Rock Springs Capital Management

Latest statistics and disclosures from Rock Springs Capital Management's latest quarterly 13F-HR filing:

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Positions held by Rock Springs Capital Management consolidated in one spreadsheet with up to 7 years of data

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Portfolio Holdings for Rock Springs Capital Management

Companies in the Rock Springs Capital Management portfolio as of the June 2021 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Agilon Health 5.6 $284M NEW 7.0M 40.57
Zai Lab Adr (ZLAB) 3.5 $180M +8% 1.0M 176.99
Agios Pharmaceuticals (AGIO) 2.8 $142M 2.6M 55.11
Humana (HUM) 2.6 $134M 303k 442.72
Align Technology (ALGN) 2.3 $115M +5% 188k 611.00
IDEXX Laboratories (IDXX) 2.2 $114M 180k 631.55
Insulet Corporation (PODD) 2.2 $112M +10% 409k 274.51
Intuitive Surgical Com New (ISRG) 2.2 $110M 120k 919.64
Neurocrine Biosciences (NBIX) 2.0 $99M 1.0M 97.32
Novavax Com New (NVAX) 1.9 $97M 455k 212.31
UnitedHealth (UNH) 1.9 $96M -12% 240k 400.44
Argenx Se Sponsored Adr (ARGX) 1.9 $95M +5% 315k 301.07
Immunocore Hldgs Ads (IMCR) 1.8 $94M +4% 2.4M 39.05
Hca Holdings (HCA) 1.8 $93M 450k 206.74

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Nevro (NVRO) 1.7 $88M +9% 531k 165.79
Freshpet (FRPT) 1.6 $83M 507k 162.96
Invitae (NVTA) 1.5 $78M +3% 2.3M 33.73
Blueprint Medicines (BPMC) 1.4 $71M +8% 809k 87.96
EXACT Sciences Corporation (EXAS) 1.4 $71M 570k 124.31
Beigene Sponsored Adr (BGNE) 1.4 $69M 200k 343.19
Graphite Bio 1.3 $66M NEW 2.2M 30.73
Aclaris Therapeutics (ACRS) 1.3 $66M +5% 3.8M 17.56
Pacira Pharmaceuticals (PCRX) 1.2 $62M 1.0M 60.68
Edwards Lifesciences (EW) 1.2 $60M 582k 103.57
Phreesia (PHR) 1.2 $59M +12% 960k 61.30
Horizon Therapeutics Pub L SHS (HZNP) 1.2 $59M 625k 93.64
Verve Therapeutics 1.1 $58M NEW 963k 60.25
Eargo (EAR) 1.1 $58M +70% 1.5M 39.91
Teleflex Incorporated (TFX) 1.0 $52M 130k 401.79
Mirati Therapeutics (MRTX) 1.0 $52M 319k 161.53
Alnylam Pharmaceuticals (ALNY) 1.0 $51M 300k 169.52
Prothena Corp SHS (PRTA) 1.0 $49M -17% 950k 51.41
Arvinas Ord (ARVN) 1.0 $48M 626k 77.00
Ultragenyx Pharmaceutical (RARE) 0.9 $44M +3% 465k 95.35
Karuna Therapeutics Ord (KRTX) 0.9 $44M +4% 387k 113.99
Acadia Healthcare (ACHC) 0.9 $44M 700k 62.75
Health Catalyst (HCAT) 0.9 $44M 785k 55.51
Lifestance Health Group 0.8 $42M NEW 1.5M 27.86
Shockwave Med (SWAV) 0.8 $42M 220k 189.73
Bright Health Group 0.8 $41M NEW 2.4M 17.16
Penumbra (PEN) 0.8 $40M 148k 274.06
Ardelyx (ARDX) 0.8 $40M 5.2M 7.58
Seagen (SGEN) 0.8 $40M 250k 157.88
Biogen Idec (BIIB) 0.8 $39M 114k 346.27
Covetrus (CVET) 0.8 $39M +3% 1.5M 27.00
Encompass Health Corp (EHC) 0.8 $39M 500k 78.03
Novocure Ord Shs (NVCR) 0.8 $39M 175k 221.82
Mersana Therapeutics (MRSN) 0.8 $39M +2% 2.8M 13.58
Accolade (ACCD) 0.7 $36M +6% 665k 54.31
Evolent Health Cl A (EVH) 0.7 $36M +17% 1.7M 21.12
Boston Scientific Corporation (BSX) 0.7 $34M 800k 42.76
Ppd (PPD) 0.6 $31M 675k 46.09
Ascendis Pharma A/s Sponsored Adr (ASND) 0.6 $31M 234k 131.55
Kymera Therapeutics (KYMR) 0.6 $30M 627k 48.50
Irhythm Technologies (IRTC) 0.6 $30M +3% 448k 66.35
Cullinan Oncology (CGEM) 0.5 $28M 1.1M 25.75
Adaptive Biotechnologies Cor (ADPT) 0.5 $27M 650k 40.86
Mirum Pharmaceuticals (MIRM) 0.5 $26M 1.5M 17.29
Pulmonx Corp (LUNG) 0.5 $26M 593k 44.12
Allakos (ALLK) 0.5 $26M 306k 85.37
Cerevel Therapeutics Hldng I (CERE) 0.5 $26M 1.0M 25.62
Madrigal Pharmaceuticals (MDGL) 0.5 $26M 263k 97.41
Sarepta Therapeutics (SRPT) 0.5 $26M 329k 77.74
Bolt Biotherapeutics (BOLT) 0.5 $25M +3% 1.6M 15.46
Epizyme (EPZM) 0.5 $25M +7% 3.0M 8.31
Guardant Health (GH) 0.5 $25M 200k 124.19
ACADIA Pharmaceuticals (ACAD) 0.5 $24M -7% 1.0M 24.39
CONMED Corporation (CNMD) 0.4 $22M +90% 163k 137.43
Oak Street Health (OSH) 0.4 $22M 375k 58.57
Travere Therapeutics (TVTX) 0.4 $22M 1.5M 14.59
Collegium Pharmaceutical Inc Common Stock Usd (COLL) 0.4 $22M 920k 23.64
BioMarin Pharmaceutical (BMRN) 0.4 $21M 254k 83.44
Abcam Ads (ABCM) 0.4 $21M +2% 1.1M 19.04
Intersect Ent (XENT) 0.4 $21M +12% 1.2M 17.09
Rigel Pharmaceuticals Com New (RIGL) 0.4 $21M 4.8M 4.34
Sierra Oncology Com New (SRRA) 0.4 $20M 1.0M 19.47
Dex (DXCM) 0.4 $20M +204% 46k 427.00
Innovage Hldg Corp (INNV) 0.4 $19M +90% 903k 21.31
Translate Bio (TBIO) 0.4 $19M +6% 693k 27.54
Amarin Corp Spons Adr New (AMRN) 0.4 $19M +2% 4.3M 4.38
Biomea Fusion 0.4 $18M NEW 1.2M 15.61
Spruce Biosciences (SPRB) 0.4 $18M 1.6M 11.21
Rocket Pharmaceuticals (RCKT) 0.4 $18M 403k 44.29
Kura Oncology (KURA) 0.3 $17M +15% 817k 20.85
Atea Pharmaceuticals (AVIR) 0.3 $17M -53% 791k 21.48
Cytokinetics Note 4.000%11/1 (Principal) 0.3 $17M 8.0M 2.07
Dynavax Technologies Corp Com New (DVAX) 0.3 $17M 1.7M 9.85
Relay Therapeutics (RLAY) 0.3 $17M +78% 450k 36.59
Nkarta (NKTX) 0.3 $16M 498k 31.69
Chiasma (CHMA) 0.3 $15M +49% 3.3M 4.73
Prometheus Biosciences (RXDX) 0.3 $15M +3% 596k 24.56
Olink Hldg Ab Sponsored Ads (OLK) 0.3 $15M +6% 425k 34.42
Applied Therapeutics (APLT) 0.3 $15M 702k 20.78
Mereo Biopharma Group Ads (MREO) 0.3 $14M 4.5M 3.17
Essa Pharma Com New (EPIX) 0.3 $14M 503k 28.57
Inozyme Pharma (INZY) 0.3 $14M 840k 17.04
Anaptysbio Inc Common (ANAB) 0.3 $14M 535k 25.93
Gamida Cell SHS (GMDA) 0.3 $14M 2.1M 6.41
Spero Therapeutics (SPRO) 0.3 $14M 966k 13.96
Akero Therapeutics (AKRO) 0.3 $13M 529k 24.81
Legend Biotech Corp Sponsored Ads (LEGN) 0.3 $13M 313k 41.05
Gossamer Bio Note 5.000% 6/0 (Principal) 0.2 $13M 16M 0.81
Macrogenics (MGNX) 0.2 $12M +15% 456k 26.86
Rhythm Pharmaceuticals (RYTM) 0.2 $12M 606k 19.58
Galapagos Nv Spon Adr (GLPG) 0.2 $11M 165k 68.89
Paratek Pharmaceuticals (PRTK) 0.2 $11M 1.7M 6.82
Aeglea Biotherapeutics (AGLE) 0.2 $11M 1.6M 6.96
Prelude Therapeutics (PRLD) 0.2 $11M 382k 28.63
Xenon Pharmaceuticals (XENE) 0.2 $11M 573k 18.62
Reneo Pharmaceuticals 0.2 $11M NEW 1.1M 9.33
Compugen Ord (CGEN) 0.2 $10M 1.2M 8.28
West Pharmaceutical Services (WST) 0.2 $10M 29k 359.09
Aurinia Pharmaceuticals (AUPH) 0.2 $10M 786k 12.96
Theravance Biopharma (TBPH) 0.2 $10M 688k 14.52
Apellis Pharmaceuticals Call Option (APLS) 0.2 $10M NEW 158k 63.20
Orion Acquisition Corp Unit 02/19/2026 (OHPAU) 0.2 $9.9M 1.0M 9.92
Amicus Therapeutics (FOLD) 0.2 $9.8M 1.0M 9.64
Chinook Therapeutics (KDNY) 0.2 $9.6M 682k 14.12
Shattuck Labs (STTK) 0.2 $9.1M -19% 314k 28.99
F-star Therapeutics (FSTX) 0.2 $9.1M NEW 1.1M 8.59
Day One Biopharmaceuticals I 0.2 $8.5M NEW 374k 22.77
Nurix Therapeutics (NRIX) 0.2 $8.4M 315k 26.53
Constellation Pharmceticls I (CNST) 0.2 $8.4M +6% 247k 33.80
Fibrogen (FGEN) 0.2 $8.3M 313k 26.63
Kinnate Biopharma (KNTE) 0.2 $7.7M 332k 23.28
Athira Pharma (ATHA) 0.2 $7.7M -5% 748k 10.24
Fusion Pharmaceuticals (FUSN) 0.2 $7.7M 948k 8.08
Phasebio Pharmaceuticals (PHAS) 0.1 $6.9M +18% 1.8M 3.72
Protara Therapeutics Com Stk (TARA) 0.1 $6.8M 694k 9.74
Design Therapeutics (DSGN) 0.1 $6.6M 332k 19.89
Adaptimmune Therapeutics Sponds Adr (ADAP) 0.1 $6.6M 1.5M 4.26
Trillium Therapeutics Com New (TRIL) 0.1 $6.1M 629k 9.70
Fate Therapeutics (FATE) 0.1 $6.1M 70k 86.79
Atai Life Sciences Nv SHS 0.1 $5.8M NEW 315k 18.50
Galera Therapeutics (GRTX) 0.1 $5.6M 568k 9.83
Edap Tms S A Sponsored Adr (EDAP) 0.1 $5.4M NEW 761k 7.09
Acelrx Pharmaceuticals (ACRX) 0.1 $5.2M 3.8M 1.38
Atreca Cl A Com (BCEL) 0.1 $3.9M 460k 8.52
Tempest Therapeutics 0.1 $3.5M NEW 310k 11.18
Bcls Acquisition Corp Com Cl A (BLSA) 0.1 $3.3M 309k 10.53
Poseida Therapeutics I (PSTX) 0.1 $2.9M 290k 10.02
Retrophin Note 2.500% 9/1 (Principal) 0.1 $2.8M 3.3M 0.85
Nuvation Bio Com Cl A (NUVB) 0.0 $2.2M -39% 242k 9.31
Eucrates Biomedical Acqu Cor Unit 10/23/2027 (EUCRU) 0.0 $2.1M 206k 10.20
Fs Development Corp Ii Com Cl A (FSII) 0.0 $2.1M 209k 9.98
Turmeric Acquisition Corp Unit 10/08/2025 (TMPMU) 0.0 $2.1M 206k 10.06
Jiya Acquisition Corp Com Cl A (JYAC) 0.0 $2.0M 206k 9.94
Population Health Invs Co In Unit 99/99/9999 (PHICU) 0.0 $2.0M 201k 10.15
Helix Acquisition Corp Com Cl A (HLXA) 0.0 $1.6M 155k 10.35
Theravance Biopharma Note 3.250%11/0 (Principal) 0.0 $1.4M 1.5M 0.95
Radius Health Note 3.000% 9/0 (Principal) 0.0 $1.4M 1.5M 0.93
Neurocrine Biosciences Note 2.250% 5/1 (Principal) 0.0 $1.3M 1.0M 1.35
Pacira Biosciences Note 2.375% 4/0 (Principal) 0.0 $1.1M 1.0M 1.09
Nevro Corp Note 2.750% 4/0 (Principal) 0.0 $866k 500k 1.73
Nuvation Bio *w Exp 07/07/202 (NUVB.WS) 0.0 $348k 134k 2.60
Aerpio Pharmaceuticals (ARPO) 0.0 $225k NEW 133k 1.69

Past Filings by Rock Springs Capital Management

SEC 13F filings are viewable for Rock Springs Capital Management going back to 2013

View all past filings