Rock Springs Capital Management

Rock Springs Capital Management as of Dec. 31, 2021

Portfolio Holdings for Rock Springs Capital Management

Rock Springs Capital Management holds 136 positions in its portfolio as reported in the December 2021 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Agilon Health (AGL) 4.7 $202M 7.5M 27.00
Humana (HUM) 3.7 $162M 349k 463.86
Align Technology (ALGN) 3.0 $131M 200k 657.18
Intuitive Surgical Com New (ISRG) 3.0 $129M 360k 359.30
Insulet Corporation (PODD) 2.9 $123M 464k 266.07
UnitedHealth (UNH) 2.8 $121M 240k 502.14
IDEXX Laboratories (IDXX) 2.7 $119M 180k 658.46
Hca Holdings (HCA) 2.7 $116M 450k 256.92
Argenx Se Sponsored Adr (ARGX) 2.5 $110M 315k 350.19
Neurocrine Biosciences (NBIX) 2.2 $94M 1.1M 85.17
Blueprint Medicines (BPMC) 2.1 $92M 860k 107.11
Agios Pharmaceuticals (AGIO) 2.0 $87M 2.6M 32.87
Immunocore Hldgs Ads (IMCR) 2.0 $85M 2.5M 34.24
Horizon Therapeutics Pub L SHS 1.9 $80M 746k 107.76
Edwards Lifesciences (EW) 1.7 $75M 582k 129.55
Ultragenyx Pharmaceutical (RARE) 1.7 $74M 884k 84.09
Zai Lab Adr (ZLAB) 1.7 $74M 1.2M 62.85
Baxter International (BAX) 1.5 $63M 734k 85.84
Novavax Com New (NVAX) 1.4 $61M 425k 143.07
Mirati Therapeutics 1.4 $60M 410k 146.69
Pacira Pharmaceuticals (PCRX) 1.4 $60M 1.0M 60.17
Nevro (NVRO) 1.3 $58M 714k 81.07
Evolent Health Cl A (EVH) 1.3 $56M 2.0M 27.67
Alnylam Pharmaceuticals (ALNY) 1.3 $56M 333k 169.58
Aclaris Therapeutics (ACRS) 1.3 $56M 3.9M 14.54
Karuna Therapeutics Ord 1.3 $56M 427k 131.00
Freshpet (FRPT) 1.3 $55M 580k 95.27
Ascendis Pharma A/s Sponsored Adr (ASND) 1.2 $54M 400k 134.53
Cerevel Therapeutics Hldng I (CERE) 1.2 $53M 1.6M 32.42
Irhythm Technologies (IRTC) 1.2 $51M 433k 117.69
Kymera Therapeutics (KYMR) 1.1 $47M 742k 63.49
Acadia Healthcare (ACHC) 1.0 $45M 749k 60.70
EXACT Sciences Corporation (EXAS) 1.0 $44M 570k 77.83
Invitae (NVTAQ) 1.0 $43M 2.8M 15.27
Penumbra (PEN) 1.0 $43M 149k 287.32
Shockwave Med 0.9 $40M 223k 178.33
Seagen 0.9 $40M 256k 154.60
Sarepta Therapeutics (SRPT) 0.9 $38M 424k 90.05
Arvinas Ord (ARVN) 0.9 $38M 457k 82.14
Cytokinetics Note 4.000%11/1 (Principal) 0.8 $36M 8.0M 4.46
Warby Parker Cl A Com (WRBY) 0.8 $34M 724k 46.56
Health Catalyst (HCAT) 0.8 $34M 850k 39.62
Verve Therapeutics (VERV) 0.8 $33M 903k 36.87
Covetrus 0.8 $33M 1.7M 19.97
Encompass Health Corp (EHC) 0.8 $33M 503k 65.26
Phreesia (PHR) 0.7 $32M 770k 41.66
Prothena Corp SHS (PRTA) 0.7 $32M 648k 49.40
Accolade (ACCD) 0.7 $32M 1.2M 26.36
Dex (DXCM) 0.7 $31M 57k 536.95
Travere Therapeutics (TVTX) 0.7 $30M 952k 31.04
Abcam Ads 0.7 $30M 1.3M 23.55
CONMED Corporation (CNMD) 0.7 $29M 203k 141.76
Graphite Bio 0.6 $26M 2.1M 12.43
Sierra Oncology Com New 0.6 $26M 1.2M 21.74
Intersect Ent 0.6 $26M 940k 27.31
Mirum Pharmaceuticals (MIRM) 0.6 $25M 1.5M 15.95
Prometheus Biosciences 0.6 $25M 618k 39.54
Xenon Pharmaceuticals (XENE) 0.6 $24M 771k 31.24
BioMarin Pharmaceutical (BMRN) 0.5 $23M 264k 88.35
Madrigal Pharmaceuticals (MDGL) 0.5 $23M 269k 84.74
Pulmonx Corp (LUNG) 0.5 $22M 700k 32.07
Dynavax Technologies Corp Com New (DVAX) 0.5 $22M 1.6M 14.07
West Pharmaceutical Services (WST) 0.5 $21M 46k 469.01
Mersana Therapeutics (MRSN) 0.5 $20M 3.2M 6.22
Guardant Health (GH) 0.5 $20M 200k 100.02
Xilio Therapeutics (XLO) 0.4 $19M 1.2M 16.00
Lifestance Health Group (LFST) 0.4 $19M 2.0M 9.52
Legend Biotech Corp Sponsored Ads (LEGN) 0.4 $19M 404k 46.61
Anaptysbio Inc Common (ANAB) 0.4 $19M 539k 34.75
Relay Therapeutics (RLAY) 0.4 $18M 598k 30.71
Immuneering Corp Class A Com (IMRX) 0.4 $18M 1.1M 16.17
Aura Biosciences (AURA) 0.4 $17M 1.0M 16.98
Compass Therapeutics (CMPX) 0.4 $17M 5.3M 3.17
Icosavax 0.4 $17M 736k 22.88
Spero Therapeutics (SPRO) 0.3 $15M 945k 16.01
Gossamer Bio Note 5.000% 6/0 (Principal) 0.3 $15M 15M 0.98
Amarin Corp Spons Adr New (AMRN) 0.3 $15M 4.4M 3.37
Amryt Pharma Sponsored Ads 0.3 $14M 1.3M 10.80
Macrogenics (MGNX) 0.3 $14M 857k 16.05
Collegium Pharmaceutical Inc Common Stock Usd (COLL) 0.3 $14M 725k 18.68
Novocure Ord Shs (NVCR) 0.3 $13M 175k 75.08
Aadi Bioscience (AADI) 0.3 $13M 539k 24.15
Rigel Pharmaceuticals Com New 0.3 $13M 4.9M 2.65
Akero Therapeutics (AKRO) 0.3 $12M 587k 21.15
Chinook Therapeutics 0.3 $12M 720k 16.31
Amicus Therapeutics (FOLD) 0.3 $12M 1.0M 11.55
Leap Therapeutics 0.3 $11M 3.5M 3.24
Acumen Pharmaceuticals (ABOS) 0.2 $11M 1.6M 6.76
Aurinia Pharmaceuticals (AUPH) 0.2 $11M 457k 22.87
Cullinan Oncology (CGEM) 0.2 $10M 646k 15.43
Orion Acquisition Corp Unit 02/19/2026 0.2 $9.9M 1.0M 9.85
Reneo Pharmaceuticals (RPHM) 0.2 $9.8M 1.1M 8.55
Epizyme 0.2 $9.5M 3.8M 2.50
Olink Hldg Ab Sponsored Ads (OLK) 0.2 $9.4M 515k 18.20
Nurix Therapeutics (NRIX) 0.2 $9.3M 321k 28.95
Mereo Biopharma Group Ads (MREO) 0.2 $8.9M 5.6M 1.60
Biomea Fusion (BMEA) 0.2 $8.7M 1.2M 7.45
Adaptimmune Therapeutics Sponds Adr (ADAP) 0.2 $8.3M 2.2M 3.75
Vincerx Pharma Com New (VINC) 0.2 $8.2M 809k 10.19
Fulcrum Therapeutics (FULC) 0.2 $8.1M 457k 17.69
Nkarta (NKTX) 0.2 $7.8M 507k 15.35
Paratek Pharmaceuticals 0.2 $7.6M 1.7M 4.49
Aeglea Biotherapeutics 0.2 $7.5M 1.6M 4.75
Essa Pharma Com New (EPIX) 0.2 $7.3M 511k 14.20
Spruce Biosciences (SPRB) 0.2 $7.2M 1.6M 4.46
Athira Pharma (ATHA) 0.2 $7.2M 552k 13.03
Design Therapeutics (DSGN) 0.2 $7.2M 335k 21.41
Phasebio Pharmaceuticals 0.2 $6.7M 2.6M 2.61
Day One Biopharmaceuticals I (DAWN) 0.1 $6.4M 382k 16.85
Fate Therapeutics (FATE) 0.1 $6.4M 110k 58.51
Applied Therapeutics (APLT) 0.1 $6.3M 702k 8.95
Rhythm Pharmaceuticals (RYTM) 0.1 $6.3M 627k 9.98
Kinnate Biopharma 0.1 $6.0M 340k 17.72
Inozyme Pharma (INZY) 0.1 $5.9M 869k 6.82
Compugen Ord (CGEN) 0.1 $5.5M 1.3M 4.30
Theseus Pharmaceuticals 0.1 $5.5M 437k 12.68
Gamida Cell SHS 0.1 $5.5M 2.2M 2.54
Prelude Therapeutics (PRLD) 0.1 $4.6M 369k 12.45
Edap Tms S A Sponsored Adr (EDAP) 0.1 $4.6M 761k 5.99
Tempest Therapeutics (TPST) 0.1 $4.3M 824k 5.28
Fusion Pharmaceuticals 0.1 $4.0M 948k 4.17
F-star Therapeutics 0.1 $3.8M 752k 5.02
Travere Therapeutics Note 2.500% 9/1 (Principal) 0.1 $3.6M 3.3M 1.10
Acelrx Pharmaceuticals 0.1 $3.5M 6.3M 0.56
Bcls Acquisition Corp Com Cl A 0.1 $3.0M 309k 9.80
Shattuck Labs (STTK) 0.1 $2.7M 314k 8.51
Jiya Acquisition Corp Com Cl A 0.0 $2.0M 206k 9.77
Poseida Therapeutics I (PSTX) 0.0 $2.0M 290k 6.81
Imara 0.0 $1.9M 842k 2.25
Radius Health Note 3.000% 9/0 (Principal) 0.0 $1.5M 1.5M 0.97
Theravance Biopharma Note 3.250%11/0 (Principal) 0.0 $1.5M 1.5M 0.97
Atreca Cl A Com (BCEL) 0.0 $1.4M 463k 3.03
Neurocrine Biosciences Note 2.250% 5/1 (Principal) 0.0 $1.3M 1.0M 1.26
Pacira Biosciences Note 2.375% 4/0 (Principal) 0.0 $1.0M 1.0M 1.03
Nevro Corp Note 2.750% 4/0 (Principal) 0.0 $556k 500k 1.11
Nuvation Bio *w Exp 07/07/202 (NUVB.WS) 0.0 $253k 134k 1.89