{"schema_version":"secwatch.filing_event.v1","accession":"0001829126-23-004262","form_type":"8-K","ticker":"MCAG","cik":"0001859035","company_name":"Mountain Crest Acquisition Corp. V","filed_at":"2023-06-20T23:59:59+00:00","discovered_at":"2026-05-14T18:03:41.321145+00:00","generated_at":"2026-06-13T21:50:29.901368+00:00","sec_items":["1.02"],"event_type":"other_material","sentiment":"negative","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"Mountain Crest Acquisition Corp. V announces termination of business combination with AUM Biosciences","bullets":["AUM Biosciences delivered termination notice on June 8, 2023, ending the Business Combination Agreement.","Mountain Crest's board cancelled the special meeting of stockholders scheduled for June 23, 2023.","Transfer agent will not process any share redemption requests submitted by stockholders.","Original deal was signed October 19, 2022, amended multiple times, with combined company to trade as AUMB.","SPAC now must seek an alternative target or face potential liquidation."],"urls":{"canonical":"https://secwatch.observer/filing/0001829126-23-004262","json":"https://secwatch.observer/filing/0001829126-23-004262.json","markdown":"https://secwatch.observer/filing/0001829126-23-004262.md","text":"https://secwatch.observer/filing/0001829126-23-004262.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1859035/000182912623004262/0001829126-23-004262-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1859035/000182912623004262/mountaincrest5_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-13T21:50:29.901368+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":"e71914f491812e6d23b23b385859e1f04762a56a","claim":"Mountain Crest Acquisition Corp. V terminated Business Combination Agreement with AUM Biosciences Pte. Ltd. valued at Termination of Business Combination Agreement among Mountain Crest Acquisition Corp. V and AUM Biosc (effective 2023-06-08).","evidence_excerpt":"On June 8, 2023, Mountain Crest received a termination notice (the “Notice”) from AUM. The Notice terminated the Business Combination Agreement as of June 8, 2023.","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1859035/000182912623004262/0001829126-23-004262-index.htm","confidence":0.95,"family_label":"Material Agreements","details":[{"label":"Action","value":"termination"},{"label":"Agreement","value":"merger"},{"label":"Counterparty","value":"AUM Biosciences Pte. Ltd."},{"label":"Value","value":"Termination of Business Combination Agreement among Mountain Crest Acquisition Corp. V and AUM Biosc"},{"label":"Effective","value":"2023-06-08"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}