{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-21-231447","form_type":"8-K","ticker":"SYBX","cik":"0001527599","company_name":"SYNLOGIC, INC.","filed_at":"2021-07-30T23:59:59+00:00","discovered_at":"2026-05-14T18:04:18.448866+00:00","generated_at":"2026-06-30T00:21:33.647839+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Synlogic CMO Richard Riese resigns voluntarily on July 29, 2021","bullets":["Chief Medical Officer Richard Riese, M.D., Ph.D., resigned on July 29, 2021.","Resignation was voluntary and not due to any disagreement with Synlogic.","No successor or transition details were disclosed in the filing."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-21-231447","json":"https://secwatch.observer/filing/0001193125-21-231447.json","markdown":"https://secwatch.observer/filing/0001193125-21-231447.md","text":"https://secwatch.observer/filing/0001193125-21-231447.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1527599/000119312521231447/0001193125-21-231447-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1527599/000119312521231447/d72733d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-30T00:21:33.647839+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":"0c3a82e881","claim":"Richard Riese departed as Chief Medical Officer at SYNLOGIC, INC..","evidence_excerpt":"On July 29, 2021, Richard Riese, M.D., Ph.D., the Chief Medical Officer of Synlogic, Inc. (the \"Company\"), tendered his resignation.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1527599/000119312521231447/0001193125-21-231447-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"tendered his resignation"},{"label":"Role","value":"Chief Medical Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}