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NMZ        0001266585    
Filing Date Form Type Description Document
2024-03-08 N-2ASR NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2024-03-08 3 View Document
2024-03-06 8-K NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2024-01-16 N-CEN View Document
2024-01-11 3 View Document
2024-01-11 3 View Document
2024-01-11 3 View Document
2024-01-11 3 View Document
2024-01-05 N-CSR NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2024-01-02 424B3 424B3 View Document
2023-12-28 NPORT-P View Document
2023-12-01 40-17G 40-17G View Document
2023-10-26 4 View Document
2023-10-25 4 View Document
2023-10-24 424B3 NUVEEN CEFS : NVG, NMZ, NXP, NXC, NMI AND NMCO View Document
2023-10-13 8-K NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2023-10-13 424B3 NEA,NVG,NBB,NDMO,NMZ,NXP,NXC View Document
2023-10-06 N-23C-2 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2023-09-27 NPORT-P View Document
2023-08-21 N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2023-08-10 4 View Document
2023-07-14 424B3 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2023-07-06 N-CSRS NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2023-06-30 DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2023-06-28 NPORT-P View Document
2023-05-31 424B3 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2023-04-26 4 View Document
2023-04-26 SC 13D/A SC 13D/A View Document
2023-04-26 4 FORM 4 SUBMISSION View Document
2023-04-26 SC 13D/A SC 13D/A View Document
2023-04-12 SC 13D SC 13D View Document
2023-04-12 3 FORM 3 SUBMISSION View Document
2023-04-12 424B3 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2023-04-05 SC 13D/A SC 13D/A View Document
2023-04-05 4 FORM 4 SUBMISSION View Document
2023-03-28 NPORT-P View Document
2023-01-17 N-CEN View Document
2023-01-09 N-CSR NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2022-12-27 NPORT-P View Document
2022-11-28 4 View Document
2022-11-02 40-17G 40-17G View Document
2022-09-30 424B3 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2022-09-28 NPORT-P View Document
2022-08-22 N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2022-08-15 3 View Document
2022-07-07 N-CSRS NMZ View Document
2022-06-29 NPORT-P View Document
2022-06-28 DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2022-06-13 4 FORM 4 SUBMISSION View Document
2022-06-13 SC 13D/A SC 13D/A View Document
2022-06-08 3 View Document
2022-05-26 4 View Document
2022-04-21 3 View Document
2022-03-30 NPORT-P View Document
2022-02-25 8-K 8-K View Document
2022-01-14 N-CEN View Document
2022-01-06 N-CSR NMZ View Document
2022-01-04 SC 13D/A SC 13D/A View Document
2021-12-28 NPORT-P View Document
2021-12-17 POS EX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2021-12-17 424B5 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2021-11-04 424B3 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2021-09-27 NPORT-P View Document
2021-09-24 40-17G 40-17G View Document
2021-08-16 N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2021-07-08 3 View Document
2021-07-08 3 View Document
2021-07-07 N-CSRS NMZ View Document
2021-06-28 NPORT-P View Document
2021-06-25 DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2021-06-01 424B3 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2021-04-28 SC 13D SC 13D View Document
2021-04-28 3 FORM 3 SUBMISSION View Document
2021-04-21 SC 13D/A SC 13D/A View Document
2021-04-09 CORRESP View Document
2021-03-29 NPORT-P View Document
2021-03-08 POS EX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2021-03-08 424B5 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2021-03-08 N-2ASR NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2021-01-14 N-CEN View Document
2021-01-07 N-CSR NMZ View Document
2020-12-29 NPORT-P View Document
2020-11-25 3 View Document
2020-10-13 40-17G 40-17G View Document
2020-10-06 8-K 8-K View Document
2020-09-29 NPORT-P View Document
2020-08-24 N-PX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2020-07-07 N-CSRS NMZ View Document
2020-06-29 NPORT-P View Document
2020-06-26 DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2020-03-27 NPORT-P View Document
2020-03-25 497 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2020-03-06 3 View Document
2020-03-04 497 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2020-03-02 POS EX NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2020-02-28 EFFECT View Document
2020-02-27 CORRESP View Document
2020-02-27 N-2/A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document
2020-02-20 CORRESP View Document
2020-01-17 N-2 NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND View Document

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