Nathan W. Ring - 12 Feb 2026 Form 4 Insider Report for Knife River Corp (KNF)

Role: Vice President & CFO
Signature: /s/ Karl A. Liepitz, Power of Attorney
Issuer symbol: KNF
Transactions as of: 12 Feb 2026
Net transactions value: -$511,529
Form type: 4
Filing time: 17 Feb 2026, 16:23:29 UTC
Previous filing: 03 Mar 2025
Next filing: 05 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Ring Nathan W	Vice President & CFO	1150 WEST CENTURY AVENUE, BISMARCK	/s/ Karl A. Liepitz, Power of Attorney	17 Feb 2026	0001596125

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	KNF	Common Stock	Tax liability	$157,104	-1,922	-6.1%	$81.74	29,655	12 Feb 2026	Direct	F1
transaction	KNF	Common Stock	Tax liability	$354,425	-4,336	-15%	$81.74	25,319	12 Feb 2026	Direct	F1
holding	KNF	Common Stock - 401(k)						2,402	12 Feb 2026	By Trustee	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares withheld by issuer to cover tax withholding obligations upon vesting of a restricted stock unit award.
F2	As of the most recent quarter end, the number of shares may fluctuate daily depending on plan activity in the fund.