{"schema_version":"secwatch.filing_event.v1","accession":"0001846253-26-000042","form_type":"8-K","ticker":"OABI","cik":"0001846253","company_name":"OmniAb, Inc.","filed_at":"2026-07-13T12:06:34+00:00","discovered_at":"2026-07-13T12:10:00.540120+00:00","generated_at":"2026-07-13T12:10:03.825654+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"OmniAb appoints Amechi Nwachuku as COO effective July 13, 2026","bullets":["Amechi Nwachuku appointed COO, effective July 13, 2026; most recently VP at Thermo Fisher Scientific.","Initial annual base salary of $445,000; eligible for annual target bonus of 45% of base salary.","Received $20,000 signing bonus; granted stock options to purchase 800,000 shares vesting over 4 years.","Options vest 12.5% at six-month anniversary, then monthly; exercise price equals closing price on grant date.","Eligible for severance under OmniAb Severance Plan and change-in-control agreement with enhanced benefits."],"urls":{"canonical":"https://secwatch.observer/filing/0001846253-26-000042","json":"https://secwatch.observer/filing/0001846253-26-000042.json","markdown":"https://secwatch.observer/filing/0001846253-26-000042.md","text":"https://secwatch.observer/filing/0001846253-26-000042.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1846253/000184625326000042/0001846253-26-000042-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1846253/000184625326000042/oabi-20260713.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-07-13T12:10:03.825654+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"}