Rock Springs Capital Management LP Q2 2022 Filing
Filed August 15, 2022
Portfolio Value
$3.4T
Holdings
131
Report Date
Q2 2022
Filing Type
13F-HR
All Holdings (131 positions)
| # | Stock | Shares | Value | % Portfolio | Type |
|---|---|---|---|---|---|
| 1 | HUMHUMANA INC | 426,358 | $199.6B | 5.81% | |
| 2 | AGLAGILON HEALTH INC | 7,681,000 | $167.7B | 4.88% | |
| 3 | UNHUNITEDHEALTH GROUP INC | 268,500 | $137.9B | 4.01% | |
| 4 | ARGXARGENX SE | 350,000 | $132.6B | 3.86% | |
| 5 | NBIXNEUROCRINE BIOSCIENCES INC | 1,122,500 | $109.4B | 3.18% | |
| 6 | PODDINSULET CORP | 502,000 | $109.4B | 3.18% | |
| 7 | IMCRIMMUNOCORE HLDGS PLC | 2,671,652 | $99.7B | 2.90% | |
| 8 | EVHEVOLENT HEALTH INC | 2,738,000 | $84.1B | 2.45% | |
| 9 | AFWALIGN TECHNOLOGY INC | 354,500 | $83.9B | 2.44% | |
| 10 | IDXXIDEXX LABS INC | 223,750 | $78.5B | 2.28% | |
| 11 | RAREULTRAGENYX PHARMACEUTICAL IN | 1,093,030 | $65.2B | 1.90% | |
| 12 | AGIOAGIOS PHARMACEUTICALS INC | 2,928,458 | $64.9B | 1.89% | |
| 13 | —SIERRA ONCOLOGY INC | 1,174,786 | $64.6B | 1.88% | |
| 14 | ISRGINTUITIVE SURGICAL INC | 298,500 | $59.9B | 1.74% | |
| 15 | HZNPHORIZON THERAPEUTICS PUB L | 746,000 | $59.5B | 1.73% | |
| 16 | PCRXPACIRA BIOSCIENCES INC | 1,017,500 | $59.3B | 1.73% | |
| 17 | EWEDWARDS LIFESCIENCES CORP | 602,000 | $57.2B | 1.67% | |
| 18 | MRTXEURMIRATI THERAPEUTICS INC | 844,977 | $56.7B | 1.65% | |
| 19 | KRTXKARUNA THERAPEUTICS INC | 441,893 | $55.9B | 1.63% | |
| 20 | ACRSACLARIS THERAPEUTICS INC | 3,927,149 | $54.8B | 1.60% | |
| 21 | ACHCACADIA HEALTHCARE COMPANY IN | 753,500 | $51.0B | 1.48% | |
| 22 | PENPENUMBRA INC | 401,500 | $50.0B | 1.46% | |
| 23 | 2L9BLUEPRINT MEDICINES CORP | 979,174 | $49.5B | 1.44% | |
| 24 | ALNYALNYLAM PHARMACEUTICALS INC | 332,500 | $48.5B | 1.41% | |
| 25 | SGENUSDSEAGEN INC | 272,000 | $48.1B | 1.40% | |
| 26 | CERE1EURCEREVEL THERAPEUTICS HLDNG I | 1,767,141 | $46.7B | 1.36% | |
| 27 | SWAVUSDSHOCKWAVE MED INC | 240,500 | $46.0B | 1.34% | |
| 28 | BAXBAXTER INTL INC | 701,600 | $45.1B | 1.31% | |
| 29 | ZLABZAI LAB LTD | 1,215,900 | $42.2B | 1.23% | |
| 30 | ASNDASCENDIS PHARMA A/S | 425,500 | $39.6B | 1.15% | |
| 31 | DC4DEXCOM INC | 472,800 | $35.2B | 1.03% | |
| 32 | CVETUSDCOVETRUS INC | 1,678,800 | $34.8B | 1.01% | |
| 33 | XENEXENON PHARMACEUTICALS INC | 1,123,604 | $34.2B | 0.99% | |
| 34 | NVROEURNEVRO CORP | 773,300 | $33.9B | 0.99% | |
| 35 | WSTWEST PHARMACEUTICAL SVSC INC | 111,000 | $33.6B | 0.98% | |
| 36 | MIRMMIRUM PHARMACEUTICALS INC | 1,717,733 | $33.4B | 0.97% | |
| 37 | FRPTFRESHPET INC | 637,600 | $33.1B | 0.96% | |
| 38 | PHRPHREESIA INC | 1,298,200 | $32.5B | 0.94% | |
| 39 | SRPTSAREPTA THERAPEUTICS INC | 428,000 | $32.1B | 0.93% | |
| 40 | IRTCIRHYTHM TECHNOLOGIES INC | 270,000 | $29.2B | 0.85% | |
| 41 | XLVSELECT SECTOR SPDR TR | 200,000 | $25.6B | 0.75% | |
| 42 | NVV1NOVAVAX INC | 475,100 | $24.4B | 0.71% | |
| 43 | —ABCAM PLC | 1,620,500 | $23.4B | 0.68% | |
| 44 | TVTXTRAVERE THERAPEUTICS INC | 951,650 | $23.1B | 0.67% | |
| 45 | MDGLMADRIGAL PHARMACEUTICALS INC | 317,485 | $22.7B | 0.66% | |
| 46 | EXASEXACT SCIENCES CORP | 572,700 | $22.6B | 0.66% | |
| 47 | BMRNBIOMARIN PHARMACEUTICAL INC | 264,500 | $21.9B | 0.64% | |
| 48 | CNMDCONMED CORP | 223,000 | $21.4B | 0.62% | |
| 49 | DVAXDYNAVAX TECHNOLOGIES CORP | 1,681,458 | $21.2B | 0.62% | |
| 50 | —TURNING POINT THERAPEUTICS I | 271,787 | $20.5B | 0.60% | |
| 51 | LEGNLEGEND BIOTECH CORP | 355,567 | $19.6B | 0.57% | |
| 52 | —CINCOR PHARMA INC | 1,021,159 | $19.2B | 0.56% | |
| 53 | —MERSANA THERAPEUTICS INC | 4,075,958 | $18.8B | 0.55% | |
| 54 | AMLXAMYLYX PHARMACEUTICALS INC | 974,107 | $18.8B | 0.55% | |
| 55 | —OLINK HLDG AB | 1,231,800 | $18.7B | 0.54% | |
| 56 | PRTAPROTHENA CORP PLC | 678,462 | $18.4B | 0.54% | |
| 57 | —PROMETHEUS BIOSCIENCES INC | 644,507 | $18.2B | 0.53% | |
| 58 | ACCDEURACCOLADE INC | 2,200,000 | $16.3B | 0.47% | |
| 59 | CYTKCYTOKINETICS INC | 400,000 | $15.7B | 0.46% | |
| 60 | BCRXBIOCRYST PHARMACEUTICALS INC | 1,461,091 | $15.5B | 0.45% | |
| 61 | KYMRKYMERA THERAPEUTICS INC | 775,879 | $15.3B | 0.44% | |
| 62 | WRBYWARBY PARKER INC | 1,273,500 | $14.3B | 0.42% | |
| 63 | AURAAURA BIOSCIENCES INC | 1,008,814 | $14.3B | 0.42% | |
| 64 | CMPXCOMPASS THERAPEUTICS INC | 5,328,088 | $14.1B | 0.41% | |
| 65 | HCATHEALTH CATALYST INC | 945,400 | $13.7B | 0.40% | |
| 66 | BMEABIOMEA FUSION INC | 1,085,740 | $13.0B | 0.38% | |
| 67 | COLLCOLLEGIUM PHARMACEUTICAL INC | 725,000 | $12.8B | 0.37% | |
| 68 | INZYINOZYME PHARMA INC | 2,640,056 | $12.6B | 0.37% | |
| 69 | NVCRNOVOCURE LTD | 175,000 | $12.2B | 0.35% | |
| 70 | ARVNARVINAS INC | 280,100 | $11.8B | 0.34% | |
| 71 | AZTAAZENTA INC | 162,000 | $11.7B | 0.34% | |
| 72 | ANABANAPTYSBIO INC | 572,300 | $11.6B | 0.34% | |
| 73 | LFSTLIFESTANCE HEALTH GROUP INC | 2,000,000 | $11.1B | 0.32% | |
| 74 | —EPIZYME INC | 7,485,543 | $11.0B | 0.32% | |
| 75 | AM6AMICUS THERAPEUTICS INC | 1,012,506 | $10.9B | 0.32% | |
| 76 | RLAYRELAY THERAPEUTICS INC | 618,267 | $10.4B | 0.30% | |
| 77 | LUNGPULMONX CORP | 702,400 | $10.3B | 0.30% | |
| 78 | IMTXIMMATICS N.V | 1,127,970 | $9.8B | 0.29% | |
| 79 | —ORION ACQUISITION CORP | 1,000,000 | $9.8B | 0.29% | |
| 80 | —AMRYT PHARMA PLC | 1,312,625 | $9.2B | 0.27% | |
| 81 | TCE2CELLDEX THERAPEUTICS INC NEW | 335,477 | $9.0B | 0.26% | |
| 82 | 290ACHINOOK THERAPEUTICS INC | 507,512 | $8.9B | 0.26% | |
| 83 | NVTA1EURINVITAE CORP | 3,494,721 | $8.5B | 0.25% | |
| 84 | AUPHAURINIA PHARMACEUTICALS INC | 815,126 | $8.2B | 0.24% | |
| 85 | GHGUARDANT HEALTH INC | 200,000 | $8.1B | 0.23% | |
| 86 | —KINNATE BIOPHARMA INC | 618,384 | $7.8B | 0.23% | |
| 87 | VERVVERVE THERAPEUTICS INC | 504,037 | $7.7B | 0.22% | |
| 88 | NKTXNKARTA INC | 616,277 | $7.6B | 0.22% | |
| 89 | GOSS 5 06/01/27GOSSAMER BIO INC | 9,573,000 | $7.2B | 0.21% | |
| 90 | MREOMEREO BIOPHARMA GROUP PLC | 6,230,275 | $7.0B | 0.20% | |
| 91 | DSGNDESIGN THERAPEUTICS INC | 460,391 | $6.4B | 0.19% | |
| 92 | AKROAKERO THERAPEUTICS INC | 679,514 | $6.4B | 0.19% | |
| 93 | EDAEDAP TMS S A | 910,000 | $6.2B | 0.18% | |
| 94 | RYTMRHYTHM PHARMACEUTICALS INC | 1,403,298 | $5.8B | 0.17% | |
| 95 | —F-STAR THERAPEUTICS INC | 751,889 | $4.7B | 0.14% | |
| 96 | —EQRX INC | 1,000,000 | $4.7B | 0.14% | |
| 97 | —ICOSAVAX INC | 761,557 | $4.4B | 0.13% | |
| 98 | BEAMBEAM THERAPEUTICS INC | 111,430 | $4.3B | 0.13% | |
| 99 | LPTXEURLEAP THERAPEUTICS INC | 3,652,947 | $4.2B | 0.12% | |
| 100 | ADAPYADAPTIMMUNE THERAPEUTICS PLC | 2,357,544 | $4.0B | 0.12% |
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