{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-072709","form_type":"8-K","ticker":null,"cik":"0001501756","company_name":"Adverum Biotechnologies, Inc.","filed_at":"2024-03-20T23:59:59+00:00","discovered_at":"2026-05-14T18:03:24.358932+00:00","generated_at":"2026-06-04T11:29:55.234697+00:00","sec_items":["3.03","5.03","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"Adverum Biotechnologies files 1-for-10 reverse stock split effective March 21, 2024","bullets":["Board approved 1-for-10 reverse split on March 8; Certificate of Amendment filed March 20, effective 12:01 a.m. ET March 21.","Every 10 shares of common stock convert to 1 share; par value per share unchanged.","Total authorized shares remain 300 million; no fractional shares issued (cash in lieu).","Restated Certificate of Incorporation filed (restates but does not further amend), effective 12:02 a.m. ET March 21."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-072709","json":"https://secwatch.observer/filing/0001193125-24-072709.json","markdown":"https://secwatch.observer/filing/0001193125-24-072709.md","text":"https://secwatch.observer/filing/0001193125-24-072709.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1501756/000119312524072709/0001193125-24-072709-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1501756/000119312524072709/d814195d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-04T11:29:55.234697+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":"3763a63da49453b06f99d490b6d86aa9e2cd5c9d","claim":"Adverum Biotechnologies, Inc.: Amended certificate of incorporation to effectuate a 1-for-10 reverse stock split (effective 2024-03-21).","evidence_excerpt":"On March 20, 2024, the Company filed the Certificate of Amendment with the Secretary of State of the State of Delaware to effect the Reverse Stock Split effective as of 12:01 a.m. Eastern time on March 21, 2024","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1501756/000119312524072709/0001193125-24-072709-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"charter amendment"},{"label":"Effective","value":"2024-03-21"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}