 | 51,435 |
| 2016-10-24 | Hill Thomas W. (President & CEO) | Sale | 15,000 | 19.26 | 288,900 |
| 2016-09-15 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 17.91 | 89,550 |
| 2016-09-14 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 17.83 | 89,149 |
| 2016-09-06 | Murphy John Raymond (Director) | Buy | 6,000 | 18.93 | 113,580 |
| 2016-08-26 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 20.00 | 100,000 |
| 2016-08-25 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 19.94 | 99,700 |
| 2016-08-19 | Rauh Douglas Charles (See Remarks) | Sale | 50,000 | 19.32 | 966,000 |
| 2016-08-18 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 19.75 | 98,750 |
| 2016-08-17 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 19.85 | 99,250 |
| 2016-07-21 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 21.79 | 108,950 |
| 2016-07-20 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 22.06 | 110,300 |
| 2016-07-19 | Blackstone Lr Associates (cayman) V-nq Ltd. (10% Owner) | Sale | 12,209,704 | 20.67 | 252,374,581 |
| 2016-07-19 | Evans Mikel Shane (See Remarks) | Sale | 39,400 | 20.67 | 814,398 |
| 2016-07-19 | Rauh Douglas Charles (See Remarks) | Sale | 4,815 | 20.67 | 99,526 |
| 2016-07-19 | Harris Brian James (EVP & Chief Financial Officer) | Sale | 30,000 | 20.67 | 620,100 |
| 2016-07-19 | Benedict Anne Lee (See Remarks) | Sale | 5,000 | 20.67 | 103,350 |
| 2016-07-19 | Hill Thomas W. (President and CEO) | Sale | 173,581 | 20.67 | 3,587,919 |
| 2016-07-19 | Lance Howard L (Director) | Sale | 27,000 | 20.67 | 558,090 |
| 2016-07-19 | Schwarzman Stephen A (10% Owner) | Sale | 12,209,704 | 20.67 | 252,374,581 |
| 2016-07-19 | Barclays Plc | Buy | 402 | 21.84 | 8,779 |
| 2016-07-14 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 21.32 | 106,600 |
| 2016-07-13 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 21.58 | 107,899 |
| 2016-06-23 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 20.73 | 103,650 |
| 2016-06-22 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 20.04 | 100,200 |
| 2016-06-10 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 20.52 | 102,600 |
| 2016-06-09 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 21.38 | 106,900 |
| 2016-05-25 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 22.37 | 111,850 |
| 2016-05-24 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 22.45 | 112,250 |
| 2016-05-23 | Brady Michael John (See Remarks) | Sale | 35,228 | 21.85 | 769,731 |
| 2016-05-20 | Brady Michael John (See Remarks) | Sale | 39,772 | 21.59 | 858,478 |
| 2016-05-16 | Rauh Douglas Charles (See Remarks) | Sale | 10,000 | 21.60 | 216,000 |
| 2016-04-27 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 21.71 | 108,550 |
| 2016-04-26 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 21.20 | 106,000 |
| 2016-04-19 | Gill Kevin A (See Remarks) | Sale | 4,602 | 20.00 | 92,040 |
| 2016-04-19 | Blackstone Lr Associates (cayman) V-nq Ltd. (10% Owner) | Sale | 9,272,378 | 20.00 | 185,447,560 |
| 2016-04-19 | Evans Mikel Shane (See Remarks) | Sale | 20,000 | 20.00 | 400,000 |
| 2016-04-19 | Harris Brian James (EVP & Chief Financial Officer) | Sale | 81,252 | 20.00 | 1,625,040 |
| 2016-04-19 | Benedict Anne Lee (See Remarks) | Sale | 5,500 | 20.00 | 110,000 |
| 2016-04-19 | Hill Thomas W. (President and CEO) | Sale | 43,464 | 20.00 | 869,280 |
| 2016-04-19 | Gardner Ted A (Director) | Sale | 572,804 | 20.00 | 11,456,080 |
| 2016-04-19 | Schwarzman Stephen A (10% Owner) | Sale | 9,272,378 | 20.00 | 185,447,560 |
| 2016-04-14 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 20.13 | 100,650 |
| 2016-04-13 | Hill Thomas W. (President and CEO) | Sale | 5,000 | 20.34 | 101,700 |
| 2016-04-06 | Lance Howard L (Director) | Sale | 75,000 | 19.79 | 1,484,250 |
| 2016-04-05 | Rauh Douglas Charles (See Remarks) | Sale | 70,000 | 19.85 | 1,389,500 |
| 2015-03-17 | Evans Mikel Shane (See Remarks) | Buy | 6,000 | 18.00 | 108,000 |
| 2015-03-17 | Rauh Douglas Charles (See Remarks) | Buy | 3,500 | 18.00 | 63,000 |
| 2015-03-17 | Harris Brian James (EVP & Chief Financial Officer) | Buy | 55,000 | 18.00 | 990,000 |
| 2015-03-17 | Murphy Damian John (EVP & Central Region President) | Buy | 3,000 | 18.00 | 54,000 |
| 2015-03-17 | Benedict Anne Lee (See Remarks) | Buy | 2,000 | 18.00 | 36,000 |
| 2015-03-17 | Hill Thomas W. (President and CEO) | Buy | 10,000 | 18.00 | 180,000 |
Insider trading activities including stock purchases, stock sales, and option exercises of SUM listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Summit Materials, Inc. (symbol SUM, CIK number 1621563) see the Securities and Exchange Commission (SEC) website.