Edgar Filing: MFS HIGH INCOME MUNICIPAL TRUST

MFS HIGH INCOME MUNICIPAL TRUST N-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF

REGISTERED MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-5754

MFS HIGH INCOME MUNICIPAL TRUST

(Exact name of registrant as specified in charter)

500 Boylston Street, Boston, Massachusetts 02116

(Address of principal executive offices) (Zip code)

Susan S. Newton

Massachusetts Financial Services Company

500 Boylston Street

Boston, Massachusetts 02116

(Name and address of agents for service)

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

Date of fiscal year end: November 30

Date of reporting period: August 31, 2008

ITEM 1.

SCHEDULE OF INVESTMENTS.

LOGO

MFS High Income Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08


Issuer	Shares/Par		Value ($)
Municipal Bonds – 164.0%
Airport & Port Revenue – 4.0%
Branson, MO, Regional Airport Transportation Development District Airport Rev., “B”, 6%, 2037	$	610,000	$	500,088
Denver, CO, City & County Airport, “B”, ETM, 6.125%, 2025 (c)		2,840,000		2,864,139
Denver, CO, City & County Airport, “C”, ETM, 6.125%, 2025 (c)		2,280,000		2,638,985
New York, NY, City Industrial Development Authority Rev. (Terminal One Group Assn.), 5.5%, 2021		750,000		768,090
			$	6,771,302
General Obligations – General Purpose – 0.7%
New York, NY, “H”, 6%, 2017	$	5,000	$	5,033
Puerto Rico Government Development Bank, “B”, 5%, 2015		700,000		716,596
State of California, 5.25%, 2023		380,000		404,555
			$	1,126,184
General Obligations - Schools – 1.9%
Irving, TX, Independent School District, “A”, PSF, 0%, 2018	$	1,000,000	$	666,559
Montebello, CA, Unified School District, FSA, 0%, 2021		1,435,000		755,713
Montebello, CA, Unified School District, 0%, 2023		1,505,000		703,150
Placer, CA, Unified School District, “A”, FGIC, 0%, 2019		1,700,000		1,004,699
			$	3,130,121
Healthcare Revenue – Hospitals – 32.0%
Allegheny County, PA, Hospital Development Authority Rev. (West Penn Allegheny Health), “A”, 5%, 2028	$	565,000	$	398,646
Allegheny County, PA, Hospital Development Authority Rev. (West Penn Allegheny Health), “A”, 5.375%, 2040		835,000		582,804
Brunswick, GA, Hospital Authority Rev. (Glynn-Brunswick Memorial Hospital), 5.625%, 2034		220,000		216,015
California Statewide Communities Development Authority Rev. (Catholic Healthcare West) “K”, ASSD GTY, 5.5%, 2041		1,545,000		1,575,157
California Statewide Communities Development Authority Rev. (Catholic Healthcare West) “L”, ASSD GTY, 5.25%, 2041		1,130,000		1,132,283
California Statewide Communities Development Authority Rev. (Children’s Hospital), 5%, 2047		375,000		302,700
California Statewide Communities Development Authority Rev. (St. Joseph Health System), FGIC, 5.75%, 2047		745,000		766,329
California Statewide Communities Development Authority Rev. (Sutter Health), “B”, 5.25%, 2048		1,500,000		1,453,695
Cass County, MO, Hospital Rev., 5.625%, 2038		235,000		211,773
Conway, AR, Hospital Rev. (Conway Regional Medical Center), “A”, 6.4%, 2029		425,000		428,434
Conway, AR, Hospital Rev. (Conway Regional Medical Center), “B”, 6.4%, 2029		1,000,000		1,008,080
Delaware County, PA, Authority Rev. (Mercy Health Corp.), ETM, 6%, 2016 (c)		835,000		906,576
Delaware County, PA, Authority Rev. (Mercy Health Corp.), ETM, 6%, 2026 (c)		1,000,000		1,091,470
Dickinson County, MI, Healthcare System Hospital Rev., 5.7%, 2018		750,000		742,538
Douglas County, NE, Hospital Authority Rev. (Methodist Health Partners), 5.75%, 2048		470,000		450,824
Forsyth County, GA, Hospital Authority Rev. (Baptist Health Care System), ETM, 6%, 2008 (c)		170,000		170,566
Garden City, MI, Hospital Finance Authority Rev. (Garden City Hospital), 5%, 2038		750,000		541,268
Genesee County, NY, Industrial Development Agency Civic Facility Rev. (United Memorial Medical Center), 5%, 2027		120,000		101,197
Glendale, AZ, Industrial Development Authority (John C. Lincoln Health), 5%, 2042		115,000		95,763
Idaho Health Facilities Authority Rev. (IHC Hospitals, Inc.), ETM, 6.65%, 2021 (c)		1,750,000		2,144,765
Illinois Finance Authority Rev. (Children’s Memorial Hospital), “A”, ASSD GTY, 5.25%, 2047		2,450,000		2,398,207
Illinois Finance Authority Rev. (Edward Hospital), AMBAC, 5.5%, 2040		1,700,000		1,701,139
Illinois Finance Authority Rev. (Kewanee Hospital), 5.1%, 2031		550,000		441,579
Illinois Health Facilities Authority Rev. (Swedish American Hospital), 6.875%, 2010 (c)		500,000		537,840

MFS High Income Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued


Issuer	Shares/Par		Value ($)
Municipal Bonds – continued
Healthcare Revenue – Hospitals – continued
Indiana Health & Educational Facilities Authority, Hospital Rev. (Community Foundation of Northwest Indiana), 5.5%, 2037	$	1,445,000	$	1,235,475
Indiana Health & Educational Facilities Financing Authority Rev. (Jackson County Schneck Memorial Hospital), “A”, 5.25%, 2036		500,000		458,850
Indiana Health & Educational Facilities Financing Authority Rev. (Sisters of St. Francis Health Services, Inc.), FSA, 5.25%, 2041		145,000		144,988
Indiana Health Facilities Financing Authority Rev. (Community Foundation of Northwest Indiana ), “A”, 6%, 2034		575,000		549,740
Jackson, TN, Town Hospital Rev. (Jackson-Madison County General Hospital), 5.75%, 2041		565,000		558,412
Johnson City, TN, Health & Educational Facilities Board Hospital Rev., 5.5%, 2031		1,455,000		1,328,051
Johnson City, TN, Health, Educational Facilities Board & Hospital Rev. (Mountain States Health), “A”, 5.5%, 2036		285,000		256,252
Kent Hospital, MI, Finance Authority Rev. (Spectrum Health) “A”, 5.5%, 2047 (a)		1,000,000		1,067,280
Lake County, OH, Hospital Facilities Rev. (Lake Hospital Systems, Inc.), 5.625%, 2029		565,000		536,677
Louisiana Public Facilities Authority Hospital Rev. (Lake Charles Memorial Hospital), 6.375%, 2034		1,070,000		998,503
Lufkin, TX, Health Facilities Development Corp. Rev. (Memorial Health System), 5.5%, 2032		80,000		72,482
Lufkin, TX, Health Facilities Development Corp. Rev. (Memorial Health System), 5.5%, 2037		75,000		66,725
Maryland Health & Higher Educational Facilities Authority Rev. (Medstar Health), BHAC, 5.25%, 2046		565,000		569,582
Maryland Health & Higher Educational Facilities Authority Rev. (Washington County Hospital), 5.75%, 2038		105,000		99,862
Maryland Health & Higher Educational Facilities Authority Rev. (Washington County Hospital), 6%, 2043		150,000		146,574
Massachusetts Development Finance Agency (Boston Biomedical Research), 5.65%, 2019		200,000		200,702
Massachusetts Development Finance Agency (Boston Biomedical Research), 5.75%, 2029		450,000		426,704
Massachusetts Health & Educational Facilities Authority Rev. (Civic Investments, Inc.), “A”, 9%, 2012 (c)		1,000,000		1,203,310
Massachusetts Health & Educational Facilities Authority Rev. (Jordan Hospital), “E”, 6.75%, 2033		500,000		487,015
Massachusetts Health & Educational Facilities Authority Rev. (Milford-Whitinsville Hospital), “D”, 6.35%, 2012 (c)		1,000,000		1,137,300
Massachusetts Health & Educational Facilities Authority Rev. (Quincy Medical Center), “A”, 6.5%, 2038		420,000		404,027
Miami County, OH, Hospital Facilities Rev. (Upper Valley Medical Center), 5.25%, 2018		450,000		446,594
Michigan State Hospital Finance Authority (McLaren Health Care), 5.75%, 2038		1,130,000		1,120,926
Minneapolis & St. Paul, MN, Housing & Redevelopment Authority (Health Partners), 6%, 2021		500,000		510,515
Mississippi Hospital Equipment & Facilities Authority Rev. (South Central Regional Medical Center), 5.25%, 2026		400,000		366,552
Montgomery, AL, Medical Clinic Board Health Care Facility Rev. (Jackson Hospital & Clinic), 5.25%, 2031		155,000		135,399
Montgomery, AL, Medical Clinic Board Health Care Facility Rev. (Jackson Hospital & Clinic), 5.25%, 2036		800,000		682,592
New Hampshire Health & Educational Facilities Authority Rev. (Catholic Medical Center), “A”, 6.125%, 2012 (c)		350,000		396,158
New Hampshire Health & Educational Facilities Authority Rev. (Catholic Medical Center), “A”, 6.125%, 2032		50,000		50,153
New Hampshire Health & Educational Facilities Authority Rev. (Memorial Hospital at Conway), 5.25%, 2036		800,000		678,472
New Jersey Health Care Facilities, Financing Authority Rev. (St. Peter’s University Hospital), 5.75%, 2037		700,000		660,548

MFS High Income Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued


Issuer	Shares/Par		Value ($)
Municipal Bonds – continued
Healthcare Revenue – Hospitals – continued
New Mexico State Hospital Equipment Loan Council, Hospital Rev. (Rehoboth McKinley Christian Hospital), “A”, 5%, 2017	$	365,000	$	339,282
North Carolina Medical Care Commission (Stanly Health Services, Inc.), 6.375%, 2029		1,915,000		1,951,845
Orange County, FL, Health Facilities Authority Hospital Rev. (Orlando Regional Healthcare), 5.75%, 2012 (c)		200,000		223,262
Philadelphia, PA, Hospitals & Higher Education Facilities Authority Rev. (Temple University Hospital), “A”, 5.5%, 2030		1,615,000		1,466,275
Salida, CO, Hospital District Rev., 5.25%, 2036		945,000		755,556
Saline County, MO, Industrial Development Authority Rev. (John Fitzgibbon Memorial Hospital, Inc.), 5.625%, 2035		1,250,000		1,066,075
Skagit County, WA, Public Hospital District No. 001, 5.75%, 2032		120,000		112,973
South Carolina Jobs Economic Development Authority (Bon Secours - Venice Healthcare Corp.), 5.5%, 2012 (c)		380,000		421,618
South Carolina Jobs Economic Development Authority (Bon Secours - Venice Healthcare Corp.), 5.5%, 2023		1,370,000		1,388,810
South Dakota Health & Educational Facilities Authority Rev. (Sioux Valley Hospitals & Health Systems), “A”, 5.25%, 2034		800,000		774,528
South Lake County, FL, Hospital District Rev. (South Lake Hospital, Inc.), 6.375%, 2034		500,000		501,360
Southwestern, IL, Development Authority Rev. (Anderson Hospital), 5.5%, 2020		225,000		224,408
Southwestern, IL, Development Authority Rev. (Anderson Hospital), 5.125%, 2036		1,000,000		842,960
Sullivan County, TN, Health, Educational & Housing Facilities Board Hospital Rev. (Wellmont Health Systems Project), “C”, 5.25%, 2036		225,000		194,105
Tampa, FL, Hospital Rev. (H. Lee Moffitt Cancer Center), “A”, 5.75%, 2029		2,000,000		2,015,860
Tyler, TX, Health Facilities Development Corp. (East Texas Medical Center), “A”, 5.25%, 2032		290,000		252,764
Tyler, TX, Health Facilities Development Corp. (East Texas Medical Center), “A”, 5.375%, 2037		235,000		202,236
Tyler, TX, Health Facilities Development Corp. (Mother Frances Hospital), 6%, 2012 (c)		1,000,000		1,118,350
West Orange, FL, Healthcare District, “A”, 5.65%, 2022		525,000		533,736
West Virginia Hospital Finance Authority Rev. (Charleston Medical Center), 6.75%, 2010 (c)		805,000		883,198
Wisconsin Health & Educational Facilities Authority Rev. (Aurora Health Care, Inc.), 6.4%, 2033		525,000		534,156
Wisconsin Health & Educational Facilities Authority Rev. (Fort Healthcare, Inc.), 5.75%, 2029		1,000,000		986,830
Wisconsin Health & Educational Facilities Authority Rev. (Wheaton Franciscan Services), 5.25%, 2034		865,000		718,720
			$	53,904,975
Healthcare Revenue – Long Term Care – 29.5%
ABAG Finance Authority for Non-Profit Corps., CA (Eskaton Gold River Lodge), 6.375%, 2008 (c)	$	525,000	$	540,398
ABAG Finance Authority for Non-Profit Corps., CA (Eskaton Gold River Lodge), 6.375%, 2008 (c)		550,000		566,242
Abilene, TX, Health Facilities Development Corp., Retirement Facilities Rev. (Sears Methodist Retirement), “A”, 5.9%, 2025		1,000,000		939,290
Abilene, TX, Health Facilities Development Corp., Retirement Facilities Rev. (Sears Methodist Retirement), “A”, 7%, 2033		500,000		501,670
Boston, MA, Industrial Development Financing Authority Rev. (Springhouse, Inc.), 5.875%, 2020		255,000		252,728
Bucks County, PA, Industrial Development Authority Rev. (Lutheran Community Telford Center), 5.75%, 2027		120,000		108,175
Bucks County, PA, Industrial Development Authority Rev. (Lutheran Community Telford Center), 5.75%, 2037		155,000		131,916
Bucks County, PA, Industrial Development Authority, Retirement Community Rev. (Ann’s Choice, Inc.), 6.125%, 2025		1,000,000		990,240

MFS High Income Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued


Issuer	Shares/Par		Value ($)
Municipal Bonds – continued
Healthcare Revenue – Long Term Care – continued
California Statewide Communities Development Authority Rev. (Eskaton Properties, Inc.), 8.25%, 2010 (c)	$	970,000	$	1,097,555
Capital Projects Finance Authority, FL (Glenridge on Palmer Ranch), “A”, 8%, 2012 (c)		750,000		889,148
Chester County, PA, Industrial Development Authority Rev. (RHA Nursing Home), 8.5%, 2032		1,530,000		1,541,261
Colorado Health Facilities Authority Rev. (American Baptist Homes), “A”, 5.9%, 2037		530,000		454,019
Colorado Health Facilities Authority Rev. (American Housing Foundation, Inc.), 8.5%, 2031		455,000		457,316
Colorado Health Facilities Authority Rev. (Covenant Retirement Communities, Inc.), 5%, 2035		1,400,000		1,144,038
Columbus, GA, Housing Authority Rev. (Calvary Community, Inc.), 7%, 2019		450,000		426,573
Connecticut Development Authority Rev. (Elim Park Baptist Home, Inc.), 5.85%, 2033		660,000		626,617
Fulton County, GA, Residential Care Facilities (Canterbury Court), “A”, 6.125%, 2034		750,000		686,565
Fulton County, GA, Residential Care Facilities, (Lenbrook Project), “A”, 5.125%, 2042		1,000,000		759,210
Fulton County, GA, Residential Care Facilities, First Mortgage (Lenbrook Square Foundation, Inc.), “A”, 5%, 2029		1,000,000		803,810
HFDC of Central Texas, Inc., Retirement Facilities Rev. (Legacy at Willow Bend), “A”, 5.75%, 2036		800,000		665,768
Houston, TX, Health Facilities Development Corp. (Buckingham Senior Living Community), “A”, 7.125%, 2014 (c)		500,000		602,975
Howard County, MD, Retirement Facilities Rev. (Vantage House Corp.), “A”, 5.25%, 2033		250,000		199,500
Huntington, NY, Housing Authority Rev. (Gurwin Senior Jewish Residences), “A”, 5.875%, 2019		700,000		676,564
Huntington, NY, Housing Authority Rev. (Gurwin Senior Jewish Residences), “A”, 6%, 2029		775,000		712,272
Illinois Finance Authority Rev. (Hoosier Care, Inc.), “A”, 7.125%, 2034		1,150,000		1,078,643
Illinois Finance Authority Rev. (Smith Village), “A”, 6.25%, 2035		1,250,000		1,135,125
Illinois Health Facilities Authority Rev. (Lutheran Senior Ministries, Inc.), 7.375%, 2011 (c)		900,000		1,029,762
Illinois Health Facilities Authority Rev. (Smith Crossing), “A”, 7%, 2032		725,000		725,834
Indiana Health Facilities Financing Authority Rev. (Hoosier Care, Inc.), 7.125%, 2034		150,000		140,693
Iowa Finance Authority, Health Care Facilities Rev. (Care Initiatives), 9.25%, 2011 (c)		895,000		1,060,584
Iowa Finance Authority, Health Care Facilities Rev. (Care Initiatives), “B”, 5.75%, 2018		550,000		537,856
Iowa Finance Authority, Health Care Facilities Rev. (Care Initiatives), “B”, 5.75%, 2028		1,475,000		1,316,393
James City County, VA, Economic Development (Virginia United Methodist Homes, Inc.), “A”, 5.5%, 2037		665,000		527,013
Johnson City, TN, Health & Educational Facilities Board (Appalachian Christian Village), “A”, 6.25%, 2032		250,000		226,415
Juneau, AK, City & Borough Non-Recourse Rev. (St. Ann’s Care Project), 6.875%, 2025		1,145,000		1,082,540
Kent County, DE, Assisted Living (Heritage at Dover LLC), 7.625%, 2030		1,590,000		1,400,218
Kentwood, MI, Economic Development Ltd. (Holland Home), “A”, 5.375%, 2036		1,000,000		870,350
La Verne, CA, COP (Brethren Hillcrest Homes), “B”, 6.625%, 2025		690,000		701,337
Lancaster, PA, Industrial Development Authority Rev. (Garden Spot Village), “A”, 7.625%, 2010 (c)		500,000		550,555
Lee County, FL, Industrial Development Authority Health Care Facilities Rev. (Shell Point Village), “A”, 5.5%, 2009 (c)		600,000		630,780
Manhattan, KS, Health Care Facilities Rev. (Meadowlark Hills Retirement Foundation), “A”, 6.375%, 2009 (c)		650,000		676,306
Marion, IA, Health Care Facilities Rev., First Mortgage (AHF/Kentucky-Iowa, Inc.), 6.5% to 2009, 8% to 2029		575,000		626,394
Massachusetts Development Finance Agency Rev. (Adventcare), “A”, 6.75%, 2037		895,000		819,820
Massachusetts Development Finance Agency Rev. (Alliance Health of Brockton, Inc.), “A”, 7.1%, 2032		1,215,000		1,166,424
Massachusetts Development Finance Agency Rev. (Linden Ponds, Inc.), “A”, 5.5%, 2027		240,000		211,949

MFS High Income Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued


Issuer	Shares/Par		Value ($)
Municipal Bonds – continued
Healthcare Revenue – Long Term Care – continued
Massachusetts Development Finance Agency Rev. (Linden Ponds, Inc.), “A”, 5.75%, 2035	$	60,000	$	51,967
Massachusetts Development Finance Agency Rev. (Loomis Communities, Inc.), “A”, 5.625%, 2015		400,000		402,476
Massachusetts Development Finance Agency Rev. (Loomis Communities, Inc.), “A”, 6.9%, 2032		100,000		100,633
Metropolitan Government of Nashville & Davidson County, TN, Health & Educational Facilities Board Rev. (Blakeford at Green Hills), 5.65%, 2024		600,000		545,574
Metropolitan Government of Nashville & Davidson County, TN, Health & Educational Facilities Board, First Mortgage, 7.75%, 2029		1,140,000		1,236,957
Montgomery County, PA, Industrial Development Authority Rev. (Whitemarsh Continuing Care), 6.125%, 2028		250,000		227,443
Montgomery County, PA, Industrial Development Authority Rev. (Whitemarsh Continuing Care), 6.25%, 2035		750,000		669,488
New Hampshire Higher Education & Health Facilities Authority Rev. (Rivermead at Peterborough Retirement Community), 5.625%, 2018		500,000		497,905
New Hampshire Higher Education & Health Facilities Authority Rev. (Rivermead at Peterborough Retirement Community), 5.75%, 2028		500,000		450,270
New Jersey Economic Development Authority Rev. (Lions Gate), “A”, 5.75%, 2025		205,000		189,844
New Jersey Economic Development Authority Rev. (Lions Gate), “A”, 5.875%, 2037		830,000		730,234
New Jersey Economic Development Authority Rev. (Seabrook Village, Inc.), 5.25%, 2026		1,300,000		1,130,428
New Jersey Economic Development Authority Rev. (Seabrook Village, Inc.), “A”, 8.25%, 2010 (c)		925,000		1,052,521
New Jersey Economic Development Authority Rev. (Seashore Gardens), 5.375%, 2036		500,000		403,190
North Carolina Medical Care Commission, First Mortgage (DePaul Community Facilities, Inc.), 7.625%, 2009 (c)		1,475,000		1,579,578
Roseville, MN, Elder Care Facilities (Care Institute, Inc.), 7.75%, 2023		1,740,000		1,530,434
Sartell, MN, Health Care & Housing Authority Rev. (The Foundation for Health Care), “A”, 6.625%, 2029		1,145,000		1,105,429
Savannah, GA, Economic Development Authority, First Mortgage (Marshes of Skidway), “A”, 7.4%, 2034		465,000		466,488
Shelby County, TN, Health, Educational & Housing Facilities Board Rev. (Germantown Village), “A”, 7.25%, 2034		450,000		420,089
South Carolina Jobs & Economic Development Authority Rev. (Woodlands at Furman), “A”, 6%, 2027		365,000		338,326
South Carolina Jobs & Economic Development Authority Rev. (Woodlands at Furman), “A”, 6%, 2042		335,000		289,731
South Carolina Jobs & Economic Development Authority, Health Facilities Rev. (Wesley Commons), 5.3%, 2036		300,000		245,856
St. Johns County, FL, Industrial Development Authority (Glenmoor Project), “A”, 5.25%, 2026		500,000		425,380
St. Johns County, FL, Industrial Development Authority (Glenmoor Project), “A”, 5.375%, 2040		250,000		195,985
Washington County, PA, Industrial Development Authority Rev., First Mortgage (AHF/Central Project), 7.75%, 2029		1,210,000		1,329,536
Wisconsin Health & Educational Facilities Authority Rev. (Clement Manor, Inc.), 5.75%, 2024		1,300,000		1,219,959
Wisconsin Health & Educational Facilities Board Rev. (All Saints Assisted Living Project), 5.9%, 2027		120,000		111,444
Wisconsin Health & Educational Facilities Board Rev. (All Saints Assisted Living Project), 6%, 2037		245,000		221,139
			$	49,457,145
Industrial Revenue – Airlines – 3.3%
Alliance Airport Authority, TX (American Airlines, Inc.), 5.25%, 2029	$	1,125,000	$	649,035

MFS High Income Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued


Issuer	Shares/Par		Value ($)
Municipal Bonds – continued
Industrial Revenue – Airlines – continued
Chicago, IL, O’Hare International Airport Special Facilities Rev. (American Airlines, Inc.), 5.5%, 2030	$	2,255,000	$	1,351,670
Cleveland, OH, Airport Special Rev. (Continental Airlines, Inc.), 5.7%, 2019		1,125,000		908,021
Dallas Fort Worth, TX, International Airport Facility Improvement Corp. (American Airlines, Inc.), 5.5%, 2030		1,000,000		589,440
New Jersey Economic Development Authority, Special Facilities Rev. (Continental Airlines, Inc.), 6.25%, 2029		485,000		367,417
New Jersey Economic Development Authority, Special Facilities Rev. (Continental Airlines, Inc.), 9%, 2033 (a)		750,000		752,430
New York, NY, City Industrial Development Agencies Rev. (American Airlines, Inc.), 7.75%, 2031		975,000		871,670
			$	5,489,683
Industrial Revenue – Chemicals – 0.3%
Brazos River, TX, Harbor Navigation District (Dow Chemical Co.), “B-2”, 4.95%, 2033	$	600,000	$	505,758
Industrial Revenue - Environmental Services – 0.7%
Carbon County, UT, Solid Waste Disposal Rev. (Allied Waste Industries), “A”, 7.5%, 2010	$	250,000	$	251,748
Carbon County, UT, Solid Waste Disposal Rev. (Laidlaw Environmental), “A”, 7.45%, 2017		500,000		500,850
Gulf Coast Waste Disposal Authority, TX (Waste Management of Texas), “A”, 5.2%, 2028		465,000		386,671
			$	1,139,269
Industrial Revenue – Metals – 0.6%
Director of Nevada Department of Business & Industry (Wheeling/Pittsburgh Steel), “A”, 8%, 2014	$	620,000	$	622,102
Greensville County, VA, Industrial Development Authority Rev. (Wheeling/Pittsburgh Steel), “A”, 7%, 2014		340,000		331,289
			$	953,391
Industrial Revenue – Other – 3.9%
Annawan, IL, Tax Increment Rev. (Patriot Renewable Fuels LLC), 5.625%, 2018	$	450,000	$	420,651
California Statewide Communities Development Authority Facilities (Microgy Holdings Project), 9%, 2038		500,000		499,875
Gulf Coast, TX, Industrial Development Authority Rev. (CITGO Petroleum Corp.), 8%, 2028		500,000		518,560
Houston, TX, Industrial Development Corp. (United Parcel Service, Inc.), 6%, 2023		650,000		600,854
Indianapolis, IN, Airport Authority Rev., Special Facilities (FedEx Corp.), 5.1%, 2017		250,000		236,380
Michigan Strategic Fund Rev. (Michigan Sugar Co.), “A”, 6.25%, 2015		1,250,000		1,258,625
New Jersey Economic Development Authority Rev. (GMT Realty LLC), “B”, 6.875%, 2037		1,500,000		1,460,625
Virgin Islands Government Refinery Facilities Rev. (Hovensa Coker Project), 6.5%, 2021		375,000		376,493
Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Coker Project), 5.875%, 2022		600,000		569,214
Will-Kankakee, IL, Regional Development Authority Rev. (Flanders Corp.), 6.5%, 2017		650,000		641,921
			$	6,583,198
Industrial Revenue – Paper – 2.8%
Bedford County, VA, Industrial Development Authority Rev. (Nekooska Packaging Corp.), 5.6%, 2025	$	400,000	$	312,536
Camden, AL, Industrial Development Board Exempt Facilities Rev., “B” (Weyerhaeuser Co.), 6.375%, 2024		550,000		627,633
Camden, AR, Environmental Improvement Rev. (International Paper Co.), “A”, 5%, 2018		250,000		223,948
Courtland, AL, Industrial Development Board Rev. (International Paper Co.), “B”, 6.25%, 2025		1,000,000		949,050

MFS High Income Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued


Issuer	Shares/Par		Value ($)
Municipal Bonds – continued
Industrial Revenue – Paper – continued
Escambia County, FL, Environmental Improvement Rev. (International Paper Co.), “A”, 4.75%, 2030	$	370,000	$	276,235
Escambia County, FL, Environmental Improvement Rev. (International Paper Co., Projects), “A”, 5%, 2026		1,270,000		1,017,435
Lowndes County, MS, Solid Waste Disposal & Pollution Control Rev. (Weyerhaeuser Co.), “B”, 6.7%, 2022		850,000		870,519
Phenix City, AL, Industrial Development Board Environmental Improvement Rev., “A” (MeadWestvaco Coated), 6.35%, 2035		550,000		510,736
			$	4,788,092
Miscellaneous Revenue – Entertainment & Tourism – 2.2%
Agua Caliente Band of Cahuilla Indians, CA, 5.6%, 2013 (z)	$	1,000,000	$	1,026,140
Cabazon Band Mission Indians, CA, 8.375%, 2015 (z)		200,000		207,174
Cabazon Band Mission Indians, CA, 8.75%, 2019 (z)		895,000		930,585
Cow Creek Band of Umpqua Tribe of Indians, OR, “C”, 5.625%, 2026 (n)		800,000		712,136
New York Liberty Development Corp. Rev. (National Sports Museum), “A”, 6.125%, 2019		600,000		531,792
Seminole Tribe, FL, Special Obligation, “A”, 5.25%, 2027 (n)		365,000		336,855
			$	3,744,682
Miscellaneous Revenue – Other – 0.9%
Austin, TX, Convention Center (Convention Enterprises, Inc.), XLCA, 5.25%, 2024	$	150,000	$	140,961
Capital Trust Agency, FL (Aero Syracuse LLC), 6.75%, 2032		500,000		469,865
Cleveland-Cuyahoga County, OH, Port Authority Rev. (Columbia National Group), 5%, 2020		730,000		677,995
V Lakes Utility District Ranking Water Systems Rev., 7%, 2037		300,000		267,888
			$	1,556,709
Multi-Family Housing Revenue – 9.1%
Broward County, FL, Housing Finance Authority Rev. (Chaves Lakes Apartments Ltd.), “A”, 7.5%, 2040	$	750,000	$	762,285
Capital Trust Agency, FL, Housing Rev. (Atlantic Housing Foundation), 7%, 2032		765,000		765,000
Charter Mac Equity Issuer Trust, FHLMC, 6.3%, 2019 (n)		1,000,000		1,087,330
Charter Mac Equity Issuer Trust, FRN, FHLMC, 6.625%, 2009 (a)(n)		2,000,000		2,048,620
Clay County, FL, Housing Finance Authority Rev. (Madison Commons Apartments), “A”, 7.45%, 2040		715,000		721,728
District of Columbia Housing Finance Agency (Henson Ridge), FHA, 5.1%, 2037		1,000,000		890,320
Durham, NC, Durham Housing Authority Rev. (Magnolia Pointe Apartments), 5.65%, 2038 (a)		1,495,185		1,310,828
El Paso County, TX, Housing Finance Corp. (American Housing Foundation), “D”, 10%, 2032		395,000		396,762
El Paso County, TX, Housing Finance Corp. (American Housing Foundation, Inc.), “C”, 8%, 2032		365,000		366,745
Massachusetts Housing Finance Agency Rev., “B”, 5%, 2030		500,000		478,125
Massachusetts Housing Finance Agency Rev., “E”, 5%, 2028		500,000		459,830
MuniMae TE Bond Subsidiary LLC, 7.75%, 2050 (a)(n)		2,000,000		2,122,780
New Mexico Mortgage Finance Authority, Multi-Family Housing Rev. (Sun Pointe Apartments), “E”, FHA, 4.8%, 2040		1,250,000		1,046,988
Resolution Trust Corp., Pass-Through Certificates, “1993”, 8.5%, 2016 (z)		546,075		537,736
Seattle, WA, Housing Authority Rev., Capped Fund Program (High Rise Rehab), “I”, FSA, 5%, 2025		500,000		467,650
Texas Department of Housing & Community Affairs (Pebble Brook Apartments), 5.5%, 2018		995,000		1,006,880
Wilmington, DE, Multi-Family Housing Rev. (Electra Arms Senior Associates), 6.25%, 2028		850,000		762,195
			$	15,231,802
Sales & Excise Tax Revenue – 0.4%
Bolingbrook, IL, Sales Tax Rev., 6.25%, 2024	$	750,000	$	756,203

MFS High Income Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued


Issuer	Shares/Par		Value ($)
Municipal Bonds – continued
Single Family Housing – Local – 1.6%
Minneapolis & St. Paul Housing Authority Rev. (City Living), “A-2”, GNMA, 5%, 2038	$	978,599	$	814,371
Pittsburgh, PA, Urban Redevelopment Authority Rev., “C”, GNMA, 4.8%, 2028		2,000,000		1,874,380
			$	2,688,751
Single Family Housing – State – 1.3%
North Dakota Housing Finance Agency Rev., “A”, 4.85%, 2021	$	1,170,000	$	1,091,458
Oklahoma Housing Finance Agency Rev. (Homeownership Loan Program), “C”, GNMA, 5%, 2026		1,285,000		1,189,100
			$	2,280,558
Solid Waste Revenue – 1.6%
Delaware County, PA, Industrial Development Authority, Resource Recovery Facilities Rev. (American Ref-Fuel Co.), “A”, 6.2%, 2019	$	2,000,000	$	1,956,680
Massachusetts Development Finance Agency, Resource Recovery Rev. (Ogden Haverhill Associates), “A”, 6.7%, 2014		210,000		218,486
Massachusetts Industrial Finance Agency, Resource Recovery Rev. (Ogden Haverhill Associates), “A”, 5.6%, 2019		500,000		472,825
			$	2,647,991
State & Agency – Other – 0.1%
Commonwealth of Puerto Rico (Mepsi Campus), “A”, 6.25%, 2024	$	100,000	$	97,039
State & Local Agencies – 4.1%
California Public Works Board Lease Rev., Department of Mental Health (Coalinga), “A”, 5.5%, 2019	$	1,000,000	$	1,072,500
Dorchester County, SC, School District No. 2, Growth Remedy Opportunity Tax Hike, 5.25%, 2029		650,000		646,653
Louisiana Military Department Custody Receipts, 5%, 2024		1,500,000		1,518,495
New York Urban Development Corp. (University Facilities Grants), 5.875%, 2021		1,000,000		1,122,520
Newberry, SC, Investing in Children’s Education (Newberry County School District Program), 5%, 2030		500,000		461,105
Puerto Rico Public Finance Corp., “E”, ETM, 6%, 2026 (c)		155,000		176,767
Puerto Rico Public Finance Corp., Unrefunded, “E”, 6%, 2026		1,645,000		1,876,007
			$	6,874,047
Tax – Other – 1.2%
Dallas County, TX, Flood Control District, 7.25%, 2032	$	1,000,000	$	1,031,990
New Jersey Economic Development Authority Rev. (Cigarette Tax), 5.75%, 2029		1,000,000		946,470
			$	1,978,460
Tax Assessment – 14.4%
Atlanta, GA, Tax Allocation (Eastside Project), “A”, 5.625%, 2016	$	600,000	$	594,546
Ave Maria Stewardship Community District, FL, “A”, 5.125%, 2038		350,000		258,454
Carson, CA, Improvement Board Act 1915, 7.375%, 2022		35,000		35,365
Celebration Community Development District, FL, “A”, 6.4%, 2034		950,000		971,100
Channing Park Community Development District, FL, 5.3%, 2038		600,000		451,692
Chicago, IL, Tax Increment Allocation (Pilsen Redevelopment), “B”, 6.75%, 2022		450,000		461,966
Colonial Country Club Community Development District, FL, 6.4%, 2033		705,000		715,928
Double Branch Community Development District, FL, “A”, 6.7%, 2034		660,000		672,329
Du Page County, IL, Special Service Area No. 31 Special Tax (Monarch Landing Project), 5.625%, 2036		250,000		209,623
Durbin Crossing Community Development District, FL, Special Assessment, “B-1”, 4.875%, 2010		295,000		281,993
Grand Bay at Doral Community Development District, FL, “A”, 6%, 2039		120,000		100,482
Grand Bay at Doral Community Development District, FL, “B”, 6%, 2017		700,000		645,218
Heritage Harbour North Community Development District, FL, Capital Improvement Rev., 6.375%, 2038		415,000		367,271
Homestead 50 Community Development District, FL, “A”, 6%, 2037		480,000		402,422
Homestead 50 Community Development District, FL, “B”, 5.9%, 2013		220,000		208,824

MFS High Income Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued


Issuer	Shares/Par		Value ($)
Municipal Bonds – continued
Tax Assessment – continued
Huntington Beach, CA, Community Facilities District, Special Tax (Grand Coast Resort), “2000-1”, 6.45%, 2031	$	750,000	$	761,790
Lexington Oaks Community Development District, FL, “A”, 6.125%, 2008 (c)		305,000		307,153
Lexington Oaks Community Development District, FL, “A”, 7.2%, 2030		260,000		264,867
Lexington Oaks Community Development District, FL, “A”, 6.7%, 2033		250,000		255,165
Lincoln, CA, Special Tax (Community Facilities District ), “2003-1”, 5.9%, 2013 (c)		445,000		512,983
Lincolnshire, IL, Special Service Area No. 1 (Sedgebrook Project), 6.25%, 2034		500,000		462,965
Magnolia Park Community Development District, FL, Special Assessment Rev., “A”, 6.15%, 2039		815,000		700,761
Northwest Metropolitan District No. 3, CO, 6.25%, 2035		500,000		418,775
Oakdale, CA, Public Financing Authority Tax Allocation Rev. (Central City Redevelopment Project), 5.375%, 2033		1,375,000		1,279,850
Oakmont Grove Community Development District, CA, “A”, 5.4%, 2038		500,000		360,675
Ohio County, WV, Commission Tax Increment Rev. (Fort Henry Centre), “A”, 5.85%, 2034		165,000		154,391
Orange County, CA, Community Facilities District, Special Tax (Ladera Ranch), “A”, 6.7%, 2009 (c)		500,000		534,070
Orange County, CA, Improvement Act 1915, “B”, 5.75%, 2033		500,000		462,655
Orlando, FL, Special Assessment Rev. (Conroy Road Interchange Project), “A”, 5.5%, 2010		70,000		69,362
Orlando, FL, Special Assessment Rev. (Conroy Road Interchange Project), “A”, 5.8%, 2026		300,000		289,695
Plano, IL, Special Service Area No. 4 (Lakewood Springs Project Unit 5-B), 6%, 2035		2,000,000		1,820,600
Portage, IN, Economic Development Rev. (Ameriplex Project), 5%, 2023		300,000		279,972
Redwood City, CA, Community Facilities District, Special Tax, “B”, 5.95%, 2028		600,000		591,720
San Diego, CA, Redevelopment Agency, Tax Allocation Rev., 0%, 2019 (f)		1,910,000		1,161,089
San Diego, CA, Redevelopment Agency, Tax Allocation Rev., 0%, 2022 (f)		1,910,000		962,315
Sarasota National Community Development District, FL, Special Assessment Rev., 5.3%, 2039		1,200,000		888,072
Seven Oaks, FL, Community Development District II Special Assessment Rev., “A”, 5.875%, 2035		270,000		225,882
Seven Oaks, FL, Community Development District II Special Assessment Rev., “B”, 5%, 2009		580,000		572,593
Sweetwater Creek Community Development District, FL, Capital Improvement Rev., 5.5%, 2038		300,000		221,460
Tolomato Community Development District, FL, Special Assessment Rev., 6.65%, 2040		760,000		734,639
Tuscany Reserve Community Development District, FL, Special Assessment, “B”, 5.25%, 2016		235,000		202,861
Volo Village, IL, Special Service Area No. 3, Special Tax (Symphony Meadows Project), “1”, 6%, 2036		749,000		663,929
West Villages Improvement District, FL, Special Assessment Rev. (Unit of Development No. 3), 5.5%, 2037		740,000		580,833
Westchester, FL, Community Development District No. 1 (Community Infrastructure), 6.125%, 2035		425,000		362,274
Westridge, FL, Community Development District, Capital Improvement Rev., 5.8%, 2037		1,230,000		1,005,746
Wyandotte County-Kansas City, KS, Unified Government Transportation Development District (Legends Village West Project), 4.875%, 2028		770,000		651,366
			$	24,137,721
Tobacco – 10.7%
Buckeye, OH, Tobacco Settlement Financing Authority Rev., 5.75%, 2034	$	635,000	$	528,390
Buckeye, OH, Tobacco Settlement Rev., Asset Backed, “A-2”, 5.875%, 2030		3,905,000		3,374,193
Buckeye, OH, Tobacco Settlement Rev., Asset Backed, “A-2”, 5.875%, 2047		3,030,000		2,454,149
California County, CA, Tobacco Securitization Agency, Tobacco Settlement Rev. (Los Angeles County), 0%, 2046		6,500,000		291,200

MFS High Income Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued


Issuer	Shares/Par		Value ($)
Municipal Bonds – continued
Tobacco – continued
Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., “A-1”, 6.25%, 2013 (c)	$	1,680,000	$	1,836,223
Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Asset Backed, “A-1”, 5.125%, 2047		2,125,000		1,573,903
Inland Empire, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Asset Backed, “C-1”, 0%, 2036		2,310,000		258,674
Michigan Tobacco Settlement Finance Authority Rev., Asset Backed, “A”, 6%, 2048		2,375,000		1,972,081
Rhode Island Tobacco Settlement Authority, 6%, 2023		2,740,000		2,709,860
Tobacco Settlement Authority of Washington Rev., Asset Backed, 6.625%, 2032		250,000		247,440
Tobacco Settlement Financing Corp., NJ, 6.75%, 2013 (c)		1,500,000		1,753,305
Virginia Tobacco Settlement Financing Corp., “B-1”, 5%, 2047		1,250,000		885,775
			$	17,885,193
Toll Roads – 4.0%
E-470 Public Highway Authority, CO, “B”, 0%, 2010 (c)	$	8,750,000	$	1,264,813
E-470 Public Highway Authority, CO, “B”, MBIA, 0%, 2018		3,000,000		1,836,930
Northwest Parkway, CO, Public Highway Authority (First Tier), “D”, 7.125%, 2011 (c)		1,245,000		1,413,212
Richmond, VA, Metropolitan Authority Expressway Rev., FGIC, 5.25%, 2022		2,000,000		2,163,980
			$	6,678,935
Universities –Colleges – 9.2%
California Municipal Finance Authority Rev. (Biola University), 5.8%, 2028	$	100,000	$	99,877
New York Dormitory Authority Rev. (Columbia University), 10.699%, 2038 (u)		15,000,000		15,290,700
			$	15,390,577
Universities – Dormitories – 0.9%
California Statewide Communities Development Authority Rev. (Lancer Educational Student Housing Project), 5.625%, 2033	$	1,015,000	$	904,040
Minneapolis, MN, Student Housing Rev. (Riverton Community Housing Project), “A”, 5.7%, 2040		750,000		662,355
			$	1,566,395
Universities – Secondary Schools – 1.9%
California Statewide Communities Development Authority Rev., COP, (Crossroads Schools for the Arts & Sciences), 6%, 2028	$	1,170,000	$	1,200,677
Colorado Housing Finance Development Rev. (Evergreen Country Day School), 5.875%, 2037		545,000		482,265
Lee County, FL, Industrial Development Authority Rev. (Lee Charter Foundation), “A”, 5.375%, 2037		695,000		554,561
Massachusetts Industrial Finance Agency (Cambridge Friends School), 5.8%, 2028		1,000,000		931,790
			$	3,169,293
Utilities – Cogeneration – 2.2%
Pennsylvania Economic Development Financing Authority Rev., Resources Recovery Rev. (Northampton Generating), “A”, 6.5%, 2013	$	1,000,000	$	1,001,240
Port Authority NY & NJ, Special Obligation Rev., 6.75%, 2011		1,500,000		1,501,620
Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Central Facilities
(Cogeneration Facilities - AES Puerto Rico Project), 6.625%, 2026		645,000		668,020
Suffolk County, NY, Industrial Development Agency Rev. (Nissequoque Cogeneration Partners Facilities), 5.5%, 2023		550,000		503,008
			$	3,673,888
Utilities – Investor Owned – 6.1%
Brazos River Authority, TX, Pollution Control Rev. (TXU Electric Co. LLC), “C”, 5.75%, 2036 (a)	$	280,000	$	260,845
Brazos River Authority, TX, Pollution Control Rev. (TXU Electric Co. LLC), “C”, 6.75%, 2038		645,000		525,946
Brazos River Authority, TX, Pollution Control Rev. (TXU Electric Co. LLC), “D”, 5.4%, 2029 (a)		60,000		52,947
Bryant, IL, Pollution Control Rev. (Central Illinois Light Co.), 5.9%, 2023		2,650,000		2,654,426

MFS High Income Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued


Issuer	Shares/Par		Value ($)
Municipal Bonds – continued
Utilities – Investor Owned – continued
Clark County, NV, Industrial Development Rev. (Nevada Power Co. Project), “B”, 5.9%, 2030	$	1,250,000	$	1,099,038
Matagorda County, TX, Navigation District No. 1 Pollution Control Rev. (AEP - Texas Central Co.), 5.125%, 2030 (a)		1,500,000		1,509,210
Mississippi Business Finance Corp., Pollution Control Rev. (Systems Energy Resources Project), 5.875%, 2022		2,000,000		1,962,360
New Hampshire Business Finance Authority, Pollution Control Rev. (Public Service of New Hampshire), “B”, MBIA, 4.75%, 2021		250,000		244,175
Pennsylvania Economic Development Financing Authority Rev. (Reliant Energy Seward), “A”, 6.75%, 2036		600,000		605,016
Red River, TX, Authority Pollution Control (AEP Texas Central Co.), MBIA, 4.45%, 2020		530,000		516,247
Sabine River Authority, TX, Pollution Control Rev. (TXU Electric Co. LLC), 5.2%, 2028		240,000		173,570
Sabine River Authority, TX, Pollution Control Rev. (TXU Electric Co. LLC), 5.75%, 2030 (a)		205,000		190,976
West Feliciana Parish, LA, Pollution Control Rev. (Entergy Gulf States), 6.6%, 2028		500,000		496,160
			$	10,290,916
Utilities – Municipal Owned – 0.5%
North Carolina Eastern Municipal Power Agency System Rev., “F”, 5.5%, 2016	$	285,000	$	296,637
North Carolina Eastern Municipal Power Agency, “D”, 6.7%, 2019		500,000		520,245
			$	816,882
Utilities – Other – 0.7%
Main Street Natural Gas, Inc. Gas Rev., “B”, 5%, 2019	$	425,000	$	386,907
Main Street Natural Gas, Inc., GA, Gas Project Rev., “A”, 5.5%, 2028		430,000		370,527
Tennessee Energy Acquisition Corp., Gas Rev., “A”, 5.25%, 2026		215,000		197,007
Tennessee Energy Acquisition Corp., Gas Rev., “C”, 5%, 2025		310,000		278,485
			$	1,232,926
Water & Sewer Utility Revenue – 11.2%
Guam Government Waterworks Authority, Water & Wastewater Rev., 5.875%, 2035	$	1,125,000	$	1,081,631
New Hampshire Industrial Development Authority Rev. (Pennichuck Water Works, Inc.), 7.5%, 2012 (c)		310,000		370,326
Puerto Rico Aqueduct & Sewer Authority Rev., “A”, 6%, 2038		850,000		886,440
Puerto Rico Aqueduct & Sewer Authority Rev., “A”, 6%, 2044		160,000		165,995
Surprise, AZ, Municipal Property Corp., 4.9%, 2032		800,000		715,392
Virginia Resources Authority Clean Water Rev., 13.225%, 2029 (u)		5,315,000		5,515,110
Virginia Resources Authority Clean Water Rev., 13.225%, 2030 (u)		9,685,000		10,017,873
			$	18,752,767
Total Municipal Bonds			$	275,300,853
Floating Rate Demand Notes – 18.5%
East Baton Rouge, LA, Pollution Control Rev. (Exxon Mobil Corp.), 2%, due 9/02/08	$	5,400,000	$	5,400,000
Jacksonville, FL, Pollution Control Rev. (Florida Power & Light Co.), 2.29%, due 9/02/08		11,400,000		11,400,000
Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), 2%, due 9/02/08		700,000		700,000
Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), “A”, 2.2%, due 9/02/08		150,000		150,000
Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), “B”, 2.2%, due 9/02/08		1,500,000		1,500,000
Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), “C”, 2.2%, due 9/02/08		2,600,000		2,600,000
Mt. Vernon Industrial Pollution Control Rev. (General Electric Co.), 2.27%, due 9/02/08		4,100,000		4,100,000
New York, NY, “A-4”, 2.3%, due 9/02/08		4,750,000		4,750,000
Sublette County, WY, Pollution Control Rev. (Exxon Mobil Corp.), 2%, due 9/02/08		400,000		400,000
Total Floating Rate Demand Notes			$	31,000,000

MFS High Income Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued


Total Investments	$	306,300,853

Other Assets, Less Liabilities – (11.0)%		(18,520,312	)

Preferred shares (issued by the fund) – (71.5)%		(120,000,000	)
Net assets applicable to common shares – 100.0%	$	167,780,541

(a)	Mandatory tender date is earlier than stated maturity date.

(c)	Refunded bond.

(f)	All or a portion of the security has been segregated as collateral for open futures contracts.

(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 $6,307,721, representing 3.8% of net assets applicable to common shares.

(u)	Underlying security deposited into special purpose trust (“the trust”) by investment banker upon creation of self-deposited inverse floaters.

(z)

Restricted securities are not registered under the Securities Act of 1933 and are subject to legal restrictions on resale. These securities generally may be resold in transactions exempt from registration or to the public if the securities are subsequently registered. Disposal of these securities may involve time-consuming negotiations and prompt sale at an acceptable price may be difficult. The fund holds the following restricted securities:


Restricted Securities	Acquisition Date	Cost		Current Market Value
Agua Caliente Band of Cahuilla Indians, CA, 5.6%, 2013	7/22/03	$	1,001,386	$	1,026,140
Cabazon Band Mission Indians, CA, 8.375%, 2015	10/04/04		200,000		207,174
Cabazon Band Mission Indians, CA, 8.75%, 2019	10/04/04		895,000		930,585
Resolution Trust Corp., Pass-Through Certificates, “1993”, 8.5%, 2016	8/27/93		556,951		537,736

Total Restricted Securities				$	2,701,635
% of Net Assets					1.6	%

The following abbreviations are used in this report and are defined:


COP		Certificate of Participation
ETM		Escrowed to Maturity
FRN		Floating Rate Note. Interest rate resets periodically and may not be the rate reported at period end.

Insurers
AMBAC		AMBAC Indemnity Corp.
ASSD GTY		Assured Guaranty Insurance Co.
BHAC		Berkshire Hathaway Assurance Corp.
FGIC		Financial Guaranty Insurance Co.
FHA		Federal Housing Administration
FHLMC		Federal Home Loan Mortgage Corp.
FSA		Financial Security Assurance Inc.
GNMA		Government National Mortgage Assn.
MBIA		MBIA Insurance Corp.
PSF		Permanent School Fund
XLCA		XL Capital Insurance Co.

See attached supplemental information. For more information see notes to financial statements as disclosed in the most recent semiannual or annual report.

MFS High Income Municipal Trust

Supplemental Information (Unaudited) 8/31/08

(1) Fair Value Disclosure

The fund adopted FASB Statement No. 157, Fair Value Measurements (the “Statement”) in this reporting period. This Statement provides a single definition of fair value, a hierarchy for measuring fair value and expanded disclosures about fair value measurements.

Various inputs are used in determining the value of the fund’s assets or liabilities carried at market value. These inputs are categorized into three broad levels. Level 1 includes 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 unobservable inputs, which may include the adviser’s own assumptions in determining the fair value of investments. Other financial instruments are derivative instruments not reflected in total investments, such as futures, forwards, swap contracts and written options, which are valued at the unrealized appreciation/depreciation on the instrument. The following is a summary of the levels used as of August 31, 2008 in valuing the fund’s assets or liabilities carried at market value:


	Level 1			Level 2		Level 3		Total
Investments in Securities	$	—		$	306,300,853	$	—	$	306,300,853
Other Financial Instruments	$	(17,170	)	$	—	$	—	$	(17,170	)

(2) Portfolio Securities

The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund, as computed on a federal income tax basis, are as follows:


Aggregate Cost	$	290,758,196

Gross unrealized appreciation	$	7,342,126
Gross unrealized depreciation		(14,297,019	)

Net unrealized appreciation (depreciation)	$	(6,954,893	)

The aggregate cost above includes prior fiscal year end tax adjustments.

(3) Derivative Contracts at 8/31/08

Futures contracts outstanding at 8/31/08


Description	Contracts	Value		Expiration Date	Unrealized Appreciation (Depreciation)
U.S. Treasury Note (Short)	171	$	20,060,438	Dec-08	$	19,441
U.S. Treasury Note 10 yr (Short)	496		57,288,000	Dec-08		(36,611	)

					$	(17,170	)

At August 31, 2008, the fund had sufficient cash and/or other liquid securities to cover any commitments under these derivative contracts.

ITEM 2.

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 Form N-Q, 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 registrant’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.

ITEM 3.

EXHIBITS.

File as exhibits as part of this Form 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.

Notice

A copy of the Agreement and 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 HIGH INCOME MUNICIPAL TRUST


By (Signature and Title)*		ROBERT J. MANNING
		Robert J. Manning, President

Date: October 15, 2008

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)*		ROBERT J. MANNING
		Robert J. Manning, President (Principal Executive Officer)

Date: October 15, 2008


By (Signature and Title)*		MARIA F. DWYER
		Maria F. Dwyer, Treasurer (Principal Financial Officer and Accounting Officer)

Date: October 15, 2008

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