Nuveen Municipal High Income Opportunity Fund
NMZNYSECIK 1266585Other
Reports and events: 28 filings
Newest first, by EDGAR acceptance time (Eastern). Each filing’s page lists its documents on sec.gov and, for 10-K and 10-Q reports, the extracted sections.
What the forms are: 10-K, 10-Q, 8-K, Form 4, DEF 14A, Schedule 13D, Schedule 13G, amendments, accession numbers.
| Filed | Form | What it is | Accession number |
|---|---|---|---|
| 2026-07-0201:19 ET | DEF 14A | Proxy statementPeriod 2026-08-13 | 0001193125-26-293122 |
| 2025-06-3020:29 ET | DEF 14A | Proxy statementPeriod 2025-08-14 | 0001193125-25-152769 |
| 2024-06-2721:27 ET | DEF 14A | Proxy statementPeriod 2024-08-08 | 0001193125-24-170731 |
| 2024-03-0620:15 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-24-060622 |
| 2023-10-1311:37 ET | 8-K | 5.02 Departure or appointment of officers or directors | 0001193125-23-255708 |
| 2023-06-3020:55 ET | DEF 14A | Proxy statementPeriod 2023-08-09 | 0001193125-23-180540 |
| 2023-04-2620:12 ET | SC 13D/A | Ownership report, active investor, amended | 0001193125-23-118529 |
| 2023-04-0520:31 ET | SC 13D/A | Ownership report, active investor, amended | 0001193125-23-092341 |
| 2022-06-2820:33 ET | DEF 14A | Proxy statementPeriod 2022-08-05 | 0001193125-22-183966 |
| 2022-06-1319:50 ET | SC 13D/A | Ownership report, active investor, amended | 0001193125-22-172872 |
| 2022-02-2512:13 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-22-053235 |
| 2021-06-2521:22 ET | DEF 14A | Proxy statementPeriod 2021-08-04 | 0001193125-21-200611 |
| 2021-04-2817:34 ET | SC 13D | Ownership report, active investor | 0001193125-21-136356 |
| 2020-10-0600:09 ET | 8-K | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001193125-20-264158 |
| 2020-06-2619:07 ET | DEF 14A | Proxy statementPeriod 2020-08-05 | 0001193125-20-180767 |
| 2019-06-2818:28 ET | DEF 14A | Proxy statementPeriod 2019-08-07 | 0001193125-19-185727 |
| 2018-06-2820:51 ET | DEF 14A | Proxy statementPeriod 2018-08-08 | 0001193125-18-207747 |
| 2017-06-2314:07 ET | DEF 14A | Proxy statementPeriod 2017-08-02 | 0001193125-17-211195 |
| 2016-08-0518:13 ET | 8-K | 8.01 Other events | 0001193125-16-673253 |
| 2016-06-2421:23 ET | DEF 14A | Proxy statementPeriod 2016-08-03 | 0001193125-16-631693 |
| 2015-07-0121:47 ET | DEF 14A | Proxy statementPeriod 2015-08-05 | 0001193125-15-241551 |
| 2013-04-2520:08 ET | DEF 14A | Proxy statementPeriod 2013-05-16 | 0001193125-13-173695 |
| 2012-12-2816:43 ET | SC 13D | Ownership report, active investor | 0000070858-12-000410 |
| 2012-07-0219:27 ET | DEF 14A | Proxy statementPeriod 2012-07-31 | 0001193125-12-291895 |
| 2011-06-2220:20 ET | DEF 14A | Proxy statementPeriod 2011-07-25 | 0000950123-11-060824 |
| 2010-08-0515:23 ET | SC 13D | Ownership report, active investor | 0001048703-10-000134 |
| 2010-06-1817:29 ET | DEF 14A | Proxy statementPeriod 2010-07-27 | 0000950123-10-059234 |
| 2009-06-1815:51 ET | DEF 14A | Proxy statementPeriod 2009-07-28 | 0000950123-09-014924 |
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:10 ET. Listed shows no prices and gives no investment advice.