Rock Springs Capital Management

Rock Springs Capital Management as of June 30, 2016

Portfolio Holdings for Rock Springs Capital Management

Rock Springs Capital Management holds 136 positions in its portfolio as reported in the June 2016 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Aetna 4.0 $54M 440k 122.13
Acadia Healthcare (ACHC) 3.4 $46M 837k 55.40
Tesaro 3.2 $44M 520k 84.05
Allergan 3.1 $42M 181k 231.09
Pfizer (PFE) 2.8 $37M 1.1M 35.21
Hca Holdings (HCA) 2.5 $33M 430k 77.01
Radius Health 2.4 $32M 868k 36.75
Spark Therapeutics 2.3 $31M 610k 51.13
Intuitive Surgical (ISRG) 2.1 $29M 44k 661.41
Gilead Sciences (GILD) 2.1 $29M 344k 83.42
Advanced Accelerat spon ads each rep 2 ord 2.1 $28M 921k 30.23
Alexion Pharmaceuticals 2.0 $28M 236k 116.76
CIGNA Corporation 2.0 $27M 207k 127.99
WellCare Health Plans 1.9 $25M 235k 107.28
Celgene Corporation 1.9 $25M 255k 98.63
Gw Pharmaceuticals Plc ads 1.8 $25M 270k 91.57
Medicines Company 1.7 $23M 681k 33.63
Shire 1.6 $22M 120k 184.08
Eli Lilly & Co. (LLY) 1.6 $22M 276k 78.75
Teva Pharmaceutical Industries (TEVA) 1.5 $20M 395k 50.23
Neurocrine Biosciences (NBIX) 1.4 $19M 410k 45.45
Aclaris Therapeutics (ACRS) 1.4 $19M 1.0M 18.47
HeartWare International 1.3 $18M 311k 57.75
Pacira Pharmaceuticals (PCRX) 1.2 $16M 473k 33.73
Theravance Biopharma (TBPH) 1.2 $16M 700k 22.69
Thermo Fisher Scientific (TMO) 1.1 $15M 100k 147.76
McKesson Corporation (MCK) 1.1 $15M 78k 186.65
Bristol Myers Squibb (BMY) 1.1 $15M 197k 73.55
Jazz Pharmaceuticals (JAZZ) 1.1 $14M 102k 141.31
Collegium Pharmaceutical Inc Common Stock Usd (COLL) 1.1 $14M 1.2M 11.85
Penumbra (PEN) 1.1 $14M 243k 59.50
Amgen (AMGN) 1.1 $14M 94k 152.15
Mednax (MD) 1.1 $14M 195k 72.43
Biogen Idec (BIIB) 1.0 $14M 58k 241.82
Therapeuticsmd 1.0 $13M 1.6M 8.50
Walgreen Boots Alliance (WBA) 1.0 $13M 160k 83.27
Incyte Corporation (INCY) 0.9 $12M 155k 79.98
Galapagos Nv- (GLPG) 0.9 $12M 210k 55.47
Ardelyx (ARDX) 0.8 $11M 1.3M 8.73
Prothena (PRTA) 0.8 $11M 308k 34.96
Pra Health Sciences 0.8 $11M 253k 41.76
Dermira 0.8 $10M 355k 29.25
Healthsouth 0.8 $10M 265k 38.82
Achillion Pharmaceuticals 0.8 $10M 1.3M 7.80
Wright Medical Group Nv 0.7 $9.5M 548k 17.37
Clearside Biomedical (CLSD) 0.7 $9.5M 1.4M 7.01
Retrophin 0.7 $9.3M 521k 17.81
BioMarin Pharmaceutical (BMRN) 0.7 $8.8M 113k 77.80
XenoPort 0.6 $8.4M 1.2M 7.04
Edwards Lifesciences (EW) 0.6 $8.3M 84k 99.72
Alkermes (ALKS) 0.6 $8.4M 195k 43.22
Hologic (HOLX) 0.6 $8.0M 230k 34.60
Juno Therapeutics 0.6 $7.6M 197k 38.44
Seres Therapeutics (MCRB) 0.6 $7.6M 262k 29.05
Envision Healthcare Hlds 0.6 $7.4M 291k 25.37
Intra Cellular Therapies (ITCI) 0.6 $7.4M 190k 38.82
Vertex Pharmaceuticals Incorporated (VRTX) 0.5 $7.4M 86k 86.02
Ophthotech 0.5 $7.3M 143k 51.03
American Renal Associates Ho 0.5 $7.2M 250k 28.97
Corsicanto Ltd conv bnd 0.5 $7.2M 7.0M 1.03
Ultragenyx Pharmaceutical (RARE) 0.5 $6.9M 142k 48.91
Coherus Biosciences (CHRS) 0.5 $6.8M 400k 16.89
Beigene (BGNE) 0.5 $6.7M 225k 29.80
RTI Biologics 0.5 $6.7M 1.9M 3.59
Corvus Pharmaceuticals (CRVS) 0.5 $6.4M 450k 14.26
athenahealth 0.5 $6.3M 46k 138.01
Five Prime Therapeutics 0.5 $6.3M 153k 41.35
Invitae (NVTAQ) 0.5 $6.3M 858k 7.39
Novavax 0.5 $6.2M 853k 7.27
Adaptimmune Therapeutics (ADAP) 0.5 $6.2M 765k 8.15
Hill-Rom Holdings 0.5 $6.1M 120k 50.45
Epizyme 0.5 $6.1M 598k 10.24
Cardiome Pharma 0.5 $6.1M 1.2M 5.12
Macrogenics (MGNX) 0.5 $6.1M 225k 26.99
Regeneron Pharmaceuticals (REGN) 0.4 $5.9M 17k 349.24
Egalet Corporation note 5.50% 4/1/20 0.4 $5.9M 7.8M 0.76
Paratek Pharmaceuticals 0.4 $5.8M 419k 13.91
Novadaq Technologies 0.4 $5.5M 555k 9.84
Avexis 0.4 $5.4M 143k 38.02
Compugen (CGEN) 0.4 $5.3M 820k 6.48
CHINA CORD Blood Corp 0.4 $5.1M 880k 5.75
Proteostasis Therapeutics In 0.4 $5.0M 415k 12.13
Insmed (INSM) 0.4 $4.9M 498k 9.86
Insys Therapeutics 0.3 $4.7M 366k 12.94
Aduro Biotech 0.3 $4.7M 415k 11.31
Tandem Diabetes Care 0.3 $4.5M 595k 7.54
Alder Biopharmaceuticals 0.3 $4.5M 181k 24.97
Intersect Ent 0.3 $4.4M 340k 12.93
Portola Pharmaceuticals 0.3 $4.1M 175k 23.60
Allergan Plc pfd conv ser a 0.3 $4.2M 5.0k 832.80
Kite Pharma 0.3 $4.0M 80k 50.00
Rigel Pharmaceuticals (RIGL) 0.3 $3.9M 1.8M 2.23
Ascendis Pharma A S (ASND) 0.3 $4.0M 300k 13.27
Otonomy 0.3 $3.8M 240k 15.88
Amicus Therapeutics (FOLD) 0.3 $3.7M 680k 5.46
Fibrogen (FGEN) 0.3 $3.7M 225k 16.41
Auris Med Hldg 0.3 $3.6M 850k 4.19
Endochoice Hldgs 0.3 $3.5M 710k 4.90
Innoviva (INVA) 0.3 $3.5M 337k 10.53
Medicines Company conv 0.3 $3.5M 3.0M 1.18
Perrigo Company (PRGO) 0.2 $3.4M 38k 90.66
Nabriva Therapeutics 0.2 $3.2M 426k 7.50
Aimmune Therapeutics 0.2 $3.2M 293k 10.82
Merus N V (MRUS) 0.2 $2.9M 361k 7.99
Steris 0.2 $2.8M 40k 68.75
Cidara Therapeutics Inc Common Stock Usd 0.0001 (CDTX) 0.2 $2.6M 250k 10.31
Novocure Ltd ord (NVCR) 0.2 $2.5M 214k 11.67
Aeglea Biotherapeutics 0.2 $2.5M 524k 4.86
Sarepta Therapeutics (SRPT) 0.2 $2.5M 131k 19.07
Dynavax Technologies (DVAX) 0.2 $2.4M 165k 14.58
Dbv Technologies S A (DBVT) 0.2 $2.4M 73k 32.62
Nivalis Therapeutics 0.2 $2.2M 489k 4.60
Assembly Biosciences 0.2 $2.2M 390k 5.55
Genocea Biosciences 0.1 $2.0M 480k 4.10
Tetraphase Pharmaceuticals 0.1 $1.8M 425k 4.30
Inovalon Holdings Inc Cl A 0.1 $1.9M 104k 18.01
Clovis Oncology 0.1 $1.7M 125k 13.72
Global Blood Therapeutics In 0.1 $1.6M 98k 16.59
Dimension Therapeutics 0.1 $1.6M 271k 6.00
Intercept Pharmaceuticals In 0.1 $1.4M 10k 142.70
Egalet 0.1 $1.5M 300k 4.96
Chiasma 0.1 $1.4M 493k 2.89
Valeant Pharmaceuticals Int 0.1 $1.3M 66k 20.14
Anthera Pharmaceutcls 0.1 $1.4M 450k 3.09
Relypsa 0.1 $1.4M 75k 18.51
Cerulean Pharma 0.1 $1.3M 625k 2.12
Scynexis 0.1 $1.4M 635k 2.17
Cerner Corporation 0.1 $1.2M 20k 58.60
Atyr Pharma Inc Common Stock Usd 0.001 0.1 $1.2M 434k 2.78
Sophiris Bio 0.1 $1.1M 490k 2.15
Puma Biotechnology (PBYI) 0.1 $983k 33k 29.79
Wright Med Group Inc note 2.000% 2/1 0.1 $920k 1.0M 0.92
Bluebird Bio (BLUE) 0.1 $866k 20k 43.30
Orexigen Therapeutics 0.1 $711k 1.7M 0.43
Mirna Therapeutics 0.1 $639k 150k 4.26
Infinity Pharmaceuticals (INFIQ) 0.0 $359k 270k 1.33