Massachusetts Financial Services Company 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 |
| 2024-11-12 11:54 am Purchase | 2024-11-12 | 13G | Summit Materials, Inc. SUM | Massachusetts Financial Services Company | 7,639,798 4.400% | 989,339 (+14.88%) | Filing |
| 2024-02-09 11:49 am Purchase | 2024-02-09 | 13G | Summit Materials, Inc. SUM | Massachusetts Financial Services Company | 6,650,459 5.600% | 6,650,459 (New Position) | Filing |