Knife River (NYSE: KNF) grants VP 2,950 RSUs vesting in 2028

Rhea-AI Filing Summary

Knife River Corp reported that VP & Chief Excellence Officer Glenn R. Pladsen acquired 2,950 restricted stock units of common stock on March 4, 2026. These RSUs vest on December 31, 2028 if he remains employed, with each unit representing one share. The filing also updates his indirect 401(k) plan holdings in Knife River stock.

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^*

Pladsen Glenn R.

(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 Excellence 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		2,950(1)	A	$0.0000	22,094	D
Common Stock - 401(k)(2)								3,485.5224	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 (KNF) report for Glenn R. Pladsen?

Knife River reported that Glenn R. Pladsen received 2,950 restricted stock units of common stock on March 4, 2026. These RSUs are a stock-based award that can convert into shares if vesting conditions are met.

When do Glenn R. Pladsen’s 2,950 Knife River (KNF) RSUs vest?

The 2,950 restricted stock units vest on December 31, 2028, provided Glenn R. Pladsen remains employed by Knife River through that date. Upon vesting, each RSU represents the right to receive one share of Knife River common stock.

What is the reported price per share for Glenn R. Pladsen’s Knife River (KNF) RSU grant?

The RSU grant to Glenn R. Pladsen is reported at a price of $0.0000 per share. This indicates a stock-based award rather than an open-market purchase, with value realized if and when the units vest into shares.

How many Knife River (KNF) shares does Glenn R. Pladsen hold directly after the RSU award?

After the reported RSU award, Glenn R. Pladsen is shown holding 22,094 shares of Knife River common stock directly. This figure reflects his direct ownership position following the March 4, 2026 transaction.

What does the Form 4 say about Glenn R. Pladsen’s Knife River (KNF) 401(k) holdings?

The filing lists 3,485.5224 shares held indirectly in a 401(k) plan by a trustee. A footnote explains that this 401(k) share amount is as of the most recent quarter end and may fluctuate daily with plan activity.

Are Glenn R. Pladsen’s Knife River (KNF) RSUs the same as common stock today?

No. The RSUs represent a contingent right to receive shares of Knife River common stock in the future. They only convert into actual shares if the vesting condition, including continued employment through December 31, 2028, is satisfied.