NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
SEC Filing List

NMZ         CIK: 0001266585

Form Description Owner/Filer Filing Agent Date Actions
4Statement of changes in beneficial owner...Nuveen Municipal High Income Opportunity Fund08/06/2026
4Statement of changes in beneficial owner...Nuveen Municipal High Income Opportunity Fund08/04/2026
4Statement of changes in beneficial owner...Nuveen Municipal High Income Opportunity Fund07/28/2026
DEF 14ADefinitive proxy statementsNuveen Municipal High Income Opportunity Fund DONNELLEY FINANCIAL SOLUTIONS /FA/07/02/2026
N-CSRSCertified semi-annual shareholder report...Nuveen Municipal High Income Opportunity Fund DONNELLEY FINANCIAL SOLUTIONS /FA/07/02/2026
4Statement of changes in beneficial owner...Moschner Albin FCT's hCue /fa06/29/2026
NPORT-PMonthly Portfolio Investments Report on ...06/24/2026
POS EXPost-effective amendment filed solely to...Nuveen Municipal High Income Opportunity Fund QES, LLC /fa06/11/2026
N-23C-2Notice by closed-end investment companie...Nuveen Municipal High Income Opportunity Fund QES, LLC /fa05/01/2026
4Statement of changes in beneficial owner...DONNELLEY FINANCIAL SOLUTIONS /FA/04/29/2026
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