{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-242590","form_type":"8-K","ticker":"PTY","cik":"0001190935","company_name":"PIMCO CORPORATE & INCOME OPPORTUNITY FUND","filed_at":"2023-09-26T23:59:59+00:00","discovered_at":"2026-05-14T18:03:33.332462+00:00","generated_at":"2026-06-10T08:32:14.101834+00:00","sec_items":["8.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"PIMCO Corporate & Income Opportunity Fund adds Giang Bui as co-portfolio manager effective Oct 2, 2023","bullets":["Giang Bui appointed co-portfolio manager alongside Alfred T. Murata and Mohit Mittal, effective October 2, 2023.","Bui has 24 years of investment experience; focuses on structured products and CLOs.","Fund's prospectus and SAI updated to reflect three jointly responsible portfolio managers.","No ownership of fund shares disclosed by any of the three portfolio managers."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-242590","json":"https://secwatch.observer/filing/0001193125-23-242590.json","markdown":"https://secwatch.observer/filing/0001193125-23-242590.md","text":"https://secwatch.observer/filing/0001193125-23-242590.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1190935/000119312523242590/0001193125-23-242590-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1190935/000119312523242590/d521504d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-10T08:32:14.101834+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"}