{"filing":{"accession_number":"0001104659-26-089248","cik":"0000065172","ticker":"MSB","company_name":"MESABI TRUST","form":"8-K","filing_date":"2026-07-31","report_date":"2026-07-30","primary_document":"msb-20260730x8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/65172/000110465926089248/msb-20260730x8k.htm"},"events":[{"id":22423,"run_id":20283,"accession_number":"0001104659-26-089248","anchor_item_number":"2.02","event_type":"dividend_distribution","event_domain":"financial","is_material":true,"confidence":0.85,"summary":"Mesabi Trust received and reported quarterly royalty payments totaling $1,807,779 from Cleveland-Cliffs Inc. (via Northshore Mining Company) for the period ended June 30, 2026, representing distributions of cash generated from iron ore shipments on trust lands.","company_name":"MESABI TRUST","ticker":"MSB","filing_date":"2026-07-31","form":"8-K","submitted_at":null,"items":[{"id":22358,"accession_number":"0001104659-26-089248","item_number":"2.02","item_title":"Results of Operations and Financial Condition.","event_type":"dividend_distribution","event_domain":"financial","is_material":true,"confidence":0.85,"reasoning":"Mesabi Trust is a royalty trust that distributes royalty payments to unitholders. The disclosure of receipt of a quarterly royalty payment of $1,807,779 from Cleveland-Cliffs Inc. (via Northshore Mining Company) constitutes a material distribution to security holders. While the Item number is 2.02 (Results of Operations), the substance is a periodic royalty distribution that flows through to unitholders, which is the core economic event for a trust structure.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-01T00:16:32.408621+00:00","company_name":"","ticker":null,"filing_date":""},{"id":22359,"accession_number":"0001104659-26-089248","item_number":"7.01","item_title":"Regulation FD.","event_type":"dividend_distribution","event_domain":"financial","is_material":true,"confidence":0.85,"reasoning":"Mesabi Trust is a royalty trust that received and is reporting quarterly royalty payments totaling $1,807,779 from Cliffs for the period ended June 30, 2026. These royalty payments represent distributions of cash generated from iron ore shipments on Mesabi Trust lands. The disclosure of the royalty payment amount, composition (base and bonus royalty), and the underlying shipment volumes directly informs unitholders of the cash available for distribution, which is the core economic purpose of the trust structure. While framed as a \"Royalty Report,\" the substance is a distribution of trust income to unitholders.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-01T00:16:32.408621+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":22358,"accession_number":"0001104659-26-089248","item_number":"2.02","item_title":"Results of Operations and Financial Condition.","event_type":"dividend_distribution","event_domain":"financial","is_material":true,"confidence":0.85,"reasoning":"Mesabi Trust is a royalty trust that distributes royalty payments to unitholders. The disclosure of receipt of a quarterly royalty payment of $1,807,779 from Cleveland-Cliffs Inc. (via Northshore Mining Company) constitutes a material distribution to security holders. While the Item number is 2.02 (Results of Operations), the substance is a periodic royalty distribution that flows through to unitholders, which is the core economic event for a trust structure.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-01T00:16:32.408621+00:00","company_name":"MESABI TRUST","ticker":"MSB","filing_date":"2026-07-31"},{"id":22359,"accession_number":"0001104659-26-089248","item_number":"7.01","item_title":"Regulation FD.","event_type":"dividend_distribution","event_domain":"financial","is_material":true,"confidence":0.85,"reasoning":"Mesabi Trust is a royalty trust that received and is reporting quarterly royalty payments totaling $1,807,779 from Cliffs for the period ended June 30, 2026. These royalty payments represent distributions of cash generated from iron ore shipments on Mesabi Trust lands. The disclosure of the royalty payment amount, composition (base and bonus royalty), and the underlying shipment volumes directly informs unitholders of the cash available for distribution, which is the core economic purpose of the trust structure. While framed as a \"Royalty Report,\" the substance is a distribution of trust income to unitholders.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-01T00:16:32.408621+00:00","company_name":"MESABI TRUST","ticker":"MSB","filing_date":"2026-07-31"}]}