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Knife River Corp. SEC filings

In the twelve months since 9 October 2025 Knife River Corp. filed 15 documents with the SEC of the kinds listed here: 7 current reports (8-K), about 5 regulation fd disclosure; 4 results of operations; 1 officer or director change; 1 shareholder vote; 1 material agreement; 3 quarterly reports (10-Q), 1 employee plan annual report (11-K), 1 annual report to shareholders (ARS), 1 additional proxy material (DEFA14A), 1 proxy statement (DEF 14A), 1 annual report (10-K). The latest, filed 23 September 2026: 8-K, regulation fd disclosure.

FiledFormWhat it was aboutPeriod or event dateFiling
23 September 20268-KRegulation FD disclosure23 September 2026EDGAR
4 August 202610-Qquarterly report30 June 2026EDGAR
4 August 20268-KResults of operations, Regulation FD disclosure4 August 2026EDGAR
17 June 202611-Kemployee plan annual report31 December 2025EDGAR
21 May 20268-KOfficer or director change, Shareholder vote20 May 2026EDGAR
18 May 20268-KMaterial agreement, New financial obligation15 May 2026EDGAR
5 May 202610-Qquarterly report31 March 2026EDGAR
5 May 20268-KResults of operations, Regulation FD disclosure5 May 2026EDGAR
6 April 2026ARSannual report to shareholders31 December 2025EDGAR
6 April 2026DEFA14Aadditional proxy materialEDGAR
6 April 2026DEF 14Aproxy statement20 May 2026EDGAR
20 February 202610-Kannual report31 December 2025EDGAR
17 February 20268-KResults of operations, Regulation FD disclosure17 February 2026EDGAR
5 November 202510-Qquarterly report30 September 2025EDGAR
4 November 20258-KResults of operations, Regulation FD disclosure4 November 2025EDGAR
An 8-K is what a company files within four business days of a material event; the SEC numbers the events, and the words here are the SEC's own headings, shortened.
Read moreForm 4, Form 144, 13F and Schedule 13D and 13G have their own pages. Prospectus supplements and correspondence are not listed.

Source

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