================================================================================

                                 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 811-05785

                               -----------------

                     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
                             111 Huntington Avenue
                          Boston, 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: July 1, 2016 - June 30, 2017

================================================================================



ITEM 1. PROXY VOTING RECORD.



******************************* FORM N-Px REPORT *******************************

ICA File Number: 811-05785
Reporting Period: 07/01/2016 - 06/30/2017
MFS Investment Grade Municipal Trust









===================== MFS Investment Grade Municipal Trust =====================


COMMONWEALTH OF PUERTO RICO

Ticker:                      Security ID:  745145ZB1
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

COMMONWEALTH OF PUERTO RICO

Ticker:                      Security ID:  745145ZC9
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO AQUEDUCT & SEWER AUTHORITY

Ticker:                      Security ID:  745160PZ8
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO COMWLTH REF-PUB IMPT

Ticker:                      Security ID:  74514LD20
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO COMWLTH REF-PUB IMPT

Ticker:                      Security ID:  74514LVT1
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO COMWLTH REF-PUB IMPT

Ticker:                      Security ID:  74514LXD4
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO ELECTRIC POWER AUTHORITY

Ticker:                      Security ID:  7452686K3
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO ELECTRIC POWER AUTHORITY

Ticker:                      Security ID:  74526QAL6
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO ELECTRIC POWER AUTHORITY

Ticker:                      Security ID:  74526QAR3
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO ELECTRIC POWER AUTHORITY

Ticker:                      Security ID:  74526QEH1
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO ELECTRIC POWER AUTHORITY

Ticker:                      Security ID:  74526QLJ9
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO ELECTRIC POWER AUTHORITY

Ticker:                      Security ID:  74526QLM2
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO ELECTRIC POWER AUTHORITY

Ticker:                      Security ID:  74526QLR1
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO ELECTRIC POWER AUTHORITY

Ticker:                      Security ID:  74526QPJ5
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO ELECTRIC POWER AUTHORITY

Ticker:                      Security ID:  74526QPM8
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO ELECTRIC POWER AUTHORITY

Ticker:                      Security ID:  74526QPN6
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO ELECTRIC POWER AUTHORITY

Ticker:                      Security ID:  74526QPQ9
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  7451902B3
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  7451903P1
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  745190UP1
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  745190UQ9
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  745190ZM3
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  745190ZN1
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  745190ZQ4
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  745190ZR2
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  745190ZS0
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  745266BC9
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  745181C54
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  745181C62
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  745181C88
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  745181F77
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO HIGHWAY & TRANSPORTATION AUTHORITY

Ticker:                      Security ID:  745181ZK6
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO INDL TOURIST

Ticker:                      Security ID:  745272CU6
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry


--------------------------------------------------------------------------------

PUERTO RICO INDL TOURIST

Ticker:                      Security ID:  745272CV4
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry


--------------------------------------------------------------------------------

PUERTO RICO INDL TOURIST

Ticker:                      Security ID:  745272EN0
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry


--------------------------------------------------------------------------------

PUERTO RICO INDL TOURIST

Ticker:                      Security ID:  745272ET7
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry


--------------------------------------------------------------------------------

PUERTO RICO INDL TOURIST

Ticker:                      Security ID:  745272EU4
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry


--------------------------------------------------------------------------------

PUERTO RICO INDL TOURIST

Ticker:                      Security ID:  745272EW0
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry


--------------------------------------------------------------------------------

PUERTO RICO INDL TOURIST

Ticker:                      Security ID:  745272EX8
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry


--------------------------------------------------------------------------------

PUERTO RICO INDL TOURIST

Ticker:                      Security ID:  745272EY6
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry


--------------------------------------------------------------------------------

PUERTO RICO INDL TOURIST

Ticker:                      Security ID:  745272EZ3
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry


--------------------------------------------------------------------------------

PUERTO RICO INDL TOURIST

Ticker:                      Security ID:  745272FA7
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry


--------------------------------------------------------------------------------

PUERTO RICO INDL TOURIST

Ticker:                      Security ID:  745272FB5
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry


--------------------------------------------------------------------------------

PUERTO RICO INDL TOURIST EDL MED & ENVIRONMENTAL CTL FACS F

Ticker:                      Security ID:  74527JAC1
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  APR 25, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO INDL TOURIST EDL MED & ENVIRONMENTAL CTL FACS F

Ticker:                      Security ID:  74528NAU1
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry


--------------------------------------------------------------------------------

PUERTO RICO INFRASTRUCTURE FING AUTH SPL TAX REVENUE

Ticker:                      Security ID:  745220FH1
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO INFRASTRUCTURE FING AUTH SPL TAX REVENUE

Ticker:                      Security ID:  745220FN8
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO INFRASTRUCTURE FING AUTH SPL TAX REVENUE

Ticker:                      Security ID:  745220FS7
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO INFRASTRUCTURE FING AUTH SPL TAX REVENUE

Ticker:                      Security ID:  745220FT5
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO MUN FIN AGY

Ticker:                      Security ID:  745277PD9
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO PUB BLDGS AUTH REVGTD

Ticker:                      Security ID:  745235B75
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO PUB BLDGS AUTH REVGTD

Ticker:                      Security ID:  745235K59
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO PUB BLDGS AUTH REVGTD

Ticker:                      Security ID:  745235K67
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO PUB BLDGS AUTH REVGTD

Ticker:                      Security ID:  745235XG1
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO SALES TAX FING  CORP SALES TAX REV

Ticker:                      Security ID:  74529JAH8
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO SALES TAX FING  CORP SALES TAX REV

Ticker:                      Security ID:  74529JAL9
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO SALES TAX FING  CORP SALES TAX REV

Ticker:                      Security ID:  74529JAM7
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

PUERTO RICO SALES TAX FING  CORP SALES TAX REV

Ticker:                      Security ID:  74529JAP0
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.


--------------------------------------------------------------------------------

UNIVERSITY PUERTO R UNIV

Ticker:                      Security ID:  914811PX6
Meeting Date: MAR 30, 2017   Meeting Type: Written Consent
Record Date:  NOV 17, 2016

#     Proposal                                Mgt Rec   Vote Cast    Sponsor
1     By Marking For I Direct The             None      For          Management
      Institution Holding My Bonds to
      Transmit and Confirm My Bond Holding
      Information for Recording In The
      Registry. By Marking Against My Bonds
      Shall Be Missing From The Registry.

========== 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):  David DiLorenzo*
                           -------------------------------------------
                           David DiLorenzo, President and Principal
                           Executive Officer

Date: August 28, 2017

*By (Signature and Title)  /s/ Susan A. Pereira
                           -------------------------------------------
                           Susan A. Pereira, as attorney-in-fact

*    Executed by Susan A. Pereira on behalf of David DiLorenzo pursuant to a
     Power of Attorney dated June 1, 2017. (1)

(1)  Incorporated by reference to MFS Series Trust XIII (File Nos. 2-74959 and
     811-03327) Post-Effective Amendment No. 65 filed with the SEC via EDGAR on
     June 27, 2017.