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 811-21178
Name of Fund: BlackRock Insured Municipal Income Trust (BYM)
Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809
Name and address of agent for service: Anne F. Ackerley, Chief Executive Officer, BlackRock Insured Municipal Income Trust, 55 East 52nd Street, New York, NY 10055.
Registrant’s telephone number, including area code: (800) 882-0052, Option 4
Date of fiscal year end: 08/31/2010
Date of reporting period: 05/31/2010
Item 1 – Schedule of Investments
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Schedule of Investments May 31, 2010 (Unaudited) |
BlackRock Insured Municipal Income Trust (BYM) |
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(Percentages shown are based on Net Assets) |
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Municipal Bonds |
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Par |
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Value |
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Alabama 1.0% |
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Birmingham Special Care Facilities |
|
$ |
1,495 |
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$ |
1,630,208 |
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County of Jefferson Alabama, RB, |
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2,800 |
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2,216,116 |
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3,846,324 |
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|
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Arizona 0.6% |
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State of Arizona, COP, Department of |
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|
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5.00%, 10/01/27 |
|
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1,500 |
|
|
1,567,080 |
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5.25%, 10/01/28 |
|
|
650 |
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|
688,844 |
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|
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2,255,924 |
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California 28.8% |
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|
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Arcadia Unified School District |
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2,000 |
|
|
298,340 |
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California Health Facilities Financing |
|
|
625 |
|
|
651,919 |
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California Infrastructure & Economic |
|
|
10,100 |
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11,974,358 |
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Coast Community College District |
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|
|
|
|
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|
5.58%, 8/01/13 (c) |
|
|
7,450 |
|
|
6,173,591 |
|
5.40%, 8/01/36 (a) |
|
|
4,200 |
|
|
803,376 |
|
Fresno Unified School District California, |
|
|
1,100 |
|
|
1,127,511 |
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Golden State Tobacco Securitization |
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|
|
|
|
|
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6.63%, 6/01/13 |
|
|
6,500 |
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|
7,522,060 |
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6.75%, 6/01/13 |
|
|
14,500 |
|
|
16,833,340 |
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Los Angeles Municipal Improvement |
|
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4,000 |
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|
3,812,040 |
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Metropolitan Water District of Southern |
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17,500 |
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|
17,892,875 |
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Monterey Peninsula Community College |
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|
|
|
|
|
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5.15%, 8/01/31 |
|
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13,575 |
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|
3,617,330 |
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5.16%, 8/01/32 |
|
|
14,150 |
|
|
3,520,378 |
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Municipal Bonds |
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Par |
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Value |
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California (concluded) |
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Orange County Sanitation District, COP, |
|
$ |
2,500 |
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$ |
2,630,100 |
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Sacramento Unified School District |
|
|
2,700 |
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|
2,757,024 |
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San Francisco City & County Public |
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15,000 |
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15,132,750 |
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San Joaquin Hills Transportation |
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53,000 |
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10,077,950 |
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San Jose Unified School District Santa |
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2,350 |
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2,423,250 |
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107,248,192 |
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District of Columbia 2.6% |
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District of Columbia Tobacco Settlement |
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9,500 |
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9,499,620 |
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Florida 13.3% |
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Broward County School Board Florida, |
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2,000 |
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2,070,520 |
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City of Tallahassee Florida, RB (NPFGC), |
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3,000 |
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3,075,750 |
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County of Broward Florida, RB, Series A, |
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|
950 |
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|
994,327 |
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County of Duval Florida, COP, Master |
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2,800 |
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2,821,476 |
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County of Miami-Dade Florida, RB: |
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CAB, Sub-Series A (NPFGC), 5.25%, |
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25,520 |
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|
3,804,011 |
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Jackson
Health System (AGC), |
|
|
2,300 |
|
|
2,431,744 |
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Water
& Sewer System (AGM), |
|
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10,100 |
|
|
10,462,590 |
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County of Miami-Dade Florida, |
|
|
1,300 |
|
|
1,330,342 |
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Florida Housing Finance Corp., RB, |
|
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4,480 |
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4,624,391 |
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Portfolio Abbreviations |
To simplify the listings of portfolio holdings in the Schedule of Investments, the names and descriptions of many of the securities have been abbreviated according to the following list:
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AGC |
Assured Guaranty Corp. |
AGM |
Assured Guaranty Municipal Corp. |
AMBAC |
American Municipal Bond Assurance Corp. |
BHAC |
Berkshire Hathaway Assurance Corp. |
CAB |
Capital Appreciation Bonds |
COP |
Certificates of Participation |
ERB |
Education Revenue Bonds |
GNMA |
Government National Mortgage Association |
GO |
General Obligation Bonds |
IDA |
Industrial Development Authority |
ISD |
Independent School District |
NPFGC |
National Public Finance Guarantee Corp. |
PSF-GTD |
Permanent School Fund Guaranteed |
RB |
Revenue Bonds |
SBPA |
Stand-by Bond Purchase Agreement |
VRDN |
Variable Rate Demand Notes |
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BLACKROCK INSURED MUNICIPAL INCOME TRUST |
MAY 31, 2010 |
1 |
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Schedule of Investments (continued) |
BlackRock Insured Municipal Income Trust (BYM) |
|
(Percentages shown are based on Net Assets) |
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|
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Municipal Bonds |
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Par |
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Value |
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Florida (concluded) |
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Florida State Department of |
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$ |
7,500 |
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$ |
7,782,600 |
|
Miami-Dade County School Board, COP, |
|
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3,500 |
|
|
3,642,450 |
|
Orange County School Board, COP, |
|
|
5,590 |
|
|
5,975,654 |
|
Sarasota County Public Hospital District, |
|
|
300 |
|
|
311,994 |
|
|
|
|
|
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|
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|
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49,327,849 |
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Georgia 0.3% |
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Gwinnett County Hospital Authority, |
|
|
900 |
|
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918,666 |
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|
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Illinois 4.8% |
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Chicago Board of Education Illinois, GO, |
|
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2,500 |
|
|
2,813,225 |
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City of Chicago Illinois, GO, Refunding, |
|
|
1,000 |
|
|
1,054,240 |
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City of Chicago Illinois, RB, Series A |
|
|
7,310 |
|
|
7,495,308 |
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Illinois Municipal Electric Agency, RB, |
|
|
4,800 |
|
|
5,039,136 |
|
State of Illinois, RB, Build Illinois, |
|
|
1,400 |
|
|
1,465,632 |
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|
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|
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|
|
|
|
|
|
|
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17,867,541 |
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|
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Indiana 0.7% |
|
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Indiana Municipal Power Agency, RB: |
|
|
|
|
|
|
|
Indiana
Municipal Power Agency, |
|
|
450 |
|
|
478,948 |
|
Series A (NPFGC), 5.00%, 1/01/37 |
|
|
2,050 |
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|
2,072,837 |
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2,551,785 |
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|
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Iowa 1.4% |
|
|
|
|
|
|
|
Iowa Finance Authority, RB, Series A |
|
|
5,000 |
|
|
5,326,850 |
|
|
|
|
|
|
|
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Kentucky 0.4% |
|
|
|
|
|
|
|
Kentucky State Property & Buildings |
|
|
1,500 |
|
|
1,629,330 |
|
|
|
|
|
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Louisiana 2.1% |
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|
|
|
|
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|
State of Louisiana, RB, Series A (AGM), |
|
|
7,500 |
|
|
7,831,575 |
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Michigan 2.7% |
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City of Detroit Michigan, RB: |
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|
|
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Senior Lien, Series A (NPFGC), |
|
|
1,000 |
|
|
983,770 |
|
|
|
|
|
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|
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Municipal Bonds |
|
Par |
|
Value |
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||
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Michigan (concluded) |
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City of Detroit Michigan, RB (concluded): |
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|
|
|
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|
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Senior
Lien, Series A (NPFGC), |
|
$ |
2,660 |
|
$ |
2,601,560 |
|
System,
Second Lien, Series A |
|
|
2,900 |
|
|
3,011,012 |
|
System,
Second Lien, Series B |
|
|
400 |
|
|
395,384 |
|
City of Detroit Michigan, Refunding RB, |
|
|
3,000 |
|
|
3,214,020 |
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
10,205,746 |
|
|
|
|
|
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|
Nevada 7.7% |
|
|
|
|
|
|
|
City of Reno Nevada, Refunding RB, |
|
|
2,500 |
|
|
2,715,875 |
|
County of Clark Nevada, RB: |
|
|
|
|
|
|
|
Las
Vegas-McCarran International |
|
|
4,100 |
|
|
4,174,005 |
|
Subordinate
Lien, Series A2 (BHAC), |
|
|
2,500 |
|
|
2,558,325 |
|
System,
Subordinate Lien, Series C |
|
|
1,650 |
|
|
1,713,426 |
|
Truckee Meadows Water Authority, RB, |
|
|
|
|
|
|
|
5.00%, 7/01/11 |
|
|
10,000 |
|
|
10,499,400 |
|
5.13%, 7/01/11 |
|
|
6,500 |
|
|
6,833,450 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
28,494,481 |
|
|
|
|
|
|
|
|
|
New York 0.4% |
|
|
|
|
|
|
|
New York State Dormitory Authority, |
|
|
1,300 |
|
|
1,477,567 |
|
|
|
|
|
|
|
|
|
Ohio 0.3% |
|
|
|
|
|
|
|
Ohio Higher Educational Facility |
|
|
1,125 |
|
|
1,123,448 |
|
|
|
|
|
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|
Pennsylvania 1.5% |
|
|
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|
City of Philadelphia Pennsylvania, RB, |
|
|
5,200 |
|
|
5,482,828 |
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|
|
|
|
|
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|
Puerto Rico 1.6% |
|
|
|
|
|
|
|
Puerto Rico Sales Tax Financing Corp., |
|
|
5,300 |
|
|
5,950,840 |
|
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|
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|
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|
Rhode Island 0.8% |
|
|
|
|
|
|
|
Rhode Island Health & Educational |
|
|
2,625 |
|
|
2,918,895 |
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2 |
BLACKROCK INSURED MUNICIPAL INCOME TRUST |
MAY 31, 2010 |
|
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|
|
|
|
Schedule of Investments (continued) |
BlackRock Insured Municipal Income Trust (BYM) |
|
(Percentages shown are based on Net Assets) |
|
|
|
|
|
|
|
|
Municipal Bonds |
|
Par |
|
Value |
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||
|
|
|
|
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||
South Carolina 2.9% |
|
|
|
|
|
|
|
South Carolina Transportation |
|
$ |
10,000 |
|
$ |
10,614,800 |
|
|
|
|
|
|
|
|
|
Tennessee 5.7% |
|
|
|
|
|
|
|
Knox County Health Educational & |
|
|
|
|
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|
CAB, 5.84%, 1/01/22 |
|
|
11,705 |
|
|
6,192,296 |
|
CAB, 5.88%, 1/01/23 |
|
|
9,260 |
|
|
4,594,071 |
|
CAB, 5.90%, 1/01/24 |
|
|
8,500 |
|
|
3,959,980 |
|
CAB, 5.91%, 1/01/25 |
|
|
6,850 |
|
|
3,001,464 |
|
CAB, 5.93%, 1/01/26 |
|
|
5,000 |
|
|
2,057,000 |
|
Covenant,
Series A, 4.75%, |
|
|
7,250 |
|
|
1,325,663 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
21,130,474 |
|
|
|
|
|
|
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|
Texas 28.6% |
|
|
|
|
|
|
|
City of Houston Texas, RB, Senior Lien, |
|
|
4,165 |
|
|
4,488,579 |
|
City of San Antonio Texas, Refunding RB |
|
|
|
|
|
|
|
5.13%, 5/15/29 |
|
|
9,250 |
|
|
9,715,830 |
|
5.13%, 5/15/34 |
|
|
10,000 |
|
|
10,445,000 |
|
Coppell ISD Texas, GO, Refunding, CAB |
|
|
10,030 |
|
|
4,015,711 |
|
County of Harris Texas, GO (NPFGC) (a): |
|
|
|
|
|
|
|
5.56%, 8/15/25 |
|
|
7,485 |
|
|
4,048,786 |
|
5.59%, 8/15/28 |
|
|
10,915 |
|
|
5,011,186 |
|
County of Harris Texas, Refunding RB, |
|
|
5,510 |
|
|
5,665,602 |
|
Harris County-Houston Sports Authority, |
|
|
|
|
|
|
|
CAB,
Junior Lien, Series H, 5.92%, |
|
|
5,785 |
|
|
762,000 |
|
CAB,
Junior Lien, Series H, 5.93%, |
|
|
6,160 |
|
|
744,929 |
|
Third
Lien, Series A-3, 5.97%, |
|
|
26,890 |
|
|
3,541,951 |
|
Third
Lien, Series A-3, 5.98%, |
|
|
27,675 |
|
|
3,346,738 |
|
Lewisville ISD Texas, GO, Refunding, |
|
|
5,315 |
|
|
2,645,913 |
|
Mansfield ISD Texas, GO, School |
|
|
2,980 |
|
|
3,146,582 |
|
North Texas Tollway Authority, |
|
|
|
|
|
|
|
CAB,
System (AGC), 5.33%, |
|
|
5,000 |
|
|
1,771,400 |
|
CAB,
System (AGC), 5.45%, |
|
|
1,205 |
|
|
401,434 |
|
Series A, 6.00%, 1/01/28 |
|
|
625 |
|
|
683,706 |
|
System (NPFGC), 5.75%, 1/01/40 |
|
|
23,050 |
|
|
23,923,364 |
|
|
|
|
|
|
|
|
|
Municipal Bonds |
|
Par |
|
Value |
|
||
|
|
|
|
|
|
||
Texas (concluded) |
|
|
|
|
|
|
|
Texas State Turnpike Authority, RB, First |
|
$ |
23,145 |
|
$ |
22,110,419 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
106,469,130 |
|
|
|
|
|
|
|
|
|
Washington 6.5% |
|
|
|
|
|
|
|
Chelan County Public Utility District |
|
|
3,655 |
|
|
3,708,729 |
|
County of King Washington, Refunding |
|
|
2,200 |
|
|
2,275,746 |
|
Port of Seattle Washington, RB, Series A |
|
|
4,500 |
|
|
4,535,145 |
|
State of Washington, GO, Various |
|
|
6,045 |
|
|
6,264,796 |
|
Washington Health Care Facilities |
|
|
6,600 |
|
|
6,788,166 |
|
Washington Health Care Facilities |
|
|
700 |
|
|
725,193 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
24,297,775 |
|
|
|
|
|
|
|
|
|
Wisconsin 0.4% |
|
|
|
|
|
|
|
Wisconsin Health & Educational |
|
|
1,500 |
|
|
1,530,585 |
|
|
|
|
|
|
|
|
|
Total Municipal Bonds 115.1% |
|
|
|
|
|
428,000,225 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||||||
Municipal Bonds Transferred to
Tender |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Arizona 0.4% |
|
|
|
|
|
|
|
Phoenix Civic Improvement Corp., RB, |
|
|
1,300 |
|
|
1,364,831 |
|
|
|
|
|
|
|
|
|
California 10.7% |
|
|
|
|
|
|
|
California State University, Refunding |
|
|
8,000 |
|
|
8,116,560 |
|
California State University, RB, |
|
|
3,379 |
|
|
3,420,291 |
|
Foothill-De Anza Community College |
|
|
7,500 |
|
|
7,657,050 |
|
Los Angeles Community College District |
|
|
5,000 |
|
|
5,145,350 |
|
|
|
|
|
|
|
BLACKROCK INSURED MUNICIPAL INCOME TRUST |
MAY 31, 2010 |
3 |
|
|
|
|
|
|
Schedule of Investments (continued) |
BlackRock Insured Municipal Income Trust (BYM) |
|
(Percentages shown are based on Net Assets) |
|
|
|
|
|
|
|
|
Municipal Bonds Transferred to
Tender |
|
Par |
|
Value |
|
||
|
|
|
|
|
|
||
California (concluded) |
|
|
|
|
|
|
|
San Diego Community College District |
|
$ |
449 |
|
$ |
477,271 |
|
San Diego County Water Authority, COP, |
|
|
4,870 |
|
|
5,047,073 |
|
University of California, RB, Series C |
|
|
10,000 |
|
|
9,820,700 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
39,684,295 |
|
|
|
|
|
|
|
|
|
District of Columbia 0.3% |
|
|
|
|
|
|
|
District of Columbia, RB, Series A, |
|
|
1,080 |
|
|
1,218,013 |
|
|
|
|
|
|
|
|
|
Florida 2.2% |
|
|
|
|
|
|
|
City of Tallahassee Florida, RB (NPFGC), |
|
|
5,000 |
|
|
5,088,800 |
|
Florida State Board of Education, GO, |
|
|
2,999 |
|
|
3,135,525 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8,224,325 |
|
|
|
|
|
|
|
|
|
Hawaii 2.7% |
|
|
|
|
|
|
|
Honolulu City & County Board of Water |
|
|
10,000 |
|
|
10,248,400 |
|
|
|
|
|
|
|
|
|
Illinois 7.9% |
|
|
|
|
|
|
|
Illinois State Toll Highway Authority, RB, |
|
|
4,499 |
|
|
4,903,409 |
|
Metropolitan Pier & Exposition Authority, |
|
|
24,010 |
|
|
24,347,821 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
29,251,230 |
|
|
|
|
|
|
|
|
|
Massachusetts 3.7% |
|
|
|
|
|
|
|
Massachusetts School Building |
|
|
12,987 |
|
|
13,636,101 |
|
|
|
|
|
|
|
|
|
Nevada 1.8% |
|
|
|
|
|
|
|
City of Las Vegas Nevada, GO, Limited |
|
|
4,198 |
|
|
4,629,979 |
|
Clark County Water Reclamation |
|
|
2,024 |
|
|
2,256,131 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
6,886,110 |
|
|
|
|
|
|
|
|
|
New York 4.6% |
|
|
|
|
|
|
|
Erie County Industrial Development |
|
|
4,494 |
|
|
4,952,166 |
|
Metropolitan Transportation Authority, |
|
|
7,002 |
|
|
7,275,793 |
|
|
|
|
|
|
|
|
|
Municipal Bonds Transferred to
Tender |
|
Par |
|
Value |
|
||
|
|
|
|
|
|
||
New York (concluded) |
|
|
|
|
|
|
|
Triborough Bridge & Tunnel Authority, |
|
$ |
4,500 |
|
$ |
4,856,850 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
17,084,809 |
|
|
|
|
|
|
|
|
|
Ohio 0.2% |
|
|
|
|
|
|
|
State of Ohio, RB, Cleveland Clinic |
|
|
620 |
|
|
654,255 |
|
|
|
|
|
|
|
|
|
South Carolina 0.2% |
|
|
|
|
|
|
|
South Carolina State Public Service |
|
|
600 |
|
|
654,840 |
|
|
|
|
|
|
|
|
|
Texas 2.7% |
|
|
|
|
|
|
|
Northside ISD Texas, GO, School |
|
|
9,500 |
|
|
10,178,823 |
|
|
|
|
|
|
|
|
|
Utah 1.4% |
|
|
|
|
|
|
|
Utah Transit Authority, RB, Series A |
|
|
5,000 |
|
|
5,270,650 |
|
|
|
|
|
|
|
|
|
Virginia 0.1% |
|
|
|
|
|
|
|
Fairfax County IDA Virginia, Refunding |
|
|
400 |
|
|
423,800 |
|
|
|
|
|
|
|
|
|
Washington 1.0% |
|
|
|
|
|
|
|
Central Puget Sound Regional Transit |
|
|
3,494 |
|
|
3,693,791 |
|
|
|
|
|
|
|
|
|
Total
Municipal Bonds Transferred to |
|
|
|
|
|
148,474,273 |
|
|
|
|
|
|
|
|
|
Total
Long-Term Investments |
|
|
|
|
|
576,474,498 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||||||
Short-Term Securities |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
New York 0.5% |
|
|
|
|
|
|
|
City of New York New York, GO, VRDN, |
|
|
1,700 |
|
|
1,700,000 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
Money Market Fund 2.1% |
|
|
|
|
|
|
|
FFI Institutional Tax-Exempt Fund, |
|
|
7,742,325 |
|
|
7,742,325 |
|
|
|
|
|
|
|
|
|
Total
Short-Term Securities |
|
|
|
|
|
9,442,325 |
|
|
|
|
|
|
|
4 |
BLACKROCK INSURED MUNICIPAL INCOME TRUST |
MAY 31, 2010 |
|
|
|
|
|
|
Schedule of Investments (concluded) |
BlackRock Insured Municipal Income Trust (BYM) |
|
(Percentages shown are based on Net Assets) |
|
|
|
|
|
|
|
|
|
|
|
|
|
Value |
|
|
|
|
|
|
|
|
|
|
Total
Investments |
|
|
|
|
$ |
585,916,823 |
|
Other Assets Less Liabilities 0.3% |
|
|
|
|
|
1,188,138 |
|
Liabilities
for Trust Certificates, Including |
|
|
|
|
|
(77,966,026 |
) |
Preferred Shares, at Redemptions Value (36.9)% |
|
|
|
|
|
(137,264,738 |
) |
|
|
|
|
|
|
|
|
Net Assets Applicable to Common Shares 100.0% |
|
|
|
|
$ |
371,874,197 |
|
|
|
|
|
|
|
|
|
|
|
* |
The cost and unrealized appreciation (depreciation) of investments as of May 31, 2010, as computed for federal income tax purposes, were as follows: |
|
|
|
|
|
Aggregate cost |
|
$ |
503,352,135 |
|
|
|
|
|
|
Gross unrealized appreciation |
|
$ |
24,752,625 |
|
Gross unrealized depreciation |
|
|
(20,102,448 |
) |
|
|
|
|
|
Net unrealized appreciation |
|
$ |
4,650,177 |
|
|
|
|
|
|
|
|
(a) |
Represents a zero-coupon bond. Rate shown reflects the current yield as of report date. |
|
|
(b) |
US government securities, held in escrow, are used to pay interest on this security as well as to retire the bond in full at the date indicated, typically at a premium to par. |
|
|
(c) |
Represents a step-up bond that pays an initial coupon rate for the first period and then a higher coupon rate for the following periods. Rate shown reflects the current yield. |
|
|
(d) |
Securities represent bonds transferred to a tender option bond trust in exchange for which the Trust acquired residual interest certificates. These securities serve as collateral in a financing transaction. |
|
|
(e) |
Variable rate security. Rate shown is as of report date and maturity shown is the date the principal owed can be recovered through demand. |
|
|
(f) |
Investments in companies considered to be an affiliate of the Trust during the period, for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||
Affiliate |
|
Shares
Held at |
|
Net Activity |
|
Shares
Held |
|
Income |
|
||||
|
|
|
|
|
|
|
|
|
|
||||
FFI Institutional |
|
|
4,401,744 |
|
|
3,340,581 |
|
|
7,742,325 |
|
$ |
5,671 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(g) |
Represents the current yield as of report date. |
|
|
|
|
|
Fair Value Measurements - Various inputs are used in determining the fair value of investments, which are as follows: |
|
|
|
|
|
|
Level 1 price quotations in active markets/exchanges for identical assets and liabilities |
|
|
|
|
|
Level 2 other observable inputs (including, but not limited to: quoted prices for similar assets or liabilities in markets that are active, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates) or other market-corroborated inputs) |
|
|
|
|
|
Level 3 unobservable inputs based on the best information available in the circumstances, to the extent observable inputs are not available (including the Trusts own assumptions used in determining the fair value of investments) |
|
|
|
The inputs or methodologies used for valuing securities are not necessarily an indication of the risk associated with investing in those securities. For information about the Trusts policy regarding valuation of investments and other significant accounting policies, please refer to the Trusts most recent financial statements as contained in its semi-annual report. |
||
|
|
|
The following table summarizes the inputs used as of May 31, 2010 in determining the fair valuation of the Trusts investments: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Investments in Securities |
|
||||||||||||
|
|
||||||||||||
Valuation Inputs |
|
Level 1 |
|
Level 2 |
|
Level 3 |
|
Total |
|
||||
|
|
|
|
|
|
|
|
|
|
||||
Assets: |
|
|
|
|
|
|
|
|
|
|
|
|
|
Long Term |
|
|
|
|
$ |
576,474,498 |
|
|
|
|
$ |
576,474,498 |
|
Short-Term |
|
$ |
7,742,325 |
|
|
1,700,000 |
|
|
|
|
|
9,442,325 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Total |
|
$ |
7,742,325 |
|
$ |
578,174,498 |
|
|
|
|
$ |
585,916,823 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
See above Schedule of Investments for values in each state or political subdivision. |
|
|
|
|
|
|
BLACKROCK INSURED MUNICIPAL INCOME TRUST |
MAY 31, 2010 |
5 |
Item 2 – |
Controls and Procedures |
||
|
|
||
2(a) – |
The registrant's principal executive and principal financial officers or persons performing similar functions have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the “1940 Act”)) are effective as of a date within 90 days of the filing of this report based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act and Rule 13(a)-15(b) under the Securities Exchange Act of 1934, as amended. |
||
|
|
||
2(b) – |
There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 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 – Attached hereto |
||
|
|
||
|
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. |
||
|
|
||
|
BlackRock Insured Municipal Income Trust |
||
By: |
/s/ Anne F. Ackerley | ||
Anne F. Ackerley | |||
Chief Executive Officer of | |||
BlackRock Insured Municipal Income Trust | |||
Date: July 23, 2010 | |||
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: |
/s/ Anne F. Ackerley | ||
Anne F. Ackerley | |||
Chief Executive Officer (principal executive officer) of | |||
BlackRock Insured Municipal Income Trust | |||
Date: July 23, 2010 | |||
By: |
/s/ Neal J. Andrews | ||
Neal J. Andrews | |||
Chief Financial Officer (principal financial officer) of | |||
BlackRock Insured Municipal Income Trust | |||
Date: July 23, 2010 |