# Nuveen Municipal High Income Opportunity Fund: Form SC 13D/A, filed Apr 26, 2023

- Company: [Nuveen Municipal High Income Opportunity Fund](/companies/nmz.md) (CIK 1266585)
- Form: SC 13D/A
- Filed: 2023-04-26
- Accepted by EDGAR: Apr 26, 2023, 16:12 ET
- Period: not reported
- Accession: 0001193125-23-118529
- Inline XBRL: no
- Main document: https://www.sec.gov/Archives/edgar/data/1266585/000119312523118529/d505394dsc13da.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/1266585/000119312523118529/

## Sections

Sections are extracted only from 10-K and 10-Q reports. Read this filing’s documents on sec.gov. https://www.sec.gov/Archives/edgar/data/1266585/000119312523118529/d505394dsc13da.htm

Filed Apr 26, 2023.
Source: SEC EDGAR, the filing index for accession 0001193125-23-118529. Last ingested by Listed: Nov 3, 2026, 17:11 ET. No prices; not investment advice.