Summit Materials, Inc.

Historical 13F Holders

Symbol
SUM
CUSIP
86614U100
All holders as of
Q2 2026
Type
Equity
Class
CL A
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 86614U100 since 12/18/2024, largest first.

Filer % of Class Filed
Under 5%, checked the "5 percent or less" box, or amended by a later filing (2)
Price T Rowe Associates Inc /MD/ 13G/A 3.0% 2/14/2025
Event 12/31/2024
Argos SEM, LLC 13D/A
0% 2/10/2025
Event 2/10/2025

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q2 1 2.00 $105.00
2026 Q1 1 2.00 $105.00
2025 Q4 1 2.00 $105.00
2025 Q3 3 3.59 k $140 k
2025 Q2 2 190 $6.99 k
2025 Q1 8 12.2 k $563 k
2024 Q4 414 120 M $6.07 B
2024 Q3 347 123 M $4.81 B
2024 Q2 319 123 M $4.51 B
2024 Q1 327 123 M $5.49 B
2023 Q4 314 123 M $4.72 B
2023 Q3 310 121 M $3.76 B
2023 Q2 283 122 M $4.60 B
2023 Q1 256 122 M $3.49 B
2022 Q4 259 126 M $3.58 B
2022 Q3 256 123 M $2.94 B
2022 Q2 251 120 M $2.80 B
2022 Q1 283 120 M $3.72 B
2021 Q4 284 120 M $4.81 B
2021 Q3 255 121 M $3.88 B
2021 Q2 254 120 M $4.18 B
2021 Q1 270 117 M $3.27 B
2020 Q4 241 124 M $2.48 B
2020 Q3 233 118 M $1.95 B
2020 Q2 196 123 M $1.98 B
2020 Q1 198 125 M $1.87 B
2019 Q4 231 124 M $2.97 B
2019 Q3 202 128 M $2.85 B
2019 Q2 204 134 M $2.58 B
2019 Q1 217 137 M $2.16 B
2018 Q4 211 139 M $1.73 B
2018 Q3 227 138 M $2.52 B
2018 Q2 231 134 M $3.51 B
2018 Q1 243 124 M $3.76 B
2017 Q4 241 127 M $3.98 B
2017 Q3 230 127 M $4.06 B
2017 Q2 218 121 M $3.52 B
2017 Q1 231 115 M $2.84 B
2016 Q4 207 101 M $2.41 B
2016 Q3 178 81.1 M $1.50 B
2016 Q2 159 66.2 M $1.36 B
2016 Q1 143 50.5 M $982 M
2015 Q4 139 53.4 M $1.07 B
2015 Q3 128 51.9 M $973 M
2015 Q2 103 27.0 M $688 M
2015 Q1 82 24.4 M $541 M