{"schema_version":"secwatch.filing_event.v1","accession":"0001559053-21-000040","form_type":"8-K","ticker":"PRTA","cik":"0001559053","company_name":"PROTHENA CORP PUBLIC LTD CO","filed_at":"2021-10-01T23:59:59+00:00","discovered_at":"2026-05-14T18:04:13.029024+00:00","generated_at":"2026-06-28T23:54:43.686255+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Prothena appoints Tran Nguyen as Chief Strategy Officer, Brandon Smith as COO","bullets":["Tran B. Nguyen appointed to new role of Chief Strategy Officer, retains CFO title.","Brandon S. Smith appointed Chief Operating Officer, replacing Nguyen in that role.","Smith's base salary increased to $450,000; bonus target raised to 50% of Q4 2021 salary.","Smith granted option to purchase 25,000 ordinary shares, vesting over four years.","Changes effective immediately as of September 29, 2021."],"urls":{"canonical":"https://secwatch.observer/filing/0001559053-21-000040","json":"https://secwatch.observer/filing/0001559053-21-000040.json","markdown":"https://secwatch.observer/filing/0001559053-21-000040.md","text":"https://secwatch.observer/filing/0001559053-21-000040.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1559053/000155905321000040/0001559053-21-000040-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1559053/000155905321000040/prta-20210929.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T23:54:43.686255+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":"19daf82216","claim":"Tran B. Nguyen was appointed as Chief Strategy Officer at PROTHENA CORP PUBLIC LTD CO.","evidence_excerpt":"appointed Tran B. Nguyen to the additional and newly created role of the Company’s Chief Strategy Officer","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1559053/000155905321000040/0001559053-21-000040-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Strategy Officer"}],"fact_type":"executive_change"},{"claim_id":"65c13c2cf6","claim":"Brandon S. Smith was appointed as Chief Operating Officer at PROTHENA CORP PUBLIC LTD CO.","evidence_excerpt":"Brandon S. Smith to replace Mr. Nguyen as the Company’s Chief Operating Officer","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1559053/000155905321000040/0001559053-21-000040-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Operating Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}