================================================================================ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-PX ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number 811-5785 MFS INVESTMENT GRADE MUNICIPAL TRUST (Exact name of registrant as specified in charter) 500 Boylston Street, Boston, Massachusetts 02116 (Address of principal executive offices) (Zip code) Susan S. Newton Massachusetts Financial Services Company 500 Boylston Street Boston, Massachusetts 02116 (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: July 1, 2011 - June 30, 2012 ================================================================================ ITEM 1. PROXY VOTING RECORD. ******************************* FORM N-Px REPORT ******************************* ICA File Number: 811-05785 Reporting Period: 07/01/2011 - 06/30/2012 MFS Investment Grade Municipal Trust ===================== MFS Investment Grade Municipal Trust ===================== TENNESSEE ENERGY ACQUISITION CORP GAS REV Ticker: Security ID: 880443BJ4 Meeting Date: JAN 06, 2012 Meeting Type: Written Consent Record Date: DEC 02, 2011 # Proposal Mgt Rec Vote Cast Sponsor 1 To Consent To The Proposed Amendments None For Management -------------------------------------------------------------------------------- TENNESSEE ENERGY ACQUISITION CORP GAS REV Ticker: Security ID: 880443BP0 Meeting Date: JAN 06, 2012 Meeting Type: Written Consent Record Date: DEC 02, 2011 # Proposal Mgt Rec Vote Cast Sponsor 1 To Consent To The Proposed Amendments None For Management -------------------------------------------------------------------------------- TENNESSEE ENERGY ACQUISITION CORP GAS REV Ticker: Security ID: 880443BQ8 Meeting Date: JAN 06, 2012 Meeting Type: Written Consent Record Date: DEC 02, 2011 # Proposal Mgt Rec Vote Cast Sponsor 1 To Consent To The Proposed Amendments None For Management -------------------------------------------------------------------------------- TENNESSEE ENERGY ACQUISITION CORP GAS REV Ticker: Security ID: 880443BS4 Meeting Date: JAN 06, 2012 Meeting Type: Written Consent Record Date: DEC 02, 2011 # Proposal Mgt Rec Vote Cast Sponsor 1 To Consent To The Proposed Amendments None For Management ========== END NPX REPORT SIGNATURES Pursuant to the requirements of the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. Registrant: MFS INVESTMENT GRADE MUNICIPAL TRUST By (Signature and Title): JOHN M. CORCORAN* --------------------------------------------------- John M. Corcoran, Principal Executive Officer & President Date: August 13, 2012 *By (Signature and Title) /s/ Susan S. Newton --------------------------------------------------- Susan S. Newton, as attorney-in-fact * Executed by Susan S. Newton on behalf of John M. Corcoran pursuant to a Power of Attorney dated July 18/th/, 2012. (1) (1) Incorporated by reference to MFS Municipal Series Trust (File Nos. 2-92915 and 811-4096) Post-Effective Amendment No. 54 filed with the SEC via EDGAR on July 26, 2012.