Janus Henderson Group plc 13D and 13G filings for Summit Materials, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2021-02-11 3:02 pm Sale | 2020-12-31 | 13G | Summit Materials, Inc. SUM | JANUS HENDERSON GROUP PLC JHG | 5,441,745 4.700% | -2,774,839 (-33.77%) | Filing |