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 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: May 31, 2024

ITEM 1. REPORTS TO STOCKHOLDERS.

Item 1(a):


Semiannual Report
May 31, 2024
MFS®  Investment Grade Municipal Trust
CXH-SEM
Portfolio Composition
Portfolio structure (i)
Top ten industries (i)
Healthcare Revenue - Hospitals 23.2%
General Obligations - General Purpose 15.2%
Miscellaneous Revenue - Other 11.2%
Healthcare Revenue - Long Term Care 10.2%
Airport Revenue 9.6%
Multi-Family Housing Revenue 9.3%
Universities - Colleges 9.0%
Utilities - Other 8.2%
Student Loan Revenue 7.9%
Secondary Schools 6.9%
Composition including fixed income credit quality (a)(i)
AAA 6.7%
AA 29.5%
A 56.8%
BBB 40.6%
BB 8.6%
B 1.1%
CCC 1.2%
CC 0.4%
Not Rated 17.9%
Non-Fixed Income (o) 0.0%
Cash & Cash Equivalents
(Less Liabilities) (b) 		(62.8)%
Portfolio facts
Average Duration (d) 12.7
Average Effective Maturity (m) 21.3 yrs.
 
1
Portfolio Composition - continued
(a) For all securities other than those specifically described below, ratings are assigned to underlying securities utilizing ratings from Moody’s, Fitch, and Standard & Poor’s rating agencies and applying the following hierarchy: If all three agencies provide a rating, the middle rating (after dropping the highest and lowest ratings) is assigned; if two of the three agencies rate a security, the lower of the two is assigned. If none of the 3 rating agencies above assign a rating, but the security is rated by DBRS Morningstar, then the DBRS Morningstar rating is assigned. If none of the 4 rating agencies listed above rate the security, but the security is rated by the Kroll Bond Rating Agency (KBRA), then the KBRA rating is assigned. Ratings are shown in the S&P and Fitch scale (e.g., AAA). Securities rated BBB or higher are considered investment grade. All ratings are subject to change. Not Rated includes fixed income securities and fixed income derivatives that have not been rated by any rating agency. Non-Fixed Income includes equity securities (including convertible bonds and equity derivatives), ETFs and Options on ETFs, and/or commodity-linked derivatives. The fund may or may not have held all of these instruments on this date. The fund is not rated by these agencies.
(b) Cash & Cash Equivalents (Less Liabilities) includes any cash, investments in money market funds, short-term securities, and other assets less liabilities. Liabilities include the value of the aggregate liquidation preference of the remarketable variable rate munifund term preferred shares (RVMTP shares) issued by the fund. Cash & Cash Equivalents (Less Liabilities) is negative due to the aggregate liquidation value of RVMTP shares. Please see the Statement of Assets and Liabilities for additional information related to the fund’s cash position and other assets and liabilities. Please see Note 8 in the Notes to Financial Statements for more information on the RVMTP shares issued by the fund.
(d) Duration is a measure of how much a bond’s price is likely to fluctuate with general changes in interest rates, e.g., if rates rise 1.00%, a bond with a 5-year duration is likely to lose about 5.00% of its value due to the interest rate move. The Average Duration calculation reflects the impact of the equivalent exposure of derivative positions, if any. This calculation is based on net assets applicable to common shares as of May 31, 2024.
(i) For purposes of this presentation, the components include the value of securities, and reflect the impact of the equivalent exposure of derivative positions, if any. These amounts may be negative from time to time. Equivalent exposure is a calculated amount that translates the derivative position into a reasonable approximation of the amount of the underlying asset that the portfolio would have to hold at a given point in time to have the same price sensitivity that results from the portfolio’s ownership of the derivative contract. When dealing with derivatives, equivalent exposure is a more representative measure of the potential impact of a position on portfolio performance than value. The bond component will include any accrued interest amounts.
(m) In determining each instrument’s effective maturity for purposes of calculating the fund’s dollar-weighted average effective maturity, MFS uses the instrument’s stated maturity or, if applicable, an earlier date on which MFS believes it is probable that a maturity-shortening feature (such as a put, pre-refunding or prepayment) will cause the instrument to be repaid. Such an earlier date can be substantially shorter than the instrument’s stated maturity. This calculation is based on gross assets, which consists of net assets applicable to common shares plus the value of preferred shares, as of May 31, 2024.
(o) Less than 0.1%.
Percentages are based on net assets applicable to common shares as of May 31, 2024.
The portfolio is actively managed and current holdings may be different.
2
Portfolio Managers' Profiles
Portfolio Manager Primary Role Since Title and Five Year History
Michael Dawson Portfolio Manager 2007 Investment Officer of MFS; employed in the investment management area of MFS since 1998.
Jason Kosty Portfolio Manager 2022 Investment Officer of MFS; employed in the investment management area of MFS since 2014.
Geoffrey Schechter Portfolio Manager 2007 Investment Officer of MFS; employed in the investment management area of MFS since 1993.
Effective September 30, 2025, Geoffrey Schechter will no longer be a Portfolio Manager of the fund.
Other Notes
The fund’s shares may trade at a discount or premium to net asset value. When fund shares trade at a premium, buyers pay more than the net asset value of the underlying fund shares, and shares purchased at a premium would receive less than the amount paid for them in the event of the fund’s concurrent liquidation.
The fund’s monthly distributions may include a return of capital to shareholders to the extent that distributions are in excess of the fund’s net investment income and net capital gains, determined in accordance with federal income tax regulations. Distributions that are treated for federal income tax purposes as a return of capital will reduce each shareholder’s basis in his or her shares and, to the extent the return of capital exceeds such basis, will be treated as gain to the shareholder from a sale of shares. Returns of shareholder capital may have the effect of reducing the fund’s assets and increasing the fund’s expense ratio.
In accordance with Section 23(c) of the Investment Company Act of 1940, the fund hereby gives notice that it may from time to time repurchase shares of the fund in the open market at the option of the Board of Trustees and on such terms as the Trustees shall determine.
3
Portfolio of Investments
5/31/24 (unaudited)
The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by jurisdiction.
Issuer     Shares/Par Value ($)
Municipal Bonds - 159.7%
Alabama - 3.4%
Birmingham, AL, Special Care Facilities Financing Authority Rev. (Methodist Home for the Aging), 5.25%, 6/01/2025   $ 15,000 $14,930
Black Belt Energy Gas District, AL, Gas Project Rev., “A”, 4%, 6/01/2051 (Put Date 12/01/2031)     365,000 359,226
Black Belt Energy Gas District, AL, Gas Project Rev., “C-1”, 5.25%, 2/01/2053 (Put Date 6/01/2029)     750,000 783,273
Black Belt Energy Gas District, AL, Gas Project Rev., “F”, 5.5%, 11/01/2053 (Put Date 12/01/2028)     170,000 178,930
Jacksonville, AL, Public Educational Building Authority Higher Education Facilities Rev. (Jacksonville State University Foundation), “A”, AGM, 5.5%, 8/01/2058     115,000 123,930
Jefferson County, AL, Sewer Rev. Warrants, 5.5%, 10/01/2053     395,000 425,289
Southeast Alabama Energy Authority Commodity Supply Rev. (Project No. 3), “A-1”, 5.5%, 1/01/2053 (Put Date 12/01/2029)     325,000 344,396
University of South Alabama, Facilities Rev., “A”, BAM, 5%, 4/01/2049     100,000 102,088
        $2,332,062
Alaska - 0.5%
Alaska Housing Finance Corp., General Mortgage Rev. II, “C”, 5.75%, 12/01/2052   $ 345,000 $360,107
Arizona - 4.5%
Arizona Industrial Development Authority Education Rev. (Academies of Math & Science Projects), 5%, 7/01/2038   $ 300,000 $301,067
Arizona Industrial Development Authority Education Rev. (Benjamin Franklin Charter School Projects), “A”, 5%, 7/01/2043     110,000 107,534
Arizona Industrial Development Authority Education Rev. (KIPP Nashville Projects), “A”, 5%, 7/01/2057     35,000 34,883
Maricopa County, AZ, Higley Unified School District No. 60, Certificates of Participation, AGM, 4.25%, 6/01/2047     95,000 91,205
Maricopa County, AZ, Higley Unified School District No. 60, Certificates of Participation, AGM, 5%, 6/01/2053     640,000 670,909
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Great Hearts Academies Project), “A”, 5%, 7/01/2036     60,000 60,332
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Great Hearts Academies Project), “A”, 5%, 7/01/2041     45,000 45,078
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Great Hearts Academies Project), “A”, 5%, 7/01/2046     80,000 79,519
4
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Arizona - continued
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Legacy Traditional Schools Project), 5%, 7/01/2035 (n)   $ 70,000 $70,346
Phoenix, AZ, Industrial Development Authority, Education Facility Rev. (Legacy Traditional Schools Project), 5%, 7/01/2045 (n)     80,000 78,010
Phoenix, AZ, Industrial Development Authority, Hotel Rev. (Provident Group - Falcon Properties LLC, Project), “A”, 4%, 12/01/2051 (n)     300,000 218,475
Phoenix, AZ, Industrial Development Authority, Hotel Rev. (Provident Group - Falcon Properties LLC, Project), “B”, 5.75%, 12/15/2057 (n)     100,000 75,541
Pima County, AZ, Industrial Development Authority Education Facility Rev. (American Leadership Academy Project), 4%, 6/15/2051 (n)     120,000 93,619
Pima County, AZ, Industrial Development Authority Senior Living Rev. (La Posada at Pusch Ridge Project), “A”, 7%, 11/15/2057 (n)     140,000 148,882
Pima County, AZ, Industrial Development Authority Senior Living Rev. (La Posada at Pusch Ridge Project), “B3”, 5.125%, 11/15/2029 (n)     70,000 70,465
Salt Verde Financial Corp., AZ, Senior Gas Rev., 5%, 12/01/2032     795,000 826,327
Sierra Vista, AZ, Industrial Development Authority, Education Facility Rev. (American Leadership Academy Project), 5.75%, 6/15/2058     150,000 150,789
        $3,122,981
Arkansas - 0.8%
Pulaski County, AR, Hospital Rev. (Arkansas Children's Hospital), 5.25%, 3/01/2053   $ 435,000 $463,781
Pulaski County, AR, Public Facilities Board, Healthcare Rev. (Baptist Health), 5%, 12/01/2042     120,000 116,360
        $580,141
California - 8.3%
Burbank, Glendale & Pasadena, CA, Airport Authority Rev., “B”, AGM, 4.25%, 7/01/2043   $ 455,000 $444,163
Burbank, Glendale & Pasadena, CA, Airport Authority Rev., “B”, AGM, 4.5%, 7/01/2054     850,000 831,448
California Community Choice Financing Authority, Clean Energy Project Rev., “C”, 5.25%, 1/01/2054 (Put Date 10/01/2031)     735,000 768,126
California Housing Finance Agency Municipal Certificates, “A”, 4.375%, 9/20/2036     480,980 475,007
California Housing Finance Agency Municipal Certificates, “X”, 0.798%, 11/20/2035 (i)     1,759,204 83,933
California Municipal Finance Authority, COP (Palomar Health), “A”, AGM, 5.25%, 11/01/2052     95,000 99,512
California Municipal Special Finance Agency, Essential Housing Rev. (Solana at Grand), “A-1”, 4%, 8/01/2056 (n)     100,000 85,931
California Public Finance Authority, Senior Living Rev. (Enso Village Project), “B-1”, 3.125%, 5/15/2029 (n)     55,000 53,411
5
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
California - continued
California Public Finance Authority, Senior Living Rev. (Enso Village Project), “B-2”, 2.375%, 11/15/2028 (n)   $ 25,000 $24,333
California School Finance Authority, Charter School Rev. (Aspire Public Schools - Obligated Group - Issue No. 6), “A”, 5%, 8/01/2052 (n)     235,000 233,023
California School Finance Authority, School Facility Rev. (Alliance for College-Ready Public Schools Projects), “A”, 5%, 7/01/2045 (n)     100,000 100,026
California Statewide Communities Development Authority Rev. (Enloe Medical Center), “A”, AGM, 5.375%, 8/15/2057     130,000 138,658
California Statewide Communities Development Authority Rev. (Loma Linda University Medical Center), “A”, 5%, 12/01/2041 (n)     365,000 366,525
California Statewide Communities Development Authority Rev. (Loma Linda University Medical Center), “A”, 5.25%, 12/01/2044     245,000 245,579
California Statewide Communities Development Authority Rev. (Loma Linda University Medical Center), “A”, 5%, 12/01/2046 (n)     120,000 120,103
California Statewide Communities Development Authority Rev. (Loma Linda University Medical Center), “A”, 5.25%, 12/01/2056 (n)     250,000 251,033
California Statewide Communities Development Authority, College Housing Rev. (NCCD-Hooper Street LLC College of the Arts Project), 5.25%, 7/01/2049 (n)     100,000 100,172
Indio, CA, Public Financing Authority Lease Rev., “A”, BAM, 4.5%, 11/01/2052     125,000 126,476
Mount San Antonio, CA, Community College District Rev. (Election of 2008), “A”, 5.875%, 8/01/2028     140,000 153,468
River Islands, CA, Public Finance Authority Improvement Area No. 1, Special Tax Community Facilities District No. 2003-1, “A-1”, AGM, 5.25%, 9/01/2052     205,000 220,040
San Francisco, CA, City & County Redevelopment Successor Agency, Tax Allocation (Mission Bay South Redevelopment Project), “A”, 5%, 8/01/2043     25,000 25,017
State of California, Veterans General Obligation, “CU”, 4.85%, 12/01/2046     255,000 264,751
University of California, Hastings Campus Housing Finance Authority, Campus Housing Rev., “A”, 5%, 7/01/2061 (n)     325,000 295,594
University of California, Hastings Campus Housing Finance Authority, Campus Housing Rev., Convertible Capital Appreciation, “B”, 0% to 7/01/2035, 6.75% to 7/01/2061 (n)     330,000 146,730
West Contra Costa, CA, Unified School District, “B”, NPFG, 6%, 8/01/2024     5,000 5,017
Whittier, CA, Health Facility Rev. (PIH Health), 5%, 6/01/2044     125,000 125,022
        $5,783,098
6
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Colorado - 5.7%
Aurora, CO, Science & Technology Park Metropolitan District No. 1, Special Rev., “A”, AGM, 5%, 12/01/2054   $ 80,000 $83,805
Aurora, CO, Science & Technology Park Metropolitan District No. 1, Special Rev., “B”, AGM, 4.75%, 12/15/2054     185,000 185,777
Broomfield, CO, Midcities Metropolitan District No. 2 Special Rev., AGM, 4%, 12/01/2046     380,000 353,267
Colorado Educational & Cultural Facilities Authority Rev. (Classical Academy Project), “A”, 5%, 12/01/2038     75,000 75,177
Colorado Educational & Cultural Facilities Authority Rev. (Montessori Charter School Project), 5%, 7/15/2037     40,000 40,038
Colorado Educational & Cultural Facilities Authority Rev. (Twin Peaks Charter Academy Project), 5%, 11/15/2031     145,000 145,549
Colorado Educational & Cultural Facilities Authority, Charter School Refunding Rev. (American Academy Project), 5%, 12/01/2055     685,000 680,626
Colorado Health Facilities Authority Rev. (CommonSpirit Health), “A”, 5.25%, 11/01/2052     365,000 385,569
Colorado Health Facilities Authority Rev. (CommonSpirit Health), “A-2”, 4%, 8/01/2049     80,000 73,354
Denver, CO, City & County Airport System Rev., “A”, 4.125%, 11/15/2047     80,000 74,476
Denver, CO, City & County Airport System Rev., “A”, 4.125%, 11/15/2053     80,000 73,678
Denver, CO, Convention Center Hotel Authority Rev., 5%, 12/01/2040     120,000 120,571
Denver, CO, Health & Hospital Authority Rev., “A”, 4%, 12/01/2040     425,000 370,320
Denver, CO, Health & Hospital Authority Rev., “A”, 5.25%, 12/01/2045     95,000 95,018
Denver, CO, Multi-Family Housing Authority Rev. (FLO Senior Apartment Project), “A”, 4.5%, 7/01/2041     290,000 291,316
Loveland, CO, Lakes at Centerra Metropolitan District No. 2, General Obligation., “A”, AGM, 5%, 12/01/2049     500,000 519,376
Park Creek Metropolitan District, CO, Senior Limited Property Tax Supported Rev., “A”, NPFG, 5%, 12/01/2045     405,000 405,282
        $3,973,199
Connecticut - 2.7%
Connecticut Health & Educational Facilities Authority Rev. (Masonicare), “F”, 5%, 7/01/2037   $ 675,000 $669,858
Great Pond, CT, Improvement District Special Obligation Rev. (Great Pond Phase II Project), 5%, 10/01/2035 (n)     890,000 901,594
Mohegan Tribal Finance Authority, CT, Economic Development Bonds, 7%, 2/01/2045 (n)     265,000 265,063
        $1,836,515
7
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
District of Columbia - 0.4%
Metropolitan Washington, D.C., Airport Authority System Refunding Rev., “A”, 4.5%, 10/01/2053   $ 290,000 $281,769
Florida - 9.8%
Bellalago, FL, Educational Facilities Benefit District Capital Improvement Refunding Rev., 4.375%, 5/01/2030   $ 80,000 $80,010
Bellalago, FL, Educational Facilities Benefit District Capital Improvement Refunding Rev., 4.5%, 5/01/2033     35,000 35,002
Collier County, FL, Health Facilities Authority, Residential Care Facility Rev. (The Moorings, Inc.), 4%, 5/01/2052     115,000 100,995
Collier County, FL, Industrial Development Authority, Healthcare Facilities Rev. (NCH Healthcare System Projects), “A”, AGM, 5%, 10/01/2054     90,000 93,823
Florida Development Finance Corp. Educational Facilities Rev. (Drs. Kiran & Pallavi Patel 2017 Foundation for Global Understanding, Inc. Project), “A”, 4%, 7/01/2051 (n)     100,000 82,350
Florida Development Finance Corp. Educational Facilities Rev. (Mater Academy Projects), “A”, 5%, 6/15/2056     60,000 58,222
Florida Development Finance Corp. Educational Facilities Rev. (River City Science Academy Projects), “A”, 4%, 7/01/2055     25,000 20,040
Florida Development Finance Corp. Educational Facilities Rev. (River City Science Academy Projects), “A-1”, 5%, 2/01/2057     15,000 14,506
Florida Development Finance Corp. Rev. (Brightline Florida Passenger Rail Project), AGM, 5.25%, 7/01/2053     1,355,000 1,396,833
Florida Development Finance Corp. Senior Living Rev. (Glenridge on Palmer Ranch Project), 5%, 6/01/2051 (n)     200,000 164,900
Florida Development Finance Corp. Senior Living Rev. (Mayflower Retirement Community Project), “A”, 4%, 6/01/2055 (n)     165,000 104,269
Florida Higher Educational Facilities Financing Authority Rev. (Jacksonville University Project), “A”, 5%, 6/01/2048 (n)     100,000 92,202
Hillsborough County FL, Industrial Development Authority, Hospital Rev. (Tampa General Hospital Project), “A”, 4%, 8/01/2050     1,000,000 870,325
Lee County, FL, Industrial Development Authority Healthcare Facilities Rev. (Shell Point Alliance), 5%, 11/15/2044     100,000 99,617
Lee County, FL, Industrial Development Authority Healthcare Facilities Rev. (Shell Point Alliance), 5%, 11/15/2049     160,000 155,069
Miami Beach, FL, Health Facilities Authority Hospital Rev. (Mount Sinai Medical Center of Florida), “B”, 4%, 11/15/2051     440,000 392,675
Miami-Dade County, FL, Seaport Refunding Rev., “A”, 5.25%, 10/01/2052     45,000 47,151
Orange County, FL, Health Facilities Authority Hospital Rev. (Orlando Health Obligated Group), “A”, 5%, 10/01/2053     240,000 250,018
8
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Florida - continued
Orange County, FL, Health Facilities Authority Rev. (Presbyterian Retirement Communities Obligated Group Project), “A”, 4%, 8/01/2047   $ 580,000 $486,521
Osceola County, FL, Transportation Improvement and Refunding Rev. (Osceola Parkway), Capital Appreciation, “A-2”, 0%, 10/01/2037     105,000 55,495
Osceola County, FL, Transportation Improvement and Refunding Rev. (Osceola Parkway), Capital Appreciation, “A-2”, 0%, 10/01/2042     175,000 67,331
Palm Beach County, FL, Educational Facilities Authority Rev. (Palm Beach Atlantic University, Inc.), 5.25%, 10/01/2053     120,000 123,575
Palm Beach County, FL, Health Facilities Authority Hospital Rev. (Jupiter Medical Center Project), “A”, 5%, 11/01/2052     55,000 54,106
Palm Beach County, FL, Health Facilities Authority Rev. (Toby & Leon Cooperman Sinai Residences of Boca Raton), 4.25%, 6/01/2056     130,000 103,045
Pasco County, FL, Capital Improvement Cigarette Tax Allocation, “A”, AGM, 5.75%, 9/01/2054     390,000 432,777
Pasco County, FL, Del Webb Bexley Community Development District, Special Assessment Rev., 5.4%, 5/01/2049     100,000 100,541
Pompano Beach, FL, Refunding Rev. (John Knox Village Project), “A”, 4%, 9/01/2051     40,000 31,014
Pompano Beach, FL, Refunding Rev. (John Knox Village Project), “A”, 4%, 9/01/2056     170,000 127,565
South Miami, FL, Health Facilities Authority Hospital Refunding Rev. (Baptist Health South Florida Obligated Group), 4%, 8/15/2047     355,000 325,269
St. John's County, FL, Industrial Development Authority, Senior Living Rev. (Vicars Landing Project), “A”, 4%, 12/15/2050     40,000 28,983
Sumter County, FL, Industrial Development Authority Hospital Rev. (Central Florida Health Alliance Projects), “A”, 5%, 7/01/2026     20,000 20,013
Sumter County, FL, Industrial Development Authority Hospital Rev. (Central Florida Health Alliance Projects), “A”, 5%, 7/01/2029     20,000 20,011
Sumter County, FL, Industrial Development Authority Hospital Rev. (Central Florida Health Alliance Projects), “A”, 5.125%, 7/01/2034     40,000 40,027
Sumter County, FL, Industrial Development Authority Hospital Rev. (Central Florida Health Alliance Projects), “A”, 5.25%, 7/01/2044     120,000 120,042
Tallahassee, FL, Health Facilities Rev. (Tallahassee Memorial Healthcare, Inc.), “A”, 5%, 12/01/2055     25,000 23,553
Tampa, FL (University of Tampa Project), 5%, 4/01/2040     85,000 85,380
Tampa, FL, Sports Authority Rev. (Tampa Bay Arena), NPFG, 5.75%, 10/01/2025     330,000 335,926
Westridge, FL, Community Development District, Capital Improvement Rev., 5.8%, 5/01/2037     50,000 50,024
Wildwood, FL, Special Assessment Rev. (Village Community Development District No. 15), 5.25%, 5/01/2054     100,000 102,000
        $6,791,205
9
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Georgia - 3.5%
Atlanta, GA, Geo. L. Smith II World Congress Center Authority Convention Center Hotel Rev., “B”, 5%, 1/01/2054 (n)   $ 100,000 $88,736
Georgia Main Street Natural Gas, Inc., Gas Project Rev., “A”, 5.5%, 9/15/2026     120,000 121,885
Georgia Main Street Natural Gas, Inc., Gas Project Rev., “A”, 5.5%, 9/15/2028     250,000 257,782
Georgia Main Street Natural Gas, Inc., Gas Project Rev., “A”, 5%, 5/15/2043     75,000 75,415
Georgia Main Street Natural Gas, Inc., Gas Supply Rev., “C”, 5%, 9/01/2053 (Put Date 9/01/2030)     390,000 409,489
Georgia Municipal Electric Authority (Plant Vogtle Units 3 & 4 Project J), “A”, AGM, 5%, 7/01/2064     245,000 253,012
Georgia Municipal Electric Authority (Plant Vogtle Units 3 & 4 Project P), “A”, 5.5%, 7/01/2064     130,000 135,542
Georgia Ports Authority Rev., 4%, 7/01/2052     145,000 137,443
Georgia Private Colleges & Universities Authority Rev. (Mercer University Project), 5.25%, 10/01/2051     560,000 588,187
Hall County and Gainesville, GA, Hospital Authority Rev. (Northeast Georgia Health System, Inc. Project), “A”, 5.5%, 8/15/2054 (Prerefunded 2/15/2025)     320,000 324,163
        $2,391,654
Guam - 0.1%
Guam International Airport Authority Rev., Taxable (A.B. Won Pat Airport), “A”, 4.46%, 10/01/2043   $ 35,000 $28,240
Illinois - 12.0%
Bolingbrook, IL, Sales Tax Rev., 6.25%, 1/01/2024   $ 45,239 $45,239
Bridgeview, IL, Stadium and Redevelopment Projects, Taxable, AAC, 5.14%, 12/01/2036     360,000 319,156
Chicago, IL, Board of Education, Dedicated Capital Improvement Tax Bond, 5%, 4/01/2045     80,000 83,134
Chicago, IL, Board of Education, Dedicated Capital Improvement Tax Bond, 5%, 4/01/2046     100,000 100,230
Chicago, IL, Board of Education, Dedicated Capital Improvement Tax Bond, 6%, 4/01/2046     555,000 580,733
Chicago, IL, Board of Education, Dedicated Capital Improvement Tax Bond, 5.75%, 4/01/2048     175,000 192,290
Chicago, IL, Board of Education, Unlimited Tax General Obligation Dedicated Rev., “A”, 7%, 12/01/2044     190,000 196,152
Chicago, IL, Board of Education, Unlimited Tax General Obligation Refunding Dedicated Rev., “A”, 5%, 12/01/2042     100,000 97,874
Chicago, IL, Board of Education, Unlimited Tax General Obligation Refunding Dedicated Rev., “B”, 4%, 12/01/2039     100,000 92,674
10
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Illinois - continued
Chicago, IL, Board of Education, Unlimited Tax General Obligation Refunding Dedicated Rev., “B”, 4%, 12/01/2041   $ 230,000 $209,312
Chicago, IL, Board of Education, Unlimited Tax General Obligation Refunding Dedicated Rev., “H”, 5%, 12/01/2046     180,000 177,536
Chicago, IL, General Obligation (Chicago Works), “A”, 5.5%, 1/01/2043     750,000 786,465
Chicago, IL, General Obligation, “A”, 5%, 1/01/2039     70,000 71,774
Chicago, IL, General Obligation, “A”, 5%, 1/01/2044     210,000 213,337
Chicago, IL, General Obligation, “A”, 5.5%, 1/01/2049     275,000 282,830
Chicago, IL, General Obligation, “D”, 5.5%, 1/01/2033     70,000 70,478
Chicago, IL, Metropolitan Pier & Exposition Authority Rev. (McCormick Place Expansion Project), Capital Appreciation, “A”, AGM, 0%, 12/15/2056     220,000 42,063
Chicago, IL, O'Hare International Airport Rev., Senior Lien, “A”, 5%, 1/01/2048     140,000 142,149
Chicago, IL, O'Hare International Airport Rev., Senior Lien, “A”, 5%, 1/01/2053     75,000 75,827
Chicago, IL, O'Hare International Airport Rev., Senior Lien, “A”, 5.5%, 1/01/2055     560,000 592,466
Cook County, IL, Community College District No. 508 (City Colleges), BAM, 5%, 12/01/2047     455,000 461,439
Illinois Finance Authority Rev. (Lake Forest College), “A”, 5.25%, 10/01/2052     280,000 275,280
Illinois Finance Authority Rev. (Plymouth Place, Inc.), “A”, 6.75%, 5/15/2058     250,000 258,595
Illinois Finance Authority, Health Services Facility Lease Rev. (Provident Group - UIC Surgery Center LLC - University of Illinois Health Services Facility Project), 4%, 10/01/2050     230,000 198,855
Illinois Housing Development Authority Rev. “A”, GNMA, 4.9%, 4/01/2047     485,000 486,871
Lincolnshire, IL, Special Service Area No. 1 (Sedgebrook Project), 6.25%, 3/01/2034     116,000 116,058
Romeoville, IL, Rev. (Lewis University Project), “A”, 5%, 10/01/2042     130,000 121,748
Romeoville, IL, Rev. (Lewis University Project), “B”, 5%, 10/01/2039     60,000 57,071
Romeoville, IL, Rev. (Lewis University Project), “B”, 4.125%, 10/01/2041     45,000 37,220
Romeoville, IL, Rev. (Lewis University Project), “B”, 4.125%, 10/01/2046     50,000 39,505
St. Clair County, IL, Cahokia Community Unit School District No. 187, General Obligation, “B”, AGM, 5%, 1/01/2044     175,000 180,041
State of Illinois, General Obligation, 5.5%, 5/01/2039     495,000 535,738
State of Illinois, General Obligation, 5.75%, 5/01/2045     475,000 513,173
State of Illinois, General Obligation, AGM, 5%, 2/01/2027     95,000 95,082
11
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Illinois - continued
State of Illinois, General Obligation, “A”, 5.5%, 3/01/2047   $ 560,000 $602,064
        $8,350,459
Indiana - 3.3%
Fishers, IN, Town Hall Building Corp., Lease Rental Rev., “A”, BAM, 5.75%, 1/15/2063   $ 350,000 $389,145
Indiana Finance Authority Rev. (Marquette Project), “A”, 5%, 3/01/2030     40,000 40,098
Indiana Finance Authority Rev. (Marquette Project), “A”, 5%, 3/01/2039     100,000 98,253
Indiana Finance Authority, Educational Facilities Rev. (Rose-Hulman Institute of Technology Project), 5.75%, 6/01/2053     145,000 156,148
Indiana Finance Authority, Educational Facilities Rev. (Valparaiso University Project), 4%, 10/01/2034     20,000 18,600
Indiana Finance Authority, Environmental Refunding Rev. (Duke Energy Indian, Inc. Project), “A-2”, 4.5%, 5/01/2035 (Put Date 6/01/2032)     425,000 417,593
Indiana Finance Authority, Health Facilities Rev. (Baptist Healthcare System Obligated Group), 5%, 8/15/2051     295,000 295,001
Indiana Finance Authority, Hospital Rev. (Reid Health), AGM, 5%, 1/01/2052     495,000 506,365
Indiana Finance Authority, Student Housing Rev. (CHF - Tippecanoe LLC - Student Housing Project), “A”, 5.375%, 6/01/2064     120,000 122,233
Indianapolis, IN, Local Public Improvement Bond Bank Senior Rev. (Convention Center Hotel), “E”, BAM, 5.25%, 3/01/2067     180,000 189,048
Indianapolis, IN, Local Public Improvement Bond Bank Subordinate Rev. (Convention Center Hotel), “E”, 6.125%, 3/01/2057     35,000 37,886
        $2,270,370
Iowa - 0.3%
Iowa Higher Education Loan Authority, Private College Facility Rev. (Des Moines University Project), 4.75%, 10/01/2042   $ 20,000 $19,985
Iowa Higher Education Loan Authority, Private College Facility Rev. (Des Moines University Project), 5%, 10/01/2047     20,000 20,090
Iowa Higher Education Loan Authority, Private College Facility Rev. (Des Moines University Project), 5.375%, 10/01/2052     20,000 20,416
Iowa Student Loan Liquidity Corp. Rev., “C”, 3.5%, 12/01/2044     170,000 131,914
        $192,405
12
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Kansas - 1.3%
Coffeyville, KS, Electric Utility System Rev., “B”, NPFG, 5%, 6/01/2038 (Prerefunded 6/01/2025) (n)   $ 300,000 $303,252
Coffeyville, KS, Electric Utility System Rev., “B”, NPFG, 5%, 6/01/2042 (Prerefunded 6/01/2025) (n)     100,000 101,084
Hutchinson, KS, Hospital Facilities Rev. (Hutchinson Regional Medical Center, Inc.), 5%, 12/01/2036     45,000 42,357
Hutchinson, KS, Hospital Facilities Rev. (Hutchinson Regional Medical Center, Inc.), 5%, 12/01/2041     45,000 39,447
Wichita, KS, Health Care Facilities Rev. (Presbyterian Manors, Inc.), “I”, 5%, 5/15/2038     100,000 84,260
Wyandotte County/Kansas City, KS, Community College Auxiliary Enterprise System Rev., 4%, 9/01/2052     140,000 124,052
Wyandotte County/Kansas City, KS, Unified Government Community Improvement District Sales Tax Rev. (Legends Apartments Garage & West Lawn Project), 4.5%, 6/01/2040     20,000 19,033
Wyandotte County/Kansas City, KS, Unified Government Utility System Improvement Rev., “A”, 5%, 9/01/2044     195,000 195,062
        $908,547
Kentucky - 0.9%
Kentucky Economic Development Finance Authority Hospital Rev. (Baptist Healthcare System), “B”, 5%, 8/15/2041   $ 230,000 $232,975
Kentucky Economic Development Finance Authority Hospital Rev. (Baptist Healthcare System), “B”, 5%, 8/15/2046     135,000 135,530
Kentucky Higher Education Student Loan Corp. Rev., “B-1”, 5%, 6/01/2036     250,000 250,222
        $618,727
Louisiana - 1.6%
Louisiana Local Government, Environmental Facilities & Community Development Authority, Healthcare Refunding Rev. (St. James Place of Baton Rouge Project), “A”, 6.25%, 11/15/2045   $ 240,000 $232,291
Louisiana Public Facilities Authority Rev. (Loyola University Project), 5.25%, 10/01/2046     450,000 468,655
Louisiana Public Facilities Authority Rev. (Provident Group - HSC Properties, Inc., LSU Health Foundation, New Orleans Project), “A-1”, 5.1%, 1/01/2057 (n)     445,000 390,244
        $1,091,190
13
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Maine - 1.0%
Maine Finance Authority, Student Loan Rev. (Supplemental Education Loan Program), “A”, AGM, 5%, 12/01/2045   $ 365,000 $363,495
Maine Health & Higher Educational Facilities Authority Rev., “A”, AGM, 4.375%, 7/01/2053     375,000 357,225
        $720,720
Maryland - 0.9%
Maryland Economic Development Corp., Subordinate Parking Facilities Rev. (Baltimore City Project), “C”, 4%, 6/01/2038   $ 10,000 $8,737
Maryland Economic Development Corp., Subordinate Parking Facilities Rev. (Baltimore City Project), “C”, 4%, 6/01/2048     20,000 15,728
Maryland Economic Development Corp., Subordinate Parking Facilities Rev. (Baltimore City Project), “C”, 4%, 6/01/2058     70,000 52,092
Maryland Health & Higher Educational Facilities Authority Rev. (Doctors Community Hospital), “A”, 5%, 7/01/2033     100,000 101,404
Maryland Health & Higher Educational Facilities Authority Rev. (Doctors Community Hospital), “A”, 5%, 7/01/2038     280,000 281,004
Maryland Stadium Authority Rev., Baltimore City Public Schools Construction & Revitalization Program, Capital Appreciation, “C”, 0%, 5/01/2053     630,000 142,250
Rockville, MD, Mayor & Council Economic Development Refunding Rev. (Ingleside at King Farm Project), “A-1”, 5%, 11/01/2037     10,000 9,894
Rockville, MD, Mayor & Council Economic Development Rev. (Ingleside at King Farm Project), “B”, 5%, 11/01/2042     15,000 14,188
Rockville, MD, Mayor & Council Economic Development Rev. (Ingleside at King Farm Project), “B”, 5%, 11/01/2047     15,000 13,633
        $638,930
Massachusetts - 6.5%
Massachusetts Bay Transportation Authority, Sales Tax Rev., “A-1”, 5.25%, 7/01/2029   $ 350,000 $384,504
Massachusetts Development Finance Agency Rev. (Boston Medical Center), “G”, 4.375%, 7/01/2052     80,000 75,269
Massachusetts Development Finance Agency Rev. (Milford Regional Medical Center), “F”, 5.75%, 7/15/2043     40,000 38,760
Massachusetts Development Finance Agency Rev. (Newbridge on the Charles, Inc.), 5%, 10/01/2057 (n)     100,000 96,842
Massachusetts Development Finance Agency Rev. (UMass Memorial Health Care Obligated Group), “K”, 5%, 7/01/2038     80,000 81,035
Massachusetts Development Finance Agency Rev. (Wellforce, Inc.), “A”, 5%, 7/01/2044     35,000 33,691
Massachusetts Educational Financing Authority, Education Loan Rev., “J”, 3.5%, 7/01/2033     2,550,000 2,434,479
14
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Massachusetts - continued
Massachusetts Educational Financing Authority, Education Loan Subordinate Rev., “C”, 3%, 7/01/2051   $ 80,000 $52,073
Massachusetts Educational Financing Authority, Education Loan Subordinate Rev., “C”, 4.125%, 7/01/2052     250,000 201,129
Massachusetts Educational Financing Authority, Education Loan Subordinate Rev., “D”, 5%, 7/01/2054 (w)     130,000 125,493
Massachusetts Port Authority Refunding Rev., “B”, 5%, 7/01/2038     750,000 795,466
Tisbury, MA, General Obligation, Municipal Purpose Loan, Unlimited Tax, 3%, 8/15/2047     145,000 113,985
Tisbury, MA, General Obligation, Municipal Purpose Loan, Unlimited Tax, 3%, 8/15/2052     90,000 67,389
        $4,500,115
Michigan - 4.4%
Board of Regents of Eastern Michigan University, General Rev., “A”, 4%, 3/01/2047   $ 240,000 $219,848
Michigan Building Authority Rev. (Facilities Program), 4%, 10/15/2052     40,000 36,733
Michigan Finance Authority ACT 38 Facilities Senior Rev. (Henry Ford Health Detroit Utility Plant Project), 4.375%, 2/28/2054     30,000 28,880
Michigan Finance Authority ACT 38 Facilities Senior Rev. (Henry Ford Health Detroit Utility Plant Project), 5.5%, 2/28/2057     25,000 26,848
Michigan Finance Authority Hospital Rev. (Henry Ford Health System), 3.25%, 11/15/2042     570,000 437,111
Michigan Technological University Board of Trustees, General Rev., “A”, AGM, 5.25%, 10/01/2052     1,675,000 1,751,532
Wayne County, MI, Airport Authority Rev. (Detroit Metropolitan Wayne County Airport), “D”, AGM, 5%, 12/01/2040     570,000 576,206
        $3,077,158
Minnesota - 0.6%
Duluth, MN, Economic Development Authority Rev. (Benedictine Health System), “A”, 4%, 7/01/2041   $ 55,000 $43,797
Duluth, MN, Economic Development Authority, Health Care Facilities Rev. (Essentia Health), “A”, 4.25%, 2/15/2043     75,000 70,998
Duluth, MN, Economic Development Authority, Health Care Facilities Rev. (Essentia Health), “A”, 5%, 2/15/2043     105,000 106,567
Duluth, MN, Economic Development Authority, Health Care Facilities Rev. (Essentia Health), “A”, 4.25%, 2/15/2048     85,000 79,889
Duluth, MN, Economic Development Authority, Health Care Facilities Rev. (Essentia Health), “A”, 5%, 2/15/2048     85,000 85,624
        $386,875
15
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Mississippi - 2.4%
Medical Center, Educational Building Corp. Rev. (Colony Park Teaching Campus), “A”, 4%, 6/01/2053   $ 580,000 $532,934
Mississippi Development Bank Special Obligation (Jackson Water and Sewer System Rev. Bond Project), AGM, 6.875%, 12/01/2040     90,000 90,305
Mississippi Home Corp., Single Family Mortgage Rev., “C”, GNMA, 4.65%, 12/01/2048     1,000,000 1,001,273
        $1,624,512
Missouri - 2.4%
Jackson County, MO, Special Obligations, “A”, 5.25%, 12/01/2058   $ 1,160,000 $1,229,504
Kansas City, MO, Industrial Development Authority, Airport Rev. (Kansas City International Airport Terminal Modernization Project), “B”, 5%, 3/01/2054     435,000 440,737
        $1,670,241
Nebraska - 0.2%
Central Plains Energy Project, NE, Gas Project Rev. (Project No. 3), “A”, 5%, 9/01/2036   $ 105,000 $109,803
Nevada - 0.1%
Reno, NV, Sales Tax Rev. (Retrac-Reno Transportation Rail Access Corridor Project), “B”, AGM, 4%, 6/01/2048   $ 20,000 $18,751
Reno, NV, Sales Tax Rev. (Retrac-Reno Transportation Rail Access Corridor Project), “B”, AGM, 4.125%, 6/01/2058     25,000 23,184
        $41,935
New Hampshire - 0.8%
National Finance Authority, NH, Lease Rev. (NCCD - UNR Properties LLC - University of Nevada, Reno Project), “A”, BAM, 5.25%, 6/01/2051   $ 95,000 $101,169
National Finance Authority, NH, Municipal Certificates, “1-A”, 4.375%, 9/20/2036     285,852 273,717
New Hampshire National Finance Authority Municipal Certificates, “2-A”, 4%, 10/20/2036     191,822 177,723
        $552,609
New Jersey - 3.2%
Atlantic City, NJ, Tax Appeal Refunding Bonds (Qualified Pursuant to the Provisions of the Municipal Qualified Bond Act), “B”, AGM, 5%, 3/01/2037   $ 80,000 $82,079
Camden County, NJ, Improvement Authority, School Rev. (KIPP Cooper Norcross Academy), 6%, 6/15/2062     95,000 100,288
New Jersey Economic Development Authority Rev. (Goethals Bridge Replacement Project), 5.5%, 1/01/2027     40,000 40,038
16
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
New Jersey - continued
New Jersey Economic Development Authority Rev. (Goethals Bridge Replacement Project), 5%, 1/01/2028   $ 40,000 $40,020
New Jersey Economic Development Authority Rev. (Goethals Bridge Replacement Project), 5.375%, 1/01/2043     225,000 225,085
New Jersey Economic Development Authority Rev. (Goethals Bridge Replacement Project), AGM, 5%, 1/01/2031     115,000 115,192
New Jersey Economic Development Authority Rev. (Goethals Bridge Replacement Project), AGM, 5.125%, 7/01/2042     35,000 35,001
New Jersey Economic Development Authority, Special Facilities Rev. (Continental Airlines, Inc.), “A”, 5.625%, 11/15/2030     155,000 156,294
New Jersey Higher Education Student Assistance Authority, Senior Student Loan Rev., “B”, 4%, 12/01/2041     560,000 530,923
New Jersey Higher Education Student Assistance Authority, Senior Student Loan Rev., ”B“, 3.5%, 12/01/2039     155,000 146,278
New Jersey Higher Education Student Assistance Authority, Senior Student Loan Rev., ”C“, 3.25%, 12/01/2051     20,000 14,074
New Jersey Higher Education Student Assistance Authority, Student Loan Refunding Rev., “C”, 5%, 12/01/2053     40,000 38,233
New Jersey Housing & Mortgage Finance Agency, Multi-Family Conduit Rev. (Riverview Towers Apartments), “B”, GNMA, 5.25%, 12/20/2065     305,663 310,222
New Jersey Transportation Trust Fund Authority, “AA”, 4.25%, 6/15/2044     260,000 255,030
New Jersey Transportation Trust Fund Authority, “AA”, 4%, 6/15/2045     70,000 66,318
New Jersey Transportation Trust Fund Authority, “CC”, 5.5%, 6/15/2050     70,000 75,941
        $2,231,016
New York - 17.4%
Build NYC Resource Corp. Rev. (Albert Einstein School of Medicine, Inc.), 5.5%, 9/01/2045 (n)   $ 405,000 $405,278
Build NYC Resource Corp. Rev. (Grand Concourse Academy Charter School Project), “B”, 5%, 7/01/2062     75,000 72,513
Build NYC Resource Corp. Rev. (KIPP NYC Public Schools Facilities - Canal West Project), 5.25%, 7/01/2052     1,000,000 1,020,675
Genesse County, NY, Funding Corp. Rev. (Rochester Regional Health Project), Tax-Exempt, “A”, 5.25%, 12/01/2052     280,000 285,125
Long Beach, NY, General Obligation, “B”, BAM, 4.625%, 7/15/2052     250,000 253,792
New York City Water Finance Authority, Water and Sewer System Second General Resolution Rev., “CC-1”, 5.25%, 6/15/2054     1,355,000 1,475,049
New York Dormitory Authority Rev., State Personal Income Tax, “A”, 4%, 3/15/2048     450,000 425,901
17
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
New York - continued
New York Liberty Development Corp. Rev. (Goldman Sachs Headquarters), 5.25%, 10/01/2035   $ 1,725,000 $1,957,197
New York Liberty Development Corp., Liberty Rev. (3 World Trade Center Project), “1”, 5%, 11/15/2044 (n)     800,000 801,390
New York Transportation Development Corp., Special Facilities Rev. (American Airlines, Inc. John F. Kennedy International Airport Project), 3%, 8/01/2031     40,000 37,348
New York Transportation Development Corp., Special Facilities Rev. (American Airlines, Inc. John F. Kennedy International Airport Project), 5.375%, 8/01/2036     285,000 300,725
New York Transportation Development Corp., Special Facilities Rev. (Delta Airlines, Inc. LaGuardia Airport Terminals C&D Redevelopment Project), 5%, 1/01/2031     320,000 329,936
New York Transportation Development Corp., Special Facilities Rev. (Delta Airlines, Inc. LaGuardia Airport Terminals C&D Redevelopment Project), 5%, 10/01/2040     200,000 207,155
New York Transportation Development Corp., Special Facilities Rev. (Delta Airlines, Inc. LaGuardia Airport Terminals C&D Redevelopment Project), 4.375%, 10/01/2045     385,000 373,658
New York Transportation Development Corp., Special Facilities Rev. (John F. Kennedy International Airport New Terminal One Project), 6%, 6/30/2054     465,000 509,740
New York Transportation Development Corp., Special Facilities Rev. (John F. Kennedy International Airport New Terminal One Project), AGM, 5.125%, 6/30/2060     680,000 701,251
New York Transportation Development Corp., Special Facilities Rev. (Terminal 4 John F. Kennedy International Airport Project), “A”, 4%, 12/01/2038     50,000 48,264
New York, NY, Housing Development Corp., Housing Impact (Sustainable Development Bonds), “A”, 4.8%, 2/01/2053     165,000 165,919
New York, NY, Housing Development Corp., Multi-Family Housing Rev. (8 Spruce Street), “E”, 3.5%, 2/15/2048     272,516 271,531
New York, NY, Housing Development Corp., Multi-Family Housing Rev. (8 Spruce Street), “F”, 4.5%, 2/15/2048     570,000 567,945
New York, NY, Housing Development Corp., Multi-Family Housing Rev., “G”, 4.95%, 11/01/2058     505,000 511,976
New York, NY, Mortgage Agency Homeowner Rev., 4.7%, 10/01/2038     140,000 140,254
Niagara, NY, Area Development Corp. Rev. (Catholic Health System, Inc. Project), 4.5%, 7/01/2052     105,000 78,810
Port Authority of NY & NJ (234th Series), 5.5%, 8/01/2052     355,000 379,104
Syracuse, NY, Industrial Development Agency PILOT Rev. (Carousel Center Project), “A”, 5%, 1/01/2031     110,000 83,044
18
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
New York - continued
Syracuse, NY, Industrial Development Agency PILOT Rev. (Carousel Center Project), “A”, 5%, 1/01/2035   $ 215,000 $161,569
Tobacco Settlement Asset Securitization Corp., NY, “A”, 5%, 6/01/2041     385,000 390,336
Westchester County, NY, Local Development Corp. Rev. (Westchester Medical Center Obligated Group Project), AGM, 5%, 11/01/2047     40,000 42,426
Westchester County, NY, Local Development Corp. Rev. (Westchester Medical Center Obligated Group Project), AGM, 5.75%, 11/01/2048     75,000 84,481
        $12,082,392
North Carolina - 1.7%
Greater Asheville, NC, Regional Airport Authority System Rev., AGM, 5.25%, 7/01/2048   $ 20,000 $21,087
North Carolina Education Assistance Authority, Student Loan Rev., “A”, 5%, 6/01/2043     40,000 38,922
North Carolina Medical Care Commission, Health Care Facilities First Mortgage Rev. (Lutheran Services for the Aging), “A”, 4%, 3/01/2036     35,000 31,484
North Carolina Medical Care Commission, Health Care Facilities First Mortgage Rev. (Lutheran Services for the Aging), “A”, 4%, 3/01/2041     10,000 8,343
North Carolina Medical Care Commission, Health Care Facilities First Mortgage Rev. (Lutheran Services for the Aging), “A”, 4%, 3/01/2051     130,000 96,127
North Carolina Medical Care Commission, Health Care Facilities First Mortgage Rev. (Lutheran Services for the Aging), “C”, 4%, 3/01/2036     15,000 13,493
North Carolina Medical Care Commission, Health Care Facilities Rev. (Novant Health Obligated Group), “A”, 4%, 11/01/2052     270,000 252,256
North Carolina Turnpike Authority, Triangle Expressway System Senior Lien Rev., “A”, AGM, 5%, 1/01/2058     655,000 688,528
        $1,150,240
North Dakota - 0.9%
Grand Forks, ND, Healthcare System Rev. (Altru Health System), “A”, AGM, 5%, 12/01/2053   $ 45,000 $45,779
Horace, ND, Temporary Refunding Improvement, “B”, 4%, 1/01/2025     590,000 588,363
        $634,142
Ohio - 4.3%
Buckeye, OH, Tobacco Settlement Financing Authority Senior Asset-Backed Refunding, 2020B-2, “2”, 5%, 6/01/2055   $ 500,000 $447,356
Cuyahoga County, OH, Hospital Rev. (Metrohealth System), 4.75%, 2/15/2047     220,000 209,755
Cuyahoga County, OH, Hospital Rev. (Metrohealth System), 5.5%, 2/15/2057     580,000 586,038
Cuyahoga County, OH, Metropolitan Housing Authority, General Rev. (2045 Initiative Project), 2%, 12/01/2031     75,000 59,691
19
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Ohio - continued
Miami County, OH, Hospital Facilities Rev. (Kettering Health), “A”, 5%, 8/01/2049   $ 405,000 $406,360
Middleburg Heights, OH, Hospital Facilities Improvement Rev. (Southwest General Health Center Project), “A”, 4%, 8/01/2041     90,000 84,687
Ohio Air Quality Development Authority Refunding Rev. (Duke Energy Corp. Project), “A”, 4.25%, 11/01/2039 (Put Date 6/01/2027)     80,000 79,673
Ohio Higher Educational Facility Commission Rev. (Cleveland Institute of Music 2022 Project), 5.125%, 12/01/2042     70,000 69,088
Ohio Housing Finance Agency Multi-Family Mortgage-Backed, (Macarthur Park Apartments Project), “A”, FNMA, 4.5%, 5/01/2039     316,987 314,007
Ohio Housing Finance Agency Residential Mortgage Rev. (Mortgage-Backed Securities Program), “A”, 4.9%, 9/01/2053     345,000 347,026
Ohio Tax Exempt Private Activity (Portsmouth Bypass Project), AGM, 5%, 12/31/2035     395,000 396,685
        $3,000,366
Oklahoma - 2.6%
Norman, OK, Regional Hospital Authority Rev., 4%, 9/01/2045   $ 85,000 $67,738
Norman, OK, Regional Hospital Authority Rev., 5%, 9/01/2045     45,000 43,323
Oklahoma Development Finance Authority, Health System Rev. (OU Medicine Project), “A”, 5.5%, 8/15/2041     185,000 185,880
Oklahoma Development Finance Authority, Health System Rev. (OU Medicine Project), “A”, 5.5%, 8/15/2044     185,000 188,047
Oklahoma Development Finance Authority, Health System Rev. (OU Medicine Project), “B”, 5%, 8/15/2038     50,000 50,582
Oklahoma Development Finance Authority, Health System Rev. (OU Medicine Project), “B”, 5.25%, 8/15/2043     30,000 30,644
Oklahoma Development Finance Authority, Health System Rev. (OU Medicine Project), “B”, 5.25%, 8/15/2048     50,000 50,716
Oklahoma Development Finance Authority, Health System Rev. (OU Medicine Project), “B”, 5.5%, 8/15/2057     165,000 168,147
Tulsa County, OK, Industrial Authority, Senior Living Community Refunding Rev. (Montereau, Inc. Project), “A”, 5.25%, 11/15/2045     1,050,000 1,034,033
        $1,819,110
Oregon - 0.5%
Multnomah County, OR, Hospital Facilities Authority Refunding Rev. (Terwilliger Plaza - Parkview Project), “B-1”, 1.2%, 6/01/2028   $ 20,000 $17,719
Union County, OR, Hospital Facility Authority Rev. (Grande Ronde Hospital Project), 5%, 7/01/2047     70,000 67,147
Union County, OR, Hospital Facility Authority Rev. (Grande Ronde Hospital Project), 5%, 7/01/2052     160,000 151,488
Yamhill County, OR, Hospital Authority Rev. (Friendsview Retirement), “A”, 5%, 11/15/2056     155,000 118,650
20
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Oregon - continued
Yamhill County, OR, Hospital Authority Rev. (Friendsview Retirement), “B-1”, 2.5%, 11/15/2028   $ 20,000 $18,094
        $373,098
Pennsylvania - 9.3%
Allegheny County, PA, Hospital Development Authority Rev. (Allegheny Health Network Obligated Group), “A”, 4%, 4/01/2044   $ 555,000 $511,392
Berks County, PA, Industrial Development Authority Health System Rev. (Tower Health Project), 5%, 11/01/2047     585,000 295,246
Berks County, PA, Industrial Development Authority Health System Rev. (Tower Health Project), 5%, 11/01/2050     140,000 70,633
Dallas, PA, Municipal Authority, University Rev. (Misericordia University Project), 5%, 5/01/2048     20,000 17,411
Doylestown, PA, Hospital Authority Rev., 5.375%, 7/01/2039     100,000 100,265
Doylestown, PA, Hospital Authority Rev., “A”, 4%, 7/01/2045     20,000 16,154
Lehigh County, PA, Water & Sewer Authority Rev. (Allentown Concession), Capital Appreciation, “B”, 0%, 12/01/2036     940,000 534,791
Montgomery County, PA, Higher Education & Health Authority Rev. (Thomas Jefferson University), “B”, AGM, 3.125%, 5/01/2053     75,000 54,701
Montgomery County, PA, Industrial Development Authority Retirement Communities Rev. (Acts Retirement - Life Communities, Inc. Obligated Group), “C”, 5%, 11/15/2045     80,000 81,009
Montgomery County, PA, Industrial Development Authority Rev. (Whitemarsh Continuing Care Retirement Community Project), 5.375%, 1/01/2050     205,000 177,558
Pennsylvania Economic Development Financing Authority Rev. (Presbyterian Senior Living Project), “B-1”, 5.25%, 7/01/2049     105,000 106,862
Pennsylvania Economic Development Financing Authority Rev. (Rapid Bridge Replacement Project), 5%, 12/31/2038     1,000,000 1,001,201
Pennsylvania Economic Development Financing Authority, Guaranteed Parking Rev. (Capitol Region Parking System), Capital Appreciation, “B-2”, 0%, 1/01/2044     375,000 145,860
Pennsylvania Economic Development Financing Authority, Guaranteed Parking Rev. (Capitol Region Parking System), Capital Appreciation, “B-3”, 0%, 1/01/2049     175,000 33,064
Pennsylvania Economic Development Financing Authority, Private Activity Rev. (PennDOT Major Bridges Package One Project), 5.25%, 6/30/2053     350,000 362,198
Pennsylvania Economic Development Financing Authority, Private Activity Rev. (PennDOT Major Bridges Package One Project), AGM, 5.5%, 6/30/2042     290,000 316,691
21
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Pennsylvania - continued
Pennsylvania Economic Development Financing Authority, Private Activity Rev. (PennDOT Major Bridges Package One Project), AGM, 5%, 12/31/2057   $ 405,000 $414,630
Pennsylvania Economic Development Financing Authority, Private Activity Rev. (Pennsylvania Rapid Bridge Replacement Project), 5%, 6/30/2042     365,000 358,770
Pennsylvania Higher Educational Assistance Agency, Education Loan Rev., “1C”, 5%, 6/01/2051     78,000 75,187
Pennsylvania Higher Educational Assistance Agency, Education Loan Rev., “A”, 4.5%, 6/01/2043     225,000 221,864
Pennsylvania Housing Finance Agency, Single Family Mortgage Rev., “141A”, 5.75%, 10/01/2053     342,811 358,763
Pennsylvania Housing Finance Agency, Single Family Mortgage Rev., “142A”, 5.5%, 10/01/2053     215,000 223,729
Pennsylvania Public School Building Authority, College Rev. (Delaware County Community College Project), BAM, 5.25%, 10/01/2044     110,000 116,082
Philadelphia, PA, Authority for Industrial Development Charter School Rev. (Green Woods Charter School Project), “A”, 5.375%, 6/15/2057     100,000 95,972
Philadelphia, PA, Authority for Industrial Development Rev. (Thomas Jefferson University), “A”, 5%, 9/01/2042     645,000 651,043
Pittsburgh, PA, Urban Redevelopment Authority Rev., “C”, GNMA, 4.8%, 4/01/2028     45,000 45,020
West Shore, PA, Area Authority Rev. (Messiah Village Project), “A”, 5%, 7/01/2030     30,000 30,011
West Shore, PA, Area Authority Rev. (Messiah Village Project), “A”, 5%, 7/01/2035     35,000 34,560
        $6,450,667
Puerto Rico - 5.6%
AES Puerto Rico LP, Taxable, 12.5%, 12/15/2025   $ 46,565 $45,168
Commonwealth of Puerto Rico, General Obligation Restructured Bonds, “A”, 4%, 7/01/2041     280,000 259,328
Puerto Rico Electric Power Authority Refunding Rev., “DDD”, 5%, 7/01/2020 (a)(d)     15,000 3,938
Puerto Rico Electric Power Authority Refunding Rev., “DDD”, 5%, 7/01/2021 (a)(d)     15,000 3,938
Puerto Rico Electric Power Authority Rev., “A”, 5%, 7/01/2029 (a)(d)     10,000 2,625
Puerto Rico Electric Power Authority Rev., “AAA”, 5.25%, 7/01/2021 (a)(d)     25,000 6,563
Puerto Rico Electric Power Authority Rev., “AAA”, 5.25%, 7/01/2030 (a)(d)     10,000 2,625
22
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Puerto Rico - continued
Puerto Rico Electric Power Authority Rev., “CCC”, 5.25%, 7/01/2027 (a)(d)   $ 35,000 $9,187
Puerto Rico Electric Power Authority Rev., “NN”, NPFG, 4.75%, 7/01/2033     40,000 38,765
Puerto Rico Electric Power Authority Rev., “TT”, 5%, 7/01/2021 (a)(d)     60,000 15,750
Puerto Rico Electric Power Authority Rev., “TT”, 5%, 7/01/2027 (a)(d)     10,000 2,625
Puerto Rico Electric Power Authority Rev., “TT”, 5%, 7/01/2032 (a)(d)     685,000 179,812
Puerto Rico Electric Power Authority Rev., “VV”, NPFG, 5.25%, 7/01/2025     25,000 24,864
Puerto Rico Electric Power Authority Rev., “VV”, NPFG, 5.25%, 7/01/2029     175,000 172,393
Puerto Rico Electric Power Authority Rev., “VV”, NPFG, 5.25%, 7/01/2030     205,000 201,543
Puerto Rico Electric Power Authority Rev., “WW”, 5.375%, 7/01/2022 (a)(d)     10,000 2,625
Puerto Rico Electric Power Authority Rev., “WW”, 5.25%, 7/01/2025 (a)(d)     25,000 6,562
Puerto Rico Electric Power Authority Rev., “WW”, 5%, 7/01/2028 (a)(d)     575,000 150,937
Puerto Rico Electric Power Authority Rev., “ZZ”, 5.25%, 7/01/2024 (a)(d)     30,000 7,875
Puerto Rico Electric Power Authority Rev., “ZZ”, 5.25%, 7/01/2026 (a)(d)     90,000 23,625
Puerto Rico Electric Power Authority Rev., Taxable, “EEE”, 6.05%, 7/01/2032 (a)(d)     70,000 18,375
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority (AES Puerto Rico Project), 6.625%, 1/01/2027     26,280 25,851
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Control Facilities Financing Authority (AES Puerto Rico Project), 6.625%, 1/01/2028     200,433 196,710
Puerto Rico Municipal Finance Agency, “A”, AGM, 5%, 8/01/2027     10,000 10,064
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., “2019A-1”, 4.55%, 7/01/2040     29,000 29,175
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., “2019A-1”, 4.75%, 7/01/2053     69,000 68,246
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., “2019A-1”, 5%, 7/01/2058     1,816,000 1,810,026
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., “2019A-2”, 4.329%, 7/01/2040     194,000 192,728
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., “2019A-2”, 4.536%, 7/01/2053     1,000 956
23
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Puerto Rico - continued
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., “2019A-2”, 4.784%, 7/01/2058   $ 153,000 $150,892
Puerto Rico Sales Tax Financing Corp., Restructured Sales Tax Rev., Capital Appreciation, “2019A-1”, 0%, 7/01/2046     527,000 167,861
University of Puerto Rico Rev., “P”, NPFG, 5%, 6/01/2025     30,000 30,030
        $3,861,662
Rhode Island - 0.9%
Rhode Island Student Loan Authority, Education Loan Rev., “A”, 4.125%, 12/01/2042   $ 565,000 $529,785
Rhode Island Student Loan Authority, Student Loan Rev., ”A“, 3.625%, 12/01/2037     130,000 119,593
        $649,378
South Carolina - 0.7%
South Carolina Jobs & Economic Development Authority Rev. (Bishop Gadsden Episcopal Retirement Community), “A”, 5%, 4/01/2044   $ 130,000 $125,086
South Carolina Jobs & Economic Development Authority, Educational Facilities Rev. (Green Charter Schools Project), “A”, 4%, 6/01/2046 (n)     100,000 72,772
South Carolina Jobs & Economic Development Authority, Hospital Rev. (Prisma Health Obligated Group), “A”, 5%, 5/01/2048     270,000 270,692
        $468,550
Tennessee - 3.6%
Knox County, TN, Health, Educational & Housing Facility Board Rev. (University Health Systems, Inc.), 5%, 4/01/2030   $ 50,000 $50,671
Knox County, TN, Health, Educational & Housing Facility Board, Student Housing Rev. (Provident Group - UTK Properties LLC - University of Tennessee Project), “A-1”, BAM, 5.5%, 7/01/2059     80,000 85,260
Knox County, TN, Health, Educational & Housing Facility Board, Student Housing Rev. (Provident Group - UTK Properties LLC - University of Tennessee Project), “B-1”, BAM, 5.25%, 7/01/2064 (w)     185,000 191,667
Metropolitan Nashville, TN, Airport Authority Improvement Rev., “B”, 5.5%, 7/01/2052     150,000 159,847
Nashville and Davidson County, TN, Health & Education Facilities, Board of Metropolitan Government, Multi-Family Tax-Exempt Mortgage-Backed (Ben Allen Ridge Apartments Project), “A”, 4.75%, 2/01/2048     234,178 227,526
Tennergy Corp., TN, Gas Supply Rev., “A”, 5.5%, 10/01/2053 (Put Date 12/01/2030)     515,000 544,619
Tennessee Energy Acquisition Corp., Gas Project Rev., “A”, 5.25%, 9/01/2026     610,000 622,153
Tennessee Energy Acquisition Corp., Gas Project Rev., “C”, 5%, 2/01/2025     185,000 184,756
24
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Tennessee - continued
Tennessee Housing Development Agency, Residential Finance Program, “2A”, 4.7%, 7/01/2053   $ 450,000 $443,790
        $2,510,289
Texas - 17.7%
Arlington, TX, Higher Education Finance Corp. Education Rev. (Trinity Basin Preparatory, Inc.), Texas PSF, 4.25%, 8/15/2047   $ 250,000 $245,806
Arlington, TX, Higher Education Finance Corp. Rev. (Riverwalk Education Foundation, Inc.), 5%, 8/15/2057     125,000 130,406
Austin, TX, Airport System Rev., 5%, 11/15/2052     185,000 189,994
Clifton, TX, Higher Education Finance Corp. Rev. (Idea Public Schools), 5%, 8/15/2042     330,000 330,627
Conroe, TX, Local Government Corp., First Lien Hotel Rev. (Convention Center Hotel), “A”, 4%, 10/01/2050     45,000 30,226
Conroe, TX, Local Government Corp., Second Lien Hotel Rev. (Convention Center Hotel), “B”, 5%, 10/01/2050 (n)     100,000 75,220
Cypress-Fairbanks, TX, Independent School District, Unlimited Tax School Building, Texas PSF, 4%, 2/15/2048     55,000 52,346
Dallas, TX, Senior Lien Special Tax Rev. (Fair Park Venue Project), 6.25%, 8/15/2053 (Put Date 8/15/2028)     160,000 161,000
Denton County, TX, Northlake Municipal Management District No. 2, AGM, 4.5%, 3/01/2044     1,125,000 1,093,105
Fort Bend County, TX, Municipal Utility District No. 170, Taxable, BAM, 4.375%, 9/01/2039     1,080,000 1,072,468
Galveston County, TX, Municipal Utility District No. 56, AGM, 4.5%, 6/01/2047     500,000 494,825
Gulf Coast, TX, Industrial Development Authority Rev. (CITGO Petroleum Corp.), 8%, 4/01/2028     250,000 250,238
Harris County, TX, Cultural Education Facilities Finance Corp., Hospital Rev. (Memorial Hermann Health System), “A”, 4.125%, 7/01/2052     230,000 209,912
Harris County-Houston, TX, Sports Authority Rev., “C”, 5%, 11/15/2032     20,000 20,032
Harris County-Houston, TX, Sports Authority Rev., “C”, 5%, 11/15/2033     40,000 40,064
Harris County-Houston, TX, Sports Authority Rev., Capital Appreciation, “A”, AGM, 0%, 11/15/2041     70,000 30,031
Harris County-Houston, TX, Sports Authority Rev., Capital Appreciation, “A”, AGM, 0%, 11/15/2046     210,000 67,572
Houston, TX, Airport System Refunding Rev., Subordinate Lien, “A”, AGM, 5.25%, 7/01/2053     180,000 188,344
Houston, TX, Airport System Rev., Special Facilities Rev. (United Airlines, Inc. Terminal Improvement Projects), “B-1”, 5%, 7/15/2030     100,000 100,309
25
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Texas - continued
Houston, TX, Higher Education Finance Corp. University Rev. (Houston Baptist University Project), 4%, 10/01/2051   $ 30,000 $22,984
Kaufman County, TX, Fresh Water Supply District No. 4A, BAM, 4.5%, 9/01/2045     1,000,000 989,832
Matagorda County, TX, Navigation District No. 1 (Houston Lighting), AAC, 5.125%, 11/01/2028     2,000,000 2,033,647
Montgomery County, TX, Water Control & Improvement District No. 1, BAM, 4.625%, 3/01/2043     1,115,000 1,117,965
Port Beaumont, TX, Navigation District, Dock & Wharf Facility Rev., Taxable (Jefferson Gulf Coast Energy Project), “A”, 6%, 1/01/2025 (n)     100,000 98,693
Red River, TX, Education Finance Corp., Higher Education Rev. (Houston Baptist University Project), 5.5%, 10/01/2046     160,000 159,474
Tarrant County, TX, Cultural Education Facilities Finance Corp., Retirement Facility Rev. (Barton Creek Senior Living Center, Inc., Querencia Project), 5%, 11/15/2035     60,000 58,318
Tarrant County, TX, Cultural Education Facilities Finance Corp., Retirement Facility Rev. (Stayton at Museum Way), 5.75%, 12/01/2054 (a)(d)     539,834 340,096
Tarrant County, TX, Cultural Education Facilities Finance Corp., Retirement Facility Rev. (Trinity Terrace Project), “A-1”, 5%, 10/01/2044     120,000 112,398
Texas Department of Housing & Community Affairs, Single Family Mortgage Rev., “A”, GNMA, 5.25%, 9/01/2053     435,000 446,324
Texas Private Activity Surface Transportation Corp., Senior Lien Rev. (NTE Mobility Partners Segments 3 LLC), 5.5%, 6/30/2043     180,000 192,240
Texas State Technical College System Rev., Financing System Improvement, “A”, AGM, 6%, 8/01/2054     170,000 190,550
Texas Transportation Commission, State Highway 249 System Rev., “A”, 5%, 8/01/2057     165,000 166,417
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2037     20,000 11,037
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2038     10,000 5,188
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2039     15,000 7,314
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2040     15,000 6,887
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2041     30,000 13,008
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2042     40,000 16,383
Texas Transportation Commission, State Highway 249 System Rev., Capital Appreciation, “A”, 0%, 8/01/2043     35,000 13,508
26
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Texas - continued
Texas Water Development Board, Water Implementation Rev., 5%, 10/15/2057   $ 1,000,000 $1,048,998
Tomball, TX, Independent School District, Unlimited Tax School Building, Texas PSF, 3.875%, 2/15/2043     500,000 459,529
        $12,293,315
Utah - 0.6%
Salt Lake City, UT, Airport Rev. (Salt Lake City International Airport), “A”, 5%, 7/01/2043   $ 265,000 $268,241
Utah Charter School Finance Authority, Charter School Rev. (Da Vinci Academy of Science & Arts), 4%, 4/15/2047     165,000 144,185
Utah Charter School Finance Authority, Charter School Rev. (Summit Academy, Inc.), “A”, 5%, 4/15/2049     20,000 20,174
        $432,600
Vermont - 0.2%
Vermont Student Assistance Corp., Education Loan Rev., “A”, 4.375%, 6/15/2040   $ 130,000 $122,197
Virginia - 2.7%
Henrico County, VA, Economic Development Authority Rev., Residential Care Facility (Westminster-Canterbury of Richmond), “A”, 5%, 10/01/2052   $ 50,000 $50,966
Virginia Beach, VA, Development Authority, Residential Care Facility Rev. (Westminster - Canterbury on Chesapeake Bay), “A”, 7%, 9/01/2059     285,000 316,124
Virginia Housing Development Authority, Rental Housing, “D”, 4.875%, 8/01/2065     920,000 918,188
Williamsburg, VA, Economic Development Authority Student Housing Rev. (Provident Group - Williamsburg Properties LLC - William & Mary Project), “A”, AGM, 5.25%, 7/01/2053     560,000 598,813
        $1,884,091
Washington - 1.2%
Everett, WA, Housing Authority Refunding Rev. (Huntington Park Apartments Project), 4%, 7/01/2037   $ 300,000 $283,866
Grays Harbor County, WA, Public Hospital District No. 2, Limited Tax General Obligation Refunding, 5%, 12/15/2033     80,000 80,845
Grays Harbor County, WA, Public Hospital District No. 2, Limited Tax General Obligation Refunding, 5%, 12/15/2038     100,000 98,743
Grays Harbor County, WA, Public Hospital District No. 2, Limited Tax General Obligation Refunding, 5%, 12/15/2048     195,000 177,590
Seattle, WA, Port Intermediate Lien Refunding Rev., “B”, 4%, 8/01/2047     35,000 31,169
27
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Washington - continued
Seattle, WA, Port Rev., 4%, 4/01/2044   $ 60,000 $54,818
Washington Health Care Facilities Authority Rev. (Virginia Mason Medical Center), 4%, 8/15/2042     140,000 118,768
        $845,799
Wisconsin - 8.2%
Wisconsin Center District Junior Dedicated Tax Rev., Capital Appreciation, “D”, AGM, 0%, 12/15/2040   $ 405,000 $187,124
Wisconsin Center District Senior Dedicated Tax Rev., Capital Appreciation, “C”, AGM, 0%, 12/15/2040     175,000 80,465
Wisconsin Health & Educational Facilities Authority Rev. (Aspirusm, Inc. Obligated Group), 4%, 8/15/2048     700,000 641,497
Wisconsin Health & Educational Facilities Authority Rev. (Bellin Memorial Hospital, Inc.), “A”, 5.5%, 12/01/2052     130,000 139,854
Wisconsin Health & Educational Facilities Authority Rev. (St. Camillus Health System, Inc.), “A”, 5%, 11/01/2054     325,000 260,341
Wisconsin Housing & Economic Development Authority Housing Rev., “A”, 4.8%, 11/01/2048     215,000 217,033
Wisconsin Housing & Economic Development Authority Housing Rev., “A”, 4.9%, 11/01/2053     205,000 206,917
Wisconsin Housing & Economic Development Authority Housing Rev., “A”, 4.95%, 11/01/2057     230,000 232,605
Wisconsin Public Finance Authority Airport Facilities Rev. (Transportation Infrastructure Properties LLC), “B”, 5%, 7/01/2042     65,000 64,696
Wisconsin Public Finance Authority Education Rev. (Triad Educational Services, Inc.), 5.5%, 6/15/2062     85,000 84,985
Wisconsin Public Finance Authority Health Care System Rev. (Cone Health), “A”, 5%, 10/01/2052     420,000 438,025
Wisconsin Public Finance Authority Healthcare Facility Rev. (Appalachian Regional Healthcare System Obligated Group), “A”, 4%, 7/01/2051     70,000 51,441
Wisconsin Public Finance Authority Hospital Rev. (WakeMed), “A”, 4%, 10/01/2049     700,000 639,436
Wisconsin Public Finance Authority Hotel & Conference Center Facilities Rev. (Foundation of the University of North Carolina at Charlotte, Inc.), “A”, 4%, 9/01/2051 (n)     255,000 184,863
Wisconsin Public Finance Authority Limited Obligation Grant Rev. (American Dream at Meadowlands Project), “A”, 6.25%, 8/01/2027 (a)(d)(n)     255,000 198,900
Wisconsin Public Finance Authority Limited Obligation PILOT Rev. (American Dream at Meadowlands Project), 7%, 12/01/2050     100,000 97,879
Wisconsin Public Finance Authority Project Rev. (Eastern Michigan University Student Housing Project), “A-1”, 5.625%, 7/01/2055     635,000 683,575
28
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Municipal Bonds - continued
Wisconsin - continued
Wisconsin Public Finance Authority Retirement Facilities First Mortgage Rev. (United Methodist Retirement Homes), “A”, 4%, 10/01/2051   $ 35,000 $30,093
Wisconsin Public Finance Authority Rev. (Obligated Group of National Senior Communities, Inc.), 4%, 1/01/2047     195,000 169,373
Wisconsin Public Finance Authority Rev. (Obligated Group of National Senior Communities, Inc.), 4%, 1/01/2052     330,000 275,029
Wisconsin Public Finance Authority Senior Living Refunding Bonds Rev. (Mary's Woods at Marylhurst Project), “A”, 5.25%, 5/15/2037 (n)     35,000 34,739
Wisconsin Public Finance Authority Senior Living Refunding Bonds Rev. (Mary's Woods at Marylhurst Project), “A”, 5.25%, 5/15/2042 (n)     10,000 9,574
Wisconsin Public Finance Authority Senior Living Refunding Bonds Rev. (Mary's Woods at Marylhurst Project), “A”, 5.25%, 5/15/2047 (n)     115,000 105,933
Wisconsin Public Finance Authority Senior Living Refunding Bonds Rev. (Mary's Woods at Marylhurst Project), “A”, 5.25%, 5/15/2052 (n)     65,000 58,349
Wisconsin Public Finance Authority Senior Secured Rev. (McLemore Hotel & Conference Center), “A”, 4.5%, 6/01/2056 (n)     155,000 122,083
Wisconsin Public Finance Authority Student Housing Rev. (Beyond Boone LLC - Appalachian State University Project), “A”, AGM, 5%, 7/01/2044     15,000 15,239
Wisconsin Public Finance Authority Student Housing Rev. (CHF - Manoa LLC UH Residences for Graduate Students), “A”, 5.75%, 7/01/2063 (n)     165,000 174,252
Wisconsin Public Finance Authority Student Housing Rev. (University of Hawai'i Foundation Project), “A-1”, 4%, 7/01/2061 (n)     125,000 97,907
Wisconsin Public Finance Authority, Multi-Family Affordable Housing Certificates (Dominium Holdings I), “B-1”, 6.81%, 4/28/2036     195,000 196,268
        $5,698,475
Total Municipal Bonds (Identified Cost, $113,825,029)   $110,742,954
Other Municipal Bonds – 0.7%
Multi-Family Housing Revenue – 0.7%  
Affordable Housing Pass-Thru Trust Certificates, 6%, 10/05/2040    $ 315,686 $324,058
FRETE 2021-ML12 Trust, “X-US”, FHLMC, 1.225%, 7/25/2041  (i)(n)     366,438 34,772
FRETE 2023-ML16 Trust, “X-CA”, 4.632%, 7/25/2038      138,991 142,824
Total Other Municipal Bonds (Identified Cost, $487,212)   $501,654
Bonds – 0.1%
Transportation - Services – 0.1%  
Toll Road Investors Partnership II LP, Capital Appreciation, NPFG, 0%, 2/15/2033 (n) (Identified Cost, $78,892)   $ 120,000 $59,595
29
Portfolio of Investments (unaudited) – continued
Issuer     Shares/Par Value ($)
Preferred Stocks – 0.0%        
Utilities - Electric Power – 0.0%        
AES Guayama Holdings B.V. (u) (Identified Cost, $11,461)     4,408 $11,461
Investment Companies (h) - 0.9%
Money Market Funds – 0.9%  
MFS Institutional Money Market Portfolio, 5.38% (v) (Identified Cost, $621,630)     621,629 $621,691
Other Assets, Less Liabilities - 1.7%   1,230,591
Remarketable Variable Rate MuniFund Term Preferred Shares (RVMTP shares), at liquidation value of $43,800,000 net of unamortized debt issuance costs of $1,308 (issued by the fund) - (63.1)% (43,798,692)
Net assets applicable to common shares - 100.0%   $69,369,254
    
(a) Non-income producing security.
(d) In default.
(h) An affiliated issuer, which may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. At period end, the aggregate values of the fund's investments in affiliated issuers and in unaffiliated issuers were $621,691 and $111,315,664, respectively.
(i) Interest only security for which the fund receives interest on notional principal (Par amount). Par amount shown is the notional principal and does not reflect the cost of the security.
(n) Securities exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be sold in the ordinary course of business in transactions exempt from registration, normally to qualified institutional buyers. At period end, the aggregate value of these securities was $7,657,075, representing 11.0% of net assets applicable to common shares.
(u) The security was valued using significant unobservable inputs and is considered level 3 under the fair value hierarchy. For further information about the fund’s level 3 holdings, please see Note 2 in the Notes to Financial Statements.
(v) Affiliated issuer that is available only to investment companies managed by MFS. The rate quoted for the MFS Institutional Money Market Portfolio is the annualized seven-day yield of the fund at period end.
(w) When-issued security.
    
The following abbreviations are used in this report and are defined:
AAC Ambac Assurance Corp.
AGM Assured Guaranty Municipal
BAM Build America Mutual
COP Certificate of Participation
FHLMC Federal Home Loan Mortgage Corp.
FNMA Federal National Mortgage Assn.
GNMA Government National Mortgage Assn.
NPFG National Public Finance Guarantee Corp.
PSF Permanent School Fund
30
Financial Statements
Statement of Assets and Liabilities
At 5/31/24 (unaudited)
This statement represents your fund’s balance sheet, which details the assets and liabilities comprising the total value of the fund.
Assets  
Investments in unaffiliated issuers, at value (identified cost, $114,402,594) $111,315,664
Investments in affiliated issuers, at value (identified cost, $621,630) 621,691
Receivables for  
Investments sold 180,061
Interest 1,601,224
Receivable from investment adviser 11,681
Other assets 14,181
Total assets $113,744,502
Liabilities  
Payables for  
Distributions on common shares $8,139
When-issued investments purchased 317,229
Interest expense and fees 170,700
Payable to affiliates  
Administrative services fee 145
Transfer agent and dividend disbursing costs 293
Payable for independent Trustees' compensation 143
Accrued expenses and other liabilities 79,907
RVMTP shares, at liquidation value of $43,800,000 net of unamortized debt issuance costs of $1,308 43,798,692
Total liabilities $44,375,248
Net assets applicable to common shares $69,369,254
Net assets consist of  
Paid-in capital - common shares $78,374,419
Total distributable earnings (loss) (9,005,165)
Net assets applicable to common shares $69,369,254
RVMTP shares, at liquidation value of $43,800,000 net of unamortized debt issuance costs of $1,308 (438 shares issued and outstanding at $100,000 per share) 43,798,692
Net assets including preferred shares $113,167,946
Common shares of beneficial interest issued and outstanding (unlimited number of shares authorized) 8,199,220
Net asset value per common share (net assets of $69,369,254 / 8,199,220 shares of beneficial interest outstanding) $8.46
See Notes to Financial Statements
31
Financial Statements
Statement of Operations
Six months ended 5/31/24 (unaudited)
This statement describes how much your fund earned in investment income and accrued in expenses. It also describes any gains and/or losses generated by fund operations.
Net investment income (loss)  
Income  
Interest $2,572,288
Dividends from affiliated issuers 48,642
Other 1,397
Total investment income $2,622,327
Expenses  
Management fee $372,098
Transfer agent and dividend disbursing costs 7,290
Administrative services fee 13,320
Independent Trustees' compensation 3,701
Stock exchange fee 11,894
Custodian fee 2,381
Shareholder communications 7,722
Audit and tax fees 49,007
Legal fees 3,739
Interest expense and fees and amortization of RVMTP shares debt issuance costs 1,026,402
Miscellaneous 32,852
Total expenses $1,530,406
Reduction of expenses by investment adviser (91,753)
Net expenses $1,438,653
Net investment income (loss) $1,183,674
Realized and unrealized gain (loss)
Realized gain (loss) (identified cost basis)  
Unaffiliated issuers $(63,791)
Affiliated issuers (268)
Net realized gain (loss) $(64,059)
Change in unrealized appreciation or depreciation  
Unaffiliated issuers $639,311
Affiliated issuers (27)
Net unrealized gain (loss) $639,284
Net realized and unrealized gain (loss) $575,225
Change in net assets from operations $1,758,899
See Notes to Financial Statements
32
Financial Statements
Statements of Changes in Net Assets
These statements describe the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions.
  Six months ended Year ended
  5/31/24
(unaudited) 		11/30/23
Change in net assets    
From operations    
Net investment income (loss) $1,183,674 $2,268,395
Net realized gain (loss) (64,059) (3,767,735)
Net unrealized gain (loss) 639,284 3,072,270
Change in net assets from operations $1,758,899 $1,572,930
Distributions to common shareholders $(1,184,787) $(2,508,051)
Share transactions applicable to common shares    
Change in net assets from the tender and repurchase of common shares of beneficial interest $— $(6,954,765)
Total change in net assets $574,112 $(7,889,886)
Net assets applicable to common shares    
At beginning of period 68,795,142 76,685,028
At end of period $69,369,254 $68,795,142
See Notes to Financial Statements
33
Financial Statements
Statement of Cash Flows
Six months ended 5/31/24 (unaudited)
This statement provides a summary of cash flows from investment activity for the fund.
Cash flows from operating activities:  
Change in net assets from operations $1,758,899
Adjustments to reconcile change in net assets from operations to net cash provided by operating activities:  
Purchase of investment securities (11,000,900)
Proceeds from disposition of investment securities 10,858,016
Proceeds from disposition of short-term investments, net 160,980
Realized gain/loss on investments 63,791
Unrealized appreciation/depreciation on investments (639,284)
Net amortization/accretion of income 76,192
Amortization of RVMTP shares debt issuance costs 23,808
Increase in interest receivable (4,258)
Decrease in accrued expenses and other liabilities (20,968)
Decrease in receivable from investment adviser 1,512
Increase in other assets (12,165)
Increase in payable for interest expense and fees 4,956
Net cash provided by operating activities $1,270,579
Cash flows from financing activities:  
Cash distributions paid on common shares $(1,183,718)
Decrease in payable for common shares tender and repurchase costs (86,861)
Net cash used by financing activities $(1,270,579)
Cash and restricted cash:  
Beginning of period $—
End of period $—
Supplemental disclosure of cash flow information:
Cash paid during the six months ended May 31, 2024 for interest was $997,638.
See Notes to Financial Statements
34
Financial Statements
Financial Highlights
The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate that an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period.
Common Shares Six months
ended 		Year ended
  5/31/24
(unaudited) 		11/30/23 11/30/22 11/30/21 11/30/20 11/30/19
Net asset value, beginning of period $8.39 $8.42 $10.84 $10.76 $10.74 $10.14
Income (loss) from investment operations
Net investment income (loss) (d) $0.14 $0.25 $0.33 $0.41 $0.42 $0.45
Net realized and unrealized gain (loss) 0.07 (0.02) (2.33) 0.13 0.06 0.58
 Total from investment operations  $0.21  $0.23  $(2.00)  $0.54  $0.48  $1.03
Less distributions declared to common shareholders
From net investment income $(0.14) $(0.28) $(0.35) $(0.43) $(0.44) $(0.43)
From net realized gain — — (0.07) (0.03) (0.02) —
 Total distributions declared to shareholders  $(0.14)  $(0.28)  $(0.42)  $(0.46)  $(0.46)  $(0.43)
 Net increase resulting from the tender and repurchase of common shares of beneficial interest  $—  $0.02  $—  $—  $—  $—
 Net asset value, end of period (x)  $8.46  $8.39  $8.42  $10.84  $10.76  $10.74
 Market value, end of period  $7.44  $7.27  $7.30  $9.87  $9.60  $9.85
 Total return at market value (%) 4.32(n) 3.51 (22.36) 7.63 2.26 16.96
 Total return at net asset value (%) (j)(r)(s)(x) 2.79(n) 3.50 (18.41) 5.46 5.12 10.80
Ratios (%) (to average net assets
applicable to common shares) and
Supplemental data:
Expenses before expense reductions 4.33(a) 4.43 2.58 1.84 2.30 2.79
Expenses after expense reductions 4.07(a) 4.26 2.46 1.77 2.18 2.69
Net investment income (loss) 3.35(a) 2.99 3.62 3.73 3.99 4.24
Portfolio turnover 8(n) 34 27 22 27 15
Net assets at end of period (000 omitted) $69,369 $68,795 $76,685 $98,774 $98,014 $97,832
Supplemental Ratios (%):
Ratios of expenses to average net assets applicable to common shares after expense reductions and excluding interest expense and fees (l) 1.17(a) 1.25 1.23 1.16 1.18 1.18
Ratios of expenses to average net assets applicable to common and preferred shares after expense reductions and excluding interest expense and fees (l) 0.72(a) 0.76 0.78 0.78 0.78 0.78
35
Financial Highlights – continued
  Six months
ended 		Year ended
  5/31/24
(unaudited) 		11/30/23 11/30/22 11/30/21 11/30/20 11/30/19
Senior Securities:
RVMTP shares 438 438 488 488 — —
VMTP shares — — — — 1,950 1,950
Asset coverage per preferred share (k) $258,377 $257,067 $257,141 $302,407 $75,263 $75,171
Asset coverage per $1 liquidation
preference (v) 		$2.58 $2.57 $2.57 $3.02 $3.01 $3.01
Involuntary liquidation preference per preferred share (m) $100,000 $100,000 $100,000 $100,000 $25,000 $25,000
Average market value per preferred share (m)(u) $100,000 $100,000 $100,000 $100,000 $25,000 $25,000
    
(a) Annualized.
(d) Per share data is based on average shares outstanding.
(j) Total return at net asset value is calculated using the net asset value of the fund, not the publicly traded price and therefore may be different than the total return at market value.
(k) Calculated by subtracting the fund’s total liabilities (not including liquidation preference of preferred shares) from the fund's total assets and dividing by the total number of preferred shares outstanding.
(l) Interest expense and fees include payments made to the holders of the floating rate certificates, interest expense paid to shareholders of RVMTP and VMTP (Variable Rate Municipal Term Preferred) shares, and amortization of RVMTP and VMTP shares debt issuance costs, as applicable. For the year ended November 30, 2023, the expense ratio also excludes fees and expenses related to the tender and repurchase of a portion of the fund’s common shares of beneficial interest.
(m) Amount excludes accrued unpaid distributions on preferred shares.
(n) Not annualized.
(r) Certain expenses have been reduced without which performance would have been lower.
(s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower.
(u) Average market value represents the approximate fair value of each of the fund’s preferred shares held at period end.
(v) Calculated by subtracting the fund's total liabilities (not including liquidation preference of preferred shares) from the fund's total assets and dividing by the aggregate liquidation preference of preferred shares outstanding.
(x) The net asset values and total returns at net asset value have been calculated on net assets which include adjustments made in accordance with U.S. generally accepted accounting principles required at period end for financial reporting purposes.
See Notes to Financial Statements
36
Notes to Financial Statements
(unaudited) 
(1) Business and Organization
MFS Investment Grade Municipal Trust (the fund) is organized as a Massachusetts business trust and is registered under the Investment Company Act of 1940, as amended, as a diversified closed-end management investment company.
The fund is an investment company and accordingly follows the investment company accounting and reporting guidance of the Financial Accounting Standards Board (FASB) Accounting Standards Codification Topic 946 Financial Services - Investment Companies.
(2) Significant Accounting Policies
General — The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of increases and decreases in net assets from operations during the reporting period. Actual results could differ from those estimates. In the preparation of these financial statements, management has evaluated subsequent events occurring after the date of the fund’s Statement of Assets and Liabilities through the date that the financial statements were issued. The fund invests primarily in municipal instruments, which generally trade in the over-the-counter market. The value of municipal instruments can be affected by changes in their actual or perceived credit quality. The credit quality of, and the ability to pay principal and interest when due by, an issuer of a municipal instrument depends on the credit quality of the entity supporting the municipal instrument, how essential any services supported by the municipal instrument are, the sufficiency of any revenues or taxes that support the municipal instrument, and/or the willingness or ability of the appropriate government entity to approve any appropriations necessary to support the municipal instrument. Municipal instruments may be supported by insurance which typically guarantees the timely payment of all principal and interest due on the underlying municipal instrument. The value of a municipal instrument can be volatile and significantly affected by adverse tax changes or court rulings, legislative or political changes, changes in specific or general market and economic conditions in the region where the instrument is issued, and the financial condition of municipal issuers and of municipal instrument insurers of which there are a limited number. Also, because many municipal instruments are issued to finance similar projects, conditions in certain industries can significantly affect the fund and the overall municipal market. If the Internal Revenue Service determines an issuer of a municipal instrument has not complied with the applicable tax requirements, interest from the security could become taxable, the security could decline in value, and certain distributions made by the fund could be taxable to shareholders. The fund invests in high-yield securities rated below investment grade. Investments in below investment grade quality securities can involve a substantially greater risk of default or can already be in default, and their values can decline significantly. Below investment grade quality securities tend to be more sensitive to adverse news about the issuer, or the market or economy in general, than higher quality debt instruments.
Balance Sheet Offsetting — The fund's accounting policy with respect to balance sheet offsetting is that, absent an event of default by the counterparty or a termination of the agreement, the International Swaps and Derivatives Association (ISDA) Master
37
Notes to Financial Statements (unaudited) - continued 
Agreement, or similar agreement, does not result in an offset of reported amounts of financial assets and financial liabilities in the Statement of Assets and Liabilities across transactions between the fund and the applicable counterparty. The fund's right to setoff may be restricted or prohibited by the bankruptcy or insolvency laws of the particular jurisdiction to which a specific master netting agreement counterparty is subject. Balance sheet offsetting disclosures, to the extent applicable to the fund, have been included in the fund’s Significant Accounting Policies note under the captions for each of the fund’s in-scope financial instruments and transactions.
Investment Valuations — Subject to its oversight, the fund's Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund’s investments to MFS as the fund's adviser, pursuant to the fund’s valuation policy and procedures which have been adopted by the adviser and approved by the Board. In accordance with Rule 2a-5 under the Investment Company Act of 1940, the Board of Trustees designated the adviser as the “valuation designee” of the fund. If the adviser, as valuation designee, determines that reliable market quotations are not readily available for an investment, the investment is valued at fair value as determined in good faith by the adviser in accordance with the adviser’s fair valuation policy and procedures.
Under the fund's valuation policy and procedures, equity securities, including restricted equity securities, are generally valued at the last sale or official closing price on their primary market or exchange as provided by a third-party pricing service. Equity securities, for which there were no sales reported that day, are generally valued at the last quoted daily bid quotation on their primary market or exchange as provided by a third-party pricing service. Debt instruments and floating rate loans, including restricted debt instruments, are generally valued at an evaluated or composite bid as provided by a third-party pricing service. Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which approximates market value.
Open-end investment companies are generally valued at net asset value per share.
Under the fund’s valuation policy and procedures, market quotations are not considered to be readily available for debt instruments, floating rate loans, and many types of derivatives. These investments are generally valued at fair value based on information from third-party pricing services or otherwise determined by the adviser in accordance with the adviser’s fair valuation policy and procedures. Securities and other assets generally valued on the basis of information from a third-party pricing service may also be valued at a broker/dealer bid quotation. In determining values, third-party pricing services can utilize both transaction data and market information such as yield, quality, coupon rate, maturity, type of issue, trading characteristics, spreads and other market data. An investment may also be valued at fair value if the adviser determines that the investment’s value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund’s net asset value, or after the halt of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. The adviser generally relies on third-party pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund’s net asset value can differ depending
38
Notes to Financial Statements (unaudited) - continued 
on the source and method used to determine value. When fair valuation is used, the value of an investment used to determine the fund’s net asset value may differ from quoted or published prices for the same investment. There can be no assurance that the fund could obtain the fair value assigned to an investment if it were to sell the investment at the same time at which the fund determines its net asset value per share.
Various inputs are used in determining the value of the fund's assets or liabilities. These inputs are categorized into three broad levels. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment's level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The fund's assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. Level 1 includes unadjusted quoted prices in active markets for identical assets or liabilities. Level 2 includes other significant observable market-based inputs (including quoted prices for similar securities, interest rates, prepayment speed, and credit risk). Level 3 includes significant unobservable inputs, which may include the adviser's own assumptions in determining the fair value of investments. The following is a summary of the levels used as of May 31, 2024 in valuing the fund's assets and liabilities:
Financial Instruments Level 1 Level 2 Level 3 Total
Equity Securities:        
Netherlands $— $— $11,461 $11,461
Municipal Bonds — 111,244,608 — 111,244,608
U.S. Corporate Bonds — 59,595 — 59,595
Mutual Funds 621,691 — — 621,691
Total $621,691 $111,304,203 $11,461 $111,937,355
For further information regarding security characteristics, see the Portfolio of Investments. 
The following is a reconciliation of level 3 assets for which significant unobservable inputs were used to determine fair value. The table presents the activity of level 3 securities held at the beginning and the end of the period.
  Equity
Securities
Balance as of 11/30/23 $—
Received as part of a corporate action 11,461
Balance as of 5/31/24 $11,461
At May 31, 2024, the fund held one level 3 security.
Statement of Cash Flows — Information on financial transactions which have been settled through the receipt or disbursement of cash or restricted cash is presented in the Statement of Cash Flows. Cash as presented in the fund's Statement of Assets and Liabilities includes cash on hand at the fund's custodian bank and does not include any short-term investments. Restricted cash is presented in the fund's Statement of Assets and Liabilities as restricted cash for uncleared derivatives and/or deposits with brokers for cleared derivatives and represents cash that has been segregated or delivered to cover the fund's collateral or margin obligations under derivative contracts.
39
Notes to Financial Statements (unaudited) - continued 
Indemnifications — Under the fund's organizational documents, its officers and Trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the fund. Additionally, in the normal course of business, the fund enters into agreements with service providers that may contain indemnification clauses. The fund's maximum exposure under these agreements is unknown as this would involve future claims that may be made against the fund that have not yet occurred.
Investment Transactions and Income —  Interest income is recorded on the accrual basis. All premium and discount is amortized or accreted for financial statement purposes in accordance with U.S. generally accepted accounting principles. Dividend and interest payments received in additional securities are recorded on the ex-dividend or ex-interest date in an amount equal to the value of the security on such date. Debt obligations may be placed on non-accrual status or set to accrue at a rate of interest less than the contractual coupon when the collection of all or a portion of interest has become doubtful. Interest income for those debt obligations may be further reduced by the write-off of the related interest receivables when deemed uncollectible.
The fund may receive proceeds from litigation settlements. Any proceeds received from litigation involving portfolio holdings are reflected in the Statement of Operations in realized gain/loss if the security has been disposed of by the fund or in unrealized gain/loss if the security is still held by the fund. Any other proceeds from litigation not related to portfolio holdings are reflected as other income in the Statement of Operations.
Investment transactions are recorded on the trade date.  In determining the net gain or loss on securities sold, the cost of securities is determined on the identified cost basis.
The fund may purchase or sell securities on a when-issued or delayed delivery basis.  In these extended settlement transactions, the receipt or delivery of the securities by the fund and related payments occur at a future date, usually beyond the customary settlement period. The price of such security and the date that the security will be settled are generally fixed at the time the transaction is negotiated. The value of the security varies with market fluctuations and for debt securities no interest accrues to the fund until settlement takes place. When the fund sells securities on a when-issued or delayed delivery basis, the fund typically owns or has the right to acquire securities equivalent in kind and amount to the securities sold. Purchase and sale commitments for when-issued or delayed delivery securities are held at carrying amount, which approximates fair value and are categorized as level 2 within the fair value hierarchy, and included in When-issued investments purchased and When-issued investments sold in the Statement of Assets and Liabilities, as applicable. Losses may arise due to changes in the value of the underlying securities prior to settlement date or if the counterparty does not perform under the contract’s terms, or if the issuer does not issue the securities due to political, economic or other factors.
Legal fees and other related expenses incurred to preserve and protect the value of a security owned are added to the cost of the security; other legal fees are expensed. Capital infusions made directly to the security issuer, which are generally non-recurring, incurred to protect or enhance the value of high-yield debt securities, are reported as additions to the cost basis of the security. Costs that are incurred to negotiate the
40
Notes to Financial Statements (unaudited) - continued 
terms or conditions of capital infusions or that are expected to result in a plan of reorganization are reported as realized losses. Ongoing costs incurred to protect or enhance an investment, or costs incurred to pursue other claims or legal actions, are expensed.
Tax Matters and Distributions — The fund intends to qualify as a regulated investment company, as defined under Subchapter M of the Internal Revenue Code, and to distribute all of its taxable and tax-exempt income, including realized capital gains. As a result, no provision for federal income tax is required. The fund’s federal tax returns, when filed, will remain subject to examination by the Internal Revenue Service for a three year period. Management has analyzed the fund’s tax positions taken on federal and state tax returns for all open tax years and does not believe that there are any uncertain tax positions that require recognition of a tax liability.
Distributions to shareholders are recorded on the ex-dividend date. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from U.S. generally accepted accounting principles. Certain capital accounts in the financial statements are periodically adjusted for permanent differences in order to reflect their tax character. These adjustments have no impact on net assets or net asset value per share. Temporary differences which arise from recognizing certain items of income, expense, gain or loss in different periods for financial statement and tax purposes will reverse at some time in the future.
Book/tax differences primarily relate to defaulted bonds, amortization of premium and accretion of discount of debt securities, accounting for secured borrowings, and non-deductible expenses that result from the treatment of preferred shares as equity for tax purposes.
The tax character of distributions made during the current period will be determined at fiscal year end. The tax character of distributions declared to shareholders for the last fiscal year is as follows:
  Year ended
11/30/23
Ordinary income (including any short-term capital gains) $238,319
Tax-exempt income 4,340,592
Total distributions $4,578,911
41
Notes to Financial Statements (unaudited) - continued 
The federal tax cost and the tax basis components of distributable earnings were as follows:
As of 5/31/24  
Cost of investments $115,754,212
Gross appreciation 1,968,995
Gross depreciation (5,785,852)
Net unrealized appreciation (depreciation) $(3,816,857)
As of 11/30/23  
Undistributed ordinary income 131,498
Undistributed tax-exempt income 696,798
Capital loss carryforwards (6,379,082)
Other temporary differences (172,814)
Net unrealized appreciation (depreciation) (3,855,677)
The aggregate cost above includes prior fiscal year end tax adjustments, if applicable.
As of November 30, 2023, the fund had capital loss carryforwards available to offset future realized gains. These net capital losses may be carried forward indefinitely and their character is retained as short-term and/or long-term losses. Such losses are characterized as follows:
Short-Term $(1,731,576)
Long-Term (4,647,506)
Total $(6,379,082)
(3) Transactions with Affiliates
Investment Adviser — The fund has an investment advisory agreement with MFS to provide overall investment management and related administrative services and facilities to the fund. The management fee is computed daily and paid monthly at an annual rate of 0.65% of the fund’s average daily net assets (including the value of preferred shares). The investment adviser has agreed in writing to reduce its management fee to 0.63% of the fund’s average daily net assets (including the value of preferred shares). This written agreement will continue until modified by the fund’s Board of Trustees, but such agreement will continue at least until November 30, 2024. For the six months ended May 31, 2024, this management fee reduction amounted to $11,449, which is included in the reduction of total expenses in the Statement of Operations. The management fee incurred for the six months ended May 31, 2024 was equivalent to an annual effective rate of 0.63% of the fund's average daily net assets (including the value of preferred shares).
The investment adviser has agreed in writing to pay a portion of the fund’s total annual operating expenses, excluding interest expense on RVMTP shares, taxes, extraordinary expenses, brokerage and transaction costs, certain tax reclaim recovery expenses (including contingency fees and closing agreement expenses), other interest expense, and investment-related expenses, such that total fund operating expenses do not exceed 0.72% annually of the fund’s average daily net assets (including the value of preferred shares). This written agreement will continue until modified by the fund’s Board of Trustees, but such agreement will continue at least until November 30, 2024. For the six months ended May 31, 2024, this reduction amounted to $80,304, which is included in the reduction of total expenses in the Statement of Operations.
42
Notes to Financial Statements (unaudited) - continued 
Transfer Agent — The fund engages Computershare Trust Company, N.A. (“Computershare”) as the sole transfer agent for the fund's common shares. MFS Service Center, Inc. (MFSC) monitors and supervises the activities of Computershare for an agreed upon fee approved by the Board of Trustees. For the six months ended May 31, 2024, fees paid to MFSC amounted to $1,623.
Administrator – MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to the fund.  Under an administrative services agreement, the fund reimburses MFS the costs incurred to provide these services. The fund is charged an annual fixed amount of $17,500 plus a fee based on average daily net assets (including the value of preferred shares). The administrative services fee is computed daily and paid monthly. The administrative services fee incurred for the six months ended May 31, 2024 was equivalent to an annual effective rate of 0.0233% of the fund’s average daily net assets (including the value of preferred shares).
Trustees’ and Officers’ Compensation — The fund pays compensation to independent Trustees in the form of a retainer, attendance fees, and additional compensation to Board and Committee chairpersons. Independent Trustees’ compensation is accrued daily and paid subsequent to each Trustee Board meeting. The fund does not pay compensation directly to Trustees or officers of the fund who are also officers of the investment adviser, all of whom receive remuneration from MFS for their services to the fund.  Certain officers and Trustees of the fund are officers or directors of MFS and MFSC.
Other — The fund invests in the MFS Institutional Money Market Portfolio which is managed by MFS and seeks current income consistent with preservation of capital and liquidity. This money market fund does not pay a management fee to MFS but does incur investment and operating costs.
During the six months ended May 31, 2024, pursuant to a policy adopted by the Board of Trustees and designed to comply with Rule 17a-7 under the Investment Company Act of 1940 (the “Act”) and relevant guidance, the fund engaged in purchase and sale transactions with funds and accounts for which MFS serves as investment adviser or sub-adviser (“cross-trades”) which amounted to $20,767 and $145,228, respectively. The sales transactions resulted in net realized gains (losses) of $(28,558).
(4) Portfolio Securities
For the six months ended May 31, 2024, purchases and sales of investments, other than short-term obligations, aggregated $9,056,041 and $10,270,281, respectively.
(5) Shares of Beneficial Interest
The fund’s Declaration of Trust permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest. The fund reserves the right to repurchase shares of beneficial interest of the fund subject to Trustee approval.
On October 6, 2023, the fund commenced a cash tender offer for up to 10% of the fund’s outstanding common shares at a price per share equal to 98% of the fund’s net asset value per share calculated at the close of regular trading on the New York Stock Exchange on the expiration date of the offer. This tender offer expired on November 6, 2023, at which time the offer was oversubscribed. The fund purchased the maximum number of shares offered in the tender offer (911,025 common shares representing 10% of the fund’s then outstanding common shares). The purchase price of the
43
Notes to Financial Statements (unaudited) - continued 
properly tendered shares was equal to $7.634 per share for an aggregate purchase price of $6,954,765. As a result of this tender offer, payment was made by the fund on November 15, 2023. The Trustees authorized the tender offer as part of an agreement with a large shareholder of the fund. Pursuant to the agreement, the Trustees also agreed to propose a liquidity event at the fund’s 2025 annual meeting of shareholders, unless the average trading discount of the shares is equal to or less than 7.5% for the entirety of any consecutive 30 calendar day period between November 6, 2023 and July 15, 2025.
During the six months ended May 31, 2024 and the year ended November 30, 2023, the fund did not repurchase any additional shares other than through this tender offer and there were no other transactions in fund shares.
(6) Line of Credit
The fund and certain other funds managed by MFS participate in a $1.45 billion unsecured committed line of credit of which $1.2 billion is reserved for use by the fund and certain other MFS U.S. funds. The line of credit is provided by a syndicate of banks under a credit agreement. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, generally at a rate equal to the highest of 1) Daily Simple SOFR (Secured Overnight Financing Rate) plus 0.10%, 2) the Federal Funds Effective Rate, or 3) the Overnight Bank Funding Rate, each plus an agreed upon spread. A commitment fee, based on the average daily unused portion of the committed line of credit, is allocated among the participating funds. The line of credit expires on March 13, 2025 unless extended or renewed. In addition, the fund and other funds managed by MFS have established unsecured uncommitted borrowing arrangements with certain banks for temporary financing needs. Interest is charged to each fund, based on its borrowings, at rates equal to customary reference rates plus an agreed upon spread. For the six months ended May 31, 2024, the fund’s commitment fee and interest expense were $180 and $0, respectively, and are included in “Interest expense and fees and amortization of RVMTP shares debt issuance costs” in the Statement of Operations.
(7) Investments in Affiliated Issuers
An affiliated issuer may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. For the purposes of this report, the following were affiliated issuers:
Affiliated Issuers Beginning
Value 		Purchases Sales
Proceeds 		Realized
Gain
(Loss) 		Change in
Unrealized
Appreciation or
Depreciation 		Ending
Value
MFS Institutional Money Market Portfolio  $782,698  $10,523,854  $10,684,566  $(268)  $(27)  $621,691
    
Affiliated Issuers Dividend
Income 		Capital Gain
Distributions
MFS Institutional Money Market Portfolio  $48,642  $—
44
Notes to Financial Statements (unaudited) - continued 
(8) Preferred Shares
The fund has 438 shares issued and outstanding of RVMTP shares. The outstanding RVMTP shares are redeemable at the option of the fund in whole or in part at the liquidation preference of $100,000 per share, plus accumulated and unpaid dividends, but generally solely for the purpose of decreasing the leverage of the fund. The RVMTP shares have a stated maturity date of 2051 but are subject to a mandatory early term redemption date at each 42 month anniversary from the original date of issue and subsequent extensions of the RVMTP shares, unless the holder(s) of the RVMTP shares agrees to retain the RVMTP shares. Otherwise, the RVMTP shares are subject to mandatory tender for remarketing to another purchaser. In the event the remarketing is unsuccessful, the RVMTP shares would be subject to redemption at the liquidation preference of $100,000 per share, plus accumulated and unpaid dividends. There is no assurance that the term of the RVMTP shares will be extended or that the RVMTP shares will be replaced with any other preferred shares or other form of leverage upon the redemption of the RVMTP shares. Dividends on the RVMTP shares are cumulative and reset weekly to a fixed spread against the Securities Industry and Financial Markets Association (SIFMA) Municipal Swap Index. During the six months ended May 31, 2024, the dividend rates on the RVMTP shares ranged from 2.90% to 5.55%. For the six months ended May 31, 2024, the average dividend rate was 4.50%.
In the fund’s Statement of Assets and Liabilities, the RVMTP shares aggregate liquidation preference is shown as a liability since they have a stated mandatory redemption date. Dividends paid on the RVMTP shares are treated as interest expense and recorded as incurred. For the six months ended May 31, 2024, interest expense related to the dividends paid on RVMTP shares amounted to $1,008,518 and is included in “Interest expense and fees and amortization of RVMTP shares debt issuance costs” in the Statement of Operations. Costs directly related to the issuance of the RVMTP shares are considered debt issuance costs. Debt issuance costs are presented as a direct deduction from the carrying amount of the related debt liability and are amortized into interest expense over the life of the RVMTP shares. The period-end carrying value for the RVMTP shares in the fund’s Statement of Assets and Liabilities is its liquidation value less any unamortized debt issuance costs, which approximates its fair value. Its fair value would be considered level 2 under the fair value hierarchy.
Under the terms of a purchase agreement between the fund and the investor in the RVMTP shares, the fund is subject to various investment restrictions. These investment-related requirements are in various respects more restrictive than those to which the fund is otherwise subject in accordance with its investment objectives and policies. In addition, the fund is subject to certain restrictions on its investments imposed by guidelines of the rating agency that rates the RVMTP shares, which guidelines may be changed by the applicable rating agency, in its sole discretion, from time to time. These guidelines may impose asset coverage or portfolio composition requirements that are more stringent than those imposed on the fund by the Investment Company Act of 1940 (the “1940 Act”).
The fund is required to maintain certain asset coverage with respect to the RVMTP shares as defined in the fund’s governing documents and the 1940 Act. One of a number of asset coverage-related requirements is that the fund is not permitted to declare or pay common share dividends unless immediately thereafter the fund has a minimum asset coverage ratio of at least 200% with respect to the RVMTP shares after
45
Notes to Financial Statements (unaudited) - continued 
deducting the amount of such common share dividends. The fund may be subject to more stringent asset coverage levels which exceed the requirements under the 1940 Act and may change from time to time as agreed to by the fund and the holders of the RVMTP shares.
The 1940 Act requires that the preferred shareholders of the fund, voting as a separate class, have the right to elect at least two trustees at all times, and elect a majority of the trustees at any time when dividends on the preferred shares are unpaid for two full years. Unless otherwise required by law or under the terms of the preferred shares, each preferred share is entitled to one vote and preferred shareholders will vote together with common shareholders as a single class.
Leverage involves risks and special considerations for the fund’s common shareholders. To the extent that investments are purchased by the fund with proceeds from the issuance of preferred shares, the fund’s net asset value will increase or decrease at a greater rate than a comparable unleveraged fund. Changes in the value of the fund’s portfolio will be borne entirely by the common shareholders. It is possible that the fund will be required to sell assets at a time when it may be disadvantageous to do so in order to redeem preferred shares to comply with asset coverage or other restrictions including those imposed by the 1940 Act and the rating agency that rates the preferred shares. There is no assurance that the fund’s leveraging strategy will be successful.
(9) Subsequent Event
On June 17, 2024, the fund filed a notice with the Securities and Exchange Commission indicating that during the period July 18, 2024 to December 31, 2024 the fund intends to redeem approximately 15% of its outstanding RVMTP Shares, but may redeem less.
46
Report of Independent Registered Public Accounting Firm
To the Shareholders and the Board of Trustees of MFS Investment Grade Municipal Trust
Results of Review of Interim Financial Statements
We have reviewed the accompanying statement of assets and liabilities of MFS Investment Grade Municipal Trust (the “Fund”), including the portfolio of investments, as of May 31, 2024, and the related statements of operations, changes in net assets, cash flows and financial highlights for the six-month period then ended and the related notes (collectively referred to as the “interim financial statements”). Based on our review, we are not aware of any material modifications that should be made to the interim financial statements for them to be in conformity with U.S. generally accepted accounting principles.
We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (“PCAOB”), the statement of changes in net assets for the year ended November 30, 2023 and the financial highlights for each of the five years in the period then ended; and in our report dated January 16, 2024, we expressed an unqualified opinion on those financial statements.
Basis for Review Results
These financial statements are the responsibility of the Fund's management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Fund in accordance with the U.S. federal securities laws and the applicable rules and regulations of the SEC and the PCAOB. We conducted our review in accordance with the standards of the PCAOB. A review of interim financial statements consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.
/s/ Ernst & Young LLP
Boston, Massachusetts
July 16, 2024
47
Proxy Voting Policies and Information
MFS votes proxies on behalf of the fund pursuant to proxy voting policies and procedures that are available without charge, upon request, by calling 1-800-225-2606, by visiting mfs.com/proxyvoting, or by visiting the SEC’s Web site at http://www.sec.gov.
Information regarding how the fund voted proxies relating to portfolio securities during the most recent twelve-month period ended June 30 is available by August 31 of each year without charge by visiting mfs.com/proxyvoting, or by visiting the SEC’s Web site at http://www.sec.gov.
Quarterly Portfolio Disclosure
The fund files a complete schedule of portfolio holdings with the SEC for the first and third quarters of each fiscal year as an exhibit to its reports on Form N-PORT.  The fund’s Form N-PORT reports are available on the SEC’s Web site at  http://www.sec.gov.  A shareholder can obtain the portfolio holdings report for the first and third quarters of the fund's fiscal year at  mfs.com/closedendfunds by choosing the fund's name and then scrolling to the “Resources” section and clicking on the “Reports and Other Documents” tab.
Further Information
From time to time, MFS may post important information about the fund or the MFS Funds on the MFS Web site (mfs.com). This information is available at https://www.mfs.com/announcements or at mfs.com/closedendfunds by choosing the fund's name and then scrolling to the “Resources” section and clicking on the “Announcements” tab, if any.
Additional information about the fund (e.g., performance, dividends and the fund’s price history)  is also available at mfs.com/closedendfunds by choosing the fund's name, if any.
INFORMATION ABOUT FUND CONTRACTS AND LEGAL CLAIMS
The fund has entered into contractual arrangements with an investment adviser, administrator, transfer agent, and custodian who each provide services to the fund. Unless expressly stated otherwise, shareholders are not parties to, or intended beneficiaries of these contractual arrangements, and these contractual arrangements are not intended to create any shareholder right to enforce them against the service providers or to seek any remedy under them against the service providers, either directly or on behalf of the fund.
Under the Trust’s By-Laws, any claims asserted against or on behalf of the MFS Funds, including claims against Trustees and Officers, must be brought in state and federal courts located within the Commonwealth of Massachusetts.
48
CONTACT US
COMPUTERSHARE TRUST COMPANY, N.A.
TRANSFER AGENT, REGISTRAR, AND
DIVIDEND DISBURSING AGENT
CALL
1-800-637-2304
9 a.m. to 5 p.m. Eastern time
WRITE
Computershare Trust Company, N.A.
P.O. Box 43078
Providence, RI 02940-3078
New York Stock Exchange Symbol: CXH

Item 1(b):

A copy of the notice transmitted to the Registrant’s shareholders in reliance on Rule 30e-3 of the Investment Company Act of 1940, as amended that contains disclosure specified by paragraph (c)(3) of Rule 30e-3 is attached hereto as EX-99.30e-3Notice.

ITEM 2. CODE OF ETHICS.

The Registrant has adopted a Code of Ethics (the “Code”) pursuant to Section 406 of the Sarbanes-Oxley Act and as defined in Form N-CSR that applies to the Registrant’s principal executive officer and principal financial and accounting officer. During the period covered by this report, the Registrant has not amended any provision in the Code that relates to an element of the Code’s definition enumerated in paragraph

(b)of Item 2 of this Form N-CSR. During the period covered by this report, the Registrant did not grant a waiver, including an implicit

waiver, from any provision of the Code. David L. DiLorenzo (Principal Executive Officer) and James O. Yost (Principal Financial Officer) were the two persons covered by the Code prior to April 1, 2024. Beginning April 1, 2024, David L. DiLorenzo (Principal Executive Officer) and Kasey L. Phillips (Principal Financial Officer) are the two persons covered by the Code.

A copy of the Code is attached hereto as EX-99.COE.

ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

Not applicable for semi-annual reports.

ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

Not applicable for semi-annual reports.

ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not applicable for semi-annual reports.

ITEM 6. INVESTMENTS

A schedule of investments of the Registrant is included as part of the report to shareholders of the Registrant under Item 1(a) of this Form N-CSR.

ITEM 7. FINANCIAL STATEMENTS AND FINANCIAL HIGHLIGHTS FOR OPEN-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable to the Registrant.

ITEM 8. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS FOR OPEN-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable to the Registrant.

ITEM 9. PROXY DISCLOSURES FOR OPEN-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable to the Registrant.

ITEM 10. RENUMERATION PAID TO DIRECTORS, OFFICERS, AND OTHERS OF OPEN-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable to the Registrant.

ITEM 11. STATEMENT REGARDING BASES FOR APPROVAL OF INVESTMENT ADVISORY CONTRACT.

Not applicable.

ITEM 12. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable for semi-annual reports.

ITEM 13. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

There were no changes during the period.

ITEM 14. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS.

MFS Investment Grade Municipal Trust

 

 

 

 

(c) Total Number of

(d) Maximum Number

 

 

 

 

Shares Purchased as

(or Approximate

 

 

(a) Total number of

(b) Average

Part of Publicly

Dollar Value) of

 

Period

Shares Purchased

Price Paid

Announced Plans or

Shares that May Yet

 

 

 

per Share

Programs

Be Purchased under

 

 

 

 

 

the Plans or Programs

 

 

 

 

 

 

 

12/01/23-12/31/23

0

N/A

0

0

 

01/01/24-01/31/24

0

N/A

0

0

 

02/01/24-02/28/24

0

N/A

0

0

 

03/01/24-03/31/24

0

N/A

0

0

 

04/01/24-04/30/24

0

N/A

0

0

 

05/01/24-05/31/24

0

N/A

0

0

 

Total

0

N/A

0

 

 

 

 

 

 

 

Note: The Board approved procedures to repurchase shares and reviews the results periodically. The notification to shareholders of the program is part of the semi-annual and annual reports sent to shareholders. These annual programs begin on October 1st of each year. The programs conform to the conditions of Rule 10b-18 of the Securities Exchange Act of 1934 and limit the aggregate number of shares that may be purchased in each annual period (October 1 through the following September 30) to 10% of the Registrant’s outstanding shares as of the first day of the plan year (October 1). The aggregate number of shares available for purchase for the October 1, 2023 plan year is 911,025. Section (d) above reflects zero shares available for purchase because 911,025 shares were purchased pursuant to a tender offer dated November 15, 2023. A copy of this offer is attached as an exhibit to this filing.

ITEM 15. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

There were no material changes to the procedures by which shareholders may send recommendations to the Board for nominees to the Registrant’s Board since the Registrant last provided disclosure as to such procedures in response to the requirements of Item 407 (c)(2)(iv) of Regulation S-K or this Item.

ITEM 16. CONTROLS AND PROCEDURES.

(a)Based upon their evaluation of the effectiveness of the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940 (the “Act”)) as conducted within 90 days of the filing date of this report on Form N-CSR, the Registrant’s principal financial officer and principal executive officer have concluded that those disclosure controls and procedures provide reasonable assurance that the material information required to be disclosed by the Registrant on this report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms.

(b)There were no changes in the Registrant’s internal controls over financial reporting (as defined in Rule 30a-3(d) under the Act) that occurred during the period covered by the report that have materially affected, or are reasonably likely to materially affect, the Registrant’s internal control over financial reporting.

ITEM 17. DISCLOSURE OF SECURITIES LENDING ACTIVITIES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES.

Not applicable for semi-annual reports.

ITEM 18. RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION.

Not applicable.

ITEM 19. EXHIBITS.

(a)(1) Any code of ethics, or amendment thereto, that is the subject of the disclosure required by Item 2, to the extent that the registrant intends to satisfy the Item 2 requirements through filing of an exhibit: Attached hereto as EX-99.COE.

(2)A separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2): Attached hereto as EX-99.302CERT.

(3)Any written solicitation to purchase securities under Rule 23c-1 under the Act (17 CFR 270.23c-1) sent or given during the period covered by the report by or on behalf of the registrant to 10 or more persons. Not applicable.

(4)Change in the registrant’s independent public accountant. Not applicable.

(b)If the report is filed under Section 13(a) or 15(d) of the Exchange Act, provide the certifications required by Rule 30a-2(b) under the Act (17 CFR 270.30a-2(b)), Rule 13a-14(b) or Rule 15d-14(b) under the Exchange Act (17 CFR 240.13a-14(b) or 240.15d-14(b)) and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) as an exhibit. A certification furnished pursuant to this paragraph will not be deemed “filed” for the purposes of Section 18 of the Exchange Act (15 U.S.C. 78r), or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Exchange Act, except to the extent that the registrant specifically incorporates it by reference. Attached hereto as EX-99.906CERT.

(c)Registrant’s Rule 30e-3 Notice pursuant to Item 1(b) of Form N-CSR. Attached hereto as EX-99.30e-3Notice.

Notice

A copy of the Amended and Restated Declaration of Trust, as amended, of the Registrant is on file with the Secretary of State of The Commonwealth of Massachusetts and notice is hereby given that this instrument is executed on behalf of the Registrant by an officer of the Registrant as an officer and not individually and the obligations of or arising out of this instrument are not binding upon any of the Trustees or shareholders individually, but are binding only upon the assets and property of the respective constituent series of the Registrant.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and 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)*

/S/ DAVID L. DILORENZO

David L. DiLorenzo, President

Date: July 16, 2024

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By (Signature and Title)*

/S/ DAVID L. DILORENZO

David L. DiLorenzo, President (Principal Executive Officer)

Date: July 16, 2024

By (Signature and Title)*

/S/ KASEY L. PHILLIPS

Kasey L. Phillips, Treasurer (Principal Financial Officer and Accounting Officer) Date: July 16, 2024

* Print name and title of each signing officer under his or her signature.


EX-99.COE

Code of Ethics for Principal Executive and Principal Financial Officers

Effective April 1, 2024

Policy Purpose and Summary

Section 406 of the Sarbanes-Oxley Act requires that each MFS Fund registered under the Investment Company Act of 1940 disclose whether or not it has adopted a code of ethics for senior financial officers, applicable to its principal financial officer and principal accounting officer.

I.Overview

A. Covered Officers/Purpose of the Code

This code of ethics (this “Code”) has been adopted by the funds (collectively, “Funds” and each, “Fund”) under supervision of the MFS Funds Board (the “Board”) and applies to the Funds’ Principal Executive Officer and Principal Financial Officer (the “Covered Officers” each of whom is set forth in Exhibit A) for the purpose of promoting:

•honest and ethical conduct, including the ethical handling of actual or apparent conflicts of interest between personal and professional relationships;

•full, fair, accurate, timely and understandable disclosure in reports and documents that the Funds file with, or submit to, the Securities and Exchange Commission (“SEC”) and in other public communications made by the Funds;

•compliance by the Funds with applicable laws and governmental rules and regulations;

•the prompt internal reporting of violations of the Code to an appropriate person or persons identified in the Code; and

•accountability for adherence to the Code.

B. Conduct Guidelines

Each Covered Officer should adhere to a high standard of business ethics and should be sensitive to situations that may give rise to actual as well as apparent conflicts of interest. In addition, each Covered Officer should not place his or her personal interests ahead of the Funds’ interests and should endeavor to act honestly and ethically. In furtherance of the foregoing, each Covered Officer must:

•not use his or her personal influence or personal relationships improperly to influence investment decisions or financial reporting for any Fund whereby the Covered Officer would benefit personally to the detriment of the Fund; and

•not cause a Fund to take action, or fail to take action, for the individual personal benefit of the Covered Officer rather than the benefit of the Fund.

The following activities, which could create the appearance of a conflict of interest, are permitted only with the approval of the Funds’ Chief Legal Officer (“CLO”):

•service as a director on the board of any “for profit” company other than the board of the Funds' investment adviser or its subsidiaries or board of a pooled investment vehicle sponsored by the Funds' investment adviser or its subsidiaries;

•running for political office;

•the receipt of any Fund business-related gift or any entertainment from any company with which a Fund has current or prospective business dealings unless such gift or entertainment is permitted by the gifts and entertainment policy of the Funds' investment adviser;

•any material ownership interest in, or any consulting or employment relationship with, any Fund service providers (e.g., custodian banks, audit firms), other than the Funds’ investment adviser, principal underwriter, administrator or any affiliated person thereof;

•a direct or indirect financial interest in commissions, transaction charges or spreads paid by a Fund for effecting portfolio transactions or for selling or redeeming shares, other than an interest arising from the Covered Officer’s employment or securities ownership.

C.Disclosure and Compliance

•Each Covered Officer should familiarize himself or herself with the disclosure requirements generally applicable to the Funds;

•each Covered Officer should not knowingly misrepresent, or cause others to misrepresent, facts about a Fund to others, whether within or outside the Fund, including to the Fund’s trustees and auditors, and to governmental regulators and self-regulatory organizations;

•each Covered Officer should, to the extent appropriate within his or her area of Fund responsibility, consult with other officers and employees of the Funds and the adviser with the goal of promoting full, fair, accurate, timely and understandable disclosure in the reports and documents the Funds file with, or submit to, the SEC and in other public communications made by the Funds; and

•it is the responsibility of each Covered Officer to promote compliance within his or her area of Fund responsibility with the standards and restrictions imposed by applicable laws, rules and regulations.

D.Reporting and Accountability

Each Covered Officer must:

•upon adoption of the Code (or thereafter as applicable, upon becoming a Covered Officer), affirm in writing to the Board that he or she has received, read, and understands the Code;

•annually thereafter affirm to the Board that he or she has complied with the requirements of the Code;

•annually report to the CLO affiliations and relationships which are or may raise the appearance of a conflict of interest with the Covered Officer’s duties to the Funds, as identified in the annual Trustee and Officer Questionnaire;

•not retaliate against any other Covered Officer or any officer or employee of the Funds or their affiliated persons for reports of potential violations that are made in good faith; and

•notify the CLO promptly if he or she knows of any violation of this Code. Failure to do so is itself a violation of this Code.

The CLO is responsible for applying this Code to specific situations in which questions are presented under it, granting waivers upon consultation with the Board or its designee, investigating violations, and has the authority to interpret this Code in any particular situation. The CLO will report requests for waivers to the Board (or a designee thereof) promptly upon receipt of a waiver request and will periodically report to the Board any approvals granted since the last report.

The CLO will take all appropriate action to investigate any potential violations reported to him or her and to report any violations to the Board. If the Board concurs that a violation has occurred, it will consider appropriate action, which may include review of, and appropriate modifications to, applicable policies and procedures; notification to appropriate personnel of the investment adviser or its board; or a recommendation to dismiss the Covered Officer.

Any changes to or waivers of this Code will, to the extent required, be disclosed as provided by SEC rules.

E. Confidentiality

All reports and records prepared or maintained pursuant to this Code and under the direction of the CLO will be considered confidential and shall be maintained and protected accordingly. Except as otherwise required by law or this Code, such matters shall not be disclosed to anyone other than the Funds’ Board, its counsel, counsel to the Board’s independent trustees and senior management and the board of directors of the Fund’s investment adviser and its counsel.

F. Internal Use

The Code is intended solely for the internal use by the Funds and does not constitute an admission, by or on behalf of any Fund, as to any fact, circumstance, or legal conclusion.

II.Supervision

The Board of Trustees of the Funds, including a majority of the Trustees who are not “interested persons” (as defined in the 1940 Act) of the Funds, shall review no less frequently than annually, a report from the CLO regarding the affirmations of the principal executive officer and the principal financial officer as to compliance with this Code.

III.Interpretation and Escalation

Breaches of the Code are reviewed by the CLO and communicated to the Board of Trustees of the affected Fund(s). Interpretations of this Policy shall be made from time to time by the CLO, as needed, and questions regarding the application of this Policy to a specific set of facts are escalated to the CLO.

IV. Authority

Section 406 of the Sarbanes-Oxley Act.

V.Monitoring

Adherence to this policy is monitored by the CLO.

VI.

Related Policies

 

This Code shall be the sole code of ethics adopted by the Funds for purposes of

 

Section 406 of the Sarbanes-Oxley Act and the rules and forms applicable to

 

registered investment companies thereunder. Insofar as other policies or procedures

 

of the Funds, the Funds’ adviser, principal underwriter, or other service providers

 

govern or purport to govern the behavior or activities of the Covered Officers who

 

are subject to this Code, they are superseded by this Code to the extent that they

 

overlap or conflict with the provisions of this Code. The Funds’ and their investment

 

adviser’s codes of ethics under Rule 17j-1 under the Investment Company Act and

 

any other codes or policies or procedures adopted by the Funds or their investment

 

adviser or other service providers are separate requirements and are not part of this

 

Code.

VII.

Amendment

 

Any amendments to this Code, other than amendments to Exhibit A, must be

 

approved or ratified by a majority vote of the Board, including a majority of

 

independent trustees.

VIII.

Recordkeeping

 

All required books, records and other documentation shall be retained in accordance

 

with MFS’ related record retention policy.

Additional procedures may need to be implemented by departments to properly comply with this policy.

Exhibit A

As of April 1, 2024

Persons Covered by this Code of Ethics

Funds’ Principal Executive Officer: David L. DiLorenzo

Funds’ Principal Financial Officer: Kasey L. Phillips


EX-99.302CERT

MFS INVESTMENT GRADE MUNICIPAL TRUST

Certification Pursuant to Section 302 of the Sarbanes-Oxley Act

I, Kasey L. Phillips, certify that:

1.I have reviewed this report on Form N-CSR of MFS Investment Grade Municipal Trust;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures as of a date within 90 days prior to the filing date of this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the period covered by the report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: July 16, 2024

/S/ KASEY L. PHILLIPS

Kasey L. Phillips

Treasurer (Principal Financial Officer and Accounting Officer)

EX-99.302CERT

MFS INVESTMENT GRADE MUNICIPAL TRUST

Certification Pursuant to Section 302 of the Sarbanes-Oxley Act

I, David L. DiLorenzo, certify that:

1.I have reviewed this report on Form N-CSR of MFS Investment Grade Municipal Trust;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations, changes in net assets, and cash flows (if the financial statements are required to include a statement of cash flows) of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) and internal control over financial reporting (as defined in Rule 30a-3(d) under the Investment Company Act of 1940) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures as of a date within 90 days prior to the filing date of this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the period covered by the report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize, and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: July 16, 2024

/S/ DAVID L. DILORENZO

David L. DiLorenzo

President (Principal Executive Officer)


EX-99.906CERT

MFS INVESTMENT GRADE MUNICIPAL TRUST

Certification Pursuant to Section 906 of the Sarbanes-Oxley Act

I, Kasey L. Phillips, certify that, to my knowledge:

1.The Form N-CSR (the “Report”) of MFS Investment Grade Municipal Trust (the “Registrant”) fully complies for the period covered by the Report with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

Date: July 16, 2024

/S/ KASEY L. PHILLIPS

Kasey L. Phillips

Treasurer (Principal Financial Officer and Accounting Officer)

A signed original of this written statement required by Section 906 has been provided to the Registrant and will be retained by the Registrant and furnished to the Securities and Exchange Commission or its staff upon request.

EX-99.906CERT

MFS INVESTMENT GRADE MUNICIPAL TRUST

Certification Pursuant to Section 906 of the Sarbanes-Oxley Act

I, David L. DiLorenzo, certify that, to my knowledge:

1.The Form N-CSR (the “Report”) of MFS Investment Grade Municipal Trust (the “Registrant”) fully complies for the period covered by the Report with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

Date: July 16, 2024

/S/ DAVID L. DILORENZO

David L. DiLorenzo

President (Principal Executive Officer)

A signed original of this written statement required by Section 906 has been provided to the Registrant and will be retained by the Registrant and furnished to the Securities and Exchange Commission or its staff upon request.


EX-99.30e-3Notice

MFS Investment Grade Municipal Trust

Thank you for being a shareholder. You are encouraged to access and review this important report containing information about the fund, including portfolio holdings and financial statements.

The report is available at:

closedendfunds.mfs.com

This report is available by mail or email upon request free of charge. Reports for the prior reporting period and the fund's portfolio holdings for its most recent fi rst and third fiscal quarters are also available online and in print by request.

Current and future report delivery requests can be submitted at any time using the options in the right panel.

Why am I receiving this Notice?

The Securities and Exchange Commission adopted new rule 30e-3, which, among other things, allows mutual fund companies to deliver shareholder reports by making such reports accessible at a website address. You still may elect to receive a paper copy of the current report and/or any future reports by following the instructions on the panel on the right-hand side.

001CD80003 : CCS-Letter-75GSM-Plain-white-20/50#

An Important Report to Shareholders is Now Available Online and In Print by Request

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smartphone to access your report:

Or download your report

using the link in the left panel.

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(781) 575-2879

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(781) 575-2879

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Computershare Trust Company, N.A.

P.O. Box 505005

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In accordance with Section 23(c) of the Investment Company Act of 1940, the fund hereby gives notice that it may from time to time repurchase shares of the fund in the open market at the option of the Board of Trustees and on such terms as the Trustees shall determine.

03DCCB


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