{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-22-006366","form_type":"8-K","ticker":"ERAS","cik":"0001761918","company_name":"Erasca, Inc.","filed_at":"2022-04-27T23:59:59+00:00","discovered_at":"2026-05-14T18:04:02.213209+00:00","generated_at":"2026-06-26T04:11:20.013011+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Erasca appoints Jean Liu to Board of Directors, increases board size to nine","bullets":["Board expanded to nine members, appointed Jean Liu as Class III director until 2024 annual meeting.","Liu is Chief Legal Officer and Corporate Secretary of Seagen Inc., a global biotechnology company.","Received options to purchase 80,000 shares of common stock, vesting monthly over three years.","Liu appointed to Audit Committee, joining Casdin, Chen, and Hambleton.","Board determined Liu is independent under Nasdaq listing standards."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-22-006366","json":"https://secwatch.observer/filing/0000950170-22-006366.json","markdown":"https://secwatch.observer/filing/0000950170-22-006366.md","text":"https://secwatch.observer/filing/0000950170-22-006366.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1761918/000095017022006366/0000950170-22-006366-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1761918/000095017022006366/eras-20220425.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-26T04:11:20.013011+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":"a725439310","claim":"Jean Liu was appointed as Director at Erasca, Inc..","evidence_excerpt":"the Board appointed Jean Liu, J.D., to fill such newly created directorship.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1761918/000095017022006366/0000950170-22-006366-index.htm","confidence":1.0,"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"}