---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-24-019631"
form_type: "8-K"
ticker: null
cik: "0001621563"
company_name: "Summit Materials, Inc."
filed_at: "2024-05-01T23:59:59+00:00"
generated_at: "2026-06-03T02:53:07.599649+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Summit Materials Q1: net loss $67.3M on $773M revenue; raises FY guidance & synergy target

## Summary
- Net revenue $773.2M (up 89.9%), net loss $67.3M (Basic EPS -$0.40); Adjusted Diluted EPS -$0.12.
- Adjusted EBITDA $121.2M (up 194.2%) amid 'better than anticipated' quarter and Argos USA integration.
- Raises 2024 synergy target to at least $40M; Adjusted EBITDA guidance raised to ~$970M-$1,010M.
- Full-year capex guidance $430M-$470M.
- CEO cites pricing momentum, cost headwinds decelerating, and demand accommodating margin expansion.

## SEC filing metadata
- accession: 0001628280-24-019631
- form_type: 8-K
- cik: 0001621563
- company_name: Summit Materials, Inc.
- filed_at: 2024-05-01T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1621563/000162828024019631/0001628280-24-019631-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1621563/000162828024019631/sum-20240501.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-24-019631
- JSON: https://secwatch.observer/filing/0001628280-24-019631.json
- Plain text: https://secwatch.observer/filing/0001628280-24-019631.txt

## Key facts
- Earnings Releases
  Summit Materials, Inc. reported the fiscal quarter ended March 30, 2024 results: revenue $ 773,229, net income $ (67,270), EPS $ (0.40). Guidance raised.
  - Period: the fiscal quarter ended March 30, 2024
  - Revenue: $ 773,229
  - Net income: $ (67,270)
  - EPS: $ (0.40)
  - Guidance: raised
  - Result: reported results
  source text: the quarter ended April 1, 2023 unless noted otherwise. Three months ended ($ in thousands, except per share amounts) March 30, 2024 April 1, 2023 % Chg vs. PY Net revenue $ 773,229 $ 407,270 89.9 % Operating loss (44,853) (15,475) (189.8) % Net loss (67,270) (31,212) (115.5) % Basic EPS $ (0.40) $ (0.26) (53.8) % Adjusted Cash Gross Profit 181,004 81,351
  evidence_url: https://www.sec.gov/Archives/edgar/data/1621563/000162828024019631/0001628280-24-019631-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.