{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-054695","form_type":"8-K","ticker":"ANNX","cik":"0001528115","company_name":"Annexon, Inc.","filed_at":"2026-02-17T23:59:59+00:00","discovered_at":"2026-05-14T18:02:35.337259+00:00","generated_at":"2026-05-16T02:24:52.804573+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Chairman Thomas G. Wiggans to retire from Annexon board at 2026 annual meeting","bullets":["Mr. Wiggans notified the Board on Feb 12, 2026 of his intent to retire and not stand for reelection.","His term as director will end at the 2026 annual meeting; he remains Chairman and committee member until then.","Resignation is not the result of any disagreement with the Company on operations, policies, or strategy.","Mr. Wiggans served on the Board for eight years; management and Board expressed gratitude."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-054695","json":"https://secwatch.observer/filing/0001193125-26-054695.json","markdown":"https://secwatch.observer/filing/0001193125-26-054695.md","text":"https://secwatch.observer/filing/0001193125-26-054695.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1528115/000119312526054695/0001193125-26-054695-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1528115/000119312526054695/d21497d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T02:24:52.804573+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"}