{"schema_version":"secwatch.filing_event.v1","accession":"0001466593-26-000061","form_type":"8-K","ticker":"OTTR","cik":"0001466593","company_name":"Otter Tail Corp","filed_at":"2026-06-05T13:52:28+00:00","discovered_at":"2026-06-05T13:53:00.322729+00:00","generated_at":"2026-06-05T13:53:06.096742+00:00","sec_items":["2.03"],"event_type":"debt","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Otter Tail Power issues $70M 6.04% senior notes due 2056","bullets":["$70M aggregate principal of Series 2026B Notes at 6.04% due June 4, 2056.","Proceeds to fund capital expenditures, refinance existing debt, and general corporate purposes.","Covenant limits: Interest-bearing Debt ≤65% of Total Capitalization; Priority Indebtedness ≤20%.","Notes are senior unsecured obligations of Otter Tail Power Company, a wholly owned subsidiary.","Issuance under Note Purchase Agreement previously reported on March 23, 2026."],"urls":{"canonical":"https://secwatch.observer/filing/0001466593-26-000061","json":"https://secwatch.observer/filing/0001466593-26-000061.json","markdown":"https://secwatch.observer/filing/0001466593-26-000061.md","text":"https://secwatch.observer/filing/0001466593-26-000061.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1466593/000146659326000061/0001466593-26-000061-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1466593/000146659326000061/ottr-20260604.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-05T13:53:06.096742+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":"c1af7c3f047121bc4733f2ac6a3e2a601f987895","claim":"Otter Tail Corp incurred senior notes of $70,000,000 with Purchasers named in Note Purchase Agreement at 6.04% maturing June 4, 2056.","evidence_excerpt":"On June 4, 2026, OTP issued the Series 2026B Notes pursuant to the Note Purchase Agreement for aggregate proceeds of $70,000,000.","evidence_source":"SEC 8-K Item 2.03/2.04","evidence_url":"https://www.sec.gov/Archives/edgar/data/1466593/000146659326000061/0001466593-26-000061-index.htm","confidence":0.98,"family_label":"Debt Financings","details":[{"label":"Instrument","value":"senior notes"},{"label":"Principal","value":"$70,000,000"},{"label":"Counterparty","value":"Purchasers named in Note Purchase Agreement"},{"label":"Rate","value":"6.04%"},{"label":"Maturity","value":"June 4, 2056"},{"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"}