{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-24-060911","form_type":"8-K","ticker":"CSQ","cik":"0001275214","company_name":"CALAMOS STRATEGIC TOTAL RETURN FUND","filed_at":"2024-05-14T23:59:59+00:00","discovered_at":"2026-05-14T18:03:17.679082+00:00","generated_at":"2026-06-02T00:21:39.913607+00:00","sec_items":["5.03","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.1,"calibrated_materiality_score":0.1,"confidence":"high","headline":"Calamos Strategic Total Return Fund amends by-laws to adopt exclusive forum provision","bullets":["Board of Trustees amended By-Laws effective May 14, 2024.","Amendment adds exclusive forum provision for shareholder disputes.","Full text of Amendment filed as Exhibit 3.2 and incorporated by reference."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-24-060911","json":"https://secwatch.observer/filing/0001104659-24-060911.json","markdown":"https://secwatch.observer/filing/0001104659-24-060911.md","text":"https://secwatch.observer/filing/0001104659-24-060911.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1275214/000110465924060911/0001104659-24-060911-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1275214/000110465924060911/tm2413798d4_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-02T00:21:39.913607+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":"727874100f94bed9863925433134e7323f677ae0","claim":"CALAMOS STRATEGIC TOTAL RETURN FUND: Amended by-laws to update provisions governing forum for adjudication of disputes (effective 2024-05-14).","evidence_excerpt":"Effective May 14, 2024, the Board of Trustees of Calamos Strategic Total Return Fund (the \"Trust\") amended the Trust’s By-Laws, as amended and restated through August 23, 2021 (the “By-Laws”). The aforementioned amendment (the “Amendment”) relates to provisions governing the forum for adjudication of disputes.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1275214/000110465924060911/0001104659-24-060911-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"bylaw amendment"},{"label":"Effective","value":"2024-05-14"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}