Company: CXH
Filing Date: 2025-01-27
Form Type: N-CSR
Source: 0001683863-25-000339
Chunk: 0

Company: MFS INVESTMENT GRADE MUNICIPAL TRUST
Filing Date: 2025-01-27
Form: N-CSR
Chunk 0
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-05785

MFS INVESTMENT GRADE MUNICIPAL TRUST

(Exact name of registrant as specified in charter)

111 Huntington Avenue, Boston, Massachusetts 02199 (Address of principal executive offices) (Zip code)

Christopher R. Bohane

Massachusetts Financial Services Company

111Huntington AvenueBoston, Massachusetts 02199

(Name and address of agents for service)

Registrant’s telephone number, including area code: (617) 954-5000

Date of fiscal year end: November 30

Date of reporting period: November 30, 2024

ITEM 1. REPORTS TO STOCKHOLDERS.

Item 1(a):

#### Annual Report
November 30, 2024

MFS ® Investment Grade Municipal Trust

CXH-ANN

MFS ®Investment Grade Municipal Trust

New York Stock Exchange Symbol: CXH

| Portfolio composition                                                     |  1 |
| Management review                                                         |  3 |
| Performance summary                                                       |  5 |
| Investment objective, principal investment strategies and principal risks |  7 |
| Effects of leverage                                                       | 17 |
| Portfolio managers’ profiles                                              | 18 |
| Dividend reinvestment and cash purchase plan                              | 19 |
| Portfolio of investments                                                  | 20 |
| Statement of assets and liabilities                                       | 45 |
| Statement of operations                                                   | 46 |
| Statements of changes in net assets                                       | 47 |
| Statement of cash flows                                                   | 48 |
| Financial highlights                                                      | 49 |
| Notes to financial statements                                             | 51 |
| Report of independent registered public accounting firm                   | 62 |
| Results of shareholder meeting                                            | 64 |
| Trustees and officers                                                     | 65 |
| Board review of investment advisory agreement                             | 70 |
| Proxy voting policies and information                                     | 74 |
| Quarterly portfolio disclosure                                            | 74 |
| Further information                                                       | 74 |
| Information about fund contracts and legal claims                         | 74 |
| Federal tax information                                                   | 74 |
| MFS®privacy notice                                                        | 76 |

| Contact information | back cover |

NOT FDIC INSURED • MAY LOSE VALUE • NO BANK GUARANTEE

Portfolio Composition