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Institutional Investment Manager
DEERFIELD MANAGEMENT COMPANY, L.P.
DEERFIELD MANAGEMENT COMPANY, L.P. (CIK: 0001009258) incorporated in Delaware, located at 345 Park Avenue South, 12th Floor, New York, NY. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q1)
Portfolio Summary: 124 holdings with a total value of $3,087,400,000.
#
Name
Shares
Value ($)
%
Options
Notes
101 KINDRED BIOSCIENCES INC 279,204 1,994,000 0.06%
102 IMMUNOMEDICS INCORPORATED 500,000 1,915,000 0.06% Call
103 BOVIE MEDICAL CORP COM 700,000 1,673,000 0.05%
104 ACADIA PHARMACEUTICALS INC COM 49,400 1,610,000 0.05%
105 MEI PHARMA INC 802,568 1,437,000 0.05%
106 PARNELL PHARMACEUTICALS HOLDINGS LTD 253,592 1,245,000 0.04%
107 ILLUMINA INC 6,400 1,188,000 0.04%
108 PLASMATECH BIOPHARMACEUTICAL 349,908 1,099,000 0.04%
109 ALKERMES PLC 17,500 1,067,000 0.03%
110 CORSICANTO LTD 1,000,000 1,044,000 0.03% PRN
111 Agile Therapeutics, Inc. 105,000 973,000 0.03%
112 MIRATI THERAPEUTICS INC COM 32,912 965,000 0.03%
113 ABBOTT LABS 13,000 602,000 0.02%
114 MYLAN N V 10,000 594,000 0.02%
115 NEKTAR THERAPEUTICS COM 45,600 502,000 0.02%
116 AETERNA ZENTARIS INC 898,574 482,000 0.02%
117 MAZOR ROBOTICS LTD 41,861 470,000 0.02%
118 HMS HOLDINGS CORPORATION 29,900 462,000 0.01%
119 RITE AID CORP 52,764 459,000 0.01%
120 CELGENE CORP 3,500 403,000 0.01%
121 PLASMATECH BIOPHARMACEUTICALS 375,000 319,000 0.01%
122 ONCOTHYREON INC COM N/C EFF 6/ 143,200 233,000 0.01%
123 Esperion Therapeutics Inc 2,500 232,000 0.01%
124 IMRIS INC 147,076 141,000 0.00%
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Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001140361-15-020245, filed 2015.05.15). and New Holdings filing (0001140361-15-032272, filed 2015.08.14).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.