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Apr 10, 2023 01:40PM Form SC 13G/A Summit Materials, Inc. Filed by: VANGUARD GROUP INC
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Feb 14, 2022 02:41PM Form SC 13G/A Summit Materials, Inc. Filed by: PRICE T ROWE ASSOCIATES INC /MD/
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Feb 11, 2021 03:03PM Form SC 13G/A Summit Materials, Inc. Filed by: JANUS HENDERSON GROUP PLC
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Feb 12, 2020 08:03AM Form SC 13G/A Summit Materials, Inc. Filed by: VANGUARD GROUP INC
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Aug 9, 2019 02:18PM Form SC 13G/A Summit Materials, Inc. Filed by: JANUS HENDERSON GROUP PLC
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Feb 1, 2019 02:58PM Form SC 13G/A Summit Materials, Inc. Filed by: JENNISON ASSOCIATES LLC
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Feb 13, 2018 10:06AM Form SC 13G Summit Materials, Inc. Filed by: FMR LLC
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