NMZ on NYSE

NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND

Fund registered in the United States, based in Chicago, active since 2003.

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Last updated Oct 18, 2026.

Overview

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TickerNMZ on NYSE
HeadquartersChicago, United States
Incorporated inMA²
Business address333 W Wacker Drive, Chicago, Il 60606²

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Leadership

Who has led NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND, and when. Pick a name to see everywhere that person has worked.

Board members and other officers (34)

VP and TreasurerRobert Tanner Page Nov 5, 2025 to now³
Vice PresidentJames N. Nelson Iii. Mar 8, 2024 to Mar 8, 2024⁴
Vice PresidentMary Beth Ramsay Mar 11, 2024 to Mar 11, 2024⁵
VP and ControllerMarc Cardella Dec 3, 2024 to Dec 3, 2024⁶
Vice PresidentJohn M. McCann Apr 21, 2022 to Apr 21, 2022⁷
Chief Compliance OfficerBrett Black Jun 8, 2022 to Jun 8, 2022⁸
Vice PresidentTrey Stenersen Iii. Aug 15, 2022 to Aug 15, 2022⁹
Vice PresidentDeann Morgan Mar 6, 2020 to Mar 6, 2020¹⁰
Vice PresidentE. Scott Wickerham Apr 18, 2019 to Apr 18, 2019¹¹
Vice PresidentBrian J. Lockhart Aug 16, 2019 to Aug 16, 2019¹²
Vice PresidentJacques M. Longerstaey Aug 16, 2019 to Aug 16, 2019¹³
Vice PresidentJon Scott Meissner Oct 17, 2019 to Oct 17, 2019¹⁴
Vice PresidentWilliam T. Meyers Feb 28, 2018 to Feb 28, 2018¹⁵
TrusteeTerence J. Toth Aug 10, 2017 to Oct 25, 2023¹⁶
Vice PresidentMichael A. Perry Aug 11, 2017 to Aug 11, 2017¹⁷
Vice PresidentWilliam A. Siffermann Aug 11, 2017 to now¹⁸
Vice President and TreasurerNathaniel T. Jones Jun 24, 2016 to Oct 26, 2023¹⁹
Vice PresidentDavid J. Lamb Mar 5, 2015 to Mar 5, 2015²⁰
Vice President and TreasurerSherri A. Hlavacek Aug 14, 2015 to Aug 14, 2015²¹
Vice PresidentJoel T. Slager Jul 26, 2013 to Jul 26, 2013²²
Vice PresidentKathleen L. Prudhomme Jan 12, 2011 to Jan 12, 2011²³
Vice PresidentMichelle Ann McCarthy Aug 5, 2010 to Aug 5, 2010²⁴
Vice PresidentGregory T. Mino Apr 1, 2009 to Apr 1, 2009²⁵
Vice PresidentJames Ruane Apr 1, 2009 to Apr 1, 2009²⁶
Vice PresidentMargo L. Cook Apr 1, 2009 to Apr 1, 2009²⁷
Vice PresidentNizida Arriaga Apr 1, 2009 to Apr 1, 2009²⁸
Vice PresidentWilliam T. Huffman Jr. Apr 1, 2009 to Apr 1, 2009²⁹
Vice President & TreasurerScott S. Grace Nov 27, 2009 to Nov 27, 2009³⁰
Vice PresidentDemark L. Winget Jan 25, 2008 to Feb 28, 2018³¹
Vice PresidentChristopher M. Rohrbacher Jun 9, 2008 to Oct 11, 2016³²
Vice PresidentCedric H. Antosiewicz Jun 7, 2007 to Jun 7, 2007³³
Assistant Vice PresidentWalter M. Kelly Sep 28, 2006 to Sep 28, 2006³⁴
Board memberTerence J. Toth Jul 2, 2008 to Jul 2, 2008³⁵
Board memberCarole E. Stone Jan 9, 2007 to Jan 9, 2007³⁶

Timeline

Oct 7, 2003Founded NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND is founded³⁷

Filings

137 filings to the SEC since October 2021: 3 major events, 32 insider forms, 6 large holders, 96 other. The latest 20:

Oct 2, 2026424B3 PROSPECTUS FILED PURSUANT TO RULE 424(B)(3) EDGAR
Sep 25, 2026NPORT-P EDGAR
Sep 3, 20263 EDGAR
Sep 3, 20263 EDGAR
Sep 1, 20263 EDGAR
Aug 17, 2026N-PX EDGAR
Aug 6, 20264 PRIMARY DOCUMENT EDGAR
Aug 4, 20264 PRIMARY DOCUMENT EDGAR
Jul 28, 20264 PRIMARY DOCUMENT EDGAR
Jul 2, 2026N-CSRS NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND EDGAR
Jul 2, 2026DEF 14A NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND EDGAR
Jun 29, 20264 EDGAR
Jun 24, 2026NPORT-P EDGAR
Jun 11, 2026POS EX POST-EFFECTIVE AMENDMENT EDGAR
May 1, 2026N-23C-2 NOTICE OF INTENTION TO REDEEM SECURITIES EDGAR
Apr 29, 20264 EDGAR
Apr 29, 2026SCHEDULE 13D/A EDGAR
Apr 29, 2026SCHEDULE 13D/A EDGAR
Apr 24, 2026424B3 PROSPECTUS EDGAR
Mar 25, 2026NPORT-P EDGAR

The 137 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last three years, summarized. The full record is on SEC EDGAR.

Insider trades and holders

Large holders

Investors who own more than 5% must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively. 6 such filings since October 2021:

From Forms 4 and Schedules 13D and 13G filed with the SEC.

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.

Fund	Shares	Value	Share of the fund	Change
Morgan Stanley	3,168,046	$33.5M	0.0%	+502,314
Guggenheim Capital LLC	2,376,749	$25.1M	0.2%	+333,311
Wells Fargo & Company/mn	2,359,288	$24.9M	0.0%	+1,480,618
Hennion & Walsh Asset Management, Inc.	2,217,036	$23.4M	0.7%	+577,934
Raymond James Financial Inc	1,930,236	$20.4M	0.0%	+810,274
UBS Group AG	1,531,663	$16.2M	0.0%	−388,040
Bank Of America Corp /de/	1,112,841	$11.8M	0.0%	+723,642
LPL Financial LLC	1,080,405	$11.4M	0.0%	+316,334
Van Eck Associates Corp	1,056,439	$11.2M	0.0%	+382,155
Rivernorth Capital Management, LLC	1,049,891	$11.1M	0.5%	New
J.w. Cole Advisors, Inc.	1,023,649	$10.8M	0.2%	New
Cetera Investment Advisers	1,002,529	$10.6M	0.0%	+604,904
Melone Private Wealth, LLC	846,287	$8.9M	3.4%	+173,665
Rockefeller Capital Management L.P.	592,054	$6.3M	0.0%	+460,827
Northwestern Mutual Wealth Management Co	516,095	$5.5M	0.0%	+175,474
Royal Bank Of Canada	450,516	$4.8M	0.0%	+172,999
Commonwealth Equity Services, LLC	446,955	$4.7M	0.0%	+226,886
Osaic Holdings, Inc.	311,793	$3.3M	0.0%	+89,903
Advisors Asset Management, Inc.	271,945	$2.9M	0.0%	+9,551
HighTower Advisors, LLC	265,084	$2.8M	0.0%	New
Baird Financial Group, Inc.	217,064	$2.3M	0.0%	+59,503
Platform Technology Partners	193,277	$2.0M	0.3%	+20,042
Kestra Advisory Services, LLC	189,986	$2.0M	0.0%	+18,388
OneDigital Investment Advisors LLC	187,628	$2.0M	0.0%	+1,142
AE Wealth Management LLC	172,917	$1.8M	0.0%	+14,061

13F reports cover disclosed long positions in U.S. stocks only.

Sources

The numbers on this page point here. Each one links to the record it came from.

1
SEC EDGARNUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND filings on SEC EDGAR
2
SEC EDGARNUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND filings on SEC EDGAR
3
SEC EDGARRobert Tanner Page, VP and Treasurer
4
SEC EDGARJames N. Nelson Iii., Vice President
5
SEC EDGARMary Beth Ramsay, Vice President
6
SEC EDGARMarc Cardella, VP and Controller
7
SEC EDGARJohn M. McCann, Vice President
8
SEC EDGARBrett Black, Chief Compliance Officer
9
SEC EDGARTrey Stenersen Iii., Vice President
10
SEC EDGARDeann Morgan, Vice President
11
SEC EDGARE. Scott Wickerham, Vice President
12
SEC EDGARBrian J. Lockhart, Vice President
13
SEC EDGARJacques M. Longerstaey, Vice President
14
SEC EDGARJon Scott Meissner, Vice President
15
SEC EDGARWilliam T. Meyers, Vice President
16
SEC EDGARTerence J. Toth, Trustee
17
SEC EDGARMichael A. Perry, Vice President
18
SEC EDGARWilliam A. Siffermann, Vice President
19
SEC EDGARNathaniel T. Jones, Vice President and Treasurer
20
SEC EDGARDavid J. Lamb, Vice President
21
SEC EDGARSherri A. Hlavacek, Vice President and Treasurer
22
SEC EDGARJoel T. Slager, Vice President
23
SEC EDGARKathleen L. Prudhomme, Vice President
24
SEC EDGARMichelle Ann McCarthy, Vice President
25
SEC EDGARGregory T. Mino, Vice President
26
SEC EDGARJames Ruane, Vice President
27
SEC EDGARMargo L. Cook, Vice President
28
SEC EDGARNizida Arriaga, Vice President
29
SEC EDGARWilliam T. Huffman Jr., Vice President
30
SEC EDGARScott S. Grace, Vice President & Treasurer
31
SEC EDGARDemark L. Winget, Vice President
32
SEC EDGARChristopher M. Rohrbacher, Vice President
33
SEC EDGARCedric H. Antosiewicz, Vice President
34
SEC EDGARWalter M. Kelly, Assistant Vice President
35
SEC EDGARTerence J. Toth, Board member
36
SEC EDGARCarole E. Stone, Board member
37
gleifNUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND is founded