NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND — All Filings
635 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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144
25
3
3/A
4
40-17G
424B2
424B3
424B5
425
486BPOS
497
497J
8-A12B
8-K
AW
AW WD
CERTAMX
CERTNYS
CORRESP
DEF 14A
DEFA14A
EFFECT
N-14 8C
N-14 8C/A
N-2
N-2/A
N-23C-2
N-2ASR
N-2MEF
N-8A
N-CEN
N-CEN/A
N-CSR
N-CSRS
N-PX
N-PX/A
N-Q
NO ACT
NPORT-EX
NPORT-P
NSAR-A
NSAR-B
POS 8C
POS EX
PRE 14A
SC 13D
SC 13D/A
SC 13G
SC 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| NPORT-P | — | 0001266585-26-000006 | Mar 25, 2026 | Jan 31, 2026 |
| 4 | — | 0001225208-26-003390 | Mar 6, 2026 | Mar 5, 2026 |
| 3 | — | 0001225208-26-002352 | Feb 23, 2026 | Oct 16, 2025 |
| N-CEN | — | 0001193125-26-012738 | Jan 14, 2026 | Oct 31, 2025 |
| N-CSR | NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND | 0001193125-26-006359 | Jan 7, 2026 | Oct 31, 2025 |
| NPORT-P | — | 0001266585-25-000009 | Dec 30, 2025 | Oct 31, 2025 |
| 425 | FILING UNDER SECURITIES ACT RULE 425 | 0001999371-25-021258 | Dec 29, 2025 | — |
| 424B3 | PROSPECTUS | 0001999371-25-020575 | Dec 18, 2025 | — |
| EFFECT | — | 9999999995-25-003802 | Dec 17, 2025 | — |
| N-14 8C/A | AMENDMENT TO FORM N-14 8C | 0001999371-25-020432 | Dec 16, 2025 | — |
| N-14 8C/A | INITIAL REGISTRATION ON FORM N-14 | 0001999371-25-018025 | Nov 18, 2025 | — |
| 3 | — | 0001225208-25-008933 | Nov 5, 2025 | Sep 10, 2025 |
| N-23C-2 | NOTICE OF INTENTION TO REDEEM SECURITIES | 0001999371-25-016614 | Oct 31, 2025 | — |
| N-14 8C | INITIAL REGISTRATION STATEMENT ON FORM N-14 | 0001999371-25-014188 | Sep 29, 2025 | — |
| NPORT-P | — | 0001266585-25-000003 | Sep 26, 2025 | Jul 31, 2025 |
| N-PX | — | 0000930413-25-002651 | Aug 22, 2025 | Jun 30, 2025 |
| N-CSRS | NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND | 0001193125-25-156000 | Jul 7, 2025 | Apr 30, 2025 |
| DEF 14A | NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND | 0001193125-25-152769 | Jun 30, 2025 | Aug 14, 2025 |
| NPORT-P | — | 0001752724-25-157164 | Jun 26, 2025 | Apr 30, 2025 |
| 424B3 | PROSPECTUS | 0001999371-25-005731 | May 9, 2025 | — |
| N-23C-2 | NOTICE OF INTENTION TO REDEEM SECURITIES | 0001999371-25-004885 | Apr 28, 2025 | — |
| NPORT-P | — | 0001752724-25-067630 | Mar 26, 2025 | Jan 31, 2025 |
| 4 | — | 0001225208-25-003592 | Mar 24, 2025 | Mar 21, 2025 |
| N-CEN | — | 0001145549-25-001481 | Jan 14, 2025 | Oct 31, 2024 |
| N-CSR | NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND | 0001193125-25-002222 | Jan 6, 2025 | Oct 31, 2024 |
| NPORT-P | — | 0001752724-24-296073 | Dec 26, 2024 | Oct 31, 2024 |
| 3 | — | 0001225208-24-010377 | Dec 3, 2024 | Dec 2, 2024 |
| 424B3 | PROSPECTUS | 0001999371-24-014202 | Oct 31, 2024 | — |
| N-23C-2 | NOTIFICATION OF REPURCHASE OFFER | 0001999371-24-013998 | Oct 28, 2024 | — |
| NPORT-P | — | 0001752724-24-215990 | Sep 25, 2024 | Jul 31, 2024 |
| N-PX | — | 0000930413-24-002574 | Aug 29, 2024 | Jun 30, 2024 |
| N-CSRS | NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND | 0001193125-24-174134 | Jul 2, 2024 | Apr 30, 2024 |
| DEF 14A | NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND | 0001193125-24-170731 | Jun 27, 2024 | Aug 8, 2024 |
| NPORT-P | — | 0001752724-24-144225 | Jun 25, 2024 | Apr 30, 2024 |
| 424B3 | PROSPECTUS | 0001999371-24-006349 | May 20, 2024 | — |
| N-PX/A | NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND | 0001193125-24-141091 | May 17, 2024 | Jun 30, 2023 |
| 424B2 | NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND | 0001193125-24-087150 | Apr 4, 2024 | — |
| NPORT-P | — | 0001752724-24-063388 | Mar 22, 2024 | Jan 31, 2024 |
| N-23C-2 | NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND | 0001193125-24-072636 | Mar 20, 2024 | — |
| 3 | — | 0001225208-24-003988 | Mar 11, 2024 | Feb 28, 2024 |
| N-2ASR | NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND | 0001193125-24-063442 | Mar 8, 2024 | — |
| 3 | — | 0001225208-24-003913 | Mar 8, 2024 | Feb 28, 2024 |
| 8-K | NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND | 0001193125-24-060622 | Mar 6, 2024 | — |
| N-CEN | — | 0001145549-24-001953 | Jan 16, 2024 | Oct 31, 2023 |
| 3 | — | 0001225208-24-000779 | Jan 11, 2024 | Jan 1, 2024 |
| 3 | — | 0001225208-24-000777 | Jan 11, 2024 | Jan 1, 2024 |
| 3 | — | 0001225208-24-000776 | Jan 11, 2024 | Jan 1, 2024 |
| 3 | — | 0001225208-24-000775 | Jan 11, 2024 | Jan 1, 2024 |
| N-CSR | NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND | 0001193125-24-003424 | Jan 5, 2024 | Oct 31, 2023 |
| NPORT-P | — | 0001752724-23-294620 | Dec 28, 2023 | Oct 31, 2023 |