Rock Springs Capital Management

Rock Springs Capital Management as of Sept. 30, 2023

Portfolio Holdings for Rock Springs Capital Management

Rock Springs Capital Management holds 120 positions in its portfolio as reported in the September 2023 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Humana (HUM) 5.7 $212M 437k 486.52
Immunocore Hldgs Ads (IMCR) 4.1 $153M 2.9M 51.90
Agilon Health (AGL) 3.9 $147M 8.3M 17.76
Neurocrine Biosciences (NBIX) 3.7 $139M 1.2M 112.50
Blueprint Medicines (BPMC) 3.6 $135M 2.7M 50.22
Argenx Se Sponsored Adr (ARGX) 3.4 $127M 259k 491.63
Penumbra (PEN) 3.3 $122M 504k 241.91
UnitedHealth (UNH) 3.1 $116M 230k 504.19
Evolent Health Cl A (EVH) 2.8 $105M 3.9M 27.23
Intuitive Surgical Com New (ISRG) 2.3 $87M 299k 292.29
Karuna Therapeutics Ord 2.3 $86M 505k 169.09
IDEXX Laboratories (IDXX) 2.3 $85M 195k 437.27
Seagen 2.3 $85M 400k 212.15
West Pharmaceutical Services (WST) 2.0 $76M 202k 375.21
Akero Therapeutics (AKRO) 1.9 $72M 1.4M 50.58
EXACT Sciences Corporation (EXAS) 1.9 $70M 1.0M 68.22
Agios Pharmaceuticals (AGIO) 1.8 $67M 2.7M 24.75
Align Technology (ALGN) 1.8 $66M 217k 305.32
Acadia Healthcare (ACHC) 1.7 $64M 908k 70.31
Boston Scientific Corporation (BSX) 1.6 $61M 1.2M 52.80
Insulet Corporation (PODD) 1.6 $61M 380k 159.49
Mirum Pharmaceuticals (MIRM) 1.5 $58M 1.8M 31.60
Cerevel Therapeutics Hldng I (CERE) 1.5 $55M 2.5M 21.83
Dex (DXCM) 1.5 $55M 584k 93.30
Ultragenyx Pharmaceutical (RARE) 1.4 $53M 1.5M 35.65
Alnylam Pharmaceuticals (ALNY) 1.3 $50M 280k 177.10
Mirati Therapeutics 1.3 $49M 1.1M 43.56
Sarepta Therapeutics (SRPT) 1.3 $48M 392k 121.22
Edwards Lifesciences (EW) 1.2 $45M 647k 69.28
Freshpet (FRPT) 1.2 $44M 663k 65.88
Xenon Pharmaceuticals (XENE) 1.1 $40M 1.2M 34.16
Ascendis Pharma A/s Sponsored Adr (ASND) 1.1 $40M 426k 93.64
Rhythm Pharmaceuticals (RYTM) 1.0 $37M 1.6M 22.93
Phreesia (PHR) 0.9 $33M 1.8M 18.68
Irhythm Technologies (IRTC) 0.9 $33M 351k 94.26
Pacira Pharmaceuticals (PCRX) 0.9 $32M 1.1M 30.68
Accolade (ACCD) 0.8 $31M 2.9M 10.58
Legend Biotech Corp Sponsored Ads (LEGN) 0.8 $31M 458k 67.17
Zai Lab Adr (ZLAB) 0.8 $30M 1.2M 24.31
Prothena Corp SHS (PRTA) 0.8 $30M 614k 48.25
Horizon Therapeutics Pub L SHS 0.8 $30M 256k 115.69
Shockwave Med 0.8 $29M 148k 199.10
Abcam Ads 0.8 $29M 1.3M 22.63
Madrigal Pharmaceuticals (MDGL) 0.8 $29M 196k 146.04
Amylyx Pharmaceuticals (AMLX) 0.8 $28M 1.5M 18.31
Aclaris Therapeutics (ACRS) 0.7 $27M 4.0M 6.85
Dynavax Technologies Corp Com New (DVAX) 0.7 $27M 1.8M 14.77
Select Sector Spdr Tr Sbi Healthcare (XLV) 0.7 $26M 200k 128.74
Lifestance Health Group (LFST) 0.7 $25M 3.7M 6.87
Immunovant (IMVT) 0.7 $25M 644k 38.39
Olink Hldg Ab Sponsored Ads (OLK) 0.7 $25M 1.7M 14.75
Brooks Automation (AZTA) 0.6 $24M 478k 50.19
BioMarin Pharmaceutical (BMRN) 0.6 $23M 265k 88.48
Nevro (NVRO) 0.6 $23M 1.2M 19.22
Immatics SHS (IMTX) 0.6 $22M 1.9M 11.58
Kymera Therapeutics (KYMR) 0.6 $21M 1.5M 13.90
Warby Parker Cl A Com (WRBY) 0.6 $21M 1.6M 13.16
Revolution Medicines (RVMD) 0.5 $20M 725k 27.68
Merus N V (MRUS) 0.5 $20M 838k 23.58
Amgen (AMGN) 0.5 $18M 68k 268.76
BioCryst Pharmaceuticals (BCRX) 0.5 $18M 2.6M 7.08
Disc Medicine (IRON) 0.5 $17M 364k 46.98
Travere Therapeutics (TVTX) 0.4 $16M 1.8M 8.94
Inozyme Pharma (INZY) 0.4 $16M 3.7M 4.20
Celldex Therapeutics Com New (CLDX) 0.4 $14M 500k 27.52
Amicus Therapeutics (FOLD) 0.3 $13M 1.1M 12.16
Collegium Pharmaceutical Inc Common Stock Usd (COLL) 0.3 $13M 562k 22.35
ImmunoGen 0.3 $12M 759k 15.87
Acumen Pharmaceuticals (ABOS) 0.3 $12M 2.8M 4.15
Mineralys Therapeutics (MLYS) 0.3 $11M 1.2M 9.51
Compass Therapeutics (CMPX) 0.3 $11M 5.5M 1.97
Krystal Biotech (KRYS) 0.3 $11M 91k 116.00
Mereo Biopharma Group Spon Ads (MREO) 0.3 $9.9M 7.7M 1.29
Edap Tms S A Sponsored Adr (EDAP) 0.3 $9.5M 1.4M 7.02
Inspire Med Sys (INSP) 0.2 $8.8M 45k 198.44
Reneo Pharmaceuticals (RPHM) 0.2 $8.7M 1.1M 7.62
Pliant Therapeutics (PLRX) 0.2 $8.5M 491k 17.34
Pulmonx Corp (LUNG) 0.2 $6.7M 652k 10.33
Icosavax 0.2 $6.7M 868k 7.75
Sagimet Biosciences Com Ser A (SGMT) 0.2 $6.5M 738k 8.80
Aura Biosciences (AURA) 0.2 $6.5M 723k 8.97
Spruce Biosciences (SPRB) 0.2 $6.2M 2.7M 2.26
Relay Therapeutics (RLAY) 0.2 $5.7M 674k 8.41
Macrogenics (MGNX) 0.1 $5.5M 1.2M 4.66
Novavax Com New (NVAX) 0.1 $4.7M 648k 7.24
Mersana Therapeutics (MRSN) 0.1 $4.3M 3.4M 1.27
Cytokinetics Com New (CYTK) 0.1 $4.0M 134k 29.46
Aurinia Pharmaceuticals (AUPH) 0.1 $3.7M 480k 7.77
Gossamer Bio Note 5.000% 6/0 (Principal) 0.1 $3.7M 9.6M 0.39
Fulcrum Therapeutics (FULC) 0.1 $3.2M 728k 4.44
Health Catalyst (HCAT) 0.1 $3.1M 308k 10.12
Xilio Therapeutics (XLO) 0.1 $3.0M 1.4M 2.11
Gossamer Bio (GOSS) 0.1 $2.7M 3.3M 0.83
Beam Therapeutics (BEAM) 0.1 $2.7M 111k 24.05
Travere Therapeutics Note 2.500% 9/1 (Principal) 0.1 $2.7M 3.3M 0.82
Vigil Neuroscience (VIGL) 0.1 $2.5M 472k 5.39
Biomea Fusion (BMEA) 0.1 $2.5M 181k 13.76
Adaptimmune Therapeutics Sponds Adr (ADAP) 0.1 $2.2M 2.8M 0.78
Essa Pharma Com New (EPIX) 0.1 $2.1M 677k 3.09
Applied Therapeutics (APLT) 0.1 $2.0M 809k 2.49
Aeglea Biotherapeutics Com New (SYRE) 0.0 $1.7M 137k 12.25
Neurocrine Biosciences Note 2.250% 5/1 (Principal) 0.0 $1.5M 1.0M 1.50
Leap Therapeutics Com New (LPTX) 0.0 $1.5M 1.1M 1.38
Acelyrin (SLRN) 0.0 $1.4M 142k 10.17
Fate Therapeutics (FATE) 0.0 $1.3M 612k 2.12
Compugen Ord (CGEN) 0.0 $1.2M 1.3M 0.93
Theseus Pharmaceuticals 0.0 $1.2M 437k 2.69
Design Therapeutics (DSGN) 0.0 $1.1M 460k 2.36
Vincerx Pharma Com New (VINC) 0.0 $901k 892k 1.01
Kinnate Biopharma 0.0 $568k 406k 1.40
Nevro Corp Note 2.750% 4/0 (Principal) 0.0 $472k 500k 0.94
Nkarta (NKTX) 0.0 $461k 332k 1.39
Cervomed (CRVO) 0.0 $370k 80k 4.62
Invitae (NVTAQ) 0.0 $354k 586k 0.61
Acelrx Pharmaceuticals Com New (TLPH) 0.0 $184k 317k 0.58
Tempest Therapeutics (TPST) 0.0 $163k 536k 0.30
Atreca Cl A Com (BCEL) 0.0 $95k 363k 0.26
Spero Therapeutics (SPRO) 0.0 $69k 57k 1.21
Gamida Cell SHS 0.0 $54k 52k 1.03
Nuvation Bio *w Exp 07/07/202 (NUVB.WS) 0.0 $13k 134k 0.10