---
schema_version: "secwatch.filing_event.v1"
accession: "0001955520-25-000031"
form_type: "8-K"
ticker: "KNF"
cik: "0001955520"
company_name: "Knife River Corp"
filed_at: "2025-05-06T23:59:59+00:00"
generated_at: "2026-05-22T14:29:49.978147+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Knife River Q1 net loss widens to $68.7M; closes Strata acquisition; sees record FY2025

## Summary
- Q1 revenue $353.5M (+7% YoY); net loss $68.7M ($1.21/sh) vs $47.6M ($0.84/sh) a year ago.
- Adjusted EBITDA loss widened to $38.0M from $17.7M in Q1 2024.
- Acquisition of Strata Corporation closed; adds to aggregates and contracting capabilities.
- Management expects record full-year revenue, net income, and adjusted EBITDA in 2025.
- Updated full-year 2025 guidance provided (specific numbers not included in this excerpt).

## SEC filing metadata
- accession: 0001955520-25-000031
- form_type: 8-K
- ticker: KNF
- cik: 0001955520
- company_name: Knife River Corp
- filed_at: 2025-05-06T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1955520/000195552025000031/0001955520-25-000031-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1955520/000195552025000031/knf-20250506.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001955520-25-000031
- JSON: https://secwatch.observer/filing/0001955520-25-000031.json
- Plain text: https://secwatch.observer/filing/0001955520-25-000031.txt

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