BlackRock Municipal Income Investment Trust

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 numbers 811-10333

Name of Fund: BlackRock Municipal Income Investment Trust (BBF)

Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809

Name and address of agent for service: John M. Perlowski, Chief Executive Officer, BlackRock Municipal Income Investment 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: 07/31/2018

Date of reporting period: 04/30/2018


Item 1 – Schedule of Investments

 


Schedule of Investments  (unaudited)

April 30, 2018

  

BlackRock Municipal Income Investment Trust (BBF)

(Percentages shown are based on Net Assets)

 

Security  

Par

(000)

    Value  

Municipal Bonds — 108.4%

   
Alabama — 0.3%            

City of Selma Alabama IDB, RB, Gulf Opportunity Zone, International Paper Co. Project, Series A, 5.38%, 12/01/35

  $ 420     $ 464,289  
   

 

 

 
Arizona — 1.1%            

Arizona IDA, Refunding RB, Basis Schools, Inc. Projects, Series A, 5.38%, 07/01/50(a)

    1,185       1,228,869  

City of Phoenix Arizona IDA, Refunding RB, Basis Schools, Inc. Projects, Series A,
5.00%, 07/01/35(a)

    275       281,968  
   

 

 

 
      1,510,837  
California — 14.7%            

California Health Facilities Financing Authority, Refunding RB, Catholic Healthcare West, Series A, 6.00%, 07/01/19(b)

    1,010       1,058,611  

California School Finance Authority, RB, Alliance For College-Ready Public School Projects, Series A, 5.00%, 07/01/51(a)

    1,200       1,276,344  

California Statewide Communities Development Authority, RB, Lancer Educational student Housing Project, Series A, 5.00%, 06/01/46(a)

    1,220       1,276,889  

California Statewide Communities Development Authority, Refunding RB, Lancer Educational student Housing Project, Series A, 5.00%, 06/01/36(a)

    990       1,041,678  

Golden State Tobacco Securitization Corp., Refunding RB, Asset-Backed, Senior Series A-1:

   

5.13%, 06/01/47

    425       424,987  

5.75%, 06/01/47

    330       339,478  

Kern Community College District, GO, Safety, Repair & Improvement, Series C, 5.50%, 11/01/33

    1,185       1,376,448  

Regents of the University of California Medical Center Pooled Revenue, Refunding RB, Series J:

   

5.25%, 05/15/23(b)

    2,165       2,487,044  

5.25%, 05/15/38

    615       694,249  

San Diego Regional Building Authority, RB, County Operations Center & Annex, Series A,
5.38%, 02/01/19(b)

    1,250       1,284,587  

State of California, GO, Various Purposes,
6.00%, 03/01/33

    1,960       2,109,744  
Security  

Par

(000)

    Value  
California (continued)            

State of California Public Works Board, LRB, Various Capital Projects, Series I:

   

5.50%, 11/01/31

  $ 2,100     $ 2,413,572  

5.50%, 11/01/33

    1,500       1,716,525  

State of California Public Works Board, RB, Department of Corrections & Rehabilitation, Series F, 5.25%, 09/01/33

    610       688,013  

Tobacco Securitization Authority of Southern California, Refunding RB, Tobacco Settlement, Asset-Backed, Senior Series A-1, 5.00%, 06/01/37

    2,025       2,030,832  

Township of Washington California Health Care District, GO, Election of 2004, Series B,
5.50%, 08/01/40

    460       530,141  
   

 

 

 
      20,749,142  
Colorado — 3.0%            

Centerra Metropolitan District No. 1, Tax Allocation Bonds, 5.00%, 12/01/47(a)

    250       253,133  

City & County of Denver Colorado Airport System, ARB, Sub-System, Series B, 5.25%, 11/15/32

    1,750       1,956,080  

Colorado Health Facilities Authority, Refunding RB, Series A:

   

Catholic Health Initiative, 5.50%, 07/01/34

    1,675       1,728,700  

Frasier Meadows Retirement Community Project, 5.25%, 05/15/37

    210       228,411  
   

 

 

 
      4,166,324  
Connecticut — 0.4%            

Connecticut Housing Finance Authority, Refunding RB, S/F Housing, Sub-Series B-1, 4.00%, 05/15/45

    515       516,936  
   

 

 

 
Florida — 6.4%            

Celebration Pointe Community Development District, Special Assessment Bonds, County of Alachua Florida(a):

   

5.00%, 05/01/32

    225       232,742  

5.00%, 05/01/48

    555       566,694  

City of Jacksonville Florida, Refunding RB, Series A, 5.25%, 10/01/33

    370       415,632  

County of Miami-Dade Florida, RB, Seaport Department, Series A, 6.00%, 10/01/38

    5,675       6,495,378  
 

 

 

     1  


Schedule of Investments  (unaudited) (continued)

April 30, 2018

  

BlackRock Municipal Income Investment Trust (BBF)

(Percentages shown are based on Net Assets)

 

Security  

Par

(000)

    Value  
Florida (continued)            

Lakewood Ranch Stewardship District, Special Assessment Bonds, Lakewood National & Polo Run Projects:

   

5.25%, 05/01/37

  $ 180     $ 189,761  

5.38%, 05/01/47

    185       194,631  

Reedy Creek Florida Improvement District, GO, Series A, 5.25%, 06/01/32

    875       987,779  
   

 

 

 
      9,082,617  
Illinois — 19.8%            

Chicago Board of Education, GO, Series H, 5.00%, 12/01/46

    215       210,823  

Chicago Board of Education, GO, Refunding, Dedicated Revenues:

   

Series D, 5.00%, 12/01/27

    400       413,208  

Series F, 5.00%, 12/01/23

    290       307,043  

Series G, 5.00%, 12/01/34

    215       215,477  

City of Chicago Illinois O’Hare International Airport, GARB, 3rd Lien, Series C, 6.50%, 01/01/21(b)

    4,545       5,051,540  

City of Chicago Illinois Transit Authority, RB:

   

5.25%, 12/01/31

    560       600,886  

Sales Tax Receipts, 5.25%, 12/01/36

    1,500       1,605,300  

Sales Tax Receipts, 5.25%, 12/01/40

    1,750       1,866,130  

County of Cook Illinois Community College District No. 508, GO, City College of Chicago:

   

5.50%, 12/01/38

    580       609,197  

5.25%, 12/01/43

    2,660       2,756,053  

Illinois Finance Authority, RB:

   

Carle Foundation, Series A, 6.00%, 08/15/41

    1,750       1,933,838  

Chicago LLC, University of Illinois at Chicago Project, Series A, 5.00%, 02/15/47

    130       137,407  

Chicago LLC, University of Illinois at Chicago Project, Series A, 5.00%, 02/15/50

    65       68,449  

Rush University Medical Center, Series B,
7.25%, 11/01/18(b)

    1,600       1,642,400  

Illinois Finance Authority, Refunding RB, Northwestern Memorial Hospital, Series A,
6.00%, 08/15/19(b)

    2,900       3,052,917  
Security  

Par

(000)

    Value  
Illinois (continued)            

Metropolitan Pier & Exposition Authority, RB, Series A, McCormick Place Expansion Project:

   

Bonds, 0.00%, 12/15/56(d)

  $ 2,165     $ 276,557  

Bonds, 5.00%, 06/15/57

    590       617,494  

5.50%, 06/15/53

    280       296,951  

Metropolitan Pier & Exposition Authority, Refunding RB, McCormick Place Expansion Project:

   

Bonds, Series B, 0.00%, 12/15/54(d)

    3,020       432,223  

Series B-2, 5.00%, 06/15/50

    125       126,673  

Railsplitter Tobacco Settlement Authority, RB(b):

   

5.50%, 06/01/21

    1,055       1,160,447  

6.00%, 06/01/21

    300       334,434  

State of Illinois, GO:

   

5.25%, 02/01/31

    730       749,958  

5.25%, 02/01/32

    1,500       1,537,980  

5.50%, 07/01/33

    1,500       1,551,570  

5.50%, 07/01/38

    340       349,965  
   

 

 

 
      27,904,920  
Indiana — 3.7%            

County of Allen Indiana, RB, StoryPoint Fort Wayne Project, Series A-1(a):

   

6.63%, 01/15/34

    125       133,009  

6.75%, 01/15/43

    185       196,597  

6.88%, 01/15/52

    375       399,304  

Indiana Finance Authority, Refunding RB, Marquette Project, 4.75%, 03/01/32

    500       511,385  

Indiana Municipal Power Agency, RB, Series B, 6.00%, 01/01/19(b)

    3,400       3,492,786  

Town of Chesterton Indiana, RB, StoryPoint Chesterton Project, Series A-1,
6.38%, 01/15/51(a)

    520       536,208  
   

 

 

 
      5,269,289  
Iowa — 1.2%            

Iowa Finance Authority, Refunding RB, Iowa Fertilizer Co. Project:

   

Series B, 5.25%, 12/01/50(e)

    905       950,530  

Midwestern Disaster Area, 5.50%, 12/01/22

    5       5,073  
 

 

 

2   


Schedule of Investments  (unaudited) (continued)

April 30, 2018

  

BlackRock Municipal Income Investment Trust (BBF)

(Percentages shown are based on Net Assets)

 

Security  

Par

(000)

    Value  
Iowa (continued)            

Iowa Finance Authority, Refunding RB, Iowa Fertilizer Co. Project (continued):

   

Midwestern Disaster Area, 5.25%, 12/01/25

  $ 625     $ 664,994  
   

 

 

 
      1,620,597  
Kansas — 2.2%            

City of Lenexa Kansas, Refunding RB, Lakeview Village, Inc., Series A, 5.00%, 05/15/43

    475       500,398  

Kansas Development Finance Authority, Refunding RB, Adventist Health System:

   

5.50%, 11/15/19(b)

    55       57,804  

5.50%, 11/15/29

    2,445       2,586,810  
   

 

 

 
      3,145,012  
Louisiana — 1.5%            

Louisiana Local Government Environmental Facilities & Community Development Authority, RB, Westlake Chemical Corp. Project, Series A-1, 6.50%, 11/01/35

    1,095       1,205,431  

Tobacco Settlement Financing Corp., Refunding RB, Asset-Backed, Series A, 5.50%, 05/15/29

    915       948,342  
   

 

 

 
      2,153,773  
Maine — 0.5%            

Maine Health & Higher Educational Facilities Authority, RB, Maine General Medical Center, 7.50%, 07/01/32

    680       758,588  
   

 

 

 
Maryland — 0.4%            

City of Baltimore Maryland, Refunding RB, East Baltimore Research Park, Series A, 4.50%, 09/01/33

    135       139,568  

City of Baltimore Maryland, Tax Allocation Bonds, Center/West Development, Series A, 5.38%, 06/01/36

    415       420,545  
   

 

 

 
      560,113  
Massachusetts — 2.4%            

Massachusetts Development Finance Agency, RB:

   

Emerson College Issue, Series A, 5.00%, 01/01/47

    790       851,525  

UMass Boston Student Housing Project, 5.00%, 10/01/41

    500       539,855  

UMass Boston Student Housing Project, 5.00%, 10/01/48

    875       943,442  
Security  

Par

(000)

    Value  
Massachusetts (continued)            

Massachusetts Development Finance Agency, Refunding RB:

   

Emerson College Issue, 5.00%, 01/01/45

  $ 375     $ 398,078  

Trustees of Deerfield Academy, 5.00%, 10/01/40

    375       399,364  

Metropolitan Boston Transit Parking Corp., Refunding RB, 5.25%, 07/01/36

    300       325,032  
   

 

 

 
      3,457,296  
Michigan — 3.3%            

City of Lansing Michigan, RB, Board of Water & Light Utilities System, Series A, 5.50%, 07/01/41

    1,400       1,532,314  

Michigan State Building Authority, Refunding RB, Facilities Program Series:

   

6.00%, 10/15/18(b)

    910       926,890  

6.00%, 10/15/18(b)

    540       550,022  

6.00%, 10/15/38

    50       50,924  

Royal Oak Hospital Finance Authority Michigan, Refunding RB, William Beaumont Hospital, Series V, 8.25%, 09/01/18(b)

    1,525       1,557,299  
   

 

 

 
      4,617,449  
Missouri — 0.3%            

Health & Educational Facilities Authority of the State of Missouri, RB, SSM Health, Series A, 4.00%, 06/01/48

    470       469,981  
   

 

 

 
Montana — 0.1%            

City of Kalispell Montana, Refunding RB, Immanuel Lutheran Corporation Project, Series A, 5.25%, 05/15/37

    125       130,761  
   

 

 

 
Nevada — 5.2%            

City of Las Vegas Nevada, GO, Limited Tax, Performing Arts Center, 6.00%, 04/01/19(b)

    2,600       2,697,526  

County of Clark Nevada, GOL, Stadium Improvement, Series A, 5.00%, 06/01/43

    1,385       1,579,094  

County of Clark Nevada Airport System, ARB, Series B, 5.75%, 07/01/42

    2,825       2,997,918  
   

 

 

 
      7,274,538  
New Jersey — 7.3%            

Casino Reinvestment Development Authority, Refunding RB, 5.25%, 11/01/39

    265       280,775  
 

 

 

     3  


Schedule of Investments  (unaudited) (continued)

April 30, 2018

  

BlackRock Municipal Income Investment Trust (BBF)

(Percentages shown are based on Net Assets)

 

Security  

Par

(000)

    Value  
New Jersey (continued)            

New Jersey EDA, Refunding RB, School Facilities Construction, Series AA:

   

5.50%, 06/15/19(b)

  $ 500     $ 520,060  

5.50%, 12/15/29

    250       258,138  

New Jersey Housing & Mortgage Finance Agency, RB, S/F, Series CC, 5.25%, 10/01/29

    1,545       1,571,018  

New Jersey Transportation Trust Fund Authority, RB, Transportation System:

   

Series A, 5.88%, 12/15/38

    1,990       2,030,337  

Series AA, 5.50%, 06/15/39

    2,245       2,398,311  

Tobacco Settlement Financing Corp., Refunding RB:

   

Series A, 5.00%, 06/01/46

    1,515       1,635,700  

Series A, 5.25%, 06/01/46

    580       644,165  

Sub-Series B, 5.00%, 06/01/46

    380       398,704  

Tobacco Settlement Financing Corp. New Jersey, Refunding RB, Series A, 5.00%, 06/01/36

    475       523,607  
   

 

 

 
      10,260,815  
New York — 3.6%            

Counties of New York Tobacco Trust IV, Refunding RB, Settlement Pass-Through Turbo, Series A, 6.25%, 06/01/41(a)

    900       937,260  

Hudson Yards Infrastructure Corp., RB, Senior, Fiscal 2012:

   

5.75%, 02/15/21(b)

    1,005       1,106,314  

5.75%, 02/15/47

    615       664,987  

Metropolitan Transportation Authority, RB, Series A, 5.25%, 11/15/21(b)

    500       554,845  

New York Liberty Development Corp., Refunding RB, 2nd Priority, Bank of America Tower at One Bryant Park Project, Class 3, 6.38%, 07/15/49

    1,480       1,565,529  

Westchester New York Tobacco Asset Securitization, Refunding RB, Tobacco Settlement Bonds, Sub-Series C, 4.00%, 06/01/42

    280       270,735  
   

 

 

 
      5,099,670  
Ohio — 3.8%            

Buckeye Tobacco Settlement Financing Authority, RB, Asset-Backed, Senior Turbo Term, Series A-2:

   

5.75%, 06/01/34

    225       222,986  

5.88%, 06/01/47

    1,000       999,990  

County of Allen Ohio Hospital Facilities Revenue, Refunding RB, Catholic Healthcare Partners, Series A, 5.25%, 06/01/20(b)

    2,405       2,561,951  
Security  

Par

(000)

    Value  
Ohio (continued)            

State of Ohio Turnpike Commission, RB, Junior Lien, Infrastructure Projects, Series A-1, 5.25%, 02/15/31

  $ 1,385     $ 1,536,602  
   

 

 

 
      5,321,529  
Oklahoma — 1.9%            

Oklahoma Development Finance Authority, RB:

   

OU Medicine Project, Series B, 5.25%, 08/15/48

    560       613,077  

Provident Oklahoma Education Resources, Inc., Cross Village Student Housing Project, Series A, 5.25%, 08/01/57

    1,110       1,183,571  

Tulsa County Industrial Authority, Refunding RB, Montereau, Inc. Project, 5.25%, 11/15/45

    850       931,727  
   

 

 

 
      2,728,375  
Oregon — 0.2%            

County of Clackamas Oregon School District No. 12 North Clackamas, GO, CAB, Series A,
0.00%, 06/15/38(d)

    575       248,291  
   

 

 

 
Pennsylvania — 4.8%            

Allentown Neighborhood Improvement Zone Development Authority, RB, City Center Project, 5.00%, 05/01/42(a)

    420       444,637  

Commonwealth Financing Authority, RB, Tobacco Master Settlement Payment, 5.00%, 06/01/32

    435       488,440  

County of Montgomery Higher Education & Health Authority, Refunding RB, Thomas Jefferson University, Series A, 4.00%, 09/01/49

    585       575,722  

Pennsylvania Economic Development Financing Authority, RB, American Water Co. Project, 6.20%, 04/01/39

    800       828,928  

Pennsylvania Housing Finance Agency, RB, S/F Housing Mortgage, Series 123-B, 4.00%, 10/01/42

    1,000       1,008,520  

Pennsylvania Turnpike Commission, RB, Series A(b):

   

5.63%, 12/01/20

    1,200       1,306,320  

5.63%, 12/01/20

    445       484,427  
 

 

 

4   


Schedule of Investments  (unaudited) (continued)

April 30, 2018

  

BlackRock Municipal Income Investment Trust (BBF)

(Percentages shown are based on Net Assets)

 

Security  

Par

(000)

    Value  
Pennsylvania (continued)            

Township of Bristol Pennsylvania School District, GO, 5.25%, 06/01/37

  $ 1,530     $ 1,682,740  
   

 

 

 
      6,819,734  
Puerto Rico — 1.2%            

Children’s Trust Fund, Refunding RB, Tobacco Settlement Asset-Backed Bonds:

   

5.50%, 05/15/39

    305       297,570  

5.63%, 05/15/43

    1,420       1,357,960  
   

 

 

 
      1,655,530  
Rhode Island — 2.1%            

Tobacco Settlement Financing Corp., Refunding RB, Series B:

   

4.50%, 06/01/45

    2,870       2,899,389  

5.00%, 06/01/50

    125       128,064  
   

 

 

 
      3,027,453  
South Carolina — 1.7%            

County of Charleston South Carolina, RB, Special Source, 5.25%, 12/01/38

    1,825       2,076,704  

State of South Carolina Public Service Authority, Refunding RB, Series E, 5.25%, 12/01/55

    325       353,545  
   

 

 

 
      2,430,249  
Texas — 11.3%            

Central Texas Regional Mobility Authority, Refunding RB, Senior Lien, 6.00%, 01/01/21(b)

    2,560       2,808,883  

City of Beaumont Texas, GO, Certificates of Obligation, 5.25%, 03/01/37

    1,140       1,265,867  

County of Tarrant Texas Cultural Education Facilities Finance Corp., RB, Scott & White Healthcare, 6.00%, 08/15/20(b)

    2,710       2,951,596  

Lower Colorado River Authority, Refunding RB:

   

5.50%, 05/15/19(b)

    5       5,179  

5.50%, 05/15/19(b)

    80       82,857  

5.50%, 05/15/19(b)

    5       5,179  

5.50%, 05/15/33

    1,910       1,977,996  

North Texas Tollway Authority, RB, Special Projects, Series A, 5.50%, 09/01/21(b)

    1,500       1,660,125  

North Texas Tollway Authority, Refunding RB, 1st Tier, Series K-1 (AGC), 5.75%, 01/01/19(b)

    1,250       1,282,488  

Red River Texas Education Financing Corp., RB, Texas Christian University Project, 5.25%, 03/15/38

    520       577,600  
Security  

Par

(000)

    Value  
Texas (continued)            

San Antonio Water System, Refunding RB, Junior Lien, Series A, 5.00%, 05/15/48(c)

  $ 1,095     $ 1,244,906  

Texas Private Activity Bond Surface Transportation Corp., RB, Senior Lien, NTE Mobility Partners LLC, North Tarrant Express Managed Lanes Project, 6.88%, 12/31/39

    2,005       2,155,535  
   

 

 

 
      16,018,211  
Virginia — 3.4%            

Ballston Quarter Community Development Authority, Tax Allocation Bonds, Series A:

   

5.00%, 03/01/26

    240       247,162  

5.13%, 03/01/31

    470       487,709  

City of Lexington Virginia IDA, RB, Washington & Lee University, 5.00%, 01/01/43

    425       460,411  

County of Fairfax Virginia IDA, Refunding RB, Health Care-Inova Health(b):

   

5.50%, 05/15/19

    475       492,456  

5.50%, 05/15/19

    885       917,993  

State of Virginia Public School Authority, RB, Fluvanna County School Financing,
6.50%, 12/01/18(b)

    1,200       1,232,832  

Tobacco Settlement Financing Corp., Refunding RB, Senior Series B-1, 5.00%, 06/01/47

    1,010       995,365  
   

 

 

 
      4,833,928  
Wisconsin — 0.6%            

Public Finance Authority, Refunding RB, Mery’s Wood at Marylhurst Projects,
5.25%, 05/15/52(a)

    735       792,521  
   

 

 

 

Total Municipal Bonds — 108.4%
(Cost — $145,104,443)

      153,088,768  
   

 

 

 

Municipal Bonds Transferred to Tender Option Bond Trusts(f)

 

California — 20.7%            

California Educational Facilities Authority, RB, University of Southern California, Series B, 5.25%, 10/01/18(b)(g)

    2,999       3,042,317  

Fremont Union High School District, GO, Refunding Series A, 4.00%, 08/01/46

    1,840       1,909,120  

Grossmont California Union High School District, GO, Election of 2008, Series B,
5.00%, 08/01/20(b)

    3,700       3,950,694  
 

 

 

     5  


Schedule of Investments  (unaudited) (continued)

April 30, 2018

  

BlackRock Municipal Income Investment Trust (BBF)

(Percentages shown are based on Net Assets)

 

Security  

Par

(000)

    Value  
California (continued)            

Los Angeles California Unified School District, GO, Series I, 5.00%, 01/01/34

  $ 600     $ 620,721  

Los Angeles Community College District California, GO, Election of 2008, Series C,
5.25%, 08/01/20(b)(g)

    4,041       4,341,329  

Los Angeles Community College District California, GO, Refunding, Go, Refunding, Election of 2008, Series A, 6.00%, 08/01/19(b)

    5,977       6,289,022  

San Diego Public Facilities Financing Authority Water, RB, Series B, 5.50%, 08/01/19(b)

    6,448       6,738,681  

University of California, RB, Series O,
5.75%, 05/15/19(b)

    2,310       2,403,745  
   

 

 

 
      29,295,629  
District of Columbia — 3.5%            

District of Columbia, RB, Series A,
5.50%, 12/01/30(g)

    2,129       2,246,338  

District of Columbia Water & Sewer Authority, Refunding RB, Senior Lien, Series A,
5.50%, 10/01/18(b)

    2,698       2,739,097  
   

 

 

 
      4,985,435  
Georgia — 0.7%            

County of Dalton Whitfield Joint Development Authority, RB, Hamilton Health Care System Obligation, 4.00%, 08/15/48

    1,025       1,024,949  
   

 

 

 
Idaho — 1.4%            

Idaho State Building Authority, RB, State Office Campus Project, Series A, 4.00%, 09/01/48

    1,900       1,959,707  
   

 

 

 
Illinois — 4.0%            

State of Illinois Finance Authority, RB, University of Chicago, Series B, 6.25%, 07/01/18(b)

    4,300       4,331,498  

State of Illinois Toll Highway Authority, RB, Series C, 5.00%, 01/01/38

    1,244       1,363,285  
   

 

 

 
      5,694,783  
Nevada — 4.3%            

County of Clark Nevada Water Reclamation District, GO(b):

   

Limited Tax, 6.00%, 07/01/18

    4,000       4,028,020  
Security  

Par

(000)

    Value  
Nevada (continued)            

County of Clark Nevada Water Reclamation District, GO(b) (continued):

   

Series B, 5.50%, 07/01/19

  $ 1,994     $ 2,075,660  
   

 

 

 
      6,103,680  
New Hampshire — 1.2%            

New Hampshire Health & Education Facilities Authority, RB, Dartmouth College,
5.25%, 06/01/19(b)(g)

    1,680       1,739,883  
   

 

 

 
New Jersey — 4.0%            

New Jersey Transportation Trust Fund Authority, RB, Transportation System:

   

Series A (AMBAC) (AGM), 5.00%, 12/15/32

    3,000       3,006,285  

Series B, 5.25%, 06/15/36(g)

    2,481       2,579,406  
   

 

 

 
      5,585,691  
New York — 15.2%            

City of New York New York Municipal Water Finance Authority, RB, Water & Sewer System, Fiscal 2009, Series A:

   

5.75%, 06/15/18(b)

    497       498,438  

5.75%, 06/15/40

    1,662       1,666,801  

City of New York New York Municipal Water Finance Authority, Refunding RB:

   

Series FF, 5.00%, 06/15/45

    2,499       2,710,218  

Water & Sewer System, 2nd General Resolution, Series FF-2, 5.50%, 06/15/40

    2,985       3,104,748  

City of New York New York Transitional Finance Authority, BARB, Fiscal 2009, Series S-3, 5.25%, 01/15/39

    2,499       2,555,812  

Metropolitan Transportation Authority, Refunding RB, Series C-1, 5.25%, 11/15/56

    1,700       1,915,063  

New York Liberty Development Corp., ARB, 1 World Trade Center Port Authority Consolidated Bonds, 5.25%, 12/15/43

    3,375       3,676,900  

New York Liberty Development Corp., Refunding RB, 4 World Trade Center Project, 5.75%, 11/15/51(g)

    1,980       2,190,978  

New York State Dormitory Authority, ERB, Personal Income Tax, Series B, 5.25%, 03/15/19(b)

    3,000       3,089,115  
   

 

 

 
      21,408,073  
 

 

 

6   


Schedule of Investments  (unaudited) (continued)

April 30, 2018

  

BlackRock Municipal Income Investment Trust (BBF)

(Percentages shown are based on Net Assets)

 

Security  

Par

(000)

    Value  
Pennsylvania — 2.7%            

Pennsylvania Turnpike Commission, RB, Sub-Series A, 5.50%, 12/01/42

  $ 1,514     $ 1,724,213  

Pennsylvania Turnpike Commission, Refunding RB, Sub Series B-2 (AGM), 5.00%, 06/01/35

    1,830       2,047,953  
   

 

 

 
      3,772,166  
Rhode Island — 1.6%            

Rhode Island Health & Educational Building Corp., RB, Series A, 4.00%, 09/15/47

    2,207       2,232,962  
   

 

 

 
Texas — 5.4%            

City of San Antonio Texas Public Service Board, Refunding RB, Series A, 5.25%, 02/01/19(b)(g)

    3,074       3,150,930  

County of Harris Texas Cultural Education Facilities Finance Corp., RB, Texas Children’s Hospital Project, 5.50%, 10/01/39

    4,200       4,395,195  
   

 

 

 
      7,546,125  
Security  

Par

(000)

     Value  
Virginia — 1.2%             

Hampton Roads Transportation Accountability Commission, RB, Transportation Fund, Senior Lien, Series A, 5.50%, 07/01/57(g)

  $ 1,473      $ 1,741,355  
    

 

 

 

Total Municipal Bonds Transferred to Tender Option Bond Trusts — 65.9%
(Cost — $90,624,893)

 

     93,090,438  
    

 

 

 

Total Long-Term Investments — 174.3%
(Cost — $235,729,336)

 

     246,179,206  
    

 

 

 
     Shares          
Short-Term Securities — 1.3%  

BlackRock Liquidity Funds, MuniCash, Institutional Class,
1.48%(h)(i)

    1,887,042        1,887,042  
    

 

 

 

Total Short-Term Securities — 1.3%
(Cost — $1,887,042)

 

     1,887,042  
    

 

 

 

Total Investments — 175.6%
(Cost — $237,616,378)

 

     248,066,248  

Liabilities in Excess of Other Assets — (1.1)%

 

     (1,560,446

Liability for TOB Trust Certificates, Including Interest Expense and Fees Payable — (37.9)%

 

     (53,486,589

VRDP Shares at Liquidity Value, Net of Deferred Offering
Cost — (36.6)%

 

     (51,711,355
    

 

 

 

Net Assets Applicable to Common Shares — 100.0%

 

   $ 141,307,858  
    

 

 

 
 
(a)  Security exempt from registration pursuant to Rule 144A under the Securities Act of 1933, as amended. These securities may be resold in transactions exempt from registration to qualified institutional investors.
(b)  U.S. 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)  When-issued security.
(d)  Zero-coupon bond.
(e)  Variable or floating rate security, which interest rate adjusts periodically based on changes in current interest rates and prepayments on the underlying pool of assets. Rate shown is the rate in effect as of period end.
(f)  Represent bonds transferred to a TOB Trust in exchange of cash and residual certificates received by the Trust. These bonds serve as collateral in a secured borrowing.
(g)  All or a portion of security is subject to a recourse agreement. The aggregate maximum potential amount the Trust could ultimately be required to pay under the agreement, which expire between May 7, 2018 to January 1, 2026, is $13,020,411.
(h)  Annualized 7-day yield as of period end.

 

 

     7  


Schedule of Investments  (unaudited) (continued)

April 30, 2018

  

BlackRock Municipal Income Investment Trust (BBF)

 

(i)  During the period ended April 30, 2018, investments in issuers considered to be an affiliate of the Trust for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

 

Affiliated   

Shares

Held at

07/31/17

    

Net

Activity

    

Shares

Held at

04/30/18

    

Value at

04/30/18

     Income     

Net

Realized

Gain (Loss) (a)

    

Change in

Unrealized

Appreciation

(Depreciation)

 

BlackRock Liquidity Funds, MuniCash, Institutional Class

            1,887,042        1,887,042      $ 1,887,042      $ 3,041      $ 30      $  
           

 

 

    

 

 

    

 

 

    

 

 

 

 

  (a)  Includes net capital gain distributions, if applicable.  

Derivative Financial Instruments Outstanding as of Period End

Futures Contracts

 

Description   

Number of

Contracts

      

Expiration

Date

      

Notional

Amount (000)

      

Value /
Unrealized

Appreciation

(Depreciation)

 

Short Contracts:

                 

10-Year U.S. Treasury Note

     13          06/20/18        $ 1,555        $ 9,082  

Long U.S. Treasury Bond

     19          06/20/18          2,733          1,596  

5-Year U.S. Treasury Note

     10          06/29/18          1,135          5,516  
                 

 

 

 
                  $ 16,194  
                 

 

 

 

Portfolio Abbreviations

AGC — Assured Guarantee Corp.

AGM — Assured Guaranty Municipal Corp.

AMBAC — American Municipal Bond Assurance Corp.

ARB — Airport Revenue Bonds

BARB — Building Aid Revenue Bonds

CAB — Capital Appreciation Bonds

EDA — Economic Development Authority

ERB — Education Revenue Bonds

GARB — General Airport Revenue Bonds

GO — General Obligation Bonds

IDA — Industrial Development Authority

IDB — Industrial Development Board

LRB — Lease Revenue Bonds

RB — Revenue Bonds

S/F — Single-Family

 

 

8   


Schedule of Investments  (unaudited) (continued)

April 30, 2018

  

BlackRock Municipal Income Investment Trust (BBF)

 

Fair Value Hierarchy as of Period End

Various inputs are used in determining the fair value of investments and derivative financial instruments. These inputs to valuation techniques are categorized into a fair value hierarchy consisting of three broad levels for financial reporting purposes as follows:

 

    Level 1 — Unadjusted price quotations in active markets/exchanges for identical assets or liabilities that Trust has the ability to access

 

    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 Trust’s own assumptions used in determining the fair value of investments and derivative financial instruments)

The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Accordingly, the degree of judgment exercised in determining fair value is greatest for instruments categorized in Level 3. The inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the fair value hierarchy classification is determined based on the lowest level input that is significant to the fair value measurement in its entirety. Investments classified within Level 3 have significant unobservable inputs used by the BlackRock Global Valuation Methodologies Committee (the “Global Valuation Committee”) in determining the price for Fair Valued Investments. Level 3 investments include equity or debt issued by privately held companies or funds. There may not be a secondary market, and/or there are a limited number of investors. Level 3 investments may also be adjusted to reflect illiquidity and/or non-transferability, with the amount of such discount estimated by the Global Valuation Committee in the absence of market information.

Changes in valuation techniques may result in transfers into or out of an assigned level within the hierarchy. In accordance with the Trust’s policy, transfers between different levels of the fair value hierarchy are deemed to have occurred as of the beginning of the reporting period. The categorization of a value determined for investments and derivative financial instruments is based on the pricing transparency of the investments and derivative financial instruments and is not necessarily an indication of the risks associated with investing in those securities. For information about the Trust’s policy regarding valuation of investments and derivative financial instruments, refer to the Trust’s most recent financial statements as contained in its semi-annual report.

The following tables summarize the Trust’s investments and derivative financial instruments categorized in the disclosure hierarchy:

 

      Level 1        Level 2        Level 3        Total  

Assets:

                 

Investments:

                 

Long-Term Investments(a)

   $        $ 246,179,206        $        $ 246,179,206  

Short-Term Securities

     1,887,042                            1,887,042  
  

 

 

      

 

 

      

 

 

      

 

 

 
   $ 1,887,042        $ 246,179,206        $        $ 248,066,248  
  

 

 

      

 

 

      

 

 

      

 

 

 

Derivative Financial Instruments(b)

                 

Assets:

                 

Interest rate contracts

   $ 16,194        $        $        $ 16,194  
  

 

 

      

 

 

      

 

 

      

 

 

 

 

  (a)  See above Schedule of Investments for values in each state or political subdivision.  
  (b)  Derivative financial instruments are futures contracts which are valued at the unrealized appreciation (depreciation) on the instrument.  

The Trust may hold assets and/or liabilities in which the fair value approximates the carrying amount for financial reporting purposes. As of period end, such assets and/or liabilities are categorized within the disclosure hierarchy as follows:

 

      Level 1        Level 2        Level 3        Total  

Liabilities:

                 

TOB Trust Certificates

   $        $ (53,276,411      $        $ (53,276,411

VRDP Shares at Liquidation Value

              (52,000,000                 (52,000,000
  

 

 

      

 

 

      

 

 

      

 

 

 
   $        $ (105,276,411      $        $ (105,276,411
  

 

 

      

 

 

      

 

 

      

 

 

 

During the period ended April 30, 2018, there were no transfers between levels.

 

 

     9  


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 13a-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 Municipal Income Investment Trust
By:       /s/ John M. Perlowski                    
  John M. Perlowski
  Chief Executive Officer (principal executive officer) of
  BlackRock Municipal Income Investment Trust

Date: June 18, 2018

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/ John M. Perlowski                    
  John M. Perlowski
  Chief Executive Officer (principal executive officer) of
  BlackRock Municipal Income Investment Trust

Date: June 18, 2018

 

By:       /s/ Neal J. Andrews                     
 

Neal J. Andrews

  Chief Financial Officer (principal financial officer) of
  BlackRock Municipal Income Investment Trust

Date: June 18, 2018