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:         1/31/08         

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)             
    January 31, 2008             
Principal        Optional Call         
Amount (000)    Description (1)    Provisions (2)    Ratings (3)    Value 

    Alabama – 4.3% (2.5% 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–   $   5,383,141 
2,395    Alabama Housing Finance Authority, FNMA Multifamily Housing Revenue Bonds, South Bay    2/11 at 102.00    AAA    2,455,737 
     Apartments, Series 2000K, 5.950%, 2/01/33 (Alternative Minimum Tax)             
11,895    Alabama Special Care Facilities Financing Authority, Birmingham, Hospital Revenue Bonds,    5/08 at 100.00    Aaa    11,911,534 
     Daughters of Charity National Health System – Providence Hospital and St. Vincent’s Hospital,             
     Series 1995, 5.000%, 11/01/25 (ETM)             
4,000    Alabama Special Care Facilities Financing Authority, Revenue Bonds, Ascension Health, Series    11/16 at 100.00    AA    4,036,800 
     2006C-2, 5.000%, 11/15/39             
1,000    Birmingham Special Care Facilities Financing Authority, Alabama, Revenue Bonds, Baptist Health    11/15 at 100.00    Baa1    911,820 
     System Inc., Series 2005A, 5.000%, 11/15/30             

24,440    Total Alabama            24,699,032 

    Alaska – 0.9% (0.5% of Total Investments)             
1,665    Alaska Housing Finance Corporation, General Housing Purpose Bonds, Series 2005A, 5.000%,    12/14 at 100.00    Aaa    1,683,615 
     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    AAA    3,478,254 
     (Pre-refunded 12/01/13) – MBIA Insured             

4,730    Total Alaska            5,161,869 

    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    Aaa    5,086,350 
     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    AAA    4,358,997 
     Revenue Bonds, Series 2003, 5.000%, 12/01/18 – MBIA Insured             
2,000    Salt Verde Financial Corporation, Arizona, Senior Gas Revenue Bonds, Series 2007, 5.000%,    No Opt. Call    AA-    1,841,720 
     12/01/37             

11,100    Total Arizona            11,287,067 

    Arkansas – 0.0% (0.0% of Total Investments)             
45    Lonoke County Residential Housing Facilities Board, Arkansas, FNMA Mortgage-Backed Securities    4/08 at 100.00    Aaa    45,575 
     Program Single Family Mortgage Revenue Refunding Bonds, Series 1993A, 7.900%, 4/01/11             

    California – 18.0% (10.7% of Total Investments)             
3,335    Anaheim Public Finance Authority, California, Public Improvement Project Lease Revenue Bonds,    9/17 at 100.00    A    2,220,410 
     UBS Residual Series 07 1011-1013, 4.790%, 3/01/37 – FGIC Insured (IF)             
17,000    California Health Facilities Financing Authority, Health Facility Revenue Bonds, Adventist    3/13 at 100.00    A    16,607,300 
     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+    4,931,650 
     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–    2,859,748 
     5.000%, 11/15/42             
11,000    California Infrastructure Economic Development Bank, First Lien Revenue Bonds, San Francisco    1/28 at 100.00    AAA    12,218,800 
     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+    2,055,220 
     LLC, Series 2001A, 5.550%, 8/01/31             
19,545    California, General Obligation Bonds, Series 2005, 5.000%, 6/01/33 – CIFG Insured (UB)    6/15 at 100.00    AAA    20,007,435 
12,000    California, General Obligation Bonds, Series 2003, 5.250%, 2/01/22    8/13 at 100.00    A+    12,670,320 
4,780    Foothill/Eastern Transportation Corridor Agency, California, Toll Road Revenue Bonds, Series    No Opt. Call    AAA    3,982,266 
     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    528,461 
1,000     5.750%, 6/01/47    6/17 at 100.00    BBB    958,680 
1,000    Golden State Tobacco Securitization Corporation, California, Tobacco Settlement Asset-Backed    6/13 at 100.00    AAA    1,185,120 
     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    1,256,637 
     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    10,706,951 
     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:             
31,300     0.000%, 1/15/34 – MBIA Insured (UB)    No Opt. Call    AAA    7,223,102 
4,430     0.000%, 1/15/32 – MBIA Insured (UB)    No Opt. Call    AAA    1,147,237 
1,945    South Gate Public Financing Authority, California, Water Revenue Refunding Bonds, Series    No Opt. Call    Aaa    2,142,359 
     1996A, 6.000%, 10/01/12 – FGIC Insured             

132,345    Total California            102,701,696 

    Colorado – 5.7% (3.4% of Total Investments)             
6,500    Adams 12 Five Star Schools, Adams County, Colorado, General Obligation Bonds, Series 2005,    12/15 at 100.00    AAA    6,788,210 
     4.750%, 12/15/23 – FSA Insured             
2,000    Colorado Health Facilities Authority, Revenue Refunding Bonds, Catholic Health Initiatives,    9/11 at 100.00    AA (4)    2,182,460 
     Series 2001, 5.250%, 9/01/21 (Pre-refunded 9/01/11)             
480    Colorado Housing Finance Authority, Single Family Program Senior Bonds, Series 1999C-3,    10/09 at 105.00    Aa2    524,237 
     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+    3,043,895 
     (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    Aaa    3,293,653 
10,000     5.000%, 12/01/33 (Pre-refunded 12/01/13) – XLCA Insured    12/13 at 100.00    Aaa    11,202,900 
4,345    El Paso County School District 20, Academy, Colorado, General Obligation Bonds, Series 2002,    12/12 at 100.00    Aaa    4,762,424 
     5.250%, 12/15/17 – FGIC Insured             
755    Jefferson County School District R1, Colorado, General Obligation Bonds, Series 2004, 5.000%,    12/14 at 100.00    AAA    810,968 
     12/15/22 – FSA Insured             

29,715    Total Colorado            32,608,747 

    District of Columbia – 2.2% (1.3% of Total Investments)             
5    District of Columbia, General Obligation Bonds, Series 1993E, 6.000%, 6/01/09 – CAPMAC Insured    6/08 at 100.00    AAA    5,015 
4,250    District of Columbia, Hospital Revenue Refunding Bonds, Medlantic Healthcare Group, Series    2/08 at 101.00    AAA    4,303,508 
     1993A, 5.750%, 8/15/14 – MBIA Insured (ETM)             
    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    AAA    3,744,804 
15,235     0.000%, 4/01/30 (Pre-refunded 4/01/11) – MBIA Insured    4/11 at 32.93    AAA    4,609,654 

29,160    Total District of Columbia            12,662,981 

    Florida – 6.2% (3.6% of Total Investments)             
5,000    Broward County School Board, Florida, Certificates of Participation, Series 2003, 5.000%,    7/13 at 100.00    AAA    5,024,500 
     7/01/28 – MBIA Insured             
5,000    Hillsborough County Aviation Authority, Florida, Revenue Bonds, Tampa International Airport,    10/13 at 100.00    AAA    5,397,150 
     Series 2003A, 5.250%, 10/01/18 – MBIA Insured (Alternative Minimum Tax)             
5,000    Martin County Industrial Development Authority, Florida, Industrial Development Revenue Bonds,    6/08 at 100.00    BB+    5,027,600 
     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    1,433,309 
     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    AAA    3,248,381 
     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–    5,379,776 
     Obligation Group, Series 2007, 5.000%, 8/15/42             
9,500    Sunrise, Florida, Utility System Revenue Refunding Bonds, Series 1998, 5.000%, 10/01/28 –    10/18 at 100.00    AAA    9,869,740 
     AMBAC Insured             

34,720    Total Florida            35,380,456 

    Georgia – 2.6% (1.5% of Total Investments)             
4,400    Atlanta, Georgia, Water and Wastewater Revenue Bonds, Series 1999A, 5.500%, 11/01/22 –    No Opt. Call    Aaa    4,962,232 
     FGIC Insured             
2,880    Georgia Municipal Electric Authority, General Power Revenue Bonds, Series 1992B,    No Opt. Call    A+    3,329,280 
     8.250%, 1/01/11             
5,500    Georgia Municipal Electric Authority, General Power Revenue Bonds, Series 1993B, 5.700%,    No Opt. Call    AAA    6,435,055 
     1/01/19 – FGIC Insured (ETM)             

12,780    Total Georgia            14,726,567 

    Hawaii – 1.0% (0.6% of Total Investments)             
3,720    Honolulu City and County, Hawaii, General Obligation Refunding and Improvement Bonds, Series    No Opt. Call    AA    4,124,364 
     1993B, 5.000%, 10/01/13             
1,580    Honolulu City and County, Hawaii, General Obligation Refunding and Improvement Bonds, Series    No Opt. Call    Aaa    1,768,826 
     1993B, 5.000%, 10/01/13 (ETM)             

5,300    Total Hawaii            5,893,190 

    Idaho – 0.1% (0.1% of Total Investments)             
750    Madison County, Idaho, Hospital Revenue Certificates of Participation, Madison Memorial    9/16 at 100.00    BBB–    664,515 
     Hospital, Series 2006, 5.250%, 9/01/37             

    Illinois – 18.4% (10.8% of Total Investments)             
4,000    Chicago Board of Education, Illinois, General Obligation Lease Certificates, Series 1992A,    No Opt. Call    AAA    4,573,240 
     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    19,417,910 
     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    5,609,552 
     (Alternative Minimum Tax)             
5,000    Chicago, Illinois, Sales Tax Revenue Bonds, Series 1998, 5.250%, 1/01/28 – FGIC Insured    7/08 at 102.00    AAA    5,128,450 
1,665    Chicago, Illinois, Third Lien General Airport Revenue Bonds, O’Hare International Airport,    1/16 at 100.00    Aaa    1,663,751 
     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    Aaa    1,875,553 
1,685     8.500%, 12/01/15 – FGIC Insured    No Opt. Call    Aaa    2,300,733 
6,050    Illinois Development Finance Authority, GNMA Collateralized Mortgage Revenue Bonds, Greek    4/11 at 105.00    Aaa    6,820,952 
     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    Aaa    1,467,698 
     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)    2,862,774 
     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–    5,481,135 
     5.500%, 8/01/37             
4,000    Illinois Health Facilities Authority, FHA-Insured Mortgage Revenue Refunding Bonds, Sinai    8/13 at 100.00    AAA    4,038,080 
     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    Baa2    4,000,400 
     5.500%, 5/15/32             
    Illinois Health Facilities Authority, Revenue Refunding Bonds, Lutheran General Health System,             
    Series 1993C:             
1,570     7.000%, 4/01/08    No Opt. Call    A+    1,580,409 
4,075     7.000%, 4/01/14    No Opt. Call    A+    4,777,775 
9,795    Lake, Cook, Kane and McHenry Counties Community Unit School District 220, Barrington,    No Opt. Call    AAA    11,286,485 
     Illinois, School Refunding Bonds, Series 2002, 5.250%, 12/01/19 – FSA Insured             
    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    6,725,050 
4,540     5.000%, 12/15/28 – MBIA Insured    6/12 at 101.00    AAA    4,648,097 
36,040     0.000%, 6/15/40 – MBIA Insured    No Opt. Call    AAA    7,081,500 
3,050    Regional Transportation Authority, Cook, DuPage, Kane, Lake, McHenry and Will Counties,    No Opt. Call    AAA    3,813,629 
     Illinois, General Obligation Bonds, Series 1990A, 7.200%, 11/01/20 – AMBAC Insured             

128,440    Total Illinois            105,153,173 

    Indiana – 9.1% (5.3% of Total Investments)             
    Carmel Redevelopment Authority, Indiana, Lease Rent Revenue Bonds, Series 2005:             
1,950     0.000%, 2/01/24    No Opt. Call    AA    903,006 
2,705     0.000%, 2/01/25    No Opt. Call    AA    1,181,950 
3,000    Hospital Authority of Delaware County, Indiana, Hospital Revenue Bonds, Cardinal Health    8/16 at 100.00    Baa2    2,648,220 
     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    AAA    4,144,139 
     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    1,579,650 
     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    AAA    23,983,297 
     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    3,492,660 
     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    AAA    2,781,240 
     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    4,233,520 
     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    6,674,640 
     (Pre-refunded 6/01/13) – FSA Insured             
420    Marion County Convention and Recreational Facilities Authority, Indiana, Excise Tax Lease    6/09 at 100.00    AAA    422,365 
     Rental Revenue Bonds, Series 1997A, 5.000%, 6/01/27 – MBIA Insured             

51,340    Total Indiana            52,044,687 

    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–    971,590 
     5.000%, 7/01/20             

    Kansas – 1.9% (1.1% of Total Investments)             
2,000    Olathe, Kansas, Health Facilities Revenue Bonds, Olathe Medical Center, Series 2000A, 5.500%,    9/10 at 100.00    AAA    2,083,840 
     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    6,854,211 
     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    AAA    1,805,755 
     5.300%, 6/01/31 – MBIA Insured             

10,575    Total Kansas            10,743,806 

    Louisiana – 5.8% (3.4% of Total Investments)             
1,750    Louisiana Local Government Environmental Facilities and Community Development Authority, GNMA    6/12 at 105.00    Aaa    1,903,930 
     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+    5,200,934 
     Lady Health System, Series 2005A, 5.250%, 8/15/32             
3,280    Louisiana Public Facilities Authority, Revenue Bonds, Archdiocese of New Orleans, Series 2007,    7/17 at 100.00    A+    2,247,000 
     Drivers 1754, 8.789%, 7/01/37 – CIFG Insured (IF)             
3,800    Louisiana Public Facilities Authority, Revenue Bonds, Ochsner Clinic Foundation Project,    5/17 at 100.00    A3    3,829,336 
     Series 2007A, 5.500%, 5/15/47             
170    Louisiana State, Gasoline Tax Revenue Bonds, Series 2006, Residuals 660-1, 6.542%, 5/01/41 –    5/16 at 100.00    AA–    133,902 
     FGIC Insured (IF)             
    Louisiana State, Gasoline and Fuels Tax Revenue Bonds, Series 2006:             
1,480     4.750%, 5/01/39 – FSA Insured (UB)    5/16 at 100.00    AAA    1,481,406 
15,820     4.500%, 5/01/41 – FGIC Insured (UB)    5/16 at 100.00    AAA    14,700,260 
3,795    Orleans Levee District, Louisiana, Levee District General Obligation Bonds, Series 1986,    6/08 at 100.50    AAA    3,840,995 
     5.950%, 11/01/14 – FSA Insured             

35,245    Total Louisiana            33,337,763 

    Maryland – 2.0% (1.2% of Total Investments)             
2,160    Maryland Community Development Administration, Housing Revenue Bonds, Series 1996A,    7/08 at 101.00    Aa2    2,184,278 
     5.875%, 7/01/16             
2,900    Maryland Community Development Administration, Housing Revenue Bonds, Series 1997A, 6.000%,    7/08 at 101.00    Aa2    2,930,943 
     7/01/39 (Alternative Minimum Tax)             
50    Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, MedStar Health,    8/14 at 100.00    A3    51,132 
     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    AAA    2,131,457 
     Health, Series 2006A, 4.750%, 7/01/36 – MBIA Insured (UB)             
1,935    Montgomery County Housing Opportunities Commission, Maryland, GNMA/FHA-Insured Multifamily    7/08 at 100.00    Aa2    1,981,517 
     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    2,379,565 
     Bonds, Series 2000B, 6.125%, 7/01/20 (Alternative Minimum Tax)             

11,570    Total Maryland            11,658,892 

    Massachusetts – 1.1% (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    3,202,158 
     3/01/35 – ACA Insured             
1,000    Massachusetts Development Finance Agency, Revenue Bonds, Orchard Cove, Series 2007,    10/12 at 102.00    BBB–    936,080 
     5.250%, 10/01/26             
1,000    Massachusetts Health and Educational Facilities Authority, Revenue Bonds, Milton Hospital    7/15 at 100.00    BBB–    945,220 
     Project, Series 2005D, 5.375%, 7/01/35             
1,155    Massachusetts Water Resources Authority, General Revenue Bonds, Series 2007, Residual Trust    2/17 at 100.00    AAA    1,072,602 
     7039, 8.712%, 8/01/46 – FSA Insured (IF)             

6,740    Total Massachusetts            6,156,060 

    Michigan – 7.5% (4.4% of Total Investments)             
6,000    Detroit, Michigan, Second Lien Sewerage Disposal System Revenue Bonds, Series 2005A, 5.000%,    7/15 at 100.00    AAA    5,995,320 
     7/01/35 – MBIA Insured             
8,915    Detroit, Michigan, Senior Lien Water Supply System Revenue Bonds, Series 1997A, 5.000%,    7/08 at 100.00    AAA    8,956,811 
     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    Aaa    5,093,334 
     7/01/34 – FGIC Insured             
4,290    Hancock Hospital Finance Authority, Michigan, FHA-Insured Mortgage Hospital Revenue Bonds,    8/08 at 100.00    AAA    4,351,175 
     Portage Health System Inc., Series 1998, 5.450%, 8/01/47 (Pre-refunded 8/01/08) – MBIA Insured             
5,000    Michigan State Building Authority, Revenue Refunding Bonds, Facilities Program, Series 2003II,    10/13 at 100.00    AAA    5,114,150 
     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    9,923,865 
     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    936,740 
     2005, 5.000%, 5/15/30             
2,500    Michigan State Hospital Finance Authority, Revenue Bonds, Trinity Health Care Group, Series    12/16 at 100.00    AA    2,513,125 
     2006A, 5.000%, 12/01/31             

43,605    Total Michigan            42,884,520 

    Minnesota – 1.2% (0.7% of Total Investments)             
700    Minneapolis-St. Paul Housing Finance Board, Minnesota, FNMA/GNMA Mortgage-Backed Securities    5/08 at 102.00    AAA    701,666 
     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    3,776,745 
     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    2,416,208 
     Project, Series 2007-1, 5.000%, 8/01/36             

7,075    Total Minnesota            6,894,619 

    Mississippi – 1.6% (0.9% of Total Investments)             
2,975    Mississippi Hospital Equipment and Facilities Authority, Revenue Bonds, Baptist Memorial    9/14 at 100.00    N/R    3,014,002 
     Healthcare, Series 2004B-1, 5.000%, 9/01/24             
5,180    Mississippi, General Obligation Refunding Bonds, Series 2002A, 5.500%, 12/01/18    No Opt. Call    AA    6,069,872 

8,155    Total Mississippi            9,083,874 

    Missouri – 0.8% (0.4% of Total Investments)             
1,450    Cape Girardeau County Industrial Development Authority, Missouri, Health Facilities Revenue    6/17 at 100.00    N/R    1,290,384 
     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    3,068,040 
     2003, 5.125%, 5/15/24             

4,450    Total Missouri            4,358,424 

    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    Aaa    9,672,030 
     6.250%, 6/01/18 – MBIA Insured (Alternative Minimum Tax)             

    Nevada – 4.5% (2.6% of Total Investments)             
10,420    Clark County School District, Nevada, General Obligation Bonds, Series 2002C, 5.500%, 6/15/18    6/12 at 100.00    AAA    11,645,809 
     (Pre-refunded 6/15/12) – MBIA Insured             
4,500    Clark County School District, Nevada, General Obligation School Improvement Bonds, Series    No Opt. Call    AAA    4,965,930 
     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    AAA    7,281,960 
     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    AAA    1,861,209 
     Monorail Project, First Tier, Series 2000, 0.000%, 1/01/25 – AMBAC Insured             

27,345    Total Nevada            25,754,908 

    New Jersey – 4.9% (2.9% of Total Investments)             
500    Burlington County Bridge Commission, New Jersey, Economic Development Revenue Bonds, The    1/18 at 100.00    N/R    468,465 
     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)    1,239,502 
     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    AAA    1,029,424 
    New Jersey Turnpike Authority, Revenue Bonds, Series 1991C:             
300     6.500%, 1/01/16 – MBIA Insured (ETM)    No Opt. Call    AAA    355,146 
2,345     6.500%, 1/01/16 – MBIA Insured (ETM)    No Opt. Call    AAA    2,776,058 
11,960    Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds,    6/12 at 100.00    AAA    13,157,914 
     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    4,791,283 
     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    4,221,150 
     Series 2007-1A, 4.750%, 6/01/34             

26,080    Total New Jersey            28,038,942 

    New York – 8.2% (4.8% of Total Investments)             
855    Albany Industrial Development Agency, New York, Revenue Bonds, Brighter Choice Charter    4/17 at 100.00    N/R    753,999 
     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    1,203,816 
     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    AAA    3,886,524 
     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    AAA    3,047,187 
     4.250%, 5/01/33 – MBIA Insured (UB)             
6,740    New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Fiscal    5/08 at 101.00    AAA    6,830,451 
     Series 1998C, 5.000%, 5/01/26             
35    New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Fiscal    5/08 at 101.00    AAA    35,609 
     Series 1998C, 5.000%, 5/01/26 (Pre-refunded 5/01/08)             
    New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Fiscal             
    Series 2000C:             
220     5.875%, 11/01/16 (Pre-refunded 5/01/10)    5/10 at 101.00    AAA    239,408 
3,630     5.875%, 11/01/16 (Pre-refunded 5/01/10)    5/10 at 101.00    AAA    3,951,074 
5,000     5.500%, 11/01/24 (Pre-refunded 5/01/10)    5/10 at 101.00    AAA    5,400,200 
    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–    11,310,300 
2,500     5.500%, 6/01/18    6/12 at 100.00    AA–    2,688,350 
6,250    Port Authority of New York and New Jersey, Special Project Bonds, JFK International Air    No Opt. Call    AAA    7,317,875 
     Terminal LLC, Sixth Series 1997, 6.250%, 12/01/15 – MBIA Insured (Alternative Minimum Tax)             

44,600    Total New York            46,664,793 

    North Carolina – 2.8% (1.7% of Total Investments)             
750    Charlotte-Mecklenburg Hospital Authority, North Carolina, Health Care System Revenue Bonds,    1/17 at 100.00    AA–    751,320 
     Carolinas Health Care, 5.000%, 1/15/31             
2,445    North Carolina Infrastructure Finance Corporation, Certificates of Participation, Correctional    2/14 at 100.00    AA+    2,578,815 
     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    AAA    2,197,160 
     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    AAA    10,725,500 
     1/01/18 – MBIA Insured             

15,195    Total North Carolina            16,252,795 

    Ohio – 3.2% (1.9% of Total Investments)             
6,065    Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue    6/17 at 100.00    BBB    5,869,040 
     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    8,135,407 
3,000    Franklin County, Ohio, Development Revenue Bonds, American Chemical Society, Series 1999,    10/09 at 101.00    A+    3,126,000 
     5.800%, 10/01/14             
1,000    Franklin County, Ohio, FHA-Insured Multifamily Housing Mortgage Revenue Bonds, Hamilton Creek    7/08 at 100.00    Aa2    1,000,260 
     Apartments Project, Series 1994A, 5.550%, 7/01/24 (Alternative Minimum Tax)             

18,130    Total Ohio            18,130,707 

    Oklahoma – 3.0% (1.8% of Total Investments)             
    Oklahoma Development Finance Authority, Revenue Bonds, Saint John Health System, Series 2007:             
6,800     5.000%, 2/15/37    2/17 at 100.00    AA–    6,743,220 
2,655     5.000%, 2/15/42    2/17 at 100.00    AA–    2,618,600 
295    Oklahoma Housing Finance Agency, Single Family Mortgage Revenue Bonds, Homeownership Loan    3/10 at 101.00    Aaa    304,183 
     Program, Series 2000C-2, 6.200%, 9/01/28 (Alternative Minimum Tax)             
4,185    Tulsa County Industrial Authority, Oklahoma, Health Care Revenue Bonds, Saint Francis Health    12/16 at 100.00    AA    4,181,568 
     System, Series 2006, 5.000%, 12/15/36             
3,340    Tulsa Industrial Authority, Oklahoma, Hospital Revenue Refunding Bonds, Hillcrest Medical    No Opt. Call    AAA    3,530,213 
     Center, Series 1996, 6.500%, 6/01/09 – CONNIE LEE/AMBA Insured (ETM)             

17,275    Total Oklahoma            17,377,784 

    Pennsylvania – 1.8% (1.1% of Total Investments)             
500    Bucks County Industrial Development Authority, Pennsylvania, Charter School Revenue Bonds,    3/17 at 100.00    BBB    440,550 
     School Lane Charter School, Series 2007A, 5.000%, 3/15/37             
1,800    Pennsylvania Economic Development Financing Authority, Senior Lien Resource Recovery Revenue    7/08 at 100.00    B+    1,800,612 
     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    5,477,648 
     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    AAA    2,749,136 
     AMBAC Insured             

10,390    Total Pennsylvania            10,467,946 

    Puerto Rico – 2.5% (1.5% of Total Investments)             
12,390    Puerto Rico, General Obligation and Public Improvement Refunding Bonds, Series 1997, 6.500%,    No Opt. Call    AAA    14,251,969 
     7/01/13 – MBIA Insured             

    Rhode Island – 3.5% (2.1% of Total Investments)             
20,000    Rhode Island Tobacco Settlement Financing Corporation, Tobacco Settlement Asset-Backed Bonds,    6/12 at 100.00    BBB    20,039,200 
     Series 2002A, 6.250%, 6/01/42             

    South Carolina – 4.3% (2.5% of Total Investments)             
4,120    Medical University Hospital Authority, South Carolina, FHA-Insured Mortgage Revenue Bonds,    8/14 at 100.00    AAA    4,330,202 
     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    Aaa    2,988,540 
     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    Aaa    6,055,450 
5,750     4.000%, 1/01/23 – MBIA Insured    7/08 at 100.00    AAA    5,613,955 
5,085    Piedmont Municipal Power Agency, South Carolina, Electric Revenue Refunding Bonds, Series    No Opt. Call    AAA    5,565,787 
     1998A, 5.500%, 1/01/13 – MBIA Insured             

22,955    Total South Carolina            24,553,934 

    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–    1,824,900 
     Hospitals, Series 2004A, 5.500%, 11/01/31             

    Tennessee – 0.9% (0.5% of Total Investments)             
5,075    Knox County Health, Educational and Housing Facilities Board, Tennessee, Hospital Revenue    1/17 at 30.07    A–    808,245 
     Refunding Bonds, Covenant Health, Series 2006, 0.000%, 1/01/41             
1,500    Metropolitan Government of Nashville-Davidson County, Tennessee, Electric System Revenue    5/08 at 102.00    AA    1,537,455 
     Bonds, Series 1998A, 5.200%, 5/15/23             
680    Sullivan County Health Educational and Housing Facilities Board, Tennessee, Revenue Bonds,    9/16 at 100.00    BBB+    648,557 
     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    840,831 
1,500     5.500%, 11/01/46    11/17 at 100.00    N/R    1,435,395 

9,615    Total Tennessee            5,270,483 

    Texas – 19.0% (11.2% of Total Investments)             
3,000    Alliance Airport Authority, Texas, Special Facilities Revenue Bonds, American Airlines Inc.,    12/12 at 100.00    CCC+    2,297,130 
     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    5,148,145 
     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    Aaa    3,996,880 
     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    3,433,341 
     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    2,265,210 
     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    Aaa    8,407,440 
     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    6,279,000 
     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    AAA    7,018,690 
     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    AAA    9,566,807 
     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    9,039,075 
     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    5,911,287 
     Bonds, Series 2006, 0.000%, 8/15/39             
98    Midland Housing Finance Corporation, Texas, Single Family Mortgage Revenue Refunding Bonds,    5/08 at 101.00    Aaa    101,050 
     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    778,786 
760     5.500%, 2/15/23    2/11 at 100.00    AAA    803,221 
    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    1,710,107 
1,640     5.500%, 2/15/23 (Pre-refunded 2/15/11)    2/11 at 100.00    Aaa    1,786,354 
    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    3,097,267 
2,300     5.125%, 2/15/31    8/11 at 100.00    Aaa    2,347,173 
700    Mt. Pleasant Independent School District, Titus County, Texas, General Obligation Refunding    8/11 at 100.00    Aaa    762,475 
     Bonds, Series 2001, 5.125%, 2/15/31 (Pre-refunded 8/15/11)             
6,000    Raven Hills Higher Education Corporation, Texas, Student Housing Revenue Bonds, Angelo State    8/12 at 100.00    Aaa    6,597,900 
     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    4,143,252 
     Racetrack, Series 1993, 8.750%, 12/15/18 (Pre-refunded 12/15/12) (5)             
1,800    Sam Rayburn Municipal Power Agency, Texas, Power Supply System Revenue Refunding Bonds, Series    10/12 at 100.00    AA    1,906,452 
     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    5,064,062 
     Refunding Bonds, Series 2001, 5.125%, 2/01/26 (Pre-refunded 2/01/11)             
3,200    Tarrant County Cultural & Educational Facilities Financing Corporation, Texas, Revenue Bonds,    2/17 at 100.00    AA–    3,164,224 
     Series 2007A, 5.000%, 2/15/36             
800    Texas, General Obligation Bonds, Transportation Commission Mobility Fund, Series 2007,    4/17 at 100.00    AA    773,136 
     Residuals 1872-1, 8.694%, 4/01/33 (IF)             
3,000    Texas, General Obligation Bonds, Transportation Commission Mobility Fund, Series 2007,    4/17 at 100.00    AA    2,899,260 
     Residuals 1872-2, 8.694%, 4/01/33 (IF)             
8,500    Travis County Health Facilities Development Corporation, Texas, Hospital Revenue Bonds,    5/08 at 100.00    Aaa    9,244,855 
     Daughters of Charity National Health System, Series 1993B, 6.000%, 11/15/22 (ETM)             

150,578    Total Texas            108,542,579 

    Utah – 2.1% (1.2% of Total Investments)             
4,845    Bountiful, Davis County, Utah, Hospital Revenue Refunding Bonds, South Davis Community    12/08 at 101.00    N/R    4,586,083 
     Hospital Project, Series 1998, 5.750%, 12/15/18             
4,995    Intermountain Power Agency, Utah, Power Supply Revenue Bonds, Series 1996A, 6.150%,    7/08 at 100.00    Aa3 (4)    5,004,990 
     7/01/14 (ETM)             
500    Utah Housing Finance Agency, Single Family Mortgage Bonds, Series 2000G, 5.875%, 7/01/27    7/10 at 100.00    AA    512,840 
     (Alternative Minimum Tax)             
    Utah Housing Finance Agency, Single Family Mortgage Bonds, Series 2001C:             
1,400     5.500%, 1/01/18 (Alternative Minimum Tax)    1/11 at 100.00    AA–    1,444,730 
490     5.650%, 1/01/21 (Alternative Minimum Tax)    1/11 at 100.00    Aaa    498,350 

12,230    Total Utah            12,046,993 

    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    AAA    8,291,884 
     AMBAC Insured             

    Washington – 10.5% (6.1% of Total Investments)             
1,855    Chelan County Public Utility District 1, Washington, Hydro Consolidated System Revenue Bonds,    7/09 at 101.00    AA    1,923,561 
     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    2,779,600 
     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    Aaa    247,075 
     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    AAA    5,882,884 
     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    Aaa    1,691,250 
     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    8,989,909 
     (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    Aaa    4,927,876 
     FGIC Insured             
11,000    Washington Public Power Supply System, Revenue Refunding Bonds, Nuclear Project 3, Series    No Opt. Call    Aaa    11,718,630 
     1993B, 7.000%, 7/01/09             
4,700    Washington Public Power Supply System, Revenue Refunding Bonds, Nuclear Project 3, Series    7/08 at 102.00    Aaa    4,829,814 
     1998A, 5.125%, 7/01/18             
2,000    Washington State Health Care Facilities Authority, Revenue Bonds, Northwest Hospital and    No Opt. Call    N/R    1,970,560 
     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    AAA    1,007,160 
     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    AA    2,021,320 
     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    Aaa    5,659,445 
     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    1,452,758 
     Center, Series 2007B, 5.750%, 8/15/37 – ACA Insured             
4,485    Washington State Tobacco Settlement Authority, Tobacco Settlement Asset-Backed Revenue Bonds,    6/13 at 100.00    BBB    4,623,676 
     Series 2002, 6.500%, 6/01/26             

56,860    Total Washington            59,725,518 

    Wisconsin – 3.0% (1.7% of Total Investments)             
500    Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Medical College of    12/08 at 100.00    AAA    505,665 
     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    AAA    7,617,450 
     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–    3,711,400 
     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    Aaa    5,138,850 

17,000    Total Wisconsin            16,973,365 

$    1,072,863    Total Investments (cost $938,855,480) – 170.3%            972,999,833 


    Floating Rate Obligations – (12.4)%            (71,018,610) 

    Other Assets Less Liabilities – 1.3%            7,616,431 

    Preferred Shares, at Liquidation Value – (59.2)% (6)            (338,400,000) 

    Net Assets Applicable to Common Shares – 100%          $  571,197,654 



    The Fund may invest in “zero coupon” securities. A zero coupon security does not pay a regular interest 
    coupon to its holders during the life of the security. Tax-exempt income to the holder of the security 
    comes from accretion of the difference between the original purchase price of the security at issuance 
    and the par value of the security at maturity and is effectively paid at maturity. Such securities are 
    included in the Portfolio of Investments with a 0.000% coupon rate in their description. The market 
    prices of zero coupon securities generally are more volatile than the market prices of securities that 
    pay interest periodically. 
(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 AAA ratings shown in the Portfolio of Investments reflect the AAA ratings on certain bonds that may be 
    insured by AMBAC, FGIC, XLCA or MBIA as of January 31, 2008. Subsequent to January 31, 2008, at least 
    one rating agency reduced the rating for AMBAC-insured bonds to AA and XLCA-insured and FGIC-insured 
    bonds experienced further downgrades such that they no longer carry AAA ratings which had the effect of 
    reducing the rating of many (if not all) of the bonds insured by those particular insurers. One or more 
    rating agencies have placed each of these insurers on “negative credit watch”, which may presage one or 
    more rating reductions for such insurer or insurers in the future. If one or more insurers’ ratings are 
    reduced below AAA by these rating agencies, it would likely reduce the effective rating of many of the 
    bonds insured by that insurer or insurers. 
(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)    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. 
(6)    FundPreferred Shares, at Liquidation Value as a percentage of total investments is (34.8)%. 
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 the treatment of paydown gains and losses, 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 January 31, 2008, the cost of investments was $867,480,269.

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


Gross unrealized:     
  Appreciation    $ 46,547,506 
  Depreciation    (12,006,506) 

Net unrealized appreciation (depreciation) of investments    $ 34,541,000 



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: 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         March 31, 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         March 31, 2008        

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

Date        March 31, 2008        

* Print the name and title of each signing officer under his or her signature.