Form N-Q

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

FORM N-Q


QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number         811-07432         

        Nuveen Premium Income Municipal Fund 4, Inc.         
(Exact name of registrant as specified in charter)

Nuveen Investments
        333 West Wacker Drive, Chicago, Illinois 60606         

(Address of principal executive offices) (Zip code)


Kevin J. McCarthy Vice President and Secretary
        333 West Wacker Drive, Chicago, Illinois 60606         

(Name and address of agent for service)

Registrant's telephone number, including area code:         312-917-7700        

Date of fiscal year end:            10/31          

Date of reporting period:         7/31/08         

Form N-Q is to be used by management investment companies, other than small business investment companies registered on Form N-5 (§§ 239.24 and 274.5 of this chapter), to file reports with the Commission, not later than 60 days after the close of the first and third fiscal quarters, pursuant to rule 30b1-5 under the Investment Company Act of 1940 (17 CFR 270.30b1-5). The Commission may use the information provided on Form N-Q in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-Q, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-Q unless the Form displays a currently valid Office of Management and Budget ("OMB") control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to the Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.

Item 1. Schedule of Investments

    Portfolio of Investments (Unaudited)             
    Nuveen Premium Income Municipal Fund 4, Inc. (NPT)             
    July 31, 2008             
Principal        Optional Call         
Amount (000)    Description (1)    Provisions (2)    Ratings (3)    Value 

    Alabama – 4.9% (2.9% of Total Investments)             
$           5,150    Alabama 21st Century Authority, Tobacco Settlement Revenue Bonds, Series 2001, 5.750%, 12/01/16    12/11 at 101.00    A–   $  5,173,433 
2,395    Alabama Housing Finance Authority, FNMA Multifamily Housing Revenue Bonds, South Bay    2/11 at 102.00    AAA    2,367,625 
     Apartments, Series 2000K, 5.950%, 2/01/33 (Alternative Minimum Tax)             
11,895    Alabama Special Care Facilities Financing Authority, Birmingham, Hospital Revenue Bonds,    11/08 at 100.00    Aaa    11,913,199 
     Daughters of Charity National Health System – Providence Hospital and St. Vincent’s Hospital,             
     Series 1995, 5.000%, 11/01/25 (ETM)             
5,000    Alabama Special Care Facilities Financing Authority, Revenue Bonds, Ascension Health, Series    11/16 at 100.00    AA    4,784,376 
     2006C-2, 5.000%, 11/15/39 (UB)             
1,000    Birmingham Special Care Facilities Financing Authority, Alabama, Revenue Bonds, Baptist Health    11/15 at 100.00    Baa1    862,470 
     System Inc., Series 2005A, 5.000%, 11/15/30             
1,000    Courtland Industrial Development Board, Alabama, Pollution Control Revenue Bonds,    6/15 at 100.00    BBB    845,500 
     International Paper Company, Series 2005A, 5.000%, 6/01/25             

26,440    Total Alabama            25,946,603 

    Alaska – 0.9% (0.6% of Total Investments)             
1,665    Alaska Housing Finance Corporation, General Housing Purpose Bonds, Series 2005A, 5.000%,    12/14 at 100.00    AA    1,638,477 
     12/01/30 – FGIC Insured             
3,065    Alaska Municipal Bond Bank Authority, General Obligation Bonds, Series 2003E, 5.250%, 12/01/26    12/13 at 100.00    AA (4)    3,376,680 
     (Pre-refunded 12/01/13) – MBIA Insured             

4,730    Total Alaska            5,015,157 

    Arizona – 2.0% (1.2% of Total Investments)             
5,000    Arizona Tourism and Sports Authority, Tax Revenue Bonds, Multipurpose Stadium Facility    7/13 at 100.00    A2    4,946,000 
     Project, Series 2003A, 5.000%, 7/01/31 – MBIA Insured             
4,100    Salt River Project Agricultural Improvement and Power District, Arizona, Electric System    12/13 at 100.00    AA    4,228,166 
     Revenue Bonds, Series 2003, 5.000%, 12/01/18 – MBIA Insured             
2,000    Salt Verde Financial Corporation, Arizona, Senior Gas Revenue Bonds, Series 2007,    No Opt. Call    AA–    1,670,260 
     5.000%, 12/01/37             

11,100    Total Arizona            10,844,426 

    Arkansas – 0.0% (0.0% of Total Investments)             
33    Lonoke County Residential Housing Facilities Board, Arkansas, FNMA Mortgage-Backed Securities    10/08 at 100.00    Aaa    33,918 
     Program Single Family Mortgage Revenue Refunding Bonds, Series 1993A, 7.900%, 4/01/11             

    California – 17.4% (10.4% of Total Investments)             
10,000    Anaheim Public Finance Authority, California, Public Improvement Project Lease Bonds, Series    9/17 at 100.00    A    8,658,800 
     2007A-1, 4.375%, 3/01/37 – FGIC Insured             
17,000    California Health Facilities Financing Authority, Health Facility Revenue Bonds, Adventist    3/13 at 100.00    A    15,860,999 
     Health System/West, Series 2003A, 5.000%, 3/01/33             
5,000    California Health Facilities Financing Authority, Revenue Bonds, Kaiser Permanante System,    4/16 at 100.00    A+    4,593,900 
     Series 2006, 5.000%, 4/01/37             
2,900    California Health Facilities Financing Authority, Revenue Bonds, Sutter Health, Series 2007A,    11/16 at 100.00    AA–    2,728,175 
     5.000%, 11/15/42 (UB)             
11,000    California Infrastructure Economic Development Bank, First Lien Revenue Bonds, San Francisco    1/28 at 100.00    AAA    11,743,710 
     Bay Area Toll Bridge, Series 2003A, 5.000%, 7/01/33 (Pre-refunded 1/01/28) –             
     AMBAC Insured (UB)             
2,000    California Infrastructure Economic Development Bank, Revenue Bonds, Kaiser Hospital Assistance    8/11 at 102.00    A+    2,008,140 
     LLC, Series 2001A, 5.550%, 8/01/31             
1,180    California Statewide Community Development Authority, Revenue Bonds, Sutter Health, Tender    5/18 at 100.00    AA–    995,141 
     Option Bond Trust 2708, 13.370%, 11/15/48 (IF)             
19,545    California, General Obligation Bonds, Series 2005, 5.000%, 6/01/33 – CIFG Insured    6/15 at 100.00    A+    19,135,336 
4,780    Foothill/Eastern Transportation Corridor Agency, California, Toll Road Revenue Bonds, Series    No Opt. Call    AAA    3,927,439 
     1995A, 0.000%, 1/01/14 (ETM)             
    Golden State Tobacco Securitization Corporation, California, Enhanced Tobacco Settlement             
    Asset-Backed Bonds, Series 2007A-1:             
610     5.125%, 6/01/47    6/17 at 100.00    BBB    450,314 
1,000     5.750%, 6/01/47    6/17 at 100.00    BBB    821,300 
1,000    Golden State Tobacco Securitization Corporation, California, Tobacco Settlement Asset-Backed    6/13 at 100.00    AAA    1,143,400 
     Bonds, Series 2003A-1, 6.750%, 6/01/39 (Pre-refunded 6/01/13)             
3,190    Hillsborough City School District, San Mateo County, California, General Obligation Bonds,    No Opt. Call    AAA    1,182,374 
     Series 2006B, 0.000%, 9/01/27             
11,310    San Francisco Bay Area Rapid Transit District, California, Sales Tax Revenue Bonds, Refunding    7/16 at 100.00    AAA    10,174,589 
     Series 2006A, 4.250%, 7/01/31 – FSA Insured (UB)             
    San Joaquin Hills Transportation Corridor Agency, Orange County, California, Toll Road Revenue             
    Refunding Bonds, Series 1997A:             
4,430     0.000%, 1/15/32 – MBIA Insured    No Opt. Call    AA    1,045,879 
31,300     0.000%, 1/15/34 – MBIA Insured    No Opt. Call    AA    6,485,673 
1,945    South Gate Public Financing Authority, California, Water Revenue Refunding Bonds, Series    No Opt. Call    N/R    2,098,461 
     1996A, 6.000%, 10/01/12 – FGIC Insured             

128,190    Total California            93,053,630 

    Colorado – 4.6% (2.8% of Total Investments)             
2,000    Colorado Health Facilities Authority, Revenue Refunding Bonds, Catholic Health Initiatives,    9/11 at 100.00    AA (4)    2,143,000 
     Series 2001, 5.250%, 9/01/21 (Pre-refunded 9/01/11)             
450    Colorado Housing Finance Authority, Single Family Program Senior Bonds, Series 1999C-3,    10/09 at 105.00    Aa2    481,280 
     6.750%, 10/01/21             
2,695    Denver City and County, Colorado, Airport System Revenue Bonds, Series 1991D, 7.750%, 11/15/13    No Opt. Call    A+    2,918,981 
     (Alternative Minimum Tax)             
    Denver Convention Center Hotel Authority, Colorado, Senior Revenue Bonds, Convention Center             
    Hotel, Series 2003A:             
2,940     5.000%, 12/01/20 (Pre-refunded 12/01/13) – XLCA Insured    12/13 at 100.00    N/R (4)    3,153,914 
10,000     5.000%, 12/01/33 (Pre-refunded 12/01/13) – XLCA Insured    12/13 at 100.00    N/R (4)    10,727,600 
4,345    El Paso County School District 20, Academy, Colorado, General Obligation Bonds, Series 2002,    12/12 at 100.00    Aa3    4,615,824 
     5.250%, 12/15/17 – FGIC Insured             
755    Jefferson County School District R1, Colorado, General Obligation Bonds, Series 2004,    12/14 at 100.00    AAA    777,782 
     5.000%, 12/15/22 – FSA Insured (UB)             

23,185    Total Colorado            24,818,381 

    District of Columbia – 1.6% (0.9% of Total Investments)             
5    District of Columbia, General Obligation Bonds, Series 1993E, 6.000%, 6/01/09 – CAPMAC Insured    12/08 at 100.00    AAA    5,017 
    District of Columbia, Revenue Bonds, Georgetown University, Series 2001A:             
9,670     0.000%, 4/01/26 (Pre-refunded 4/01/11) – MBIA Insured    4/11 at 42.15    AA (4)    3,756,408 
15,235     0.000%, 4/01/30 (Pre-refunded 4/01/11) – MBIA Insured    4/11 at 32.93    AA (4)    4,624,127 

24,910    Total District of Columbia            8,385,552 

    Florida – 6.3% (3.7% of Total Investments)             
5,000    Broward County School Board, Florida, Certificates of Participation, Series 2003, 5.000%,    7/13 at 100.00    AA    4,882,700 
     7/01/28 – MBIA Insured             
5,000    Hillsborough County Aviation Authority, Florida, Revenue Bonds, Tampa International Airport,    10/13 at 100.00    AA    4,992,600 
     Series 2003A, 5.250%, 10/01/18 – MBIA Insured (Alternative Minimum Tax)             
5,000    Martin County Industrial Development Authority, Florida, Industrial Development Revenue Bonds,    12/08 at 100.00    BB+    5,009,400 
     Indiantown Cogeneration LP, Series 1994A, 7.875%, 12/15/25 (Alternative Minimum Tax)             
1,380    Miami-Dade County Housing Finance Authority, Florida, Multifamily Housing Revenue Bonds,    1/11 at 102.00    AAA    1,394,117 
     Sunset Bay Apartments, Series 2000-5A, 5.850%, 7/01/20 – FSA Insured (Alternative Minimum Tax)             
3,385    Miami-Dade County, Florida, Aviation Revenue Bonds, Miami International Airport, Series 2005A,    10/15 at 100.00    A2    2,963,094 
     5.000%, 10/01/37 – XLCA Insured (Alternative Minimum Tax)             
5,455    South Miami Health Facilities Authority, Florida, Hospital Revenue, Baptist Health System    8/17 at 100.00    AA–    5,124,863 
     Obligation Group, Series 2007, 5.000%, 8/15/42 (UB)             
9,500    Sunrise, Florida, Utility System Revenue Refunding Bonds, Series 1998, 5.000%, 10/01/28 –    10/18 at 100.00    AA    9,368,710 
     AMBAC Insured             

34,720    Total Florida            33,735,484 

    Georgia – 2.6% (1.6% of Total Investments)             
4,400    Atlanta, Georgia, Water and Wastewater Revenue Bonds, Series 1999A, 5.500%, 11/01/22 –    No Opt. Call    A    4,568,652 
     FGIC Insured             
2,880    Georgia Municipal Electric Authority, General Power Revenue Bonds, Series 1992B,    No Opt. Call    A+    3,231,245 
     8.250%, 1/01/11             
5,500    Georgia Municipal Electric Authority, General Power Revenue Bonds, Series 1993B, 5.700%,    No Opt. Call    AAA    6,206,420 
     1/01/19 – FGIC Insured (ETM)             

12,780    Total Georgia            14,006,317 

    Hawaii – 1.1% (0.6% of Total Investments)             
3,720    Honolulu City and County, Hawaii, General Obligation Refunding and Improvement Bonds, Series    No Opt. Call    AA    4,028,090 
     1993B, 5.000%, 10/01/13             
1,580    Honolulu City and County, Hawaii, General Obligation Refunding and Improvement Bonds, Series    No Opt. Call    Aaa    1,720,272 
     1993B, 5.000%, 10/01/13 (ETM)             

5,300    Total Hawaii            5,748,362 

    Idaho – 0.1% (0.0% of Total Investments)             
750    Madison County, Idaho, Hospital Revenue Certificates of Participation, Madison Memorial    9/16 at 100.00    BBB–    622,260 
     Hospital, Series 2006, 5.250%, 9/01/37             

    Illinois – 18.6% (11.0% of Total Investments)             
4,000    Chicago Board of Education, Illinois, General Obligation Lease Certificates, Series 1992A,    No Opt. Call    AA    4,398,600 
     6.250%, 1/01/15 – MBIA Insured             
17,000    Chicago Greater Metropolitan Area Sanitary District, Illinois, General Obligation Bonds, Series    12/16 at 100.00    AAA    18,787,210 
     2006, 5.000%, 12/01/35 (UB)             
5,550    Chicago, Illinois, Revenue Bonds, Midway Airport, Series 2001A, 5.125%, 1/01/26 – FSA Insured    1/11 at 101.00    AAA    5,330,442 
     (Alternative Minimum Tax)             
5,000    Chicago, Illinois, Sales Tax Revenue Bonds, Series 1998, 5.250%, 1/01/28 – FGIC Insured    1/09 at 101.50    AAA    5,044,150 
1,665    Chicago, Illinois, Third Lien General Airport Revenue Bonds, O’Hare International Airport,    1/16 at 100.00    A1    1,573,009 
     Series 2005A, 5.000%, 1/01/33 – FGIC Insured             
    Cook County School District 99, Cicero, Illinois, General Obligation School Bonds, Series 1997:             
1,455     8.500%, 12/01/13 – FGIC Insured    No Opt. Call    N/R    1,784,339 
1,685     8.500%, 12/01/15 – FGIC Insured    No Opt. Call    N/R    2,175,571 
6,030    Illinois Development Finance Authority, GNMA Collateralized Mortgage Revenue Bonds, Greek    4/11 at 105.00    Aaa    6,773,981 
     American Nursing Home Committee, Series 2000A, 7.600%, 4/20/40             
1,385    Illinois Finance Authority, General Obligation Debt Certificates, Local Government Program –    12/14 at 100.00    Aa3    1,422,257 
     Kankakee County, Series 2005B, 5.000%, 12/01/18 – AMBAC Insured             
2,515    Illinois Finance Authority, Revenue Bonds, Northwestern Memorial Hospital, Series 2004A,    8/14 at 100.00    AA+ (4)    2,776,434 
     5.250%, 8/15/34 (Pre-refunded 8/15/14)             
5,565    Illinois Finance Authority, Revenue Bonds, Sherman Health Systems, Series 2007A,    8/17 at 100.00    A–    5,148,905 
     5.500%, 8/01/37             
4,000    Illinois Health Facilities Authority, FHA-Insured Mortgage Revenue Refunding Bonds, Sinai    8/13 at 100.00    AAA    3,929,480 
     Health System, Series 2003, 5.150%, 2/15/37             
4,000    Illinois Health Facilities Authority, Revenue Bonds, Condell Medical Center, Series 2002,    5/12 at 100.00    Baa3    3,626,040 
     5.500%, 5/15/32             
4,075    Illinois Health Facilities Authority, Revenue Refunding Bonds, Lutheran General Health System,    No Opt. Call    Aa3    4,662,452 
     Series 1993C, 7.000%, 4/01/14             
9,795    Lake, Cook, Kane and McHenry Counties Community Unit School District 220, Barrington,    No Opt. Call    AAA    10,772,884 
     Illinois, School Refunding Bonds, Series 2002, 5.250%, 12/01/19 – FSA Insured (UB)             
    Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Expansion             
    Project, Series 2002A:             
9,500     0.000%, 6/15/24 – MBIA Insured    6/22 at 101.00    AAA    6,407,940 
4,540     5.000%, 12/15/28 – MBIA Insured    6/12 at 101.00    AAA    4,572,915 
36,040     0.000%, 6/15/40 – MBIA Insured    No Opt. Call    AAA    6,334,751 
3,050    Regional Transportation Authority, Cook, DuPage, Kane, Lake, McHenry and Will Counties,    No Opt. Call    AA    3,648,563 
     Illinois, General Obligation Bonds, Series 1990A, 7.200%, 11/01/20 – AMBAC Insured             

126,850    Total Illinois            99,169,923 

    Indiana – 9.6% (5.7% of Total Investments)             
    Carmel Redevelopment Authority, Indiana, Lease Rent Revenue Bonds, Series 2005:             
1,950     0.000%, 2/01/24    No Opt. Call    AA    856,362 
2,705     0.000%, 2/01/25    No Opt. Call    AA    1,133,774 
3,000    Hospital Authority of Delaware County, Indiana, Hospital Revenue Bonds, Cardinal Health    8/16 at 100.00    Baa2    2,652,390 
     System, Series 2006, 5.250%, 8/01/36             
3,965    Indiana Educational Facilities Authority, Revenue Bonds, Butler University, Series 2001,    2/11 at 100.00    AA    4,080,421 
     5.500%, 2/01/26 – MBIA Insured             
1,500    Indiana Educational Facilities Authority, Revenue Bonds, University of Indianapolis, Series    10/09 at 101.00    AAA    1,566,405 
     1999, 5.750%, 10/01/19 – FSA Insured             
22,000    Indiana Health Facility Financing Authority, Hospital Revenue Bonds, Clarian Health Obligated    8/10 at 101.50    AA (4)    23,679,255 
     Group, Series 2000A, 5.500%, 2/15/30 (Pre-refunded 8/15/10) – MBIA Insured             
3,000    Indiana Health Facility Financing Authority, Hospital Revenue Refunding Bonds, Columbus    No Opt. Call    AAA    3,411,510 
     Regional Hospital, Series 1993, 7.000%, 8/15/15 – FSA Insured             
2,800    Indiana Health Facility Financing Authority, Revenue Bonds, Community Hospitals of Indiana,    5/15 at 100.00    AA    2,646,000 
     Series 2005A, 5.000%, 5/01/35 – AMBAC Insured             
4,000    Indiana Transportation Finance Authority, Highway Revenue Bonds, Series 2003A, 5.000%,    6/13 at 100.00    AAA    4,094,480 
     6/01/23 – FSA Insured             
6,000    Indiana Transportation Finance Authority, Highway Revenue Bonds, Series 2003A, 5.000%, 6/01/24    6/13 at 100.00    AAA    6,511,200 
     (Pre-refunded 6/01/13) – FSA Insured             
420    Marion County Convention and Recreational Facilities Authority, Indiana, Excise Tax Lease    6/09 at 100.00    AA    413,927 
     Rental Revenue Bonds, Series 1997A, 5.000%, 6/01/27 – MBIA Insured             

51,340    Total Indiana            51,045,724 

    Iowa – 0.2% (0.1% of Total Investments)             
1,000    Iowa Finance Authority, Health Facility Revenue Bonds, Care Initiatives Project, Series 2006A,    7/16 at 100.00    BBB–    923,700 
     5.000%, 7/01/20             

    Kansas – 2.0% (1.2% of Total Investments)             
2,000    Olathe, Kansas, Health Facilities Revenue Bonds, Olathe Medical Center, Series 2000A, 5.500%,    9/10 at 100.00    AA    2,066,200 
     9/01/25 – AMBAC Insured             
6,825    Sedgwick County Unified School District 259, Wichita, Kansas, General Obligation Bonds, Series    9/10 at 100.00    AA    6,695,598 
     2000, 3.500%, 9/01/16             
1,750    Wamego, Kansas, Pollution Control Revenue Bonds, Kansas Gas and Electric Company, Series 2004,    6/14 at 100.00    AA    1,720,285 
     5.300%, 6/01/31 – MBIA Insured             

10,575    Total Kansas            10,482,083 

    Louisiana – 7.2% (4.3% of Total Investments)             
1,750    Louisiana Local Government Environmental Facilities and Community Development Authority, GNMA    6/12 at 105.00    Aaa    1,876,385 
     Collateralized Mortgage Revenue Refunding Bonds, Sharlo Apartments, Series 2002A,             
     6.500%, 6/20/37             
5,150    Louisiana Public Facilities Authority, Hospital Revenue Bonds, Franciscan Missionaries of Our    8/15 at 100.00    A+    4,959,399 
     Lady Health System, Series 2005A, 5.250%, 8/15/32             
10,000    Louisiana Public Facilities Authority, Revenue Bonds, Archdiocese of New Orleans, Series 2007,    7/17 at 100.00    A–    8,445,600 
     4.500%, 7/01/37 – CIFG Insured             
3,800    Louisiana Public Facilities Authority, Revenue Bonds, Ochsner Clinic Foundation Project,    5/17 at 100.00    A3    3,567,364 
     Series 2007A, 5.500%, 5/15/47             
    Louisiana State, Gasoline Tax Revenue Bonds, Series 2006:             
1,480     4.750%, 5/01/39 – FSA Insured (UB)    5/16 at 100.00    AAA    1,395,566 
15,820     4.500%, 5/01/41 – FGIC Insured (UB)    5/16 at 100.00    AA–    14,040,725 
170    Louisiana State, Gasoline Tax Revenue Bonds, Series 2006, Residuals 660-1, 7.758%, 5/01/41 –    5/16 at 100.00    AA–    93,517 
     FGIC Insured (IF)             
3,795    Orleans Levee District, Louisiana, Levee District General Obligation Bonds, Series 1986,    12/08 at 100.00    AAA    3,821,034 
     5.950%, 11/01/14 – FSA Insured             

41,965    Total Louisiana            38,199,590 

    Maryland – 2.1% (1.3% of Total Investments)             
2,050    Maryland Community Development Administration, Housing Revenue Bonds, Series 1996A,    1/09 at 100.00    Aa2    2,060,845 
     5.875%, 7/01/16             
2,900    Maryland Community Development Administration, Housing Revenue Bonds, Series 1997A, 6.000%,    1/09 at 101.00    Aa2    2,899,826 
     7/01/39 (Alternative Minimum Tax)             
50    Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, MedStar Health,    8/14 at 100.00    A–    49,654 
     Series 2004, 5.375%, 8/15/24             
2,210    Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, Western Maryland    7/16 at 100.00    AA    2,012,890 
     Health, Series 2006A, 4.750%, 7/01/36 – MBIA Insured (UB)             
1,935    Montgomery County Housing Opportunities Commission, Maryland, GNMA/FHA-Insured Multifamily    1/09 at 100.00    Aa2    1,962,206 
     Housing Revenue Bonds, Series 1996B, 6.400%, 7/01/28 (Alternative Minimum Tax)             
2,315    Montgomery County Housing Opportunities Commission, Maryland, Multifamily Housing Development    7/10 at 100.00    Aaa    2,342,525 
     Bonds, Series 2000B, 6.125%, 7/01/20 (Alternative Minimum Tax)             

11,460    Total Maryland            11,327,946 

    Massachusetts – 1.0% (0.6% of Total Investments)             
3,585    Massachusetts Development Finance Agency, Revenue Bonds, Curry College, Series 2005A, 5.000%,    3/15 at 100.00    BBB    3,145,838 
     3/01/35 – ACA Insured             
1,000    Massachusetts Development Finance Agency, Revenue Bonds, Orchard Cove, Series 2007,    10/12 at 102.00    BB–    871,610 
     5.250%, 10/01/26             
1,000    Massachusetts Health and Educational Facilities Authority, Revenue Bonds, Milton Hospital    7/15 at 100.00    BBB–    874,940 
     Project, Series 2005D, 5.375%, 7/01/35             
870    Massachusetts Water Resources Authority, General Revenue Bonds, Series 2007, Residual    2/17 at 100.00    AAA    509,298 
     Trust 7039, 9.722%, 8/01/46 – FSA Insured (IF)             

6,455    Total Massachusetts            5,401,686 

    Michigan – 6.9% (4.1% of Total Investments)             
6,000    Detroit, Michigan, Second Lien Sewerage Disposal System Revenue Bonds, Series 2005A, 5.000%,    7/15 at 100.00    AA    5,776,440 
     7/01/35 – MBIA Insured             
8,915    Detroit, Michigan, Senior Lien Water Supply System Revenue Bonds, Series 1997A, 5.000%,    1/09 at 100.00    AAA    8,914,643 
     7/01/27 – MBIA Insured             
5,400    Detroit, Michigan, Sewer Disposal System Revenue Bonds, Second Lien, Series 2006B, 4.625%,    7/16 at 100.00    A    4,903,416 
     7/01/34 – FGIC Insured             
5,000    Michigan State Building Authority, Revenue Refunding Bonds, Facilities Program, Series 2003II,    10/13 at 100.00    AA    4,954,450 
     5.000%, 10/15/29 – MBIA Insured             
10,500    Michigan State Hospital Finance Authority, Hospital Revenue Bonds, Detroit Medical Center    8/08 at 101.00    Ba3    9,238,320 
     Obligated Group, Series 1998A, 5.250%, 8/15/23             
1,000    Michigan State Hospital Finance Authority, Revenue Bonds, Chelsea Community Hospital, Series    5/15 at 100.00    BBB    859,660 
     2005, 5.000%, 5/15/30             
2,000    Michigan State Hospital Finance Authority, Revenue Bonds, Trinity Health Care Group, Series    12/16 at 100.00    Aa2    1,956,740 
     2006A, 5.000%, 12/01/31 (UB)             

38,815    Total Michigan            36,603,669 

    Minnesota – 1.3% (0.7% of Total Investments)             
650    Minneapolis-St. Paul Housing Finance Board, Minnesota, FNMA/GNMA Mortgage-Backed Securities    11/08 at 101.00    AAA    658,119 
     Program Single Family Mortgage Revenue Bonds, Series 1997, 5.800%, 11/01/30 (Alternative             
     Minimum Tax)             
3,500    Minneapolis-St. Paul Metropolitan Airports Commission, Minnesota, Airport Revenue Bonds,    1/11 at 100.00    AAA    3,718,785 
     Series 2001A, 5.250%, 1/01/25 (Pre-refunded 1/01/11) – FGIC Insured             
2,875    Saint Paul Port Authority, Minnesota, Lease Revenue Bonds, Regions Hospital Parking Ramp    8/16 at 100.00    N/R    2,330,044 
     Project, Series 2007-1, 5.000%, 8/01/36             

7,025    Total Minnesota            6,706,948 

    Mississippi – 1.6% (1.0% of Total Investments)             
2,975    Mississippi Hospital Equipment and Facilities Authority, Revenue Bonds, Baptist Memorial    9/14 at 100.00    AA    2,926,478 
     Healthcare, Series 2004B-1, 5.000%, 9/01/24 (UB)             
5,180    Mississippi, General Obligation Refunding Bonds, Series 2002A, 5.500%, 12/01/18    No Opt. Call    AA    5,823,667 

8,155    Total Mississippi            8,750,145 

    Missouri – 0.8% (0.5% of Total Investments)             
1,450    Cape Girardeau County Industrial Development Authority, Missouri, Health Facilities Revenue    6/17 at 100.00    N/R    1,208,851 
     Bonds, Southeast Missouri Hospital Association, Series 2007, 5.000%, 6/01/36             
3,000    Missouri Health and Educational Facilities Authority, Revenue Bonds, BJC Health System, Series    5/13 at 100.00    AA    3,005,430 
     2003, 5.125%, 5/15/24             

4,450    Total Missouri            4,214,281 

    Nebraska – 1.7% (1.0% of Total Investments)             
9,000    NebHelp Inc., Nebraska, Senior Subordinate Bonds, Student Loan Program, Series 1993A-5A,    No Opt. Call    A2    9,292,590 
     6.250%, 6/01/18 – MBIA Insured (Alternative Minimum Tax)             

    Nevada – 2.5% (1.5% of Total Investments)             
4,500    Clark County School District, Nevada, General Obligation School Improvement Bonds, Series    No Opt. Call    AA    4,866,615 
     1991A, 7.000%, 6/01/10 – MBIA Insured             
7,000    Clark County, Nevada, Motor Vehicle Fuel Tax Highway Improvement Revenue Bonds, Series 2003,    7/13 at 100.00    AA    7,149,450 
     5.000%, 7/01/23 – AMBAC Insured             
5,425    Director of Nevada State Department of Business and Industry, Revenue Bonds, Las Vegas    No Opt. Call    AA    1,283,664 
     Monorail Project, First Tier, Series 2000, 0.000%, 1/01/25 – AMBAC Insured             

16,925    Total Nevada            13,299,729 

    New Jersey – 4.8% (2.9% of Total Investments)             
500    Burlington County Bridge Commission, New Jersey, Economic Development Revenue Bonds, The    1/18 at 100.00    N/R    442,915 
     Evergreens Project, Series 2007, 5.625%, 1/01/38             
1,100    New Jersey Health Care Facilities Financing Authority, Revenue Bonds, Trinitas Hospital    7/10 at 101.00    BBB– (4)    1,213,311 
     Obligated Group, Series 2000, 7.500%, 7/01/30 (Pre-refunded 7/01/10)             
880    New Jersey Turnpike Authority, Revenue Bonds, Series 1991C, 6.500%, 1/01/16 – MBIA Insured    No Opt. Call    AA    1,023,634 
    New Jersey Turnpike Authority, Revenue Bonds, Series 1991C:             
300     6.500%, 1/01/16 – MBIA Insured (ETM)    No Opt. Call    AA (4)    358,440 
2,345     6.500%, 1/01/16 – MBIA Insured (ETM)    No Opt. Call    AA (4)    2,669,712 
11,070    Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds,    6/12 at 100.00    AAA    11,855,859 
     Series 2002, 5.750%, 6/01/32 (Pre-refunded 6/01/12)             
3,995    Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds,    6/13 at 100.00    AAA    4,645,026 
     Series 2003, 6.750%, 6/01/39 (Pre-refunded 6/01/13)             
5,000    Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds,    6/17 at 100.00    BBB    3,585,450 
     Series 2007-1A, 4.750%, 6/01/34             

25,190    Total New Jersey            25,794,347 

    New York – 8.4% (5.0% of Total Investments)             
855    Albany Industrial Development Agency, New York, Revenue Bonds, Brighter Choice Charter    4/17 at 100.00    N/R    734,599 
     Schools, Series 2007A, 5.000%, 4/01/32             
1,200    Hempstead Industrial Development Agency, New York, Resource Recovery Revenue Refunding Bonds,    No Opt. Call    Baa3    1,194,960 
     American Ref-Fuel Company of Hempstead LP, Series 2001, 5.000%, 12/01/10 (Mandatory             
     put 6/01/10)             
4,070    Hudson Yards Infrastructure Corporation, New York, Revenue Bonds, Series 2006A,    2/17 at 100.00    AA    3,551,156 
     4.500%, 2/15/47 – MBIA Insured (UB)             
3,300    Long Island Power Authority, New York, Electric System Revenue Bonds, Series 2006F,    11/16 at 100.00    AA    2,899,512 
     4.250%, 5/01/33 – MBIA Insured (UB)             
6,740    New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Fiscal    5/10 at 100.00    AAA    6,776,463 
     Series 1998C, 5.000%, 5/01/26             
    New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Fiscal             
    Series 2000C:             
3,630     5.875%, 11/01/16 (Pre-refunded 5/01/10)    5/10 at 101.00    AAA    3,898,765 
220     5.875%, 11/01/16 (Pre-refunded 5/01/10)    5/10 at 101.00    AAA    236,249 
5,000     5.500%, 11/01/24 (Pre-refunded 5/01/10)    5/10 at 101.00    AAA    5,337,300 
    New York State Tobacco Settlement Financing Corporation, Tobacco Settlement Asset-Backed and             
    State Contingency Contract-Backed Bonds, Series 2003A-1:             
10,800     5.500%, 6/01/16    6/10 at 100.00    AA–    11,081,016 
2,500     5.500%, 6/01/18    6/12 at 100.00    AA–    2,614,725 
6,250    Port Authority of New York and New Jersey, Special Project Bonds, JFK International Air    No Opt. Call    AA    6,650,813 
     Terminal LLC, Sixth Series 1997, 6.250%, 12/01/15 – MBIA Insured (Alternative Minimum Tax)             

44,565    Total New York            44,975,558 

    North Carolina – 2.9% (1.7% of Total Investments)             
750    Charlotte-Mecklenburg Hospital Authority, North Carolina, Health Care System Revenue Bonds,    1/17 at 100.00    AA–    735,113 
     Carolinas Health Care, Series 2007A, 5.000%, 1/15/31             
2,445    North Carolina Infrastructure Finance Corporation, Certificates of Participation, Correctional    2/14 at 100.00    AA+    2,509,841 
     Facilities, Series 2004A, 5.000%, 2/01/21             
2,000    North Carolina Municipal Power Agency 1, Catawba Electric Revenue Bonds, Series 1992, 6.000%,    No Opt. Call    AA    2,129,180 
     1/01/11 – MBIA Insured             
10,000    North Carolina Municipal Power Agency 1, Catawba Electric Revenue Bonds, Series 2003A, 5.250%,    1/13 at 100.00    AA    10,276,800 
     1/01/18 – MBIA Insured             

15,195    Total North Carolina            15,650,934 

    Ohio – 3.2% (1.9% of Total Investments)             
5,890    Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue    6/17 at 100.00    BBB    5,251,171 
     Bonds, Senior Lien, Series 2007A-2, 5.125%, 6/01/24             
8,065    Cleveland, Ohio, Airport System Revenue Bonds, Series 2001A, 5.000%, 1/01/31 – FSA Insured    1/10 at 101.00    AAA    8,021,610 
3,000    Franklin County, Ohio, Development Revenue Bonds, American Chemical Society, Series 1999,    10/09 at 101.00    A+    3,087,840 
     5.800%, 10/01/14             
1,000    Franklin County, Ohio, FHA-Insured Multifamily Housing Mortgage Revenue Bonds, Hamilton Creek    1/09 at 100.00    Aa2    981,310 
     Apartments Project, Series 1994A, 5.550%, 7/01/24 (Alternative Minimum Tax)             

17,955    Total Ohio            17,341,931 

    Oklahoma – 1.7% (1.0% of Total Investments)             
275    Oklahoma Housing Finance Agency, Single Family Mortgage Revenue Bonds, Homeownership Loan    3/10 at 101.00    Aaa    277,654 
     Program, Series 2000C-2, 6.200%, 9/01/28 (Alternative Minimum Tax)             
5,615    Tulsa County Industrial Authority, Oklahoma, Health Care Revenue Bonds, Saint Francis Health    12/16 at 100.00    AA    5,176,076 
     System, Series 2006, 5.000%, 12/15/36 (UB)             
40    Tulsa County Industrial Authority, Oklahoma, Health Care Revenue Bonds, Saint Francis Health    12/16 at 100.00    AA    27,492 
     System, Series 2006, Trust 3500, 12.105%, 12/15/36 (IF)             
3,340    Tulsa Industrial Authority, Oklahoma, Hospital Revenue Refunding Bonds, Hillcrest Medical    No Opt. Call    AA (4)    3,472,999 
     Center, Series 1996, 6.500%, 6/01/09 – CONNIE LEE Insured (ETM)             

9,270    Total Oklahoma            8,954,221 

    Pennsylvania – 1.9% (1.1% of Total Investments)             
500    Bucks County Industrial Development Authority, Pennsylvania, Charter School Revenue Bonds,    3/17 at 100.00    BBB    405,550 
     School Lane Charter School, Series 2007A, 5.000%, 3/15/37             
1,800    Pennsylvania Economic Development Financing Authority, Senior Lien Resource Recovery Revenue    10/08 at 100.00    B+    1,794,258 
     Bonds, Northampton Generating Project, Series 1994A, 6.400%, 1/01/09 (Alternative Minimum Tax)             
5,490    Pennsylvania Public School Building Authority, Lease Revenue Bonds, School District of    12/16 at 100.00    AAA    5,059,694 
     Philadelphia, Series 2006B, 4.500%, 6/01/32 – FSA Insured (UB)             
2,600    Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Series 2004A, 5.500%, 12/01/31 –    12/14 at 100.00    AA    2,689,596 
     AMBAC Insured             

10,390    Total Pennsylvania            9,949,098 

    Puerto Rico – 2.6% (1.5% of Total Investments)             
12,390    Puerto Rico, General Obligation and Public Improvement Refunding Bonds, Series 1997, 6.500%,    No Opt. Call    AA    13,692,684 
     7/01/13 – MBIA Insured             

    Rhode Island – 3.4% (2.0% of Total Investments)             
20,000    Rhode Island Tobacco Settlement Financing Corporation, Tobacco Settlement Asset-Backed Bonds,    6/12 at 100.00    BBB    18,111,199 
     Series 2002A, 6.250%, 6/01/42             

    South Carolina – 4.4% (2.6% of Total Investments)             
4,120    Medical University Hospital Authority, South Carolina, FHA-Insured Mortgage Revenue Bonds,    8/14 at 100.00    AA    4,213,936 
     Series 2004A, 5.250%, 2/15/23 – MBIA Insured             
3,000    Myrtle Beach, South Carolina, Hospitality and Accommodation Fee Revenue Bonds, Series 2004A,    6/14 at 100.00    A+    2,869,560 
     5.000%, 6/01/36 – FGIC Insured             
    Piedmont Municipal Power Agency, South Carolina, Electric Revenue Bonds, Series 1991:             
5,000     6.250%, 1/01/21 – FGIC Insured    No Opt. Call    Baa1    5,592,400 
5,750     4.000%, 1/01/23 – MBIA Insured    1/09 at 100.00    AA    5,314,668 
5,085    Piedmont Municipal Power Agency, South Carolina, Electric Revenue Refunding Bonds, Series    No Opt. Call    AA    5,401,389 
     1998A, 5.500%, 1/01/13 – MBIA Insured             

22,955    Total South Carolina            23,391,953 

    South Dakota – 0.3% (0.2% of Total Investments)             
1,750    South Dakota Health and Educational Facilities Authority, Revenue Bonds, Sioux Valley    11/14 at 100.00    AA–    1,767,325 
     Hospitals, Series 2004A, 5.500%, 11/01/31             

    Tennessee – 0.6% (0.4% of Total Investments)             
5,075    Knox County Health, Educational and Housing Facilities Board, Tennessee, Hospital Revenue    1/17 at 30.07    A–    614,532 
     Refunding Bonds, Covenant Health, Series 2006, 0.000%, 1/01/41             
680    Sullivan County Health Educational and Housing Facilities Board, Tennessee, Revenue Bonds,    9/16 at 100.00    BBB+    603,568 
     Wellmont Health System, Series 2006C, 5.250%, 9/01/36             
    Sumner County Health, Educational, and Housing Facilities Board, Tennessee, Revenue Refunding             
    Bonds, Sumner Regional Health System Inc., Series 2007:             
860     5.500%, 11/01/37    11/17 at 100.00    N/R    783,391 
1,500     5.500%, 11/01/46    11/17 at 100.00    N/R    1,334,175 

8,115    Total Tennessee            3,335,666 

    Texas – 20.1% (11.9% of Total Investments)             
3,000    Alliance Airport Authority, Texas, Special Facilities Revenue Bonds, American Airlines Inc.,    12/12 at 100.00    CCC+    1,356,360 
     Series 2007, 5.250%, 12/01/29 (Alternative Minimum Tax)             
5,440    Board of Regents, University of Texas System, Financing System Revenue Bonds, Series 2006F,    2/17 at 100.00    AAA    4,910,600 
     4.250%, 8/15/36 (UB)             
4,000    Central Texas Regional Mobility Authority, Travis and Williamson Counties, Toll Road Revenue    1/15 at 100.00    BBB–    3,535,560 
     Bonds, Series 2005, 5.000%, 1/01/35 – FGIC Insured             
3,345    Columbia-Brazoria Independent School District, Texas, Unlimited Tax School Building Bonds,    2/09 at 100.00    AAA    3,397,583 
     Series 1999, 4.750%, 2/01/25 (Pre-refunded 2/01/09)             
2,250    Dallas-Ft. Worth International Airport, Texas, Joint Revenue Bonds, Series 2004B, 5.000%,    11/14 at 100.00    AAA    2,130,030 
     11/01/27 – FSA Insured (Alternative Minimum Tax)             
8,000    Dallas-Ft. Worth International Airport, Texas, Joint Revenue Refunding and Improvement Bonds,    11/11 at 100.00    A+    8,025,600 
     Series 2001A, 5.875%, 11/01/19 – FGIC Insured (Alternative Minimum Tax)             
6,000    Garland Housing Finance Corporation, Texas, Multifamily Housing Revenue Bonds, Legacy Pointe    12/11 at 101.00    N/R    6,169,680 
     Apartments, Series 2000, 7.500%, 6/01/40 (Alternative Minimum Tax)             
7,000    Harris County Health Facilities Development Corporation, Texas, Thermal Utility Revenue Bonds,    11/13 at 100.00    AA    6,852,160 
     TECO Project, Series 2003, 5.000%, 11/15/30 – MBIA Insured             
28,305    Houston, Texas, Hotel Occupancy Tax and Special Revenue Bonds, Convention and Entertainment    No Opt. Call    AA    9,262,811 
     Project, Series 2001B, 0.000%, 9/01/28 – AMBAC Insured             
7,500    Houston, Texas, Junior Lien Water and Sewerage System Revenue Refunding Bonds, Series 2002A,    No Opt. Call    AAA    8,592,300 
     5.750%, 12/01/32 – FSA Insured (ETM)             
33,505    Leander Independent School District, Williamson and Travis Counties, Texas, General Obligation    8/14 at 25.08    AAA    5,714,948 
     Bonds, Series 2006, 0.000%, 8/15/39             
69    Midland Housing Finance Corporation, Texas, Single Family Mortgage Revenue Refunding Bonds,    11/08 at 100.00    Aaa    70,244 
     Series 1992A, 8.450%, 12/01/11             
    Montgomery Independent School District, Montgomery County, Texas, Unlimited Tax School             
    Building and Refunding Bonds, Series 2001:             
730     5.500%, 2/15/21    2/11 at 100.00    AAA    764,712 
760     5.500%, 2/15/23    2/11 at 100.00    AAA    790,788 
    Montgomery Independent School District, Montgomery County, Texas, Unlimited Tax School             
    Building and Refunding Bonds, Series 2001:             
1,570     5.500%, 2/15/21 (Pre-refunded 2/15/11)    2/11 at 100.00    Aaa    1,679,146 
1,640     5.500%, 2/15/23 (Pre-refunded 2/15/11)    2/11 at 100.00    Aaa    1,754,013 
    Mt. Pleasant Independent School District, Titus County, Texas, General Obligation Refunding             
    Bonds, Series 2001:             
3,025     5.000%, 2/15/26    8/11 at 100.00    Aaa    3,050,350 
2,300     5.125%, 2/15/31    8/11 at 100.00    Aaa    2,311,178 
700    Mt. Pleasant Independent School District, Titus County, Texas, General Obligation Refunding    8/11 at 100.00    Aaa    748,461 
     Bonds, Series 2001, 5.125%, 2/15/31 (Pre-refunded 8/15/11)             
2,500    North Texas Thruway Authority, Second Tier System Revenue Refunding Bonds, Series 2008,    1/18 at 100.00    A3    2,413,975 
     5.750%, 1/01/38             
6,000    Raven Hills Higher Education Corporation, Texas, Student Housing Revenue Bonds, Angelo State    8/12 at 100.00    A2 (4)    6,438,600 
     University – Texan Hall LLC, Series 2002A, 5.000%, 8/01/25 (Pre-refunded 8/01/12) –             
     MBIA Insured             
3,410    Retama Development Corporation, Texas, Special Facilities Revenue Bonds, Retama Park    12/12 at 100.00    AAA    3,998,771 
     Racetrack, Series 1993, 8.750%, 12/15/18 (Pre-refunded 12/15/12) (6)             
1,800    Sam Rayburn Municipal Power Agency, Texas, Power Supply System Revenue Refunding Bonds, Series    10/12 at 100.00    A    1,799,334 
     2002A, 5.750%, 10/01/21 – RAAI Insured             
4,700    Spring Branch Independent School District, Harris County, Texas, Limited Tax Schoolhouse and    2/11 at 100.00    AAA    4,976,219 
     Refunding Bonds, Series 2001, 5.125%, 2/01/26 (Pre-refunded 2/01/11)             
5,200    Tarrant County Cultural & Educational Facilities Financing Corporation, Texas, Revenue Bonds,    2/17 at 100.00    AA–    4,953,624 
     Series 2007A, 5.000%, 2/15/36 (UB)             
250    Tarrant County Cultural and Educational Facilities Finance Corporation, Texas, Revenue Bonds,    2/17 at 100.00    AA–    202,620 
     Texas Health Resources Project, Trust 1031, 12.658%, 2/15/36 (IF)             
600    Texas, General Obligation Bonds, Transportation Commission Mobility Fund, Series 2007,    4/17 at 100.00    AA    466,608 
     Residuals 1872-1, 10.670%, 4/01/33 (IF)             
2,250    Texas, General Obligation Bonds, Transportation Commission Mobility Fund, Series 2007,    4/17 at 100.00    AA    1,749,780 
     Residuals 1872-2, 10.670%, 4/01/33 (IF)             
8,500    Travis County Health Facilities Development Corporation, Texas, Hospital Revenue Bonds,    11/08 at 100.00    Aaa    8,962,060 
     Daughters of Charity National Health System, Series 1993B, 6.000%, 11/15/22 (ETM)             

154,349    Total Texas            107,078,115 

    Utah – 2.2% (1.3% of Total Investments)             
4,845    Bountiful, Davis County, Utah, Hospital Revenue Refunding Bonds, South Davis Community    12/08 at 101.00    N/R    4,619,078 
     Hospital Project, Series 1998, 5.750%, 12/15/18             
4,995    Intermountain Power Agency, Utah, Power Supply Revenue Bonds, Series 1996A,    1/09 at 100.00    Aa3 (4)    5,004,141 
     6.150%, 7/01/14 (ETM)             
490    Utah Housing Finance Agency, Single Family Mortgage Bonds, Series 2000G, 5.875%, 7/01/27    7/10 at 100.00    AA    502,961 
     (Alternative Minimum Tax)             
    Utah Housing Finance Agency, Single Family Mortgage Bonds, Series 2001C:             
1,285     5.500%, 1/01/18 (Alternative Minimum Tax)    1/11 at 100.00    AA–    1,309,145 
475     5.650%, 1/01/21 (Alternative Minimum Tax)    1/11 at 100.00    Aaa    475,418 

12,090    Total Utah            11,910,743 

    Virginia – 1.5% (0.9% of Total Investments)             
8,190    Hampton, Virginia, Revenue Bonds, Convention Center Project, Series 2002, 5.000%, 1/15/35 –    1/13 at 100.00    AA    8,036,601 
     AMBAC Insured             

    Washington – 10.0% (5.9% of Total Investments)             
1,855    Chelan County Public Utility District 1, Washington, Hydro Consolidated System Revenue Bonds,    7/09 at 101.00    AA    1,884,513 
     Series 1999A, 6.200%, 7/01/34 (Alternative Minimum Tax)             
2,500    Energy Northwest, Washington, Electric Revenue Refunding Bonds, Columbia Generating Station –    7/12 at 100.00    Aaa    2,706,975 
     Nuclear Project 2, Series 2002C, 5.750%, 7/01/17 – MBIA Insured             
220    Grant County Public Utility District 2, Washington, Revenue Bonds, Wanapum Hydroelectric    1/15 at 100.00    N/R (4)    240,200 
     Development, Series 2005A, 5.000%, 1/01/34 (Pre-refunded 1/01/15) – FGIC Insured             
5,780    Grant County Public Utility District 2, Washington, Revenue Bonds, Wanapum Hydroelectric    1/15 at 100.00    AA–    5,586,081 
     Development, Series 2005A, 5.000%, 1/01/34 – FGIC Insured             
1,500    Snohomish County School District 6, Mukilteo, Washington, Unlimited Tax General Obligation and    No Opt. Call    Aa3    1,637,850 
     Refunding Bonds, Series 1993, 5.700%, 12/01/12 – FGIC Insured             
8,155    Tacoma, Washington, Electric System Revenue Refunding Bonds, Series 2001A, 5.750%, 1/01/20    1/11 at 101.00    AAA    8,836,350 
     (Pre-refunded 1/01/11) – FSA Insured             
4,705    Tacoma, Washington, Sewerage Revenue Refunding Bonds, Series 1994B, 8.000%, 12/01/08 –    No Opt. Call    Aa3    4,794,348 
     FGIC Insured             
11,000    Washington Public Power Supply System, Revenue Refunding Bonds, Nuclear Project 3, Series    No Opt. Call    Aaa    11,511,280 
     1993B, 7.000%, 7/01/09             
2,000    Washington State Health Care Facilities Authority, Revenue Bonds, Northwest Hospital and    No Opt. Call    N/R    1,813,460 
     Medical Center of Seattle, Series 2007, 5.700%, 12/01/32             
1,000    Washington State Healthcare Facilities Authority, Revenue Bonds, Harrison Memorial Hospital,    8/13 at 102.00    AA    989,990 
     Series 1998, 5.000%, 8/15/28 – AMBAC Insured             
2,000    Washington State Healthcare Facilities Authority, Revenue Bonds, Highline Community Hospital,    8/08 at 102.00    A    2,044,160 
     Series 1998, 5.000%, 8/15/21 – RAAI Insured             
5,500    Washington State Healthcare Facilities Authority, Revenue Bonds, Swedish Health Services,    11/08 at 101.00    Aa3    5,594,325 
     Series 1998, 5.500%, 11/15/14 – AMBAC Insured             
1,460    Washington State Healthcare Facilities Authority, Revenue Bonds, Virginia Mason Medical    8/17 at 100.00    BBB    1,324,819 
     Center, Series 2007B, 5.750%, 8/15/37 – ACA Insured             
4,305    Washington State Tobacco Settlement Authority, Tobacco Settlement Asset-Backed Revenue Bonds,    6/13 at 100.00    BBB    4,327,472 
     Series 2002, 6.500%, 6/01/26             

51,980    Total Washington            53,291,823 

    Wisconsin – 3.0% (1.8% of Total Investments)             
500    Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Medical College of    12/08 at 100.00    AA    502,910 
     Wisconsin Inc., Series 1996, 5.500%, 12/01/26 – MBIA Insured             
7,500    Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Ministry Healthcare    2/12 at 101.00    AA    7,429,800 
     Inc., Series 2002A, 5.250%, 2/15/32 – MBIA Insured             
4,000    Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Wheaton Franciscan    8/16 at 100.00    A–    3,315,360 
     Healthcare System, Series 2006, 5.250%, 8/15/34             
5,000    Wisconsin State, General Obligation Bonds, Series 2006A, 4.750%, 5/01/25 – FGIC Insured    5/16 at 100.00    AA–    4,954,052 

17,000    Total Wisconsin            16,202,122 

$     1,037,537    Total Long-Term Investments (cost $897,709,559) – 168.0%            897,112,424 


    Short-Term Investments – 0.3% (0.2% of Total Investments)             
$           1,473    Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, Western Maryland        A-1+    1,473,000 
     Health, Series 2006A, Variable Rate Demand Obligations, 4.000%, 1/01/14 – MBIA Insured (5)             


    Total Short-Term Investments (cost $1,473,000)            1,473,000 

    Total Investments (cost $899,182,559) – 168.3%            898,585,424 

    Floating Rate Obligations – (15.6)%            (83,443,000)

    Other Assets Less Liabilities – 3.9%            21,055,980 

    Preferred Shares, at Liquidation Value – (56.6)% (7)            (302,200,000)

    Net Assets Applicable to Common Shares – 100%           $  533,998,404 


(1)    All percentages shown in the Portfolio of Investments are based on net assets applicable to Common 
    shares unless otherwise noted. 
(2)    Optional Call Provisions: Dates (month and year) and prices of the earliest optional call or redemption. 
    There may be other call provisions at varying prices at later dates. Certain mortgage-backed securities 
    may be subject to periodic principal paydowns. 
(3)    Ratings: Using the higher of Standard & Poor's Group ("Standard & Poor's") or Moody's Investor Service, 
    Inc. ("Moody's") rating. Ratings below BBB by Standard & Poor's or Baa by Moody's are considered to be 
    below investment grade. 
    The Portfolio of Investments may reflect the ratings on certain bonds insured by ACA, AMBAC, CIFG, 
    FGIC, MBIA, RAAI and XLCA as of July 31, 2008. Subsequent to July 31, 2008, and during the period 
    this Portfolio of Investments was prepared, there may have been reductions to the ratings of certain 
    bonds resulting from changes to the ratings of the underlying insurers both during the period and after 
    period end. Such reductions would likely reduce the effective rating of many of the bonds insured by 
    that insurer or insurers presented at period end. 
(4)    Backed by an escrow or trust containing sufficient U.S. Government or U.S. Government agency 
    securities which ensure the timely payment of principal and interest. Such investments are normally 
    considered to be equivalent to AAA rated securities. 
(5)    Investment has a maturity of more than one year, but has variable rate and demand features which 
    qualify it as a short-term investment. The rate disclosed is that in effect at the end of the reporting 
    period. This rate changes periodically based on market conditions or a specified market index. 
(6)    The issuer has received a formal adverse determination from the Internal Revenue Service (the “IRS”) 
    regarding the tax-exempt status of the bonds’ coupon payments. The Fund will continue to treat coupon 
    payments as tax-exempt income until such time that it is formally determined that the interest on the 
    bonds should be treated as taxable. 
(7)    Preferred Shares, at Liquidation Value as a percentage of total investments is (33.6)%. 
N/R    Not rated. 
(ETM)    Escrowed to maturity. 
(IF)    Inverse floating rate investment. 
(UB)    Underlying bond of an inverse floating rate trust reflected as a financing transaction pursuant to the 
    provisions of SFAS No. 140. 

Income Tax Information

The following information is presented on an income tax basis. Differences between amounts for financial statement and federal income tax purposes are primarily due to timing differences in recognizing taxable market discount, timing differences in recognizing certain gains and losses on investment transactions and the treatment of investments in inverse floating rate transactions subject to SFAS No. 140. To the extent that differences arise that are permanent in nature, such amounts are reclassified within the capital accounts on the Statement of Assets and Liabilities presented in the annual report, based on their federal tax basis treatment; temporary differences do not require reclassification. Temporary and permanent differences do not impact the net asset value of the Fund.

At July 31, 2008, the cost of investments was $815,318,811.

Gross unrealized appreciation and gross unrealized depreciation of investments at July 31, 2008, were as follows:


Gross unrealized:     
 Appreciation    $ 25,264,152 
 Depreciation    (25,427,980)

Net unrealized appreciation (depreciation) of investments    $    (163,828)



Item 2. Controls and Procedures.

  1. 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") (17 CFR 270.30a-3(c))) are effective, as of a date within 90 days of the filing date of this report that includes the disclosure required by this paragraph, based on their evaluation of the controls and procedures required by Rule 30a-3(b) under the 1940 Act (17 CFR 270.30a-3(b)) and Rule 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934 (17 CFR 240.13a-15(b) or 240.15d-15(b)).
  2. There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the registrant's last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting.

Item 3. Exhibits.

File as exhibits as part of this Form a separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the 1940 Act (17 CFR 270.30a-2(a)), exactly as set forth below: See EX-99 CERT attached hereto.


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)         Nuveen Premium Income Municipal Fund 4, Inc.         

By (Signature and Title)          /s/ Kevin J. McCarthy                    
                                                  Kevin J. McCarthy
                                                  Vice President and Secretary

Date         September 29, 2008        

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By (Signature and Title)         /s/ Gifford R. Zimmerman                    
                                                 Gifford R. Zimmerman
                                                 Chief Administrative Officer (principal executive officer) 

Date         September 29, 2008        

By (Signature and Title)         /s/ Stephen D. Foy                              
                                                 Stephen D. Foy
                                                 Vice President and Controller (principal financial officer) 

Date        September 29, 2008