{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-147005","form_type":"8-K","ticker":"ANNX","cik":"0001528115","company_name":"Annexon, Inc.","filed_at":"2025-06-25T23:59:59+00:00","discovered_at":"2026-05-14T18:02:48.627762+00:00","generated_at":"2026-05-18T19:18:41.465943+00:00","sec_items":["3.03","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Annexon extends 2022 common warrants to June 2026, cash exercise only at $5.806875","bullets":["Warrants exercisable for up to 6,877,622 shares of common stock.","Term extended by one year to June 30, 2026; cash exercise only at $5.806875/share.","Potential aggregate proceeds of up to $39.9 million if all warrants exercised.","Amendment entered with certain holders of the 2022 common stock purchase warrants."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-147005","json":"https://secwatch.observer/filing/0001193125-25-147005.json","markdown":"https://secwatch.observer/filing/0001193125-25-147005.md","text":"https://secwatch.observer/filing/0001193125-25-147005.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1528115/000119312525147005/0001193125-25-147005-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1528115/000119312525147005/d949875d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-18T19:18:41.465943+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"}