secwatch.observer — SEC 8-K summary
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Issuer:     MDU RESOURCES GROUP INC (MDU)
CIK:        0000067716
Form:       8-K
Filed at:   2023-05-12T23:59:59+00:00
Accession:  0001140361-23-024278
Event type: other_material
Sentiment:  neutral
Materiality: 0.85
Item codes: 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

MDU Resources spin-off of Knife River corp; distribution ratio 1:4; effective May 31
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- Registration statement for Knife River spin-off declared effective by SEC.
- Distribution of ~90% of Knife River shares to MDU holders: 1 share KNF per 4 shares MDU.
- Record date May 22, distribution date May 31, 2023.
- KNF to trade on NYSE after spin-off; when-issued trading starts May 25 under 'KNF WI'.
- Investor day for Knife River scheduled for May 18, 2023.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/67716/000114036123024278/0001140361-23-024278-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/67716/000114036123024278/ny20008720x1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001140361-23-024278

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer