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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 (2014Q1)
Original 13F HR (0001140361-14-021676) filed in 2014.05.15
#
Name
Shares
Value ($)
%
Options
Notes
101 ANTARES PHARMA INC 9,488,461 33,210 1.36%
102 INTERMUNE INC 1,000,000 33,470 1.37% Call
103 BIODELIVERY SCIENCES INTL IN 3,986,760 33,648 1.37%
104 DYAX CORP COM CVR 3,786,478 34,003 1.39%
105 AMAG PHARMACEUTICALS INC 34,520,000 34,986 1.43% PRN
106 HOLOGIC INC SR STEP CV NT 42 37,516,000 38,347 1.57% PRN
107 INSMED INC 2,016,147 38,387 1.57%
108 INTEGRA LIFESCIENCES HLDGS C 41,523,000 43,698 1.78% PRN
109 NXSTAGE MED INC COM 3,801,175 48,427 1.98%
110 Questcor 750,000 48,698 1.99% Call
111 INTERMUNE INC 40,295,000 51,373 2.10% PRN
112 ABBVIE INC 1,025,000 52,685 2.15%
113 INFINITY PHARMACEUTICALS INC 4,444,027 52,839 2.16%
114 INTERMUNE INC 1,583,942 53,015 2.16%
115 ARRAY BIOPHARMA INC 12,205,673 57,367 2.34%
116 VOLCANO CORPORATION 60,500,000 59,767 2.44% PRN
117 AUSPEX PHARMACEUTICALS INC 1,988,990 61,181 2.50%
118 Questcor 1,039,865 67,518 2.76%
119 DICERNA PHARMACEUTICALS INC 2,428,569 68,607 2.80%
120 LABORATORY CORP AMER HLDGS 709,689 69,699 2.85%
121 AUXILIUM PHARMACEUTICALS INC 2,566,705 69,763 2.85%
122 FLAMEL TECHNOLOGIES SA SPONSORED ADR 5,258,475 70,464 2.88%
123 DENDREON CORP 183,660,000 133,789 5.46% PRN
124 HUMANA INC 1,280,000 144,282 5.89% Call
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