{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-147049","form_type":"8-K","ticker":"MRK","cik":"0000310158","company_name":"Merck & Co., Inc.","filed_at":"2023-05-17T23:59:59+00:00","discovered_at":"2026-05-14T18:03:41.716829+00:00","generated_at":"2026-06-14T22:43:01.465994+00:00","sec_items":["8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Merck closes $6B multi-tranche debt offering across six maturities from 2028 to 2063","bullets":["$500M 4.050% Notes due 2028, $750M 4.300% Notes due 2030, $1.5B 4.500% Notes due 2033, $750M 4.900% Notes due 2044, $1.5B 5.000% Notes due 2053, $1B 5.150% Notes due 2063.","Total aggregate principal amount of $6.0B issued in underwritten public offering.","Offering closed on May 17, 2023.","Notes issued under indenture with U.S. Bank Trust; legal opinion and officers' certificates filed as exhibits."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-147049","json":"https://secwatch.observer/filing/0001193125-23-147049.json","markdown":"https://secwatch.observer/filing/0001193125-23-147049.md","text":"https://secwatch.observer/filing/0001193125-23-147049.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/310158/000119312523147049/0001193125-23-147049-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/310158/000119312523147049/d436124d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-14T22:43:01.465994+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}