UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number: 811-06434 Morgan Stanley Insured Municipal Trust (Exact name of registrant as specified in charter) 1221 Avenue of the Americas, New York, New York 10020 (Address of principal executive offices) (Zip code) Ronald E. Robison 1221 Avenue of the Americas, New York, New York 10020 (Name and address of agent for service) Registrant's telephone number, including area code: 212-762-4000 Date of fiscal year end: October 31, 2006 Date of reporting period: July 31, 2006 ITEM 1. SCHEDULE OF INVESTMENTS. The Trust's schedule of investments as of the close of the reporting period prepared pursuant to Rule 12-12 of Regulation S-X is as follows: MORGAN STANLEY INSURED MUNICIPAL TRUST PORTFOLIO OF INVESTMENTS July 31, 2006 (unaudited) PRINCIPAL AMOUNT IN COUPON MATURITY THOUSANDS RATE DATE VALUE --------- ---- ---- ----- TAX-EXEMPT MUNICIPAL BONDS (142.5%) General Obligation (24.2%) $10,000 North Slope Borough, Alaska, Ser 2000 B (MBIA) 0.00% 06/30/10 $8,540,100 3,000 Los Angeles, California, Ser 2004 A (MBIA) 5.00 09/01/24 3,124,320 3,000 Florida Board of Education, Capital Outlay Refg Ser 2002 C (MBIA) 5.00 06/01/20 3,127,530 Honolulu City & County, Hawaii, 2,500 ROLS RR II R 237-2 (MBIA) 5.215+++ 03/01/25 2,804,950 2,500 ROLS RR II R 237-3 (MBIA) 5.215+++ 03/01/26 2,748,325 Chicago, Illinois, 8,000 Refg Ser 1992 (Ambac) 6.25 01/01/11 8,634,480 2,000 Refg 2001 A (MBIA) 0.00++ 01/01/21 1,730,480 2,000 Refg 2001 A (MBIA) 0.00++ 01/01/22 1,727,380 Illinois, 10,000 Ser 2001 (MBIA) 5.375 04/01/15 10,952,100 10,000 Ser 2001 (MBIA) 5.375 04/01/16 10,948,400 3,000 Brainerd Independent School District #181, Minnesota, 5.375 02/01/18 3,217,290 Ser 2002 A (FGIC) 1,000 Omaha Convention Hotel Corp, Nebraska, Ser 2002 A (Ambac) 5.50 04/01/18 1,072,970 4,000 Clark County, Nevada, Transportation Impr Ltd Tax 6.50 06/01/17 4,769,600 Ser 06/01/92 B (Ambac) 1,880 King County, Washington, Refg 1998 Ser B (MBIA) 5.25 01/01/34 1,925,834 -------- ------------- 62,880 65,323,759 -------- ------------- Educational Facilities Revenue (5.3%) 2,000 Arizona Board of Regents, Arizona State University Ser 2004 5.00 09/01/30 2,055,460 COPs (Ambac) University of California, 1,000 Limited Projects Ser 2005 B (FSA) 5.00 05/15/30 1,033,480 2,000 Multi Purpose Ser Q (FSA) 5.00 09/01/31 2,061,840 1,735 Orange County Educational Facilities Authority, Florida, Rollins 5.125 12/01/28 1,803,637 College Ser 2005 (Ambac) Fulton County Development Authority, Georgia, 900 Morehouse College Ser 2000 (Ambac) 6.25 12/01/21 989,694 1,700 Morehouse College Ser 2000 (Ambac) 5.875 12/01/30 1,839,179 2,500 University of North Carolina, Ser 2000 (Ambac) 5.25 10/01/20 2,640,300 2,000 University of North Carolina at Wilmington, Student Housing 5.00 06/01/36 2,046,480 Ser 2005 COPs (FGIC) -------- ------------- 13,835 14,470,070 -------- ------------- Electric Revenue (14.1%) 2,000 Arkansas River Power Authority, Colorado, Power Ser 2006 (XLCA) 5.25 10/01/40 2,095,380 2,000 Indiana Municipal Power Agency, Power Supply 2004 Ser A (FGIC) 5.00 01/01/32 2,053,120 1,000 Long Island Power Authority, New York, Ser 2006 A (XLCA) 5.00 12/01/26 1,038,110 South Carolina Public Service Authority, 9,325 Ser 2002 B (FSA) 5.375 01/01/17 9,927,209 2,000 Ser 2003 A (Ambac) 5.00 01/01/27 2,060,600 10,000 Lower Colorado River Authority, Texas, Refg Ser 1999 A (FSA) 5.875 05/15/16 10,625,400 10,000 Seattle, Washington, Light & Power Refg Rev 2001 (FSA) 5.125 03/01/26 10,250,900 -------- ------------- 36,325 38,050,719 -------- ------------- Hospital Revenue (4.6%) 3,000 Indiana Health Facilities Financing Authority, Community Health 5.00 05/01/35 3,079,980 Ser 2005 A (Ambac) 2,000 Louisiana Public Facilities Authority, Baton Rouge General Medical 5.25 07/01/33 2,087,380 Center-FHA Insured Mtge Ser 2004 (MBIA) 4,000 Minneapolis, Minnesota, Fairview Health 2005 Ser D (Ambac) 5.00 11/15/34 4,121,400 2,000 New York State Dormitory Authority, Montefiore Hospital - FHA 5.00 08/01/29 2,063,580 Insured Mtge Ser 2004 (FGIC) 1,000 Medical University Hospital Authority, South Carolina, FHA Insured 5.25 02/15/25 1,053,210 Mtge Refg Ser 2004 A (MBIA) -------- ------------- 12,000 12,405,550 -------- ------------- Industrial Development/Pollution Control Revenue (4.3%) 5,000 Humboldt County, Nevada, Sierra Pacific Power Co Refg Ser 1987 6.55 10/01/13 5,106,750 (Ambac) 5,000 New York State Energy Research & Development Authority, 5.50 01/01/21 5,106,500 Brooklyn Union Gas Co 1996 Ser (MBIA)** 1,500 Delaware County Industrial Development Authority, Pennsylvania, 5.00 11/01/37 1,527,360 Aqua Inc Ser A 2005 (AMT) (FGIC) -------- ------------- 11,500 11,740,610 -------- ------------- Mortgage Revenue - Multi-Family (1.4%) 3,695 New Jersey Housing Mortgage Finance Authority, Home Buyer 5.875 10/01/31 3,708,154 Ser 2000 CC (AMT) (MBIA) -------- ------------- Public Facilities Revenue (5.0%) 2,000 Kern County Board of Education, California, Refg Ser 2006 A 5.00 06/01/31 2,061,780 COPs (MBIA) 4,000 District of Columbia Ballpark, Ser B-1 5.00 02/01/31 4,114,280 2,000 Missouri Joint Municipal Electrical Utility, Plum Point Project 5.00 01/01/25 2,089,280 1,500 Albuquerque, New Mexico, Gross Receipts Lodgers' Tax Refg 5.00 07/01/37 1,535,880 Ser 2004 A (FSA) 1,685 Oregon Department of Administrative Services, Ser 2005 B 5.00 11/01/24 1,751,288 COPs (FGIC) 2,000 Pennsylvania Public School Building Authority, Philadelphia School 5.00 06/01/33 2,044,560 District Ser 2003 (FSA) -------- ------------- 13,185 13,597,068 -------- ------------- Recreational Facilities Revenue (8.9%) 6,500 Denver Convention Center Hotel Authority, Colorado, Refg 5.00 12/01/35 6,686,030 Ser 2006 (XLCA) Iowa, 3,600 Vision Iowa Ser 2001 (MBIA) 5.50 02/15/19 4,043,160 2,500 Vision Iowa Ser 2001 (MBIA) 5.50 02/15/20 2,815,025 10,000 Hamilton County, Ohio, Sales Tax Ser 2000 (Ambac) 5.25 12/01/32 10,407,400 -------- ------------- 22,600 23,951,615 -------- ------------- Tax Allocation Revenue (0.9%) 2,390 San Jose Redevelopment Agency, California, Merged Area 5.00 08/01/32 2,431,108 Ser 2002 (MBIA) -------- ------------- Transportation Facilities Revenue (31.2%) 5,000 Denver City & County, Colorado, Airport Refg Ser 2000 A 6.00 11/15/18 5,364,700 (AMT) (Ambac) Miami Dade County, Florida, 2,155 Miami Int'l Airport Refg Ser 2003 B (AMT) (MBIA) 5.25 10/01/18 2,265,745 2,270 Miami Int'l Airport Refg Ser 2003 B (AMT) (MBIA) 5.25 10/01/19 2,376,713 5,000 Atlanta, Georgia, Airport Ser 2004 C (FSA) 5.00 01/01/33 5,122,900 5,000 Hawaii, Airports Refg Ser 2001 (AMT) (FGIC) 5.25 07/01/21 5,172,900 Chicago, Illinois, 3,000 O'Hare Int'l Airport, Ser 2005 (MBIA) 5.25 01/01/25 3,188,790 2,000 O' Hare Int'l Airport Third Lien Ser 2003 B-2 (AMT) (FSA) 5.75 01/01/23 2,171,180 4,000 Regional Transportation Authority, Illinois, Refg Ser 1999 (FSA) 5.75 06/01/21 4,604,760 2,500 Maryland Economic Development Corporation, Maryland Aviation 5.375 06/01/22 2,633,900 Administration Ser 2003 (AMT) (FSA) 2,000 Massachusetts Turnpike Authority, Metropolitan Highway ROLS RRII 5.701+++ 01/01/37 2,103,120 R536 (MBIA) 5,000 Minneapolis - St Paul Metropolitan Airports Commission, 5.25 01/01/32 5,174,800 Minnesota, Ser 2001 C (FGIC) 5,000 Nevada Department of Business & Industry, Las Vegas Monorail 0.00 01/01/21 2,523,400 1st Tier Ser 2000 (Ambac) 2,000 New Jersey Transportation Trust Fund Authority, Ser 2005 C (FGIC) 5.25 06/15/20 2,139,580 5,000 New Jersey Turnpike Authority, Ser 2003 A (Ambac) 5.00 01/01/30 5,145,500 Metropolitan Transportation Authority, New York, 6,805 State Service Contract Refg Ser 2002 B (MBIA) 5.50 07/01/20 7,350,829 10,000 Transportation Refg Ser 2002 A (Ambac) 5.50 11/15/17 10,846,400 2,000 Transportation Refg Ser 2002 A (FGIC) 5.00 11/15/25 2,067,400 Pennsylvania Turnpike Commission, 4,000 Ser R 2001 (Ambac) 5.00 12/01/26 4,135,800 4,000 Ser A 2004 (Ambac) 5.00 12/01/34 4,127,640 3,000 Harris County, Texas, Toll Road Sr Lien Ser 2005 A (FSA) 5.25 08/15/35 3,111,330 2,500 Port of Seattle, Washington, Ser 2001 B (AMT) (MBIA) 5.625 02/01/24 2,628,525 -------- ------------- 82,230 84,255,912 -------- ------------- Water & Sewer Revenue (35.7%) 1,000 Phoenix Civic Improvement Corporation, Arizona, Jr Lien 5.00 07/01/27 1,035,310 Wastewater Ser 2004 (MBIA) 4,000 Eastern Municipal Water District, California, Water Ser 2006 A 5.00 07/01/32 4,122,880 COPs (MBIA) 5,000 Los Angeles Department Water & Power, California, 2006 Ser A-1 5.00 07/01/40 5,155,600 (Ambac) 2,000 Sacramento County, California, Sanitation District Financing 5.00 12/01/36 2,079,440 Authority 5,000 San Diego County Water Authority, California, Ser 2004 A COPs 5.00 05/01/29 5,158,750 (FSA) 10,000 Tampa Bay Water, Florida, Ser 2001 B (FGIC) 5.00 10/01/31 10,193,000 2,000 Atlanta, Georgia, Water & Wastewater Ser 1999 A (FGIC) 5.00 11/01/29 2,025,560 5,000 Honolulu City & County, Hawaii, Wastewater Ser 2001 (Ambac) 5.125 07/01/31 5,126,950 10,000 Louisville & Jefferson County Metropolitan Sewer District, 5.75 05/15/33 10,634,100 Kentucky, Ser 1999 A (FGIC) 3,800 Louisville Board of Water Works, Kentucky, Water Ser 2000 (FSA) 5.50 11/15/25 3,997,866 5,000 Detroit, Michigan, Sewage Disposal Ser 2001 A (FGIC) 5.125 07/01/31 5,165,200 5,000 Grand Strand Water & Sewer Authority, South Carolina, 5.00 06/01/31 5,107,400 Refg Ser 2001 (FSA) Austin, Texas, 1,250 Water & Wastewater Refg Ser 2002 A (FSA) 6.135 05/15/27 1,376,000 2,000 Water & Wastewater Ser 2004 A (Ambac) 5.00 11/15/27 2,063,520 15,000 Houston, Texas, Combined Utility First Lien Refg 2004 Ser A (FGIC) 5.25 05/15/23 15,933,750 San Antonio, Texas, 2,000 Water & Refg Ser 2002 (FSA) 5.50 05/15/18 2,144,460 2,500 Water & Refg Ser 2002 (FSA) 5.50 05/15/20 2,675,250 2,000 Water & Refg Ser 2002 A (FSA) 5.00 05/15/32 2,039,600 Wichita Falls, Texas, 2,000 Water & Sewer Ser 2001 (Ambac) 5.375 08/01/20 2,114,500 3,000 Water & Sewer Ser 2001 (Ambac) 5.375 08/01/24 3,167,190 5,000 King County, Washington, Sewer Refg 2001 (FGIC) 5.00 01/01/31 5,098,350 -------- ------------- 92,550 96,414,676 -------- ------------- Other Revenue (3.3%) 2,500 California, Economic Recovery Ser 2004 A (MBIA) 5.00 07/01/15 2,677,775 6,000 Golden State Tobacco Securitization Corporation, California, 5.00 06/01/38 6,156,900 -------- ------------- Enhanced Asset Backed Ser 2005 A (FGIC) 8,500 8,834,675 -------- ------------- Refunded (3.6%) 3,000 San Diego Unified School District, California, Ser 2003 E (FSA) 5.25 07/01/23# 3,261,570 3,000 Utah Board of Regents, University of Utah - Huntsman Cancer 5.50 04/01/18+ 3,200,580 Institute Refg Ser 2000 A (MBIA) 3,000 Alexandria Industrial Development Authority, Virginia, Institute for 5.90 10/01/30+ 3,269,160 -------- ------------- Defense Analysis Ser 2000 A (Ambac) 9,000 9,731,310 -------- ------------- 370,690 TOTAL TAX-EXEMPT MUNICIPAL BONDS (Cost $368,712,462) 384,915,226 -------- ------------- SHORT-TERM TAX-EXEMPT MUNICIPAL OBLIGATIONS (4.1%) 400 Indiana Health Facility Financing Authority, Clarian Health 3.70* 03/01/30 400,000 Ser 2000 B (Demand 08/01/06) 10,100 San Antonio Educational Facilities Corporation, Texas, Trinity 3.68* 06/01/33 10,100,000 University Ser 2002 (Demand 08/01/06) 600 Roanoke Industrial Development Authority, Virginia, Carilion Health 3.68* 07/01/27 600,000 1997 A (Demand 08/01/05) 11,100 TOTAL SHORT-TERM TAX-EXEMPT MUNICIPAL OBLIGATIONS (Cost $11,100,000) 11,100,000 -------- ------------- $381,790 TOTAL INVESTMENTS (Cost $379,812,462) (a)(b) 146.6% 396,015,226 ======== OTHER ASSETS IN EXCESS OF LIABILITIES 1.5 4,071,058 PREFERRED SHARES OF BENEFICIAL INTEREST (48.1) (130,000,000) --------- ------------- NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS 100.0% $270,086,284 ========= ============= ---------- Note: The categories of investments are shown as a percentage of net assets applicable to common shareholders. AMT Alternative Minimum Tax. COPs Certificates of Participation. FHA Federal Housing Authority. ROLS Reset Option Longs. (Illiquid securities). # Crossover refunded to call date shown. + Prerefunded to call date shown. ++ Security is a "step-up" bond where the coupon increases on a predetermined future date. +++ Current coupon rate for residual interest bond. This rate resets periodically as the auction rate on the related security changes. Positions in inverse floating rate municipal obligation have a value of $9,032,395, which represents 3.3% of net assets applicable to common shareholders. * Current coupon of variable rate demand obligation. ** A portion of this security has been physically segregated in connection with open futures contracts in the amount of $217,500. (a) Securities have been designated as collateral in an amount equal to $46,737,188 in connection with open futures contracts. (b) The aggregate cost for federal income tax purposes is $379,807,273. The aggregate gross unrealized appreciation is $16,504,032 and the aggregate gross unrealized depreciation is $296,079, resulting in net unrealized appreciation of $16,207,953. Bond Insurance: AGC Assured Guaranty Corporation. Ambac Ambac Assurance Corporation. FGIC Financial Guaranty Insurance Company. FSA Financial Security Assurance Inc. MBIA Municipal Bond Investors Assurance Corporation. XLCA XL Capital Assurance Inc. FUTURES CONTRACTS OPEN AT JULY 31, 2006: NUMBER OF DESCRIPTION, DELIVERY UNDERLYING FACE UNREALIZED CONTRACTS LONG/SHORT MONTH AND YEAR AMOUNT AT VALUE DEPRECIATION ---------------------- -------------------- -------------------------------------- ------------------------ ------------------- 150 Short U.S. Treasury Notes 10 year, $(15,904,688) $(119,944) September 2006 300 Short U.S. Treasury Notes 5 year, (31,265,625) (96,918) September 2006 ------------------- Total Unrealized Depreciation....... $(216,862) =================== GEOGRAPHIC SUMMARY OF INVESTMENTS BASED ON MARKET VALUE AS A PERCENT OF TOTAL INVESTMENTS JULY, 2006 (UNAUDITED) Alaska 2.2% Arizona 0.8 California 9.9 Colorado 3.6 District of Columbia 1.0 Florida 5.0 Georgia 2.5 Hawaii 4.0 Illinois 11.1 Indiana 1.4 Iowa 1.7 Kentucky 3.7 Louisiana 0.5 Maryland 0.7 Massachusetts 0.5 Michigan 1.3 Missouri 0.5 Minnesota 3.2 Nebraska 0.3 Nevada 3.1 New Jersey 2.8 New Mexico 0.4 New York 7.2 North Carolina 1.2 Ohio 2.6 Oregon 0.4 Pennsylvania 3.0 South Carolina 4.6 Texas 14.0 Utah 0.8 Virginia 1.0 Washington 5.0 Total+ 100.0% ===== ---------- + Does not include open short futures contracts with an underlying face amount of $47,170,313 with unrealized depreciation of $216,862. ITEM 2. CONTROLS AND PROCEDURES. (a) The Trust's principal executive officer and principal financial officer have concluded that the Trust's disclosure controls and procedures are sufficient to ensure that information required to be disclosed by the Trust in this Form N-Q was recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms, based upon such officers' evaluation of these controls and procedures as of a date within 90 days of the filing date of the report. (b) There were no changes in the Trust's internal control over financial reporting that occurred during the registrant's fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Trust's internal control over financial reporting. ITEM 3. EXHIBITS. (a) A separate certification for each principal executive officer and principal financial officer of the registrant are attached hereto. 2 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. Morgan Stanley Insured Municipal Trust /s/ Ronald E. Robison Ronald E. Robison Principal Executive Officer September 21, 2006 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed by the following persons on behalf of the registrant and in the capacities and on the dates indicated. /s/ Ronald E. Robison Ronald E. Robison Principal Executive Officer September 21, 2006 /s/ Francis Smith Francis Smith Principal Financial Officer September 21, 2006 3