{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-21-109816","form_type":"8-K","ticker":"CGO","cik":"0001285650","company_name":"CALAMOS GLOBAL TOTAL RETURN FUND","filed_at":"2021-08-26T23:59:59+00:00","discovered_at":"2026-05-14T18:04:17.508386+00:00","generated_at":"2026-06-29T07:29:31.929743+00:00","sec_items":["5.03","9.01"],"event_type":"other","sentiment":"neutral","materiality_score":0.15,"calibrated_materiality_score":0.15,"confidence":"medium","headline":"Calamos Global Total Return Fund amends governing docs to clarify preferred securities provisions","bullets":["Board amended and restated Declaration of Trust and Bylaws effective August 23, 2021.","Amendments clarify certain provisions relating to preferred securities.","Amended documents filed as Exhibits 3.1 and 3.2 to the 8-K."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-21-109816","json":"https://secwatch.observer/filing/0001104659-21-109816.json","markdown":"https://secwatch.observer/filing/0001104659-21-109816.md","text":"https://secwatch.observer/filing/0001104659-21-109816.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1285650/000110465921109816/0001104659-21-109816-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1285650/000110465921109816/tm2122382d5_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T07:29:31.929743+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"}