SEC ownership of Knife River Corp

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001955520.

Comparable stake leader

PRICE T ROWE ASSOCIATES INC /MD/

Disclosed value leader

BlackRock, Inc.

Comparable rows

50/50

Latest evidence

30 Jun 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
PRICE T ROWE ASSOCIATES INC /MD/
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
30 Jun 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001955520
Issuer location
Bismarck, ND

Ownership snapshot

Top shareholders of Knife River Corp (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
PRICE T ROWE ASSOCIATES I...
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
30 Jun 2026
13D/G 13F 3/4/5 Lead comparable stake: 7.9% 13D/G row: PRICE T ROWE ASSOCIATES INC /MD/ Showing 1-8 of 50 holder rows.

Quick read

PRICE T ROWE ASSOCIATES INC /MD/ leads the comparable SEC ownership view at 7.9%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens PRICE T ROWE ASSOCIATES INC /MD/'s linked filing trail.
Comparable ownership Top 5
PRICE T ROWE ASSOCIATES INC /MD/ 7.9%
VANGUARD CAPITAL MANAGEMENT LLC 5.2%
VANGUARD PORTFOLIO MANAGEMENT LLC 5%
Brian R. Gray 0.16%
Trevor J. Hastings 0.08%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
PRICE T ROWE ASSOCIATES INC /MD/
13D/G 13F
T. Rowe Price Associates, Inc. · Company
7.9%
$389,508,208
4,497,266 shares
+$61,123,189 31 Mar 2026
VANGUARD CAPITAL MANAGEMENT LLC
13D/G 13F
Vanguard Capital Management · Company
5.2%
$243,292,995
2,979,706 shares
$0 31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
13D/G 13F
Vanguard Portfolio Management · Company
5%
$240,082,694
2,870,086 shares
$0 30 Jun 2026
Brian R. Gray
3/4/5
President & CEO, Director
0.16%
$7,569,514
92,912 shares
06 Mar 2026
Trevor J. Hastings
3/4/5
Vice President & COO
0.08%
$3,930,454
48,244 shares
04 Mar 2026
Karl A. Liepitz
3/4/5
VP, Chief Legal Officer & Sec.
0.08%
$3,764,634
46,209 shares
04 Mar 2026
Nathan W. Ring
3/4/5
Vice President & CFO
0.06%
$2,682,994
32,932 shares
04 Mar 2026
Patricia L. Moss
3/4/5
Director
0.06%
$2,602,512
31,874 shares
20 May 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 07 Aug 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 20 reporting-owner rows connected to Knife River Corp. Open a relationship link for the CIK-to-CIK filing trail.

Rows
20
Largest Forms 3/4/5 holder
Thomas S. Everist
Net 12M change
$0
Latest report
30 Jun 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Thomas S. Everist Director $12,435,672 Mixed 15 Nov 2023
Brian R. Gray President & CEO, Director $7,569,514 Mixed 06 Mar 2026
Nancy K. Christenson VP of Administration $4,462,657 Mixed 27 Feb 2025
Trevor J. Hastings Vice President & COO $3,930,454 Mixed 04 Mar 2026
Karl A. Liepitz VP, Chief Legal Officer & Sec. $3,764,634 Mixed 04 Mar 2026
Karen B. Fagg Director $2,798,938 Mixed 30 Jun 2026
Nathan W. Ring Vice President & CFO $2,682,994 Mixed 04 Mar 2026
Patricia L. Moss Director $2,602,512 Mixed 20 May 2026
Glenn R. Pladsen VP & Chief Excellence Officer $2,083,963 Mixed 04 Mar 2026
German Carmona-Alvarez Director $736,891 Mixed 20 May 2026
William J. Sandbrook Director $631,562 Mixed 20 May 2026
Marney L. Kadrmas VP & Chief Accounting Officer $601,006 Mixed 04 Mar 2026
Sarah L. LaChapelle VP & Chief People Officer $527,582 Mixed 04 Mar 2026
Patricia Chiodo Director $453,402 Mixed 20 May 2026
Thomas W. Hill Director $448,748 Mixed 20 May 2026
Peggy S. Rebstock VP, CAO and Controller $155,787 Mixed 21 May 2026
John F. Quade VP of Business Development Mixed 31 May 2023
MDU RESOURCES GROUP INC 10%+ Owner Mixed 10 Nov 2023
Jason L. Vollmer Director Mixed 10 May 2023
David L. Goodin Chair of the Board, Director Mixed 10 May 2023

Recent insider transactions for Knife River Corp

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Karen B. Fagg KNF Phantom Stock Award 18.6% 197 1,259 30 Jun 2026 Direct
William J. Sandbrook KNF Common Stock Award 35.8% 2,040 7,735 20 May 2026 Direct
Patricia L. Moss KNF Common Stock Award 6.84% 2,040 31,874 20 May 2026 Direct
Thomas W. Hill KNF Common Stock Award 59% 2,040 5,496 20 May 2026 Direct
Karen B. Fagg KNF Common Stock Award 7.69% 2,380 33,317 20 May 2026 Direct
Patricia Chiodo KNF Common Stock Award 58.1% 2,040 5,553 20 May 2026 Direct
German Carmona-Alvarez KNF Common Stock Award 29.2% 2,040 9,025 20 May 2026 Direct
Karen B. Fagg KNF Phantom Stock Award 26.4% 222 1,062 31 Mar 2026 Direct
Brian R. Gray KNF Common Stock Award 32.8% 20,955 84,747 06 Mar 2026 Direct
Marney L. Kadrmas KNF Common Stock Award 32.2% 1,199 4,917 04 Mar 2026 Direct
Glenn R. Pladsen KNF Common Stock Award 15.4% 2,950 22,094 04 Mar 2026 Direct
Sarah L. Stevens KNF Common Stock Award 145.5% 2,713 4,578 04 Mar 2026 Direct
Karl A. Liepitz KNF Common Stock Award 11.6% 4,611 44,312 04 Mar 2026 Direct
Nathan W. Ring KNF Common Stock Award 20.6% 5,211 30,530 04 Mar 2026 Direct
Trevor J. Hastings KNF Common Stock Award 15.1% 6,130 46,760 04 Mar 2026 Direct
Glenn R. Pladsen KNF Common Stock Tax liability -13.4% -2,954 19,144 12 Feb 2026 Direct
Karl A. Liepitz KNF Common Stock Tax liability -17.9% -8,648 39,701 12 Feb 2026 Direct
Brian R. Gray KNF Common Stock Tax liability -31.7% -29,644 63,792 12 Feb 2026 Direct
Trevor J. Hastings KNF Common Stock Tax liability -15.6% -7,479 40,630 12 Feb 2026 Direct
Nathan W. Ring KNF Common Stock Tax liability -19.8% -6,258 25,319 12 Feb 2026 Direct
Marney L. Kadrmas KNF Common Stock Tax liability -24.9% -1,232 3,718 12 Feb 2026 Direct
* marks a reported price that did not pass the local price check.
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