13F HOLDINGS REPORT
Rock Springs Capital Management LP
Quarter ended Q4 2023 · Filed November 14, 2023 · Accession 0001172661-23-003961
Total Value
$3.73B
Positions
120
Other Managers
0
Confidential Omitted
No
Holdings (120)
| # | Issuer | Ticker / CUSIP | Shares | Value | % of Filing |
|---|---|---|---|---|---|
| 1 | HUMANA INC | HUM | 436,500 | $212.4M | 5.69% |
| 2 | IMMUNOCORE HLDGS PLC | IMCR | 2,943,710 | $152.8M | 4.09% |
| 3 | AGILON HEALTH INC | AGL | 8,292,500 | $147.3M | 3.95% |
| 4 | NEUROCRINE BIOSCIENCES INC | NBIX | 1,236,000 | $139.1M | 3.72% |
| 5 | BLUEPRINT MEDICINES CORP | 09627Y109 | 2,685,294 | $134.9M | 3.61% |
| 6 | ARGENX SE | ARGX | 259,000 | $127.3M | 3.41% |
| 7 | PENUMBRA INC | PEN | 503,750 | $121.9M | 3.26% |
| 8 | UNITEDHEALTH GROUP INC | UNH | 230,000 | $116.0M | 3.11% |
| 9 | EVOLENT HEALTH INC | EVH | 3,865,000 | $105.2M | 2.82% |
| 10 | INTUITIVE SURGICAL INC | ISRG | 298,500 | $87.2M | 2.34% |
| 11 | KARUNA THERAPEUTICS INC | 48576A100 | 505,433 | $85.5M | 2.29% |
| 12 | IDEXX LABS INC | 45168D104 | 194,500 | $85.0M | 2.28% |
| 13 | SEAGEN INC | SE | 400,200 | $84.9M | 2.27% |
| 14 | WEST PHARMACEUTICAL SVSC INC | 955306105 | 202,000 | $75.8M | 2.03% |
| 15 | AKERO THERAPEUTICS INC | 00973Y108 | 1,419,150 | $71.8M | 1.92% |
| 16 | EXACT SCIENCES CORP | 30063P105 | 1,018,250 | $69.5M | 1.86% |
| 17 | AGIOS PHARMACEUTICALS INC | AGIO | 2,710,061 | $67.1M | 1.80% |
| 18 | ALIGN TECHNOLOGY INC | ALGN | 217,000 | $66.3M | 1.77% |
| 19 | ACADIA HEALTHCARE COMPANY IN | ACHC | 908,000 | $63.8M | 1.71% |
| 20 | BOSTON SCIENTIFIC CORP | BSX | 1,160,000 | $61.2M | 1.64% |
| 21 | INSULET CORP | PODD | 380,000 | $60.6M | 1.62% |
| 22 | MIRUM PHARMACEUTICALS INC | MIRM | 1,820,733 | $57.5M | 1.54% |
| 23 | CEREVEL THERAPEUTICS HLDNG I | 15678U128 | 2,529,116 | $55.2M | 1.48% |
| 24 | DEXCOM INC | DXCM | 584,000 | $54.5M | 1.46% |
| 25 | ULTRAGENYX PHARMACEUTICAL IN | RARE | 1,476,441 | $52.6M | 1.41% |
| 26 | ALNYLAM PHARMACEUTICALS INC | ALNY | 279,500 | $49.5M | 1.33% |
| 27 | MIRATI THERAPEUTICS INC | 60468T105 | 1,131,207 | $49.3M | 1.32% |
| 28 | SAREPTA THERAPEUTICS INC | SRPT | 392,000 | $47.5M | 1.27% |
| 29 | EDWARDS LIFESCIENCES CORP | EW | 647,300 | $44.8M | 1.20% |
| 30 | FRESHPET INC | FRPT | 662,500 | $43.6M | 1.17% |
| 31 | XENON PHARMACEUTICALS INC | XENE | 1,178,002 | $40.2M | 1.08% |
| 32 | ASCENDIS PHARMA A/S | ASND | 425,500 | $39.8M | 1.07% |
| 33 | RHYTHM PHARMACEUTICALS INC | RYTM | 1,597,123 | $36.6M | 0.98% |
| 34 | PHREESIA INC | PHR | 1,776,391 | $33.2M | 0.89% |
| 35 | IRHYTHM TECHNOLOGIES INC | IRTC | 350,750 | $33.1M | 0.89% |
| 36 | PACIRA BIOSCIENCES INC | PCRX | 1,055,500 | $32.4M | 0.87% |
| 37 | ACCOLADE INC | 00437E102 | 2,913,000 | $30.8M | 0.83% |
| 38 | LEGEND BIOTECH CORP | LEGN | 458,265 | $30.8M | 0.82% |
| 39 | ZAI LAB LTD | ZLAB | 1,237,023 | $30.1M | 0.81% |
| 40 | PROTHENA CORP PLC | PRTA | 614,298 | $29.6M | 0.79% |
| 41 | HORIZON THERAPEUTICS PUB L | G46188101 | 255,500 | $29.6M | 0.79% |
| 42 | SHOCKWAVE MED INC | 82489T104 | 147,500 | $29.4M | 0.79% |
| 43 | ABCAM PLC | 000380204 | 1,275,000 | $28.9M | 0.77% |
| 44 | MADRIGAL PHARMACEUTICALS INC | MDGL | 196,369 | $28.7M | 0.77% |
| 45 | AMYLYX PHARMACEUTICALS INC | AMLX | 1,545,016 | $28.3M | 0.76% |
| 46 | ACLARIS THERAPEUTICS INC | ACRS | 3,960,449 | $27.1M | 0.73% |
| 47 | DYNAVAX TECHNOLOGIES CORP | 268158201 | 1,813,758 | $26.8M | 0.72% |
| 48 | SELECT SECTOR SPDR TR | 81369Y209 | 200,000 | $25.7M | 0.69% |
| 49 | LIFESTANCE HEALTH GROUP INC | LFST | 3,670,000 | $25.2M | 0.68% |
| 50 | IMMUNOVANT INC | IMVT | 644,344 | $24.7M | 0.66% |
| 51 | OLINK HLDG AB | OLN | 1,676,500 | $24.7M | 0.66% |
| 52 | AZENTA INC | AZTA | 477,500 | $24.0M | 0.64% |
| 53 | BIOMARIN PHARMACEUTICAL INC | BMRN | 264,500 | $23.4M | 0.63% |
| 54 | NEVRO CORP | 64157F103 | 1,211,600 | $23.3M | 0.62% |
| 55 | IMMATICS N.V | IMTX | 1,875,466 | $21.7M | 0.58% |
| 56 | KYMERA THERAPEUTICS INC | KYMR | 1,504,351 | $20.9M | 0.56% |
| 57 | WARBY PARKER INC | WRBY | 1,575,000 | $20.7M | 0.56% |
| 58 | REVOLUTION MEDICINES INC | RVMDW | 725,152 | $20.1M | 0.54% |
| 59 | MERUS N V | N5749R100 | 838,428 | $19.8M | 0.53% |
| 60 | AMGEN INC | AMGN | 68,000 | $18.3M | 0.49% |
| 61 | BIOCRYST PHARMACEUTICALS INC | BCRX | 2,551,226 | $18.1M | 0.48% |
| 62 | DISC MEDICINE INC | IRON | 363,468 | $17.1M | 0.46% |
| 63 | TRAVERE THERAPEUTICS INC | TVTX | 1,807,742 | $16.2M | 0.43% |
| 64 | INOZYME PHARMA INC | 45790W108 | 3,681,174 | $15.5M | 0.41% |
| 65 | CELLDEX THERAPEUTICS INC NEW | CLDX | 500,101 | $13.8M | 0.37% |
| 66 | AMICUS THERAPEUTICS INC | FOLD | 1,063,806 | $12.9M | 0.35% |
| 67 | COLLEGIUM PHARMACEUTICAL INC | COLL | 562,000 | $12.6M | 0.34% |
| 68 | IMMUNOGEN INC | 45253H101 | 759,365 | $12.1M | 0.32% |
| 69 | ACUMEN PHARMACEUTICALS INC | ABOS | 2,812,579 | $11.7M | 0.31% |
| 70 | MINERALYS THERAPEUTICS INC | MLYS | 1,167,492 | $11.1M | 0.30% |
| 71 | COMPASS THERAPEUTICS INC | CMPX | 5,513,788 | $10.9M | 0.29% |
| 72 | KRYSTAL BIOTECH INC | KRYS | 90,560 | $10.5M | 0.28% |
| 73 | MEREO BIOPHARMA GROUP PLC | MREO | 7,676,481 | $9.9M | 0.27% |
| 74 | EDAP TMS S A | EDAP | 1,360,000 | $9.5M | 0.26% |
| 75 | INSPIRE MED SYS INC | 457730109 | 44,500 | $8.8M | 0.24% |
| 76 | RENEO PHARMACEUTICALS INC | 75974E103 | 1,143,185 | $8.7M | 0.23% |
| 77 | PLIANT THERAPEUTICS INC | PLRX | 491,221 | $8.5M | 0.23% |
| 78 | PULMONX CORP | LUNG | 652,400 | $6.7M | 0.18% |
| 79 | ICOSAVAX INC | 45114M109 | 868,409 | $6.7M | 0.18% |
| 80 | SAGIMET BIOSCIENCES INC | SGMT | 738,355 | $6.5M | 0.17% |
| 81 | AURA BIOSCIENCES INC | AURA | 722,896 | $6.5M | 0.17% |
| 82 | SPRUCE BIOSCIENCES INC | SPRB | 2,728,125 | $6.2M | 0.17% |
| 83 | RELAY THERAPEUTICS INC | RLAY | 673,966 | $5.7M | 0.15% |
| 84 | MACROGENICS INC | MGNX | 1,178,796 | $5.5M | 0.15% |
| 85 | NOVAVAX INC | NVAX | 647,700 | $4.7M | 0.13% |
| 86 | MERSANA THERAPEUTICS INC | 59045L106 | 3,403,133 | $4.3M | 0.12% |
| 87 | CYTOKINETICS INC | CYTK | 134,252 | $4.0M | 0.11% |
| 88 | AURINIA PHARMACEUTICALS INC | AUPH | 479,540 | $3.7M | 0.10% |
| 89 | GOSSAMER BIO INC | GOSS | 9,573,000 | $3.7M | 0.10% |
| 90 | FULCRUM THERAPEUTICS INC | FULC | 727,673 | $3.2M | 0.09% |
| 91 | HEALTH CATALYST INC | HCAT | 307,500 | $3.1M | 0.08% |
| 92 | XILIO THERAPEUTICS INC | XLO | 1,440,759 | $3.0M | 0.08% |
| 93 | GOSSAMER BIO INC | GOSS | 3,266,960 | $2.7M | 0.07% |
| 94 | BEAM THERAPEUTICS INC | BEAM | 111,430 | $2.7M | 0.07% |
| 95 | TRAVERE THERAPEUTICS INC | TVTX | 3,250,000 | $2.7M | 0.07% |
| 96 | VIGIL NEUROSCIENCE INC | 92673K108 | 471,958 | $2.5M | 0.07% |
| 97 | BIOMEA FUSION INC | BMEA | 181,147 | $2.5M | 0.07% |
| 98 | ADAPTIMMUNE THERAPEUTICS PLC | ADTI | 2,787,845 | $2.2M | 0.06% |
| 99 | ESSA PHARMA INC | 29668H708 | 677,005 | $2.1M | 0.06% |
| 100 | APPLIED THERAPEUTICS INC | 03828A101 | 808,809 | $2.0M | 0.05% |
| 101 | AEGLEA BIOTHERAPEUTICS INC | SYRE | 136,556 | $1.7M | 0.04% |
| 102 | NEUROCRINE BIOSCIENCES INC | NBIX | 1,000,000 | $1.5M | 0.04% |
| 103 | LEAP THERAPEUTICS INC | CYPH | 1,074,517 | $1.5M | 0.04% |
| 104 | ACELYRIN INC | 00445A100 | 141,876 | $1.4M | 0.04% |
| 105 | FATE THERAPEUTICS INC | FATE | 612,215 | $1.3M | 0.03% |
| 106 | COMPUGEN LTD | CGEN | 1,289,990 | $1.2M | 0.03% |
| 107 | THESEUS PHARMACEUTICALS INC | 88369M101 | 437,329 | $1.2M | 0.03% |
| 108 | DESIGN THERAPEUTICS INC | DSGN | 460,391 | $1.1M | 0.03% |
| 109 | VINCERX PHARMA INC | VNCE | 891,719 | $900,636 | 0.02% |
| 110 | KINNATE BIOPHARMA INC | 49705R105 | 405,811 | $568,135 | 0.02% |
| 111 | NEVRO CORP | 64157FAC7 | 500,000 | $472,128 | 0.01% |
| 112 | NKARTA INC | NKTX | 331,571 | $460,884 | 0.01% |
| 113 | CERVOMED INC | CRVO | 80,033 | $369,752 | 0.01% |
| 114 | INVITAE CORP | 46185L103 | 585,659 | $354,441 | 0.01% |
| 115 | ACELRX PHARMACEUTICALS INC | TLPH | 316,460 | $183,547 | 0.00% |
| 116 | TEMPEST THERAPEUTICS INC | TPST | 536,214 | $163,384 | 0.00% |
| 117 | ATRECA INC | 04965G109 | 362,530 | $94,620 | 0.00% |
| 118 | SPERO THERAPEUTICS INC | SPRO | 57,373 | $69,421 | 0.00% |
| 119 | GAMIDA CELL LTD | M47364100 | 52,015 | $53,575 | 0.00% |
| 120 | NUVATION BIO INC | NUVB | 134,028 | $13,403 | 0.00% |