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 -$5,762,183,791 $50.60 7
2024 Q4 115,402,295 $5,838,906,277 -$261,208,332 $50.60 387
2024 Q3 121,048,572 $4,733,842,929 -$24,772,339 $39.03 329
2024 Q2 121,977,846 $4,464,555,600 +$53,486,395 $36.61 301
2024 Q1 119,362,357 $5,317,936,445 +$32,248,323 $44.57 302
2023 Q4 696,712 $26,795,543 +$1,312,707 $38.46 1
2023 Q3 118,938,031 $3,703,809,881 -$57,668,514 $31.14 281
2023 Q2 120,060,974 $4,544,279,669 -$37,937,187 $37.85 257
2023 Q1 121,810,246 $3,470,310,886 -$7,718,580 $28.49 240
2022 Q4 121,494,213 $3,449,893,381 +$86,169,920 $28.39 236
2022 Q3 113,905,454 $2,729,553,817 -$25,875,481 $23.96 223
2022 Q2 119,768,891 $2,789,299,061 +$30,023,952 $23.29 217
2022 Q1 118,238,271 $3,674,295,825 -$70,988,730 $31.06 247
2021 Q4 118,565,806 $4,756,641,401 -$58,129,433 $40.14 248
2021 Q3 120,837,166 $3,863,362,176 +$26,979,490 $31.97 233
2021 Q2 119,962,110 $4,180,753,921 +$143,790,863 $34.85 235
2021 Q1 116,799,687 $3,272,159,478 +$65,682,905 $28.02 243
2020 Q4 117,258,989 $2,354,507,822 -$5,958,498 $20.08 205
2020 Q3 117,583,749 $1,944,117,603 -$60,924,439 $16.54 197
2020 Q2 122,058,345 $1,963,730,607 +$15,779,875 $16.08 164
2020 Q1 119,388,587 $1,788,644,520 -$38,933,248 $15.00 173
2019 Q4 115,304,727 $2,755,813,085 -$132,140,694 $23.90 205
2019 Q3 127,785,101 $2,836,678,579 -$105,043,619 $22.20 178
2019 Q2 132,906,157 $2,558,392,616 +$29,276,501 $19.25 167
2019 Q1 132,938,211 $2,109,652,326 -$3,818,286 $15.87 178
2018 Q4 133,387,375 $1,654,583,976 +$40,403,902 $12.40 178
2018 Q3 133,761,662 $2,432,478,378 +$41,653,284 $18.18 180
2018 Q2 126,416,767 $3,318,167,937 +$136,177,245 $26.25 202
2018 Q1 123,106,749 $3,728,036,469 -$79,491,972 $30.28 228
2017 Q4 125,673,449 $3,951,188,773 -$40,373,597 $31.44 225
2017 Q3 125,814,488 $4,029,934,472 +$191,902,893 $32.03 214
2017 Q2 120,178,894 $3,470,462,376 +$283,546,490 $28.87 208
2017 Q1 113,735,541 $2,810,522,553 +$464,475,902 $24.71 215
2016 Q4 100,115,595 $2,382,470,529 +$483,054,997 $23.79 191
2016 Q3 81,051,475 $1,503,603,877 +$266,119,098 $18.55 159
2016 Q2 66,185,760 $1,354,516,572 +$327,883,505 $20.46 151
2016 Q1 48,793,327 $948,936,284 -$49,307,181 $19.45 137
2015 Q4 52,564,012 $1,053,388,717 +$97,668,789 $20.04 128
2015 Q3 49,053,984 $920,730,945 +$432,897,940 $18.77 121
2015 Q2 25,468,467 $649,432,479 +$41,660,946 $25.50 101
2015 Q1 24,428,092 $541,074,388 +$538,753,236 $22.15 82