# EDGAR Filing Document

**Accession Number:** 0001137393
**File Stem:** 0001193125-25-215825
**Filing Date:** 2025-9
**Character Count:** 4469
**Document Hash:** 90d0f6e38b817f1b25a41d0d856b6a06
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-25-215825.hdr.sgml**: 20250924

**ACCESSION NUMBER**: 0001193125-25-215825

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20250924

**DATE AS OF CHANGE**: 20250924

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BLACKROCK MUNICIPAL INCOME TRUST
- **CENTRAL INDEX KEY:** 0001137393

**ORGANIZATION NAME:**
- **EIN:** 510409115
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 811-10339
- **FILM NUMBER:** 251339741

**BUSINESS ADDRESS:**
- **STREET 1:** 100 BELLEVUE PARKWAY
- **STREET 2:** MUTUAL FUND DEPARTMENT
- **CITY:** WILMINGTON
- **STATE:** DE
- **ZIP:** 19809
- **BUSINESS PHONE:** 888-825-2257

**MAIL ADDRESS:**
- **STREET 1:** 100 BELLEVUE PARKWAY
- **STREET 2:** MUTUAL FUND DEPARTMENT
- **CITY:** WILMINGTON
- **STATE:** DE
- **ZIP:** 19809

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**SCHEDULE 14A INFORMATION** 

**Proxy Statement Pursuant to Section 14(a) of the** 

**Securities Exchange Act of 1934** 

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| | |
|:---|:---|
|  Filed by the Registrant ☒ |  |
|  Filed by a Party other than the Registrant ☐ |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Check the appropriate box: |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ☐ Preliminary Proxy Statement | ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ☐ Definitive Proxy Statement |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ☒ Definitive Additional Materials | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ☒ Definitive Additional Materials |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ☐ Soliciting Material Pursuant to § 240.14a-12 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ☐ Soliciting Material Pursuant to § 240.14a-12 |

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**BLACKROCK MUNICIPAL INCOME TRUST** 

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if Other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

☒ No fee required.

☐ Fee paid previously with preliminary materials.

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

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![LOGO](g941152dsp002.jpg)

Your Vote Matters BlackRock Municipal Closed - End Funds Vote now to reduce costs for your Fund and to stop receiving solicitation notices Why am I receiving this letter? You are a shareholder of one or more of the following funds and entitled to vote at the upcoming special shareholder meeting on October 15 , 2025 : BlackRock Municipal Income Trust II (BLE) BlackRock Municipal Income Quality Trust (BYM) BlackRock Municipal Income Trust (BFK) BlackRock MuniHoldings Quality Fund II, Inc. (MUE) BlackRock MuniHoldings Fund, Inc. (MHD) What am I voting on? Shareholders are being asked to approve combining the funds to realize potential benefits for you as a shareholder, including: Lower expenses, ranking in the 1st quartile among peers Enhanced trading on exchange Implem entation of a discount management program How do the Boards recommend that I vote ? The Board of each Fund unanimously recommends that you vote "FOR" each applicable Proposal . If you have any questions on how to vote or about the proposals to be voted on, please contact Georgeson LLC at 1-833-880-8840 . Theproxymaterialspreviouslysenttoyoucontainimportantinformation; pleasereadthem carefully.CopiesoftheProxyStatementareavailableforfreeontheSecuritiesandExchange Commission'swebsiteatwww.sec.govorbyvisitingWWW.PROXY-DIRECT.COM/BLK-34667 orbycallingGeorgesonLLC,theFunds'proxysolicitor,tollfreeat1-833-880-8840. Voting is simple Vote online By scanning the QR code orusing the website provided on the enclosed proxy card or voting instruction form Vote by phone By calling the toll-free number on theen closed proxy card or voting instruction form or downloading the ProxyVote app Vote b y mail By completing and returning the enclosed proxy card or voting instruction form in the pre-paid envelope provided BlackRock.