{"schema_version":"secwatch.filing_event.v1","accession":"0000940394-23-000234","form_type":"8-K","ticker":"EOT","cik":"0001454741","company_name":"Eaton Vance National Municipal Opportunities Trust","filed_at":"2023-02-01T23:59:59+00:00","discovered_at":"2026-05-14T18:03:45.073562+00:00","generated_at":"2026-06-20T03:40:32.454277+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Eaton Vance closed-end funds exempt share purchases from Control Share By-Law after court ruling","bullets":["Board exempts all prior and new purchases that could be Control Share Acquisitions until further notice.","Massachusetts Superior Court ruled Control Share By-Law violates Section 18(i) of Investment Company Act.","Court granted summary judgment for funds on Saba's breach-of-fiduciary-duty claim, finding legitimate business reason.","Exemption applies to 22 Eaton Vance closed-end funds, including EOT, EOI, EFT, EVV, ETV, ETW, and others.","Litigation continues; board will monitor legal developments and may take further action."],"urls":{"canonical":"https://secwatch.observer/filing/0000940394-23-000234","json":"https://secwatch.observer/filing/0000940394-23-000234.json","markdown":"https://secwatch.observer/filing/0000940394-23-000234.md","text":"https://secwatch.observer/filing/0000940394-23-000234.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1454741/000094039423000234/0000940394-23-000234-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1454741/000094039423000234/eot8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-20T03:40:32.454277+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"}