Company: NMI
Filing Date: 2025-07-07
Form Type: N-CSRS
Source: 0001193125-25-155990
Chunk: 2

Company: NUVEEN MUNICIPAL INCOME FUND INC
Filing Date: 2025-07-07
Form: N-CSRS
Chunk 2
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 and can be found on Nuveen’s enhanced closed-endfund resource page, which is at https://www.nuveen.com/resource-center- closed-end-funds,along with other Nuveen closed-endfund product updates. To ensure timely access to the latest information, shareholders may use a subscribe function, which can be activated at this web page (https://www.nuveen.com/subscriptions). COMMON SHARE EQUITY SHELF PROGRAM During the current reporting period, NMI was authorized by the Securities and Exchange Commission to issue additional common shares through an equity shelf program (Shelf Offering). Under these programs, NMI, subject to market conditions, may raise additional capital from time to time in varying amounts and offering methods at a net price at or above the Fund’s NAV per common share. The maximum aggregate offering under these Shelf Offerings are as shown in the accompanying table.

|                            |     | NMI |           |
| Maximum aggregate offering |     |     | 2,000,000 |

During the current reporting period, NMI sold common shares through its Shelf Offering at a weighted average premium to its NAV per common share in the accompanying table. 4

|                                                       |     | NMI |        |
| Common shares sold through shelf offering             |     |     | 15,995 |
| Weighted average premium to NAV per common share sold |     |     |  0.53% |

Refer to the Notes to Financial Statements for further details on Shelf Offerings and the Fund’s transactions. COMMON SHARE REPURCHASES The Funds’ Board of Directors/Trustees reauthorized an open-market share repurchase program, allowing each Fund to repurchase and retire an aggregate of up to approximately 10% of its outstanding common shares. During the current reporting period, the Funds did not repurchase any of their outstanding common shares. As of April 30, 2025, (and since the inception of the Funds’ repurchase programs), each Fund has cumulatively repurchased and retired its outstanding common shares as shown in the accompanying table.

|                                                    |     | NUV |            |     | NUW |           |     | NMI |           |
| Common shares cumulatively repurchased and retired |     |     |          0 |     |     |         0 |     |     |         0 |
| Common shares authorized for repurchase            |     |     | 20,750,000 |     |     | 1,795,000 |     |