Rock Springs Capital Management

Rock Springs Capital Management as of June 30, 2018

Portfolio Holdings for Rock Springs Capital Management

Rock Springs Capital Management holds 147 positions in its portfolio as reported in the June 2018 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
UnitedHealth (UNH) 5.4 $139M 568k 245.34
Madrigal Pharmaceuticals (MDGL) 3.7 $96M 342k 279.69
Intuitive Surgical (ISRG) 2.6 $68M 142k 478.48
Neurocrine Biosciences (NBIX) 2.4 $62M 630k 98.24
Gw Pharmaceuticals Plc ads 2.4 $61M 440k 139.54
Alexion Pharmaceuticals 2.4 $61M 493k 124.15
Abbvie (ABBV) 2.1 $56M 600k 92.65
WellCare Health Plans 2.1 $55M 223k 246.24
Molina Healthcare (MOH) 2.0 $53M 545k 97.94
Acadia Healthcare (ACHC) 2.0 $51M 1.3M 40.91
Loxo Oncology 1.9 $50M 290k 173.48
Spark Therapeutics 1.7 $45M 544k 82.76
Hca Holdings (HCA) 1.7 $44M 430k 102.60
Sarepta Therapeutics (SRPT) 1.5 $39M 298k 132.18
Collegium Pharmaceutical Inc Common Stock Usd (COLL) 1.5 $39M 1.7M 23.85
Irhythm Technologies (IRTC) 1.5 $39M 480k 81.13
Pacira Pharmaceuticals (PCRX) 1.5 $38M 1.2M 32.05
Radius Health 1.3 $33M 1.1M 29.47
Beigene (BGNE) 1.3 $33M 215k 153.73
Penumbra (PEN) 1.3 $33M 237k 138.15
Vertex Pharmaceuticals Incorporated (VRTX) 1.2 $32M 191k 169.96
Encompass Health Corp (EHC) 1.2 $31M 450k 67.72
Stryker Corporation (SYK) 1.2 $30M 178k 168.86
Celgene Corporation 1.1 $29M 360k 79.42
DaVita (DVA) 1.1 $28M 409k 69.44
Puma Biotechnology (PBYI) 1.1 $28M 476k 59.15
Tesaro 1.1 $28M 625k 44.47
Axogen (AXGN) 1.1 $27M 545k 50.25
Pra Health Sciences 1.0 $27M 288k 93.36
Wright Medical Group Nv 1.0 $26M 1.0M 25.96
Gilead Sciences (GILD) 1.0 $26M 365k 70.84
Medicines Company 1.0 $25M 690k 36.70
Teleflex Incorporated (TFX) 0.9 $25M 93k 268.21
Alder Biopharmaceuticals 0.9 $25M 1.6M 15.80
Edwards Lifesciences (EW) 0.9 $24M 165k 145.57
Align Technology (ALGN) 0.9 $23M 66k 342.14
EXACT Sciences Corporation (EXAS) 0.9 $23M 380k 59.79
Inogen (INGN) 0.8 $22M 119k 186.33
Baxter International (BAX) 0.8 $22M 297k 73.84
Heron Therapeutics (HRTX) 0.8 $20M 525k 38.85
Thermo Fisher Scientific (TMO) 0.8 $20M 96k 207.14
Incyte Corporation (INCY) 0.8 $20M 296k 67.00
NuVasive 0.8 $19M 373k 52.12
Insmed (INSM) 0.8 $20M 825k 23.65
Fibrogen (FGEN) 0.7 $19M 307k 62.60
AmerisourceBergen (COR) 0.7 $19M 220k 85.27
Zimmer Holdings (ZBH) 0.7 $18M 161k 111.44
Mersana Therapeutics (MRSN) 0.7 $18M 1.0M 17.86
Assembly Biosciences (ASMB) 0.7 $18M 450k 39.21
Alnylam Pharmaceuticals (ALNY) 0.7 $17M 174k 98.49
Galapagos Nv- (GLPG) 0.7 $17M 185k 92.18
Aclaris Therapeutics (ACRS) 0.7 $17M 856k 19.97
Jazz Pharmaceuticals (JAZZ) 0.7 $17M 98k 172.30
Epizyme 0.7 $17M 1.2M 13.55
Audentes Therapeutics 0.7 $17M 440k 38.21
Obseva Sa 0.7 $17M 1.1M 15.14
Arena Pharmaceuticals 0.6 $16M 375k 43.60
Ascendis Pharma A S (ASND) 0.6 $16M 244k 66.52
Hologic (HOLX) 0.6 $16M 400k 39.75
West Pharmaceutical Services (WST) 0.6 $16M 160k 99.29
IDEXX Laboratories (IDXX) 0.6 $16M 72k 217.94
Amicus Therapeutics (FOLD) 0.6 $16M 1.0M 15.62
Biohaven Pharmaceutical Holding 0.6 $16M 398k 39.52
Biogen Idec (BIIB) 0.6 $15M 53k 290.25
Ultragenyx Pharmaceutical (RARE) 0.6 $15M 200k 76.87
Intersect Ent 0.6 $15M 410k 37.45
Theravance Biopharma (TBPH) 0.6 $15M 653k 22.68
G1 Therapeutics (GTHX) 0.5 $13M 300k 43.46
Exelixis (EXEL) 0.5 $13M 595k 21.52
Blueprint Medicines (BPMC) 0.5 $13M 199k 63.48
Translate Bio 0.5 $13M 1.0M 12.65
Amarin Corporation (AMRN) 0.5 $12M 4.0M 3.09
Portola Pharmaceuticals 0.5 $12M 324k 37.77
Immunomedics 0.5 $12M 500k 23.67
Mirati Therapeutics (MRTX) 0.5 $12M 240k 49.30
BioMarin Pharmaceutical (BMRN) 0.5 $12M 125k 94.20
Clovis Oncology 0.5 $12M 255k 45.47
Rigel Pharmaceuticals (RIGL) 0.4 $11M 4.0M 2.83
Retrophin 0.4 $11M 400k 27.26
Anaptysbio Inc Common (ANAB) 0.4 $11M 150k 71.04
Argenx Se (ARGX) 0.4 $11M 129k 82.86
Invitae (NVTA) 0.4 $10M 1.4M 7.35
Clearside Biomedical (CLSD) 0.4 $10M 975k 10.69
Agilent Technologies Inc C ommon (A) 0.4 $10M 164k 61.84
Zogenix 0.4 $10M 226k 44.20
Coherus Biosciences (CHRS) 0.4 $9.7M 690k 14.00
Homology Medicines (FIXX) 0.4 $9.6M 470k 20.40
Momenta Pharmaceuticals 0.4 $9.3M 453k 20.45
Endocyte 0.4 $9.3M 675k 13.80
Five Prime Therapeutics 0.4 $9.4M 593k 15.81
Ardelyx (ARDX) 0.4 $9.3M 2.5M 3.70
RTI Biologics 0.3 $9.0M 2.0M 4.60
Adaptimmune Therapeutics (ADAP) 0.3 $8.9M 750k 11.87
Odonate Therapeutics Ord 0.3 $8.8M 398k 22.08
Global China Cord Blood Corp (CORBF) 0.3 $8.4M 880k 9.49
Aptinyx 0.3 $8.2M 340k 24.17
Sage Therapeutics (SAGE) 0.3 $7.7M 49k 156.53
Cymabay Therapeutics (CBAY) 0.3 $7.8M 580k 13.42
Spero Therapeutics (SPRO) 0.3 $7.7M 525k 14.67
Ra Pharmaceuticals 0.3 $7.5M 750k 9.95
Kura Oncology (KURA) 0.3 $7.3M 400k 18.20
Bluebird Bio (BLUE) 0.3 $7.1M 45k 156.96
Zai Lab (ZLAB) 0.3 $7.0M 300k 23.25
Achillion Pharmaceuticals 0.3 $6.7M 2.4M 2.83
Global Blood Therapeutics In 0.3 $6.8M 150k 45.20
Aeglea Biotherapeutics 0.3 $6.9M 650k 10.58
Myovant Sciences 0.3 $6.7M 295k 22.87
Rhythm Pharmaceuticals (RYTM) 0.3 $6.7M 215k 31.26
La Jolla Pharmaceuticl Com Par 0.2 $6.5M 222k 29.17
Corvus Pharmaceuticals (CRVS) 0.2 $6.3M 575k 10.98
Boston Scientific Corporation (BSX) 0.2 $5.6M 173k 32.70
Macrogenics (MGNX) 0.2 $5.7M 275k 20.65
Dermira 0.2 $5.5M 600k 9.20
Gtx Inc Del 0.2 $5.4M 354k 15.31
Insmed Inc convertible security 0.2 $5.5M 6.0M 0.92
Alder Biopharmaceuticals Inc convertible security 0.2 $5.2M 5.0M 1.04
Envision Healthcare 0.2 $4.9M 110k 44.01
Medicines Company 2.750000 07/15/2023 bond 0.2 $5.1M 5.0M 1.01
Paratek Pharmaceuticals 0.2 $4.6M 450k 10.20
Adverum Biotechnologies (ADVM) 0.2 $4.8M 900k 5.30
Novavax 0.2 $4.4M 3.3M 1.34
Clementia 0.2 $4.5M 345k 13.16
Correvio Pharma Corp 0.2 $4.5M 1.2M 3.78
Dynavax Technologies (DVAX) 0.2 $4.1M 268k 15.25
Compugen (CGEN) 0.1 $3.6M 1.1M 3.30
Medicines Company conv 0.1 $3.7M 3.0M 1.22
Intra Cellular Therapies (ITCI) 0.1 $3.3M 188k 17.67
Solid Biosciences 0.1 $3.4M 95k 35.63
Allergan 0.1 $2.9M 18k 166.71
Egalet Corporation note 5.50% 4/1/20 0.1 $2.8M 7.8M 0.36
Menlo Therapeutics 0.1 $2.7M 330k 8.12
Restorbio 0.1 $2.5M 275k 9.15
Nabriva Therapeutics 0.1 $2.2M 640k 3.48
Seres Therapeutics (MCRB) 0.1 $1.9M 220k 8.60
BioCryst Pharmaceuticals (BCRX) 0.1 $1.4M 250k 5.73
Cidara Therapeutics Inc Common Stock Usd 0.0001 (CDTX) 0.1 $1.6M 300k 5.20
Theravance Biopharma Inc note 3.250%11/0 0.1 $1.5M 1.5M 0.99
Neurocrine Biosciences Inc Note 2.250 5/1 0.1 $1.5M 1.0M 1.45
Kiniksa Pharmaceuticals (KNSA) 0.1 $1.6M 90k 17.36
Prothena (PRTA) 0.1 $1.2M 85k 14.58
Scynexis 0.1 $1.3M 820k 1.64
Proteostasis Therapeutics In 0.1 $1.3M 471k 2.79
Radius Health Inc note 3.000% 9/0 0.1 $1.4M 1.5M 0.93
Pacira Pharmaceuticals Inc convertible security 0.0 $930k 1.0M 0.93
McKesson Corporation (MCK) 0.0 $667k 5.0k 133.40
Chiasma 0.0 $788k 525k 1.50
Dermira Inc note 3.000% 5/1 0.0 $830k 1.0M 0.83