Nuveen Senior Income Fund

 

 

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 811-09571

Nuveen Senior Income Fund

(Exact name of registrant as specified in charter)

    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:       July 31      

Date of reporting period:  April 30, 2016  

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

 

 


NSL

 

Nuveen Senior Income Fund

  

Portfolio of Investments

   April 30, 2016 (Unaudited)

 

Principal
Amount (000)
    Description (1)   Coupon (4)      Maturity (2)      Ratings (3)      Value  
 

LONG-TERM INVESTMENTS – 153.5% (95.2% of Total Investments)

  

     
 

VARIABLE RATE SENIOR LOAN INTERESTS – 135.5% (84.0% of Total Investments) (4)

  

     
      Aerospace & Defense – 2.5% (1.6% of Total Investments)                       
$ 1,829     

B/E Aerospace, Inc., Term Loan B, First Lien

    4.000%         12/16/21         BB+      $ 1,841,566   
  3,343     

Sequa Corporation, Term Loan B

    5.250%         6/19/17         CCC+        2,577,100   
  1,981     

Transdigm, Inc., Term Loan E, First Lien

    3.500%         5/16/22         BB        1,964,866   
  7,153     

Total Aerospace & Defense

                               6,383,532   
      Air Freight & Logistics – 0.6% (0.4% of Total Investments)                           
  1,496     

XPO Logistics, Inc., Term Loan B

    5.500%         10/27/21         Ba1        1,507,005   
      Airlines – 2.3% (1.4% of Total Investments)                           
  1,466     

American Airlines, Inc., Term Loan B, First Lien

    3.250%         6/29/20         BB+        1,460,369   
  1,980     

American Airlines, Inc., Term Loan B, First Lien

    3.500%         10/08/21         BB+        1,981,083   
  2,450     

US Airways, Inc., Term Loan B1

    3.500%         5/23/19         BB+        2,452,041   
  5,896     

Total Airlines

                               5,893,493   
      Automobiles – 2.2% (1.4% of Total Investments)                           
  1,430     

Chrysler Group LLC, Tranche B, Term Loan

    3.250%         12/31/18         BBB–        1,431,593   
  3,341     

Formula One Group, Term Loan, First Lien

    4.750%         7/30/21         B        3,287,037   
  1,000     

Formula One Group, Term Loan, Second Lien

    7.750%         7/29/22         CCC+        946,667   
  5,771     

Total Automobiles

                               5,665,297   
      Building Products – 1.0% (0.6% of Total Investments)                           
  1,177     

Gates Global LLC, Term Loan

    4.250%         7/06/21         B+        1,131,407   
  1,418     

Quikrete Holdings, Inc., Term Loan, First Lien

    4.000%         9/28/20         BB–        1,417,871   
  2,595     

Total Building Products

                               2,549,278   
      Capital Markets – 0.6% (0.4% of Total Investments)                           
  1,463     

Guggenheim Partners LLC, Initial Term Loan

    4.250%         7/22/20         N/R        1,465,852   
      Chemicals – 2.1% (1.3% of Total Investments)                           
  1,530     

Ineos US Finance LLC, Cash Dollar, Term Loan

    3.750%         5/04/18         BB–         1,531,154   
  332     

Ineos US Finance LLC, Term Loan B, First Lien

    4.250%         3/31/22         BB–        331,601   
  1,595     

Mineral Technologies, Inc., Term Loan B2

    4.750%         5/07/21         BB        1,591,938   
  748     

OM Group, Inc., Term Loan, First Lien

    7.000%         10/28/21         B        699,497   
  1,159     

Univar, Inc., Term Loan B, First Lien

    4.250%         7/01/22         BB–         1,146,019   
  5,364     

Total Chemicals

                               5,300,209   
      Commercial Services & Supplies – 3.1% (2.0% of Total Investments)  
  498     

Acosta, Inc., Term Loan B

    4.250%         9/26/21         B1         493,225   
  130     

Education Management LLC, Tranche A, Term Loan, (5)

    5.500%         7/02/20         N/R        35,853   
  236     

Education Management LLC, Tranche B, Term Loan, (5)

    8.500%         7/02/20         N/R        12,383   
  794     

CCS Income Trust, Term Loan, First Lien

    6.250%         5/15/18         B–         724,574   
  2,278     

iQor US, Inc., Term Loan, First Lien

    6.000%         4/01/21         B        1,890,737   
  250     

iQor US, Inc., Term Loan, Second Lien

    9.750%         4/01/22         CCC+        182,500   
  1,000     

KAR Auction Services, Inc., Term Loan B3, First Lien

    4.250%         3/04/23         BB–         1,003,750   
  1,200     

Protection One, Inc., Term Loan B, (WI/DD)

    TBD         TBD         Ba2        1,205,813   
  1,493     

Protection One, Inc., Term Loan, First Lien

    5.000%         7/01/21         BB–         1,496,854   
  998     

Universal Services of America, Term Loan, First Lien

    4.750%         7/28/22         B        979,628   
  8,877     

Total Commercial Services & Supplies

                               8,025,317   

 

Nuveen Investments     1   


NSL    Nuveen Senior Income Fund   
   Portfolio of Investments (continued)    April 30, 2016 (Unaudited)

 

Principal
Amount (000)
    Description (1)   Coupon (4)      Maturity (2)      Ratings (3)      Value  
      Communications Equipment – 1.4% (0.8% of Total Investments)         
$ 3,163     

Avaya, Inc., Term Loan B3

    5.134%         10/26/17         B2       $ 2,232,799   
  326     

Avaya, Inc., Term Loan B6

    6.500%         3/31/18         B2         219,856   
  21     

Commscope, Inc., Term Loan B, First Lien

    3.828%         12/29/22         BB        20,790   
  975     

Riverbed Technology, Inc., Term Loan B, First Lien

    5.750%         4/25/22         B1         983,286   
  4,485     

Total Communications Equipment

                               3,456,731   
      Consumer Finance – 2.4% (1.5% of Total Investments)         
  4,500     

First Data Corporation, Term Loan B, First Lien

    4.439%         3/24/21         BB        4,516,327   
  1,500     

First Data Corporation, Term Loan B

    4.189%         7/08/22         BB        1,501,339   
  6,000     

Total Consumer Finance

                               6,017,666   
      Containers & Packaging – 0.9% (0.5% of Total Investments)         
  902     

Berry Plastics Holding Corporation, Term Loan F

    4.000%         10/03/22         BB        906,097   
  1,277     

BWAY Holding Company, Term Loan B, First Lien

    5.500%         8/14/20         B2         1,275,015   
  2,179     

Total Containers & Packaging

                               2,181,112   
      Diversified Consumer Services – 5.8% (3.6% of Total Investments)                       
  995     

AlixPartners LLP, Term Loan B, First Lien

    4.500%         7/28/22         B+        998,421   
  4,836     

Cengage Learning Acquisitions, Inc., Exit Term Loan

    7.000%         3/31/20         B+        4,816,481   
  2,844     

Harland Clarke Holdings Corporation, Term Loan B3

    7.000%         5/22/18         BB–         2,813,629   
  2,876     

Hilton Hotels Corporation, Term Loan B2

    3.500%         10/25/20         BBB–         2,887,726   
  1,489     

Houghton Mifflin, Term Loan B, First Lien

    4.000%         5/28/21         BB        1,460,836   
  108     

Laureate Education, Inc., Term Loan B

    5.000%         6/15/18         B        100,150   
  1,808     

ServiceMaster Company, Term Loan

    4.250%         7/01/21         BB        1,817,162   
  14,956     

Total Diversified Consumer Services

                               14,894,405   
      Diversified Financial Services – 0.8% (0.5% of Total Investments)                       
  993     

MJ Acquisition Corp., Term Loan, First Lien

    4.000%         6/01/22         BB–         990,019   
  1,100     

MGM Growth Properties, Term Loan B

    4.000%         4/07/23         BB        1,108,250   
  2,093     

Total Diversified Financial Services

                               2,098,269   
      Diversified Telecommunication Services – 5.1% (3.1% of Total Investments)  
  1,903     

Frontier Communications Corporation, Term Loan A, Delayed Draw, First Lien, (DD1)

    2.940%         3/31/21         BB        1,806,543   
  852     

Greeneden U.S. Holdings II LLC, Term Loan B

    4.000%         2/08/20         B        842,072   
  591     

Intelsat Jackson Holdings, S.A., Tranche B2, Term Loan

    3.750%         6/30/19         B1         555,303   
  1,667     

Level 3 Financing, Inc., Term Loan, Tranche B3

    4.000%         8/01/19         Ba1        1,674,167   
  3,095     

WideOpenWest Finance LLC, Term Loan B

    4.500%         4/01/19         Ba3        3,085,391   
  1,849     

Ziggo N.V., Term Loan B1

    3.652%         1/15/22         BB–         1,845,037   
  1,191     

Ziggo N.V., Term Loan B2

    3.648%         1/15/22         BB–         1,188,977   
  1,960     

Ziggo N.V., Term Loan B3, Delayed Draw

    3.601%         1/15/22         BB–         1,955,442   
  13,108     

Total Diversified Telecommunication Services

                               12,952,932   
      Electric Utilities – 0.4% (0.2% of Total Investments)                       
  1,000     

Energy Future Intermediate Holding Company, Term Loan

    4.250%         12/19/16         N/R        1,000,417   
      Electronic Equipment, Instruments & Components – 1.2% (0.8% of Total Investments)         
  1,475     

SMART Modular Technologies, Inc., Term Loan B

    8.250%         8/31/17         B        1,253,355   
  1,875     

TTM Technologies, Term Loan B

    6.000%         5/31/21         B+        1,840,273   
  3,350     

Total Electronic Equipment, Instruments & Components

                               3,093,628   
      Energy Equipment & Services – 0.7% (0.5% of Total Investments)                       
  333     

Dynamic Energy Services International LLC, Term Loan

    9.500%         3/06/18         B3         294,490   
  2,500     

Drill Rigs Holdings, Inc., Tranche B1, Term Loan

    6.000%         3/31/21         CCC+        1,224,857   
  500     

Seventy Seven Operating LLC, Term Loan B, (WI/DD)

    TBD         TBD         CCC        392,500   
  3,333     

Total Energy Equipment & Services

                               1,911,847   

 

  2      Nuveen Investments


Principal
Amount (000)
    Description (1)   Coupon (4)      Maturity (2)      Ratings (3)      Value  
      Food & Staples Retailing – 8.6% (5.3% of Total Investments)                       
$ 2,455     

Albertson’s LLC, Term Loan B2

    5.500%         3/21/19         BB      $ 2,462,037   
  12,870     

Albertson’s LLC, Term Loan B4

    5.500%         8/25/21         BB        12,931,673   
  2,287     

BJ’s Wholesale Club, Inc., Replacement Loan, First Lien

    4.500%         9/26/19         B–         2,269,392   
  1,990     

BJ’s Wholesale Club, Inc., Replacement Loan, Second Lien

    8.500%         3/26/20         CCC        1,935,735   
  1,375     

Rite Aid Corporation, Tranche 2, Term Loan, Second Lien

    4.875%         6/21/21         BB        1,380,156   
  969     

Supervalu, Inc., New Term Loan

    4.500%         3/21/19         BB        960,769   
  21,946     

Total Food & Staples Retailing

                               21,939,762   
      Food Products – 6.8% (4.2% of Total Investments)                       
  983     

Hearthside Group Holdings, Term Loan, First Lien

    4.500%         6/02/21         B1         981,542   
  3,282     

Jacobs Douwe Egberts, Term Loan B

    4.250%         7/02/22         BB        3,294,528   
  2,367     

Keurig Green Mountain, Inc., Term Loan B, First Lien

    5.250%         3/03/23         BB        2,380,945   
  7,923     

US Foods, Inc., Incremental Term Loan

    4.500%         3/31/19         B        7,923,470   
  2,966     

Wilton Products, Inc., Tranche B, Term Loan

    8.500%         8/30/18         N/R        2,684,402   
  17,521     

Total Food Products

                               17,264,887   
      Health Care Equipment & Supplies – 3.9% (2.5% of Total Investments)                       
  580     

Ardent Medical Services, Inc., Term Loan B, First Lien

    6.500%         8/04/21         B1         582,672   
  649     

CareCore National LLC, Term Loan

    5.500%         3/05/21         B        608,597   
  3,252     

Onex Carestream Finance LP, Term Loan, First Lien

    5.000%         6/07/19         B+        3,137,780   
  973     

Onex Carestream Finance LP, Term Loan, Second Lien

    9.500%         12/09/19         B–         858,358   
  955     

ConvaTec Healthcare, Term Loan B

    4.250%         6/15/20         N/R        959,352   
  998     

Greatbatch, Inc., Term Loan B

    5.250%         10/14/22         B+        1,002,332   
  2,090     

Kinetic Concepts, Inc., Incremental Term Loan E1

    4.500%         5/04/18         BB–         2,092,082   
  860     

Sterigenics International, Inc., Term Loan B

    4.250%         5/16/22         B1         860,491   
  10,357     

Total Health Care Equipment & Supplies

                               10,101,664   
      Health Care Providers & Services – 6.3% (3.9% of Total Investments)                       
  5     

Community Health Systems, Inc., Term Loan F

    3.750%         12/31/18         BB        4,986   
  523     

Community Health Systems, Inc., Term Loan G

    3.750%         12/31/19         BB        515,871   
  1,046     

Community Health Systems, Inc., Term Loan H

    4.000%         1/27/21         BB        1,032,294   
  2,285     

DaVita HealthCare Partners, Inc., Tranche B, Term Loan

    3.500%         6/24/21         Ba1        2,296,205   
  2,446     

Drumm Investors LLC, Term Loan

    9.500%         5/04/18         B        2,385,201   
  562     

Genesis Healthcare LLC, Term Loan

    11.000%         12/04/17         B–         559,275   
  987     

Healogics, Inc., Term Loan, First Lien

    5.250%         7/01/21         B        935,319   
  1,708     

Heartland Dental Care, Inc., Term Loan, First Lien

    5.500%         12/21/18         B1         1,691,318   
  500     

Heartland Dental Care, Inc., Term Loan, Second Lien

    9.750%         6/21/19         CCC        478,334   
  399     

Kindred Healthcare, Inc., Term Loan B, First Lien

    4.250%         4/09/21         Ba2        397,987   
  767     

LHP Operations Co. LLC, Term Loan B

    9.000%         7/03/18         B2         762,773   
  2,009     

Millennium Laboratories, Inc., Term Loan B, First Lien

    7.500%         12/21/20         N/R        1,566,837   
  591     

National Mentor Holdings, Inc., Term Loan B

    4.250%         1/31/21         B+        590,545   
  1,110     

Quorum Health Corp., Term Loan B , (WI/DD)

    TBD         TBD         B1         1,109,827   
  740     

Select Medical Corporation, Term Loan E, Tranche B, First Lien

    6.000%         6/01/18         Ba2        740,796   
  966     

Select Medical Corporation, Term Loan F, First Lien

    6.000%         3/03/21         Ba2        975,447   
  16,644     

Total Health Care Providers & Services

                               16,043,015   
      Health Care Technology – 0.5% (0.3% of Total Investments)                       
  1,319     

Catalent Pharma Solutions, Inc., Term Loan

    4.250%         5/20/21         BB        1,326,890   
      Hotels, Restaurants & Leisure – 7.1% (4.4% of Total Investments)                       
  3,544     

Burger King Corporation, Term Loan B

    3.750%         12/10/21         Ba3        3,554,029   
  3,163     

CCM Merger, Inc., Term Loan B

    4.500%         8/08/21         BB–         3,178,354   
  1,826     

CityCenter Holdings LLC, Term Loan

    4.250%         10/16/20         BB        1,833,715   
  1,559     

Intrawest Resorts Holdings, Inc., Term Loan B, First Lien

    5.000%         12/09/20         CCC        1,561,896   
  1,489     

Life Time Fitness, Inc., Term Loan B

    4.250%         6/10/22         BB–         1,483,167   
  1,955     

Scientific Games Corporation, Term Loan

    6.000%         10/18/20         BB–         1,930,563   
  1,977     

Scientific Games Corporation, Term Loan B2

    6.000%         10/01/21         BB–         1,953,375   
  904     

Seaworld Parks and Entertainment, Inc., Term Loan B2

    3.000%         5/14/20         BB        884,253   
  1,748     

Station Casino LLC, Term Loan B

    4.250%         3/02/20         B+        1,754,009   
  18,165     

Total Hotels, Restaurants & Leisure

                               18,133,361   

 

Nuveen Investments     3   


NSL    Nuveen Senior Income Fund   
   Portfolio of Investments (continued)    April 30, 2016 (Unaudited)

 

Principal
Amount (000)
    Description (1)   Coupon (4)      Maturity (2)      Ratings (3)      Value  
      Household Durables – 0.2% (0.1% of Total Investments)                       
$ 443     

Serta Simmons Holdings LLC, Term Loan

    4.250%         10/01/19         BB–       $ 444,406   
      Industrial Conglomerates – 0.5% (0.3% of Total Investments)                           
  1,364     

Brand Energy & Infrastructure Services, Inc., Initial Term Loan

    4.750%         11/26/20         B1         1,352,235   
      Insurance – 2.3% (1.4% of Total Investments)                       
  2,322     

Alliant Holdings I LLC, Initial Term Loan B, First Lien

    4.500%         8/12/22         B        2,306,086   
  998     

AssuredPartners Capital, Inc., Term Loan, First Lien

    5.750%         10/21/22         B        996,253   
  2,683     

Hub International Holdings, Inc., Initial Term Loan

    4.250%         10/02/20         Ba3        2,663,233   
  6,003     

Total Insurance

                               5,965,572   
      Internet & Catalog Retail – 1.2% (0.7% of Total Investments)                       
  2,958     

Travelport LLC, Term Loan B, First Lien

    5.750%         9/02/21         B+        2,968,170   
      Internet Software & Services – 2.1% (1.3% of Total Investments)                       
  995     

Ancestry.com, Inc., Term Loan B

    5.000%         8/29/22         Ba3        997,021   
  488     

Sabre Inc., Term Loan B2

    4.000%         2/19/19         Ba2        489,430   
  726     

Sabre Inc., Term Loan

    4.000%         2/19/19         Ba2        728,422   
  116     

Sabre Inc., Term Loan C

    3.500%         2/19/18         Ba2        116,029   
  3,300     

Tibco Software, Inc., Term Loan B

    6.500%         12/04/20         B1         2,994,750   
  5,625     

Total Internet Software & Services

                               5,325,652   
      IT Services – 1.1% (0.7% of Total Investments)                       
  2,061     

EIG Investors Corp., Term Loan, First Lien

    6.480%         11/09/19         B1         1,986,205   
  199     

Mitchell International, Inc., Initial Term Loan B, First Lien

    4.500%         10/13/20         B1         197,771   
  283     

VFH Parent LLC, New Term Loan

    5.250%         11/08/19         N/R        283,421   
  451     

Zayo Group LLC, Term Loan B2

    4.500%         5/06/21         Ba2        454,126   
  2,994     

Total IT Services

                               2,921,523   
      Leisure Products – 1.9% (1.2% of Total Investments)                           
  1,495     

24 Hour Fitness Worldwide, Inc., Term Loan B

    4.750%         5/28/21         Ba3        1,449,675   
  1,736     

Academy, Ltd., Term Loan B

    5.000%         7/01/22         B        1,710,341   
  1,164     

Equinox Holdings, Inc., New Initial Term Loan, First Lien

    5.000%         1/31/20         B1         1,162,589   
  500     

Four Seasons Holdings, Inc., Term Loan, Second Lien

    6.250%         12/27/20         B–         499,583   
  4,895     

Total Leisure Products

                               4,822,188   
      Machinery – 0.4% (0.2% of Total Investments)                           
  494     

Rexnord LLC, Term Loan B

    4.000%         8/21/20         BB–         491,773   
  500     

Vizient, Inc., Term Loan B, First Lien

    6.250%         2/13/23         B1         504,791   
  994     

Total Machinery

                               996,564   
      Marine – 0.3% (0.2% of Total Investments)                           
  750     

American Commercial Lines LLC, Term Loan B, First Lien

    9.750%         11/06/20         B        656,250   
      Media – 12.6% (7.8% of Total Investments)                           
  1,280     

Advantage Sales & Marketing, Inc., Term Loan, First Lien

    4.250%         7/23/21         B1         1,270,296   
  950     

Advantage Sales & Marketing, Inc., Term Loan, Second Lien

    7.500%         7/25/22         CCC+        900,125   
  639     

Affinion Group Holdings, Inc., Initial Term Loan, Second Lien

    8.500%         10/31/18         Caa1        504,647   
  995     

Affinion Group Holdings, Inc., Term Loan, First Lien

    6.750%         4/30/18         B1         878,954   
  1,474     

Catalina Marketing Corporation, Term Loan, First Lien

    4.500%         4/09/21         B1         1,258,214   
  1,000     

Catalina Marketing Corporation, Term Loan, Second Lien

    7.750%         4/11/22         Caa1        637,500   
  3,482     

Cequel Communications LLC, Extended Term Loan

    4.250%         12/14/22         BB–         3,484,909   
  3,000     

Charter Communications Operating Holdings LLC, Term Loan I

    3.500%         1/24/23         BBB–         3,016,338   
  2,111     

Clear Channel Communications, Inc., Term Loan E

    7.935%         7/30/19         Caa1        1,574,954   
  1,500     

Clear Channel Communications, Inc., Tranche D, Term Loan

    7.185%         1/30/19         Caa1        1,122,891   
  6,705     

Cumulus Media, Inc., Term Loan B

    4.250%         12/23/20         B3         4,633,590   
  1,247     

Emerald Expositions Holdings, Inc., Term Loan, First Lien

    4.750%         6/17/20         BB–         1,249,005   
  445     

Gray Television, Inc., Initial Term Loan

    3.938%         6/13/21         BB        446,207   
  983     

IMG Worldwide, Inc., First Lien

    5.250%         5/06/21         B1         983,515   
  750     

Lions Gate Entertainment Corporation, Term Loan B, Second Lien

    5.000%         3/17/22         BB–         735,000   

 

  4      Nuveen Investments


Principal
Amount (000)
    Description (1)   Coupon (4)      Maturity (2)      Ratings (3)      Value  
      Media (continued)                           
$ 1,481     

McGraw-Hill Education Holdings LLC, Term Loan B

    6.250%         3/22/19         B+      $ 1,483,792   
  998     

Numericable Group S.A., Term Loan

    4.750%         2/10/23         B+        1,000,149   
  1,642     

Springer Science & Business Media, Inc., Term Loan B9, First Lien

    4.750%         8/14/20         B1         1,606,621   
  3,790     

Univision Communications, Inc., Replacement Term Loan, First Lien

    4.000%         3/01/20         B+        3,794,513   
  1,294     

WMG Acquisition Corporation, Tranche B, Refinancing Term Loan

    3.750%         7/01/20         B1         1,283,764   
  155     

Yell Group PLC, Term Loan A2

    5.624%         3/01/19         N/R        458,401   
  7     

Yell Group PLC, Term Loan A2, (6)

    1.500%         3/03/19         N/R          
  764     

Yell Group PLC, Term Loan B2, PIK, (6)

    0.000%         3/03/24         N/R          
  36,692     

Total Media

                               32,323,385   
      Metals & Mining – 0.5% (0.3% of Total Investments)                       
  1,470     

Fortescue Metals Group, Ltd., Term Loan B, First Lien, (WI/DD)

    TBD         TBD         BBB–         1,391,171   
      Multiline Retail – 2.2% (1.4% of Total Investments)                           
  990     

Bass Pro Group LLC, Term Loan B, First Lien

    4.000%         6/05/20         BB–         979,481   
  1,500     

Belk, Inc., Term Loan B, First Lien

    5.750%         12/12/22         B+        1,341,562   
  1,824     

Dollar Tree, Inc., Term Loan B1

    3.500%         7/06/22         BBB        1,831,788   
  830     

Dollar Tree, Inc., Term Loan B2

    4.250%         7/06/22         BBB        832,204   
  691     

Hudson’s Bay Company, Term Loan B, First Lien

    4.750%         9/30/22         BB        695,025   
  5,835     

Total Multiline Retail

                               5,680,060   
      Oil, Gas & Consumable Fuels – 1.7% (1.0% of Total Investments)                       
  719     

California Resources Corporation, Term Loan A, First Lien, (WI/DD)

    TBD         TBD         B1         625,312   
  337     

Crestwood Holdings LLC, Term Loan B

    8.619%         6/19/19         B–         301,277   
  2,192     

Energy and Exploration Partners, Term Loan, (5)

    0.000%         1/22/19         N/R        252,062   
  500     

Fieldwood Energy LLC, Term Loan, First Lien, (DD1)

    3.875%         10/01/18         B–         377,500   
  584     

Fieldwood Energy LLC, Term Loan, Second Lien, (DD1)

    8.375%         9/30/20         CCC–         159,864   
  1,753     

Harvey Gulf International Marine, Inc., Term Loan B, (DD1)

    5.500%         6/18/20         B–         1,027,021   
  1,837     

Seadrill Partners LLC, Initial Term Loan

    4.000%         2/21/21         B–         903,407   
  24     

Southcross Holdings Borrower L.P., Term Loan B, First Lien

    3.500%         4/13/23         N/R        23,948   
  558     

Western Refining, Inc., Term Loan B

    4.250%         11/12/20         BB–         551,989   
  8,504     

Total Oil, Gas & Consumable Fuels

                               4,222,380   
      Pharmaceuticals – 5.0% (3.1% of Total Investments)                       
  2,993     

Endo Health Solutions, Inc., Term Loan B

    3.750%         9/26/22         Ba1        2,987,511   
  2,000     

Graceway Pharmaceuticals LLC, Second Lien Term Loan, (5)

    0.000%         5/03/13         N/R        12,500   
  983     

Patheon, Inc., Term Loan B

    4.250%         3/11/21         B1         975,745   
  2,778     

Pharmaceutical Product Development, Inc., Term Loan B, First Lien

    4.250%         8/18/22         B1         2,777,669   
  2,322     

Pharmaceutical Research Associates, Inc., Term Loan

    4.500%         9/23/20         BB–         2,335,536   
  1,304     

Valeant Pharmaceuticals International, Inc., Tranche B, Term Loan E

    4.750%         8/05/20         BB–         1,270,319   
  2,523     

Valeant Pharmaceuticals International, Inc., Tranche B, Term Loan F

    5.000%         4/01/22         Ba2        2,475,983   
  14,903     

Total Pharmaceuticals

                               12,835,263   
      Professional Services – 0.4% (0.3% of Total Investments)                       
  1,167     

Ceridian Corporation, Term Loan B2

    4.500%         9/15/20         Ba3        1,120,630   
      Real Estate Investment Trust – 4.9% (3.0% of Total Investments)                       
  7,541     

Communications Sales & Leasing, Inc., Term Loan B, First Lien

    5.000%         10/24/22         BB+        7,414,829   
  2,425     

Realogy Corporation, Initial Term Loan B

    3.750%         3/05/20         BB+        2,429,591   
  567     

Starwood Property Trust, Inc., Term Loan B

    3.500%         4/17/20         BB        563,603   
  2,342     

Walter Investment Management Corporation, Tranche B, Term Loan, First Lien

    4.750%         12/18/20         BB–         2,059,665   
  12,875     

Total Real Estate Investment Trust

                               12,467,688   
      Real Estate Management & Development – 0.7% (0.5% of Total Investments)                       
  1,861     

Capital Automotive LP, Term Loan, Second Lien

    6.000%         4/30/20         B1         1,868,426   
      Road & Rail – 0.3% (0.2% of Total Investments)                       
  998     

Quality Distribution, Term Loan, First Lien

    5.750%         8/18/22         B1         887,775   

 

Nuveen Investments     5   


NSL    Nuveen Senior Income Fund   
   Portfolio of Investments (continued)    April 30, 2016 (Unaudited)

 

Principal
Amount (000)
    Description (1)   Coupon (4)      Maturity (2)      Ratings (3)      Value  
      Semiconductors & Semiconductor Equipment – 8.4% (5.2% of Total Investments)                       
$ 1,200     

Avago Technologies, Term Loan A

    2.183%         2/01/21         BBB      $ 1,165,876   
  11,500     

Avago Technologies, Term Loan B, First Lien

    4.250%         2/01/23         BBB        11,527,956   
  1,000     

Micron Technology, Inc., Term Loan B, First Lien, (WI/DD)

    TBD         TBD         Baa2        1,006,875   
  2,557     

Microsemi Corporation, Term Loan B, First Lien

    5.250%         1/16/23         Ba2        2,578,794   
  1,995     

NXP Semiconductor LLC, Term Loan B, First Lien

    3.750%         12/07/20         BBB–         2,004,353   
  961     

NXP Semiconductor LLC, Term Loan D

    3.250%         1/11/20         BBB–         961,268   
  2,250     

On Semiconductor Corp., Term Loan B, First Lien

    5.250%         3/31/23         Ba1        2,264,906   
  21,463     

Total Semiconductors & Semiconductor Equipment

                               21,510,028   
      Software – 10.3% (6.4% of Total Investments)                       
  1,170     

Blackboard, Inc., Term Loan B3

    4.750%         10/04/18         B+        1,101,294   
  2,075     

BMC Software, Inc., Initial Term Loan

    5.000%         9/10/20         B1         1,797,056   
  998     

Computer Sciences Government Services, Term Loan B, First Lien

    3.750%         11/28/22         BB+        1,002,020   
  2,424     

Compuware Corporation, Tranche B2, Term Loan, First Lien

    6.250%         12/15/21         B        2,345,985   
  750     

Compuware Corporation, Term Loan, Second Lien, (WI/DD)

    TBD         TBD         CCC+        649,063   
  1,743     

Ellucian, Term Loan B, First Lien

    4.750%         9/30/22         B        1,742,990   
  1,037     

Emdeon Business Services LLC, Term Loan B2

    3.750%         11/02/18         Ba3        1,036,182   
  5,915     

Infor Global Solutions Intermediate Holdings, Ltd., Term Loan B5

    3.750%         6/03/20         B+        5,791,023   
  995     

Informatica Corp., Term Loan B

    4.250%         8/05/22         B        983,288   
  785     

Micro Focus International PLC, Term Loan B

    5.250%         11/19/21         BB–         785,314   
  1,215     

Micro Focus International PLC, Term Loan C

    4.500%         11/20/19         BB–         1,213,481   
  3,378     

Misys PLC, Term Loan B, First Lien

    5.000%         12/12/18         B+        3,391,328   
  696     

MSC Software Corporation, Initial Term Loan, First Lien

    5.000%         5/29/20         B1         667,901   
  1,401     

SS&C Technologies, Inc./ Sunshine Acquisition II, Inc., Term Loan B1

    4.007%         7/08/22         BB        1,407,312   
  200     

SS&C Technologies, Inc./ Sunshine Acquisition II, Inc., Term Loan B2

    4.019%         7/08/22         BB        200,502   
  946     

Vertafore, Inc., Term Loan, First Lien

    4.250%         10/03/19         B+        948,989   
  1,244     

Zebra Technologies Corporation, Term Loan B, First Lien

    4.750%         10/27/21         BB+        1,254,687   
  26,972     

Total Software

                               26,318,415   
      Specialty Retail – 2.4% (1.5% of Total Investments)                       
  500     

Gardner Denver, Inc., Term Loan, (WI/DD)

    TBD         TBD         B1         470,000   
  1,556     

Jo-Ann Stores, Inc., Term Loan, First Lien

    4.000%         3/16/18         Ba3        1,541,341   
  2,845     

Petco Animal Supplies, Inc., Term Loan B1

    5.750%         1/26/23         B1         2,865,548   
  1,337     

Petsmart, Inc., Term Loan B

    4.250%         3/11/22         BB–         1,333,842   
  6,238     

Total Specialty Retail

                               6,210,731   
      Technology Hardware, Storage & Peripherals – 5.4% (3.3% of Total Investments)                       
  8,821     

Dell, Inc., Term Loan B2

    4.000%         4/29/20         BBB        8,824,707   
  5,000     

Western Digital, Inc., Term Loan B, First Lien, (WI/DD)

    TBD         TBD         BBB–         4,928,125   
  13,821     

Total Technology Hardware, Storage & Peripherals

                               13,752,832   
      Textiles, Apparel & Luxury Goods – 0.3% (0.2% of Total Investments)                       
  500     

Gymboree Corporation, Term Loan, (WI/DD)

    TBD         TBD         B3         388,437   
  598     

J Crew Group, Term Loan B, First Lien, (WI/DD)

    TBD         TBD         B2         478,992   
  1,098     

Total Textiles, Apparel & Luxury Goods

                               867,429   
      Trading Companies & Distributors – 1.5% (0.9% of Total Investments)                       
  3,090     

HD Supply, Inc., Term Loan B

    3.750%         8/13/21         BB        3,092,868   
  827     

Neff Rental/Neff Finance Closing Date Loan, Second Lien

    7.250%         6/09/21         B–         773,451   
  3,917     

Total Trading Companies & Distributors

                               3,866,319   
      Transportation Infrastructure – 0.5% (0.3% of Total Investments)                       
  66     

Ceva Group PLC, Canadian Term Loan

    6.500%         3/19/21         B2         58,130   
  529     

Ceva Group PLC, US Term Loan

    6.500%         3/19/21         B2         465,041   
  371     

Ceva Group PLC, Synthetic Letter of Credit Term Loan

    6.500%         3/19/21         B2         326,232   
  384     

Ceva Group PLC, Dutch B.V., Term Loan

    6.500%         3/19/21         B2         337,154   
  1,350     

Total Transportation Infrastructure

                               1,186,557   
      Wireless Telecommunication Services – 2.1% (1.3% of Total Investments)                       
  856     

Asurion LLC, Term Loan B4, First Lien

    5.000%         8/04/22         Ba3        851,553   

 

  6      Nuveen Investments


Principal
Amount (000)
    Description (1)   Coupon (4)      Maturity (2)      Ratings (3)      Value  
      Wireless Telecommunication Services (continued)                       
$ 834     

Asurion LLC, Term Loan B1

    5.000%         5/24/19         Ba3      $ 833,662   
  2,951     

Fairpoint Communications, Inc., Term Loan B

    7.500%         2/14/19         B        2,947,032   
  673     

T-Mobile USA, Term Loan B

    3.500%         11/09/22         BBB–         678,110   
  5,314     

Total Wireless Telecommunication Services

                               5,310,357   
$ 365,575     

Total Variable Rate Senior Loan Interests (cost $363,176,502)

                               346,478,575   
Shares     Description (1)                           Value  
 

COMMON STOCKS – 1.9% (1.2% of Total Investments)

  

  
      Banks – 0.8% (0.5% of Total Investments)         
  36,577     

BLB Worldwide Holdings Inc., (7), (8)

                             $ 1,993,446   
      Diversified Consumer Services – 0.4% (0.3% of Total Investments)         
  53,514     

Cengage Learning Holdings II LP, (7), (8)

             1,016,766   
  1,562,493     

Education Management Corporation, (7), (8)

                               156   
 

Total Diversified Consumer Services

                               1,016,922   
      Energy Equipment & Services – 0.1% (0.0% of Total Investments)         
  1,961     

Vantage Drill International, (7), (8)

                               186,295   
      Health Care Providers & Services – 0.1% (0.1% of Total Investments)         
  58,830     

Millennium Health LLC, (7), (8)

                               382,395   
      Media – 0.5% (0.3% of Total Investments)  
  3,479     

Cumulus Media, Inc., (8)

             1,293   
  6,268     

Metro-Goldwyn-Mayer, (7), (8)

             501,440   
  18,422     

Tribune Media Company

             710,168   
  14,825     

Tribune Media Company, (6)

               
  4,605     

Tribune Publishing Company

                               52,175   
 

Total Media

                               1,265,076   
      Oil, Gas & Consumable Fuels – 0.0% (0.0% of Total Investments)         
  27     

Southcross Holdings Borrower LP, (7), (8)

                               6,750   
      Professional Services – 0.0% (0.0% of Total Investments)                       
  47,152     

Vertrue, Inc., (7), (8)

                               84,874   
      Software – 0.0% (0.0% of Total Investments)                       
  291,294     

Eagle Topco LP, (6), (8)

                                 
 

Total Common Stocks (cost $5,575,604)

                               4,935,758   
Shares     Description (1)   Coupon              Ratings (3)      Value  
 

$25 PAR (OR SIMILAR) RETAIL PREFERRED – 0.0% (0.0% of Total Investments)

  

  
      Diversified Consumer Services – 0.0% (0.0% of Total Investments)         
  1,738     

Education Management Corporation, (7)

    7.500%                  N/R      $ 3,476   
 

Total $25 Par (or similar) Retail Preferred (cost $4,219)

                               3,476   
Principal
Amount (000)
    Description (1)   Coupon      Maturity      Ratings (3)      Value  
 

CORPORATE BONDS – 16.1% (10.0% of Total Investments)

  

  
      Commercial Services & Supplies – 0.5% (0.3% of Total Investments)         
$ 1,233     

NES Rental Holdings Inc., 144A

    7.875%         5/01/18         B–       $ 1,177,515   
      Communications Equipment – 0.2% (0.1% of Total Investments)                       
  3,125     

Avaya Inc., 144A

    10.500%         3/01/21         Caa2        625,000   

 

Nuveen Investments     7   


NSL    Nuveen Senior Income Fund   
   Portfolio of Investments (continued)    April 30, 2016 (Unaudited)

 

Principal
Amount (000)
    Description (1)   Coupon      Maturity      Ratings (3)      Value  
      Containers & Packaging – 0.3% (0.2% of Total Investments)                       
$ 776     

Reynolds Group

    9.875%         8/15/19         CCC+      $ 802,190   
      Diversified Telecommunication Services – 2.1% (1.3% of Total Investments)                       
  600     

Frontier Communications Corporation, 144A

    8.875%         9/15/20         BB        635,250   
  1,585     

Frontier Communications Corporation

    6.250%         9/15/21         BB        1,474,050   
  1,350     

Frontier Communications Corporation

    6.875%         1/15/25         BB        1,123,875   
  215     

IntelSat Limited

    6.750%         6/01/18         CC        166,087   
  3,050     

IntelSat Limited

    7.750%         6/01/21         CC        1,021,750   
  2,650     

IntelSat Limited

    8.125%         6/01/23         CC        867,875   
  9,450     

Total Diversified Telecommunication Services

                               5,288,887   
      Health Care Equipment & Supplies – 3.7% (2.3% of Total Investments)                
  2,025     

Kinetic Concepts

    10.500%         11/01/18         B–         2,046,566   
  1,000     

Kinetic Concepts

    12.500%         11/01/19         CCC+        960,000   
  3,500     

Tenet Healthcare Corporation

    6.000%         10/01/20         Ba2        3,710,000   
  1,100     

Tenet Healthcare Corporation

    8.125%         4/01/22         B3         1,141,250   
  1,560     

Tenet Healthcare Corporation

    6.750%         6/15/23         B3         1,548,300   
  9,185     

Total Health Care Equipment & Supplies

                               9,406,116   
      Health Care Providers & Services – 2.1% (1.3% of Total Investments)         
  1,000     

Community Health Systems, Inc.

    8.000%         11/15/19         B+        1,006,250   
  1,020     

Community Health Systems, Inc.

    5.125%         8/01/21         BB        1,022,968   
  2,400     

Community Health Systems, Inc.

    6.875%         2/01/22         B+        2,182,500   
  600     

IASIS Healthcare Capital Corporation

    8.375%         5/15/19         CCC+        573,000   
  750     

Select Medical Corporation

    6.375%         6/01/21         B–         711,563   
  5,770     

Total Health Care Providers & Services

                               5,496,281   
      Hotels, Restaurants & Leisure – 0.5% (0.3% of Total Investments)                
  1,550     

Scientific Games International Inc.

    10.000%         12/01/22         B        1,281,075   
      Media – 3.0% (1.9% of Total Investments)                       
  100     

CCO Safari II LLC, 144A

    3.579%         7/23/20         BBB–         103,850   
  1,524     

Clear Channel Communications, Inc.

    10.000%         1/15/18         CC        601,980   
  2,872     

Clear Channel Communications, Inc.

    9.000%         12/15/19         Caa1        2,225,800   
  6,468     

Clear Channel Communications, Inc.

    14.000%         2/01/21         CC        1,762,445   
  3,050     

Clear Channel Communications, Inc.

    9.000%         3/01/21         Caa1        2,157,875   
  1,000     

Dish DBS Corporation

    5.875%         11/15/24         BB–         938,750   
  15,014     

Total Media

                               7,790,700   
      Real Estate Investment Trust – 0.3% (0.2% of Total Investments)         
  750     

iStar Inc.

    4.000%         11/01/17         B+        738,750   
      Semiconductors & Semiconductor Equipment – 0.7% (0.4% of Total Investments)  
  1,075     

Advanced Micro Devices, Inc.

    7.750%         8/01/20         CCC        860,000   
  1,200     

Advanced Micro Devices, Inc.

    7.500%         8/15/22         CCC        921,000   
  2,275     

Total Semiconductors & Semiconductor Equipment

                               1,781,000   
      Software – 0.6% (0.4% of Total Investments)         
  1,330     

BMC Software Finance Inc., 144A

    8.125%         7/15/21         CCC+        984,200   
  700     

Boxer Parent Company Inc./BMC Software, 144A

    9.000%         10/15/19         CCC+        514,500   
  2,030     

Total Software

                               1,498,700   
      Wireless Telecommunication Services – 2.1% (1.3% of Total Investments)         
  500     

FairPoint Communications Inc., 144A

    8.750%         8/15/19         B        472,500   
  1,000     

Sprint Capital Corporation

    6.900%         5/01/19         B+        915,000   
  500     

Sprint Corporation

    7.875%         9/15/23         B+        390,000   
  2,000     

Sprint Corporation

    7.125%         6/15/24         B+        1,500,000   

 

  8      Nuveen Investments


Principal
Amount (000)
    Description (1)   Coupon      Maturity      Ratings (3)      Value  
      Wireless Telecommunication Services (continued)                       
$ 1,750     

T-Mobile USA Inc.

    6.250%         4/01/21         BB      $ 1,824,375   
  75     

T-Mobile USA Inc.

    6.731%         4/28/22         BB        79,049   
  75     

T-Mobile USA Inc.

    6.836%         4/28/23         BB        79,969   
  5,900     

Total Wireless Telecommunication Services

                               5,260,893   
$ 57,058     

Total Corporate Bonds (cost $55,043,348)

                               41,147,107   
 

Total Long-Term Investments (cost $423,799,673)

                               392,564,916   
Principal
Amount (000)
    Description (1)   Coupon      Maturity              Value  
 

SHORT-TERM INVESTMENTS – 7.8% (4.8% of Total Investments)

          
      REPURCHASE AGREEMENTS – 7.8% (4.8% of Total Investments)                           
$ 19,963     

Repurchase Agreement with Fixed Income Clearing Corporation,
dated 4/29/16, repurchase price $19,963,224,
collateralized by $19,120,000 U.S. Treasury Notes,
2.500%, due 8/15/23, value $20,362,800

    0.030%         5/02/16                $ 19,963,174   
 

Total Short-Term Investments (cost $19,963,174)

                               19,963,174   
 

Total Investments (cost $443,762,847) – 161.3%

                               412,528,090   
 

Borrowings – (39.5)% (9), (10)

                               (101,000,000
 

Variable Rate Term Preferred Shares, at Liquidation Preference – (17.6)% (11)

  

     (45,000,000
 

Other Assets Less Liabilities – (4.2)%

                               (10,788,743
 

Net Assets Applicable to Common Shares – 100%

                             $ 255,739,347   

Fair Value Measurements

Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. A three-tier hierarchy is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.

 

Level 1 –   Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.
Level 2 –   Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.).
Level 3 –   Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).

The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:

 

      Level 1      Level 2      Level 3      Total  

Long-Term Investments:

           

Variable Rate Senior Loan Interests

   $       $ 346,478,575       $   —    $ 346,478,575   

Common Stocks

     763,636         4,172,122              4,935,758   

$25 Par (or similar) Retail Preferred

             3,476                 3,476   

Corporate Bonds

             41,147,107                 41,147,107   

Short-Term Investments:

           

Repurchase Agreements

             19,963,174                 19,963,174   

Total

   $ 763,636       $ 411,764,454       $       $ 412,528,090   
* Value equals zero as of the end of the reporting period.

 

Nuveen Investments     9   


NSL    Nuveen Senior Income Fund   
   Portfolio of Investments (continued)    April 30, 2016 (Unaudited)

 

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 timing differences in recognizing certain gains and losses on investment transactions. 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.

As of April 30, 2016, the cost of investments was $443,776,683.

Gross unrealized appreciation and gross unrealized depreciation of investments as of April 30, 2016, were as follows:

 

Gross unrealized:

          

Appreciation

     $ 5,055,941   

Depreciation

       (36,304,534

Net unrealized appreciation (depreciation) of investments

     $ (31,248,593

 

For Fund portfolio compliance purposes, the Fund’s industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Fund management. This definition may not apply for purposes of this report, which may combine industry sub-classifications into sectors for reporting ease.

 

(1) All percentages shown in the Portfolio of Investments are based on net assets applicable to common shares unless otherwise noted.

 

(2) Senior Loans generally are subject to mandatory and/or optional prepayment. Because of these mandatory prepayment conditions and because there may be significant economic incentives for a borrower to prepay, prepayments of senior loans may occur. As a result, the actual remaining maturity of senior loans held may be substantially less than the stated maturities shown.

 

(3) Ratings: Using the highest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of these national rating agencies.

 

(4) Senior loans generally pay interest at rates which are periodically adjusted by reference to a base short-term, floating lending rate plus an assigned fixed rate. These floating lending rates are generally (i) the lending rate referenced by the London Inter-Bank Offered Rate (“LIBOR”), or (ii) the prime rate offered by one or more major United States banks. Senior loans may be considered restricted in that the Fund ordinarily is contractually obligated to receive approval from the agent bank and/or borrower prior to the disposition of a senior loan. The rate shown is the coupon as of the end of the reporting period.

 

(5) As of, or subsequent to, the end of the reporting period, this security is non-income producing. Non-income producing, in the case of a fixed-income security, generally denotes that the issuer has (1) defaulted on the payment of principal or interest, (2) is under the protection of the Federal Bankruptcy Court or (3) the Fund’s Adviser has concluded that the issue is not likely to meet its future interest payment obligations and has ceased accruing additional income on the Fund’s records.

 

(6) Investment valued at fair value using methods determined in good faith by, or at the discretion of, the Board. For fair value measurement disclosure purposes, investment classified as Level 3.

 

(7) For fair value measurement disclosure purposes, investment classified as Level 2.

 

(8) Non-income producing; issuer has not declared a dividend within the past twelve months.

 

(9) Borrowings as a percentage of Total Investments is 24.5%.

 

(10) The Fund segregates 100% of its eligible investments (excluding any investments separately pledged as collateral for specific investments in derivatives, when applicable) as collateral for borrowings.

 

(11) Variable Rate Term Preferred Shares, at Liquidation Preference as a percentage of Total Investments is 10.9%.

 

(DD1) Portion of investment purchased on a delayed delivery basis.

 

(WI/DD) Purchased on a when-issued or delayed delivery basis.

 

144A Investment is exempt from registration under Rule 144A of the Securities Act of 1933, as amended. These investments may only be resold in transactions exempt from registration, which are normally those transactions with qualified institutional buyers.

 

TBD Senior loan purchased on a when-issued or delayed-delivery basis. Certain details associated with this purchase are not known prior to the settlement date of the transaction. In addition, senior loans typically trade without accrued interest and therefore a weighted average coupon rate is not available prior to settlement. At settlement, if still unknown, the borrower or counterparty will provide the Fund with the final weighted average coupon rate and maturity date.

 

  10      Nuveen Investments


Item 2. Controls and Procedures.

 

  a. The registrant’s principal executive and principal financial officers, or persons performing similar functions, have concluded that the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the “1940 Act”) (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)).

 

  b. There were no changes in the registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (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 Senior Income Fund   
By (Signature and Title)    /s/ Kevin J. McCarthy                                                               
   Kevin J. McCarthy   
   Vice President and Secretary   

Date: June 29, 2016

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: June 29, 2016      
By (Signature and Title)    /s/ Stephen D. Foy                                                                    
   Stephen D. Foy   
   Vice President and Controller (principal financial officer)   
Date: June 29, 2016