Rock Springs Capital Management LP Q3 2019 Filing
Filed November 14, 2019
Portfolio Value
$2.5T
Holdings
138
Report Date
Q3 2019
Filing Type
13F-HR
All Holdings (138 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | UNHUNITEDHEALTH GROUP INC | 591,000 | $128.4B | 5.12% | |
| 2 | NBIXNEUROCRINE BIOSCIENCES INC | 1,232,500 | $111.1B | 4.43% | |
| 3 | WCGEURWELLCARE HEALTH PLANS INC | 320,500 | $83.1B | 3.31% | |
| 4 | ISRGINTUITIVE SURGICAL INC | 152,500 | $82.3B | 3.28% | |
| 5 | AMRNAMARIN CORP PLC | 4,650,000 | $70.5B | 2.81% | |
| 6 | HCAHCA HEALTHCARE INC | 467,500 | $56.3B | 2.24% | |
| 7 | EHCENCOMPASS HEALTH CORP | 815,000 | $51.6B | 2.05% | |
| 8 | —SPARK THERAPEUTICS INC | 505,371 | $49.0B | 1.95% | |
| 9 | TFXTELEFLEX INC | 130,000 | $44.2B | 1.76% | |
| 10 | PCRXPACIRA BIOSCIENCES | 1,150,000 | $43.8B | 1.74% | |
| 11 | PODDINSULET CORP | 260,500 | $43.0B | 1.71% | |
| 12 | IRTCIRHYTHM TECHNOLOGIES INC | 555,000 | $41.1B | 1.64% | |
| 13 | EWEDWARDS LIFESCIENCES CORP | 183,500 | $40.4B | 1.61% | |
| 14 | ACHCACADIA HEALTHCARE COMPANY IN | 1,290,000 | $40.1B | 1.60% | |
| 15 | —MEDICINES CO | 800,000 | $40.0B | 1.59% | |
| 16 | ABBVABBVIE INC | 525,000 | $39.8B | 1.58% | |
| 17 | BSXBOSTON SCIENTIFIC CORP | 970,000 | $39.5B | 1.57% | |
| 18 | EXASEXACT SCIENCES CORP | 431,750 | $39.0B | 1.55% | |
| 19 | SYKSTRYKER CORP | 179,000 | $38.7B | 1.54% | |
| 20 | CHRSCOHERUS BIOSCIENCES INC | 1,880,000 | $38.1B | 1.52% | |
| 21 | VRTXVERTEX PHARMACEUTICALS INC | 203,000 | $34.4B | 1.37% | |
| 22 | BAXBAXTER INTL INC | 385,000 | $33.7B | 1.34% | |
| 23 | —RADIUS HEALTH INC | 1,300,000 | $33.5B | 1.33% | |
| 24 | CICIGNA CORP NEW | 216,900 | $32.9B | 1.31% | |
| 25 | IDXXIDEXX LABS INC | 120,200 | $32.7B | 1.30% | |
| 26 | PENPENUMBRA INC | 242,500 | $32.6B | 1.30% | |
| 27 | —PORTOLA PHARMACEUTICALS INC | 1,050,000 | $28.2B | 1.12% | |
| 28 | GLPGGALAPAGOS NV | 175,000 | $26.7B | 1.06% | |
| 29 | ALNYALNYLAM PHARMACEUTICALS INC | 330,500 | $26.6B | 1.06% | |
| 30 | ONCBEIGENE LTD | 214,800 | $26.3B | 1.05% | |
| 31 | RAREULTRAGENYX PHARMACEUTICAL IN | 608,000 | $26.0B | 1.04% | |
| 32 | SRPTSAREPTA THERAPEUTICS INC | 337,500 | $25.4B | 1.01% | |
| 33 | —ALDER BIOPHARMACEUTICALS INC | 1,300,000 | $24.5B | 0.98% | |
| 34 | 2L9BLUEPRINT MEDICINES CORP | 333,500 | $24.5B | 0.98% | |
| 35 | AMGNAMGEN INC | 126,000 | $24.4B | 0.97% | |
| 36 | TMOTHERMO FISHER SCIENTIFIC INC | 81,000 | $23.6B | 0.94% | |
| 37 | MOHMOLINA HEALTHCARE INC | 214,500 | $23.5B | 0.94% | |
| 38 | MDGLMADRIGAL PHARMACEUTICALS INC | 272,400 | $23.5B | 0.94% | |
| 39 | INCYINCYTE CORP | 312,300 | $23.2B | 0.92% | |
| 40 | ALLKGUSDALLAKOS INC | 290,000 | $22.8B | 0.91% | |
| 41 | NVTA1EURINVITAE CORP | 1,125,000 | $21.7B | 0.86% | |
| 42 | WSTWEST PHARMACEUTICAL SVSC INC | 152,500 | $21.6B | 0.86% | |
| 43 | NVROEURNEVRO CORP | 242,500 | $20.8B | 0.83% | |
| 44 | ARGXARGENX SE | 181,700 | $20.7B | 0.83% | |
| 45 | SGENEURSEATTLE GENETICS INC | 242,000 | $20.7B | 0.82% | |
| 46 | ASNDASCENDIS PHARMA A S | 213,500 | $20.6B | 0.82% | |
| 47 | AFWALIGN TECHNOLOGY INC | 110,900 | $20.1B | 0.80% | |
| 48 | MRTXEURMIRATI THERAPEUTICS INC | 257,500 | $20.1B | 0.80% | |
| 49 | —RA PHARMACEUTICALS INC | 835,000 | $19.7B | 0.79% | |
| 50 | —EPIZYME INC | 1,850,100 | $19.1B | 0.76% | |
| 51 | ZLABZAI LAB LTD | 575,000 | $18.6B | 0.74% | |
| 52 | CELGCELGENE CORP | 185,150 | $18.4B | 0.73% | |
| 53 | COLLCOLLEGIUM PHARMACEUTICAL INC | 1,577,893 | $18.1B | 0.72% | |
| 54 | FRPTFRESHPET INC | 355,250 | $17.7B | 0.70% | |
| 55 | ADPTADAPTIVE BIOTECHNOLOGIES COR | 545,000 | $16.8B | 0.67% | |
| 56 | IM8NINSMED INC | 890,000 | $15.7B | 0.63% | |
| 57 | —INTERSECT ENT INC | 872,500 | $14.8B | 0.59% | |
| 58 | ARDXARDELYX INC | 3,055,261 | $14.4B | 0.57% | |
| 59 | —BIOHAVEN PHARMACTL HLDG CO L | 343,500 | $14.3B | 0.57% | |
| 60 | —ACHILLION PHARMACEUTICALS IN | 3,825,000 | $13.8B | 0.55% | |
| 61 | SG7SAGE THERAPEUTICS INC | 92,500 | $13.0B | 0.52% | |
| 62 | NVCRNOVOCURE LTD | 172,500 | $12.9B | 0.51% | |
| 63 | GBTUSDGLOBAL BLOOD THERAPEUTICS IN | 265,000 | $12.9B | 0.51% | |
| 64 | ASMBASSEMBLY BIOSCIENCES INC | 1,300,000 | $12.8B | 0.51% | |
| 65 | GHGUARDANT HEALTH INC | 190,000 | $12.1B | 0.48% | |
| 66 | —IMMUNOMEDICS INC | 895,000 | $11.9B | 0.47% | |
| 67 | —AUDENTES THERAPEUTICS INC | 410,000 | $11.5B | 0.46% | |
| 68 | AGIOAGIOS PHARMACEUTICALS INC | 352,500 | $11.4B | 0.46% | |
| 69 | —OBSEVA SA | 1,360,000 | $11.3B | 0.45% | |
| 70 | FGENEURFIBROGEN INC | 306,000 | $11.3B | 0.45% | |
| 71 | —ODONATE THERAPEUTICS INC | 430,000 | $11.2B | 0.45% | |
| 72 | —RETROPHIN INC | 950,000 | $11.0B | 0.44% | |
| 73 | —GW PHARMACEUTICALS PLC | 95,000 | $10.9B | 0.44% | |
| 74 | TBPHTHERAVANCE BIOPHARMA INC | 550,000 | $10.7B | 0.43% | |
| 75 | ABTABBOTT LABS | 122,500 | $10.3B | 0.41% | |
| 76 | —TRANSLATE BIO INC | 1,025,000 | $10.2B | 0.40% | |
| 77 | —ZOGENIX INC | 250,000 | $10.0B | 0.40% | |
| 78 | CNCCENTENE CORP DEL | 229,800 | $9.9B | 0.40% | |
| 79 | BMRNBIOMARIN PHARMACEUTICAL INC | 142,500 | $9.6B | 0.38% | |
| 80 | PHRPHREESIA INC | 361,000 | $8.8B | 0.35% | |
| 81 | DCPHEURDECIPHERA PHARMACEUTICALS IN | 250,000 | $8.5B | 0.34% | |
| 82 | ANABANAPTYSBIO INC | 240,000 | $8.4B | 0.33% | |
| 83 | AM6AMICUS THERAPEUTICS INC | 1,000,000 | $8.0B | 0.32% | |
| 84 | MIRMMIRUM PHARMACEUTICALS INC | 790,048 | $7.9B | 0.32% | |
| 85 | RIGLUSDRIGEL PHARMACEUTICALS INC | 4,200,000 | $7.9B | 0.31% | |
| 86 | FIXXEURHOMOLOGY MEDICINES INC | 425,000 | $7.7B | 0.31% | |
| 87 | QUREUNIQURE NV | 194,500 | $7.7B | 0.31% | |
| 88 | JNJJOHNSON & JOHNSON | 56,000 | $7.2B | 0.29% | |
| 89 | ACADACADIA PHARMACEUTICALS INC | 187,000 | $6.7B | 0.27% | |
| 90 | DVAXDYNAVAX TECHNOLOGIES CORP | 1,850,000 | $6.6B | 0.26% | |
| 91 | RYTMRHYTHM PHARMACEUTICALS INC | 305,000 | $6.6B | 0.26% | |
| 92 | ELVANTHEM INC | 27,000 | $6.5B | 0.26% | |
| 93 | PBYIPUMA BIOTECHNOLOGY INC | 587,400 | $6.3B | 0.25% | |
| 94 | AGLEUSDAEGLEA BIOTHERAPEUTICS INC | 800,000 | $6.2B | 0.25% | |
| 95 | —MEDICINES CO | 5,000,000 | $6.0B | 0.24% | |
| 96 | —PHASEBIO PHARMACEUTICALS INC | 1,416,900 | $5.9B | 0.24% | |
| 97 | KRTXKARUNA THERAPEUTICS INC | 360,400 | $5.9B | 0.23% | |
| 98 | SPROSPERO THERAPEUTICS INC | 525,000 | $5.6B | 0.22% | |
| 99 | —RTI SURGICAL HOLDINGS INC | 1,950,000 | $5.6B | 0.22% | |
| 100 | AXNX*AXONICS MODULATION TECH INC | 202,500 | $5.5B | 0.22% |
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