Insider Trading activities of Summit Materials, Inc. insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Summit Materials, Inc. since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Summit Materials, Inc. since year 2005. Table 2 shows the detailed insider transactions of Summit Materials, Inc. since 2005. The reporting company's ticker symbol is SUM. The reporting company's CIK number is 1621563.
The total value of stock buying since 2005 is $1,553,359.
The total value of stock sales since 2005 is $1,701,799,039.
The total value of stock option exercises since 2005 is $11,358,961.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Summit Materials, Inc. (SUM).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2017-10 0 $0 12,500 $401,371 0 $0
2017-09 0 $0 177,387 $5,400,690 32,473 $578,965
2017-08 0 $0 427,647 $12,446,765 507,272 $9,037,812
2017-07 0 $0 25,000 $724,614 0 $0
2017-06 0 $0 71,500 $1,979,310 0 $0
2017-05 0 $0 189,054 $5,311,097 69,402 $1,165,590
2017-04 0 $0 25,000 $627,378 0 $0
2017-03 0 $0 73,865 $1,785,487 32,033 $576,594
2017-02 0 $0 20,000 $480,250 67,095 $0
2017-01 0 $0 20,000 $481,650 0 $0
2016-12 0 $0 1,860,022 $44,632,992 0 $0
2016-11 0 $0 33,078,971 $723,458,538 0 $0
2016-10 0 $0 17,700 $340,335 0 $0
2016-09 6,000 $113,580 10,000 $178,699 0 $0
2016-08 0 $0 70,000 $1,363,700 0 $0
2016-07 402 $8,779 24,719,204 $510,966,294 0 $0
2016-06 0 $0 20,000 $413,350 0 $0
2016-05 0 $0 95,000 $2,068,309 0 $0
2016-04 0 $0 19,437,378 $388,738,210 0 $0
2015-03 79,500 $1,431,000 0 $0 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Summit Materials, Inc. insiders (SUM)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
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.