Skip to main content
Knife River Corp logo

Knife River Corp — Investor Relations & Filings

Ticker · KNF ISIN · US4988941047 US Construction
Filings indexed 156 across all filing types
Latest filing 2026-05-21 Regulatory Filings
Country US United States of America
Listing US KNF

About Knife River Corp

https://www.kniferiver.com/

Knife River Corporation is a vertically integrated provider of construction materials and contracting services. The company is a major producer of aggregates, including stone, sand, and gravel, which are fundamental to infrastructure. Its primary product lines also include asphalt and ready-mix concrete for projects such as roads, driveways, and commercial buildings. In addition to material supply, Knife River offers a complete line of heavy-civil construction services, undertaking projects that range from road and bridge construction to site development for large facilities like airports and medical centers. The company's integrated model allows it to manage projects from material production to final construction.

Recent filings

Filing Released Lang Actions
8-K
Regulatory Filings
2026-05-21 English
8-K
Regulatory Filings
2026-05-18 English
8-K - Knife River Corp (0001955520) (Filer)
Regulatory Filings
2026-05-05 English
ARS - Knife River Corp (0001955520) (Filer)
Annual Report
2026-04-06 English
DEF 14A - Knife River Corp (0001955520) (Filer)
Proxy Solicitation & Information Statement
2026-04-06 English
10-K - KNIFE RIVER CORP (0001955520) (Filer)
Annual Report FY 2025
2026-02-20 English

Report missing filing

Can't find a specific document? Let us know and we'll add it within 24 hours.

We will notify you once the filing is added.
Report sent
Thank you. We will check the data and update it shortly.