Rock Springs Capital Management

Rock Springs Capital Management as of June 30, 2019

Portfolio Holdings for Rock Springs Capital Management

Rock Springs Capital Management holds 135 positions in its portfolio as reported in the June 2019 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
UnitedHealth (UNH) 5.2 $144M 591k 244.01
Gw Pharmaceuticals Ads 3.8 $104M 605k 172.39
WellCare Health Plans 3.3 $91M 321k 285.07
Amarin Corp Spons Adr New (AMRN) 3.2 $88M 4.5M 19.39
Neurocrine Biosciences (NBIX) 3.1 $86M 1.0M 84.43
Intuitive Surgical Com New (ISRG) 2.9 $80M 153k 524.55
Hca Holdings (HCA) 2.2 $62M 455k 135.17
Pacira Pharmaceuticals (PCRX) 2.0 $54M 1.3M 43.49
Spark Therapeutics 1.9 $52M 505k 102.38
Encompass Health Corp (EHC) 1.8 $51M 805k 63.36
Sarepta Therapeutics (SRPT) 1.8 $49M 325k 151.95
Bristol Myers Squibb (BMY) 1.7 $48M 1.1M 45.35
EXACT Sciences Corporation (EXAS) 1.7 $47M 397k 118.04
Teleflex Incorporated (TFX) 1.6 $43M 130k 331.15
Boston Scientific Corporation (BSX) 1.5 $42M 970k 42.98
Coherus Biosciences (CHRS) 1.5 $42M 1.9M 22.10
Irhythm Technologies (IRTC) 1.4 $40M 500k 79.08
Penumbra (PEN) 1.4 $38M 239k 160.00
Vertex Pharmaceuticals Incorporated (VRTX) 1.3 $37M 203k 183.38
Acadia Healthcare (ACHC) 1.3 $37M 1.1M 34.95
Ultragenyx Pharmaceutical (RARE) 1.3 $37M 580k 63.50
Stryker Corporation (SYK) 1.3 $37M 179k 205.58
Edwards Lifesciences (EW) 1.2 $34M 184k 184.74
IDEXX Laboratories (IDXX) 1.2 $33M 120k 275.33
Alexion Pharmaceuticals 1.1 $32M 243k 130.98
Radius Health Com New 1.1 $31M 1.3M 24.36
Molina Healthcare (MOH) 1.1 $30M 206k 143.14
Insulet Corporation (PODD) 1.1 $29M 245k 119.38
Medicines Company 1.1 $29M 800k 36.47
Blueprint Medicines (BPMC) 1.0 $29M 308k 94.33
Adaptive Biotechnologies Cor (ADPT) 1.0 $29M 600k 48.30
Align Technology (ALGN) 1.0 $29M 105k 273.70
Cigna Corp (CI) 1.0 $29M 182k 157.55
Portola Pharmaceuticals 1.0 $27M 1.0M 27.13
Madrigal Pharmaceuticals (MDGL) 1.0 $27M 257k 104.81
Beigene Sponsored Adr (BGNE) 1.0 $27M 215k 123.95
Incyte Corporation (INCY) 1.0 $27M 312k 84.96
Invitae (NVTAQ) 1.0 $26M 1.1M 23.50
Argenx Se Sponsored Adr (ARGX) 0.9 $26M 182k 141.58
Baxter International (BAX) 0.9 $25M 301k 81.90
Ascendis Pharma A S Sponsored Adr (ASND) 0.9 $25M 214k 115.15
Ra Pharmaceuticals 0.9 $24M 804k 30.07
Pra Health Sciences 0.9 $24M 240k 99.15
Thermo Fisher Scientific (TMO) 0.9 $24M 81k 293.68
Alnylam Pharmaceuticals (ALNY) 0.9 $24M 328k 72.56
Epizyme 0.8 $23M 1.9M 12.55
Biogen Idec Call Option (BIIB) 0.8 $23M 98k 233.87
Insmed Com Par $.01 (INSM) 0.8 $23M 890k 25.60
Galapagos Nv Spon Adr (GLPG) 0.8 $21M 165k 128.93
Mirati Therapeutics 0.8 $21M 203k 103.00
Collegium Pharmaceutical Inc Common Stock Usd (COLL) 0.8 $21M 1.6M 13.15
Zai Lab Adr (ZLAB) 0.7 $19M 550k 34.87
Retrophin 0.7 $19M 950k 20.09
Phasebio Pharmaceuticals (PHASQ) 0.7 $19M 1.4M 13.12
Alder Biopharmaceuticals 0.7 $18M 1.6M 11.77
Intersect Ent 0.7 $18M 790k 22.76
Allakos (ALLK) 0.6 $18M 404k 43.33
West Pharmaceutical Services (WST) 0.6 $17M 138k 125.15
Celgene Corporation 0.6 $17M 185k 92.44
Sage Therapeutics (SAGE) 0.6 $17M 93k 183.09
Seattle Genetics 0.6 $17M 242k 69.21
Guardant Health (GH) 0.6 $16M 190k 86.33
Axonics Modulation Technolog (AXNX) 0.6 $16M 400k 40.97
Odonate Therapeutics Ord 0.6 $16M 430k 36.69
Audentes Therapeutics 0.6 $16M 410k 37.86
Biohaven Pharmaceutical Holding 0.5 $15M 344k 43.79
Global Blood Therapeutics In 0.5 $14M 265k 52.60
Fibrogen (FGEN) 0.5 $14M 306k 45.18
Agilent Technologies Inc C ommon (A) 0.5 $14M 183k 74.67
Translate Bio 0.5 $13M 1.0M 12.63
Nevro (NVRO) 0.5 $13M 196k 64.83
Obseva Sa 0.5 $13M 1.1M 11.31
Amicus Therapeutics (FOLD) 0.5 $13M 1.0M 12.48
Immunomedics 0.4 $12M 895k 13.87
Novocure Ord Shs (NVCR) 0.4 $12M 195k 63.23
Anaptysbio Inc Common (ANAB) 0.4 $12M 219k 56.42
BioMarin Pharmaceutical (BMRN) 0.4 $12M 143k 85.65
Axogen (AXGN) 0.4 $12M 604k 19.80
Zogenix Com New 0.4 $11M 235k 47.78
Rigel Pharmaceuticals Com New (RIGL) 0.4 $11M 4.2M 2.61
Abbvie (ABBV) 0.4 $11M 150k 72.72
Freshpet (FRPT) 0.4 $11M 235k 45.51
Theravance Biopharma (TBPH) 0.3 $9.0M 550k 16.33
Agios Pharmaceuticals (AGIO) 0.3 $8.5M 171k 49.88
Homology Medicines 0.3 $8.3M 425k 19.57
RTI Biologics 0.3 $8.3M 2.0M 4.25
Karuna Therapeutics Ord 0.3 $8.3M 414k 20.02
Achillion Pharmaceuticals 0.3 $7.9M 3.0M 2.68
Assembly Biosciences 0.3 $7.6M 560k 13.49
Dermira 0.3 $7.4M 775k 9.56
Puma Biotechnology (PBYI) 0.2 $6.8M 534k 12.71
Cymabay Therapeutics 0.2 $6.4M 900k 7.16
Spero Therapeutics (SPRO) 0.2 $6.0M 525k 11.51
Bluebird Bio (BLUE) 0.2 $6.0M 47k 127.19
Insmed Note 1.750% 1/1 (Principal) 0.2 $5.8M 6.0M 0.97
Mersana Therapeutics (MRSN) 0.2 $5.7M 1.4M 4.05
Anthem (ELV) 0.2 $5.6M 20k 282.20
Aeglea Biotherapeutics 0.2 $5.5M 800k 6.85
Ardelyx (ARDX) 0.2 $5.4M 2.0M 2.69
Global Cord Blood Corporatio SHS (CORBF) 0.2 $5.3M 925k 5.78
Rhythm Pharmaceuticals (RYTM) 0.2 $5.2M 235k 22.00
Ngm Biopharmaceuticals (NGM) 0.2 $5.1M 351k 14.64
Macrogenics (MGNX) 0.2 $5.1M 300k 16.97
Gamida Cell SHS (GMDA) 0.2 $5.1M 1.0M 5.08
Medicines Note 2.750% 7/1 (Principal) 0.2 $5.0M 5.0M 1.01
Momenta Pharmaceuticals 0.2 $5.0M 400k 12.45
Chiasma 0.2 $4.9M 650k 7.47
Alder Biopharmaceuticals Note 2.500% 2/0 (Principal) 0.2 $4.7M 5.0M 0.93
Aclaris Therapeutics (ACRS) 0.2 $4.4M 2.0M 2.19
Akero Therapeutics (AKRO) 0.2 $4.3M 225k 19.15
Compugen Ord (CGEN) 0.2 $4.2M 1.1M 3.84
Restorbio 0.1 $4.1M 400k 10.20
Myovant Sciences 0.1 $4.1M 450k 9.05
Intercept Pharmaceuticals In 0.1 $4.0M 50k 79.58
La Jolla Pharmaceutical Com Par $.0001 2 0.1 $3.9M 425k 9.25
Nabriva Therapeutics SHS 0.1 $3.9M 1.6M 2.43
Clovis Oncology 0.1 $3.8M 256k 14.87
Medicines Note 2.500% 1/1 (Principal) 0.1 $3.6M 3.0M 1.21
Adaptimmune Therapeutics Sponds Adr (ADAP) 0.1 $3.5M 875k 4.02
Arvinas Ord (ARVN) 0.1 $3.3M 150k 21.99
Five Prime Therapeutics 0.1 $3.2M 526k 6.03
Dynavax Technologies Corp Com New (DVAX) 0.1 $2.6M 650k 3.99
Correvio Pharma Corp 0.1 $2.6M 1.2M 2.16
Paratek Pharmaceuticals 0.1 $1.8M 450k 3.99
Corvus Pharmaceuticals (CRVS) 0.1 $1.5M 400k 3.74
Radius Health Note 3.000% 9/0 (Principal) 0.0 $1.4M 1.5M 0.91
Neurocrine Biosciences Note 2.250% 5/1 (Principal) 0.0 $1.3M 1.0M 1.32
Theravance Biopharma Note 3.250%11/0 (Principal) 0.0 $1.3M 1.5M 0.86
Kaleido Biosciences Ord (KLDO) 0.0 $1.2M 100k 11.60
Pacira Biosciences Note 2.375% 4/0 (Principal) 0.0 $1.0M 1.0M 1.03
Novavax Com New (NVAX) 0.0 $952k 163k 5.86
Dermira Note 3.000% 5/1 (Principal) 0.0 $865k 1.0M 0.86
Covetrus 0.0 $788k 32k 24.45
Heron Therapeutics (HRTX) 0.0 $558k 30k 18.60
Proteostasis Therapeutics In 0.0 $390k 400k 0.97