{"filing":{"accession_number":"0001466593-26-000061","cik":"0001466593","ticker":"OTTR","company_name":"Otter Tail Corp","form":"8-K","filing_date":"2026-06-05","report_date":null,"primary_document":"ottr-20260604.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1466593/000146659326000061/ottr-20260604.htm"},"events":[{"id":6584,"run_id":5762,"accession_number":"0001466593-26-000061","anchor_item_number":"2.03","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.45,"summary":"The filing discloses the issuance of $70 million in Series 2026B Senior Unsecured Notes on June 4, 2026, as part of a $170 million private placement transaction entered into on March 19, 2026. While Item 2.03 is technically about creation of direct financial obligations, the substance here is a material debt financing that creates a significant new financial obligation. However, this is a routine debt issuance rather than a merger, acquisition, or change of control, making the classification ambiguous between ma_activity and other_material.","company_name":"Otter Tail Corp","ticker":"OTTR","filing_date":"2026-06-05","form":"8-K","submitted_at":null,"items":[{"id":4696,"accession_number":"0001466593-26-000061","item_number":"2.03","item_title":"Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.45,"reasoning":"The filing discloses the issuance of $70 million in Series 2026B Senior Unsecured Notes on June 4, 2026, as part of a $170 million private placement transaction entered into on March 19, 2026. While Item 2.03 is technically about creation of direct financial obligations, the substance here is a material debt financing that creates a significant new financial obligation. However, this is a routine debt issuance rather than a merger, acquisition, or change of control, making the classification ambiguous between ma_activity and other_material.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-05T16:52:05.363795+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":4696,"accession_number":"0001466593-26-000061","item_number":"2.03","item_title":"Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.45,"reasoning":"The filing discloses the issuance of $70 million in Series 2026B Senior Unsecured Notes on June 4, 2026, as part of a $170 million private placement transaction entered into on March 19, 2026. While Item 2.03 is technically about creation of direct financial obligations, the substance here is a material debt financing that creates a significant new financial obligation. However, this is a routine debt issuance rather than a merger, acquisition, or change of control, making the classification ambiguous between ma_activity and other_material.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-05T16:52:05.363795+00:00","company_name":"Otter Tail Corp","ticker":"OTTR","filing_date":"2026-06-05"}]}