FILINGS
| SUM 0001621563 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2021-04-01 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2021-04-01 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2021-04-01 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2021-04-01 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2021-04-01 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2021-04-01 | 3 | OWNERSHIP DOCUMENT | View Document |
| 2021-04-01 | 3 | OWNERSHIP DOCUMENT | View Document |
| 2021-04-01 | 3 | OWNERSHIP DOCUMENT | View Document |
| 2021-03-30 | 8-K | FORM 8-K | View Document |
| 2021-03-22 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2021-03-22 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2021-03-22 | 4 | OWNERSHIP DOCUMENT | View Document |
| 2021-03-18 | 8-K | FORM 8-K | View Document |
| 2021-03-16 | 8-K | 8-K | View Document |
| 2021-03-09 | PRE 14A | PRE 14A | View Document |
| 2021-03-02 | 4 | 4 | View Document |
| 2021-03-02 | 4 | 4 | View Document |
| 2021-03-02 | 4 | 4 | View Document |
| 2021-03-02 | 4 | 4 | View Document |
| 2021-03-02 | 4 | 4 | View Document |
| 2021-03-02 | 4 | 4 | View Document |
| 2021-03-02 | 4 | 4 | View Document |
| 2021-03-02 | 4 | 4 | View Document |
| 2021-02-24 | 10-K | 10-K | View Document |
| 2021-02-23 | 8-K | 8-K | View Document |
| 2021-02-16 | 5 | 5 | View Document |
| 2021-02-16 | SC 13G | View Document | |
| 2021-02-12 | SC 13G | SEC SCHEDULE 13G | View Document |
| 2021-02-11 | SC 13G/A | JANUS HENDERSON GROUP PLC OWNS 4.7% | View Document |
| 2021-02-10 | SC 13G/A | SCHEDULE 13G/A | View Document |
| 2021-02-08 | SC 13G/A | View Document | |
| 2021-02-01 | SC 13G/A | View Document | |
| 2020-12-22 | 4 | 4 | View Document |
| 2020-11-04 | 4 | 4 | View Document |
| 2020-10-28 | 10-Q | 10-Q | View Document |
| 2020-10-27 | 8-K | 8-K | View Document |
| 2020-09-08 | 4 | 4 | View Document |
| 2020-09-03 | 3 | 3 | View Document |
| 2020-08-11 | 8-K | FORM 8-K | View Document |
| 2020-08-03 | 4 | 4 | View Document |
| 2020-08-03 | 4 | 4 | View Document |
| 2020-08-03 | 4 | 4 | View Document |
| 2020-08-03 | 8-K | FORM 8-K | View Document |
| 2020-07-29 | 8-K | FORM 8-K | View Document |
| 2020-07-24 | 10-Q | 10-Q | View Document |
| 2020-07-22 | 4 | 4 | View Document |
| 2020-07-22 | 8-K | 8-K | View Document |
| 2020-07-22 | 8-K | FORM 8-K | View Document |
| 2020-06-10 | SC 13G/A | View Document | |
| 2020-05-28 | 4 | 4 | View Document |
| 2020-05-20 | 8-K | FORM 8-K | View Document |
| 2020-04-29 | 10-Q | 10-Q | View Document |
| 2020-04-29 | 8-K | 8-K | View Document |
| 2020-04-03 | DEFA14A | DEFA14A | View Document |
| 2020-04-03 | DEF 14A | DEF 14A | View Document |
| 2020-03-03 | 4 | 4 | View Document |
| 2020-03-03 | 4 | 4 | View Document |
| 2020-03-03 | 4 | 4 | View Document |
| 2020-03-03 | 4 | 4 | View Document |
| 2020-03-03 | 4 | 4 | View Document |
| 2020-03-03 | 4 | 4 | View Document |
| 2020-03-03 | 4 | 4 | View Document |
| 2020-03-03 | 4 | 4 | View Document |
| 2020-03-03 | 4 | 4 | View Document |
| 2020-03-03 | 4 | 4 | View Document |
| 2020-03-03 | 4 | 4 | View Document |
| 2020-03-03 | 4 | 4 | View Document |
| 2020-02-13 | SC 13G/A | JANUS HENDERSON GROUP PLC OWNS 7.2% OF SUMMIT | View Document |
| 2020-02-12 | SC 13G/A | SUMMIT MATERIALS, INC. | View Document |
| 2020-02-12 | SC 13G/A | SCHEDULE 13G/A | View Document |
| 2020-02-07 | SC 13G/A | 13G AMENDED ANNUAL FILING (SUM) | View Document |
| 2020-02-07 | SC 13G | View Document | |
| 2020-02-06 | SC 13G/A | View Document | |
| 2020-02-06 | SC 13G/A | View Document | |
| 2020-02-05 | 10-K | 10-K | View Document |
| 2020-02-05 | 8-K | 8-K | View Document |
| 2020-01-06 | S-3ASR | S-3ASR | View Document |
| 2019-12-10 | SC 13G/A | SUMMIT MATERIALS, INC. - 13G AMENDMENT | View Document |
| 2019-11-21 | 4 | 4 | View Document |
| 2019-11-18 | 4 | 4 | View Document |
| 2019-11-06 | 4 | 4 | View Document |
| 2019-11-05 | 4 | 4 | View Document |
| 2019-11-05 | 4 | 4 | View Document |
| 2019-11-05 | 4 | 4 | View Document |
| 2019-10-30 | 10-Q | 10-Q | View Document |
| 2019-10-30 | 8-K | 8-K | View Document |
| 2019-10-11 | SC 13G | SUMMIT MATERIALS, INC. - INITIAL 13G | View Document |
| 2019-09-24 | 8-K | FORM 8-K | View Document |
| 2019-08-13 | 4 | 4 | View Document |
| 2019-08-13 | 4 | 4 | View Document |
| 2019-08-09 | SC 13G/A | JANUS HENDERSON GROUP PLC OWNS 10.3% OF SUMMIT MATERIALS INC | View Document |
| 2019-08-01 | 10-Q | 10-Q | View Document |
| 2019-08-01 | 8-K | 8-K | View Document |
| 2019-06-17 | 3 | PRIMARY DOCUMENT | View Document |
| 2019-06-17 | 3 | PRIMARY DOCUMENT | View Document |
| 2019-06-17 | SC 13D | SUMMIT MATERIALS, INC. - INITIAL 13D | View Document |
| 2019-06-11 | 8-K | 8-K | View Document |
| 2019-05-22 | 8-K | 8-K | View Document |
| 2019-05-08 | 10-Q | 10-Q | View Document |
| 2019-05-08 | 8-K | 8-K | View Document |
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