Rock Springs Capital Management

Rock Springs Capital Management as of March 31, 2015

Portfolio Holdings for Rock Springs Capital Management

Rock Springs Capital Management holds 105 positions in its portfolio as reported in the March 2015 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Medtronic (MDT) 4.2 $45M 572k 77.99
Abbvie (ABBV) 3.3 $35M 600k 58.54
McKesson Corporation (MCK) 3.1 $34M 149k 226.20
Actavis 3.1 $34M 113k 297.62
Hca Holdings (HCA) 3.0 $32M 423k 75.23
Valeant Pharmaceuticals Int 2.9 $31M 155k 198.62
Pfizer (PFE) 2.5 $26M 760k 34.79
Amgen (AMGN) 2.5 $26M 164k 159.85
Acadia Healthcare (ACHC) 2.4 $26M 363k 71.60
Gilead Sciences (GILD) 2.3 $25M 255k 98.13
Pharmacyclics 2.1 $23M 88k 255.95
Celgene Corporation 2.1 $22M 195k 115.28
Envision Healthcare Hlds 2.0 $22M 570k 38.35
Thoratec Corporation 2.0 $22M 515k 41.89
Humana (HUM) 1.8 $19M 108k 178.02
Alexion Pharmaceuticals 1.8 $19M 108k 173.30
Team Health Holdings 1.7 $18M 311k 58.51
Tornier Nv 1.6 $17M 660k 26.22
CVS Caremark Corporation (CVS) 1.6 $17M 164k 103.21
Retrophin 1.6 $17M 700k 23.96
Eli Lilly & Co. (LLY) 1.6 $17M 230k 72.65
Aetna 1.6 $17M 157k 106.53
Radius Health 1.5 $17M 400k 41.16
CIGNA Corporation 1.5 $16M 122k 129.44
Biogen Idec (BIIB) 1.5 $16M 37k 422.24
Neurocrine Biosciences (NBIX) 1.4 $15M 375k 39.71
Thermo Fisher Scientific (TMO) 1.3 $13M 100k 134.34
Orexigen Therapeutics 1.1 $12M 1.6M 7.83
Tesaro 1.1 $12M 210k 57.40
Intuitive Surgical (ISRG) 1.1 $11M 23k 505.02
Inovalon Holdings Inc Cl A 1.1 $11M 375k 30.21
Receptos 1.0 $11M 65k 164.89
Incyte Corporation (INCY) 1.0 $10M 113k 91.66
Stericycle (SRCL) 1.0 $10M 74k 140.44
Cooper Companies (COO) 0.9 $10M 54k 187.43
Intercept Pharmaceuticals In 0.9 $10M 36k 282.03
Healthsouth 0.9 $9.8M 220k 44.36
Laboratory Corp. of America Holdings (LH) 0.9 $9.5M 75k 126.09
RTI Biologics 0.9 $9.2M 1.9M 4.94
HeartWare International 0.9 $9.2M 105k 87.77
Prothena (PRTA) 0.8 $9.1M 238k 38.14
Danaher Corporation (DHR) 0.8 $9.0M 106k 84.90
Medicines Company 0.8 $8.4M 300k 28.02
Flamel Technologies 0.8 $8.3M 460k 17.98
Pra Health Sciences 0.8 $8.2M 285k 28.84
Health Care SPDR (XLV) 0.8 $8.0M 110k 72.50
Vertex Pharmaceuticals Incorporated (VRTX) 0.8 $8.0M 68k 117.97
Perrigo Company (PRGO) 0.7 $7.8M 47k 165.55
Novadaq Technologies 0.7 $7.7M 475k 16.24
Insmed (INSM) 0.7 $7.6M 365k 20.80
Relypsa 0.7 $7.4M 205k 36.07
Juno Therapeutics 0.7 $7.4M 122k 60.66
DaVita (DVA) 0.7 $7.3M 90k 81.28
Advaxis 0.7 $7.1M 490k 14.44
Zs Pharma 0.6 $6.6M 158k 42.08
WuXi PharmaTech 0.6 $6.5M 168k 38.78
Theravance Biopharma (TBPH) 0.6 $6.5M 374k 17.35
Gw Pharmaceuticals Plc ads 0.6 $6.4M 70k 91.13
Steris Corporation 0.6 $6.2M 88k 70.27
Connecture 0.6 $6.2M 600k 10.35
Coherus Biosciences (CHRS) 0.6 $6.1M 199k 30.58
Novavax 0.6 $6.0M 730k 8.27
Tandem Diabetes Care 0.6 $6.0M 476k 12.62
Achillion Pharmaceuticals 0.6 $5.9M 600k 9.86
Puma Biotechnology (PBYI) 0.5 $5.7M 24k 236.12
Kythera Biopharmaceuticals I 0.5 $5.8M 115k 50.15
Epizyme 0.5 $5.8M 307k 18.78
Ultragenyx Pharmaceutical (RARE) 0.5 $5.7M 92k 62.09
WellCare Health Plans 0.5 $5.5M 60k 91.47
Cardiome Pharma 0.5 $5.2M 565k 9.26
Actavis Plc Conv Pfd Ser A pfd conv ser a 0.5 $5.2M 5.0k 1030.00
Cerulean Pharma 0.5 $4.9M 540k 9.01
Fibrogen (FGEN) 0.4 $4.7M 151k 31.38
Aerie Pharmaceuticals 0.4 $4.6M 146k 31.34
Regeneron Pharmaceuticals (REGN) 0.4 $4.5M 10k 451.50
Illumina (ILMN) 0.4 $4.5M 24k 185.62
Pacira Pharmaceuticals (PCRX) 0.4 $4.5M 51k 88.85
Jazz Pharmaceuticals (JAZZ) 0.4 $4.5M 26k 172.81
Cerner Corporation 0.4 $4.4M 60k 73.27
CHINA CORD Blood Corp 0.4 $4.2M 830k 5.11
Kite Pharma 0.4 $4.1M 72k 57.69
Assembly Biosciences (ASMB) 0.4 $4.2M 318k 13.24
BioMarin Pharmaceutical (BMRN) 0.4 $4.1M 33k 124.62
Castlight Health 0.4 $4.1M 525k 7.76
Tetraphase Pharmaceuticals 0.3 $3.8M 103k 36.64
Macrogenics (MGNX) 0.3 $3.7M 117k 31.37
Five Prime Therapeutics 0.3 $3.1M 136k 22.85
Infinity Pharmaceuticals (INFIQ) 0.3 $3.0M 215k 13.98
Bluebird Bio (BLUE) 0.3 $3.0M 25k 120.76
Avalanche Biotechnologies In 0.3 $2.9M 71k 40.52
Benefitfocus 0.3 $2.8M 75k 36.79
Spark Therapeutics 0.2 $2.6M 33k 77.51
Cellectis S A (CLLS) 0.2 $2.6M 75k 34.59
Ptc Therapeutics I (PTCT) 0.2 $2.5M 41k 60.84
XenoPort 0.2 $2.2M 310k 7.12
Invitae (NVTA) 0.2 $2.1M 125k 16.76
Trivascular Technologies 0.2 $2.1M 198k 10.49
Anthera Pharmaceutcls 0.2 $1.9M 425k 4.47
Kindred Biosciences 0.2 $2.0M 275k 7.14
Raptor Pharmaceutical 0.2 $1.7M 155k 10.87
EnteroMedics 0.1 $747k 812k 0.92
Roka Bioscience 0.1 $800k 250k 3.20
Dermira 0.1 $649k 42k 15.35
Ascendis Pharma A S (ASND) 0.1 $617k 36k 17.36
Heron Therapeutics (HRTX) 0.0 $473k 33k 14.55