Nuveen Premium Income Municipal Fund 4, Inc.

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:          7/31/04         

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

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

Item 1. Schedule of Investments

Portfolio of Investments (Unaudited)
Nuveen Premium Income Municipal Fund 4, Inc. (NPT)
July 31, 2004


Principal

Optional Call

Market

Amount (000)

Description(1)

Provisions*

Ratings**

Value


Alabama - 3.6%

 

$

975

Alabama Higher Education Loan Corporation, Student Loan Revenue Refunding Bonds, Series 1994D,

No Opt. Call

AAA

$    978,510

   5.850%, 9/01/04 (Alternative Minimum Tax) - FSA Insured

 

2,395

Alabama Housing Finance Authority, Multifamily Housing Revenue Bonds, South Bay Apartments Project,

2/11 at 102.00

AAA

2,401,227

   Series 2000K, 5.950%, 2/01/33 (Alternative Minimum Tax)

 

11,745

Alabama Special Care Facilities Financing Authority of Birmingham, Hospital Revenue Bonds,

11/05 at 101.00

Aaa

11,954,178

   Daughter's of Charity National Health System - Providence Hospital and St. Vincent's Hospital,

   Series 1995, 5.000%, 11/01/25

 

5,150

Alabama 21st Century Authority, Tobacco Settlement Revenue Bonds, Series 2001, 5.750%, 12/01/16

12/11 at 101.00

A-

5,102,517


Alaska - 0.6%

 

3,065

Alaska Municipal Bond Bank Authority, General Obligation Bonds, Series 2003E, 5.250%, 12/01/26 -

12/13 at 100.00

AAA

3,161,793

   MBIA Insured


Arizona - 1.6%

 

5,000

Arizona Tourism and Sports Authority, Tax Revenue Bonds, Multipurpose Stadium Facility Project,

7/13 at 100.00

Aaa

5,019,450

   Series 2003A, 5.000%, 7/01/31 - MBIA Insured

 

3,750

Salt River Project Agricultural Improvement and Power District, Arizona, Electric System Revenue

12/13 at 100.00

AAA

3,936,638

   Bonds, Series 2003, 5.000%, 12/01/18 - MBIA Insured


Arkansas - 0.1%

 

110

Arkansas Development Finance Authority, FHA-Insured or VA Guaranteed Mortgage Loans, Single Family

8/04 at 100.00

AA

110,295

   Mortgage Revenue Refunding Bonds, Series 1991A, 8.000%, 8/15/11

 

125

Jacksonville Residential Housing Facilities Board, Arkansas, FNMA-Backed Single Family Mortgage

1/05 at 102.00

Aaa

127,289

   Revenue Refunding Bonds, Series 1993A, 7.900%, 1/01/11

 

182

Lonoke County Residential Housing Facilities Board, Arkansas, Single Family Mortgage Revenue

4/05 at 103.00

Aaa

186,060

   Refunding Bonds, Series 1993A, 7.900%, 4/01/11


California - 7.5%

 

17,000

California Health Facilities Financing Authority, Revenue Bonds, Adventist Health System/West,

3/13 at 100.00

A

15,979,150

   Series 2003A, 5.000%, 3/01/33 (DD1, settling 8/02/04)

 

10,000

California, General Obligation Bonds, Series 2003, 5.250%, 2/01/22

8/13 at 100.00

A3

10,388,800

 

4,500

California, General Obligation Bonds, Series 2004, 5.100%, 2/01/34

2/09 at 100.00

A3

4,435,155

 

4,780

Foothill/Eastern Transportation Corridor Agency, California, Toll Road Revenue Bonds, Series 1995A,

No Opt. Call

AAA

3,188,499

   0.000%, 1/01/14

 

1,000

Golden State Tobacco Securitization Corporation, California, Tobacco Settlement Asset-Backed Bonds,

6/13 at 100.00

BBB

902,480

   Series 2003A-1, 6.750%, 6/01/39

 

3,000

Los Angeles Department of Water and Power, California, Power System Revenue Bonds, Series 2001A-3,

7/06 at 100.00

AA-

3,127,860

   5.375%, 7/01/20

 

1,715

Merced County Housing Authority, California, FNMA Multifamily Housing Revenue Refunding Bonds,

8/04 at 102.00

Aaa

1,743,229

   Belmont Park Apartments Project, Series 1993A, 5.875%, 1/01/19

 

1,945

South Gate Public Financing Authority, California, Water Revenue Refunding Bonds, Series 1996A,

No Opt. Call

AAA

2,268,998

   6.000%, 10/01/12 - FGIC Insured


Colorado - 5.2%

 

2,000

Colorado Health Facilities Authority, Revenue Refunding Bonds, Catholic Health Initiatives, Series

9/11 at 100.00

AA

2,050,420

   2001, 5.250%, 9/01/21

 

1,230

Colorado Housing and Finance Authority, Single Family Program Senior Bonds, Series 1999C-3,

10/09 at 105.00

Aa2

1,264,920

   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

3,665,510

   (Alternative Minimum Tax)

 

Denver Convention Center Hotel Authority, Colorado, Convention Center Hotel Senior Revenue Bonds,

Series 2003A:

2,940

   5.000%, 12/01/20 - XLCA Insured

12/13 at 100.00

AAA

3,033,904

10,000

   5.000%, 12/01/33 - XLCA Insured

12/13 at 100.00

AAA

9,991,700

 

4,345

El Paso County School District No. 20, Academy, Colorado, General Obligation Bonds, Series 2002,

12/12 at 100.00

Aaa

4,689,559

   5.250%, 12/15/17 - FGIC Insured

 

4,125

Municipal Subdistrict Northern Colorado, Water Conservancy District Revenue Bonds, Series 1997C,

12/07 at 101.00

AAA

4,451,040

   5.250%, 12/01/15 - AMBAC Insured


Connecticut - 0.6%

 

3,000

Connecticut Housing Finance Authority, Housing Mortgage Finance Program Bonds, Series 1996C-2,

5/06 at 102.00

AAA

3,136,590

   6.250%, 11/15/18


District of Columbia - 4.8%

 

6,000

District of Columbia, General Obligation Bonds, Series 1993B-2, 5.500%, 6/01/10 - FSA Insured

No Opt. Call

AAA

6,670,020

 

4,250

District of Columbia, Hospital Revenue Refunding Bonds, Medlantic Healthcare Group Issue, Series

8/06 at 102.00

AAA

4,606,108

   1993A, 5.750%, 8/15/14 - MBIA Insured

 

5

District of Columbia, General Obligation Bonds, Series 1993E, 6.000%, 6/01/09 - CAPMAC Insured

12/04 at 101.00

AAA

5,068

 

District of Columbia, General Obligation Refunding Bonds, Series 1993A:

1,585

   6.000%, 6/01/07 - MBIA Insured

No Opt. Call

AAA

1,704,382

7,215

   6.000%, 6/01/07 - MBIA Insured

No Opt. Call

AAA

7,904,249

 

District of Columbia, University Revenue Bonds, Georgetown University Issue, Series 2001A:

9,670

   0.000%, 4/01/26 - MBIA Insured

4/11 at 42.15

AAA

2,742,219

15,235

   0.000%, 4/01/30 - MBIA Insured

4/11 at 32.93

AAA

3,343,625


Florida - 6.4%

 

5,000

Broward County School Board, Florida, Certificates of Participation, Series 2003, 5.000%, 7/01/28 -

7/13 at 100.00

AAA

5,026,950

   MBIA Insured

 

5,000

Hillsborough County Aviation Authority, Florida, Revenue Bonds, Tampa International Airport, Series

10/13 at 100.00

AAA

5,242,500

   2003A, 5.250%, 10/01/18 (Alternative Minimum Tax) - MBIA Insured

 

9,000

JEA, Florida, Water and Sewer System Revenue Bonds, Series 2001A, 5.200%, 10/01/20 (Pre-refunded

10/05 at 100.00

AA-***

9,373,140

   to 10/01/05)

 

5,000

Martin County Industrial Development Authority, Florida, Industrial Development Revenue Bonds,

12/04 at 102.00

BBB-

5,133,550

   Indiantown Cogeneration LP Project, Series 1994A, 7.875%, 12/15/25 (Alternative Minimum Tax)

 

1,380

Miami-Dade County Housing Finance Authority, Florida, Multifamily Revenue Bonds, Sunset Bay

1/11 at 102.00

AAA

1,440,182

   Apartments Project, Series 2000-5A, 5.850%, 7/01/20 (Alternative Minimum Tax) - FSA Insured

 

9,500

Sunrise, Florida, Utility System Revenue Refunding Bonds, Series 1998, 5.000%, 10/01/28 - AMBAC

10/18 at 100.00

AAA

9,628,630

   Insured


Georgia - 2.4%

 

3,400

Atlanta, Georgia, Water and Wastewater Revenue Bonds, Series 1999A, 5.500%, 11/01/22 - FGIC

No Opt. Call

AAA

3,817,690

   Insured

 

2,880

Georgia Municipal Electric Authority, Power Revenue Bonds, Series 1992B, 8.250%, 1/01/11

No Opt. Call

A+

3,609,994

 

5,500

Georgia Municipal Electric Authority, General Power Revenue Bonds, Series 1993B, 5.700%, 1/01/19 -

No Opt. Call

AAA

6,238,265

   FGIC Insured


Hawaii - 1.0%

 

Honolulu City and County, Hawaii, General Obligation Bonds, Refunding and Improvement

Series, 1993B:

1,580

   5.000%, 10/01/13

No Opt. Call

Aaa

1,732,233

3,720

   5.000%, 10/01/13

No Opt. Call

Aa2

4,040,180


Illinois - 14.9%

 

4,000

Chicago Board of Education, Illinois, General Obligation Lease Certificates, Series 1992A, 6.250%,

No Opt. Call

AAA

4,655,920

   1/01/15 - MBIA Insured

 

5,550

Chicago, Illinois, Revenue Bonds, Midway Airport, Series 2001A, 5.125%, 1/01/26 (Alternative

1/11 at 101.00

AAA

5,553,164

   Minimum Tax) - FSA Insured

 

5,000

Chicago, Illinois, Sales Tax Revenue Bonds, Series 1998, 5.250%, 1/01/28 - FGIC Insured

7/08 at 102.00

AAA

5,099,050

 

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

1,968,557

1,685

   8.500%, 12/01/15 - FGIC Insured

No Opt. Call

Aaa

2,329,327

 

6,170

Illinois Development Finance Authority, Revenue Bonds, Greek American Nursing Project, Series

4/11 at 105.00

Aaa

6,838,766

   2000A, 7.600%, 4/20/40

 

590

Illinois Development Finance Authority, Childcare Facility Revenue Bonds, Illinois Facilities Fund

No Opt. Call

N/R

591,440

   Project, Series 1992, 7.400%, 9/01/04

 

450

Illinois Educational Facilities Authority Revenue Bonds, Chicago College of Osteopathic Medicine,

1/05 at 100.00

AAA

479,110

   Series A, 8.750%, 7/01/05

 

Illinois Health Facilities Authority, Revenue Refunding Bonds, Lutheran General Health System,

Series 1993C:

5,705

   7.000%, 4/01/08

No Opt. Call

A+

6,244,351

4,075

   7.000%, 4/01/14

No Opt. Call

A+

4,927,938

 

4,000

Illinois Health Facilities Authority, FHA-Insured Mortgage Revenue Refunding Bonds, Sinai Health

8/13 at 100.00

AAA

3,910,960

   System, Series 2003, 5.150%, 2/15/37

 

7,725

Illinois Housing Development Authority, Multifamily Program Bonds, Series 1994-5, 6.650%, 9/01/14

9/04 at 102.00

A+

7,887,302

 

3,410

Illinois Housing Development Authority, Section 8 Elderly Housing Revenue Bonds, Skyline Towers

11/04 at 100.00

A-

3,420,435

   Apartments Project, Series 1992B, 6.875%, 11/01/17

 

9,795

Community Unit School District No. 220 Lake, Cook, Kane and McHenry Counties, Illinois,

No Opt. Call

AAA

10,814,072

   General Obligation Bonds, Series 2002, 5.250%, 12/01/19 - FSA Insured

 

Metropolitan Pier and Exposition Authority, Illinois, McCormick Place Expansion Project Bonds,

Series 2002A:

9,500

   0.000%, 6/15/24 - MBIA Insured

6/22 at 101.00

AAA

5,047,825

4,540

   5.000%, 12/15/28 - MBIA Insured

6/12 at 101.00

AAA

4,531,465

34,440

   0.000%, 6/15/40 - MBIA Insured

No Opt. Call

AAA

4,522,316

 

3,050

Regional Transportation Authority, Cook, DuPage, Kane, Lake, McHenry and Will Counties, Illinois,

No Opt. Call

AAA

3,922,544

   General Obligation Bonds, Series 1990A, 7.200%, 11/01/20 - AMBAC Insured

 

2,162

Wood River Township, Madison County, Illinois, General Obligation Bonds, Series 1993, 6.625%,

8/04 at 102.00

N/R

1,936,498

   2/01/14


Indiana - 8.7%

 

22,000

Indiana Health Facility Financing Authority, Hospital Revenue Bonds, Clarian Health Obligated

8/10 at 101.50

AAA

22,558,580

   Group, Series 2000A, 5.500%, 2/15/30 - MBIA Insured

 

3,000

Indiana Health Facility Financing Authority, Hospital Revenue Refunding Bonds, Columbus Regional

No Opt. Call

AAA

3,653,670

   Hospital, Series 1993, 7.000%, 8/15/15 - FSA Insured

 

3,500

Indiana Educational Facilities Authority, Educational Facilities Revenue Bonds, Butler University

2/11 at 100.00

AAA

3,664,290

   Project, Series 2001, 5.500%, 2/01/26 - MBIA Insured

 

1,500

Indiana Educational Facilities Authority, Revenue Bonds, University of Indianapolis, Series 1999,

10/09 at 101.00

AAA

1,657,440

   5.750%, 10/01/19 - FSA 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

4,084,240

6,000

   5.000%, 6/01/24 - FSA Insured

6/13 at 100.00

AAA

6,087,360

 

2,100

Indianapolis, Indiana, Economic Development Revenue Bonds, Meadows Section 8 Project, Series 1993A,

1/05 at 102.00

Ca

1,134,000

   6.000%, 7/01/23 (Alternative Minimum Tax)#

 

710

Kokomo Hospital Authority, Indiana, Hospital Revenue Refunding Bonds, St. Joseph Hospital and

8/04 at 101.00

N/R***

727,196

   Health Center, Series 1993, 6.250%, 8/15/05

 

5,000

M.S.D. of Warren Township, Vision 2005 School Building Corporation, Marion County, Indiana, First

1/11 at 100.00

AAA

5,451,250

   Mortgage Bonds, Series 2000, 5.500%, 7/15/20 - FGIC Insured


Iowa - 0.0%

 

85

Davenport, Iowa, Home Ownership Mortgage Revenue Refunding Bonds, Series 1994, 7.900%, 3/01/10

9/04 at 102.00

Aa2

85,879


Kansas - 1.8%

 

2,000

Olathe, Kansas, Health Facilities Revenue Bonds, Olathe Medical Center Project, Series

9/10 at 100.00

AAA

2,091,500

   2000A, 5.500%, 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

6,329,573

   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

1,802,763

   5.300%, 6/01/31 - MBIA Insured


Louisiana - 1.9%

 

3,070

Jefferson Sales Tax District, Jefferson Parish, Louisiana, Special Sales Tax Revenue Refunding

12/12 at 100.00

AAA

3,266,787

   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

1,916,495

   Collateralized Mortgage Revenue Refunding Bonds - Sharlo Apartments Project, Series 2002A, 6.500%,

   6/20/37

 

5,240

Orleans Levee District, Louisiana, Levee District General Obligation Bonds, Series 1986, 5.950%,

12/05 at 103.00

AAA

5,680,736

   11/01/14 - FSA Insured


Maine - 2.6%

 

7,520

Maine Educational Loan Marketing Corporation, Student Loan Revenue Bonds, Subordinate Series

No Opt. Call

A2

7,893,067

   1994B-2, 6.250%, 11/01/06 (Alternative Minimum Tax)

 

6,635

Maine State Housing Authority, Mortgage Purchase Bonds, Series 2000C-1, 6.050%, 11/15/31

5/10 at 100.00

AA+

6,865,434

   (Alternative Minimum Tax)


Maryland - 2.8%

 

3,215

Maryland Community Development Administration, Housing Revenue Bonds, Series 1996A, 5.875%,

1/07 at 102.00

Aa2

3,335,466

   7/01/16

 

2,900

Maryland Community Development Administration, Housing Revenue Bonds, Series 1997A, 6.000%,

7/07 at 102.00

Aa2

2,998,020

   7/01/39 (Alternative Minimum Tax)

 

6,800

Montgomery County Housing Opportunities Commission, Maryland, GNMA/FHA-Insured Multifamily Housing

7/06 at 102.00

Aa2

7,032,832

   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

2,448,738

   Bonds, Series 2000B, 6.125%, 7/01/20 (Alternative Minimum Tax)


Massachusetts - 0.0%

 

35

Massachusetts Housing Finance Agency, Housing Project Revenue Refunding Bonds, Series 1993A,

10/04 at 101.00

A+

35,335

   6.300%, 10/01/13


Michigan - 5.8%

 

10,225

Detroit, Michigan, Water Supply System Revenue Bonds, Senior Lien, Series 1997A, 5.000%, 7/01/27 -

7/07 at 101.00

AAA

10,241,871

   MBIA Insured

 

1,645

Hancock Hospital Finance Authority, Michigan, FHA-Insured Mortgage Hospital Revenue Bonds, Portage

8/08 at 100.00

AAA

1,688,741

   Health System Inc., Series 1998, 4.625%, 8/01/18 - MBIA Insured

 

4,400

Hancock Hospital Finance Authority, Michigan, FHA-Insured Mortgage Hospital Revenue Bonds, Portage

8/08 at 100.00

AAA

4,453,196

   Health System Inc., Series 1998, 5.450%, 8/01/47 - MBIA Insured

 

5,000

Michigan State Building Authority, Revenue Refunding Bonds, Facilities Program, Series 2003-II,

10/13 at 100.00

AAA

5,016,100

   5.000%, 10/15/29 - MBIA Insured

 

10,500

Michigan State Hospital Finance Authority, Hospital Revenue Bonds, Detroit Medical Center Obligated

8/08 at 101.00

Ba3

7,619,640

   Group, Series 1998A, 5.250%, 8/15/23

 

3,750

Michigan Strategic Fund, Collateralized Limited Obligation Revenue Refunding Bonds, Consumers Power

12/04 at 101.00

AAA

3,800,888

   Company Project, Series 1993B, 5.800%, 6/15/10 - CAPMAC Insured


Minnesota - 1.6%

 

2,460

Minneapolis-St. Paul Housing Finance Board, Minnesota, Single Family Mortgage Revenue Bonds,

11/07 at 102.00

AAA

2,513,382

   FNMA/GNMA Mortgage-Backed Securities Program, Series 1997, 5.800%, 11/01/30 (Alternative

   Minimum Tax)

 

3,500

Minneapolis-St. Paul Metropolitan Airports Commission, Minnesota, Airport Revenue Bonds, Series

1/11 at 100.00

AAA

3,610,355

   2001A, 5.250%, 1/01/25 - FGIC Insured

 

2,685

Minnetonka, Minnesota, GNMA Collateralized Multifamily Housing Revenue Refunding Bonds, Brier Creek

12/04 at 102.00

AAA

2,751,669

   Project, Series 1994A, 6.450%, 6/20/24


Mississippi - 1.4%

 

2,000

Mississippi Higher Education Assistance Corporation, Student Loan Revenue Bonds, Senior Series

9/04 at 100.00

Aaa

2,005,220

   1993B, 5.800%, 9/01/06 (Alternative Minimum Tax)

 

5,180

Mississippi, General Obligation Refunding Bonds, Series 2002A, 5.500%, 12/01/18

No Opt. Call

AA

5,890,437


Missouri - 0.4%

 

2,000

St. Louis, Missouri, Airport Revenue Bonds, Airport Development Program, Series 2001A, 5.000%,

7/11 at 100.00

AAA

2,001,660

   7/01/26 - MBIA Insured


Nebraska - 1.8%

 

9,000

Nebraska Higher Education Loan Program Incorporated, Senior Subordinate Bonds, Series 1993A-5A,

No Opt. Call

AAA

9,617,310

   6.250%, 6/01/18 (Alternative Minimum Tax) - MBIA Insured

 

335

Nebraska Investment Finance Authority, Single Family Housing Revenue Bonds, Series 1998F, 5.600%,

3/07 at 101.50

AAA

344,554

   9/01/20 (Alternative Minimum Tax)


Nevada - 4.7%

 

7,000

Clark County, Nevada, Motor Vehicle Fuel Tax Highway Improvement Revenue Bonds, Series 2003,

7/13 at 100.00

AAA

7,143,640

   5.000%, 7/01/23 - AMBAC Insured

 

10,420

Clark County School District, Nevada, General Obligation Bonds, Series 2002C, 5.500%, 6/15/18 -

6/12 at 100.00

AAA

11,478,255

   MBIA Insured

 

4,500

Clark County School District, Nevada, General Obligation School Improvement Bonds, Series 1991A,

No Opt. Call

AAA

5,365,170

   7.000%, 6/01/10 - MBIA Insured

 

5,425

Director of Nevada State Department of Business and Industry, Revenue Bonds, Las Vegas Monorail

No Opt. Call

AAA

1,750,105

   Project, First Tier Series 2000, 0.000%, 1/01/25 - AMBAC Insured

 

855

Nevada Housing Division, Single Family Mortgage Bonds, Senior Series 1992B, 6.200%, 10/01/15

10/04 at 102.00

A1

873,032


New Hampshire - 0.0%

 

10

New Hampshire Housing Finance Agency, Single Family Mortgage Acquisition Revenue Bonds, Series

1/07 at 102.00

Aa2

10,457

   1996C, 6.200%, 7/01/16 (Alternative Minimum Tax)


New Jersey - 3.6%

 

1,100

New Jersey Health Care Facilities Financing Authority, Revenue Bonds, Trinitas Hospital Obligated

7/10 at 101.00

BBB-

1,221,605

   Group, Series 2000, 7.500%, 7/01/30

 

New Jersey Turnpike Authority, Revenue Bonds, Series 1991C:

2,345

   6.500%, 1/01/16 - MBIA Insured

No Opt. Call

AAA

2,811,514

655

   6.500%, 1/01/16 - MBIA Insured

No Opt. Call

AAA

784,127

 

14,560

Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds, Series

6/12 at 100.00

BBB

12,765,917

   2002, 5.750%, 6/01/32

 

3,125

Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds, Series

6/13 at 100.00

BBB

2,820,250

   2003, 6.750%, 6/01/39


New York - 13.7%

 

1,200

Hempstead Industrial Development Agency, New York, Resource Recovery Revenue Refunding Bonds,

No Opt. Call

A3

1,269,396

   American REF-FUEL Company of Hempstead Project, Series 2001, 5.000%, 12/01/10 (Mandatory put

   6/01/10)

 

1,000

New York City, New York, General Obligation Bonds, Fiscal Series 1995A, 7.000%, 8/01/04

No Opt. Call

A

1,000,150

 

New York City, New York, General Obligation Bonds, Fiscal Series 1996F:

6,580

   6.500%, 2/01/05

No Opt. Call

A***

6,748,711

7,730

   6.500%, 2/01/05

No Opt. Call

A

7,922,864

 

New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Fiscal

Series 1998C:

1,350

   5.000%, 5/01/26 (Pre-refunded to 5/01/08)

5/08 at 101.00

AA+***

1,475,051

35

   5.000%, 5/01/26 (Pre-refunded to 5/01/08)

5/08 at 100.00

AA+***

38,242

15,530

   5.000%, 5/01/26

5/08 at 101.00

AA+

15,586,529

 

New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Fiscal

Series 2000C:

3,630

   5.875%, 11/01/16 (Pre-refunded to 5/15/10)

5/10 at 101.00

AA+***

4,174,391

5,000

   5.500%, 11/01/24

5/10 at 101.00

AA+

5,298,400

 

220

New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Fiscal Series

5/10 at 101.00

AA+

248,739

   2000A, 5.875%, 11/01/16

 

2,145

New York State Medical Care Facilities Finance Agency, FHA-Insured Mortgage Revenue Bonds, Hospital

8/04 at 100.00

AAA

2,247,960

   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, Kenmore

2/05 at 102.00

AA

4,359,936

   Mercy Hospital, Series 1995B, 6.150%, 2/15/35

 

3,365

New York State Medical Care Facilities Finance Agency, Hospital and Nursing Home FHA-Insured

8/04 at 102.00

AA

3,442,832

   Mortgage Revenue Bonds, Series 1994A, 6.200%, 2/15/21

 

7,500

New York State Thruway Authority, General Revenue Bonds, Series C, 6.000%, 1/01/15 (Pre-refunded

1/05 at 102.00

AAA

7,794,600

   to 1/01/05) - FGIC Insured

 

6,250

Port Authority of New York and New Jersey, Special Project Bonds, JFK International Air Terminal

No Opt. Call

AAA

7,072,750

   LLC, Sixth Series 1997, 6.250%, 12/01/15 (Alternative Minimum Tax) - MBIA Insured

 

New York 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-

5,743,872

2,500

   5.500%, 6/01/18

6/12 at 100.00

AA-

2,679,600


North Carolina - 3.3%

 

2,675

Charlotte, North Carolina, Water and Sewer System Revenue Bonds, Series 2001, 5.500%, 6/01/13

6/11 at 101.00

AAA

2,996,027

 

2,000

North Carolina Municipal Power Agency 1, Catawba Electric Revenue Bonds, Series 1992, 6.000%,

No Opt. Call

AAA

2,282,100

   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

10,697,600

   1/01/18 - MBIA Insured

 

2,445

North Carolina Infrastructure Finance Corporation, Certificates of Participation, Correctional

2/14 at 100.00

AA+

2,524,365

   Facilities, Series 2004A, 5.000%, 2/01/21


North Dakota - 0.0%

 

25

Minot, North Dakota, Single Family Mortgage Revenue Refunding Bonds, Series 1993, 7.700%, 8/01/10

8/04 at 101.00

Aa2

25,208


Ohio - 3.3%

 

9,000

Cleveland, Ohio, Airport System Revenue Bonds, Series 2000A, 5.000%, 1/01/31 - FSA Insured

1/10 at 101.00

AAA

9,002,070

 

3,000

Franklin County, Ohio, Development Revenue Bonds, American Chemical Society Project,

10/09 at 101.00

A

3,228,750

   Series 1999, 5.800%, 10/01/14

 

1,000

Franklin County, Ohio, FHA-Insured Multifamily Housing Mortgage Revenue Bonds, Hamilton Creek

1/05 at 103.00

Aa

1,012,690

   Apartments Project, Series 1994A, 5.550%, 7/01/24 (Alternative Minimum Tax)

 

720

Ohio Housing Finance Agency, Residential Mortgage Revenue Bonds, GNMA Mortgage-Backed

3/05 at 102.00

Aaa

740,556

   Securities Program, Series 1995A-1, 6.300%, 9/01/17

 

4,370

Toledo, Ohio, General Obligation Bonds, Series 1994, 5.750%, 12/01/09 (Pre-refunded to 12/01/04) -

12/04 at 102.00

AAA

4,521,683

   AMBAC Insured


Oklahoma - 2.2%

 

515

Oklahoma Housing Finance Agency, Single Family Mortgage Revenue Bonds, Homeownership

3/10 at 101.00

Aaa

539,669

   Loan Program, Series 2000C-2, 6.200%, 9/01/28 (Alternative Minimum Tax)

 

Oklahoma County Finance Authority, Multifamily Housing First Mortgage Revenue Bonds, Multiple

Apartments Project, Series 1998A:

3,495

   7.000%, 4/01/18#

4/06 at 102.00

N/R

34,950

7,000

   7.125%, 4/01/28#

4/06 at 102.00

N/R

70,000

 

9,775

Tulsa County Industrial Authority, Oklahoma, First Mortgage Multifamily Housing Revenue Bonds,

3/11 at 101.00

N/R

7,704,948

   Stoneridge Apartments Project, Series 1999, 6.125%, 3/01/39 (Alternative Minimum Tax)

 

3,340

Tulsa Industrial Authority, Oklahoma, Revenue and Refunding Bonds, Hillcrest Medical Center

No Opt. Call

AAA

3,841,668

   Project, Series 1996, 6.500%, 6/01/09 - CONNIE LEE/AMBAC Insured


Pennsylvania - 1.4%

 

5,000

Pennsylvania Economic Development Financing Authority, Resource Recovery Revenue Bonds, Northampton

1/05 at 101.00

BBB-

5,104,150

   Generating Project, Senior Lien, Series 1994A, 6.400%, 1/01/09 (Alternative Minimum Tax)

 

2,600

Pennsylvania Turnpike Commission, Pennsylvania Turnpike Revenue Bonds, Series 2004A, 5.500%,

12/14 at 100.00

AAA

2,771,860

   12/01/31 - AMBAC Insured


Puerto Rico - 3.4%

 

12,390

Puerto Rico, Public Improvement General Obligation Refunding Bonds, Series 1997, 6.500%, 7/01/13 -

No Opt. Call

AAA

15,020,397

   MBIA Insured

 

3,470

University of Puerto Rico, University System Revenue Bonds, Series 2000O, 5.750%, 6/01/18 - MBIA

6/10 at 100.00

AAA

3,889,419

   Insured


Rhode Island - 2.9%

 

20,000

Rhode Island Tobacco Settlement Financing Corporation, Tobacco Settlement Asset-Backed Bonds,

6/12 at 100.00

BBB

16,582,400

   Series 2002A, 6.250%, 6/01/42


South Carolina - 3.5%

 

3,000

Myrtle Beach, South Carolina, Hospitality and Accommodation Fee Revenue Bonds, Series 2004A, 5.000%,

6/14 at 100.00

AAA

2,967,240

   6/01/36 - FGIC Insured

 

Piedmont Municipal Power Agency, South Carolina, Electric Revenue Refunding Bonds, Series 1991:

5,000

   6.250%, 1/01/21 - FGIC Insured

No Opt. Call

AAA

5,952,900

5,750

   4.000%, 1/01/23 - MBIA Insured

1/05 at 100.00

AAA

5,123,480

 

5,085

Piedmont Municipal Power Agency, South Carolina, Electric Revenue Refunding Bonds, Series 1998A,

No Opt. Call

AAA

5,665,910

   5.500%, 1/01/13 - MBIA Insured


Tennessee - 0.3%

 

1,500

Metropolitan Government of Nashville and Davidson County, Tennessee, Electric System Revenue Bonds,

5/08 at 102.00

AA

1,551,060

   Series 1998A, 5.200%, 5/15/23


Texas - 17.6%

 

4,500

Alliance Airport Authority Inc., Texas, Special Facilities Revenue Bonds, American Airlines Inc.

12/04 at 100.00

CCC

3,090,510

   Project, Series 1990, 7.500%, 12/01/29 (Alternative Minimum Tax)

 

3,345

Columbia-Brazoria Independent School District, Texas, Unlimited Tax School Building Bonds, Series

2/09 at 100.00

AAA

3,257,328

   1999, 4.750%, 2/01/25

 

8,000

Dallas-Fort Worth International Airport, Texas, Joint Revenue Refunding and Improvement Bonds,

11/11 at 100.00

AAA

8,798,240

   Series 2001A, 5.875%, 11/01/19 (Alternative Minimum Tax) - FGIC Insured

 

2,250

Dallas-Fort Worth International Airport, Texas, Joint Revenue Bonds, Series 2004B, 5.000%,

11/14 at 100.00

AAA

2,203,785

   11/01/27 (Alternative Minimum Tax) - FSA Insured

 

6,000

Garland Housing Finance Corporation, Texas, Multifamily Housing Revenue Bonds, Legacy Pointe

12/11 at 101.00

N/R

5,976,480

   Apartments, Series 2000, 7.500%, 6/01/40 (Alternative Minimum Tax)

 

7,000

Harris County Health Facilities Development Corporation, Texas, Thermal Utility Revenue Bonds, TECO

11/13 at 100.00

AAA

6,918,730

   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

7,344,864

   Project, Series 2001B, 0.000%, 9/01/28 - AMBAC Insured

 

7,500

Houston, Texas, Water and Sewer System Junior Lien Revenue Refunding Bonds, Series 2002A, 5.750%,

No Opt. Call

AAA

8,415,675

   12/01/32 - FSA Insured

 

5,000

Houston, Texas, Water and Sewer System Junior Lien Revenue Refunding Bonds, Series 1997D, 5.000%,

12/07 at 102.00

AAA

5,486,350

   12/01/25 (Pre-refunded to 12/01/07) - FGIC Insured

 

7,080

Liberty County Housing Development Corporation, Texas, Multifamily Housing Revenue Bonds, Series

6/09 at 100.00

N/R

6,301,200

   1999, 7.250%, 6/01/34

 

341

Midland Housing Finance Corporation, Texas, Single Family Mortgage Revenue Refunding Bonds, Series

11/05 at 103.00

Aaa

356,942

   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

2,487,726

2,400

   5.500%, 2/15/23

2/11 at 100.00

AAA

2,533,944

 

Mount 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

3,034,710

3,000

   5.125%, 2/15/31

8/11 at 100.00

Aaa

3,021,600

 

6,000

Raven Hills Higher Education Corporation, Texas, Student Housing Revenue Bonds, Angelo State

8/12 at 100.00

Aaa

6,053,160

   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

No Opt. Call

AAA

4,633,167

   Racetrack Project, Series 1993, 8.750%, 12/15/12

 

1,800

Sam Rayburn Municipal Power Agency, Texas, Power Supply System Revenue Refunding Bonds, Series

10/12 at 100.00

AA

1,925,604

   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

4,757,763

   Refunding Bonds, Series 2001, 5.125%, 2/01/26

 

4,259

Texas General Services Commission, Participation Interests, Series 1992, 7.500%, 9/01/22

9/04 at 100.50

A

4,329,314

 

8,500

Travis County Health Facilities Development Corporation, Texas, Hospital Revenue Bonds, Daughters

11/04 at 101.00

Aaa

8,904,345

   of Charity National Health System, Series 1993B, 6.000%, 11/15/22


Utah - 6.6%

 

4,845

Bountiful, Davis County, Utah, Hospital Revenue Refunding Bonds, South Davis Community Hospital

12/08 at 101.00

N/R

4,301,972

   Project, Series 1998, 5.750%, 12/15/18

 

17,570

Intermountain Power Agency, Utah, Power Supply Revenue Refunding Bonds, Series 1997B, 5.750%,

7/07 at 102.00

AAA

19,287,292

   7/01/19 - MBIA Insured

 

Intermountain Power Agency, Utah, Power Supply Revenue Bonds, Series 1996A:

5,065

   6.150%, 7/01/14

7/06 at 102.00

A+***

5,523,889

2,935

   6.150%, 7/01/14

7/06 at 102.00

A+

3,172,207

 

1,435

Salt Lake City and Sandy Metropolitan Water District, Utah, Water Revenue Bonds, Series 2004,

7/14 at 100.00

Aaa

1,487,779

   5.000%, 7/01/21

 

650

Utah Housing Finance Agency, Single Family Mortgage Bonds, Series 2000G, 5.875%, 7/01/27

7/10 at 100.00

AA

652,444

   (Alternative Minimum Tax)

 

Utah Housing Finance Agency, Single Family Mortgage Bonds, Series 2001C:

2,180

   5.500%, 1/01/18 (Alternative Minimum Tax)

1/11 at 100.00

AA-

2,261,052

655

   5.650%, 1/01/21 (Alternative Minimum Tax)

1/11 at 100.00

Aa2

671,853


Virginia - 1.5%

 

8,190

Hampton, Virginia, Convention Center Revenue Bonds, Series 2002, 5.000%, 1/15/35 - AMBAC Insured

1/13 at 100.00

AAA

8,198,190


Washington - 10.4%

 

1,050

King County, Bellevue, Washington, Water and Sewer Revenue Refunding Bonds, Series 1994, 5.875%,

9/04 at 100.00

Aa2

1,053,801

   7/01/09 (Pre-refunded to 9/17/04)

 

1,855

Chelan County Public Utility District 1, Washington, Hydro Consolidated System Revenue Bonds,

7/09 at 101.00

AA

1,951,942

   Series 1999A, 6.200%, 7/01/34 (Alternative Minimum Tax)

 

1,035

Covington Water District, Washington, Water Improvement and Revenue Refunding Bonds, Series 1995,

3/05 at 100.00

AAA

1,062,935

   6.050%, 3/01/20 (Pre-refunded to 3/01/05) - AMBAC Insured

 

1,655

Everett, Washington, General Obligation Bonds, Series 1997, Limited Tax, 5.125%, 9/01/17 - FSA

9/07 at 100.00

Aaa

1,750,907

   Insured

 

1,000

Seattle Indian Services Commission, Washington, Special Obligation Bonds, Series 1994, 6.000%,

11/04 at 100.00

AAA

1,009,870

   11/01/16

 

1,626

Skagit County Housing Authority, Washington, GNMA Collateralized Mortgage Loan Nursing Facility

11/04 at 104.00

AAA

1,696,861

   Revenue Bonds, Sea Mar Community Project, 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

1,706,850

   Refunding Bonds, Series 1993, 5.700%, 12/01/12 - FGIC Insured

 

8,155

Tacoma, Washington, Electric System Revenue Refunding Bonds, Series 2001A, 5.750%, 1/01/20 -

1/11 at 101.00

AAA

9,048,706

   FSA Insured

 

4,705

Tacoma, Washington, Sewer Revenue Refunding Bonds, Series 1994B, 8.000%, 12/01/08 - FGIC

No Opt. Call

AAA

5,646,282

   Insured

 

4,870

Washington State Tobacco Settlement Authority, Tobacco Settlement Asset-Backed Revenue Bonds,

6/13 at 100.00

BBB

4,580,868

   Series 2002, 6.500%, 6/01/26

 

2,000

Washington State Healthcare Facilities Authority, Revenue Bonds, Highline Community Hospital,

8/08 at 102.00

AA

2,007,200

   Series 1998, 5.000%, 8/15/21 - RAAI Insured

 

1,000

Washington State Healthcare Facilities Authority, Revenue Bonds, Harrison Memorial Hospital, Series

8/13 at 102.00

AAA

992,920

   1998, 5.000%, 8/15/28 - AMBAC Insured

 

Washington Public Power Supply System, Revenue Refunding Bonds, Nuclear Project 2, Series 1990A:

6,080

   7.250%, 7/01/06

No Opt. Call

Aaa

6,688,304

395

   7.250%, 7/01/06

No Opt. Call

Aaa

432,971

 

11,000

Washington Public Power Supply System, Nuclear Project 3 Revenue Refunding Bonds, Series 1993B,

No Opt. Call

Aaa

12,885,620

   7.000%, 7/01/09

 

4,700

Washington Public Power Supply System, Nuclear Project 3 Revenue Refunding Bonds, Series 1998A,

7/08 at 102.00

Aaa

4,887,386

   5.125%, 7/01/18

 

1,400

Washington State University, Housing and Dining System Revenue and Refunding Bonds, Series 1994,

10/04 at 101.00

AAA

1,425,970

   6.375%, 10/01/18 (Pre-refunded to 10/01/04) - MBIA Insured


Wisconsin - 1.3%

 

7,500

Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Ministry Health Care Inc.,

2/12 at 101.00

AAA

7,591,950

   Series 2002A, 5.250%, 2/15/32 - MBIA Insured


$

947,520

Total Long-Term Investments (cost $869,986,759) - 157.2%

886,380,123



Short-Term Investments - 1.0%

 

2,500

Connecticut Health and Educational Facilities Authority, Revenue Bonds, Yale University, Variable

A-1+

2,500,000

   Rate Demand Obligations, Series 1997, 1.050%, 7/01/29†

 

3,000

Palm Beach County Health Facilities Authority, Florida, Revenue Bonds, Variable Rate

VMIG-1

3,000,000

   Demand Obligations, Bethesda Healthcare System, Series 2001, 1.130%, 12/01/31†


$

5,500

Total Short-Term Investments (cost $5,500,000)

5,500,000



Total Investments (cost $875,486,759) - 158.2%

891,880,123


Other Assets Less Liabilities - 1.8%

10,172,522


Preferred Shares, at Liquidation Value - (60.0)%

(338,400,000)


Net Assets Applicable to Common Shares - 100%

$563,652,645


(1)  

All percentages shown in the Portfolio of Investments are based on net assets applicable to

Common shares.

*  

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.

**  

Ratings: Using the higher of Standard & Poor's or Moody's rating.

***  

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.

N/R  

Investment is not rated.

#  

Non-income producing security, in the case of a bond, generally denotes that issuer has

defaulted on the payment of principal or interest or has filed for bankruptcy.

(DD1)  

Portion of security purchased on a delayed delivery basis.

†  

Security has a maturity of more than one year, but has variable rate and demand features

which qualify it as a short-term security. The rate disclosed is that currently in effect. This rate

changes periodically based on market conditions or a specified market index.

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 income on taxable market discount securities and timing differences in

recognizing certain gains and losses on security transactions.

At July 31, 2004, the cost of investments were $874,844,080.

Gross unrealized appreciation and gross unrealized depreciation of investments at July 31, 2004 were as follows:


Gross unrealized:

   Appreciation

$   38,712,055

   Depreciation

(21,676,012)


Net unrealized appreciation (depreciation) of investments

$   17,036,043


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 Rules 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934, as amended (the "Exchange Act")(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 has materially affected, or is 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 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--Vice President and Secretary        

Date         09/29/04        

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--Chief Administrative Officer (Principal Executive Officer)        

Date         09/29/04        

By (Signature and Title)*         /s/ Stephen D. Foy--Vice President and Controller (Principal Financial Officer)        

Date         09/29/04        

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