# EDGAR Filing Document

**Accession Number:** 0001955520
**File Stem:** 0001628280-26-023785
**Filing Date:** 2026-4
**Character Count:** 2455
**Document Hash:** 3d90fcf9e2595be9683f5fca28b1670d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-26-023785.hdr.sgml**: 20260406

**ACCESSION NUMBER**: 0001628280-26-023785

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260406

**DATE AS OF CHANGE**: 20260406

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Knife River Corp
- **CENTRAL INDEX KEY:** 0001955520
- **STANDARD INDUSTRIAL CLASSIFICATION:** MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 921008893
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41642
- **FILM NUMBER:** 26839601

**BUSINESS ADDRESS:**
- **STREET 1:** 1150 W. CENTURY AVE,
- **CITY:** BISMARCK
- **STATE:** ND
- **ZIP:** 58503
- **BUSINESS PHONE:** 701-530-1400

**MAIL ADDRESS:**
- **STREET 1:** 1150 WEST CENTURY AVENUE
- **CITY:** BISMARCK
- **STATE:** ND
- **ZIP:** 58503

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Knife River Holding Co
- **DATE OF NAME CHANGE:** 20221121

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549**

**SCHEDULE 14A INFORMATION**

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934

(Amendment No.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;)

Filed by the Registrant 🗷

Filed by a party other than the Registrant ◻

Check the appropriate box:

◻&nbsp;&nbsp;&nbsp;&nbsp;Preliminary Proxy Statement

◻&nbsp;&nbsp;&nbsp;&nbsp;Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

◻Definitive Proxy Statement

🗷&nbsp;&nbsp;&nbsp;&nbsp;Definitive Additional Materials

◻&nbsp;&nbsp;&nbsp;&nbsp;Soliciting Material under §240.14a-12

**Knife River Corporation**

(Name of Registrant as Specified In Its Charter)

____________________________________________________________

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

🗷&nbsp;&nbsp;&nbsp;&nbsp;No fee required

◻&nbsp;&nbsp;&nbsp;&nbsp;Fee paid previously with preliminary materials

◻&nbsp;&nbsp;&nbsp;&nbsp;Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

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