Rock Springs Capital Management

Rock Springs Capital Management as of Sept. 30, 2021

Portfolio Holdings for Rock Springs Capital Management

Rock Springs Capital Management holds 153 positions in its portfolio as reported in the September 2021 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Agilon Health (AGL) 3.9 $185M 7.1M 26.21
Humana (HUM) 2.8 $133M 342k 389.15
Align Technology (ALGN) 2.8 $133M 200k 665.43
Insulet Corporation (PODD) 2.6 $124M 438k 284.23
Intuitive Surgical Com New (ISRG) 2.5 $119M 120k 994.15
Agios Pharmaceuticals (AGIO) 2.5 $118M 2.6M 46.15
Zai Lab Adr (ZLAB) 2.4 $114M 1.1M 105.39
IDEXX Laboratories (IDXX) 2.4 $112M 180k 621.90
Hca Holdings (HCA) 2.3 $109M 450k 242.72
Neurocrine Biosciences (NBIX) 2.1 $101M 1.1M 95.91
Argenx Se Sponsored Adr (ARGX) 2.0 $95M 315k 302.00
Novavax Com New (NVAX) 2.0 $94M 455k 207.31
UnitedHealth (UNH) 2.0 $94M 240k 390.74
Immunocore Hldgs Ads (IMCR) 1.9 $91M 2.4M 37.07
Blueprint Medicines (BPMC) 1.8 $87M 850k 102.81
Horizon Therapeutics Pub L SHS 1.6 $77M 702k 109.54
Freshpet (FRPT) 1.6 $75M 527k 142.69
Invitae (NVTAQ) 1.6 $74M 2.6M 28.43
Nevro (NVRO) 1.6 $74M 636k 116.38
Ultragenyx Pharmaceutical (RARE) 1.5 $72M 801k 90.19
Aclaris Therapeutics (ACRS) 1.4 $69M 3.8M 18.00
Edwards Lifesciences (EW) 1.4 $66M 582k 113.21
Ascendis Pharma A/s Sponsored Adr (ASND) 1.3 $64M 400k 159.39
Mirati Therapeutics 1.3 $63M 354k 176.91
Phreesia (PHR) 1.3 $60M 970k 61.70
Alnylam Pharmaceuticals (ALNY) 1.2 $59M 311k 188.81
Evolent Health Cl A (EVH) 1.2 $58M 1.9M 31.00
Pacira Pharmaceuticals (PCRX) 1.2 $56M 1.0M 56.00
EXACT Sciences Corporation (EXAS) 1.1 $54M 570k 95.45
Prothena Corp SHS (PRTA) 1.1 $51M 710k 71.23
Teleflex Incorporated (TFX) 1.0 $49M 130k 376.55
Karuna Therapeutics Ord 1.0 $48M 392k 122.33
Arvinas Ord (ARVN) 1.0 $48M 578k 82.18
Cerevel Therapeutics Hldng I (CERE) 1.0 $47M 1.6M 29.50
Shockwave Med 1.0 $45M 220k 205.88
Acadia Healthcare (ACHC) 1.0 $45M 710k 63.78
Verve Therapeutics (VERV) 1.0 $45M 963k 47.00
Kymera Therapeutics (KYMR) 0.9 $43M 733k 58.74
Health Catalyst (HCAT) 0.9 $43M 850k 50.01
Seagen 0.9 $43M 250k 169.80
Penumbra (PEN) 0.8 $39M 148k 266.50
Accolade (ACCD) 0.8 $39M 923k 42.17
Encompass Health Corp (EHC) 0.8 $38M 500k 75.04
Travere Therapeutics (TVTX) 0.8 $36M 1.5M 24.25
Baxter International (BAX) 0.8 $36M 450k 80.43
Warby Parker Cl A Com (WRBY) 0.7 $35M 650k 53.05
Graphite Bio 0.7 $34M 2.1M 16.39
Intersect Ent 0.7 $33M 1.2M 27.20
Sarepta Therapeutics (SRPT) 0.7 $32M 350k 92.48
Allakos (ALLK) 0.7 $32M 306k 105.87
Mirum Pharmaceuticals (MIRM) 0.6 $30M 1.5M 19.92
Covetrus 0.6 $29M 1.6M 18.14
Immuneering Corp Class A Com (IMRX) 0.6 $29M 1.1M 26.55
Sierra Oncology Com New 0.6 $29M 1.3M 21.92
Mersana Therapeutics (MRSN) 0.6 $29M 3.0M 9.43
Cytokinetics Note 4.000%11/1 (Principal) 0.6 $28M 8.0M 3.54
Dynavax Technologies Corp Com New (DVAX) 0.6 $28M 1.4M 19.21
Atea Pharmaceuticals (AVIR) 0.6 $26M 750k 35.06
Irhythm Technologies (IRTC) 0.6 $26M 448k 58.56
Dex (DXCM) 0.5 $25M 47k 546.86
Pulmonx Corp (LUNG) 0.5 $25M 700k 35.98
Guardant Health (GH) 0.5 $25M 200k 125.01
Lifestance Health Group (LFST) 0.5 $25M 1.7M 14.50
Cullinan Oncology (CGEM) 0.5 $24M 1.1M 22.57
Acumen Pharmaceuticals (ABOS) 0.5 $24M 1.6M 14.86
Abcam Ads 0.5 $23M 1.1M 20.27
Aadi Bioscience (AADI) 0.5 $23M 765k 29.37
Amarin Corp Spons Adr New (AMRN) 0.5 $22M 4.3M 5.10
Icosavax 0.5 $22M 734k 29.59
CONMED Corporation (CNMD) 0.4 $21M 163k 130.83
Madrigal Pharmaceuticals (MDGL) 0.4 $21M 263k 79.79
Bolt Biotherapeutics (BOLT) 0.4 $21M 1.6M 12.65
Novocure Ord Shs (NVCR) 0.4 $20M 175k 116.17
BioMarin Pharmaceutical (BMRN) 0.4 $20M 254k 77.29
Oak Street Health 0.4 $19M 441k 42.53
Epizyme 0.4 $18M 3.6M 5.12
Collegium Pharmaceutical Inc Common Stock Usd (COLL) 0.4 $18M 900k 19.74
Rigel Pharmaceuticals Com New 0.4 $17M 4.8M 3.63
Spero Therapeutics (SPRO) 0.4 $17M 942k 18.41
Gossamer Bio Note 5.000% 6/0 (Principal) 0.3 $16M 16M 1.04
Legend Biotech Corp Sponsored Ads (LEGN) 0.3 $16M 315k 50.56
Amryt Pharma Sponsored Ads 0.3 $16M 1.3M 12.04
Kura Oncology (KURA) 0.3 $15M 823k 18.73
Relay Therapeutics (RLAY) 0.3 $15M 470k 31.53
Anaptysbio Inc Common (ANAB) 0.3 $15M 536k 27.12
Prometheus Biosciences 0.3 $15M 610k 23.71
Bright Health Group 0.3 $14M 1.8M 8.16
Leap Therapeutics 0.3 $14M 3.5M 4.01
Nkarta (NKTX) 0.3 $14M 503k 27.81
Biomea Fusion (BMEA) 0.3 $14M 1.2M 11.97
Aurinia Pharmaceuticals (AUPH) 0.3 $14M 613k 22.13
Macrogenics (MGNX) 0.3 $13M 642k 20.94
Vincerx Pharma Com New (VINC) 0.3 $13M 800k 16.17
Fulcrum Therapeutics (FULC) 0.3 $13M 455k 28.21
West Pharmaceutical Services (WST) 0.3 $13M 30k 424.53
Akero Therapeutics (AKRO) 0.3 $13M 569k 22.35
Aeglea Biotherapeutics 0.3 $13M 1.6M 7.95
Olink Hldg Ab Sponsored Ads (OLK) 0.3 $12M 505k 24.25
Rocket Pharmaceuticals (RCKT) 0.3 $12M 403k 29.89
Mereo Biopharma Group Ads (MREO) 0.2 $12M 4.8M 2.42
Applied Therapeutics (APLT) 0.2 $12M 702k 16.60
Prelude Therapeutics (PRLD) 0.2 $11M 362k 31.25
Adaptimmune Therapeutics Sponds Adr (ADAP) 0.2 $11M 2.2M 5.17
Trillium Therapeutics Com New 0.2 $11M 629k 17.56
Orion Acquisition Corp Unit 02/19/2026 0.2 $9.9M 1.0M 9.89
Inozyme Pharma (INZY) 0.2 $9.9M 850k 11.59
Spruce Biosciences (SPRB) 0.2 $9.7M 1.6M 6.01
Amicus Therapeutics (FOLD) 0.2 $9.7M 1.0M 9.55
Nurix Therapeutics (NRIX) 0.2 $9.5M 319k 29.96
Day One Biopharmaceuticals I (DAWN) 0.2 $8.9M 376k 23.73
Xenon Pharmaceuticals (XENE) 0.2 $8.9M 583k 15.28
Chinook Therapeutics 0.2 $8.8M 688k 12.76
Reneo Pharmaceuticals (RPHM) 0.2 $8.5M 1.1M 7.45
Gamida Cell SHS 0.2 $8.4M 2.1M 3.92
Paratek Pharmaceuticals 0.2 $8.1M 1.7M 4.86
Rhythm Pharmaceuticals (RYTM) 0.2 $8.0M 612k 13.06
F-star Therapeutics 0.2 $7.7M 1.1M 7.32
Kinnate Biopharma 0.2 $7.7M 333k 23.02
Compugen Ord (CGEN) 0.2 $7.7M 1.3M 5.97
Fusion Pharmaceuticals 0.2 $7.5M 948k 7.92
Eargo 0.1 $6.6M 975k 6.73
Fate Therapeutics (FATE) 0.1 $6.5M 110k 59.27
Shattuck Labs (STTK) 0.1 $6.4M 314k 20.38
Phasebio Pharmaceuticals 0.1 $5.7M 1.8M 3.11
Athira Pharma (ATHA) 0.1 $5.2M 552k 9.38
Theravance Biopharma (TBPH) 0.1 $5.1M 688k 7.40
Design Therapeutics (DSGN) 0.1 $4.9M 334k 14.69
Edap Tms S A Sponsored Adr (EDAP) 0.1 $4.9M 761k 6.38
Atai Life Sciences Nv SHS (ATAI) 0.1 $4.7M 318k 14.79
Galera Therapeutics (GRTX) 0.1 $4.6M 568k 8.10
Tempest Therapeutics (TPST) 0.1 $4.5M 310k 14.47
Essa Pharma Com New (EPIX) 0.1 $4.1M 508k 8.00
Acelrx Pharmaceuticals 0.1 $3.9M 3.8M 1.02
Innovage Hldg Corp (INNV) 0.1 $3.5M 525k 6.61
Imara 0.1 $3.4M 829k 4.08
Travere Therapeutics Note 2.500% 9/1 (Principal) 0.1 $3.3M 3.3M 1.01
Bcls Acquisition Corp Com Cl A 0.1 $3.1M 309k 9.96
Atreca Cl A Com (BCEL) 0.1 $2.9M 460k 6.23
Nuvation Bio Com Cl A (NUVB) 0.0 $2.4M 237k 9.94
Poseida Therapeutics I (PSTX) 0.0 $2.1M 290k 7.29
Fs Development Corp Ii Com Cl A 0.0 $2.1M 209k 9.95
Eucrates Biomedical Acqu Cor Unit 10/23/2027 0.0 $2.1M 206k 9.95
Turmeric Acquisition Corp Unit 10/08/2025 0.0 $2.0M 206k 9.93
Population Health Invs Co In Unit 99/99/9999 0.0 $2.0M 201k 10.00
Jiya Acquisition Corp Com Cl A 0.0 $2.0M 206k 9.75
Helix Acquisition Corp Com Cl A 0.0 $1.5M 155k 9.95
Theravance Biopharma Note 3.250%11/0 (Principal) 0.0 $1.4M 1.5M 0.93
Radius Health Note 3.000% 9/0 (Principal) 0.0 $1.4M 1.5M 0.91
Neurocrine Biosciences Note 2.250% 5/1 (Principal) 0.0 $1.3M 1.0M 1.34
Pacira Biosciences Note 2.375% 4/0 (Principal) 0.0 $1.0M 1.0M 1.04
Apellis Pharmaceuticals (APLS) 0.0 $872k 27k 32.96
Nevro Corp Note 2.750% 4/0 (Principal) 0.0 $675k 500k 1.35
Nuvation Bio *w Exp 07/07/202 (NUVB.WS) 0.0 $343k 134k 2.56