{"schema_version":"secwatch.filing_event.v1","accession":"0001125345-22-000113","form_type":"8-K","ticker":"MGNX","cik":"0001125345","company_name":"MACROGENICS INC","filed_at":"2022-12-21T23:59:59+00:00","discovered_at":"2026-05-14T18:03:49.680421+00:00","generated_at":"2026-06-21T00:41:00.793251+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"MacroGenics appoints Margaret Liu, M.D. to Board of Directors effective Jan 3, 2023","bullets":["Dr. Liu will serve as a Class II director until the 2024 Annual Meeting or until successor is elected.","She has been appointed to the Science & Technology Committee, effective January 3, 2023.","Initial grant of option to purchase 36,000 shares vesting monthly over 36 months from grant date.","Annual retainer and compensation per the Company's Director Compensation Program as disclosed in April 2022 proxy."],"urls":{"canonical":"https://secwatch.observer/filing/0001125345-22-000113","json":"https://secwatch.observer/filing/0001125345-22-000113.json","markdown":"https://secwatch.observer/filing/0001125345-22-000113.md","text":"https://secwatch.observer/filing/0001125345-22-000113.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1125345/000112534522000113/0001125345-22-000113-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1125345/000112534522000113/mgnx-20221219.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-21T00:41:00.793251+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":"3a9cf5056f","claim":"Margaret Liu was appointed as Director at MACROGENICS INC.","evidence_excerpt":"On December 19, 2022, the Board of Directors (the \"Board\") of MacroGenics, Inc. (the \"Company\") approved the appointment of Margaret Liu, M.D. to serve as a director on the Board, effective January 3, 2023","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1125345/000112534522000113/0001125345-22-000113-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"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"}