secwatch.observer — SEC 8-K summary
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Issuer:     Summit Materials, Inc. (—)
CIK:        0001621563
Form:       8-K
Filed at:   2024-11-15T23:59:59+00:00
Accession:  0001104659-24-119720
Event type: other
Sentiment:  neutral
Materiality: 0.10
Item codes: 5.03, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Summit Materials changes fiscal year to calendar year-end from 52-53 week fiscal year
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- Board unanimously approved adoption of Fourth Amended and Restated Bylaws on November 13, 2024, effective immediately.
- Fiscal year changed from a 52-53 week period ending on the Saturday closest to December 31 to a calendar year ending December 31.
- Amended Bylaws filed as Exhibit 3.1; marked version showing changes filed as Exhibit 3.2.
- No other changes to governance or shareholder rights were made.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1621563/000110465924119720/0001104659-24-119720-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1621563/000110465924119720/tm2428384d1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-24-119720

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer