SUMMIT MATERIALS INC -CL A - COMMON STOCK (SUM) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2015 to Q3 2025

Type / Class
Equity / COMMON STOCK
Symbol
SUM
Shares outstanding
178,464,433
Price per share
$39.03
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
3,590
Total reported value
$140,145
% of total 13F portfolios
0%
Share change
+3,400
Value change
+$132,702
Number of holders
3
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of SUMMIT MATERIALS INC -CL A - COMMON STOCK (SUM) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
PRICE T ROWE ASSOCIATES INC /MD/ 3% $270,908,474 5,353,933 T. Rowe Price Associates, Inc. 31 Dec 2024

As of 30 Sep 2025, 3 institutional investors reported holding 3,590 shares of SUMMIT MATERIALS INC -CL A - COMMON STOCK (SUM). This represents 0% of the company’s total 178,464,433 outstanding shares.

Institutional Holders of SUMMIT MATERIALS INC -CL A - COMMON STOCK (SUM) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q3 3,590 $140,145 +$132,702 $39.03 3
2025 Q2 190 $6,988 -$564,204 $44.56 2
2025 Q1 12,244 $563,328 -$5,764,248,882 $50.60 7
2024 Q4 115,408,822 $5,839,528,492 -$330,907,012 $50.60 390
2024 Q3 122,451,287 $4,788,591,146 +$26,345,197 $39.03 331
2024 Q2 122,003,566 $4,465,497,316 +$2,441,136 $36.61 300
2024 Q1 120,751,737 $5,379,860,819 +$75,986,180 $44.57 303
2023 Q4 119,981,494 $4,614,482,957 -$16,968,421 $38.46 292
2023 Q3 120,563,421 $3,754,426,446 -$54,981,752 $31.14 288
2023 Q2 121,499,744 $4,598,737,045 -$3,653,035 $37.85 261
2023 Q1 121,931,496 $3,473,765,024 -$10,074,064 $28.49 242
2022 Q4 122,822,574 $3,487,604,325 +$90,925,034 $28.39 240
2022 Q3 119,544,356 $2,864,663,277 -$19,047,237 $23.96 231
2022 Q2 119,957,535 $2,795,356,016 +$29,914,228 $23.29 222
2022 Q1 118,347,245 $3,677,680,991 -$75,474,947 $31.06 251
2021 Q4 119,774,981 $4,805,176,555 -$56,143,888 $40.14 250
2021 Q3 120,906,570 $3,865,580,343 +$23,107,976 $31.97 233
2021 Q2 120,018,079 $4,182,704,891 +$145,736,015 $34.85 235
2021 Q1 116,798,083 $3,272,130,082 +$64,507,379 $28.02 244
2020 Q4 117,310,904 $2,355,549,838 -$4,588,714 $20.08 209
2020 Q3 118,156,520 $1,953,590,911 -$65,920,783 $16.54 200
2020 Q2 122,111,211 $1,964,579,607 +$15,675,159 $16.08 166
2020 Q1 121,630,114 $1,822,267,520 -$47,532,105 $15.00 177
2019 Q4 122,622,529 $2,930,708,085 -$105,434,959 $23.90 209
2019 Q3 128,166,385 $2,845,141,579 -$101,407,395 $22.20 181
2019 Q2 133,031,691 $2,560,783,616 +$10,748,718 $19.25 172
2019 Q1 134,863,214 $2,140,199,326 -$176,880 $15.87 185
2018 Q4 137,669,564 $1,707,685,976 -$36,635,286 $12.40 186
2018 Q3 134,711,489 $2,449,747,378 +$35,008,728 $18.18 183
2018 Q2 127,914,656 $3,357,486,937 +$111,600,754 $26.25 205
2018 Q1 123,106,749 $3,728,036,469 -$79,470,783 $30.28 227
2017 Q4 125,674,619 $3,951,225,773 -$40,361,565 $31.44 226
2017 Q3 125,815,271 $4,029,959,472 +$190,742,953 $32.03 215
2017 Q2 120,399,235 $3,476,823,376 +$297,277,122 $28.87 210
2017 Q1 113,738,409 $2,810,593,553 +$464,533,228 $24.71 216
2016 Q4 100,115,842 $2,382,476,529 +$482,612,601 $23.79 192
2016 Q3 81,051,475 $1,503,603,877 +$266,177,884 $18.55 159
2016 Q2 66,218,659 $1,355,190,572 +$325,543,736 $20.46 152
2016 Q1 50,456,139 $981,278,284 -$45,217,851 $19.45 137
2015 Q4 52,571,578 $1,053,539,717 +$97,053,788 $20.04 129
2015 Q3 49,062,227 $920,878,945 +$436,265,434 $18.77 119
2015 Q2 25,585,201 $652,409,479 +$44,637,865 $25.50 102
2015 Q1 24,428,092 $541,074,388 +$538,753,388 $22.15 82