Rock Springs Capital Management

Rock Springs Capital Management as of Dec. 31, 2020

Portfolio Holdings for Rock Springs Capital Management

Rock Springs Capital Management holds 154 positions in its portfolio as reported in the December 2020 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Neurocrine Biosciences (NBIX) 3.2 $151M 1.6M 95.85
Irhythm Technologies (IRTC) 3.1 $148M 625k 237.21
UnitedHealth (UNH) 3.0 $142M 405k 350.68
Humana (HUM) 2.5 $117M 285k 410.27
Zai Lab Adr (ZLAB) 2.5 $116M 855k 135.34
Agios Pharmaceuticals (AGIO) 2.3 $109M 2.5M 43.33
Intuitive Surgical Com New (ISRG) 2.1 $98M 120k 818.10
Blueprint Medicines (BPMC) 2.0 $94M 842k 112.15
Align Technology (ALGN) 1.9 $87M 164k 534.38
ACADIA Pharmaceuticals (ACAD) 1.8 $86M 1.6M 53.46
Argenx Se Sponsored Adr (ARGX) 1.8 $85M 288k 294.09
Mirati Therapeutics 1.7 $82M 373k 219.64
Insulet Corporation (PODD) 1.7 $81M 318k 255.63
Ultragenyx Pharmaceutical (RARE) 1.7 $78M 567k 138.43
Invitae (NVTAQ) 1.6 $77M 1.9M 41.81
Hca Holdings (HCA) 1.6 $74M 450k 164.46
Freshpet (FRPT) 1.5 $72M 507k 141.99
Atea Pharmaceuticals (AVIR) 1.5 $71M 1.7M 41.78
Nevro (NVRO) 1.4 $68M 395k 173.10
EXACT Sciences Corporation (EXAS) 1.4 $64M 485k 132.49
Arvinas Ord (ARVN) 1.3 $63M 746k 84.93
Novavax Com New (NVAX) 1.3 $63M 563k 111.51
IDEXX Laboratories (IDXX) 1.3 $63M 125k 499.87
Pacira Pharmaceuticals (PCRX) 1.3 $61M 1.0M 59.84
Beigene Sponsored Adr (BGNE) 1.2 $58M 225k 258.39
Biogen Idec (BIIB) 1.2 $56M 230k 244.86
Sarepta Therapeutics (SRPT) 1.2 $56M 329k 170.49
Mersana Therapeutics (MRSN) 1.2 $55M 2.1M 26.61
Teleflex Incorporated (TFX) 1.1 $54M 130k 411.57
Edwards Lifesciences (EW) 1.1 $53M 582k 91.23
Alexion Pharmaceuticals 1.0 $48M 307k 156.24
Allakos (ALLK) 1.0 $48M 342k 140.00
Phreesia (PHR) 1.0 $46M 850k 54.26
Horizon Therapeutics Pub L SHS 1.0 $46M 625k 73.15
Kymera Therapeutics (KYMR) 0.9 $44M 714k 62.00
Centene Corporation (CNC) 0.9 $44M 730k 60.03
Seagen 0.9 $44M 250k 175.14
Alnylam Pharmaceuticals (ALNY) 0.9 $44M 335k 129.97
Encompass Health Corp (EHC) 0.9 $41M 500k 82.69
Immunovant (IMVT) 0.9 $41M 891k 46.19
Eargo 0.9 $40M 900k 44.82
Inspire Med Sys (INSP) 0.9 $40M 213k 188.09
Spruce Biosciences (SPRB) 0.8 $40M 1.6M 24.31
Ascendis Pharma A/s Sponsored Adr (ASND) 0.8 $39M 234k 166.78
Adaptive Biotechnologies Cor (ADPT) 0.8 $38M 635k 59.13
Covetrus 0.8 $37M 1.3M 28.74
Acadia Healthcare (ACHC) 0.7 $35M 700k 50.26
Pulmonx Corp (LUNG) 0.7 $35M 500k 69.02
Health Catalyst (HCAT) 0.7 $34M 785k 43.53
Ardelyx (ARDX) 0.7 $33M 5.1M 6.47
Nkarta (NKTX) 0.7 $33M 541k 61.47
Novocure Ord Shs (NVCR) 0.6 $30M 175k 173.04
Athira Pharma (ATHA) 0.6 $30M 861k 34.25
Boston Scientific Corporation (BSX) 0.6 $29M 800k 35.95
Bright Horizons Fam Sol In D (BFAM) 0.6 $29M 166k 172.99
Madrigal Pharmaceuticals (MDGL) 0.6 $29M 257k 111.17
Travere Therapeutics (TVTX) 0.6 $28M 1.0M 27.25
Penumbra (PEN) 0.6 $28M 159k 175.00
Epizyme 0.6 $28M 2.6M 10.86
Mirum Pharmaceuticals (MIRM) 0.6 $26M 1.5M 17.46
Incyte Corporation (INCY) 0.6 $26M 300k 86.98
Prelude Therapeutics (PRLD) 0.5 $26M 360k 71.55
Guardant Health (GH) 0.5 $26M 200k 128.88
Shattuck Labs (STTK) 0.5 $26M 489k 52.41
Tg Therapeutics (TGTX) 0.5 $25M 489k 52.02
Karuna Therapeutics Ord 0.5 $25M 244k 101.59
Baxter International (BAX) 0.5 $24M 301k 80.24
Royalty Pharma Shs Class A (RPRX) 0.5 $24M 480k 50.05
Spero Therapeutics (SPRO) 0.5 $24M 1.2M 19.39
Amicus Therapeutics (FOLD) 0.5 $24M 1.0M 23.09
Oak Street Health 0.5 $23M 375k 61.16
Shockwave Med 0.5 $23M 220k 103.72
BioMarin Pharmaceutical (BMRN) 0.5 $22M 254k 87.69
Collegium Pharmaceutical Inc Common Stock Usd (COLL) 0.5 $22M 1.1M 20.03
Rocket Pharmaceuticals (RCKT) 0.5 $22M 400k 54.84
Accolade (ACCD) 0.5 $22M 500k 43.50
Amarin Corp Spons Adr New (AMRN) 0.4 $21M 4.2M 4.89
Coherus Biosciences (CHRS) 0.4 $20M 1.2M 17.38
Abcam Ads 0.4 $20M 925k 21.55
Ppd 0.4 $18M 525k 34.22
Gamida Cell SHS 0.4 $18M 2.1M 8.39
Aclaris Therapeutics (ACRS) 0.4 $17M 2.7M 6.47
Cytokinetics Note 4.000%11/1 (Principal) 0.4 $17M 8.0M 2.16
Inozyme Pharma (INZY) 0.4 $17M 831k 20.64
Relay Therapeutics (RLAY) 0.4 $17M 412k 41.56
Rigel Pharmaceuticals Com New 0.4 $17M 4.7M 3.50
Kura Oncology (KURA) 0.4 $17M 508k 32.66
Cerevel Therapeutics Hldng I (CERE) 0.4 $17M 999k 16.58
Galapagos Nv Spon Adr (GLPG) 0.3 $16M 165k 98.98
Intersect Ent 0.3 $16M 700k 22.90
Protara Therapeutics Com Stk (TARA) 0.3 $16M 643k 24.21
Rhythm Pharmaceuticals (RYTM) 0.3 $15M 490k 29.73
Jazz Pharmaceuticals Shs Usd (JAZZ) 0.3 $14M 88k 165.05
Myovant Sciences 0.3 $14M 515k 27.62
Gossamer Bio Note 5.000% 6/0 (Principal) 0.3 $14M 16M 0.91
Applied Therapeutics (APLT) 0.3 $14M 636k 22.01
Gw Pharmaceuticals Ads 0.3 $14M 119k 115.41
Compugen Ord (CGEN) 0.3 $14M 1.1M 12.11
Prothena Corp SHS (PRTA) 0.3 $14M 1.1M 12.01
Akero Therapeutics (AKRO) 0.3 $13M 515k 25.80
Kinnate Biopharma 0.3 $13M 325k 39.78
Aeglea Biotherapeutics 0.3 $12M 1.6M 7.87
Five Prime Therapeutics 0.3 $12M 722k 17.01
Theravance Biopharma (TBPH) 0.3 $12M 678k 17.77
Translate Bio 0.3 $12M 644k 18.43
Fibrogen (FGEN) 0.2 $12M 309k 37.09
Fusion Pharmaceuticals 0.2 $11M 948k 11.75
Ngm Biopharmaceuticals 0.2 $11M 361k 30.29
10x Genomics Cl A Com (TXG) 0.2 $11M 76k 141.61
Aurinia Pharmaceuticals (AUPH) 0.2 $11M 774k 13.83
Chinook Therapeutics 0.2 $11M 669k 15.86
Paratek Pharmaceuticals 0.2 $11M 1.7M 6.26
Chiasma 0.2 $9.3M 2.1M 4.35
Trillium Therapeutics Com New 0.2 $9.1M 619k 14.71
Sierra Oncology Com New 0.2 $9.1M 567k 16.03
CONMED Corporation (CNMD) 0.2 $8.7M 78k 112.00
Legend Biotech Corp Sponsored Ads (LEGN) 0.2 $8.7M 309k 28.16
Nurix Therapeutics (NRIX) 0.2 $8.5M 257k 32.88
Adaptimmune Therapeutics Sponds Adr (ADAP) 0.2 $8.3M 1.5M 5.39
West Pharmaceutical Services (WST) 0.2 $8.1M 29k 283.30
Imara 0.2 $7.9M 361k 22.05
Xenon Pharmaceuticals (XENE) 0.2 $7.9M 515k 15.38
Uniqure Nv SHS (QURE) 0.2 $7.5M 209k 36.13
Dynavax Technologies Corp Com New (DVAX) 0.2 $7.3M 1.6M 4.45
Atreca Cl A Com (BCEL) 0.2 $7.3M 451k 16.15
Odonate Therapeutics Ord 0.2 $7.3M 378k 19.20
Macrogenics (MGNX) 0.2 $7.1M 310k 22.86
Onespaworld Holdings Ltd onespaworld hold (OSW) 0.1 $7.0M 690k 10.14
Insmed Note 1.750% 1/1 (Principal) 0.1 $6.8M 6.0M 1.13
Constellation Pharmceticls I 0.1 $6.7M 233k 28.80
Anaptysbio Inc Common (ANAB) 0.1 $6.7M 309k 21.50
Galera Therapeutics (GRTX) 0.1 $5.8M 568k 10.23
Iteos Therapeutics (ITOS) 0.1 $5.4M 160k 33.82
Healthequity (HQY) 0.1 $5.2M 75k 69.71
Panacea Acquisition Corp Unit 99/99/9999 0.1 $5.1M 402k 12.76
Certara Ord (CERT) 0.1 $5.1M 150k 33.72
Acelrx Pharmaceuticals 0.1 $4.7M 3.8M 1.24
Phasebio Pharmaceuticals 0.1 $4.4M 1.3M 3.36
Bcls Acquisition Corp Com Cl A 0.1 $3.4M 309k 11.14
Retrophin Note 2.500% 9/1 (Principal) 0.1 $3.3M 3.3M 1.02
Poseida Therapeutics I (PSTX) 0.1 $3.2M 290k 10.97
Global Cord Blood Corporatio SHS (CORBF) 0.1 $2.9M 775k 3.71
Lifesci Acquisition Ii Corp 0.0 $2.2M 206k 10.67
Eucrates Biomedical Acqu Cor Unit 10/23/2027 0.0 $2.2M 206k 10.66
Jiya Acquisition Corp Com Cl A 0.0 $2.1M 206k 10.30
Turmeric Acquisition Corp Unit 10/08/2025 0.0 $2.1M 206k 10.27
Population Health Invs Co In Unit 99/99/9999 0.0 $2.1M 201k 10.45
Helix Acquisition Corp Com Cl A 0.0 $1.8M 155k 11.37
Theravance Biopharma Note 3.250%11/0 (Principal) 0.0 $1.4M 1.5M 0.95
Neurocrine Biosciences Note 2.250% 5/1 (Principal) 0.0 $1.4M 1.0M 1.39
Radius Health Note 3.000% 9/0 (Principal) 0.0 $1.3M 1.5M 0.90
Pacira Biosciences Note 2.375% 4/0 (Principal) 0.0 $1.1M 1.0M 1.15
Annexon (ANNX) 0.0 $1.1M 45k 25.04
Nevro Corp Note 2.750% 4/0 (Principal) 0.0 $912k 500k 1.82