Northwestern Investment Management Company

Northwestern Investment Management Company as of March 31, 2011

Portfolio Holdings for Northwestern Investment Management Company

Northwestern Investment Management Company holds 110 positions in its portfolio as reported in the March 2011 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Magellan Midstream Partners 4.1 $59M 978k 59.86
Enterprise Products Partners (EPD) 3.7 $54M 1.3M 43.06
Marshall & Ilsley Corporation 3.6 $51M 6.4M 7.99
El Paso Pipeline Partners 2.9 $41M 1.1M 36.23
Pioneer Nat Res Co note 2.875% 1/1 2.8 $40M 40M 0.99
Peabody Energy Corp sdcv 4.750%12/1 2.7 $39M 39M 1.01
Targa Res Corp (TRGP) 2.7 $39M 1.1M 36.24
Transocean Inc note 1.500%12/1 2.7 $38M 41M 0.94
Energy Transfer Equity (ET) 2.6 $38M 841k 45.00
Rosetta Resources 2.4 $35M 725k 47.59
NuStar GP Holdings 2.3 $33M 903k 36.45
Chesapeake Midstream Partners 2.2 $32M 1.1M 28.83
Apache Corporation 2.1 $31M 233k 130.92
Cal Dive Intl Inc note 3.250%12/1 2.0 $28M 34M 0.82
Liberty Media Corp New deb 3.125% 3/3 1.9 $28M 28M 1.02
NewStar Financial 1.9 $28M 2.5M 10.92
Metlife Inc 5% 10/0/14 Conv Pr cv prf 1.8 $26M 306k 83.30
Williams Partners 1.7 $25M 484k 51.80
Western Gas Partners 1.7 $25M 700k 34.93
Wells Fargo & Company Non-cum Perpet cnv (WFC.PL) 1.7 $24M 25k 967.17
PAA Natural Gas Storage 1.6 $24M 1.0M 23.54
Equinix Inc note 4.750% 6/1 1.6 $22M 19M 1.20
Buckeye Partners 1.5 $21M 331k 63.54
St Mary Ld & Expl Co note 3.500% 4/0 1.4 $20M 24M 0.84
Hologic Inc frnt 2.000%12/1 1.4 $19M 23M 0.85
General Cable Corp Del New frnt 4.500% 11/1 1.3 $19M 18M 1.07
Apache Corp. 6% Mandatory Conv pfd cv 1.2 $18M 335k 53.65
Regency Energy Partners 1.2 $17M 625k 27.31
Crosstex Energy 1.2 $17M 1.0M 16.92
Salix Pharmaceuticals Inc note 2.750% 5/1 1.2 $17M 16M 1.05
Chesapeake Energy Corp note 2.500% 5/1 1.2 $17M 24M 0.69
Massey Energy Co note 3.250% 8/0 1.1 $16M 19M 0.84
Omnicare Inc note 3.750%12/1 1.1 $16M 15M 1.04
Affiliated Managers Group note 3.950% 8/1 1.1 $15M 18M 0.88
General Mtrs Co jr pfd cnv srb 1.0 $15M 300k 48.20
Ford Mtr Co Del note 4.250%11/1 1.0 $14M 7.4M 1.93
INC Sealy Corp 1.0 $14M 270k 52.95
Penn Va Corp note 4.500%11/1 1.0 $14M 16M 0.88
GAME Technolog debt 1.0 $14M 13M 1.12
Linn Energy 0.9 $14M 347k 38.93
Omnicare Inc dbcv 3.250%12/1 0.9 $13M 15M 0.87
E M C Corp Mass note 1.750%12/0 0.8 $12M 8.7M 1.34
Cameron International Corp note 2.500% 6/1 0.8 $11M 10M 1.07
BreitBurn Energy Partners 0.8 $11M 500k 21.73
Petrohawk Energy Corporation 0.8 $11M 448k 24.54
Interpublic Group Cos Inc note 4.750% 3/1 0.8 $11M 12M 0.91
Horsehead Holding 0.8 $11M 640k 17.05
Microchip Technology Inc sdcv 2.125%12/1 0.8 $11M 11M 0.98
Dcp Midstream Partners 0.7 $11M 264k 40.50
Ppl Corp unit 99/99/9999 0.7 $11M 205k 51.60
Dendreon Corp note 0.7 $11M 11M 1.00
Delta Air Lines (DAL) 0.7 $10M 1.0M 9.80
Micron Technology Inc note 1.875% 6/0 0.7 $9.8M 11M 0.93
Select Medical Holdings Corporation (SEM) 0.7 $9.4M 1.2M 8.06
Greatbatch Inc sdcv 2.250% 6/1 0.7 $9.3M 10M 0.91
Alliance Data Systems Corp note 1.750% 8/0 0.6 $9.2M 10M 0.89
Providence Svc Corp note 6.500% 5/1 0.6 $9.3M 10M 0.89
QEP Resources 0.6 $9.2M 227k 40.54
Spectra Energy Partners 0.6 $9.0M 275k 32.87
Gsi Commerce Inc note 2.500% 6/0 0.6 $8.9M 8.6M 1.03
Coinstar Inc note 4.000% 9/0 0.6 $8.9M 7.9M 1.13
Vale Cap Ii valep 6.75%12 0.6 $8.9M 100k 89.34
Core Laboratories Lp note 0.250%10/3 0.6 $8.8M 8.5M 1.03
Arvinmeritor Inc frnt 4.000% 2/1 0.6 $8.6M 8.0M 1.08
Thq Inc note 5.000% 8/1 0.6 $8.3M 8.9M 0.93
American Med Sys Hldgs Inc note 4.000% 9/1 0.6 $7.8M 7.8M 1.01
Netapp Inc note 1.750% 6/0 0.6 $7.9M 5.0M 1.57
Viropharma Inc note 2.000% 3/1 0.5 $6.9M 7.0M 0.98
Mylan Inc note 3.750% 9/1 0.5 $6.8M 4.0M 1.70
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
Group 1 Automotive Inc frnt 2.250% 6/1 0.4 $5.5M 7.0M 0.78
Intel Corp sdcv 0.4 $5.4M 5.2M 1.03
Stanley Black & Decker Inc unit 99/99/9999 0.4 $5.1M 50k 102.92
Advanced Micro Devices Inc note 5.750% 8/1 0.3 $5.1M 5.0M 1.01
Ja Solar Holdings Co Ltd note 4.500% 5/1 0.3 $5.0M 5.0M 1.00
Sealy Corporation 0.3 $5.0M 2.0M 2.54
Teleflex Inc note 3.875% 8/0 0.3 $5.1M 5.0M 1.01
MarkWest Energy Partners 0.3 $4.5M 93k 48.47
D Otelco Inc unit 99/99/9999 0.3 $4.4M 225k 19.38
Envestnet (ENV) 0.3 $4.2M 309k 13.44
Questar Corporation 0.3 $4.0M 227k 17.45
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 1.01
RF MICRO DEVICE CONVERTIBLE security 0.3 $4.1M 5.0M 0.81
Arris Group Inc note 2.000%11/1 0.2 $3.1M 3.0M 1.02
CUBIST PHARM CONVERTIBLE security 0.2 $3.0M 3.0M 1.00
Penn Virginia Corporation 0.2 $2.9M 169k 16.96
Thoratec Corp note 1.379% 5/1 0.2 $2.6M 4.0M 0.65
Molina Healthcare Inc note 3.750%10/0 0.2 $2.4M 3.0M 0.80
Evergreen Solar Inc note 4.000% 7/1 0.1 $2.1M 2.8M 0.78
Sterlite Inds India Ltd note 4.000%10/3 0.1 $2.0M 2.0M 1.00
Chesapeake Energy Corp note 2.500% 5/1 0.1 $1.8M 1.8M 1.00
Ciena Corp note 0.875% 6/1 0.1 $1.5M 1.5M 1.00
PostRock Energy Corporation 0.1 $1.3M 204k 6.39
Teva Pharmaceutical Industries (TEVA) 0.1 $826k 17k 50.15
Bank Of America Corporation preferred (BAC.PL) 0.1 $809k 800.00 1011.25
Goodrich Pete Corp note 3.250%12/0 0.0 $505k 500k 1.01
Lucent Technologies Inc dbcv 2.875% 6/1 0.0 $485k 500k 0.97
Southern Union Company 0.0 $429k 15k 28.60
Great Plains Energy Incorporated 0.0 $348k 17k 20.00
Google 0.0 $248k 423.00 586.29
Frontier Communications 0.0 $309k 38k 8.22
Sunpower Corp dbcv 1.250% 2/1 0.0 $147k 150k 0.98
Amylin Pharmaceuticals Inc note 3.000% 6/1 0.0 $172k 200k 0.86
IAC/InterActive 0.0 $145k 4.7k 30.95
Armstrong World Industries (AWI) 0.0 $125k 2.7k 46.45
MedAssets 0.0 $75k 4.9k 15.31
Tesla Motors (TSLA) 0.0 $78k 2.8k 27.63
Live Nation Entertainment (LYV) 0.0 $28k 2.8k 10.14