{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-22-026861","form_type":"8-K","ticker":"UCLE","cik":"0001543623","company_name":"US NUCLEAR CORP.","filed_at":"2022-05-16T23:59:59+00:00","discovered_at":"2026-05-14T18:04:01.143518+00:00","generated_at":"2026-06-25T14:45:44.888159+00:00","sec_items":["1.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"US Nuclear closes $750K convertible note with Mast Hill Fund for working capital","bullets":["Principal amount $750K, convertible at $0.20/share; warrants to buy 1.5M shares at $0.75.","Net proceeds of $611K for operations, product upgrades, and sales/marketing expansion.","Issued 625,000 commitment shares to Mast Hill as additional consideration at closing.","Note issued under Section 4(a)(2) and Rule 506(b) exemption from registration."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-22-026861","json":"https://secwatch.observer/filing/0001213900-22-026861.json","markdown":"https://secwatch.observer/filing/0001213900-22-026861.md","text":"https://secwatch.observer/filing/0001213900-22-026861.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1543623/000121390022026861/0001213900-22-026861-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1543623/000121390022026861/ea160008-8k_usnuclear.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-25T14:45:44.888159+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"}