Rock Springs Capital Management

Rock Springs Capital Management as of June 30, 2015

Portfolio Holdings for Rock Springs Capital Management

Rock Springs Capital Management holds 117 positions in its portfolio as reported in the June 2015 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Abbvie (ABBV) 3.7 $50M 746k 67.19
Medtronic (MDT) 3.1 $42M 570k 74.10
Valeant Pharmaceuticals Int 3.1 $42M 189k 222.15
Acadia Healthcare (ACHC) 2.9 $40M 512k 78.33
Hca Holdings (HCA) 2.8 $38M 423k 90.72
Allergan 2.7 $37M 122k 303.46
McKesson Corporation (MCK) 2.5 $34M 150k 224.81
Spark Therapeutics 2.2 $31M 508k 60.27
Gilead Sciences (GILD) 2.2 $30M 258k 117.08
Radius Health 2.1 $29M 429k 67.70
Alexion Pharmaceuticals 2.0 $28M 155k 180.77
Pfizer (PFE) 1.9 $26M 760k 33.53
Humana (HUM) 1.8 $25M 132k 191.28
Amgen (AMGN) 1.8 $24M 156k 153.52
Thoratec Corporation 1.7 $24M 533k 44.57
Celgene Corporation 1.7 $23M 198k 115.74
Envision Healthcare Hlds 1.6 $23M 570k 39.48
Retrophin 1.6 $22M 675k 33.15
Team Health Holdings 1.5 $20M 313k 65.33
Aetna 1.5 $20M 157k 127.46
CIGNA Corporation 1.4 $20M 122k 162.00
Eli Lilly & Co. (LLY) 1.4 $19M 233k 83.49
Neurocrine Biosciences (NBIX) 1.3 $18M 376k 47.76
CVS Caremark Corporation (CVS) 1.3 $17M 164k 104.88
Adaptimmune Therapeutics (ADAP) 1.2 $17M 905k 18.33
Tornier Nv 1.2 $17M 660k 24.99
Intuitive Surgical (ISRG) 1.2 $16M 33k 484.52
Biogen Idec (BIIB) 1.1 $16M 39k 403.93
Inovalon Holdings Inc Cl A 1.1 $16M 560k 27.90
Coherus Biosciences (CHRS) 1.1 $15M 534k 28.90
Adeptus Health Inc-class A 1.0 $14M 150k 94.99
Collegium Pharmaceutical Inc Common Stock Usd (COLL) 1.0 $14M 755k 17.84
Prothena (PRTA) 1.0 $13M 250k 52.67
Thermo Fisher Scientific (TMO) 0.9 $13M 100k 129.76
Receptos 0.9 $13M 68k 190.05
Tesaro 0.9 $13M 217k 58.79
RTI Biologics 0.9 $12M 1.9M 6.46
Healthsouth 0.9 $12M 258k 46.06
Incyte Corporation (INCY) 0.9 $12M 113k 104.21
HeartWare International 0.9 $12M 162k 72.69
Kythera Biopharmaceuticals I 0.8 $11M 139k 75.31
Juno Therapeutics 0.8 $11M 197k 53.33
Aduro Biotech 0.8 $11M 350k 30.33
Pra Health Sciences 0.8 $10M 285k 36.33
Medicines Company 0.7 $9.9M 346k 28.61
DaVita (DVA) 0.7 $9.7M 122k 79.47
Achillion Pharmaceuticals 0.7 $9.7M 1.1M 8.86
Ardelyx (ARDX) 0.7 $9.7M 610k 15.97
Cooper Companies 0.7 $9.6M 54k 177.96
Ultragenyx Pharmaceutical (RARE) 0.7 $9.4M 92k 102.39
Endochoice Hldgs 0.7 $9.4M 576k 16.35
Danaher Corporation (DHR) 0.7 $9.0M 106k 85.59
Gw Pharmaceuticals Plc ads 0.7 $9.0M 73k 122.84
Insmed (INSM) 0.7 $8.9M 365k 24.42
Perrigo Company (PRGO) 0.6 $8.7M 47k 184.83
Seres Therapeutics (MCRB) 0.6 $8.6M 207k 41.50
Advaxis 0.6 $8.5M 418k 20.33
Anthem (ELV) 0.6 $8.5M 52k 164.14
Nivalis Therapeutics 0.6 $8.6M 564k 15.15
Vertex Pharmaceuticals Incorporated (VRTX) 0.6 $8.4M 68k 123.49
Zs Pharma 0.6 $8.3M 159k 52.39
Novavax 0.6 $8.0M 715k 11.14
Relypsa 0.6 $7.9M 240k 33.09
Intercept Pharmaceuticals In 0.6 $7.8M 33k 241.38
Galapagos Nv- (GLPG) 0.6 $7.9M 153k 51.50
Orexigen Therapeutics 0.6 $7.7M 1.6M 4.95
Bluebird Bio (BLUE) 0.6 $7.6M 45k 168.38
Atyr Pharma Inc Common Stock Usd 0.001 0.6 $7.6M 409k 18.52
Epizyme 0.5 $7.4M 307k 24.00
Otonomy 0.5 $7.4M 321k 22.99
Kite Pharma 0.5 $7.2M 118k 60.97
IDEXX Laboratories (IDXX) 0.5 $7.1M 111k 64.14
WuXi PharmaTech 0.5 $7.1M 168k 42.26
Novadaq Technologies 0.5 $6.5M 540k 12.11
Castlight Health 0.5 $6.5M 800k 8.14
Connecture 0.5 $6.6M 625k 10.56
Theravance Biopharma (TBPH) 0.5 $6.2M 475k 13.02
Assembly Biosciences 0.4 $6.0M 314k 19.26
Cardiome Pharma 0.4 $5.9M 625k 9.41
Invitae (NVTAQ) 0.4 $6.0M 400k 14.88
Tandem Diabetes Care 0.4 $5.8M 535k 10.84
Regeneron Pharmaceuticals (REGN) 0.4 $5.6M 11k 510.09
Amicus Therapeutics (FOLD) 0.4 $5.3M 378k 14.15
Insys Therapeutics 0.4 $5.3M 147k 35.92
Macrogenics (MGNX) 0.4 $5.2M 138k 37.97
Allergan Plc pfd conv ser a 0.4 $5.2M 5.0k 1045.60
WellCare Health Plans 0.4 $5.1M 60k 84.83
CHINA CORD Blood Corp 0.4 $5.1M 830k 6.16
Intersect Ent 0.4 $5.0M 175k 28.63
Cerner Corporation 0.3 $4.8M 70k 69.06
Raptor Pharmaceutical 0.3 $4.8M 305k 15.79
Pacira Pharmaceuticals (PCRX) 0.3 $4.8M 68k 70.72
Jazz Pharmaceuticals (JAZZ) 0.3 $4.6M 26k 176.08
Aratana Therapeutics 0.3 $4.5M 300k 15.12
Fibrogen (FGEN) 0.3 $4.5M 190k 23.50
BioMarin Pharmaceutical (BMRN) 0.3 $4.4M 33k 136.77
athenahealth 0.3 $4.4M 38k 114.58
Dermira 0.3 $4.4M 250k 17.55
Ascendis Pharma A S (ASND) 0.3 $4.2M 240k 17.68
Biodel 0.3 $4.1M 4.0M 1.03
Anthera Pharmaceutcls 0.3 $4.1M 470k 8.62
Illumina (ILMN) 0.3 $3.9M 18k 218.37
Cidara Therapeutics Inc Common Stock Usd 0.0001 (CDTX) 0.3 $3.5M 250k 14.02
Five Prime Therapeutics 0.2 $3.0M 120k 24.84
Cerulean Pharma 0.2 $2.9M 625k 4.60
Dyax 0.2 $2.7M 103k 26.50
Infinity Pharmaceuticals (INFIQ) 0.2 $2.4M 215k 10.95
XenoPort 0.1 $2.0M 325k 6.13
Tetraphase Pharmaceuticals 0.1 $2.0M 43k 47.44
Ptc Therapeutics I (PTCT) 0.1 $2.1M 43k 48.14
Kindred Biosciences 0.1 $1.9M 275k 6.82
Flamel Technologies 0.1 $1.6M 75k 21.19
Scynexis 0.1 $1.5M 176k 8.79
Vical Incorporated 0.1 $1.3M 1.8M 0.70
Puma Biotechnology (PBYI) 0.1 $1.3M 11k 116.73
Immune Design 0.1 $1.1M 55k 20.65
Roka Bioscience 0.1 $650k 250k 2.60