Rock Springs Capital Management

Rock Springs Capital Management as of Sept. 30, 2018

Portfolio Holdings for Rock Springs Capital Management

Rock Springs Capital Management holds 144 positions in its portfolio as reported in the September 2018 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
UnitedHealth (UNH) 5.7 $157M 589k 266.04
Intuitive Surgical (ISRG) 2.9 $81M 141k 574.00
Molina Healthcare (MOH) 2.9 $81M 545k 148.70
Neurocrine Biosciences (NBIX) 2.9 $79M 645k 122.95
WellCare Health Plans 2.7 $76M 236k 320.49
Madrigal Pharmaceuticals (MDGL) 2.6 $73M 342k 214.13
Amarin Corporation (AMRN) 2.5 $70M 4.3M 16.27
Gw Pharmaceuticals Plc ads 2.5 $69M 400k 172.74
Pacira Pharmaceuticals (PCRX) 2.3 $64M 1.3M 49.15
Hca Holdings (HCA) 2.3 $63M 455k 139.12
Encompass Health Corp (EHC) 1.9 $53M 677k 77.95
Sarepta Therapeutics (SRPT) 1.8 $50M 311k 161.51
Irhythm Technologies (IRTC) 1.6 $45M 480k 94.66
Alexion Pharmaceuticals 1.5 $42M 300k 139.01
Vertex Pharmaceuticals Incorporated (VRTX) 1.4 $38M 196k 192.74
Beigene (BGNE) 1.3 $37M 215k 172.22
Penumbra (PEN) 1.3 $35M 235k 149.70
Loxo Oncology 1.3 $35M 203k 170.83
Teleflex Incorporated (TFX) 1.2 $33M 124k 266.09
Celgene Corporation 1.2 $32M 360k 89.49
Stryker Corporation (SYK) 1.1 $32M 179k 177.68
Pra Health Sciences 1.1 $32M 288k 110.19
Edwards Lifesciences (EW) 1.1 $31M 180k 174.10
Boston Scientific Corporation (BSX) 1.1 $31M 800k 38.50
Abbvie (ABBV) 1.1 $31M 325k 94.58
Inogen (INGN) 1.1 $31M 126k 244.12
EXACT Sciences Corporation (EXAS) 1.1 $30M 385k 78.92
Zimmer Holdings (ZBH) 1.1 $30M 225k 131.47
DaVita (DVA) 1.1 $29M 409k 71.63
Spark Therapeutics 1.1 $29M 538k 54.55
Wright Medical Group Nv 1.1 $29M 1.0M 29.02
Tesaro 1.0 $29M 735k 39.01
Alder Biopharmaceuticals 1.0 $27M 1.6M 16.65
Align Technology (ALGN) 1.0 $26M 68k 391.21
Acadia Healthcare (ACHC) 0.9 $25M 700k 35.20
Incyte Corporation (INCY) 0.9 $24M 352k 69.08
Collegium Pharmaceutical Inc Common Stock Usd (COLL) 0.9 $24M 1.7M 14.74
Thermo Fisher Scientific (TMO) 0.8 $23M 96k 244.08
Invitae (NVTAQ) 0.8 $23M 1.4M 16.73
Baxter International (BAX) 0.8 $23M 297k 77.09
Radius Health 0.8 $23M 1.3M 17.80
Puma Biotechnology (PBYI) 0.8 $22M 488k 45.85
IDEXX Laboratories (IDXX) 0.8 $21M 84k 249.66
Medicines Company 0.8 $21M 690k 29.91
Axogen (AXGN) 0.7 $20M 544k 36.85
Obseva Sa 0.7 $20M 1.1M 18.03
West Pharmaceutical Services (WST) 0.7 $20M 160k 123.47
Galapagos Nv- (GLPG) 0.7 $20M 178k 112.43
Fibrogen (FGEN) 0.7 $19M 306k 60.75
Assembly Biosciences 0.7 $18M 490k 37.14
Allakos (ALLK) 0.7 $18M 405k 44.99
Insmed (INSM) 0.7 $18M 890k 20.22
Theravance Biopharma (TBPH) 0.7 $18M 550k 32.67
Biogen Idec (BIIB) 0.6 $18M 50k 353.32
Alnylam Pharmaceuticals (ALNY) 0.6 $17M 197k 87.52
Ascendis Pharma A S (ASND) 0.6 $17M 244k 70.86
Arena Pharmaceuticals 0.6 $17M 375k 46.02
Audentes Therapeutics 0.6 $17M 425k 39.59
Heron Therapeutics (HRTX) 0.6 $17M 525k 31.65
Anaptysbio Inc Common (ANAB) 0.6 $17M 165k 99.77
Immunomedics 0.6 $16M 775k 20.83
Blueprint Medicines (BPMC) 0.6 $16M 200k 78.06
Endocyte 0.6 $15M 850k 17.76
Ultragenyx Pharmaceutical (RARE) 0.6 $15M 200k 76.34
Ra Pharmaceuticals 0.5 $14M 750k 18.09
Rigel Pharmaceuticals 0.5 $13M 4.1M 3.21
Epizyme 0.5 $13M 1.2M 10.60
Intersect Ent 0.5 $13M 460k 28.75
Elanco Animal Health (ELAN) 0.5 $13M 375k 34.89
Aclaris Therapeutics (ACRS) 0.5 $13M 880k 14.52
Momenta Pharmaceuticals 0.5 $13M 475k 26.30
Argenx Se (ARGX) 0.5 $13M 165k 75.84
BioMarin Pharmaceutical (BMRN) 0.4 $12M 125k 96.97
Amicus Therapeutics (FOLD) 0.4 $12M 1.0M 12.09
G1 Therapeutics 0.4 $12M 233k 52.29
Agilent Technologies Inc C ommon (A) 0.4 $12M 164k 70.54
Retrophin 0.4 $12M 400k 28.73
Zogenix 0.4 $12M 235k 49.60
Mirati Therapeutics 0.4 $11M 240k 47.10
Ardelyx (ARDX) 0.4 $11M 2.5M 4.35
Coherus Biosciences (CHRS) 0.4 $11M 670k 16.50
Homology Medicines 0.4 $11M 470k 22.86
Exelixis (EXEL) 0.4 $11M 595k 17.72
Adaptimmune Therapeutics (ADAP) 0.4 $10M 750k 13.56
Translate Bio 0.4 $10M 1.0M 10.00
Mersana Therapeutics (MRSN) 0.4 $10M 1.0M 10.00
Biohaven Pharmaceutical Holding 0.3 $9.8M 260k 37.55
Myovant Sciences 0.3 $9.2M 348k 26.55
RTI Biologics 0.3 $8.8M 2.0M 4.50
Achillion Pharmaceuticals 0.3 $8.8M 2.4M 3.68
Aptinyx 0.3 $8.8M 305k 28.96
Portola Pharmaceuticals 0.3 $8.6M 324k 26.63
Odonate Therapeutics Ord 0.3 $8.5M 436k 19.41
Five Prime Therapeutics 0.3 $8.3M 598k 13.92
Clovis Oncology 0.3 $8.0M 271k 29.37
Enanta Pharmaceuticals (ENTA) 0.3 $7.9M 93k 85.46
Bluebird Bio (BLUE) 0.3 $7.7M 53k 146.00
Kura Oncology (KURA) 0.3 $7.1M 405k 17.50
Sage Therapeutics (SAGE) 0.2 $6.9M 49k 141.24
Cymabay Therapeutics 0.2 $6.8M 614k 11.08
Zai Lab (ZLAB) 0.2 $6.8M 350k 19.48
Dermira 0.2 $6.5M 600k 10.90
Aeglea Biotherapeutics 0.2 $6.2M 650k 9.57
Rhythm Pharmaceuticals (RYTM) 0.2 $6.3M 215k 29.17
Global China Cord Blood Corp (CORBF) 0.2 $6.5M 925k 6.99
Novavax 0.2 $6.1M 3.3M 1.88
Clearside Biomedical (CLSD) 0.2 $6.0M 975k 6.15
Inflarx Nv (IFRX) 0.2 $6.1M 178k 34.32
Restorbio 0.2 $6.1M 400k 15.14
Macrogenics (MGNX) 0.2 $5.9M 275k 21.44
La Jolla Pharmaceuticl Com Par 0.2 $5.7M 282k 20.13
Global Blood Therapeutics In 0.2 $5.7M 150k 38.00
Adverum Biotechnologies 0.2 $5.4M 900k 6.05
Spero Therapeutics (SPRO) 0.2 $5.5M 525k 10.51
BioCryst Pharmaceuticals (BCRX) 0.2 $5.3M 700k 7.63
Alder Biopharmaceuticals Inc convertible security 0.2 $5.4M 5.0M 1.07
Corvus Pharmaceuticals (CRVS) 0.2 $4.9M 575k 8.58
Nabriva Therapeutics 0.2 $4.9M 1.8M 2.70
Insmed Inc convertible security 0.2 $5.1M 6.0M 0.85
Correvio Pharma Corp 0.2 $4.8M 1.2M 4.02
Paratek Pharmaceuticals 0.2 $4.4M 450k 9.70
Medicines Company 2.750000 07/15/2023 bond 0.2 $4.6M 5.0M 0.91
Solid Biosciences 0.2 $4.5M 95k 47.18
Compugen (CGEN) 0.1 $4.2M 1.1M 3.85
Intra Cellular Therapies (ITCI) 0.1 $4.1M 188k 21.70
Clementia 0.1 $3.8M 345k 11.15
Viking Therapeutics (VKTX) 0.1 $3.5M 200k 17.42
Dynavax Technologies (DVAX) 0.1 $3.3M 268k 12.40
Allergan 0.1 $3.4M 18k 190.49
Medicines Company conv 0.1 $3.2M 3.0M 1.08
Menlo Therapeutics 0.1 $3.3M 330k 9.85
Arvinas Ord (ARVN) 0.1 $2.5M 150k 16.87
Chiasma 0.1 $1.9M 525k 3.60
Seres Therapeutics (MCRB) 0.1 $1.7M 220k 7.59
Theravance Biopharma Inc note 3.250%11/0 0.1 $1.8M 1.5M 1.18
Neurocrine Biosciences Inc Note 2.250 5/1 0.1 $1.7M 1.0M 1.71
Cidara Therapeutics Inc Common Stock Usd 0.0001 0.1 $1.3M 300k 4.40
Novocure Ltd ord (NVCR) 0.1 $1.3M 25k 52.40
Scynexis 0.0 $984k 820k 1.20
Radius Health Inc note 3.000% 9/0 0.0 $1.2M 1.5M 0.77
Pacira Pharmaceuticals Inc convertible security 0.0 $1.1M 1.0M 1.06
Urovant Sciences 0.0 $1.2M 100k 12.00
Dermira Inc note 3.000% 5/1 0.0 $830k 1.0M 0.83
Gtx Inc Del 0.0 $79k 50k 1.58