{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-21-109809","form_type":"8-K","ticker":"CHY","cik":"0001222719","company_name":"CALAMOS CONVERTIBLE & HIGH INCOME FUND","filed_at":"2021-08-26T23:59:59+00:00","discovered_at":"2026-05-14T18:04:17.420461+00:00","generated_at":"2026-06-29T07:29:08.499881+00:00","sec_items":["5.03","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"medium","headline":"Calamos Convertible and High Income Fund amends charter and bylaws to clarify preferred securities provisions","bullets":["Amended and restated Declaration of Trust and Bylaws effective August 23, 2021.","Changes clarify provisions relating to preferred securities.","No other material modifications disclosed in the filing.","Exhibits 3.1 and 3.2 attached to the 8-K."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-21-109809","json":"https://secwatch.observer/filing/0001104659-21-109809.json","markdown":"https://secwatch.observer/filing/0001104659-21-109809.md","text":"https://secwatch.observer/filing/0001104659-21-109809.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1222719/000110465921109809/0001104659-21-109809-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1222719/000110465921109809/tm2122382d3_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T07:29:08.499881+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"}