{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-283191","form_type":"8-K","ticker":"ANNX","cik":"0001528115","company_name":"Annexon, Inc.","filed_at":"2025-11-14T23:59:59+00:00","discovered_at":"2026-05-14T18:02:39.644507+00:00","generated_at":"2026-05-16T19:50:44.843538+00:00","sec_items":["1.01","8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Annexon closes $86.25M public offering of common stock and pre-funded warrants","bullets":["Priced 25,096,153 shares at $2.60/share and 3,750,000 pre-funded warrants at $2.599 each.","Underwriters' option for 4,326,922 additional shares exercised in full; total gross $86.25M.","Net proceeds of approximately $80.4M after underwriting discounts and expenses.","Offering closed on November 14, 2025; pre-funded warrants exercisable at $0.001 per share.","Goldman Sachs, TD Cowen, and Wells Fargo acted as joint book-running managers."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-283191","json":"https://secwatch.observer/filing/0001193125-25-283191.json","markdown":"https://secwatch.observer/filing/0001193125-25-283191.md","text":"https://secwatch.observer/filing/0001193125-25-283191.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1528115/000119312525283191/0001193125-25-283191-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1528115/000119312525283191/d874883d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T19:50:44.843538+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"}