Company: NMZ
Filing Date: 2025-06-30
Form Type: DEF 14A
Source: 0001193125-25-152769
Chunk: 7

Company: NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
Filing Date: 2025-06-30
Form: DEF 14A
Chunk 7
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2) Board Members are to be elected by holders of Preferred Shares, voting separately as a single class. Current                                                                                     
 Board Members Moschner and Wolff are nominees for election by holders of Preferred Shares for a term expiring at the next annual meeting or until their successors have been duly elected and qualified. |

It is the intention of the persons named in the enclosed proxy to vote the shares represented thereby for the election of the nominees listed in the table below unless the proxy is marked otherwise. Each of the nominees has agreed to serve as a Board Member of each Fund if elected. However, should any nominee become unable to serve or for good cause will not serve, the proxies will be voted for substitute nominees, if any, designated by that Fund’s then current Board. 7

ClassI Board Members: For each of AMT-Free Value,
Municipal Value, New York Value, Select Maturities and Taxable Income, Board Member Wolff was last elected to the Fund’s Board as a Class I Board Member at the annual meeting of shareholders held on August 5, 2022. For each Fund other
than Municipal Income, Board Member Young was last elected to the Fund’s Board as a Class I Board Member at the annual meeting of shareholders held on August 9, 2023. Board Members Forrester and Kenny were appointed by the Board to
the Fund’s Board effective January 1, 2024. For Municipal Income, Board Members Lancellotta, Nelson, Toth and Young were last elected to the Fund’s Board as Class I Board Members at the annual meeting of shareholders held on
August 9, 2023, and Board Member Boateng was appointed by the Board to Municipal Income’s Board effective January 1, 2024.

ClassII Board Members: For each Fund other than Municipal Income, Board Members Lancellotta, Nelson and Toth were last elected to the
Fund’s Board as Class II Board Members at the annual meeting of shareholders held on August 9, 2023, and Board Member Boateng was appointed by the Board to the Fund’s Board effective January 1, 2024. For Municipal Income,
Board Members Medero, Moschner and Thornton were last elected to the Fund’s Board as Class II Board Members at the annual meeting of shareholders held on August 8, 2024, and Board Member Starr was appointed by the Board to the
Fund’s Board effective January 1, 2024.

ClassIII Board Members: For each of AMT