Rock Springs Capital Management as of Dec. 31, 2018
Portfolio Holdings for Rock Springs Capital Management
Rock Springs Capital Management holds 133 positions in its portfolio as reported in the December 2018 quarterly 13F filing
| Company (Ticker) | Portfolio Weight | Valued At | Change in Shares | Share Count | Share Price |
|---|---|---|---|---|---|
| UnitedHealth (UNH) | 7.1 | $150M | 603k | 249.12 | |
| WellCare Health Plans | 4.3 | $92M | 390k | 236.09 | |
| Intuitive Surgical (ISRG) | 3.4 | $73M | 152k | 478.92 | |
| Amarin Corporation (AMRN) | 2.9 | $61M | 4.5M | 13.61 | |
| Gw Pharmaceuticals Plc ads | 2.8 | $58M | 600k | 97.39 | |
| Hca Holdings (HCA) | 2.7 | $57M | 455k | 124.45 | |
| Neurocrine Biosciences (NBIX) | 2.7 | $56M | 789k | 71.41 | |
| Pacira Pharmaceuticals (PCRX) | 2.5 | $54M | 1.3M | 43.02 | |
| Tesaro | 2.1 | $45M | 602k | 74.25 | |
| Encompass Health Corp (EHC) | 2.1 | $45M | 725k | 61.70 | |
| Molina Healthcare (MOH) | 1.9 | $40M | 342k | 116.22 | |
| Sarepta Therapeutics (SRPT) | 1.7 | $36M | 327k | 109.13 | |
| Loxo Oncology | 1.6 | $34M | 242k | 140.07 | |
| Vertex Pharmaceuticals Incorporated (VRTX) | 1.6 | $34M | 203k | 165.71 | |
| Teleflex Incorporated (TFX) | 1.6 | $34M | 130k | 258.48 | |
| Irhythm Technologies (IRTC) | 1.6 | $34M | 482k | 69.48 | |
| Boston Scientific Corporation (BSX) | 1.5 | $32M | 915k | 35.34 | |
| Beigene (BGNE) | 1.4 | $30M | 215k | 140.26 | |
| Edwards Lifesciences (EW) | 1.3 | $28M | 184k | 153.17 | |
| Stryker Corporation (SYK) | 1.3 | $28M | 179k | 156.75 | |
| Collegium Pharmaceutical Inc Common Stock Usd (COLL) | 1.3 | $28M | 1.6M | 17.17 | |
| Penumbra (PEN) | 1.3 | $28M | 225k | 122.20 | |
| Wright Medical Group Nv | 1.3 | $27M | 1.0M | 27.22 | |
| Madrigal Pharmaceuticals (MDGL) | 1.3 | $27M | 241k | 112.72 | |
| EXACT Sciences Corporation (EXAS) | 1.1 | $24M | 385k | 63.10 | |
| Alexion Pharmaceuticals | 1.1 | $24M | 243k | 97.36 | |
| Acadia Healthcare (ACHC) | 1.1 | $23M | 901k | 25.71 | |
| Align Technology (ALGN) | 1.0 | $22M | 105k | 209.43 | |
| Thermo Fisher Scientific (TMO) | 1.0 | $22M | 96k | 223.79 | |
| Allakos (ALLK) | 1.0 | $21M | 404k | 52.27 | |
| Spark Therapeutics | 1.0 | $21M | 538k | 39.14 | |
| IDEXX Laboratories (IDXX) | 1.0 | $21M | 111k | 186.02 | |
| Baxter International (BAX) | 0.9 | $20M | 301k | 65.82 | |
| Incyte Corporation (INCY) | 0.9 | $20M | 310k | 63.59 | |
| Ultragenyx Pharmaceutical (RARE) | 0.9 | $19M | 425k | 43.48 | |
| Pra Health Sciences | 0.9 | $18M | 200k | 91.96 | |
| Radius Health | 0.9 | $18M | 1.1M | 16.49 | |
| Argenx Se (ARGX) | 0.8 | $17M | 178k | 96.07 | |
| Galapagos Nv- (GLPG) | 0.8 | $16M | 178k | 91.74 | |
| West Pharmaceutical Services (WST) | 0.7 | $16M | 160k | 98.03 | |
| Invitae (NVTAQ) | 0.7 | $16M | 1.4M | 11.06 | |
| Ascendis Pharma A S (ASND) | 0.7 | $15M | 244k | 62.65 | |
| Biogen Idec (BIIB) | 0.7 | $15M | 50k | 300.92 | |
| Alder Biopharmaceuticals | 0.7 | $15M | 1.5M | 10.25 | |
| Inogen (INGN) | 0.7 | $15M | 117k | 124.17 | |
| Alnylam Pharmaceuticals (ALNY) | 0.7 | $14M | 194k | 72.91 | |
| Fibrogen (FGEN) | 0.7 | $14M | 306k | 46.28 | |
| Obseva Sa | 0.7 | $14M | 1.1M | 12.66 | |
| Medicines Company | 0.7 | $14M | 727k | 19.14 | |
| Theravance Biopharma (TBPH) | 0.7 | $14M | 550k | 25.59 | |
| Heron Therapeutics (HRTX) | 0.6 | $14M | 525k | 25.94 | |
| Ra Pharmaceuticals | 0.6 | $14M | 750k | 18.20 | |
| Intersect Ent | 0.6 | $13M | 465k | 28.18 | |
| Agilent Technologies Inc C ommon (A) | 0.6 | $12M | 183k | 67.46 | |
| Zimmer Holdings (ZBH) | 0.6 | $12M | 118k | 103.72 | |
| Exelixis (EXEL) | 0.6 | $12M | 621k | 19.67 | |
| Axogen (AXGN) | 0.6 | $12M | 604k | 20.43 | |
| Celgene Corporation | 0.6 | $12M | 185k | 64.09 | |
| Seattle Genetics | 0.5 | $12M | 203k | 56.66 | |
| Blueprint Medicines (BPMC) | 0.5 | $12M | 214k | 53.91 | |
| Immunomedics | 0.5 | $11M | 780k | 14.27 | |
| Insmed (INSM) | 0.5 | $11M | 850k | 13.12 | |
| BioMarin Pharmaceutical (BMRN) | 0.5 | $11M | 129k | 85.15 | |
| DaVita (DVA) | 0.5 | $11M | 215k | 51.46 | |
| Audentes Therapeutics | 0.5 | $11M | 500k | 21.32 | |
| Assembly Biosciences | 0.5 | $10M | 450k | 22.62 | |
| Epizyme | 0.5 | $9.9M | 1.6M | 6.16 | |
| Global Blood Therapeutics In | 0.5 | $10M | 245k | 41.05 | |
| Homology Medicines | 0.5 | $10M | 450k | 22.36 | |
| Rigel Pharmaceuticals | 0.5 | $9.7M | 4.2M | 2.30 | |
| Aclaris Therapeutics (ACRS) | 0.5 | $9.8M | 1.3M | 7.39 | |
| Amicus Therapeutics (FOLD) | 0.5 | $9.6M | 1.0M | 9.58 | |
| Biohaven Pharmaceutical Holding | 0.5 | $9.6M | 260k | 36.98 | |
| Puma Biotechnology (PBYI) | 0.4 | $9.3M | 457k | 20.35 | |
| Retrophin | 0.4 | $9.1M | 400k | 22.63 | |
| Anaptysbio Inc Common (ANAB) | 0.4 | $8.7M | 136k | 63.79 | |
| Zogenix | 0.4 | $8.6M | 235k | 36.46 | |
| Zai Lab (ZLAB) | 0.4 | $8.1M | 350k | 23.22 | |
| Guardant Health (GH) | 0.4 | $8.1M | 216k | 37.59 | |
| Inflarx Nv (IFRX) | 0.4 | $7.9M | 218k | 36.37 | |
| Freshpet (FRPT) | 0.4 | $7.6M | 235k | 32.16 | |
| Translate Bio | 0.4 | $7.6M | 1.0M | 7.50 | |
| RTI Biologics | 0.3 | $7.2M | 2.0M | 3.70 | |
| Novocure Ltd ord (NVCR) | 0.3 | $6.5M | 195k | 33.48 | |
| Mirati Therapeutics | 0.3 | $6.4M | 150k | 42.42 | |
| Odonate Therapeutics Ord | 0.3 | $6.3M | 445k | 14.08 | |
| Coherus Biosciences (CHRS) | 0.3 | $6.1M | 670k | 9.05 | |
| Axonics Modulation Technolog (AXNX) | 0.3 | $6.0M | 400k | 15.11 | |
| Novavax | 0.3 | $6.0M | 3.3M | 1.84 | |
| Portola Pharmaceuticals | 0.3 | $5.9M | 300k | 19.52 | |
| Global China Cord Blood Corp (CORBF) | 0.3 | $6.0M | 925k | 6.45 | |
| BioCryst Pharmaceuticals (BCRX) | 0.3 | $5.6M | 700k | 8.07 | |
| Myovant Sciences | 0.3 | $5.7M | 348k | 16.41 | |
| Rhythm Pharmaceuticals (RYTM) | 0.3 | $5.8M | 217k | 26.88 | |
| Aptinyx | 0.2 | $5.0M | 305k | 16.54 | |
| Cymabay Therapeutics | 0.2 | $4.8M | 614k | 7.87 | |
| Aeglea Biotherapeutics | 0.2 | $4.9M | 650k | 7.49 | |
| Clovis Oncology | 0.2 | $4.6M | 256k | 17.96 | |
| Five Prime Therapeutics | 0.2 | $4.7M | 505k | 9.30 | |
| Sage Therapeutics (SAGE) | 0.2 | $4.7M | 49k | 95.80 | |
| Momenta Pharmaceuticals | 0.2 | $4.4M | 400k | 11.04 | |
| Bluebird Bio (BLUE) | 0.2 | $4.5M | 45k | 99.20 | |
| Adaptimmune Therapeutics (ADAP) | 0.2 | $4.3M | 750k | 5.75 | |
| Insmed Inc convertible security | 0.2 | $4.3M | 6.0M | 0.72 | |
| Mersana Therapeutics (MRSN) | 0.2 | $4.1M | 1.0M | 4.08 | |
| Alder Biopharmaceuticals Inc convertible security | 0.2 | $4.0M | 5.0M | 0.80 | |
| Dermira | 0.2 | $3.7M | 517k | 7.19 | |
| Medicines Company 2.750000 07/15/2023 bond | 0.2 | $3.8M | 5.0M | 0.76 | |
| Achillion Pharmaceuticals | 0.2 | $3.7M | 2.3M | 1.59 | |
| Ardelyx (ARDX) | 0.2 | $3.6M | 2.0M | 1.79 | |
| Dynavax Technologies (DVAX) | 0.2 | $3.5M | 380k | 9.15 | |
| Restorbio | 0.2 | $3.4M | 400k | 8.62 | |
| Clementia | 0.1 | $3.2M | 275k | 11.76 | |
| Spero Therapeutics (SPRO) | 0.1 | $3.2M | 525k | 6.15 | |
| Correvio Pharma Corp | 0.1 | $3.0M | 1.2M | 2.49 | |
| La Jolla Pharmaceuticl Com Par | 0.1 | $2.6M | 277k | 9.43 | |
| Medicines Company conv | 0.1 | $2.6M | 3.0M | 0.86 | |
| Phasebio Pharmaceuticals | 0.1 | $2.6M | 835k | 3.09 | |
| Compugen (CGEN) | 0.1 | $2.4M | 1.1M | 2.17 | |
| Paratek Pharmaceuticals | 0.1 | $2.3M | 450k | 5.13 | |
| Nabriva Therapeutics | 0.1 | $2.3M | 1.6M | 1.46 | |
| G1 Therapeutics | 0.1 | $1.9M | 100k | 19.15 | |
| Arvinas Ord (ARVN) | 0.1 | $1.9M | 150k | 12.85 | |
| Chiasma | 0.1 | $1.6M | 525k | 3.11 | |
| Corvus Pharmaceuticals (CRVS) | 0.1 | $1.5M | 400k | 3.67 | |
| Theravance Biopharma Inc note 3.250%11/0 | 0.1 | $1.5M | 1.5M | 1.03 | |
| Solid Biosciences | 0.1 | $1.6M | 59k | 26.80 | |
| Proteostasis Therapeutics In | 0.1 | $1.3M | 400k | 3.24 | |
| Neurocrine Biosciences Inc Note 2.250 5/1 | 0.1 | $1.2M | 1.0M | 1.20 | |
| Macrogenics (MGNX) | 0.1 | $1.0M | 81k | 12.69 | |
| Radius Health Inc note 3.000% 9/0 | 0.1 | $1.2M | 1.5M | 0.77 | |
| Pacira Pharmaceuticals Inc convertible security | 0.1 | $990k | 1.0M | 0.99 | |
| Dermira Inc note 3.000% 5/1 | 0.0 | $780k | 1.0M | 0.78 |
