Knife River Corp — SCHEDULE 13G/A Filings
2 SCHEDULE 13G/A filings on record
This page lists all SCHEDULE 13G/A filings submitted to the SEC by Knife River Corp (KNF), sorted by most recent first. Each row links to the full filing on EdgarLookup. Knife River Corp has filed 2 SCHEDULE 13G/A documents with the SEC since 2022. To view all SEC filings by Knife River Corp, see the full filings list.
All
10-12B
10-12B/A
10-K
10-Q
11-K
3
4
4/A
424B3
424B4
8-K
ARS
CERT
CORRESP
DEF 14A
DEFA14A
DRS
DRS/A
DRSLTR
EFFECT
PRE 14A
S-1
S-8
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
SEC STAFF ACTION
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-001683 | Mar 27, 2026 | — |
| SCHEDULE 13G/A | — | 0000080255-25-000846 | Nov 14, 2025 | — |