Palo Alto Investors

Palo Alto Investors as of Sept. 30, 2011

Portfolio Holdings for Palo Alto Investors

Palo Alto Investors holds 41 positions in its portfolio as reported in the September 2011 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
ViroPharma Incorporated 10.6 $82M 4.5M 18.07
Cyberonics 10.5 $81M 2.9M 28.30
Medicis Pharmaceutical Corporation 6.0 $46M 1.3M 36.48
Questcor Pharmaceuticals 5.8 $45M 1.7M 27.26
Onyx Pharmaceuticals 5.4 $42M 1.4M 30.01
Auxilium Pharmaceuticals 5.3 $41M 2.7M 14.99
BioMarin Pharmaceutical (BMRN) 5.1 $40M 1.2M 31.87
Cubist Pharmaceuticals 4.9 $38M 1.1M 35.32
Savient Pharmaceuticals 4.6 $36M 8.7M 4.10
AMAG Pharmaceuticals 4.1 $32M 2.2M 14.76
ArthroCare Corporation 4.0 $31M 1.1M 28.77
Momenta Pharmaceuticals 3.9 $30M 2.6M 11.50
STAAR Surgical Company (STAA) 3.5 $27M 3.4M 7.80
Alimera Sciences 3.1 $24M 3.0M 8.00
Amicus Therapeutics (FOLD) 2.9 $23M 5.9M 3.84
United Therapeutics Corporation (UTHR) 2.5 $19M 514k 37.49
Abiomed 2.2 $17M 1.5M 11.03
Northern Oil & Gas 1.8 $14M 710k 19.39
Sequenom 1.6 $12M 2.4M 5.10
InterMune 1.4 $11M 528k 20.20
Qlt 1.4 $10M 1.4M 7.31
Medivation 1.2 $9.7M 571k 16.98
Contango Oil & Gas Company 0.9 $7.4M 135k 54.71
EnerNOC 0.9 $7.2M 795k 9.00
Rigel Pharmaceuticals 0.8 $6.2M 845k 7.36
Vanda Pharmaceuticals (VNDA) 0.8 $6.1M 1.2M 4.95
Energy Recovery (ERII) 0.7 $5.5M 1.8M 3.00
Sonde Resources 0.7 $5.1M 2.2M 2.29
Savient Pharmaceuticals note 0.5 $4.2M 6.0M 0.70
NxStage Medical 0.5 $3.8M 183k 20.86
pSivida 0.5 $3.5M 821k 4.27
Theratechnologies 0.4 $3.2M 1.1M 2.97
NuVasive 0.4 $2.8M 163k 17.06
BroadVision 0.3 $2.5M 284k 8.71
Aegerion Pharmaceuticals 0.3 $2.4M 192k 12.67
Insmed (INSM) 0.2 $1.4M 266k 5.08
First Solar (FSLR) 0.2 $1.3M 20k 63.20
Cytokinetics 0.1 $835k 714k 1.17
Evergreen Solar Inc note 4.000% 7/1 0.1 $646k 32M 0.02
Protalix BioTherapeutics 0.1 $655k 142k 4.60
Celgene Corporation 0.0 $105k 1.7k 62.13