{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-22-026977","form_type":"8-K","ticker":"ANNX","cik":"0001528115","company_name":"Annexon, Inc.","filed_at":"2022-02-03T23:59:59+00:00","discovered_at":"2026-05-14T18:04:06.866297+00:00","generated_at":"2026-06-27T11:40:38.189303+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.15,"calibrated_materiality_score":0.15,"confidence":"high","headline":"Annexon director Ricky Sun resigns from board effective Feb 1, 2022","bullets":["Ricky Sun, Ph.D., notified the board of his resignation effective February 1, 2022.","Resignation was not due to any disagreement with Annexon or its operations.","No replacement director has been announced at this time."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-22-026977","json":"https://secwatch.observer/filing/0001193125-22-026977.json","markdown":"https://secwatch.observer/filing/0001193125-22-026977.md","text":"https://secwatch.observer/filing/0001193125-22-026977.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1528115/000119312522026977/0001193125-22-026977-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1528115/000119312522026977/d303262d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-27T11:40:38.189303+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":"a0a2395939","claim":"Ricky Sun resigned as Director at Annexon, Inc..","evidence_excerpt":"On February 1, 2022, Ricky Sun, Ph.D., notified the Board of Directors (the “Board”) of Annexon, Inc. (the “Company”) of his decision to resign from the Board, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1528115/000119312522026977/0001193125-22-026977-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}