Rock Springs Capital Management LP Q2 2020 Filing
Filed August 14, 2020
Portfolio Value
$3.6T
Holdings
143
Report Date
Q2 2020
Filing Type
13F-HR
All Holdings (143 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | NBIXNEUROCRINE BIOSCIENCES INC | 1,366,500 | $166.7B | 4.57% | |
| 2 | UNHUNITEDHEALTH GROUP INC | 405,000 | $119.5B | 3.28% | |
| 3 | CNCCENTENE CORP DEL | 1,315,000 | $83.6B | 2.29% | |
| 4 | IRTCIRHYTHM TECHNOLOGIES INC | 651,000 | $75.4B | 2.07% | |
| 5 | 2L9BLUEPRINT MEDICINES CORP | 960,029 | $74.9B | 2.05% | |
| 6 | HUMHUMANA INC | 191,000 | $74.1B | 2.03% | |
| 7 | ISRGINTUITIVE SURGICAL INC | 120,000 | $68.4B | 1.88% | |
| 8 | ZLABZAI LAB LTD | 813,246 | $66.8B | 1.83% | |
| 9 | ARGXARGENX SE | 287,500 | $64.8B | 1.78% | |
| 10 | AGIOAGIOS PHARMACEUTICALS INC | 1,179,720 | $63.1B | 1.73% | |
| 11 | —IMMUNOMEDICS INC | 1,677,679 | $59.5B | 1.63% | |
| 12 | PODDINSULET CORP | 293,000 | $56.9B | 1.56% | |
| 13 | BAXBAXTER INTL INC | 645,000 | $55.5B | 1.52% | |
| 14 | SRPTSAREPTA THERAPEUTICS INC | 345,500 | $55.4B | 1.52% | |
| 15 | HCAHCA HEALTHCARE INC | 549,500 | $53.3B | 1.46% | |
| 16 | EHCENCOMPASS HEALTH CORP | 832,500 | $51.6B | 1.41% | |
| 17 | ACADACADIA PHARMACEUTICALS INC | 1,055,000 | $51.1B | 1.40% | |
| 18 | ALNYALNYLAM PHARMACEUTICALS INC | 345,000 | $51.1B | 1.40% | |
| 19 | RAREULTRAGENYX PHARMACEUTICAL IN | 646,841 | $50.6B | 1.39% | |
| 20 | PCRXPACIRA BIOSCIENCES | 925,000 | $48.5B | 1.33% | |
| 21 | BIIBBIOGEN INC | 180,000 | $48.2B | 1.32% | |
| 22 | BMRNBIOMARIN PHARMACEUTICAL INC | 387,500 | $47.8B | 1.31% | |
| 23 | NVV1NOVAVAX INC | 570,598 | $47.6B | 1.30% | |
| 24 | TFXTELEFLEX INCORPORATED | 130,000 | $47.3B | 1.30% | |
| 25 | NVROEURNEVRO CORP | 386,000 | $46.1B | 1.26% | |
| 26 | NVTA1EURINVITAE CORP | 1,511,127 | $45.8B | 1.26% | |
| 27 | —MERSANA THERAPEUTICS INC | 1,878,428 | $44.0B | 1.21% | |
| 28 | SGENEURSEATTLE GENETICS INC | 250,000 | $42.5B | 1.17% | |
| 29 | —PORTOLA PHARMACEUTICALS INC | 2,306,196 | $41.5B | 1.14% | |
| 30 | IDXXIDEXX LABS INC | 125,000 | $41.3B | 1.13% | |
| 31 | ONCBEIGENE LTD | 215,000 | $40.5B | 1.11% | |
| 32 | EWEDWARDS LIFESCIENCES CORP | 582,000 | $40.2B | 1.10% | |
| 33 | FRPTFRESHPET INC | 476,000 | $39.8B | 1.09% | |
| 34 | MRTXEURMIRATI THERAPEUTICS INC | 348,761 | $39.8B | 1.09% | |
| 35 | AFWALIGN TECHNOLOGY INC | 143,000 | $39.2B | 1.08% | |
| 36 | BSXBOSTON SCIENTIFIC CORP | 1,100,000 | $38.6B | 1.06% | |
| 37 | PENPENUMBRA INC | 207,000 | $37.0B | 1.02% | |
| 38 | EXASEXACT SCIENCES CORP | 424,000 | $36.9B | 1.01% | |
| 39 | VRTXVERTEX PHARMACEUTICALS INC | 125,000 | $36.3B | 1.00% | |
| 40 | CHRSCOHERUS BIOSCIENCES INC | 2,025,275 | $36.2B | 0.99% | |
| 41 | APLTAPPLIED THERAPEUTICS INC | 991,573 | $35.8B | 0.98% | |
| 42 | ASMBASSEMBLY BIOSCIENCES INC | 1,498,915 | $35.0B | 0.96% | |
| 43 | ARDXARDELYX INC | 5,015,109 | $34.7B | 0.95% | |
| 44 | GLPGGALAPAGOS NV | 175,000 | $34.5B | 0.95% | |
| 45 | —EPIZYME INC | 2,104,084 | $33.8B | 0.93% | |
| 46 | AMRNAMARIN CORP PLC | 4,650,000 | $32.2B | 0.88% | |
| 47 | ASNDASCENDIS PHARMA A S | 213,500 | $31.6B | 0.87% | |
| 48 | CICIGNA CORP NEW | 161,000 | $30.2B | 0.83% | |
| 49 | AMGNAMGEN INC | 126,000 | $29.7B | 0.82% | |
| 50 | MDGLMADRIGAL PHARMACEUTICALS INC | 254,268 | $28.8B | 0.79% | |
| 51 | ADPTADAPTIVE BIOTECHNOLOGIES COR | 575,000 | $27.8B | 0.76% | |
| 52 | INCYINCYTE CORP | 250,000 | $26.0B | 0.71% | |
| 53 | MIRMMIRUM PHARMACEUTICALS INC | 1,319,910 | $25.7B | 0.70% | |
| 54 | RPRXROYALTY PHARMA PLC | 500,000 | $24.3B | 0.67% | |
| 55 | INSPINSPIRE MED SYS INC | 265,000 | $23.1B | 0.63% | |
| 56 | KRTXKARUNA THERAPEUTICS INC | 203,312 | $22.7B | 0.62% | |
| 57 | ACHCACADIA HEALTHCARE COMPANY IN | 900,000 | $22.6B | 0.62% | |
| 58 | —RETROPHIN INC | 1,024,261 | $20.9B | 0.57% | |
| 59 | ALXNALEXION PHARMACEUTICALS INC | 183,500 | $20.6B | 0.56% | |
| 60 | COLLCOLLEGIUM PHARMACEUTICAL INC | 1,175,000 | $20.6B | 0.56% | |
| 61 | APREAPREA THERAPEUTICS INC | 518,290 | $20.1B | 0.55% | |
| 62 | ADAPYADAPTIMMUNE THERAPEUTICS PLC | 1,986,910 | $19.9B | 0.55% | |
| 63 | CYTK 4 11/15/26CYTOKINETICS INC | 8,000,000 | $19.1B | 0.52% | |
| 64 | ALLOALLOGENE THERAPEUTICS INC | 440,468 | $18.9B | 0.52% | |
| 65 | HQYHEALTHEQUITY INC | 320,100 | $18.8B | 0.52% | |
| 66 | —ODONATE THERAPEUTICS INC | 437,231 | $18.5B | 0.51% | |
| 67 | PHRPHREESIA INC | 651,500 | $18.4B | 0.51% | |
| 68 | QUREUNIQURE NV | 407,133 | $18.3B | 0.50% | |
| 69 | GBTUSDGLOBAL BLOOD THERAPEUTICS IN | 288,279 | $18.2B | 0.50% | |
| 70 | TBPHTHERAVANCE BIOPHARMA INC | 828,218 | $17.4B | 0.48% | |
| 71 | ALLKGUSDALLAKOS INC | 239,032 | $17.2B | 0.47% | |
| 72 | CGENCOMPUGEN LTD | 1,130,375 | $17.0B | 0.47% | |
| 73 | —MYOKARDIA INC | 172,716 | $16.7B | 0.46% | |
| 74 | —FUSION PHARMACEUTICALS INC | 937,041 | $16.4B | 0.45% | |
| 75 | ARVNARVINAS INC | 481,468 | $16.1B | 0.44% | |
| 76 | WSTWEST PHARMACEUTICAL SVSC INC | 71,000 | $16.1B | 0.44% | |
| 77 | GOSS 5 06/01/27GOSSAMER BIO INC | 15,573,000 | $15.7B | 0.43% | |
| 78 | —CONSTELLATION PHARMCETICLS I | 515,680 | $15.5B | 0.43% | |
| 79 | GHGUARDANT HEALTH INC | 190,000 | $15.4B | 0.42% | |
| 80 | AM6AMICUS THERAPEUTICS INC | 1,016,821 | $15.3B | 0.42% | |
| 81 | CVETUSDCOVETRUS INC | 837,500 | $15.0B | 0.41% | |
| 82 | —BIOHAVEN PHARMACTL HLDG CO L | 203,817 | $14.9B | 0.41% | |
| 83 | JNJJOHNSON & JOHNSON | 105,000 | $14.8B | 0.41% | |
| 84 | —GW PHARMACEUTICALS PLC | 120,043 | $14.7B | 0.40% | |
| 85 | DVAXDYNAVAX TECHNOLOGIES CORP | 1,660,120 | $14.7B | 0.40% | |
| 86 | AGLEUSDAEGLEA BIOTHERAPEUTICS INC | 1,590,528 | $14.7B | 0.40% | |
| 87 | —RADIUS HEALTH INC | 1,003,259 | $13.7B | 0.38% | |
| 88 | —MOMENTA PHARMACEUTICALS INC | 400,000 | $13.3B | 0.37% | |
| 89 | TGTXTG THERAPEUTICS INC | 682,926 | $13.3B | 0.36% | |
| 90 | —PPD INC | 487,500 | $13.1B | 0.36% | |
| 91 | CNMDCONMED CORP | 180,000 | $13.0B | 0.36% | |
| 92 | FGENEURFIBROGEN INC | 315,449 | $12.8B | 0.35% | |
| 93 | DCPHEURDECIPHERA PHARMACEUTICALS IN | 209,829 | $12.5B | 0.34% | |
| 94 | HCATHEALTH CATALYST INC | 425,000 | $12.4B | 0.34% | |
| 95 | —TRANSLATE BIO INC | 661,268 | $11.8B | 0.33% | |
| 96 | BFAMBRIGHT HORIZONS FAM SOL IN D | 98,500 | $11.5B | 0.32% | |
| 97 | RYTMRHYTHM PHARMACEUTICALS INC | 512,111 | $11.4B | 0.31% | |
| 98 | —ZOGENIX INC | 415,982 | $11.2B | 0.31% | |
| 99 | IMVTIMMUNOVANT INC | 452,319 | $11.0B | 0.30% | |
| 100 | RIGLUSDRIGEL PHARMACEUTICALS INC | 5,897,642 | $10.8B | 0.30% |
Page 1 of 2Next