{"schema_version":"secwatch.filing_event.v1","accession":"0001558370-23-000744","form_type":"8-K","ticker":"MSB","cik":"0000065172","company_name":"MESABI TRUST","filed_at":"2023-02-01T23:59:59+00:00","discovered_at":"2026-05-14T18:03:47.772850+00:00","generated_at":"2026-06-20T04:18:32.228195+00:00","sec_items":["2.02","7.01"],"event_type":"other_material","sentiment":"negative","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"Mesabi Trust receives $0 royalty for Q4 2022; Northshore idling continues; shipments negative","bullets":["No royalty paid on Jan 30, 2023; base and bonus royalties both $0.","Negative survey adjustment of $789,080 lowered prior-quarter estimates.","Northshore credited Mesabi Trust with negative 54,026 tons shipped in Q4 2022 vs. 1,085,427 tons in Q4 2021.","Idling extended until at least April 2023 per Cleveland-Cliffs announcement.","Future royalties and distributions to unitholders remain uncertain due to continued idling."],"urls":{"canonical":"https://secwatch.observer/filing/0001558370-23-000744","json":"https://secwatch.observer/filing/0001558370-23-000744.json","markdown":"https://secwatch.observer/filing/0001558370-23-000744.md","text":"https://secwatch.observer/filing/0001558370-23-000744.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/65172/000155837023000744/0001558370-23-000744-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/65172/000155837023000744/msb-20230130x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-20T04:18:32.228195+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}