Rock Springs Capital Management

Rock Springs Capital Management as of Dec. 31, 2019

Portfolio Holdings for Rock Springs Capital Management

Rock Springs Capital Management holds 130 positions in its portfolio as reported in the December 2019 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
UnitedHealth (UNH) 5.5 $174M 591k 293.98
Neurocrine Biosciences (NBIX) 4.3 $137M 1.3M 107.49
WellCare Health Plans 3.3 $106M 321k 330.21
Amarin Corporation (AMRN) 3.1 $100M 4.7M 21.44
Intuitive Surgical (ISRG) 2.9 $90M 153k 591.15
Johnson & Johnson (JNJ) 2.6 $81M 558k 145.87
Hca Holdings (HCA) 2.2 $69M 468k 147.81
Humana (HUM) 2.1 $68M 185k 366.52
Encompass Health Corp (EHC) 1.8 $57M 815k 69.27
Boston Scientific Corporation (BSX) 1.7 $54M 1.2M 45.22
Pacira Pharmaceuticals (PCRX) 1.6 $52M 1.2M 45.30
Epizyme 1.6 $50M 2.1M 24.60
Teleflex Incorporated (TFX) 1.6 $49M 130k 376.44
Insulet Corporation (PODD) 1.4 $45M 261k 171.20
Sarepta Therapeutics (SRPT) 1.4 $45M 346k 129.04
Vertex Pharmaceuticals Incorporated (VRTX) 1.4 $44M 203k 218.95
Baxter International (BAX) 1.4 $44M 525k 83.62
Edwards Lifesciences (EW) 1.4 $43M 184k 233.29
Irhythm Technologies (IRTC) 1.3 $43M 624k 68.09
Alnylam Pharmaceuticals (ALNY) 1.3 $42M 364k 115.17
Penumbra (PEN) 1.3 $40M 243k 164.27
Argenx Se (ARGX) 1.3 $40M 248k 160.52
EXACT Sciences Corporation (EXAS) 1.2 $39M 420k 92.48
Mirati Therapeutics 1.2 $39M 300k 128.86
Ardelyx (ARDX) 1.1 $36M 4.9M 7.50
Galapagos Nv- (GLPG) 1.1 $36M 175k 206.83
Beigene (BGNE) 1.1 $36M 215k 165.76
Coherus Biosciences (CHRS) 1.1 $35M 2.0M 18.01
Ra Pharmaceuticals 1.1 $35M 750k 46.93
Aprea Therapeutics 1.1 $33M 724k 45.89
Nevro (NVRO) 1.0 $33M 279k 117.54
Acadia Healthcare (ACHC) 1.0 $32M 975k 33.22
Collegium Pharmaceutical Inc Common Stock Usd (COLL) 1.0 $32M 1.6M 20.58
IDEXX Laboratories (IDXX) 1.0 $31M 120k 261.13
Align Technology (ALGN) 1.0 $31M 111k 279.04
Agios Pharmaceuticals (AGIO) 1.0 $31M 642k 47.75
Assembly Biosciences 1.0 $31M 1.5M 20.46
Blueprint Medicines (BPMC) 1.0 $31M 382k 80.11
Amgen (AMGN) 1.0 $30M 126k 241.07
Axonics Modulation Technolog (AXNX) 1.0 $31M 1.1M 27.71
Mirum Pharmaceuticals (MIRM) 1.0 $31M 1.2M 24.52
Ultragenyx Pharmaceutical (RARE) 0.9 $30M 700k 42.71
Ascendis Pharma A S (ASND) 0.9 $30M 214k 139.12
ACADIA Pharmaceuticals (ACAD) 0.9 $29M 670k 42.78
Uniqure Nv (QURE) 0.9 $29M 400k 71.66
BioMarin Pharmaceutical (BMRN) 0.9 $29M 338k 84.55
Seattle Genetics 0.9 $28M 242k 114.26
Thermo Fisher Scientific (TMO) 0.8 $26M 81k 324.86
Medicines Company 0.8 $26M 308k 84.94
Deciphera Pharmaceuticals (DCPH) 0.8 $26M 422k 62.24
Zai Lab (ZLAB) 0.8 $26M 625k 41.59
Audentes Therapeutics 0.8 $25M 410k 59.84
West Pharmaceutical Services (WST) 0.7 $23M 153k 150.33
Madrigal Pharmaceuticals (MDGL) 0.7 $23M 250k 91.11
Allakos (ALLK) 0.7 $22M 235k 95.36
Achillion Pharmaceuticals 0.7 $22M 3.7M 6.03
Incyte Corporation (INCY) 0.7 $22M 250k 87.32
Portola Pharmaceuticals 0.7 $22M 900k 23.88
Immunomedics 0.7 $21M 1.0M 21.16
Global Blood Therapeutics In 0.7 $21M 265k 79.49
Freshpet (FRPT) 0.7 $21M 355k 59.09
Radius Health 0.6 $20M 1.0M 20.16
Intersect Ent 0.6 $20M 800k 24.90
Invitae (NVTAQ) 0.6 $19M 1.2M 16.13
Insmed (INSM) 0.6 $19M 800k 23.88
Forty Seven 0.6 $18M 450k 39.37
Theravance Biopharma (TBPH) 0.5 $17M 655k 25.89
Adaptive Biotechnologies Cor (ADPT) 0.5 $16M 545k 29.92
Healthequity (HQY) 0.5 $15M 205k 74.07
Cigna Corp (CI) 0.5 $15M 75k 204.49
Onespaworld Holdings Ltd onespaworld hold (OSW) 0.5 $15M 900k 16.84
Phreesia (PHR) 0.5 $15M 565k 26.64
Guardant Health (GH) 0.5 $15M 190k 78.14
Centene Corporation (CNC) 0.5 $14M 230k 62.87
Novocure Ltd ord (NVCR) 0.5 $15M 173k 84.27
Odonate Therapeutics Ord 0.4 $14M 430k 32.45
Karuna Therapeutics Ord 0.4 $14M 180k 75.34
Fibrogen (FGEN) 0.4 $13M 306k 42.89
Zogenix 0.4 $13M 250k 52.13
Rigel Pharmaceuticals (RIGL) 0.4 $12M 5.5M 2.14
Myokardia 0.4 $12M 160k 72.89
Constellation Pharmceticls I 0.3 $11M 234k 47.11
Biohaven Pharmaceutical Holding 0.3 $11M 200k 54.44
Arvinas Ord (ARVN) 0.3 $10M 250k 41.09
Amicus Therapeutics (FOLD) 0.3 $9.7M 1.0M 9.74
Dermira 0.3 $9.9M 650k 15.16
Bristol Myers Squibb (BMY) 0.3 $9.6M 150k 64.19
Dynavax Technologies (DVAX) 0.3 $9.0M 1.6M 5.72
Medicines Company 2.750000 07/15/2023 bond 0.3 $8.8M 5.0M 1.75
Homology Medicines 0.3 $8.8M 425k 20.70
Retrophin 0.3 $8.2M 575k 14.20
Momenta Pharmaceuticals 0.2 $7.9M 400k 19.73
Myovant Sciences 0.2 $7.8M 500k 15.52
Rhythm Pharmaceuticals (RYTM) 0.2 $7.9M 345k 22.96
Translate Bio 0.2 $7.7M 950k 8.14
Mersana Therapeutics (MRSN) 0.2 $7.1M 1.2M 5.73
Phasebio Pharmaceuticals (PHASQ) 0.2 $6.9M 1.1M 6.11
Compugen (CGEN) 0.2 $6.6M 1.1M 5.96
Intercept Pharmaceuticals In 0.2 $6.7M 54k 123.92
Ngm Biopharmaceuticals (NGM) 0.2 $6.5M 351k 18.49
Galera Therapeutics (GRTX) 0.2 $6.6M 500k 13.16
Aeglea Biotherapeutics 0.2 $6.1M 800k 7.64
Chiasma 0.2 $5.8M 1.2M 4.96
Insmed Inc convertible security 0.2 $5.8M 6.0M 0.97
Health Catalyst (HCAT) 0.2 $5.6M 160k 34.70
RTI Biologics 0.2 $5.3M 2.0M 2.74
10x Genomics Inc Cl A (TXG) 0.2 $5.5M 73k 76.25
Spero Therapeutics (SPRO) 0.2 $5.1M 525k 9.62
Akero Therapeutics (AKRO) 0.2 $5.0M 225k 22.20
Global China Cord Blood Corp (CORBF) 0.1 $4.6M 925k 5.00
Gamida Cell (GMDA) 0.1 $4.3M 1.0M 4.30
Bluebird Bio (BLUE) 0.1 $3.1M 35k 87.74
Aclaris Therapeutics (ACRS) 0.1 $3.0M 1.6M 1.89
Obseva Sa 0.1 $3.0M 790k 3.82
Nabriva Therapeutics 0.1 $2.8M 2.1M 1.32
Macrogenics (MGNX) 0.1 $2.5M 230k 10.88
Anaptysbio Inc Common (ANAB) 0.1 $2.2M 135k 16.25
Five Prime Therapeutics 0.1 $1.8M 400k 4.59
Paratek Pharmaceuticals 0.1 $1.5M 375k 4.03
Theravance Biopharma Inc note 3.250%11/0 0.1 $1.6M 1.5M 1.04
Neurocrine Biosciences Inc Note 2.250 5/1 0.1 $1.5M 1.0M 1.54
Radius Health Inc note 3.000% 9/0 0.0 $1.3M 1.5M 0.85
Adaptimmune Therapeutics (ADAP) 0.0 $960k 800k 1.20
Corvus Pharmaceuticals (CRVS) 0.0 $816k 150k 5.44
Dermira Inc note 3.000% 5/1 0.0 $920k 1.0M 0.92
Pacira Pharmaceuticals Inc convertible security 0.0 $1.0M 1.0M 1.04
Applied Therapeutics (APLT) 0.0 $554k 20k 27.27
Rts/bristol-myers Squibb Compa 0.0 $557k 185k 3.01
Pfizer (PFE) 0.0 $407k 10k 39.13
Covetrus 0.0 $273k 21k 13.20