BB Biotech

BB Biotech as of March 31, 2011

Portfolio Holdings for BB Biotech

BB Biotech holds 17 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
Celgene Corporation 24.9 $261M 4.5M 57.57
Gilead Sciences (GILD) 18.4 $193M 4.5M 42.47
Vertex Pharmaceuticals Incorporated (VRTX) 18.1 $189M 4.0M 47.93
Incyte Corporation (INCY) 6.8 $71M 4.5M 15.85
Dendreon Corporation 4.2 $44M 1.2M 37.43
Micromet 3.6 $37M 6.7M 5.60
ImmunoGen 3.4 $36M 3.9M 9.07
Halozyme Therapeutics (HALO) 3.2 $34M 5.0M 6.70
Amylin Pharmaceuticals 2.9 $31M 2.7M 11.37
Alexion Pharmaceuticals 2.6 $28M 282k 98.68
ISIS Pharmaceuticals 2.6 $27M 3.0M 9.04
Amgen (AMGN) 2.5 $27M 500k 53.45
BioMarin Pharmaceutical (BMRN) 2.3 $24M 963k 25.13
Optimer Pharmaceuticals 2.3 $24M 2.0M 11.83
Affymetrix 1.0 $10M 2.0M 5.21
Idenix Pharmaceuticals 0.7 $7.0M 2.1M 3.32
Human Genome Sciences 0.5 $5.4M 196k 27.45