Knife River Corp (NYSE: KNF) awards RSUs to VP & Chief Accounting Officer

Rhea-AI Filing Summary

Kadrmas Marney L. reported acquisition or exercise transactions in this Form 4 filing.

Knife River Corp executive Marney L. Kadrmas, VP & Chief Accounting Officer, received a grant of 1,199 restricted stock units of common stock. The award was recorded at a price of $0.0000 per unit.

According to the filing, these RSUs vest on December 31, 2028, provided Kadrmas remains employed by Knife River on that vesting date. Each restricted stock unit represents the contingent right to receive one share of Knife River common stock.

After this award, Kadrmas directly held 4,917 shares of common stock. The filing also reports an indirect holding of 2,460.0368 shares of common stock through a 401(k) plan by a trustee, with the number of plan shares able to fluctuate daily based on fund activity as of the most recent quarter end.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Kadrmas Marney L.

(Last) (First) (Middle)

1150 WEST CENTURY AVENUE

(Street)

BISMARCK ND 58503

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Knife River Corp [ KNF ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP & Chief Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/04/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/04/2026		A		1,199(1)	A	$0.0000	4,917	D
Common Stock - 401(k)(2)								2,460.0368	I	By Trustee

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

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

	/s/ Karl A. Liepitz, Power of Attorney	03/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Knife River Corp (KNF) report for Marney L. Kadrmas?

Knife River Corp reported that VP & Chief Accounting Officer Marney L. Kadrmas received 1,199 restricted stock units of common stock. These RSUs vest on December 31, 2028, if employment continues, and each unit represents a contingent right to one common share.

When do the restricted stock units granted to the Knife River (KNF) executive vest?

The 1,199 restricted stock units granted to Marney L. Kadrmas vest on December 31, 2028, if she remains employed by Knife River. At vesting, each RSU entitles the holder to receive one share of Knife River’s common stock, subject to that employment condition.

How many Knife River (KNF) shares does Marney L. Kadrmas hold after the RSU award?

Following the RSU grant, Marney L. Kadrmas directly held 4,917 shares of Knife River common stock. The filing also shows an additional 2,460.0368 shares held indirectly in a 401(k) plan by a trustee, with that plan balance able to fluctuate over time.

What does each restricted stock unit represent in the Knife River (KNF) Form 4 filing?

Each restricted stock unit granted to Marney L. Kadrmas represents a contingent right to receive one share of Knife River common stock. The units only convert into shares if vesting conditions, including continued employment through December 31, 2028, are satisfied according to the disclosure.

How are Knife River (KNF) 401(k) plan shares for Marney L. Kadrmas reported?

The filing reports 2,460.0368 Knife River common shares held indirectly for Marney L. Kadrmas through a 401(k) plan by a trustee. It notes that this share amount may fluctuate daily based on fund activity, and the figure is stated as of the most recent quarter end.