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Rock Springs Capital Management LP

Q4 2015 Holdings

Filed 2016-02-16 | 120 holdings | $156.2M | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Acadia Healthcare Company in(ACHC)COM00404A109$42.2M675,00027.0%
Collegium Pharmaceutical Inc(COLL)COM19459J104$27.7M1,005,48717.7%
Aclaris Therapeutics Inc(ACRS)COM00461U105$24.1M896,15415.5%
Biogen Inc(BIIB)COM09062X103$15.5M50,6509.9%
Ardelyx Inc(ARDX)COM039697107$12.4M682,5007.9%
Adaptimmune Therapeutics PLC(ADAPY)SPONDS ADR00653A107$9.2M765,0015.9%
Biomarin Pharmaceutical Inc(BMRN)COM09061G101$7.3M70,0004.7%
Coherus Biosciences Inc(CHRS)COM19249H103$6.5M282,0004.1%
Abbvie Inc(ABBV)COM00287Y109$5.2M87,5003.3%
Ascendis Pharma A S(ASND)SPONSORED ADR04351P101$4.9M270,0003.2%
Allergan PLCSHSG0177J108$50.6K162,0000.0%
Aetna Inc NewCOM00817Y108$44.4K411,0000.0%
Alexion Pharmaceuticals Inc(ALXN)COM015351109$36.8K193,0000.0%
Radius Health IncCOM NEW750469207$36.8K597,5000.0%
Gilead Sciences Inc(GILD)COM375558103$32.9K325,3000.0%
Baxalta IncCOM07177M103$31.6K810,0000.0%
Pfizer Inc(PFE)COM717081103$31.5K975,0000.0%
HCA Holdings Inc(HCA)COM40412C101$29.1K430,0000.0%
Celgene Corp(CELG)COM151020104$27.5K230,0000.0%
Spark Therapeutics IncCOM84652J103$25.4K560,0000.0%
Advanced Accelerator ApplicSPONSORED ADS00790T100$25.0K800,0000.0%
Teva Pharmaceutical Inds LTD(TEVA)ADR881624209$24.9K379,3000.0%
Medicines CoCOM584688105$23.3K625,0000.0%
Lilly ELI & Co(LLY)COM532457108$23.2K275,8970.0%
Intuitive Surgical Inc(ISRG)COM NEW46120E602$21.6K39,5000.0%
Neurocrine Biosciences Inc(NBIX)COM64125C109$21.4K377,5000.0%
Pacira Pharmaceuticals Inc(PCRX)COM695127100$20.0K260,0000.0%
Cigna CorporationCOM125509109$17.9K122,0000.0%
Tesaro IncCOM881569107$17.5K334,0000.0%
Prothena Corp PLC(PRTA)SHSG72800108$16.9K248,0000.0%
Anthem Inc(ELV)COM036752103$16.8K120,8000.0%
Wellcare Health Plans IncCOM94946T106$16.8K214,5000.0%
Mckesson Corp(MCK)COM58155Q103$14.3K72,5000.0%
Thermo Fisher Scientific Inc(TMO)COM883556102$14.2K100,0000.0%
Mednax Inc(MD)COM58502B106$13.8K193,0000.0%
Incyte Corp(INCY)COM45337C102$13.8K127,0000.0%
Galapagos NV(GLPG)SPON ADR36315X101$13.2K210,0000.0%
Amgen Inc(AMGN)COM031162100$13.1K80,9000.0%
Retrophin IncCOM761299106$13.0K675,0000.0%
Therapeuticsmd IncCOM88338N107$12.3K1,185,0000.0%
Achillion Pharmaceuticals in(ACHNEUR)COM00448Q201$11.9K1,105,0000.0%
Ultragenyx Pharmaceutical in(RARE)COM90400D108$11.8K105,5000.0%
Aduro Biotech Inc(ADROEUR)COM00739L101$11.7K415,0000.0%
PRA Health Sciences Inc(PRAH)COM69354M108$11.5K253,0000.0%
Jazz Pharmaceuticals PLC(JAZZ)SHS USDG50871105$11.3K80,3000.0%
Penumbra Inc(PEN)COM70975L107$11.0K205,0000.0%
Wright MED Group N VORD SHS 0.03 PARN96617118$11.0K456,0000.0%
Theravance Biopharma Inc(TBPH)COMG8807B106$10.6K645,0000.0%
Dermira Inc(DERMEUR)COM24983L104$10.0K290,0000.0%
Insys Therapeutics Inc NewCOM NEW45824V209$9.7K338,5000.0%
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