{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-249567","form_type":"8-K","ticker":null,"cik":"0001610950","company_name":"Syneos Health, Inc.","filed_at":"2023-10-03T23:59:59+00:00","discovered_at":"2026-05-14T18:03:29.774978+00:00","generated_at":"2026-06-10T05:31:46.739011+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Syneos Health appoints Colin Shannon as CEO; Keefe remains on exec team and board","bullets":["Colin Shannon appointed CEO effective October 3, 2023, succeeding Michelle Keefe.","Keefe remains a key member of the Executive Leadership Team and on the Board.","Shannon previously served as Chairman and CEO of PRA Health Sciences, leading its IPO and sale to ICON.","Keefe served as CEO for 18 months, leading the Company through its going private transaction."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-249567","json":"https://secwatch.observer/filing/0001193125-23-249567.json","markdown":"https://secwatch.observer/filing/0001193125-23-249567.md","text":"https://secwatch.observer/filing/0001193125-23-249567.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1610950/000119312523249567/0001193125-23-249567-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1610950/000119312523249567/d462278d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-10T05:31:46.739011+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":"277de32531","claim":"Colin Shannon was appointed as Chief Executive Officer at Syneos Health, Inc..","evidence_excerpt":"Colin Shannon has been appointed Chief Executive Officer of the Company, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1610950/000119312523249567/0001193125-23-249567-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Executive Officer"}],"fact_type":"executive_change"},{"claim_id":"a7e1cb1d72","claim":"Michelle Keefe changed role as Chief Executive Officer at Syneos Health, Inc..","evidence_excerpt":"Mr. Shannon succeeds Michelle Keefe, who will continue her tenure with the Company as a key member of the Executive Leadership Team.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1610950/000119312523249567/0001193125-23-249567-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"succeeded"},{"label":"Role","value":"Chief Executive Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}