Northwestern Investment Management Company

Northwestern Investment Management Company as of Dec. 31, 2010

Portfolio Holdings for Northwestern Investment Management Company

Northwestern Investment Management Company holds 119 positions in its portfolio as reported in the December 2010 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Marshall & Ilsley Corporation 5.8 $89M 13M 6.92
Magellan Midstream Partners 4.2 $65M 1.1M 56.50
Rosetta Resources 3.7 $57M 1.5M 37.64
Enterprise Products Partners (EPD) 3.7 $56M 1.4M 41.61
NuStar GP Holdings 3.2 $50M 1.4M 36.33
STR Holdings 2.8 $43M 2.1M 20.00
Pioneer Nat Res Co note 2.875% 1/1 2.6 $41M 41M 0.99
Peabody Energy Corp sdcv 4.750%12/1 2.5 $39M 39M 1.01
Transocean Inc note 1.500%12/1 2.5 $39M 41M 0.94
Energy Transfer Equity (ET) 2.1 $33M 841k 39.07
Chesapeake Midstream Partners 2.1 $32M 1.1M 28.77
El Paso Pipeline Partners 1.9 $30M 884k 33.45
Cal Dive Intl Inc note 3.250%12/1 1.9 $29M 34M 0.83
Liberty Media Corp New deb 3.125% 3/3 1.8 $28M 28M 1.02
Apache Corporation 1.8 $28M 233k 119.23
NewStar Financial 1.7 $27M 2.5M 10.57
Targa Res Corp (TRGP) 1.7 $26M 967k 26.81
Hologic Inc frnt 2.000%12/1 1.6 $24M 28M 0.87
Wells Fargo & Company Non-cum Perpet cnv (WFC.PL) 1.6 $24M 25k 966.65
Williams Partners 1.5 $23M 484k 46.65
Equinix Inc note 4.750% 6/1 1.5 $22M 19M 1.21
St Mary Ld & Expl Co note 3.500% 4/0 1.3 $20M 24M 0.84
Plains All American Pipeline (PAA) 1.2 $19M 305k 62.79
General Cable Corp Del New frnt 4.500% 11/1 1.2 $19M 18M 1.06
Targa Resources Partners 1.2 $19M 550k 33.96
Dcp Midstream Partners 1.2 $18M 474k 37.40
Greatbatch Inc sdcv 2.250% 6/1 1.1 $17M 19M 0.92
Regency Energy Partners 1.1 $17M 625k 27.26
Chesapeake Energy Corp note 2.500% 5/1 1.1 $17M 24M 0.68
Omnicare Inc note 3.750%12/1 1.0 $16M 15M 1.04
Enbridge Energy Partners 1.0 $16M 248k 62.38
General Mtrs Co jr pfd cnv srb 1.0 $16M 300k 51.88
Affiliated Managers Group note 3.950% 8/1 1.0 $15M 18M 0.88
Salix Pharmaceuticals Inc note 2.750% 5/1 1.0 $15M 14M 1.06
Ford Mtr Co Del note 4.250%11/1 0.9 $15M 7.4M 1.98
Crosstex Energy 0.9 $14M 1.0M 14.40
INC Sealy Corp 0.9 $14M 270k 52.95
GAME Technolog debt 0.9 $14M 13M 1.13
Penn Va Corp note 4.500%11/1 0.9 $14M 16M 0.87
BreitBurn Energy Partners 0.9 $13M 657k 20.14
Linn Energy 0.8 $13M 347k 37.49
Omnicare Inc dbcv 3.250%12/1 0.8 $13M 15M 0.87
Delta Air Lines (DAL) 0.8 $13M 1.0M 12.60
E M C Corp Mass note 1.750%12/0 0.8 $12M 8.7M 1.36
Massey Energy Co note 3.250% 8/0 0.8 $12M 16M 0.76
Cameron International Corp note 2.500% 6/1 0.8 $12M 10M 1.11
Chesapeake Energy Corp note 2.500% 5/1 0.7 $11M 15M 0.77
Lifepoint Hospitals Inc sdcv 3.250% 8/1 0.7 $11M 13M 0.86
Interpublic Group Cos Inc note 4.750% 3/1 0.7 $11M 12M 0.91
Microchip Technology Inc sdcv 2.125%12/1 0.7 $11M 11M 0.98
Ppl Corp unit 99/99/9999 0.7 $11M 205k 51.65
Western Gas Partners 0.7 $10M 336k 30.30
Advanced Micro Devices Inc note 5.750% 8/1 0.7 $10M 10M 1.00
Micron Technology Inc note 1.875% 6/0 0.6 $9.7M 11M 0.92
Providence Svc Corp note 6.500% 5/1 0.6 $9.2M 10M 0.88
Alliance Data Systems Corp note 1.750% 8/0 0.6 $9.1M 10M 0.88
Spectra Energy Partners 0.6 $9.0M 275k 32.85
Vale Cap Ii valep 6.75%12 0.6 $8.9M 100k 89.45
Core Laboratories Lp note 0.250%10/3 0.6 $8.8M 8.5M 1.03
Select Medical Holdings Corporation (SEM) 0.6 $8.6M 1.2M 7.31
Horsehead Holding 0.5 $8.3M 640k 13.04
QEP Resources 0.5 $8.3M 227k 36.31
Thq Inc note 5.000% 8/1 0.5 $8.3M 8.9M 0.93
Petrohawk Energy Corporation 0.5 $8.2M 448k 18.25
Cephalon Inc note 2.500% 5/0 0.5 $8.0M 7.5M 1.07
American Med Sys Hldgs Inc note 4.000% 9/1 0.5 $7.8M 7.8M 1.01
Lucent Technologies Inc dbcv 2.875% 6/1 0.5 $7.8M 11M 0.71
Teva Pharmaceutical Fin Co B note 1.750% 2/0 0.5 $7.6M 7.5M 1.01
School Specialty Inc sdcv 3.750%11/3 0.5 $7.1M 8.5M 0.83
Mylan Inc note 3.750% 9/1 0.5 $7.0M 4.0M 1.75
Viropharma Inc note 2.000% 3/1 0.4 $6.7M 7.0M 0.96
Live Nation Entertainment In note 2.875% 7/1 0.4 $6.3M 7.4M 0.85
Albany Intl Corp note 2.250% 3/1 0.4 $6.3M 6.3M 1.00
Coinstar Inc note 4.000% 9/0 0.4 $6.3M 5.9M 1.07
Euronet Worldwide Inc note 3.500%10/1 0.4 $6.2M 6.6M 0.94
Sealy Corporation 0.4 $5.8M 2.0M 2.92
Group 1 Automotive Inc frnt 2.250% 6/1 0.4 $5.5M 7.0M 0.78
Intel Corp sdcv 0.3 $5.3M 5.2M 1.02
Alpha Natural Resources Inc note 2.375% 4/1 0.3 $5.3M 6.0M 0.88
Envestnet (ENV) 0.3 $5.3M 309k 17.06
Ja Solar Holdings Co Ltd note 4.500% 5/1 0.3 $5.0M 5.0M 1.00
Stanley Black & Decker Inc unit 99/99/9999 0.3 $5.1M 50k 102.42
Teleflex Inc note 3.875% 8/0 0.3 $5.0M 5.0M 1.00
D Otelco Inc unit 99/99/9999 0.3 $4.1M 225k 18.18
Questar Corporation 0.3 $4.0M 227k 17.41
Sandisk Corp note 1.500% 8/1 0.3 $4.0M 4.0M 1.01
Rti Intl Metals Inc note 3.000%12/0 0.3 $4.0M 4.0M 1.00
RF MICRO DEVICE CONVERTIBLE security 0.3 $4.0M 5.0M 0.80
Mannkind Corp note 3.750%12/1 0.2 $3.8M 5.3M 0.72
Bristow Group Inc note 3.000% 6/1 0.2 $3.6M 4.3M 0.85
Arris Group Inc note 2.000%11/1 0.2 $3.1M 3.0M 1.02
Thoratec Corp note 1.379% 5/1 0.2 $3.0M 4.0M 0.76
Prologis debt 0.2 $3.0M 4.0M 0.75
CUBIST PHARM CONVERTIBLE security 0.2 $3.0M 3.0M 1.00
Penn Virginia Corporation 0.2 $2.8M 169k 16.82
Molina Healthcare Inc note 3.750%10/0 0.1 $2.3M 3.0M 0.77
Evergreen Solar Inc note 4.000% 7/1 0.1 $2.4M 5.5M 0.43
Amylin Pharmaceuticals Inc note 3.000% 6/1 0.1 $2.2M 2.5M 0.86
Sterlite Inds India Ltd note 4.000%10/3 0.1 $2.0M 2.0M 1.00
Kendle International Inc note 3.375% 7/1 0.1 $1.8M 2.0M 0.91
Ciena Corp note 0.875% 6/1 0.1 $1.5M 1.5M 1.00
Synovus Finl Corp unit 99/99/9999 0.1 $972k 40k 24.30
Bank Of America Corporation preferred (BAC.PL) 0.1 $766k 800.00 957.50
PostRock Energy Corporation 0.1 $768k 204k 3.76
Titan International (TWI) 0.0 $561k 29k 19.55
B&G Foods (BGS) 0.0 $687k 50k 13.74
Goodrich Pete Corp note 3.250%12/0 0.0 $495k 500k 0.99
Carnival Corp dbcv 4/2 0.0 $376k 570k 0.66
Teva Pharmaceutical Industries (TEVA) 0.0 $350k 6.7k 52.17
Great Plains Energy Incorporated 0.0 $337k 17k 19.37
Google 0.0 $251k 423.00 593.38
Frontier Communications 0.0 $366k 38k 9.73
Southern Union Company 0.0 $361k 15k 24.07
Sunpower Corp dbcv 1.250% 2/1 0.0 $141k 150k 0.94
IAC/InterActive 0.0 $134k 4.7k 28.60
Armstrong World Industries (AWI) 0.0 $116k 2.7k 43.11
MedAssets 0.0 $99k 4.9k 20.21
Tesla Motors (TSLA) 0.0 $221k 8.3k 26.60
Live Nation Entertainment (LYV) 0.0 $32k 2.8k 11.59