Ridgeback Capital Investments

Ridgeback Capital Investments as of March 31, 2012

Portfolio Holdings for Ridgeback Capital Investments

Ridgeback Capital Investments holds 13 positions in its portfolio as reported in the March 2012 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Ironwood Pharmaceuticals (IRWD) 28.4 $36M 2.7M 13.31
Ariad Pharmaceuticals 18.4 $23M 1.5M 15.98
Biogen Idec (BIIB) 12.6 $16M 126k 126.00
Regeneron Pharmaceuticals (REGN) 10.7 $13M 115k 116.62
Santarus 8.8 $11M 1.9M 5.85
Celldex Therapeutics 6.5 $8.2M 1.6M 5.09
Array BioPharma 5.2 $6.6M 1.9M 3.41
Sunesis Pharmaceuticals 3.4 $4.3M 1.5M 2.87
Dynavax Technologies Corporation 2.0 $2.5M 500k 5.03
Lorillard 1.8 $2.3M 18k 129.50
Sangamo Biosciences (SGMO) 1.4 $1.7M 350k 4.90
BioMarin Pharmaceutical (BMRN) 0.7 $856k 25k 34.24
Threshold Pharmaceuticals 0.1 $132k 15k 8.80