Q4 2024 · 13F-HR
Rock Springs Capital Management LPholdings as filed
Filed 2025-02-14 · accession 0001172661-25-000867
$2.63B
Reported value
107
Positions
2024-12-31
Period end
Holdings as filed
| CUSIP | Ticker | Issuer | Value | % port. | Shares | Class | Voting |
|---|---|---|---|---|---|---|---|
| 04016X101 | ARGX | ARGENX SE | $141.2M | 5.38% | 229,600 | Common | SOLE |
| 46120E602 | ISRG | INTUITIVE SURGICAL INC | $112.7M | 4.29% | 216,000 | Common | SOLE |
| 532457108 | LLY | ELI LILLY & CO | $111.6M | 4.25% | 144,500 | Common | SOLE |
| 64125C109 | NBIX | NEUROCRINE BIOSCIENCES INC | $98.3M | 3.74% | 720,500 | Common | SOLE |
| 09627Y109 | 2655787D | BLUEPRINT MEDICINES CORP | $95.7M | 3.64% | 1,096,899 | Common | SOLE |
| 91324P102 | UNH | UNITEDHEALTH GROUP INC | $89.0M | 3.39% | 176,000 | Common | SOLE |
| 89422G107 | TVTX | TRAVERE THERAPEUTICS INC | $86.6M | 3.30% | 4,973,649 | Common | SOLE |
| 558868105 | MDGL | MADRIGAL PHARMACEUTICALS INC | $81.8M | 3.12% | 265,212 | Common | SOLE |
| 90400D108 | RARE | ULTRAGENYX PHARMACEUTICAL IN | $73.2M | 2.79% | 1,739,813 | Common | SOLE |
| 76243J105 | RYTM | RHYTHM PHARMACEUTICALS INC | $65.1M | 2.48% | 1,162,718 | Common | SOLE |
| 604749101 | MIRM | MIRUM PHARMACEUTICALS INC | $60.8M | 2.32% | 1,471,564 | Common | SOLE |
| 02043Q107 | ALNY | ALNYLAM PHARMACEUTICALS INC | $60.3M | 2.30% | 256,200 | Common | SOLE |
| 70975L107 | PEN | PENUMBRA INC | $57.0M | 2.17% | 240,000 | Common | SOLE |
| 955306105 | WST | WEST PHARMACEUTICAL SVSC INC | $55.3M | 2.10% | 168,750 | Common | SOLE |
| 76155X100 | RVMD | REVOLUTION MEDICINES INC | $53.1M | 2.02% | 1,213,257 | Common | SOLE |
| 71944F106 | PHR | PHREESIA INC | $51.3M | 1.95% | 2,040,000 | Common | SOLE |
| 98420N105 | XENE | XENON PHARMACEUTICALS INC | $49.1M | 1.87% | 1,251,859 | Common | SOLE |
| 358039105 | FRPT | FRESHPET INC | $48.5M | 1.85% | 327,500 | Common | SOLE |
| 04351P101 | ASNDUSD | ASCENDIS PHARMA A/S | $42.0M | 1.60% | 305,000 | Common | SOLE |
| 501575104 | KYMR | KYMERA THERAPEUTICS INC | $41.6M | 1.58% | 1,034,137 | Common | SOLE |
| 101137107 | BSX | BOSTON SCIENTIFIC CORP | $41.1M | 1.56% | 460,000 | Common | SOLE |
| 28176E108 | EW | EDWARDS LIFESCIENCES CORP | $40.3M | 1.54% | 545,000 | Common | SOLE |
| 457669307 | INSM | INSMED INC | $38.0M | 1.45% | 550,000 | Common | SOLE |
| N5749R100 | 2GH | MERUS N V | $37.5M | 1.43% | 892,549 | Common | SOLE |
| 803607100 | SRPT | SAREPTA THERAPEUTICS INC | $37.4M | 1.42% | 307,500 | Common | SOLE |
| 450056106 | IRTC | IRHYTHM TECHNOLOGIES INC | $35.8M | 1.36% | 397,500 | Common | SOLE |
| 98887Q104 | ZLAB | ZAI LAB LTD | $34.2M | 1.30% | 1,305,337 | Common | SOLE |
| 670703107 | NUVL | NUVALENT INC | $33.7M | 1.28% | 429,994 | Common | SOLE |
| 589492107 | MREO | MEREO BIOPHARMA GROUP PLC | $33.6M | 1.28% | 9,599,170 | Common | SOLE |
| 80706P103 | SRRK | SCHOLAR ROCK HLDG CORP | $31.0M | 1.18% | 716,782 | Common | SOLE |
| 15117B202 | CLDX | CELLDEX THERAPEUTICS INC NEW | $30.9M | 1.18% | 1,222,182 | Common | SOLE |
| 45784P101 | PODD | INSULET CORP | $29.8M | 1.14% | 114,250 | Common | SOLE |
| 86366E106 | GPCR | STRUCTURE THERAPEUTICS INC | $29.3M | 1.12% | 1,080,963 | Common | SOLE |
| 252131107 | DXCM | DEXCOM INC | $27.5M | 1.05% | 353,000 | Common | SOLE |
| 00973Y108 | AKRO | AKERO THERAPEUTICS INC | $26.3M | 1.00% | 946,499 | Common | SOLE |
| 30063P105 | EXK | EXACT SCIENCES CORP | $25.3M | 0.96% | 450,000 | Common | SOLE |
| 03152W109 | AM6 | AMICUS THERAPEUTICS INC | $24.5M | 0.93% | 2,599,425 | Common | SOLE |
| 457730109 | INSP | INSPIRE MED SYS INC | $24.1M | 0.92% | 130,000 | Common | SOLE |
| 114340102 | AZTA | AZENTA INC | $23.8M | 0.90% | 475,000 | Common | SOLE |
| 30050B101 | EVH | EVOLENT HEALTH INC | $23.2M | 0.88% | 2,060,000 | Common | SOLE |
| 00404A109 | ACHC | ACADIA HEALTHCARE COMPANY IN | $23.1M | 0.88% | 583,500 | Common | SOLE |
| 45258J102 | IMVT | IMMUNOVANT INC | $22.5M | 0.86% | 909,103 | Common | SOLE |
| 93403J106 | WRBY | WARBY PARKER INC | $22.3M | 0.85% | 920,000 | Common | SOLE |
| 92337R101 | VERA | VERA THERAPEUTICS INC | $20.6M | 0.79% | 487,863 | Common | SOLE |
| 09058V103 | BCRX | BIOCRYST PHARMACEUTICALS INC | $20.1M | 0.77% | 2,677,996 | Common | SOLE |
| N62509109 | NAMS | NEWAMSTERDAM PHARMA COMPANY | $19.7M | 0.75% | 767,522 | Common | SOLE |
| 86627T108 | SMMT | SUMMIT THERAPEUTICS INC | $18.8M | 0.72% | 1,054,000 | Common | SOLE |
| 53228F101 | LFST | LIFESTANCE HEALTH GROUP INC | $18.8M | 0.72% | 2,550,000 | Common | SOLE |
| 52490G102 | LEGN | LEGEND BIOTECH CORP | $16.7M | 0.63% | 512,132 | Common | SOLE |
| 88033G407 | THC | TENET HEALTHCARE CORP | $16.3M | 0.62% | 129,200 | Common | SOLE |
| 00847X104 | AGIO | AGIOS PHARMACEUTICALS INC | $15.5M | 0.59% | 471,086 | Common | SOLE |
| 00461U105 | ACRS | ACLARIS THERAPEUTICS INC | $15.4M | 0.59% | 6,204,309 | Common | SOLE |
| 22663K107 | CRNX | CRINETICS PHARMACEUTICALS IN | $15.0M | 0.57% | 294,100 | Common | SOLE |
| N69605108 | PHVS | PHARVARIS N V | $14.9M | 0.57% | 775,131 | Common | SOLE |
| 00857U107 | — | AGILON HEALTH INC | $14.2M | 0.54% | 7,463,300 | Common | SOLE |
| 687793109 | OSCR | OSCAR HEALTH INC | $14.1M | 0.54% | 1,050,000 | Common | SOLE |
| 85205L107 | SWTXUSD | SPRINGWORKS THERAPEUTICS INC | $11.9M | 0.45% | 328,911 | Common | SOLE |
| 26818M108 | DYN | DYNE THERAPEUTICS INC | $11.2M | 0.43% | 474,528 | Common | SOLE |
| 47103J105 | JANX | JANUX THERAPEUTICS INC | $10.9M | 0.42% | 204,466 | Common | SOLE |
| 45790W108 | — | INOZYME PHARMA INC | $10.7M | 0.41% | 3,861,983 | Common | SOLE |
| 640979100 | NMRA | NEUMORA THERAPEUTICS INC. | $10.1M | 0.39% | 955,106 | Common | SOLE |
| 471871202 | JSPR | JASPER THERAPEUTICS INC | $9.9M | 0.38% | 463,088 | Common | SOLE |
| 29337E102 | ELVN | ENLIVEN THERAPEUTICS INC | $9.6M | 0.37% | 428,571 | Common | SOLE |
| 98401F105 | XNCR | XENCOR INC | $9.2M | 0.35% | 401,013 | Common | SOLE |
| 230031106 | CGEM | CULLINAN THERAPEUTICS INC | $9.0M | 0.34% | 742,114 | Common | SOLE |
| G72800108 | PRTA | PROTHENA CORP PLC | $8.9M | 0.34% | 644,601 | Common | SOLE |
| 20454B104 | CMPX | COMPASS THERAPEUTICS INC | $8.4M | 0.32% | 5,779,575 | Common | SOLE |
| 055477103 | BCAX | BICARA THERAPEUTICS INC | $7.8M | 0.30% | 445,975 | Common | SOLE |
| 039697107 | ARDX | ARDELYX INC | $7.4M | 0.28% | 1,463,629 | Common | SOLE |
| 98937L105 | ZBIO | ZENAS BIOPHARMA INC | $7.2M | 0.27% | 878,667 | Common | SOLE |
| 07373V105 | BEAM | BEAM THERAPEUTICS INC | $6.3M | 0.24% | 252,223 | Common | SOLE |
| 87650L103 | TARS | TARSUS PHARMACEUTICALS INC | $6.1M | 0.23% | 110,889 | Common | SOLE |
| 64157F103 | NVROEUR | NEVRO CORP | $6.1M | 0.23% | 1,648,100 | Common | SOLE |
| 834203309 | SLNO | SOLENO THERAPEUTICS INC | $5.6M | 0.21% | 124,095 | Common | SOLE |
| 729139105 | PLRX | PLIANT THERAPEUTICS INC | $5.3M | 0.20% | 404,796 | Common | SOLE |
| 745848101 | LUNG | PULMONX CORP | $5.2M | 0.20% | 772,151 | Common | SOLE |
| 670002401 | NVAX | NOVAVAX INC | $5.2M | 0.20% | 650,000 | Common | SOLE |
| 38341PAA0 | GOSS 5 06/01/27 | GOSSAMER BIO INC | $5.1M | 0.19% | 9,573,000 | Common | SOLE |
| 59045L106 | — | MERSANA THERAPEUTICS INC | $4.9M | 0.19% | 3,431,684 | Common | SOLE |
| G1110E107 | BHVN | BIOHAVEN LTD | $4.9M | 0.18% | 129,858 | Common | SOLE |
| 282559103 | ETNBGBP | 89BIO INC | $4.3M | 0.16% | 552,741 | Common | SOLE |
| 52187K200 | CYPH | LEAP THERAPEUTICS INC | $3.6M | 0.14% | 1,266,546 | Common | SOLE |
| 786700104 | SGMT | SAGIMET BIOSCIENCES INC | $3.5M | 0.13% | 787,808 | Common | SOLE |
| 268311107 | EDAP | EDAP TMS S A | $3.5M | 0.13% | 1,591,800 | Common | SOLE |
| 556099109 | MGNX | MACROGENICS INC | $3.4M | 0.13% | 1,053,647 | Common | SOLE |
| 00509G209 | ABOS | ACUMEN PHARMACEUTICALS INC | $3.2M | 0.12% | 1,838,916 | Common | SOLE |
| 38341P102 | GOSS | GOSSAMER BIO INC | $3.0M | 0.11% | 3,266,960 | Common | SOLE |
| 98422T100 | — | XILIO THERAPEUTICS INC | $2.9M | 0.11% | 3,003,259 | Common | SOLE |
| 03753U106 | APLSUSD | APELLIS PHARMACEUTICALS INC | $2.6M | 0.10% | 80,000 | Common | SOLE |
| 05280R100 | AUTL | AUTOLUS THERAPEUTICS PLC | $2.4M | 0.09% | 1,032,988 | Common | SOLE |
| 64135M105 | NGNE | NEUROGENE INC | $2.2M | 0.08% | 95,407 | Common | SOLE |
| 02081G201 | ATEC | ALPHATEC HLDGS INC | $1.8M | 0.07% | 200,000 | Common | SOLE |
| 03828A101 | APLT | APPLIED THERAPEUTICS INC | $1.6M | 0.06% | 1,917,191 | Common | SOLE |
| M25722105 | CGEN | COMPUGEN LTD | $1.5M | 0.06% | 989,990 | Common | SOLE |
| 46489V302 | CATX | PERSPECTIVE THERAPEUTICS INC | $1.4M | 0.05% | 444,383 | Common | SOLE |
| 500946108 | KRRO | KORRO BIO INC | $1.4M | 0.05% | 35,719 | Common | SOLE |
| 00653A107 | ADAPY | ADAPTIMMUNE THERAPEUTICS PLC | $1.3M | 0.05% | 2,483,468 | Common | SOLE |
| 01671P100 | ALLKGUSD | ALLAKOS INC | $1.3M | 0.05% | 1,100,409 | Common | SOLE |
| 85209E109 | — | SPRUCE BIOSCIENCES INC | $1.1M | 0.04% | 2,609,125 | Common | SOLE |
| 52635N103 | LENZ | LENZ THERAPEUTICS INC | $846,035 | 0.03% | 29,305 | Common | SOLE |
| 92673K108 | VIGL | VIGIL NEUROSCIENCE INC | $802,329 | 0.03% | 471,958 | Common | SOLE |
| 09077A106 | BMEA | BIOMEA FUSION INC | $702,850 | 0.03% | 181,147 | Common | SOLE |
| 501976104 | KYTX | KYVERNA THERAPEUTICS INC | $669,322 | 0.03% | 178,963 | Common | SOLE |
| 64157FAC7 | — | NEVRO CORP | $489,102 | 0.02% | 500,000 | Common | SOLE |
| 92731L106 | — | VINCERX PHARMA INC | $234,344 | 0.01% | 891,719 | Common | SOLE |
| 00444T209 | TLPH | TALPHERA INC | $165,857 | 0.01% | 316,460 | Common | SOLE |
| 67080N119 | NUVB/WS | NUVATION BIO INC | $30,826 | 0.00% | 134,028 | Common | SOLE |
Source: SEC EDGAR · raw 13F holdings as filed. The Class column shows the option type when reported (Put/Call) or Common when the issuer's equity is held directly. 13F discloses long positions only.