Rock Springs Capital Management LP Q3 2022 Filing
Filed November 14, 2022
Portfolio Value
$3.9T
Holdings
127
Report Date
Q3 2022
Filing Type
13F-HR
All Holdings (127 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | HUMHUMANA INC | 426,500 | $206.9B | 5.34% | |
| 2 | AGLAGILON HEALTH INC | 7,747,500 | $181.4B | 4.69% | |
| 3 | IMCRIMMUNOCORE HLDGS PLC | 3,493,743 | $164.0B | 4.24% | |
| 4 | UNHUNITEDHEALTH GROUP INC | 269,500 | $136.1B | 3.52% | |
| 5 | ARGXARGENX SE | 350,000 | $123.6B | 3.19% | |
| 6 | NBIXNEUROCRINE BIOSCIENCES INC | 1,122,500 | $119.2B | 3.08% | |
| 7 | PODDINSULET CORP | 518,500 | $118.9B | 3.07% | |
| 8 | EVHEVOLENT HEALTH INC | 3,262,500 | $117.2B | 3.03% | |
| 9 | 2L9BLUEPRINT MEDICINES CORP | 1,538,195 | $101.4B | 2.62% | |
| 10 | KRTXKARUNA THERAPEUTICS INC | 413,762 | $93.1B | 2.40% | |
| 11 | PENPENUMBRA INC | 476,000 | $90.3B | 2.33% | |
| 12 | AGIOAGIOS PHARMACEUTICALS INC | 3,057,869 | $86.5B | 2.23% | |
| 13 | IDXXIDEXX LABS INC | 224,315 | $73.1B | 1.89% | |
| 14 | AFWALIGN TECHNOLOGY INC | 344,000 | $71.2B | 1.84% | |
| 15 | CERE1EURCEREVEL THERAPEUTICS HLDNG I | 2,499,148 | $70.6B | 1.82% | |
| 16 | ALNYALNYLAM PHARMACEUTICALS INC | 332,500 | $66.6B | 1.72% | |
| 17 | ACHCACADIA HEALTHCARE COMPANY IN | 845,000 | $66.1B | 1.71% | |
| 18 | ACRSACLARIS THERAPEUTICS INC | 3,961,249 | $62.4B | 1.61% | |
| 19 | MRTXEURMIRATI THERAPEUTICS INC | 866,776 | $60.5B | 1.56% | |
| 20 | ISRGINTUITIVE SURGICAL INC | 298,500 | $56.0B | 1.45% | |
| 21 | PCRXPACIRA BIOSCIENCES INC | 1,017,500 | $54.1B | 1.40% | |
| 22 | EWEDWARDS LIFESCIENCES CORP | 631,000 | $52.1B | 1.35% | |
| 23 | SWAVUSDSHOCKWAVE MED INC | 180,100 | $50.1B | 1.29% | |
| 24 | RAREULTRAGENYX PHARMACEUTICAL IN | 1,187,992 | $49.2B | 1.27% | |
| 25 | SRPTSAREPTA THERAPEUTICS INC | 430,000 | $47.5B | 1.23% | |
| 26 | AKROAKERO THERAPEUTICS INC | 1,369,973 | $46.6B | 1.20% | |
| 27 | HZNPHORIZON THERAPEUTICS PUB L | 727,000 | $45.0B | 1.16% | |
| 28 | WSTWEST PHARMACEUTICAL SVSC INC | 180,500 | $44.4B | 1.15% | |
| 29 | ASNDASCENDIS PHARMA A/S | 425,500 | $43.9B | 1.13% | |
| 30 | RYTMRHYTHM PHARMACEUTICALS INC | 1,760,865 | $43.1B | 1.11% | |
| 31 | XENEXENON PHARMACEUTICALS INC | 1,155,961 | $41.7B | 1.08% | |
| 32 | PRTAPROTHENA CORP PLC | 678,462 | $41.1B | 1.06% | |
| 33 | ZLABZAI LAB LTD | 1,192,400 | $40.8B | 1.05% | |
| 34 | BAXBAXTER INTL INC | 755,500 | $40.7B | 1.05% | |
| 35 | —CINCOR PHARMA INC | 1,205,856 | $39.6B | 1.02% | |
| 36 | DC4DEXCOM INC | 490,500 | $39.5B | 1.02% | |
| 37 | —PROMETHEUS BIOSCIENCES INC | 645,407 | $38.1B | 0.98% | |
| 38 | MIRMMIRUM PHARMACEUTICALS INC | 1,795,733 | $37.7B | 0.97% | |
| 39 | SGENUSDSEAGEN INC | 272,000 | $37.2B | 0.96% | |
| 40 | IRTCIRHYTHM TECHNOLOGIES INC | 293,250 | $36.7B | 0.95% | |
| 41 | NVROEURNEVRO CORP | 787,000 | $36.7B | 0.95% | |
| 42 | FRPTFRESHPET INC | 700,000 | $35.1B | 0.91% | |
| 43 | CVETUSDCOVETRUS INC | 1,678,800 | $35.1B | 0.91% | |
| 44 | PHRPHREESIA INC | 1,302,500 | $33.2B | 0.86% | |
| 45 | —ABCAM PLC | 2,032,500 | $30.5B | 0.79% | |
| 46 | —MERSANA THERAPEUTICS INC | 4,075,958 | $27.6B | 0.71% | |
| 47 | ACCDEURACCOLADE INC | 2,274,000 | $26.0B | 0.67% | |
| 48 | XLVSELECT SECTOR SPDR TR | 200,000 | $24.2B | 0.63% | |
| 49 | TVTXTRAVERE THERAPEUTICS INC | 951,650 | $23.4B | 0.61% | |
| 50 | KYMRKYMERA THERAPEUTICS INC | 1,046,743 | $22.8B | 0.59% | |
| 51 | BMRNBIOMARIN PHARMACEUTICAL INC | 264,500 | $22.4B | 0.58% | |
| 52 | BCRXBIOCRYST PHARMACEUTICALS INC | 1,712,507 | $21.6B | 0.56% | |
| 53 | CYTKCYTOKINETICS INC | 443,000 | $21.5B | 0.55% | |
| 54 | MDGLMADRIGAL PHARMACEUTICALS INC | 317,485 | $20.6B | 0.53% | |
| 55 | VERVVERVE THERAPEUTICS INC | 558,837 | $19.2B | 0.50% | |
| 56 | GOSSGOSSAMER BIO INC | 1,586,962 | $19.0B | 0.49% | |
| 57 | EXASEXACT SCIENCES CORP | 578,600 | $18.8B | 0.49% | |
| 58 | CNMDCONMED CORP | 233,000 | $18.7B | 0.48% | |
| 59 | AURAAURA BIOSCIENCES INC | 1,015,757 | $18.4B | 0.48% | |
| 60 | LEGNLEGEND BIOTECH CORP | 450,466 | $18.4B | 0.47% | |
| 61 | DVAXDYNAVAX TECHNOLOGIES CORP | 1,683,358 | $17.6B | 0.45% | |
| 62 | —OLINK HLDG AB | 1,445,000 | $17.5B | 0.45% | |
| 63 | WRBYWARBY PARKER INC | 1,309,475 | $17.5B | 0.45% | |
| 64 | IMTXIMMATICS N.V | 1,681,224 | $16.8B | 0.43% | |
| 65 | ANABANAPTYSBIO INC | 576,600 | $14.7B | 0.38% | |
| 66 | AZTAAZENTA INC | 330,200 | $14.2B | 0.37% | |
| 67 | RLAYRELAY THERAPEUTICS INC | 618,267 | $13.8B | 0.36% | |
| 68 | NVCRNOVOCURE LTD | 175,000 | $13.3B | 0.34% | |
| 69 | LFSTLIFESTANCE HEALTH GROUP INC | 2,000,000 | $13.2B | 0.34% | |
| 70 | ARVNARVINAS INC | 280,100 | $12.5B | 0.32% | |
| 71 | CMPXCOMPASS THERAPEUTICS INC | 5,333,188 | $12.2B | 0.31% | |
| 72 | TCE2CELLDEX THERAPEUTICS INC NEW | 421,604 | $11.9B | 0.31% | |
| 73 | COLLCOLLEGIUM PHARMACEUTICAL INC | 725,000 | $11.6B | 0.30% | |
| 74 | AMLXAMYLYX PHARMACEUTICALS INC | 403,737 | $11.4B | 0.29% | |
| 75 | NVV1NOVAVAX INC | 599,300 | $10.9B | 0.28% | |
| 76 | GHGUARDANT HEALTH INC | 200,000 | $10.8B | 0.28% | |
| 77 | AM6AMICUS THERAPEUTICS INC | 1,012,506 | $10.6B | 0.27% | |
| 78 | 290ACHINOOK THERAPEUTICS INC | 507,512 | $10.0B | 0.26% | |
| 79 | LUNGPULMONX CORP | 597,400 | $10.0B | 0.26% | |
| 80 | GOSS 5 06/01/27GOSSAMER BIO INC | 9,573,000 | $9.9B | 0.26% | |
| 81 | —ORION ACQUISITION CORP | 1,000,000 | $9.9B | 0.25% | |
| 82 | —AMRYT PHARMA PLC | 1,325,625 | $9.2B | 0.24% | |
| 83 | —KINNATE BIOPHARMA INC | 746,973 | $8.9B | 0.23% | |
| 84 | HCATHEALTH CATALYST INC | 880,000 | $8.5B | 0.22% | |
| 85 | NVTA1EURINVITAE CORP | 3,386,855 | $8.3B | 0.22% | |
| 86 | NKTXNKARTA INC | 616,277 | $8.1B | 0.21% | |
| 87 | AUPHAURINIA PHARMACEUTICALS INC | 1,066,408 | $8.0B | 0.21% | |
| 88 | DSGNDESIGN THERAPEUTICS INC | 460,391 | $7.7B | 0.20% | |
| 89 | INZYINOZYME PHARMA INC | 2,807,618 | $7.5B | 0.19% | |
| 90 | EDAEDAP TMS S A | 910,000 | $7.5B | 0.19% | |
| 91 | BMEABIOMEA FUSION INC | 730,846 | $7.1B | 0.18% | |
| 92 | —GAMIDA CELL LTD | 4,119,883 | $6.6B | 0.17% | |
| 93 | MREOMEREO BIOPHARMA GROUP PLC | 6,244,897 | $5.4B | 0.14% | |
| 94 | BEAMBEAM THERAPEUTICS INC | 111,430 | $5.3B | 0.14% | |
| 95 | —EQRX INC | 1,000,000 | $5.0B | 0.13% | |
| 96 | —PARATEK PHARMACEUTICALS INC | 1,734,037 | $4.5B | 0.12% | |
| 97 | VIGLVIGIL NEUROSCIENCE INC | 471,958 | $4.3B | 0.11% | |
| 98 | MGNXMACROGENICS INC | 1,206,642 | $4.2B | 0.11% | |
| 99 | XLOXILIO THERAPEUTICS INC | 1,362,878 | $4.0B | 0.10% | |
| 100 | —F-STAR THERAPEUTICS INC | 751,889 | $3.9B | 0.10% |
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