Knife River Corporation (KNF)

Form 11-K - Annual report of employee stock purchase, savings and similar plans

Form 3 - Initial statement of beneficial ownership of securities

Form 8-K - Current report

Form 8-K - Current report

Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Form 8-K - Current report

Knife River Corporation Reports First Quarter 2026 Financial Results

Completed three aggregates-based acquisitions in the first quarter Record first quarter backlog of $1.2 billion Volume increases and cost...

Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors

Knife River Corporation Announces First Quarter 2026 Results Conference Call

Knife River Corporation (NYSE: KNF), an aggregates-based, vertically integrated construction materials and contracting services company, will...

Form ARS - Annual Report to Security Holders

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

Form DEF 14A - Other definitive proxy statements

Form SCHEDULE 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]

Knife River Acquires Aggregates and Ready-Mix Business in Montana

Knife River Corporation (NYSE: KNF) announced today that it has acquired the assets of Donaldson Brothers Ready Mix Inc., an aggregates-based...