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Institutional Investment Manager
Rock Springs Capital Management LP
Rock Springs Capital Management LP (CIK: 0001595725) incorporated in Delaware, located at 650 South Exeter Street, Baltimore, MD. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q3)
Original 13F HR (0001172661-15-002063) filed in 2015.11.16
#
Name
Shares
Value ($)
%
Options
Notes
51 COHERUS BIOSCIENCES INC COM 285,000 5,711 0.46%
52 Otonomy Inc 320,800 5,713 0.46%
53 Nivalis Therapeutics Inc 489,000 6,342 0.51%
54 AMICUS THERAPEUTICS INC COM 455,000 6,365 0.52%
55 ENDOCHOICE HLDGS INC 576,000 6,543 0.53%
56 Theravance Biopharma Inc 602,500 6,621 0.54%
57 INSMED INC 365,000 6,778 0.55%
58 JAZZ PHARMACEUTICALS PLC 51,500 6,840 0.56%
59 PACIRA PHARMACEUTICALS INC 168,000 6,905 0.56%
60 DERMIRA INC COM 300,001 7,002 0.57%
61 INTRA-CELLULAR THERAPIES INC 180,000 7,207 0.58%
62 VERTEX PHARMACEUTICALS INC 72,250 7,524 0.61%
63 Wuxi Pharmatech Inc ADR 175,000 7,562 0.61%
64 THORATEC LABS CORP 120,000 7,591 0.62%
65 ACHILLION PHARMACEUTICALS IN 1,125,000 7,774 0.63%
66 GW PHARMACEUTICALS PLC 85,500 7,812 0.63%
67 PENUMBRA INC COM 195,000 7,820 0.63%
68 JUNO THERAPEUTICS INC COM 197,001 8,016 0.65%
69 ADURO BIOTECH INC 415,000 8,039 0.65%
70 IDEXX LAB 112,500 8,353 0.68%
71 GALAPAGOS NV 210,000 8,549 0.69%
72 INSYS THERAPEUTICS INC NEW COM NEW 308,000 8,766 0.71%
73 DAVITA INC 122,050 8,828 0.72%
74 ADAPTIMMUNE THERAPEUTICS PLC 756,100 9,051 0.73%
75 TESARO INCORPORATED 226,000 9,063 0.74%
76 COOPER COS INC 61,900 9,214 0.75%
77 MEDNAX INC 125,000 9,599 0.78%
78 PRA HEALTH SCIENCES INC 253,000 9,824 0.80%
79 CARDIOME PHARMA CORP 1,190,000 10,044 0.82%
80 Anacor Pharmaceuticals Inc 86,000 10,123 0.82%
81 ZS PHARMA INC 155,000 10,177 0.83%
82 ULTRAGENYX PHARMACEUTICAL INC COM 107,000 10,305 0.84%
83 CHIASMA INC 522,500 10,387 0.84%
84 RTI SURGICAL HOLDINGS INC COM 1,860,000 10,565 0.86%
85 PROTHENA CORP PLC 248,000 11,244 0.91%
86 BIOGEN INC 38,650 11,278 0.92%
87 AMGEN INC 83,250 11,515 0.93%
88 CVS HEALTH CORP 120,000 11,578 0.94%
89 ARDELYX INC COM 681,500 11,776 0.96%
90 THERMO FISHER SCIENTIFIC INC 100,000 12,228 0.99%
91 ANTHEM INC 87,500 12,250 0.99%
92 INCYTE CORP 113,000 12,467 1.01%
93 HEALTHSOUTH CORP 337,500 12,950 1.05%
94 MCKESSON CORP 70,000 12,952 1.05%
95 WRIGHT MEDICAL GROUP N.V. 660,000 13,457 1.09%
96 RETROPHIN INC 683,900 13,856 1.12%
97 INOVALON HLDGS INC COM CL A 685,000 14,269 1.16%
98 Heartware International, Inc. 273,000 14,281 1.16%
99 ADEPTUS HEALTH INC 178,000 14,375 1.17%
100 NEUROCRINE BIOSCIE COM USD0.001 374,000 14,881 1.21%
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