{"schema_version":"secwatch.filing_event.v1","accession":"0001877939-25-000025","form_type":"8-K","ticker":"CTM","cik":"0001877939","company_name":"Castellum, Inc.","filed_at":"2025-03-19T23:59:59+00:00","discovered_at":"2026-05-14T18:03:05.450802+00:00","generated_at":"2026-05-24T12:17:42.922644+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Castellum closes $4.5M public offering of common stock and warrants","bullets":["Sold 4,500,000 units at $1.00/unit, each consisting of one share and one warrant to buy one share at $1.08.","Warrants immediately exercisable, expire 60 days from issuance.","Gross proceeds ~$4.5M; net proceeds for working capital and general corporate purposes.","Maxim Group LLC acted as sole placement agent on best-efforts basis.","Securities registered under effective shelf S-3; final prospectus filed."],"urls":{"canonical":"https://secwatch.observer/filing/0001877939-25-000025","json":"https://secwatch.observer/filing/0001877939-25-000025.json","markdown":"https://secwatch.observer/filing/0001877939-25-000025.md","text":"https://secwatch.observer/filing/0001877939-25-000025.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1877939/000187793925000025/0001877939-25-000025-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1877939/000187793925000025/ctm-20250319.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-24T12:17:42.922644+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"}