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Knife River Corp (KNF)

Knife River Corp (KNF) Insider Trading

Directors, officers and holders of more than 10% of KNF report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 45 most recent of 45 transactions on file: 0 with code P, 0 with code S and 45 with other codes.

DateInsiderCodeShares
Sep 30, 2026Fagg Karen BA Award330
Jun 30, 2026Fagg Karen BA Award197
May 20, 2026MOSS PATRICIA LA Award2,040
May 20, 2026Fagg Karen BA Award2,380
May 20, 2026Carmona-Alvarez GermanA Award2,040
May 20, 2026Chiodo PatriciaA Award2,040
May 20, 2026Hill Thomas W.A Award2,040
May 20, 2026SANDBROOK WILLIAM JA Award2,040
Mar 31, 2026Fagg Karen BA Award222
Mar 6, 2026Gray Brian R.A Award20,955
Mar 4, 2026Kadrmas Marney L.A Award1,199
Mar 4, 2026LaChapelle Sarah L.A Award2,713
Mar 4, 2026Liepitz Karl AA Award4,611
Mar 4, 2026Ring Nathan WA Award5,211
Mar 4, 2026Hastings Trevor JA Award6,130
Mar 4, 2026Pladsen Glenn R.A Award2,950
Feb 12, 2026Gray Brian R.F Tax Payment19,572
Feb 12, 2026Pladsen Glenn R.F Tax Payment1,385
Feb 12, 2026Pladsen Glenn R.F Tax Payment1,569
Feb 12, 2026Liepitz Karl AF Tax Payment8,648
Feb 12, 2026Hastings Trevor JF Tax Payment2,880
Feb 12, 2026Hastings Trevor JF Tax Payment4,599
Feb 12, 2026Ring Nathan WF Tax Payment1,922
Feb 12, 2026Ring Nathan WF Tax Payment4,336
Feb 12, 2026Kadrmas Marney L.F Tax Payment1,232
Feb 12, 2026Gray Brian R.F Tax Payment10,072
May 22, 2025MOSS PATRICIA LA Award1,551
May 22, 2025Hill Thomas W.A Award1,551
May 22, 2025Fagg Karen BA Award1,810
May 22, 2025Chiodo PatriciaA Award1,551
May 22, 2025SANDBROOK WILLIAM JA Award1,551
May 22, 2025Carmona-Alvarez GermanA Award1,551
Feb 28, 2025Gray Brian R.A Award12,599
Feb 27, 2025Kadrmas Marney L.A Award709
Feb 27, 2025Christenson Nancy K.F Tax Payment1,583
Feb 27, 2025Pladsen Glenn R.F Tax Payment1,292
Feb 27, 2025Hastings Trevor JF Tax Payment4,016
Feb 27, 2025Hastings Trevor JA Award3,114
Feb 27, 2025Liepitz Karl AA Award2,770
Feb 27, 2025Liepitz Karl AF Tax Payment7,083
Feb 27, 2025Ring Nathan WA Award3,114
Feb 27, 2025Ring Nathan WF Tax Payment1,698
Feb 27, 2025Pladsen Glenn R.A Award1,786
Dec 31, 2024Fagg Karen BA Award174
Sep 30, 2024Fagg Karen BA Award198

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.