Sarah L. LaChapelle - 04 Mar 2026 Form 4 Insider Report for Knife River Corp (KNF)

Reporting relationship: VP & Chief People Officer
Issuer ticker: KNF
Reported as of: 04 Mar 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 05 Mar 2026, 16:48:48 UTC
Prior SEC filing: 25 Apr 2025
Source filing: View source filing
Reporting owner signature: /s/ Karl A. Liepitz, Power of Attorney

Key filing fact

Sarah L. LaChapelle filed Form 4 for Knife River Corp (KNF) on 05 Mar 2026.

Key facts

This page summarizes Sarah L. LaChapelle's Form 4 filing for Knife River Corp (KNF).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 05 Mar 2026, 16:48.

Change

Previous filing in this sequence was filed on 25 Apr 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002064646 Primary reporting owner

LaChapelle Sarah L.

Relationship: VP & Chief People Officer
Address: 1150 WEST CENTURY AVENUE, BISMARCK
Signature: /s/ Karl A. Liepitz, Power of Attorney
Signature date: 05 Mar 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

KNF transaction

Common Stock

Award

Transaction value
Shares: +2,713
Change %: +145%
Price: $0.000000^*
Shares after: 4,578
Date: 04 Mar 2026
Ownership: Direct
Footnotes: F1

KNF holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 8
Date: 04 Mar 2026
Ownership: By Trustee
Footnotes: F2

KNF holding

Common Stock - 401(k)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 1,898
Date: 04 Mar 2026
Ownership: By Trustee
Footnotes: F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote F1

Represents restricted stock units (RSUs) that vest on December 31, 2028, provided that the reporting person remains employed by the issuer as of the vesting date. Each RSU represents the contingent right to receive one share of the issuer's common stock.

Footnote F2

The reporting person is a trustee and beneficiary of the Paul and Jan Eggleston Trust. The reporting person disclaims beneficial ownership of these securities except to the extent of her proportionate pecuniary interest therein.

Footnote F3

As of the most recent quarter end, the number of shares may fluctuate daily depending on plan activity in the fund.