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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

Invesco Insured Municipal Trust

(Exact name of registrant as specified in charter)

1555 Peachtree Street, N.E., Atlanta, Georgia 30309

(Address of principal executive offices) (Zip code)

Philip A. Taylor 1555 Peachtree Street, N.E., Atlanta, Georgia 30309

(Name and address of agent for service)

Registrant’s telephone number, including area code: (713) 626-1919

Date of fiscal year end: 10/31

Date of reporting period: 07/31/10

 

 

Item 1. Schedule of Investments.

Invesco Insured Municipal Trust

Quarterly Schedule of Portfolio Holdings July 31,2010

invesco.com/us           MS-CE-IMUNI-QTR-1 07/10            Invesco Advisers, Inc.

Schedule of Investments
July 31, 2010
(unaudited)

														Principal
		Interest				Maturity								Amount
		Rate				Date								(000)				Value
Municipal Obligations (147.8%)
Arizona (2.2%)
Arizona State University, Research Infrastructure Projects (COP) (AMBAC Insd) (a)			5.00	%			09/01/30							$	2,000			$	2,008,340
Glendale Industrial Development Authority, Midwestern University, Ser 2010			5.00				05/15/35								350				348,989
Glendale Industrial Development Authority, Midwestern University, Ser 2010			5.125				05/15/40								350				351,712
Maricopa County Pollution Control, Arizona Public Service Co., Ser 2009 A			6.00				05/01/29								550				592,388
Phoenix Civic Improvement Corp., Jr Lien Wastewater Ser 2004 (NATL-RE Insd) (a)			5.00				07/01/27								1,000				1,042,550
State of Arizona, Ser 2008 A (COP) (AGM Insd) (a)			5.00				09/01/27								1,305				1,341,005
																			5,684,984
California (25.5%)
Alameda County Joint Powers Authority, Ser 2008 (AGM Insd) (a)			5.00				12/01/24								1,205				1,268,757
Alhambra Unified School District, Ser 2009 B (AGC Insd) (a)(b)			0.00				08/01/35								1,355				285,268
Alhambra Unified School District, Ser 2009 B (AGC Insd) (a)(b)			0.00				08/01/36								2,190				431,014
Alvord Unified School District, Election of 2007 Ser 2007 A (AGM Insd) (a)			5.00				08/01/27								945				997,249
Anaheim Public Financing Authority, Electric Ser 2007-A (NATL-RE Insd) (a)(c)			4.50				10/01/37								16,000				15,347,680
Beverly Hills Unified School District, Election of 2008 Ser 2009 (b)			0.00				08/01/26								960				440,342
Beverly Hills Unified School District, Election of 2008 Ser 2009 (b)			0.00				08/01/31								1,850				619,176
California Health Facilities Financing Authority, Scripps Memorial Hospital Ser 2010 A			5.00				11/15/36								1,700				1,709,928
California State Department of Water Resources, Power Supply Ser 2008 H (AGM Insd) (a)			5.00				05/01/22								2,500				2,765,625
City & County of San Francisco, City Buildings Ser 2007 A (COP) (NATL-RE & FGIC Insd) (a)			4.50				09/01/37								2,000				1,870,700
City & County of San Francisco, Laguna Ref Ser R-3 (AGC Insd) (a)(c)			5.00				06/15/28								1,000				1,042,050
City of Los Angeles, Ser 2004 A (NATL-RE Insd) (a)			5.00				09/01/24								3,000				3,236,820
Clovis Unified School District, Election of 2004 Ser A (NATL-RE & FGIC Insd) (a)(b)			0.00				08/01/29								480				159,874
Dry Creek Joint Elementary School District, Election 2008 Ser 2009 E (b)			0.00				08/01/44								1,090				118,254
Dry Creek Joint Elementary School District, Election 2008 Ser 2009 E (b)			0.00				08/01/45								6,270				637,220
Dry Creek Joint Elementary School District, Election 2008 Ser 2009 E (b)			0.00				08/01/48								4,610				381,477
Eastern Municipal Water District, Water & Sewer Ref, Ser 2006 A (COP) (NATL-RE Insd) (a)			5.00				07/01/32								4,000				4,125,840
El Segundo Unified School District, Election of 2008 Ser 2009 A (b)			0.00				08/01/32								2,705				714,959
Fontana Unified School District, Ser B (AGM Insd) (a)(b)			0.00				08/01/30								4,530				1,359,136
Golden State Tobacco Securitization Corp., Enhanced Asset Backed Ser 2005 A (FGIC Insd) (a)			5.00				06/01/38								6,000				5,598,780
Kern County Board of Education, Ref Ser 2006 A (COP) (NATL-RE Insd) (a)			5.00				06/01/31								2,000				2,002,880
Menifee Union School District, Election of 2008 Ser C (AGC Insd) (a)(b)			0.00				08/01/37								1,450				269,497
Moreland School District, Ser 2014 C (AMBAC Insd) (a)(b)			0.00				08/01/29								1,505				461,177
Oak Grove School District, Election 2008 Ser A (b)			0.00				08/01/28								1,080				376,499
Oakland Joint Powers Financing Authority, Oakland Administration Buildings Ser 2008 B (AGC Insd) (a)			5.00				08/01/25								500				524,695

See accompanying notes which are an integral part of this schedule.

Invesco Insured Municipal Trust

														Principal
		Interest				Maturity								Amount
		Rate				Date								(000)				Value
Oakland Joint Powers Financing Authority, Oakland Administration Buildings, Ser 2008 B (AGC Insd) (a)			5.00	%			08/01/23							$	725			$	767,768
Patterson Joint Unified School District, 2008 Election Ser 2009 B (AGM Insd) (a)(b)			0.00				08/01/47								5,700				505,419
Patterson Joint Unified School District, 2008 Election Ser 2009 B (AGM Insd) (a)(b)			0.00				08/01/48								7,670				634,692
Patterson Joint Unified School District, Election of 2008 Ser 2009 B (AGM Insd) (a)(b)			0.00				03/01/49								4,240				336,910
Port of Oakland, Ser 2002 L (AMT) (NATL-RE & FGIC Insd) (a)(d)			5.00				11/01/12								110				121,286
Port of Oakland, Ser 2002 L (AMT) (NATL-RE & FGIC Insd) (a)			5.00				11/01/21								890				900,173
Poway Unified School District, School Facilities Improvement District No. 07-1, 2008 Election Ser A (b)			0.00				08/01/28								3,210				1,140,770
Poway Unified School District, School Facilities Improvement District No. 07-1, 2008 Election Ser A (b)			0.00				08/01/31								3,470				1,010,742
San Diego County Water Authority, Ser 2004 A (COP) (AGM Insd) (a)(c)			5.00				05/01/29								5,000				5,174,750
University of California, Limited Projects Ser 2005 B (AGM Insd) (a)			5.00				05/15/30								1,000				1,029,300
University of California, Ser 2007-J (AGM Insd) (a)(c)			4.50				05/15/31								3,310				3,332,475
University of California, Ser 2007-J (AGM Insd) (a)(c)			4.50				05/15/35								2,690				2,640,558
																			64,339,740
Colorado (3.3%)
Arkansas River Power Authority, Power Ser 2006 (XLCA Insd) (a)			5.25				10/01/40								2,000				1,843,980
City & County of Denver, Airport Ref Ser 2000 A (AMT) (AMBAC Insd) (a)			6.00				11/15/18								5,000				5,064,600
Denver Convention Center Hotel Authority, Ref Ser 2006 (XLCA Insd) (a)			5.00				12/01/35								1,500				1,309,305
																			8,217,885
Connecticut (0.5%)
Connecticut State Health & Educational Facility Authority, Quinnipiac University Ser K-1 (NATL-RE Insd) (a)			5.00				07/01/27								1,225				1,284,094
District of Columbia (6.4%)
District of Columbia, Income Tax, Ser 2009 A (c)			5.25				12/01/27								2,100				2,364,600
District of Columbia, Ser 2008 E (BHAC Insd) (a)(c)			5.00				06/01/27								8,000				8,525,060
District of Columbia Ballpark, Ser 2006 B-1 (NATL-RE & FGIC Insd) (a)			5.00				02/01/31								4,000				4,001,880
District of Columbia Water & Sewer Authority, Ref Sub-Lien Ser 2008 A (AGC Insd) (a)			5.00				10/01/28								500				535,245
District of Columbia Water & Sewer Authority, Ref Sub-Lien Ser 2008 A (AGC Insd) (a)			5.00				10/01/29								625				665,469
																			16,092,254
Florida (9.7%)
Citizens Property Insurance Corp., High Risk Ser A-1			5.00				06/01/14								2,200				2,338,688
City of Port St Lucie, Utility System Refg Ser 2009 (AGC Insd) (a)			5.00				09/01/29								1,000				1,027,400
County of Miami-Dade, Building Better Communities Program Ser 2009 B-1			6.00				07/01/38								1,000				1,119,810
County of Miami-Dade, Miami Int’l Airport Ref Ser 2003 B (AMT) (NATL-RE Insd) (a)			5.25				10/01/18								2,155				2,237,235
County of Miami-Dade, Miami Int’l Airport Ref Ser 2003 B (AMT) (NATL-RE Insd) (a)			5.25				10/01/19								2,270				2,344,184
County of Miami-Dade, Water & Sewer (AGM Insd) (a)			5.00				10/01/39								1,600				1,650,768
Miami-Dade County Educational Facilities Authority, University of Miami Ser 2008 A (CR) (BHAC Insd) (a)			5.50				04/01/38								1,500				1,578,825
Mid-Bay Bridge Authority, Ref Ser 2008 A (AGC Insd) (a)			5.00				10/01/27								1,265				1,293,007
Orange County School Board, Series 2008 B (COP) (AGC Insd) (a)(e)(f)			0.28				08/01/32								1,000				1,000,000
Palm Beach County Solid Waste Authority, Ser 2009 (BHAC Insd) (a)			5.50				10/01/23								1,200				1,387,308
Tampa Bay Water Utility System Revenue, Ser 2001 B (NATL-RE & FGIC Insd) (a)			5.00				10/01/31								6,000				6,197,700

See accompanying notes which are an integral part of this schedule.

Invesco Insured Municipal Trust

														Principal
		Interest				Maturity								Amount
		Rate				Date								(000)				Value
Tampa Sports Authority, Sales Tax Ref Ser 2005 (AGM Insd) (a)			5.00	%			01/01/26							$	2,185			$	2,274,432
																			24,449,357
Georgia (3.2%)
City of Atlanta, Airport Passenger Facilities Sub-Lien Ser 2004 C (AGM Insd) (a)(c)			5.00				01/01/33								5,000				5,062,750
City of Atlanta, Water & Wastewater Ser 1999 A (NATL-RE & FGIC Insd) (a)			5.00				11/01/29								2,000				2,001,460
Fulton County Development Authority, Morehouse College Ser 2000 (AMBAC Insd) (a)(d)			6.25				12/01/10								900				926,757
																			7,990,967
Hawaii (6.2%)
City & County of Honolulu, Ser 2003 A (NATL-RE Insd) (a)(c)			5.25				03/01/26								5,000				5,299,850
City & County of Honolulu, Ser 2003 A (NATL-RE Insd) (a)(c)			5.25				03/01/25								5,000				5,414,100
State of Hawaii, Airports Ref Ser 2001 (AMT) (NATL-RE & FGIC Insd) (a)			5.25				07/01/21								5,000				5,044,650
																			15,758,600
Idaho (0.9%)
Idaho Housing & Finance Association, Federal Highway Trust Ser 2008 A (RANs) (AGC Insd) (a)			5.25				07/15/25								2,065				2,277,881
Illinois (16.0%)
Chicago Transit Authority, Federal Transit Administration Section 5309 Ser 2008 (AGC Insd) (a)			5.25				06/01/26								1,370				1,440,363
City of Chicago, O’ Hare Int’l Airport Third Lien Ser 2003 B-2 (AMT) (AGM Insd) (a)			5.75				01/01/23								2,000				2,097,060
City of Chicago, Project & Ref Ser 2007 A (CR) (FGIC & AGM Insd) (a)(c)(h)			5.00				01/01/37								6,070				6,196,620
City of Chicago, Second Lien Water Ser 2008 (AGM Insd) (a)			5.00				11/01/27								940				1,000,019
City of Chicago, Ser A 2001 (NATL-RE Insd) (a)(g)			0.00				01/01/21								2,000				2,137,480
City of Chicago, Ser A 2001 (NATL-RE Insd) (a)(g)			0.00				01/01/22								2,000				2,136,780
City of Chicago, Ser A 2005 (NATL-RE Insd) (a)			5.25				01/01/25								3,000				3,134,160
De Kalb County Community Unit School District No. 428, (AGM Insd) (a)			5.00				01/01/27								670				716,176
De Kalb County Community Unit School District No. 428, (AGM Insd) (a)			5.00				01/01/28								305				323,800
Illinois Finance Authority, Northwestern Memorial Hospital, Ser 2009 B			5.75				08/15/30								1,635				1,782,870
Illinois Finance Authority, Swedish Covenant Hospital Ser 2010 A			5.75				08/15/29								1,300				1,315,184
Kendall Kane & Will Counties Community Unit School District No. 308, (AGM Insd) (a)(b)			0.00				02/01/27								5,375				2,343,500
Regional Transportation Authority, Ref Ser 1999 (AGM Insd) (a)			5.75				06/01/21								4,000				4,737,360
State of Illinois, Ser 2001 (NATL-RE Insd) (a)(c)			5.38				04/01/15								10,000				11,182,600
																			40,543,972
Iowa (4.3%)
State of Iowa, IJOBS Program Ser 2009 A (c)(h)			5.00				06/01/25								1,810				2,001,697
State of Iowa, IJOBS Program Ser 2009 A (c)(h)			5.00				06/01/26								1,355				1,485,608
State of Iowa, Ser 2001 (NATL-RE Insd) (a)			5.50				02/15/19								3,600				4,330,512
State of Iowa, Ser 2001 (NATL-RE Insd) (a)			5.50				02/15/20								2,500				2,991,825
																			10,809,642
Kansas (0.7%)
Kansas Development Finance Authority Hospital Revenue, Adventist Health System Sunbelt Obligated Group Ser 2009 C			5.50				11/15/29								615				666,094
Wyandotte County-Kansas City Unified Government, Utility System Improvement, Ser 2009 A (BHAC Insd) (a)			5.25				09/01/34								1,060				1,132,409
																			1,798,503
Kentucky (2.6%)
Kentucky State Property & Buildings Commission, Ref Project No. 93 Ser 2009 (AGC Insd) (a)			5.25				02/01/28								1,640				1,793,947
Louisville & Jefferson County Visitors & Convention Commission, Ser 2004 B (AGM Insd) (a)(e)(f)			0.27				12/01/22								1,000				1,000,000

See accompanying notes which are an integral part of this schedule.

Invesco Insured Municipal Trust

														Principal
		Interest				Maturity								Amount
		Rate				Date								(000)				Value
Louisville Waterworks Board, Ser 2000 (AGM Insd) (a)(d)			5.50	%			11/15/10							$	3,800			$	3,857,722
																			6,651,669
Louisiana (0.6%)
Louisiana Public Facilities Authority, Baton Rouge General Medical Center-FHA Insured Mortgage Ser 2004 (NATL-RE Insd) (a)			5.25				07/01/33								1,500				1,516,590
Maryland (1.0%)
Maryland Economic Development Corp., Aviation Administration Ser 2003 (AMT) (AGM Insd) (a)			5.375				06/01/22								2,500				2,583,225
Massachusetts (5.7%)
Massachusetts Health & Educational Facilities Authority, Boston College Ser M-2			5.50				06/01/30								2,000				2,398,800
Massachusetts Health & Educational Facilities Authority, Harvard University Ser A (c)			5.00				11/15/36								6,460				7,323,831
Massachusetts Health & Educational Facilities Authority, Massachusetts Institute of Technology Ser O (c)			5.50				07/01/36								2,090				2,367,322
Massachusetts Water Resources Authority, Ser 2007 B (AGM Insd) (a)			5.25				08/01/31								2,000				2,324,880
																			14,414,833
Michigan (1.5%)
City of Detroit Water Supply System, Ref Ser 2006 C (AGM Insd) (a)			5.00				07/01/26								1,200				1,228,332
Wayne State University, Ref Ser 2008 (AGM Insd) (a)			5.00				11/15/29								1,190				1,256,854
Western Michigan University, Ser 2008 (AGM Insd) (a)			5.00				11/15/23								1,125				1,216,271
																			3,701,457
Minnesota (1.6%)
City of Minneapolis, Fairview Health Ser 2005 D (AMBAC Insd) (a)			5.00				11/15/34								4,000				4,018,160
Missouri (0.8%)
Missouri Joint Municipal Electric Utility Commission, Plum Point Ser 2006 (NATL-RE Insd) (a)			5.00				01/01/25								2,000				2,015,960
Nevada (5.3%)
County of Clark, Transportation Improvement Ltd. Tax Ser 1992 B (AMBAC Insd) (a)			6.50				06/01/17								4,000				4,949,880
State of Nevada, Capital Improvement & Cultural Affairs Ser 2008 C (AGM Insd) (a)(c)			5.00				06/01/26								8,000				8,530,480
																			13,480,360
New Jersey (4.0%)
New Jersey Economic Development Authority, School Facilities Construction Ser N-1 (AMBAC Insd) (a)			5.50				09/01/24								1,195				1,374,704
New Jersey Economic Development Authority, Student Housing Project Ser 2010 A			5.875				06/01/42								710				720,792
New Jersey Educational Facilities Authority, Rowan University Ser 2008 B (AGC Insd) (a)			5.00				07/01/26								510				551,499
New Jersey St. Housing & Mortgage Finance Agency, Home Buyer Ser 2000 CC (AMT) (NATL-RE Insd) (a)			5.875				10/01/31								2,295				2,298,397
New Jersey State Turnpike Authority, Ser 2003 A (AMBAC Insd) (a)			5.00				01/01/30								2,500				2,561,225
New Jersey Transportation Trust Fund Authority, Ser 2006 C (AGC Insd) (a)(b)			0.00				12/15/26								5,860				2,523,843
																			10,030,460
New Mexico (0.6%)
City of Albuquerque, Gross Receipts Lodgers’ Tax Ref Ser 2004 A (AGM Insd) (a)			5.00				07/01/37								1,500				1,537,455
New York (13.9%)
City of New York, Ser 2001 A-6 (AGM Insd) (a)(e)(f)			0.30				11/01/26								2,640				2,640,000
Metropolitan Transportation Authority, State Service Contract Refg Ser 2002 B (NATL-RE Insd) (a)			5.50				07/01/20								6,805				7,260,527
Metropolitan Transportation Authority, Transportation Ref Ser 2002 A (AMBAC Insd) (a)			5.50				11/15/17								10,000				10,812,600

See accompanying notes which are an integral part of this schedule.

Invesco Insured Municipal Trust

														Principal
		Interest				Maturity								Amount
		Rate				Date								(000)				Value
Metropolitan Transportation Authority, Transportation Ref Ser 2002 A (NATL-RE & FGIC Insd) (a)			5.00	%			11/15/25							$	2,000			$	2,050,720
New York City Industrial Development Agency, Queens Baseball Stadium Ser 2006 (AMBAC Insd) (a)			5.00				01/01/31								1,000				936,740
New York City Industrial Development Agency, Yankee Stadium Ser 2006 (FGIC Insd) (a)			5.00				03/01/46								1,515				1,458,672
New York State Dormitory Authority, Montefiore Hospital — FHA Insured Mortgage Ser 2004 (NATL-RE & FGIC Insd) (a)			5.00				08/01/29								2,000				2,043,200
New York State Dormitory Authority, New York University (AMBAC Insd) (a)			5.50				05/15/29								940				1,050,018
New York State Energy Research & Development Authority, Brooklyn Union Gas Co. Ser 1996 (NATL-RE Insd) (a)			5.50				01/01/21								5,000				5,018,350
New York State Thruway Authority, Personal Income Tax Transportation Ser 2009 A			5.00				03/15/25								1,725				1,924,289
																			35,195,116
Ohio (1.0%)
City of Cleveland, Public Power System Ser 2008 B-1 (NATL-RE Insd) (a)(b)			0.00				11/15/28								2,125				815,639
City of Cleveland, Public Power System Ser 2008 B-1 (NATL-RE Insd) (a)(b)			0.00				11/15/38								2,800				578,228
Ohio State Water Development Authority, Pollution Control Facilities Ser 2009 A			5.875				06/01/33								350				386,960
State of Ohio Higher Educational Facility Commission, Summa Health Systems Ser 2010			5.75				11/15/35								700				702,009
																			2,482,836
Oregon (0.7%)
Oregon State Department of Administrative Services, Ser 2005 B (COP) (NATL-RE & FGIC Insd) (a)			5.00				11/01/24								1,685				1,794,660
Pennsylvania (4.7%)
City of Philadelphia, Ser 2009 B (AGC Insd) (a)			7.125				07/15/38								720				817,603
Delaware County Industrial Development Authority, Ser 2005 A (AMT) (NATL-RE & FGIC Insd) (a)			5.00				11/01/37								1,500				1,506,420
Pennsylvania Economic Development Financing Authority, Ser A			3.70				11/01/21								1,400				1,413,328
Pennsylvania Turnpike Commission, Ser 2001 R (AMBAC Insd) (a)			5.00				12/01/26								3,000				3,061,560
Pennsylvania Turnpike Commission, Ser 2004 A (AMBAC Insd) (a)			5.00				12/01/34								4,000				4,039,280
Philadelphia School District, Ser 2008 E (BHAC Insd) (a)			5.125				09/01/23								1,000				1,106,650
																			11,944,841
Puerto Rico (1.1%)
Puerto Rico Sales Tax Financing Corp., Ser 2009 A (d)			5.00				08/01/11								1,160				1,215,448
Puerto Rico Sales Tax Financing Corp., Ser 2010 C			5.25				08/01/41								1,650				1,658,283
																			2,873,731
South Carolina (1.3%)
Medical University Hospital Authority, Mortgage Ser 2004 A (NATL-RE & FHA Insd) (a)			5.25				02/15/25								1,000				1,047,340
South Carolina State Public Service Authority, Santee Cooper Ser 2003 A (AMBAC Insd) (a)(c)			5.00				01/01/22								2,000				2,177,620
																			3,224,960
Tennessee (1.3%)
City of Clarksville Water Sewer & Gas, Ser 2004 (AGM Insd) (a)(e)(f)			0.40				02/01/25								3,325				3,325,000
Texas (10.0%)
Capital Area Cultural Education Facilities Finance Corp., Roman Catholic Diocese Ser 2005 B			6.125				04/01/45								700				707,301
City of Austin, Water & Wastewater Ref Ser 2001 (AGM Insd) (a)			5.125				05/15/27								1,840				1,883,258
City of Austin, Water & Wastewater Ref Ser 2001 A & B (AGM Insd) (a)(d)			5.125				05/15/11								3,160				3,283,177
City of Houston, Combined Utility First Lien Ref 2004 Ser A (NATL-RE & FGIC Insd) (a)			5.25				05/15/23								4,465				4,892,970

See accompanying notes which are an integral part of this schedule.

Invesco Insured Municipal Trust

														Principal
		Interest				Maturity								Amount
		Rate				Date								(000)				Value
City of Houston, Ser 2001 B (CR) (AGM & AMBAC Insd) (a)(b)			0.00	%			09/01/27							$	3,615			$	1,469,100
City of San Antonio, Water & Ref Ser 2002 A (AGM Insd) (a)			5.00				05/15/32								2,000				2,046,420
Friendswood Independent School District, Schoolhouse Ser 2008 (PSF-GTD)			5.00				02/15/27								800				874,768
Harris County Health Facilities Development Corp., Thermal Utility, Ser 2008 (AGC Insd) (a)			5.00				11/15/27								1,840				1,930,878
Houston Community College System, Senior Lien Student Fee Ser 2008 (AGM Insd) (a)			4.50				04/15/27								225				230,585
Houston Community College System, Senior Lien Student Fee Ser 2008 (AGM Insd) (a)			5.00				04/15/26								1,000				1,078,790
North Texas Tollway Authority, Ref Ser 2008 D (AGC Insd) (a)(b)			0.00				01/01/28								6,700				2,639,398
North Texas Tollway Authority, Ref Ser 2008 D (AGC Insd) (a)(b)			0.00				01/01/31								1,455				477,662
Texas State Turnpike Authority, First Tier Ser 2002 (CR) (BHAC & AMBAC Insd) (a)(b)			0.00				08/15/27								5,735				2,290,100
Victoria Independent School District, Ser 2008 (PSF-GTD)			5.00				02/15/24								410				458,601
Victoria Independent School District, Ser 2008 (PSF-GTD)			5.00				02/15/25								815				905,383
																			25,168,391
Washington (9.8%)
City of Seattle, Ser 2001 (AGM Insd) (a)(d)			5.125				03/01/11								3,730				3,836,976
City of Seattle, Ser 2001 (AGM Insd) (a)			5.125				03/01/26								1,270				1,291,412
County of King, Sewer Ref 2001 (NATL-RE & FGIC Insd) (a)			5.00				01/01/31								3,000				3,039,870
Cowlitz County Public Utility District No. 1, Production Ser 2006 (NATL-RE Insd) (a)			5.00				09/01/31								3,000				3,052,590
Port of Seattle, Passenger Facility Ser 1998 A (NATL-RE Insd) (a)			5.00				12/01/23								4,010				4,018,582
Port of Seattle, Ser 2000 B (AMT) (NATL-RE Insd) (a)			5.625				02/01/24								2,500				2,503,200
State of Washington, Various Purpose Ser 2010 A (c)			5.00				08/01/30								6,505				7,087,094
																			24,829,724
West Virginia (0.6%)
West Virginia Economic Development Authority, Solid Waste Disposable Facility Ser 2010 A			5.375				12/01/38								1,400				1,405,950
Wisconsin (0.8%)
State of Wisconsin, Ser 2009 A			5.625				05/01/28								1,900				2,106,739
Total Investments (Cost $361,597,806)											147.8	%							373,549,996
Other Assets Less Liabilities											1.2								3,284,264
Floating Rate Note and Dealer Trusts Obligations Related to Securities Held
Notes with interest rates ranging from 0.27% to 0.38% at 07/31/10 and contractual maturities of collateral ranging from 04/01/15 to 10/01/37 (See Note 1E) (i)											(23.3	)							(58,975,000	)
Preferred Shares of Beneficial Interest											(25.7	)							(65,052,277	)
Net Assets Applicable to Common Shareholders											100.0	%						$	252,806,983

Investment Abbreviations

See accompanying notes which are an integral part of this schedule.

Invesco Insured Municipal Trust

See accompanying notes which are an integral part of this schedule.

Invesco Insured Municipal Trust

Notes to Quarterly Schedule of Portfolio Holdings
July 31, 2010
(Unaudited)

NOTE 1 — Significant Accounting Policies

A.

Security Valuations – Securities, including restricted securities, are valued according to the following policy.

Securities are fair valued using an evaluated quote provided by an independent pricing service approved by the Board of Trustees. Evaluated quotes provided by the pricing service may be determined without exclusive reliance on quoted prices and may reflect appropriate factors such as institution-size trading in similar groups of securities, yield, quality, coupon rate, maturity, type of issue, individual trading characteristics and other market data. Short-term obligations, including commercial paper, having 60 days or less to maturity are recorded at amortized cost which approximates value. Securities with a demand feature exercisable within one to seven days are valued at par. Debt securities are subject to interest rate and credit risks. In addition, all debt securities involve some risk of default with respect to interest and principal payments.

Securities for which market quotations either are not readily available or are unreliable are valued at fair value as determined in good faith by or under the supervision of the Trust’s officers following procedures approved by the Board of Trustees. Some of the factors which may be considered in determining fair value are fundamental analytical data relating to the investment; the nature and duration of any restrictions on transferability or disposition; trading in similar securities by the same issuer or comparable companies; relevant political, economic or issuer specific news; and other relevant factors under the circumstances.

Valuations change in response to many factors including the historical and prospective earnings of the issuer, the value of the issuer’s assets, general economic conditions, interest rates, investor perceptions and market liquidity. Because of the inherent uncertainties of valuation, the values reflected in the financial statements may materially differ from the value received upon actual sale of those investments.

B.

Securities Transactions and Investment Income – Securities transactions are accounted for on a trade date basis. Realized gains or losses on sales are computed on the basis of specific identification of the securities sold. Interest income is recorded on the accrual basis from settlement date. Dividend income is recorded on the ex-dividend date. Bond premiums and discounts are amortized and/or accreted for financial reporting purposes.

The Fund may periodically participate in litigation related to Fund investments. As such, the Fund may receive proceeds from litigation settlements. Any proceeds received are included in the Statement of Operations as realized gain/loss for investments no longer held and as unrealized gain/loss for investments still held.

C.

Country Determination – For the purposes of making investment selection decisions and presentation in the Schedule of Investments, the investment adviser may determine the country in which an issuer is located and/or credit risk exposure based on various factors. These factors include the laws of the country under which the issuer is organized, where the issuer maintains a principal office, the country in which the issuer derives 50% or more of its total revenues and the country that has the primary market for the issuer’s securities, as well as other criteria. Among the other criteria that may be evaluated for making this determination are the country in which the issuer maintains 50% or more of its assets, the type of security, financial guarantees and enhancements, the nature of the collateral and the sponsor organization. Country of issuer and/or credit risk exposure has been determined to be the United States of America, unless otherwise noted.

D.

Other Risks – The Fund may invest up to 20% of its net assets in lower-quality debt securities, i.e., “junk bonds”. Investments in lower-rated securities or unrated securities of comparable quality tend to be more sensitive to economic conditions than higher rated securities. Junk bonds involve a greater risk of default by the issuer because such securities are generally unsecured and are often subordinated to other creditors’ claims.

The value of, payment of interest on, repayment of principal for and the ability of the Fund to sell a municipal security may be affected by constitutional amendments, legislative enactments, executive orders, administrative regulations, voter initiatives and the economics of the regions in which the issuers in which the Fund invests are located.

Many municipal securities are issued to finance similar projects, especially those relating to education, health care, transportation and utilities, conditions in those sectors can affect the overall municipal securities market and the Fund.

There is some risk that a portion or all of the interest received from certain tax-free municipal securities could become taxable as a result of determinations by the Internal Revenue Service.

E.

Floating Rate Obligations Related to Securities Held – The Fund enters into transactions in which it transfers to Special Purpose Trusts established by a Broker Dealer (“Dealer Trusts”) fixed rate bonds in exchange for cash and residual interests in the Dealer Trusts’ assets and cash flows, which are in the form of inverse floating rate investments.

Invesco Insured Municipal Trust

E.

Floating Rate Obligations Related to Securities Held – (continued)

The Dealer Trusts fund the purchases of the fixed rate bonds by issuing floating rate notes to third parties and allowing the Fund to retain residual interest in the bonds. The Fund may enter into shortfall agreements with the Dealer Trusts which commit the Fund to pay the Dealer Trusts, in certain circumstances, the difference between the liquidation value of the fixed rate bonds held by the Dealer Trusts and the liquidation value of the floating rate notes held by third parties, as well as any shortfalls in interest cash flows. The residual interests held by the Fund (inverse floating rate investments) include the right of the Fund (1) to cause the holders of the floating rate notes to tender their notes at par at the next interest rate reset date, and (2) to transfer the municipal bond from the Dealer Trusts to the Fund, thereby collapsing the Dealer Trusts. The Fund accounts for the transfer of bonds to the Dealer Trusts as secured borrowings, with the securities transferred remaining in the Fund’s investment assets, and the related floating rate notes reflected as Fund liabilities under the caption “Floating rate note and dealer trust obligations” on the Statement of Assets and Liabilities. The Fund records the interest income from the fixed rate bonds under the caption “Interest” and records the expenses related to floating rate obligations and any administrative expenses of the Dealer Trusts under the caption “Interest and residual trust expenses” on the Statement of Operations. The floating rate notes issued by the Dealer Trusts have interest rates that reset weekly and the floating rate note holders have the option to tender their notes to the Dealer Trusts for redemption at par at each reset date.

NOTE 2 — Additional Valuation Information

Generally Accepted Accounting Principles (“GAAP”) defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, under current market conditions. GAAP establishes a hierarchy that prioritizes the inputs to valuation methods giving the highest priority to readily available unadjusted quoted prices in an active market for identical assets (Level 1) and the lowest priority to significant unobservable inputs (Level 3) generally when market prices are not readily available or are unreliable. Based on the valuation inputs, the securities or other investments are tiered into one of three levels. Changes in valuation methods may result in transfers in or out of an investment’s assigned level:

	Level 1 –		Prices are determined using quoted prices in an active market for identical assets.
	Level 2 –		Prices are determined using other significant observable inputs. Observable inputs are inputs that other market participants may use in pricing a security. These may include quoted prices for similar securities, interest rates, prepayment speeds, credit risk, yield curves, loss severities, default rates, discount rates, volatilities and others.
	Level 3 –		Prices are determined using significant unobservable inputs. In situations where quoted prices or observable inputs are unavailable (for example, when there is little or no market activity for an investment at the end of the period), unobservable inputs may be used. Unobservable inputs reflect the Fund’s own assumptions about the factors market participants would use in determining fair value of the securities or instruments and would be based on the best available information.

          The following is a summary of the tiered valuation input levels, as of July 31, 2010. The level assigned to the securities valuations may not be an indication of the risk or liquidity associated with investing in those securities. Because of the inherent uncertainties of valuation, the values reflected in the financial statements may materially differ from the value received upon actual sale of those investments.

		Level 1				Level 2				Level 3				Total
Municipal Obligations		$	—			$	373,549,996			$	—			$	373,549,996

NOTE 3 — Investment Securities

Unrealized Appreciation (Depreciation) of Investment Securities on a Tax Basis

Aggregate unrealized appreciation of investment securities		$	14,391,079
Aggregate unrealized (depreciation) of investment securities			(2,438,889	)
Net unrealized appreciation of investment securities		$	11,952,190
Cost of investments for tax purposes is $361,597,806.

Invesco Insured Municipal Trust

Item 2. Controls and Procedures.

	(a)		As of September 16, 2010, an evaluation was performed under the supervision and with the participation of the officers of the Registrant, including the Principal Executive Officer (“PEO”) and Principal Financial Officer (“PFO”), to assess the effectiveness of the Registrant’s disclosure controls and procedures, as that term is defined in Rule 30a-3(c) under the Investment Company Act of 1940 (“Act”), as amended. Based on that evaluation, the Registrant’s officers, including the PEO and PFO, concluded that, as of , September 16, 2010, the Registrant’s disclosure controls and procedures were reasonably designed so as to ensure: (1) that information required to be disclosed by the Registrant on Form N-Q is recorded, processed, summarized and reported within the time periods specified by the rules and forms of the Securities and Exchange Commission; and (2) that material information relating to the Registrant is made known to the PEO and PFO as appropriate to allow timely decisions regarding required disclosure.
	(b)		There have been no changes in the Registrant’s internal control 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.

Certifications of PEO and PFO as required by Rule 30a-2(a) under the Investment Company Act of 1940.

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: Invesco Insured Municipal Trust

Date: September 29, 2010