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)


        333 West Wacker Drive, Chicago, Illinois 60606         

(Address of principal executive offices) (Zip code)


Jessica R. Droeger—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:          1/31/06         

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, 2006

Principal        Optional Call         
Amount (000)    Description (1)    Provisions (2)    Ratings (3)    Value 

    Alabama – 3.4% (2.2% 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–   $   5,482,330 
2,395    Alabama Housing Finance Authority, FNMA Multifamily Housing Revenue Bonds, South Bay    2/11 at 102.00    AAA    2,504,835 
     Apartments, Series 2000K, 5.950%, 2/01/33 (Alternative Minimum Tax)             
11,895    Alabama Special Care Facilities Financing Authority, Birmingham, Hospital Revenue Bonds,    5/06 at 101.00    Aaa    12,025,012 
     Daughters of Charity National Health System – Providence Hospital and St. Vincent’s Hospital,             
     Series 1995, 5.000%, 11/01/25 (ETM)             

19,440    Total Alabama            20,012,177 

    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    1,720,728 
     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    3,286,630 
     – MBIA Insured             

4,730    Total Alaska            5,007,358 

    Arizona – 1.6% (1.0% of Total Investments)             
5,000    Arizona Tourism and Sports Authority, Tax Revenue Bonds, Multipurpose Stadium Facility    7/13 at 100.00    Aaa    5,183,100 
     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    4,340,629 
     Revenue Bonds, Series 2003, 5.000%, 12/01/18 – MBIA Insured             

9,100    Total Arizona            9,523,729 

    Arkansas – 0.0% (0.0% of Total Investments)             
45    Arkansas Development Finance Authority, FHA-Insured or VA Guaranteed Single Family Mortgage    2/06 at 100.00    AA+    45,120 
     Revenue Refunding Bonds, Series 1991A, 8.000%, 8/15/11             
51    Jacksonville Residential Housing Facilities Board, Arkansas, FNMA Mortgage-Backed Securities    7/06 at 100.00    Aaa    51,383 
     Program Single Family Mortgage Revenue Refunding Bonds, Series 1993A-2, 7.900%, 1/01/11             
107    Lonoke County Residential Housing Facilities Board, Arkansas, FNMA Mortgage-Backed Securities    4/06 at 102.00    Aaa    109,308 
     Program Single Family Mortgage Revenue Refunding Bonds, Series 1993A, 7.900%, 4/01/11             

203    Total Arkansas            205,811 

    California – 8.5% (5.4% of Total Investments)             
1,800    California Department of Water Resources, Power Supply Revenue Bonds, Series 2002A, 5.500%,    5/12 at 101.00    AAA    1,996,182 
     5/01/14 – AMBAC Insured             
17,000    California Health Facilities Financing Authority, Health Facility Revenue Bonds, Adventist    3/13 at 100.00    A    17,165,920 
     Health System/West, Series 2003A, 5.000%, 3/01/33             
2,000    California Infrastructure Economic Development Bank, Revenue Bonds, Kaiser Hospital Assistance    8/11 at 102.00    A+    2,108,480 
     LLC, Series 2001A, 5.550%, 8/01/31             
12,000    California, General Obligation Bonds, Series 2003, 5.250%, 2/01/22    8/13 at 100.00    A    12,927,480 
4,500    California, General Obligation Bonds, Series 2004, 5.100%, 2/01/34    2/09 at 100.00    A    4,566,285 
4,780    Foothill/Eastern Transportation Corridor Agency, California, Toll Road Revenue Bonds, Series    No Opt. Call    AAA    3,496,188 
     1995A, 0.000%, 1/01/14 (ETM)             
1,000    Golden State Tobacco Securitization Corporation, California, Tobacco Settlement Asset-Backed    6/13 at 100.00    BBB    1,126,170 
     Bonds, Series 2003A-1, 6.750%, 6/01/39             
3,000    Los Angeles Department of Water and Power, California, Power System Revenue Bonds, Series    7/06 at 100.00    AA–    3,017,670 
     2001A-3, 5.375%, 7/01/20             
795    Santa Clara Valley Water District, California, Water Utility System Revenue Bonds, Series    6/10 at 100.00    AA    837,389 
     2000A, 5.000%, 6/01/18             
1,945    South Gate Public Financing Authority, California, Water Revenue Refunding Bonds, Series    No Opt. Call    AAA    2,220,004 
     1996A, 6.000%, 10/01/12 – FGIC Insured             

48,820    Total California            49,461,768 

    Colorado – 6.2% (4.0% of Total Investments)             
6,500    Adams 12 Five Star Schools, Adams County, Colorado, General Obligation Bonds, Series 2005,    12/15 at 100.00    AAA    6,725,030 
     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    2,091,320 
     Series 2001, 5.250%, 9/01/21             
670    Colorado Housing Finance Authority, Single Family Program Senior Bonds, Series 1999C-3,    10/09 at 105.00    Aa2    683,132 
     6.750%, 10/01/21             
3,040    Denver City and County, Colorado, Airport System Revenue Bonds, Series 1991D, 7.750%, 11/15/13    No Opt. Call    A    3,492,960 
     (Alternative Minimum Tax)             
    Denver Convention Center Hotel Authority, Colorado, Senior Revenue Bonds, Convention Center             
    Hotel, Series 2003A:             
2,940     5.000%, 12/01/20 – XLCA Insured    12/13 at 100.00    AAA    3,100,465 
10,000     5.000%, 12/01/33 – XLCA Insured    12/13 at 100.00    AAA    10,303,100 
4,345    El Paso County School District 20, Academy, Colorado, General Obligation Bonds, Series 2002,    12/12 at 100.00    Aaa    4,707,677 
     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    800,753 
     12/15/22 – FSA Insured             
4,125    Municipal Subdistrict Northern Colorado Water District, Revenue Bonds, Series 1997G, 5.250%,    12/07 at 101.00    AAA    4,300,189 
     12/01/15 – AMBAC Insured             

34,375    Total Colorado            36,204,626 

    Connecticut – 0.5% (0.3% of Total Investments)             
3,000    Connecticut Housing Finance Authority, Housing Mortgage Finance Program Bonds, Series 1996C-2,    5/06 at 102.00    AAA    3,073,290 
     6.250%, 11/15/18             

    District of Columbia – 5.5% (3.5% of Total Investments)             
6,000    District of Columbia, General Obligation Bonds, Series 1993B-2, 5.500%, 6/01/10 – FSA Insured    No Opt. Call    AAA    6,452,820 
5    District of Columbia, General Obligation Bonds, Series 1993E, 6.000%, 6/01/09 – CAPMAC Insured    6/06 at 100.00    AAA    5,011 
1,585    District of Columbia, General Obligation Refunding Bonds, Series 1993A, 6.000%, 6/01/07 (ETM) –    No Opt. Call    AAA    1,604,892 
     MBIA Insured             
7,215    District of Columbia, General Obligation Refunding Bonds, Series 1993A, 6.000%, 6/01/07 – MBIA    No Opt. Call    AAA    7,305,909 
     Insured             
4,250    District of Columbia, Hospital Revenue Refunding Bonds, Medlantic Healthcare Group, Series    8/06 at 102.00    AAA    4,390,930 
     1993A, 5.750%, 8/15/14 (ETM) – MBIA Insured             
    District of Columbia, Revenue Bonds, Georgetown University, Series 2001A:             
9,670     0.000%, 4/01/26 – MBIA Insured    4/11 at 42.15    AAA    3,222,141 
15,235     0.000%, 4/01/30 – MBIA Insured    4/11 at 32.93    AAA    3,971,003 
5,000    Washington Convention Center Authority, District of Columbia, Senior Lien Dedicated Tax    10/08 at 101.00    AAA    5,257,750 
     Revenue Bonds, Series 1998, 5.250%, 10/01/12 – AMBAC Insured             

48,960    Total District of Columbia            32,210,456 

    Florida – 5.7% (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    5,176,700 
     7/01/28 – MBIA Insured             
2,500    Florida State Board of Education, Full Faith and Credit Public Education Capital Outlay Bonds,    6/06 at 101.00    AAA    2,541,650 
     Series 1996A, 5.250%, 6/01/22 (Pre-refunded 6/01/06)             
5,000    Hillsborough County Aviation Authority, Florida, Revenue Bonds, Tampa International Airport,    10/13 at 100.00    AAA    5,315,550 
     Series 2003A, 5.250%, 10/01/18 – MBIA Insured (Alternative Minimum Tax)             
5,000    Martin County Industrial Development Authority, Florida, Industrial Development Revenue Bonds,    6/06 at 101.00    BB+    5,093,900 
     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    1,455,817 
     Sunset Bay Apartments, Series 2000-5A, 5.850%, 7/01/20 – FSA Insured (Alternative Minimum Tax)             
3,500    Miami-Dade County, Florida, Aviation Revenue Bonds, Miami International Airport, Series 2005A,    10/15 at 100.00    AAA    3,555,580 
     5.000%, 10/01/37 – XLCA Insured (Alternative Minimum Tax)             
9,500    Sunrise, Florida, Utility System Revenue Refunding Bonds, Series 1998, 5.000%, 10/01/28 –    10/18 at 100.00    AAA    10,091,185 
     AMBAC Insured             

31,880    Total Florida            33,230,382 

    Georgia – 2.5% (1.6% of Total Investments)             
4,400    Atlanta, Georgia, Water and Wastewater Revenue Bonds, Series 1999A, 5.500%, 11/01/22 – FGIC    No Opt. Call    AAA    5,003,372 
     Insured             
2,880    Georgia Municipal Electric Authority, General Power Revenue Bonds, Series 1992B, 8.250%,    No Opt. Call    A+    3,458,707 
     1/01/11             
5,500    Georgia Municipal Electric Authority, General Power Revenue Bonds, Series 1993B, 5.700%,    No Opt. Call    AAA    6,308,115 
     1/01/19 (ETM) – FGIC Insured             

12,780    Total Georgia            14,770,194 

    Hawaii – 1.0% (0.6% of Total Investments)             
1,580    Honolulu City and County, Hawaii, General Obligation Refunding and Improvement Bonds, Series    No Opt. Call    Aaa    1,714,300 
     1993B, 5.000%, 10/01/13 (ETM)             
3,720    Honolulu City and County, Hawaii, General Obligation Refunding and Improvement Bonds, Series    No Opt. Call    Aa2    4,004,059 
     1993B, 5.000%, 10/01/13             

5,300    Total Hawaii            5,718,359 

    Illinois – 14.4% (9.2% of Total Investments)             
4,000    Chicago Board of Education, Illinois, General Obligation Lease Certificates, Series 1992A,    No Opt. Call    AAA    4,567,680 
     6.250%, 1/01/15 – MBIA Insured             
5,550    Chicago, Illinois, Revenue Bonds, Midway Airport, Series 2001A, 5.125%, 1/01/26 – FSA Insured    1/11 at 101.00    AAA    5,679,870 
     (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    5,254,650 
1,665    Chicago, Illinois, Third Lien General Airport Revenue Bonds, O’Hare International Airport,    1/16 at 100.00    AAA    1,722,193 
     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    1,904,057 
1,685     8.500%, 12/01/15 – FGIC Insured    No Opt. Call    Aaa    2,304,254 
6,125    Illinois Development Finance Authority, GNMA Collateralized Mortgage Revenue Bonds, Greek    4/11 at 105.00    Aaa    6,365,100 
     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    1,475,994 
     Kankakee County, Series 2005B, 5.000%, 12/01/18 – AMBAC Insured             
4,000    Illinois Health Facilities Authority, FHA-Insured Mortgage Revenue Refunding Bonds, Sinai    8/13 at 100.00    AAA    4,113,600 
     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    4,103,200 
     5.500%, 5/15/32             
    Illinois Health Facilities Authority, Revenue Refunding Bonds, Lutheran General Health System,             
    Series 1993C:             
4,420     7.000%, 4/01/08    No Opt. Call    A+    4,591,054 
4,075     7.000%, 4/01/14    No Opt. Call    A+    4,872,192 
850    Illinois Housing Development Authority, Multifamily Program Bonds, Series 1994-5, 6.650%,    3/06 at 101.00    A+    857,574 
     9/01/14             
3,410    Illinois Housing Development Authority, Section 8 Elderly Housing Revenue Bonds, Skyline    5/06 at 100.00    A–    3,495,080 
     Towers Apartments, Series 1992B, 6.875%, 11/01/17             
9,795    Lake, Cook, Kane and McHenry Counties Community Unit School District 220, Barrington,    No Opt. Call    AAA    10,958,156 
     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    5,901,780 
4,540     5.000%, 12/15/28 – MBIA Insured    6/12 at 101.00    AAA    4,699,581 
36,040     0.000%, 6/15/40 – MBIA Insured    No Opt. Call    AAA    7,049,064 
3,050    Regional Transportation Authority, Cook, DuPage, Kane, Lake, McHenry and Will Counties,    No Opt. Call    AAA    3,821,925 
     Illinois, General Obligation Bonds, Series 1990A, 7.200%, 11/01/20 – AMBAC Insured             

110,545    Total Illinois            83,737,004 

    Indiana – 9.0% (5.8% of Total Investments)             
3,965    Indiana Educational Facilities Authority, Revenue Bonds, Butler University, Series 2001,    2/11 at 100.00    AAA    4,237,316 
     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    1,617,555 
     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    24,069,537 
     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    3,531,540 
     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    2,889,796 
     Series 2005A, 5.000%, 5/01/35 – AMBAC Insured             
    Indiana Transportation Finance Authority, Highway Revenue Bonds, Series 2003A:             
4,000     5.000%, 6/01/23 – FSA Insured    6/13 at 100.00    AAA    4,194,560 
6,000     5.000%, 6/01/24 – FSA Insured    6/13 at 100.00    AAA    6,287,160 
420    Marion County Convention and Recreational Facilities Authority, Indiana, Excise Tax Lease    6/07 at 102.00    AAA    427,253 
     Rental Revenue Bonds, Series 1997A, 5.000%, 6/01/27 – MBIA Insured             
5,000    Metropolitan School District Warren Township Vision 2005 School Building Corporation, Marion    1/11 at 100.00    AAA    5,445,300 
     County, Indiana, First Mortgage Bonds, Series 2000, 5.500%, 7/15/20 (Pre-refunded 1/15/11) -             
     FGIC Insured             

48,685    Total Indiana            52,700,017 

    Iowa – 0.0% (0.0% of Total Investments)             
15    Davenport, Iowa, Home Ownership Mortgage Revenue Refunding Bonds, Series 1994, 7.900%, 3/01/10    3/06 at 101.00    Aa2    15,047 

    Kansas – 1.8% (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    AAA    2,137,380 
     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    6,473,240 
     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    1,865,185 
     5.300%, 6/01/31 – MBIA Insured             

10,575    Total Kansas            10,475,805 

    Louisiana – 2.6% (1.7% of Total Investments)             
3,070    Jefferson Sales Tax District, Jefferson Parish, Louisiana, Special Sales Tax Revenue Refunding    12/12 at 100.00    AAA    3,271,791 
     Bonds, Series 2002, 5.250%, 12/01/20 – AMBAC Insured             
1,750    Louisiana Local Government Environmental Facilities and Community Development Authority, GNMA    6/12 at 105.00    Aaa    1,925,035 
     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+    5,272,106 
     Lady Health System, Series 2005A, 5.250%, 8/15/32             
4,565    Orleans Levee District, Louisiana, Levee District General Obligation Bonds, Series 1986,    6/06 at 102.50    AAA    4,708,341 
     5.950%, 11/01/14 – FSA Insured             

14,535    Total Louisiana            15,177,273 

    Maine – 1.3% (0.8% of Total Investments)             
7,520    Maine Educational Loan Marketing Corporation, Student Loan Revenue Bonds, Subordinate Series    No Opt. Call    A2    7,591,139 
     1994B-2, 6.250%, 11/01/06 (Alternative Minimum Tax)             

    Maryland – 2.6% (1.7% of Total Investments)             
2,905    Maryland Community Development Administration, Housing Revenue Bonds, Series 1996A, 5.875%,    1/07 at 102.00    Aa2    2,990,146 
     7/01/16             
2,900    Maryland Community Development Administration, Housing Revenue Bonds, Series 1997A, 6.000%,    7/07 at 102.00    Aa2    2,988,160 
     7/01/39 (Alternative Minimum Tax)             
6,800    Montgomery County Housing Opportunities Commission, Maryland, GNMA/FHA-Insured Multifamily    7/06 at 102.00    Aa2    7,003,932 
     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    2,429,569 
     Bonds, Series 2000B, 6.125%, 7/01/20 (Alternative Minimum Tax)             

14,920    Total Maryland            15,411,807 

    Massachusetts – 1.5% (1.0% of Total Investments)             
3,585    Massachusetts Development Finance Agency, Revenue Bonds, Curry College, Series 2005A, 5.000%,    3/15 at 100.00    A    3,626,084 
     3/01/35 – ACA Insured             
5,000    Massachusetts Turnpike Authority, Metropolitan Highway System Revenue Bonds, Senior Series    1/07 at 102.00    AAA    5,076,300 
     1997A, 5.000%, 1/01/37 – MBIA Insured             

8,585    Total Massachusetts            8,702,384 

    Michigan – 6.4% (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    AAA    6,220,980 
     7/01/35 – MBIA Insured             
8,915    Detroit, Michigan, Senior Lien Water Supply System Revenue Bonds, Series 1997A, 5.000%,    7/07 at 101.00    AAA    9,125,572 
     7/01/27 – MBIA Insured             
1,535    Detroit, Michigan, Senior Lien Water Supply System Revenue Bonds, Series 1997A, 5.000%,    7/07 at 101.00    AAA    1,585,977 
     7/01/27 (Pre-refunded 7/01/07) – MBIA Insured             
    Hancock Hospital Finance Authority, Michigan, FHA-Insured Mortgage Hospital Revenue Bonds,             
    Portage Health System Inc., Series 1998:             
740     4.625%, 8/01/18 – MBIA Insured    8/08 at 100.00    AAA    743,086 
4,400     5.450%, 8/01/47 – MBIA Insured    8/08 at 100.00    AAA    4,568,388 
5,000    Michigan State Building Authority, Revenue Refunding Bonds, Facilities Program, Series 2003II,    10/13 at 100.00    AAA    5,198,900 
     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    BB–    10,097,115 
     Obligated Group, Series 1998A, 5.250%, 8/15/23             

37,090    Total Michigan            37,540,018 

    Minnesota – 0.8% (0.5% of Total Investments)             
1,160    Minneapolis-St. Paul Housing Finance Board, Minnesota, FNMA/GNMA Mortgage-Backed Securities    11/07 at 102.00    AAA    1,190,114 
     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    3,703,000 
     Series 2001A, 5.250%, 1/01/25 – FGIC Insured             

4,660    Total Minnesota            4,893,114 

    Mississippi – 1.9% (1.2% of Total Investments)             
1,285    Jones County, Mississippi, Hospital Revenue Bonds, South Central Regional Medical Center,    12/07 at 100.00    BBB+    1,292,851 
     Series 1997, 5.350%, 12/01/10             
2,000    Mississippi Higher Education Assistance Corporation, Student Loan Revenue Bonds, Senior Series    3/06 at 100.00    Aaa    2,003,080 
     1993B, 5.800%, 9/01/06 (Alternative Minimum Tax)             
1,875    Mississippi Hospital Equipment and Facilities Authority, Revenue Bonds, Baptist Memorial    9/14 at 100.00    N/R    1,896,187 
     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    5,872,825 

10,340    Total Mississippi            11,064,943 

    Missouri – 0.9% (0.6% of Total Investments)             
3,000    Missouri Health and Educational Facilities Authority, Revenue Bonds, BJC Health System, Series    5/13 at 100.00    AA    3,126,570 
     2003, 5.125%, 5/15/24             
2,000    St. Louis, Missouri, Airport Revenue Bonds, Airport Development Program, Series 2001A, 5.000%,    7/11 at 100.00    AAA    2,062,560 
     7/01/26 – MBIA Insured             

5,000    Total Missouri            5,189,130 

    Nebraska – 1.6% (1.0% of Total Investments)             
9,000    NebHelp Inc., Nebraska, Senior Subordinate Bonds, Student Loan Program, Series 1993A-5A,    No Opt. Call    AAA    9,321,120 
     6.250%, 6/01/18 – MBIA Insured (Alternative Minimum Tax)             

    Nevada – 4.6% (2.9% 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    11,541,088 
     (Pre-refunded 6/15/12) – MBIA Insured             
4,500    Clark County School District, Nevada, General Obligation School Improvement Bonds, Series    No Opt. Call    AAA    5,109,885 
     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    7,376,250 
     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    2,177,595 
     Monorail Project, First Tier, Series 2000, 0.000%, 1/01/25 – AMBAC Insured             
405    Nevada Housing Division, Single Family Mortgage Bonds, Senior Series 1992B-1, 6.200%, 10/01/15    4/06 at 100.00    A1    406,106 

27,750    Total Nevada            26,610,924 

    New Jersey – 4.1% (2.6% of Total Investments)             
1,100    New Jersey Health Care Facilities Financing Authority, Revenue Bonds, Trinitas Hospital    7/10 at 101.00    BBB–    1,224,641 
     Obligated Group, Series 2000, 7.500%, 7/01/30             
880    New Jersey Turnpike Authority, Revenue Bonds, Series 1991C, 6.500%, 1/01/16 – MBIA Insured    No Opt. Call    AAA    1,033,138 
    New Jersey Turnpike Authority, Revenue Bonds, Series 1991C:             
300     6.500%, 1/01/16 (ETM) – MBIA Insured    No Opt. Call    AAA    353,694 
2,345     6.500%, 1/01/16 (ETM) – MBIA Insured    No Opt. Call    AAA    2,759,291 
13,775    Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds,    6/12 at 100.00    BBB    14,264,701 
     Series 2002, 5.750%, 6/01/32             
3,995    Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds,    6/13 at 100.00    BBB    4,488,502 
     Series 2003, 6.750%, 6/01/39             

22,395    Total New Jersey            24,123,967 

    New York – 9.5% (6.1% of Total Investments)             
1,200    Hempstead Industrial Development Agency, New York, Resource Recovery Revenue Refunding Bonds,    12/10 at 100.00    BB+    1,248,696 
     American Ref-Fuel Company of Hempstead LP, Series 2001, 5.000%, 12/01/10 (Mandatory put             
     6/01/10)             
11,825    New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Fiscal    5/08 at 101.00    AAA    12,098,394 
     Series 1998C, 5.000%, 5/01/26             
    New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Fiscal             
    Series 1998C:             
1,350     5.000%, 5/01/26 (Pre-refunded 5/01/08)    5/08 at 101.00    AAA    1,411,614 
35     5.000%, 5/01/26 (Pre-refunded 5/01/08)    5/08 at 101.00    AAA    36,597 
3,705     5.000%, 5/01/26 (Pre-refunded 5/01/08)    5/08 at 101.00    AAA    3,872,429 
220    New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Fiscal    5/10 at 101.00    AAA    243,344 
     Series 2000C, 5.875%, 11/01/16 (Pre-refunded 5/01/10)             
    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    4,018,228 
5,000     5.500%, 11/01/24 (Pre-refunded 5/01/10)    5/10 at 101.00    AAA    5,456,950 
1,590    New York State Medical Care Facilities Finance Agency, FHA-Insured Mortgage Revenue Bonds,    2/06 at 100.00    AAA    1,595,613 
     Hospital and Nursing Home Projects, Series 1992B, 6.200%, 8/15/22             
4,200    New York State Medical Care Facilities Finance Agency, FHA-Insured Mortgage Revenue Bonds,    2/06 at 101.00    AA    4,250,022 
     Kenmore Mercy Hospital, Series 1995B, 6.150%, 2/15/35             
    New York State Tobacco Settlement Financing Corporation, Tobacco Settlement Asset-Backed and             
    State Contingency Contract-Backed Bonds, Series 2003A-1:             
5,400     5.500%, 6/01/16    6/10 at 100.00    AA–    5,779,998 
2,500     5.500%, 6/01/18    6/12 at 100.00    AA–    2,726,075 
5,000    New York State Urban Development Corporation, Service Contract Revenue Bonds, Correctional and    1/17 at 100.00    AA–    5,394,050 
     Youth Facilities, Series 2002A, 5.500%, 1/01/17 (Mandatory put 1/01/11)             
6,250    Port Authority of New York and New Jersey, Special Project Bonds, JFK International Air    No Opt. Call    AAA    7,134,938 
     Terminal LLC, Sixth Series 1997, 6.250%, 12/01/15 – MBIA Insured (Alternative Minimum Tax)             

51,905    Total New York            55,266,948 

    North Carolina – 3.2% (2.0% of Total Investments)             
2,675    Charlotte, North Carolina, Water and Sewerage System Revenue Bonds, Series 2001, 5.500%,    6/11 at 101.00    AAA    2,943,811 
     6/01/13             
2,445    North Carolina Infrastructure Finance Corporation, Certificates of Participation, Correctional    2/14 at 100.00    AA+    2,553,093 
     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    2,213,980 
     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    10,789,200 
     1/01/18 – MBIA Insured             

17,120    Total North Carolina            18,500,084 

    Ohio – 2.3% (1.5% of Total Investments)             
9,000    Cleveland, Ohio, Airport System Revenue Bonds, Series 2000A, 5.000%, 1/01/31 – FSA Insured    1/10 at 101.00    AAA    9,206,100 
3,000    Franklin County, Ohio, Development Revenue Bonds, American Chemical Society, Series 1999,    10/09 at 101.00    A    3,193,950 
     5.800%, 10/01/14             
1,000    Franklin County, Ohio, FHA-Insured Multifamily Housing Mortgage Revenue Bonds, Hamilton Creek    7/06 at 102.00    Aa    1,012,090 
     Apartments Project, Series 1994A, 5.550%, 7/01/24 (Alternative Minimum Tax)             

13,000    Total Ohio            13,412,140 

    Oklahoma – 0.7% (0.5% of Total Investments)             
340    Oklahoma Housing Finance Agency, Single Family Mortgage Revenue Bonds, Homeownership Loan    3/10 at 101.00    Aaa    357,187 
     Program, Series 2000C-2, 6.200%, 9/01/28 (Alternative Minimum Tax)             
3,340    Tulsa Industrial Authority, Oklahoma, Hospital Revenue Refunding Bonds, Hillcrest Medical    No Opt. Call    AAA    3,648,616 
     Center, Series 1996, 6.500%, 6/01/09 (ETM) – CONNIE LEE/AMBA Insured             

3,680    Total Oklahoma            4,005,803 

    Pennsylvania – 1.6% (1.0% of Total Investments)             
1,530    Beaver Area School District, Beaver County, Pennsylvania, General Obligation Bonds, Series    7/06 at 100.00    AAA    1,542,684 
     2001, 5.000%, 1/15/20 (Pre-refunded 7/15/06) – FGIC Insured             
5,000    Pennsylvania Economic Development Financing Authority, Senior Lien Resource Recovery Revenue    7/06 at 100.00    BB    4,999,550 
     Bonds, Northampton Generating Project, Series 1994A, 6.400%, 1/01/09 (Alternative Minimum Tax)             
2,600    Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Series 2004A, 5.500%, 12/01/31 –    12/14 at 100.00    AAA    2,858,206 
     AMBAC Insured             

9,130    Total Pennsylvania            9,400,440 

    Puerto Rico – 3.2% (2.0% of Total Investments)             
12,390    Puerto Rico, General Obligation and Public Improvement Refunding Bonds, Series 1997, 6.500%,    No Opt. Call    AAA    14,617,350 
     7/01/13 – MBIA Insured             
3,470    University of Puerto Rico, University System Revenue Bonds, Series 2000O, 5.750%, 6/01/18 –    6/10 at 100.00    AAA    3,774,354 
     MBIA Insured             

15,860    Total Puerto Rico            18,391,704 

    Rhode Island – 3.6% (2.3% of Total Investments)             
20,000    Rhode Island Tobacco Settlement Financing Corporation, Tobacco Settlement Asset-Backed Bonds,    6/12 at 100.00    BBB    21,135,800 
     Series 2002A, 6.250%, 6/01/42             

    South Carolina – 4.2% (2.7% of Total Investments)             
4,120    Medical University Hospital Authority, South Carolina, FHA-Insured Mortgage Revenue Bonds,    8/14 at 100.00    AAA    4,403,250 
     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    3,099,930 
     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    6,080,650 
5,750     4.000%, 1/01/23 – MBIA Insured    7/06 at 100.00    AAA    5,402,125 
5,085    Piedmont Municipal Power Agency, South Carolina, Electric Revenue Refunding Bonds, Series    No Opt. Call    AAA    5,598,178 
     1998A, 5.500%, 1/01/13 – MBIA Insured             

22,955    Total South Carolina            24,584,133 

    South Dakota – 0.4% (0.3% of Total Investments)             
1,750    South Dakota Health and Educational Facilities Authority, Revenue Bonds, Sioux Valley    11/14 at 100.00    A+    1,866,813 
     Hospitals, Series 2004A, 5.500%, 11/01/31             

    Tennessee – 0.3% (0.3% of Total Investments)             
1,500    Metropolitan Government of Nashville-Davidson County, Tennessee, Electric System Revenue    5/08 at 102.00    AA    1,577,805 
     Bonds, Series 1998A, 5.200%, 5/15/23             

    Texas – 18.3% (11.7% of Total Investments)             
4,500    Alliance Airport Authority, Texas, Special Facilities Revenue Bonds, American Airlines Inc.,    6/06 at 100.00    CCC    3,877,830 
     Series 1990, 7.500%, 12/01/29 (Alternative Minimum Tax)             
4,000    Central Texas Regional Mobility Authority, Travis and Williamson Counties, Toll Road Revenue    1/15 at 100.00    AAA    4,117,280 
     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    3,371,492 
     Series 1999, 4.750%, 2/01/25             
2,250    Dallas-Ft. Worth International Airport, Texas, Joint Revenue Bonds, Series 2004B, 5.000%,    11/14 at 100.00    AAA    2,285,708 
     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    8,696,800 
     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    6,179,520 
     Apartments, Series 2000, 7.500%, 6/01/40 (Alternative Minimum Tax)             
3,750    Harris County Flood Control District, Texas, General Obligation Bonds, Series 2003, 5.000%,    10/13 at 100.00    AA+    3,934,913 
     10/01/23             
7,000    Harris County Health Facilities Development Corporation, Texas, Thermal Utility Revenue Bonds,    11/13 at 100.00    AAA    7,176,470 
     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    9,744,279 
     Project, Series 2001B, 0.000%, 9/01/28 – AMBAC Insured             
5,000    Houston, Texas, Junior Lien Water and Sewerage System Revenue Refunding Bonds, Series 1997D,    12/07 at 102.00    AAA    5,244,700 
     5.000%, 12/01/25 (Pre-refunded 12/01/07) – FGIC Insured             
7,500    Houston, Texas, Junior Lien Water and Sewerage System Revenue Refunding Bonds, Series 2002A,    No Opt. Call    AAA    9,041,925 
     5.750%, 12/01/32 (ETM) – FSA Insured             
6,950    Liberty County Housing Development Corporation, Texas, Multifamily Housing Revenue Bonds,    6/34 at 100.00    N/R    5,752,237 
     Series 1999, 7.250%, 6/01/34             
199    Midland Housing Finance Corporation, Texas, Single Family Mortgage Revenue Refunding Bonds,    5/06 at 103.00    Aaa    205,281 
     Series 1992A, 8.450%, 12/01/11             
    Montgomery Independent School District, Montgomery County, Texas, Unlimited Tax School             
    Building and Refunding Bonds, Series 2001:             
2,300     5.500%, 2/15/21    2/11 at 100.00    AAA    2,472,822 
2,400     5.500%, 2/15/23    2/11 at 100.00    AAA    2,580,336 
    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    3,112,544 
3,000     5.125%, 2/15/31    8/11 at 100.00    Aaa    3,090,960 
6,000    Raven Hills Higher Education Corporation, Texas, Student Housing Revenue Bonds, Angelo State    8/12 at 100.00    Aaa    6,290,040 
     University – Texan Hall LLC, Series 2002A, 5.000%, 8/01/25 – MBIA Insured             
3,410    Retama Development Corporation, Texas, Special Facilities Revenue Bonds, Retama Park    12/12 at 100.00    AAA    4,118,121 
     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    1,966,122 
     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    4,853,361 
     Refunding Bonds, Series 2001, 5.125%, 2/01/26             
8,500    Travis County Health Facilities Development Corporation, Texas, Hospital Revenue Bonds,    5/06 at 100.00    Aaa    8,652,915 
     Daughters of Charity National Health System, Series 1993B, 6.000%, 11/15/22 (ETM)             

121,934    Total Texas            106,765,656 

    Utah – 6.2% (3.9% of Total Investments)             
4,845    Bountiful, Davis County, Utah, Hospital Revenue Refunding Bonds, South Davis Community    12/08 at 101.00    N/R    4,571,209 
     Hospital Project, Series 1998, 5.750%, 12/15/18             
5,065    Intermountain Power Agency, Utah, Power Supply Revenue Bonds, Series 1996A, 6.150%, 7/01/14 (ETM)    7/06 at 102.00    A+ (4)    5,237,919 
2,935    Intermountain Power Agency, Utah, Power Supply Revenue Bonds, Series 1996A, 6.150%, 7/01/14    7/06 at 102.00    A+    3,020,526 
11,750    Intermountain Power Agency, Utah, Power Supply Revenue Refunding Bonds, Series 1997B, 5.750%,    7/07 at 102.00    AAA    12,331,390 
     7/01/19 – MBIA Insured             
5,820    Intermountain Power Agency, Utah, Power Supply Revenue Refunding Bonds, Series 1997B, 5.750%,    7/07 at 102.00    AAA    6,128,809 
     7/01/19 (Pre-refunded 7/01/07) – MBIA Insured             
1,435    Salt Lake City and Sandy Metropolitan Water District, Utah, Water Revenue Bonds, Series 2004,    7/14 at 100.00    Aaa    1,519,292 
     5.000%, 7/01/21 – AMBAC Insured             
570    Utah Housing Finance Agency, Single Family Mortgage Bonds, Series 2000G, 5.875%, 7/01/27    7/10 at 100.00    AA    573,728 
     (Alternative Minimum Tax)             
    Utah Housing Finance Agency, Single Family Mortgage Bonds, Series 2001C:             
1,915     5.500%, 1/01/18 (Alternative Minimum Tax)    1/11 at 100.00    AA–    1,962,473 
590     5.650%, 1/01/21 (Alternative Minimum Tax)    1/11 at 100.00    Aa2    607,724 

34,925    Total Utah            35,953,070 

    Virginia – 1.8% (1.2% 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    8,429,639 
     AMBAC Insured             
1,775    Virginia Transportation Board, Transportation Revenue Refunding Bonds, U.S. Route 58 Corridor    5/07 at 101.00    AA+    1,827,416 
     Development Program, Series 1997C, 5.125%, 5/15/19             

9,965    Total Virginia            10,257,055 

    Washington – 10.2% (6.5% of Total Investments)             
1,855    Chelan County Public Utility District 1, Washington, Hydro Consolidated System Revenue Bonds,    7/09 at 101.00    AA    1,994,403 
     Series 1999A, 6.200%, 7/01/34 (Alternative Minimum Tax)             
1,655    Everett, Washington, Limited Tax General Obligation Bonds, Series 1997, 5.125%, 9/01/17 – FSA    9/07 at 100.00    Aaa    1,694,786 
     Insured             
6,000    Grant County Public Utility District 2, Washington, Revenue Bonds, Wanapum Hydroelectric    1/15 at 100.00    AAA    6,193,620 
     Development, Series 2005A, 5.000%, 1/01/34 – FGIC Insured             
1,605    Skagit County Housing Authority, Washington, GNMA Collateralized Mortgage Loan Nursing    5/06 at 103.00    AAA    1,655,136 
     Facility Revenue Bonds, Sea Mar Community Health Centers, Series 1993, 7.000%, 6/20/35             
1,500    Snohomish County School District 6, Mukilteo, Washington, Unlimited Tax General Obligation and    No Opt. Call    AAA    1,673,835 
     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    9,035,985 
     (Pre-refunded 1/01/11) – FSA Insured             
4,705    Tacoma, Washington, Sewerage Revenue Refunding Bonds, Series 1994B, 8.000%, 12/01/08 – FGIC    No Opt. Call    AAA    5,272,141 
     Insured             
6,080    Washington Public Power Supply System, Revenue Refunding Bonds, Nuclear Project 2, Series    No Opt. Call    Aaa    6,180,624 
     1990A, 7.250%, 7/01/06 (ETM)             
395    Washington Public Power Supply System, Revenue Refunding Bonds, Nuclear Project 2, Series    No Opt. Call    Aaa    401,352 
     1990A, 7.250%, 7/01/06             
11,000    Washington Public Power Supply System, Revenue Refunding Bonds, Nuclear Project 3, Series    No Opt. Call    Aaa    12,216,160 
     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    4,936,551 
     1998A, 5.125%, 7/01/18             
1,000    Washington State Healthcare Facilities Authority, Revenue Bonds, Harrison Memorial Hospital,    8/13 at 102.00    AAA    1,034,800 
     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    2,033,220 
     Series 1998, 5.000%, 8/15/21 – RAAI Insured             
4,710    Washington State Tobacco Settlement Authority, Tobacco Settlement Asset-Backed Revenue Bonds,    6/13 at 100.00    BBB    5,143,414 
     Series 2002, 6.500%, 6/01/26             

55,360    Total Washington            59,466,027 

    Wisconsin – 1.4% (1.0% of Total Investments)             
500    Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Medical College of    12/06 at 102.00    AAA    517,540 
     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    7,829,550 
     Inc., Series 2002A, 5.250%, 2/15/32 – MBIA Insured             

8,000    Total Wisconsin            8,347,090 

$       937,287    Total Investments (cost $865,491,574) – 156.2%            910,902,410 


    Other Assets Less Liabilities – 1.8%            10,818,328 

    Preferred Shares, at Liquidation Value – (58.0)%            (338,400,000) 

    Net Assets Applicable to Common Shares – 100%          $  583,320,738 



(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 or Moody’s rating. Ratings below Baa by Moody’s Investor 
    Service, Inc. or BBB by Standard & Poor’s Group are considered to be below investment grade. 
(4)    Securities are backed by an escrow or trust containing sufficient U.S. Government or U.S. Government 
    agency securities which ensures the timely payment of principal and interest. Such securities are normally 
    considered to be equivalent to AAA rated securities. 
(5)    The issuer has received a proposed 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 it is formally determined that the interest on the bonds 
    should be treated as taxable. 
N/R    Investment is not rated. 
(ETM)    Security is escrowed to maturity. 

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 and timing differences in recognizing certain gains and losses on investment transactions. At January 31, 2006, the cost of investments was $864,943,621.

Gross unrealized appreciation and gross unrealized depreciation of investments at January 31, 2006, were as follows:


Gross unrealized:   
  Appreciation  $48,818,586 
  Depreciation  (2,859,797) 

Net unrealized appreciation (depreciation) of investments  $45,958,789 



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/ Jessica R. Droeger                     
                                                    Jessica R. Droeger
                                                    Vice President and Secretary

Date         March 31, 2006        

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, 2006        

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

Date        March 31, 2006        

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