---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-037338"
form_type: "8-K"
ticker: "KNF"
cik: "0001955520"
company_name: "Knife River Corp"
filed_at: "2026-05-21T20:37:49+00:00"
generated_at: "2026-05-21T20:53:04.538266+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.25
confidence: "high"
source: SEC EDGAR
---

# Knife River appoints new CAO; shareholders reelect directors and approve compensation

## Summary
- Peggy S. Rebstock promoted to VP, Chief Accounting Officer and Controller effective May 21, 2026; annual salary $320,000.
- Rebstock's target cash incentive rises to 50%; 2027 target equity award expected at 65% of base salary, pending Compensation Committee approval.
- Marney L. Kadrmas transitions from VP/CAO to Senior VP of Financial Strategy as of May 21, 2026.
- At annual meeting, directors Karen B. Fagg (44.9M for) and Brian R. Gray (47.1M for) were elected; say-on-pay and auditor ratification passed.

## SEC filing metadata
- accession: 0001628280-26-037338
- form_type: 8-K
- ticker: KNF
- cik: 0001955520
- company_name: Knife River Corp
- filed_at: 2026-05-21T20:37:49+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.25
- confidence: high
- sec_items: 5.02, 5.07, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1955520/000162828026037338/0001628280-26-037338-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1955520/000162828026037338/knf-20260520.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-037338
- JSON: https://secwatch.observer/filing/0001628280-26-037338.json
- Plain text: https://secwatch.observer/filing/0001628280-26-037338.txt

## Key facts
- Executive change
  Marney L. Kadrmas was named as Senior Vice President of Financial Strategy at Knife River Corp.
  - Action: named
  - Role: Senior Vice President of Financial Strategy
  source text: On May 20, 2026, Marney L. Kadrmas was named Senior Vice President of Financial Strategy, instead of her former title as Vice President and Chief Accounting Officer, effective as of May 21, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1955520/000162828026037338/0001628280-26-037338-index.htm
- Executive change
  Peggy S. Rebstock was appointed as Vice President, Chief Accounting Officer and Controller at Knife River Corp.
  - Action: appointed
  - Role: Vice President, Chief Accounting Officer and Controller
  source text: On May 20, 2026, the board of directors (the “Board”) of Knife River Corporation (the “Company”) appointed Peggy S. Rebstock, the Company’s current Vice President of Financial Planning and Analysis, to serve as the Vice President, Chief Accounting Officer and Controller of the Company, effective May 21, 2026.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1955520/000162828026037338/0001628280-26-037338-index.htm
- Shareholder Votes
  Knife River Corp shareholders approved Advisory Vote to Approve the Compensation Paid to the Company's Named Executive Officers at the 2026-05-20 meeting.
  - Proposal: say on pay
  - Outcome: passed
  - Meeting: 2026-05-20
  source text: 2. Shares For Shares Against Abstentions Broker Non-Votes Advisory Vote to Approve the Compensation Paid to the Company's Named Executive Officers 45,322,044 1,777,385 103,741 4,455,896
  evidence_url: https://www.sec.gov/Archives/edgar/data/1955520/000162828026037338/0001628280-26-037338-index.htm
- Shareholder Votes
  Knife River Corp shareholders approved Ratification of the Appointment of Deloitte & Touche LLP as the Company’s Independent Registered Public Accounting Firm for 2026 at the 2026-05-20 meeting.
  - Proposal: auditor ratification
  - Outcome: passed
  - Meeting: 2026-05-20
  source text: 3. Shares For Shares Against Abstentions Ratification of the Appointment of Deloitte & Touche LLP as the Company’s Independent Registered Public Accounting Firm for 2026 49,836,805 1,769,228 53,033
  evidence_url: https://www.sec.gov/Archives/edgar/data/1955520/000162828026037338/0001628280-26-037338-index.htm
- Shareholder Votes
  Knife River Corp shareholders approved Election of Two Class III Directors at the 2026-05-20 meeting.
  - Proposal: director election
  - Outcome: passed
  - Meeting: 2026-05-20
  source text: 1. Shares For Shares Against Abstentions Broker Non-Votes Proposal to Elect Two Class III Directors: Karen B. Fagg 44,894,087 2,265,537 43,546 4,455,896 Brian R. Gray 47,091,577 60,554 51,039 4,455,896
  evidence_url: https://www.sec.gov/Archives/edgar/data/1955520/000162828026037338/0001628280-26-037338-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.