Rock Springs Capital Management

Rock Springs Capital Management as of March 31, 2025

Portfolio Holdings for Rock Springs Capital Management

Rock Springs Capital Management holds 96 positions in its portfolio as reported in the March 2025 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Argenx Se Sponsored Adr (ARGX) 6.0 $104M 176k 591.87
Eli Lilly & Co. (LLY) 5.4 $94M 114k 825.91
Blueprint Medicines (BPMC) 5.1 $89M 1.0M 88.51
Madrigal Pharmaceuticals (MDGL) 3.2 $55M 167k 331.23
UnitedHealth (UNH) 3.0 $53M 101k 523.75
Travere Therapeutics (TVTX) 3.0 $52M 2.9M 17.92
Intuitive Surgical Com New (ISRG) 2.9 $51M 102k 495.27
Ultragenyx Pharmaceutical (RARE) 2.9 $51M 1.4M 36.21
Penumbra (PEN) 2.6 $46M 171k 267.41
Revolution Medicines (RVMD) 2.6 $45M 1.3M 35.36
Rhythm Pharmaceuticals (RYTM) 2.5 $44M 834k 52.97
Mirum Pharmaceuticals (MIRM) 2.5 $43M 952k 45.05
Merus N V (MRUS) 2.4 $41M 981k 42.09
Insmed Com Par $.01 (INSM) 2.3 $39M 516k 76.29
Alnylam Pharmaceuticals (ALNY) 2.2 $39M 143k 270.02
Ascendis Pharma A/s Sponsored Adr (ASND) 1.9 $34M 216k 155.86
Zai Lab Adr (ZLAB) 1.9 $33M 905k 36.14
Xenon Pharmaceuticals (XENE) 1.8 $31M 932k 33.55
Neurocrine Biosciences (NBIX) 1.8 $31M 279k 110.60
Nuvalent Inc-a (NUVL) 1.7 $30M 428k 70.92
Agilon Health (AGL) 1.7 $30M 7.0M 4.33
Phreesia (PHR) 1.7 $29M 1.1M 25.56
Boston Scientific Corporation (BSX) 1.6 $28M 277k 100.88
Akero Therapeutics (AKRO) 1.6 $27M 673k 40.48
Dex (DXCM) 1.6 $27M 398k 68.29
Irhythm Technologies (IRTC) 1.5 $27M 254k 104.68
Evolent Health Cl A (EVH) 1.5 $26M 2.7M 9.47
Scholar Rock Hldg Corp (SRRK) 1.4 $25M 762k 32.15
Kymera Therapeutics (KYMR) 1.2 $22M 794k 27.37
EXACT Sciences Corporation (EXAS) 1.2 $21M 480k 43.29
Acadia Healthcare (ACHC) 1.2 $21M 681k 30.32
Structure Therapeutics Sponsored Ads (GPCR) 1.1 $20M 1.1M 17.31
Summit Therapeutics (SMMT) 1.1 $19M 995k 19.29
Edwards Lifesciences (EW) 1.1 $19M 255k 72.48
Tarsus Pharmaceuticals (TARS) 1.0 $18M 354k 51.37
Tenet Healthcare Corp Com New (THC) 1.0 $18M 130k 134.50
Legend Biotech Corp Sponsored Ads (LEGN) 1.0 $17M 513k 33.93
Immunovant (IMVT) 1.0 $17M 976k 17.09
Brooks Automation (AZTA) 0.9 $17M 475k 34.64
Inspire Med Sys (INSP) 0.9 $16M 99k 159.28
Amicus Therapeutics (FOLD) 0.9 $16M 1.9M 8.16
Warby Parker Cl A Com (WRBY) 0.9 $15M 835k 18.23
Mereo Biopharma Group Spon Ads (MREO) 0.9 $15M 6.7M 2.25
Celldex Therapeutics Com New (CLDX) 0.8 $15M 813k 18.15
Oscar Health Cl A (OSCR) 0.8 $14M 1.1M 13.11
West Pharmaceutical Services (WST) 0.8 $14M 60k 223.88
Vera Therapeutics Cl A (VERA) 0.7 $13M 521k 24.02
Danaher Corporation (DHR) 0.7 $12M 59k 205.00
Newamsterdam Pharma Company Ordinary Shares (NAMS) 0.6 $11M 536k 20.47
Sarepta Therapeutics (SRPT) 0.6 $10M 159k 63.82
Agios Pharmaceuticals (AGIO) 0.6 $10M 342k 29.30
Pharvaris N V (PHVS) 0.6 $9.8M 623k 15.70
Compass Therapeutics (CMPX) 0.5 $9.4M 5.0M 1.90
Enliven Therapeutics (ELVN) 0.5 $9.2M 466k 19.68
Soleno Therapeutics (SLNO) 0.5 $8.9M 124k 71.45
Ardelyx (ARDX) 0.5 $7.9M 1.6M 4.91
Aclaris Therapeutics (ACRS) 0.4 $7.7M 5.0M 1.53
Zenas Biopharma (ZBIO) 0.4 $6.9M 879k 7.90
89bio (ETNB) 0.4 $6.1M 844k 7.27
Prothena Corp SHS (PRTA) 0.3 $6.1M 493k 12.38
Janux Therapeutics (JANX) 0.3 $5.5M 205k 27.00
Dyne Therapeutics (DYN) 0.3 $5.5M 525k 10.46
Gossamer Bio Note 5.000% 6/0 (Principal) 0.3 $5.3M 9.6M 0.55
Mineralys Therapeutics (MLYS) 0.3 $5.1M 321k 15.88
Cullinan Oncology (CGEM) 0.3 $4.9M 645k 7.57
Nevro (NVRO) 0.3 $4.7M 801k 5.84
Bicara Therapeutics (BCAX) 0.3 $4.4M 336k 13.03
Novavax Com New (NVAX) 0.2 $4.2M 650k 6.41
Kestra Med Technologies SHS (KMTS) 0.2 $3.6M 145k 24.92
Gossamer Bio (GOSS) 0.2 $3.6M 3.3M 1.10
Pulmonx Corp (LUNG) 0.2 $3.4M 504k 6.73
Inozyme Pharma (INZY) 0.2 $3.1M 3.4M 0.91
Beam Therapeutics (BEAM) 0.2 $2.9M 150k 19.53
Alphatec Hldgs Com New (ATEC) 0.2 $2.7M 268k 10.14
Sagimet Biosciences Com Ser A (SGMT) 0.1 $2.6M 788k 3.26
Edap Tms S A Sponsored Adr (EDAP) 0.1 $2.5M 1.3M 1.96
Jasper Therapeutics Com New (JSPR) 0.1 $2.3M 545k 4.30
Lenz Therapeutics (LENZ) 0.1 $2.1M 83k 25.71
Regeneron Pharmaceuticals (REGN) 0.1 $1.8M 2.8k 634.23
Apellis Pharmaceuticals (APLS) 0.1 $1.7M 80k 21.87
BioCryst Pharmaceuticals (BCRX) 0.1 $1.7M 222k 7.50
Macrogenics (MGNX) 0.1 $1.5M 1.1M 1.27
Compugen Ord (CGEN) 0.1 $1.4M 990k 1.46
Mersana Therapeutics 0.1 $1.3M 3.8M 0.34
Neurogene (NGNE) 0.1 $1.2M 104k 11.71
Amylyx Pharmaceuticals (AMLX) 0.1 $1.2M 343k 3.54
Sionna Therapeutics (SION) 0.1 $1.0M 99k 10.46
Applied Therapeutics (APLT) 0.1 $1.0M 2.1M 0.49
Perspective Therapeutics Com New (CATX) 0.1 $947k 444k 2.13
Vigil Neuroscience (VIGL) 0.0 $840k 472k 1.78
Pliant Therapeutics (PLRX) 0.0 $797k 590k 1.35
Spruce Biosciences (SPRB) 0.0 $757k 2.6M 0.29
Korro Bio (KRRO) 0.0 $622k 36k 17.41
Adaptimmune Therapeutics Sponds Adr (ADAP) 0.0 $489k 2.5M 0.20
Talphera Com New (TLPH) 0.0 $157k 317k 0.49
Nuvation Bio *w Exp 02/10/202 (NUVB.WS) 0.0 $32k 134k 0.24