Rock Springs Capital Management

Rock Springs Capital Management as of Dec. 31, 2013

Portfolio Holdings for Rock Springs Capital Management

Rock Springs Capital Management holds 69 positions in its portfolio as reported in the December 2013 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Gilead Sciences (GILD) 7.7 $21M 285k 75.15
Health Care SPDR (XLV) 7.3 $21M 370k 55.44
Biogen Idec (BIIB) 5.3 $15M 53k 279.75
Abbvie (ABBV) 4.2 $12M 225k 52.81
Celgene Corporation 3.7 $11M 62k 168.97
McKesson Corporation (MCK) 3.6 $10M 63k 161.40
Thoratec Corporation 3.6 $10M 275k 36.60
Bristol Myers Squibb (BMY) 3.4 $9.6M 181k 53.15
Amgen (AMGN) 3.2 $9.0M 79k 114.16
Agilent Technologies Inc C ommon (A) 2.7 $7.6M 133k 57.19
Thermo Fisher Scientific (TMO) 2.7 $7.5M 68k 111.35
UnitedHealth (UNH) 2.7 $7.5M 100k 75.30
Gentium S.p.A. 2.4 $6.8M 120k 57.10
Alexion Pharmaceuticals 2.4 $6.8M 51k 133.06
Intuitive Surgical (ISRG) 2.4 $6.7M 18k 384.06
Illumina (ILMN) 2.2 $6.1M 55k 110.62
Valeant Pharmaceuticals Int 2.0 $5.5M 47k 117.40
Team Health Holdings 1.9 $5.4M 118k 45.55
Cardinal Health (CAH) 1.5 $4.3M 64k 66.81
Aetna 1.5 $4.3M 62k 68.59
Actavis 1.5 $4.1M 25k 168.00
CVS Caremark Corporation (CVS) 1.4 $3.9M 55k 71.58
Walgreen Company 1.3 $3.7M 64k 57.44
Humana (HUM) 1.2 $3.4M 33k 103.21
Puma Biotechnology (PBYI) 1.2 $3.3M 32k 103.52
HeartWare International 1.1 $3.1M 33k 93.95
Orexigen Therapeutics 1.1 $3.0M 525k 5.63
Pacira Pharmaceuticals (PCRX) 1.0 $2.9M 51k 57.49
Edwards Lifesciences (EW) 1.0 $2.8M 43k 65.76
Aegerion Pharmaceuticals 1.0 $2.8M 39k 70.96
Hca Holdings (HCA) 1.0 $2.8M 58k 47.71
athenahealth 0.9 $2.6M 20k 134.51
Tornier Nv 0.9 $2.4M 130k 18.79
Universal Health Services (UHS) 0.8 $2.3M 29k 81.26
Theravance 0.8 $2.2M 63k 35.65
Covance 0.8 $2.2M 26k 88.08
FEI Company 0.8 $2.2M 25k 89.35
Incyte Corporation (INCY) 0.8 $2.1M 42k 50.63
Auxilium Pharmaceuticals 0.7 $2.1M 100k 20.74
Cooper Companies 0.7 $2.0M 17k 123.82
Forest Laboratories 0.7 $2.0M 34k 60.03
Pharmacyclics 0.7 $2.0M 19k 105.78
Cerner Corporation 0.7 $1.9M 34k 55.74
InterMune 0.7 $1.8M 125k 14.73
Mednax (MD) 0.6 $1.7M 32k 53.38
Jazz Pharmaceuticals (JAZZ) 0.6 $1.6M 13k 126.54
Tesaro 0.6 $1.6M 58k 28.24
AmerisourceBergen (COR) 0.6 $1.6M 23k 70.31
Mylan 0.6 $1.6M 37k 43.40
Advisory Board Company 0.6 $1.6M 25k 63.67
CHINA CORD Blood Corp 0.5 $1.5M 375k 4.01
Vertex Pharmaceuticals Incorporated (VRTX) 0.5 $1.5M 20k 74.30
Infinity Pharmaceuticals (INFIQ) 0.5 $1.3M 96k 13.81
WuXi PharmaTech 0.5 $1.3M 34k 38.39
Medicines Company 0.5 $1.3M 33k 38.62
Cubist Pharmaceuticals 0.4 $1.2M 18k 68.86
WellCare Health Plans 0.4 $1.2M 17k 70.42
Novavax 0.4 $1.1M 220k 5.12
Intercept Pharmaceuticals In 0.4 $1.1M 17k 68.30
XenoPort 0.4 $1.0M 175k 5.75
AVANIR Pharmaceuticals 0.4 $1.0M 300k 3.36
Air Methods Corporation 0.3 $992k 17k 58.35
Alkermes (ALKS) 0.3 $945k 23k 40.65
Exelixis (EXEL) 0.3 $920k 150k 6.13
Cadence Pharmaceuticals 0.3 $810k 90k 9.05
ACADIA Pharmaceuticals (ACAD) 0.3 $785k 31k 24.99
Nektar Therapeutics (NKTR) 0.3 $738k 65k 11.35
EnteroMedics 0.3 $714k 350k 2.04
Ophthotech 0.2 $641k 20k 32.37