Nuveen Municipal High Income Opportunity Fund SEC filings NMZ-RW

Nuveen Municipal High Income Opportunity Fund has 659 filings in SEC EDGAR's recent list, going back to Oct 17, 2003. The most recent current report (Form 8-K) was filed on Mar 6, 2024 (regulation fd disclosure).

Nuveen Municipal High Income Opportunity Fund SEC filings
Form Description Filed Period
N-23C-2 Notice of intention to redeem securities Nov 3, 2026 Nov 3, 2026
497AD Filing by certain investment companies Oct 28, 2026 —
424B5 Prospectus supplement Oct 23, 2026 —
497AD Form 497ad Oct 22, 2026 —
424B3 Prospectus Oct 2, 2026 —
NPORT-P Filing Sep 25, 2026 Jul 31, 2026
N-PX Filing Aug 17, 2026 Jun 30, 2026
40-17G Filing Jul 16, 2026 —
N-CSRS Nuveen municipal high income opportunity fund Jul 2, 2026 Apr 30, 2026
DEF 14A Proxy statement Jul 2, 2026 Aug 13, 2026
NPORT-P Filing Jun 24, 2026 Apr 30, 2026
POS EX Post-effective amendment Jun 11, 2026 —
N-23C-2 Notice of intention to redeem securities May 1, 2026 May 1, 2026
424B3 Prospectus Apr 24, 2026 —
NPORT-P Filing Mar 25, 2026 Jan 31, 2026
425 Form 425 Mar 19, 2026 —
425 Form 425 Mar 19, 2026 —
425 Filing under securities act rule 425 Mar 9, 2026 —
425 Filing under securities act rule 425 Mar 9, 2026 —
425 Filing under securities act rule 425 Mar 9, 2026 —
425 Filing under securities act rule 425 Mar 9, 2026 —
425 Filing under rule 425 Feb 27, 2026 —
425 Filing under securities act rule 425 of certain prospectuses and communications Feb 26, 2026 —
425 Filing under securities act rule 425 Feb 4, 2026 —
425 Filing under securities act rule 425 Feb 4, 2026 —
425 Filing under securities act rule 425 Feb 4, 2026 —
425 Filing under securities act rule 425 Feb 2, 2026 —
425 Filing under securities act rule 425 Feb 2, 2026 —
425 Filing under securities act rule 425 Feb 2, 2026 —
425 Filing under rule 425 Jan 23, 2026 —
425 Filing under rule 425 Jan 23, 2026 —
425 Filing under rule 425 Jan 23, 2026 —
425 Filing under securities act rule 425 Jan 16, 2026 —
425 Filing under securities act rule 425 Jan 16, 2026 —
425 Filing under securities act rule 425 Jan 16, 2026 —
N-CEN Filing Jan 14, 2026 Oct 31, 2025
N-CSR Nuveen municipal high income opportunity fund Jan 7, 2026 Oct 31, 2025
NPORT-P Filing Dec 30, 2025 Oct 31, 2025
425 Filing under securities act rule 425 Dec 29, 2025 —
425 Filing under securities act rule 425 Dec 29, 2025 —
425 Filing under securities act rule 425 Dec 29, 2025 —
425 Filing under securities act rule 425 Dec 29, 2025 —
424B3 Prospectus Dec 18, 2025 —
EFFECT Filing Dec 17, 2025 —
N-14 8C/A Amendment to form n-14 8c Dec 16, 2025 —
N-14 8C/A Initial registration on form n-14 Nov 18, 2025 —
N-23C-2 Notice of intention to redeem securities Oct 31, 2025 Oct 31, 2025
N-14 8C Initial registration statement on form n-14 Sep 29, 2025 —
NPORT-P Filing Sep 26, 2025 Jul 31, 2025
N-PX Filing Aug 22, 2025 Jun 30, 2025
40-17G Filing Jul 31, 2025 —
N-CSRS Nuveen municipal high income opportunity fund Jul 7, 2025 Apr 30, 2025
DEF 14A Proxy statement Jun 30, 2025 Aug 14, 2025
NPORT-P Filing Jun 26, 2025 Apr 30, 2025
424B3 Prospectus May 9, 2025 —
N-23C-2 Notice of intention to redeem securities Apr 28, 2025 Apr 28, 2025
NPORT-P Filing Mar 26, 2025 Jan 31, 2025
N-CEN Filing Jan 14, 2025 Oct 31, 2024
N-CSR Nuveen municipal high income opportunity fund Jan 6, 2025 Oct 31, 2024
NPORT-P Filing Dec 26, 2024 Oct 31, 2024
424B3 Prospectus Oct 31, 2024 —
N-23C-2 Notification of repurchase offer Oct 28, 2024 Oct 28, 2024
NPORT-P Filing Sep 25, 2024 Jul 31, 2024
40-17G Filing Sep 10, 2024 —
N-PX Filing Aug 29, 2024 Jun 30, 2024
N-CSRS Nuveen municipal high income opportunity fund Jul 2, 2024 Apr 30, 2024
DEF 14A Proxy statement Jun 27, 2024 Aug 8, 2024
NPORT-P Filing Jun 25, 2024 Apr 30, 2024
424B3 Prospectus May 20, 2024 —
N-PX/A Nuveen municipal high income opportunity fund May 17, 2024 Jun 30, 2023
424B2 Prospectus Apr 4, 2024 —
CORRESP Letter to the SEC Apr 1, 2024 —
NPORT-P Filing Mar 22, 2024 Jan 31, 2024
N-23C-2 Nuveen municipal high income opportunity fund Mar 20, 2024 Mar 20, 2024
N-2ASR Nuveen municipal high income opportunity fund Mar 8, 2024 —
8-K Current report
Regulation FD disclosure
Mar 6, 2024 Mar 6, 2024
N-CEN Filing Jan 16, 2024 Oct 31, 2023
N-CSR Nuveen municipal high income opportunity fund Jan 5, 2024 Oct 31, 2023
424B3 Prospectus Jan 2, 2024 —
NPORT-P Filing Dec 28, 2023 Oct 31, 2023
40-17G Filing Dec 1, 2023 —
424B3 Prospectus Oct 24, 2023 —
8-K Current report
Officer or director change
Oct 13, 2023 Oct 13, 2023
424B3 Prospectus Oct 13, 2023 —
N-23C-2 Nuveen municipal high income opportunity fund Oct 6, 2023 Oct 6, 2023
NPORT-P Filing Sep 27, 2023 Jul 31, 2023
N-PX Nuveen municipal high income opportunity fund Aug 21, 2023 Jun 30, 2023
424B3 Prospectus Jul 14, 2023 —
N-CSRS Nuveen municipal high income opportunity fund Jul 6, 2023 Apr 30, 2023
DEF 14A Proxy statement Jun 30, 2023 Aug 9, 2023
NPORT-P Filing Jun 28, 2023 Apr 30, 2023
424B3 Prospectus May 31, 2023 —
424B3 Prospectus Apr 12, 2023 —
NPORT-P Filing Mar 28, 2023 Jan 31, 2023
N-CEN Filing Jan 17, 2023 Oct 31, 2022
N-CSR Nuveen municipal high income opportunity fund Jan 9, 2023 —
NPORT-P Filing Dec 27, 2022 Oct 31, 2022
40-17G Filing Nov 2, 2022 —
424B3 Prospectus Sep 30, 2022 —
NPORT-P Filing Sep 28, 2022 Jul 31, 2022
N-PX Nuveen municipal high income opportunity fund Aug 22, 2022 Jun 30, 2022
N-CSRS Nmz Jul 7, 2022 Apr 30, 2022
NPORT-P Filing Jun 29, 2022 Apr 30, 2022
DEF 14A Proxy statement Jun 28, 2022 Aug 5, 2022
NPORT-P Filing Mar 30, 2022 Jan 31, 2022
8-K Current report
Regulation FD disclosure
Feb 25, 2022 Feb 24, 2022
N-CEN Filing Jan 14, 2022 Oct 31, 2021
N-CSR Nmz Jan 6, 2022 Oct 31, 2021
NPORT-P Filing Dec 28, 2021 Oct 31, 2021
POS EX Nuveen municipal high income opportunity fund Dec 17, 2021 —
424B5 Prospectus supplement Dec 17, 2021 —
424B3 Prospectus Nov 4, 2021 —
NPORT-P Filing Sep 27, 2021 Jul 31, 2021
40-17G Filing Sep 24, 2021 —
N-PX Nuveen municipal high income opportunity fund Aug 16, 2021 Jun 30, 2021
N-CSRS Nmz Jul 7, 2021 Apr 30, 2021
NPORT-P Filing Jun 28, 2021 Apr 30, 2021
DEF 14A Proxy statement Jun 25, 2021 Aug 4, 2021
424B3 Prospectus Jun 1, 2021 —
CORRESP Letter to the SEC Apr 9, 2021 —
NPORT-P Filing Mar 29, 2021 Jan 31, 2021
POS EX Nuveen municipal high income opportunity fund Mar 8, 2021 —
424B5 Prospectus supplement Mar 8, 2021 —
N-2ASR Nuveen municipal high income opportunity fund Mar 8, 2021 —
N-CEN Filing Jan 14, 2021 Oct 31, 2020
N-CSR Nmz Jan 7, 2021 Oct 31, 2020
NPORT-P Filing Dec 29, 2020 Oct 31, 2020
40-17G Filing Oct 13, 2020 —
8-K Current report
Regulation FD disclosure
Oct 6, 2020 Oct 5, 2020
NPORT-P Filing Sep 29, 2020 Jul 31, 2020
N-PX Nuveen municipal high income opportunity fund Aug 24, 2020 Jun 30, 2020
N-CSRS Nmz Jul 7, 2020 Apr 30, 2020
NPORT-P Filing Jun 29, 2020 Apr 30, 2020
DEF 14A Proxy statement Jun 26, 2020 Aug 5, 2020
NPORT-P Filing Mar 27, 2020 Jan 31, 2020
497 Nuveen municipal high income opportunity fund Mar 25, 2020 —
497 Nuveen municipal high income opportunity fund Mar 4, 2020 —
POS EX Nuveen municipal high income opportunity fund Mar 2, 2020 —
EFFECT Filing Feb 28, 2020 —
CORRESP Letter to the SEC Feb 27, 2020 —
N-2/A Nuveen municipal high income opportunity fund Feb 27, 2020 —
CORRESP Letter to the SEC Feb 20, 2020 —
N-2 Nuveen municipal high income opportunity fund Jan 17, 2020 —
N-CEN Filing Jan 14, 2020 Oct 31, 2019
N-CSR Nmz Jan 8, 2020 Oct 31, 2019
NPORT-P Filing Dec 27, 2019 Oct 31, 2019
40-17G Filing Oct 28, 2019 —
NPORT-EX Filing Sep 27, 2019 Jul 31, 2019
N-PX Nuveen municipal high income opportunity fund Aug 19, 2019 Jun 30, 2019
N-CSRS Nmz Jul 8, 2019 Apr 30, 2019
DEF 14A Proxy statement Jun 28, 2019 Aug 7, 2019
N-CEN/A Filing Jun 4, 2019 Oct 31, 2018
497 Nuveen municipal high income opportunity fund Apr 18, 2019 —
486BPOS Nuveen municipal high income opportunity fund Apr 11, 2019 —
N-Q Nuveen municipal high income opportunity fund Apr 1, 2019 Jan 31, 2019
N-CEN Filing Jan 14, 2019 Oct 31, 2018
N-CSR Nmz Jan 7, 2019 Oct 31, 2018
N-Q Nuveen municipal high income opportunity fund Sep 28, 2018 Jul 31, 2018
40-17G Filing Sep 5, 2018 —
N-PX Nuveen municipal high income opportunity fund Aug 20, 2018 Jun 30, 2018
N-CSRS Nmz Jul 9, 2018 Apr 30, 2018
CORRESP Letter to the SEC Jul 5, 2018 —
DEF 14A Proxy statement Jun 28, 2018 Aug 8, 2018
N-Q Nuveen municipal high income opportunity fund Mar 29, 2018 Jan 31, 2018
N-23C-2 Nuveen municipal high income opportunity fund Jan 31, 2018 Jan 29, 2018
N-CSR Nmz Jan 8, 2018 Oct 31, 2017
NSAR-B Filing Dec 29, 2017 Oct 31, 2017
N-Q Nuveen municipal high income opportunity fund Sep 29, 2017 Jul 31, 2017
497 Nuveen municipal high income opportunity fund Sep 22, 2017 —
EFFECT Filing Sep 18, 2017 —
CORRESP Letter to the SEC Sep 14, 2017 —
N-2/A Nuveen municipal high income opportunity fund Sep 14, 2017 —
CORRESP Letter to the SEC Sep 14, 2017 —
40-17G Filing Sep 8, 2017 —
N-PX Nuveen municipal high income opportunity fund Aug 29, 2017 Jun 30, 2017
N-2 Nuveen municipal high income opportunity fund Aug 22, 2017 —
N-CSRS Nmz Jul 6, 2017 Apr 30, 2017
NSAR-A Filing Jun 29, 2017 Apr 30, 2017
DEF 14A Proxy statement Jun 23, 2017 Aug 2, 2017
N-Q Nmz Mar 31, 2017 Jan 31, 2017
497J Nuveen municipal high income opportunity fund Feb 28, 2017 —
486BPOS Nuveen municipal high income opportunity fund Feb 10, 2017 —
N-CSR Nmz Jan 9, 2017 Oct 31, 2016
NSAR-B Filing Dec 30, 2016 Oct 31, 2016
497 Nuveen municipal high income opportunity fund Oct 11, 2016 —
EFFECT Filing Oct 6, 2016 —
CORRESP Letter to the SEC Oct 6, 2016 —
CORRESP Letter to the SEC Oct 6, 2016 —
N-2/A Nuveen municipal high income opportunity fund Oct 5, 2016 —
CORRESP Letter to the SEC Oct 4, 2016 —
40-APP/A Exemption application Sep 30, 2016 —
N-Q Nmz Sep 29, 2016 Jul 31, 2016
AW WD Nuveen municipal high income opportunity fund Sep 13, 2016 —
AW Nuveen municipal high income opportunity fund Sep 13, 2016 —
N-2/A Nuveen municipal high income opportunity fund Sep 12, 2016 —
AW Nuveen municipal high income opportunity fund Sep 12, 2016 —
40-17G Filing Aug 31, 2016 —
25 Nuveen municipal high income opportunity fund Aug 30, 2016 —
N-PX Nuveen municipal high income opportunity fund Aug 29, 2016 Jun 30, 2016
CERTNYS Auto-generated paper document Aug 23, 2016 —

Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.

Company profile

Listed as
NMZ (NYSE)
Incorporated in
MA
Headquarters
Chicago, IL
SEC CIK
1266585

Source: SEC EDGAR filings. This is company-reported data, not investment advice.