KNF SCHEDULE 13G/A: SEC filing

An institutional filer

Filed with the SEC on · accession 0000080255-26-000610

KNF filed a SCHEDULE 13G/A (schedule 13g/a) with the SEC on Oct 7, 2026. An institutional filer submitted an amended Schedule 13G disclosing a passive ownership position in Knife River Corp (KNF). The stock moved -5.1% by the first close after the filing.

Summary of the filing

An institutional filer submitted an amended Schedule 13G disclosing a passive ownership position in Knife River Corp (KNF). The filing indicates a change to a previously reported stake, though specific ownership details are not included in the provided text.

Key details

IssuerKnife River Corp

How KNF stock reacted

Close before

$53.23

Oct 6, 2026

First close after

-5.05%

$50.54

5 trading days

-8.00%

$48.97

Since filing

+5.96%

$56.40

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Frequently asked questions

What did KNF file with the SEC on Oct 7, 2026?

KNF filed a SCHEDULE 13G/A (SEC filing). An institutional filer submitted an amended Schedule 13G disclosing a passive ownership position in Knife River Corp (KNF). The filing indicates a change to a previously reported stake, though specific ownership details are not included in the provided text.

How do I read a SCHEDULE 13G/A?

A report the company filed with the SEC (the US market regulator). Start with the summary, then the key amounts and names. Compare it with the company’s earlier filings.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A SCHEDULE 13G/A (schedule 13g/a): A report the company filed with the SEC (the US market regulator).

How did KNF stock react to this filing?

KNF closed at $53.23 before the filing and $50.54 on Oct 7, 2026 (-5.05%). Five trading days later: $48.97 (-8.00%).

Other KNF SEC filings

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