{"schema_version":"secwatch.filing_event.v1","accession":"0001466593-25-000097","form_type":"8-K","ticker":"OTTR","cik":"0001466593","company_name":"Otter Tail Corp","filed_at":"2025-06-06T23:59:59+00:00","discovered_at":"2026-05-14T18:02:48.379504+00:00","generated_at":"2026-05-19T18:18:53.418163+00:00","sec_items":["2.03"],"event_type":"debt","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Otter Tail Power subsidiary issues $50M 5.98% senior notes due 2055","bullets":["Otter Tail Power Company issued $50M 5.98% Series 2025B Senior Notes due June 5, 2055.","Proceeds will fund capital expenditures, refinance existing debt, and general corporate purposes.","Debt covenants cap Interest-bearing Debt at 65% and Priority Indebtedness at 20% of Total Capitalization.","Notes are privately placed; prepayment allowed with make-whole amount except near maturity."],"urls":{"canonical":"https://secwatch.observer/filing/0001466593-25-000097","json":"https://secwatch.observer/filing/0001466593-25-000097.json","markdown":"https://secwatch.observer/filing/0001466593-25-000097.md","text":"https://secwatch.observer/filing/0001466593-25-000097.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1466593/000146659325000097/0001466593-25-000097-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1466593/000146659325000097/ottr-20250605.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-19T18:18:53.418163+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":[{"claim_id":"e1f16b7745d37c98d6690f9234ed328b5fdcb92a","claim":"Otter Tail Corp incurred senior notes of $50,000,000 in aggregate principal amount of its 5.98% Series 2025B Senior Unsecured Notes at 5.98% maturing June 5, 2055.","evidence_excerpt":"On June 5, 2025, OTP issued the Series 2025B Notes pursuant to the Note Purchase Agreement for aggregate proceeds of $50,000,000.","evidence_source":"SEC 8-K Item 2.03/2.04","evidence_url":"https://www.sec.gov/Archives/edgar/data/1466593/000146659325000097/0001466593-25-000097-index.htm","confidence":0.9,"family_label":"Debt Financings","details":[{"label":"Instrument","value":"senior notes"},{"label":"Principal","value":"$50,000,000 in aggregate principal amount of its 5.98% Series 2025B Senior Unsecured Notes"},{"label":"Rate","value":"5.98%"},{"label":"Maturity","value":"June 5, 2055"},{"label":"Event","value":"incurrence"}],"fact_type":"debt_financing"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}