{"schema_version":"secwatch.filing_event.v1","accession":"0001168165-26-000005","form_type":"8-K","ticker":null,"cik":"0001168165","company_name":"CONSTELLATION ENERGY GENERATION LLC","filed_at":"2026-01-08T23:59:59+00:00","discovered_at":"2026-05-14T18:02:34.633980+00:00","generated_at":"2026-05-16T11:10:25.614294+00:00","sec_items":["1.01","2.03","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Constellation Energy Generation issues $2.75B in senior notes to retire Calpine debt","bullets":["Issued $300M Floating Rate Senior Notes (SOFR+60bps) due 2028, $900M 3.900% notes due 2028.","Also issued $750M 4.400% senior notes due 2031 and $800M 5.875% senior notes due 2066.","Proceeds used to retire outstanding Calpine LLC indebtedness after completing Calpine acquisition.","Interest on floating rate notes payable quarterly; fixed-rate notes pay semi-annually starting July 2026.","2031 and 2066 notes are optionally redeemable; floating and 2028 notes non-redeemable before maturity."],"urls":{"canonical":"https://secwatch.observer/filing/0001168165-26-000005","json":"https://secwatch.observer/filing/0001168165-26-000005.json","markdown":"https://secwatch.observer/filing/0001168165-26-000005.md","text":"https://secwatch.observer/filing/0001168165-26-000005.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1168165/000116816526000005/0001168165-26-000005-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1168165/000116816526000005/ceg-20260108.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T11:10:25.614294+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":"316159bb9f4e287e7de8a505bd290be6ccc55f05","claim":"CONSTELLATION ENERGY GENERATION LLC incurred senior notes of $300,000,000 with U.S. Bank Trust Company, National Association at Compounded SOFR plus 60 basis points maturing January 8, 2028.","evidence_excerpt":"Business and Operations Item 1.01. Entry into a Material Definitive Agreement On January 8, 2026, Constellation Energy Generation, LLC (Constellation) issued and sold $300,000,000 in aggregate principal amount of Floating Rate Senior Notes due 2028 (the Floating Rate Senior Notes), $900,000,000 in aggregate principal amount of 3.900% Senior Notes due 2028","evidence_source":"SEC 8-K Item 2.03/2.04","evidence_url":"https://www.sec.gov/Archives/edgar/data/1168165/000116816526000005/0001168165-26-000005-index.htm","confidence":0.9,"family_label":"Debt Financings","details":[{"label":"Instrument","value":"senior notes"},{"label":"Principal","value":"$300,000,000"},{"label":"Counterparty","value":"U.S. Bank Trust Company, National Association"},{"label":"Rate","value":"Compounded SOFR plus 60 basis points"},{"label":"Maturity","value":"January 8, 2028"},{"label":"Event","value":"incurrence"}]},{"claim_id":"35f933ffbda086c7e85efc9a7e95115a39f20b4b","claim":"CONSTELLATION ENERGY GENERATION LLC entered into Senior Notes valued at $300,000,000 in aggregate principal amount of Floating Rate Senior Notes due 2028, $900,000,000 in a (effective 2026-01-08).","evidence_excerpt":"On January 8, 2026, Constellation Energy Generation, LLC (Constellation) issued and sold $300,000,000 in aggregate principal amount of Floating Rate Senior Notes due 2028 (the Floating Rate Senior Notes), $900,000,000 in aggregate principal amount of 3.900% Senior Notes due 2028 (the 2028 Senior Notes), $750,000,000 in aggregate principal amount of 4.400% Senior Notes due 2031 (the 2031 Senior Notes) and $800,000,000 in aggregate principal amount of 5.875% Senior Notes due 2066 (the 2066 Senior Notes, and collectively with the Floating Rate Senior Notes, the 2028 Senior Notes and the 2031 Senior Notes, the Senior Notes).","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1168165/000116816526000005/0001168165-26-000005-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Agreement","value":"notes offering"},{"label":"Value","value":"$300,000,000 in aggregate principal amount of Floating Rate Senior Notes due 2028, $900,000,000 in a"},{"label":"Effective","value":"2026-01-08"}]}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}