{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-186460","form_type":"8-K","ticker":"LFST","cik":"0001845257","company_name":"LifeStance Health Group, Inc.","filed_at":"2025-08-22T23:59:59+00:00","discovered_at":"2026-05-14T18:02:45.326398+00:00","generated_at":"2026-05-17T10:38:14.651902+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"LifeStance board member William Miller resigns; Sarah Personette appointed","bullets":["William Miller resigned from the Board and all committees effective Aug 19, 2025, with no disagreement.","Sarah Personette appointed as director effective Aug 20, 2025.","Personette receives initial award of 74,766 RSUs vesting over time and performance, subject to continued service."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-186460","json":"https://secwatch.observer/filing/0001193125-25-186460.json","markdown":"https://secwatch.observer/filing/0001193125-25-186460.md","text":"https://secwatch.observer/filing/0001193125-25-186460.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1845257/000119312525186460/0001193125-25-186460-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1845257/000119312525186460/d863673d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T10:38:14.651902+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"}