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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 (2014Q2)
Portfolio Summary: 127 holdings with a total value of $2,486,776,000.
#
Name
Shares
Value ($)
%
Options
Notes
51 Allergan plc 100,000 16,922,000 0.68% Call
52 AIR METHODS CORP 312,419 16,136,000 0.65%
53 ZOETIS INC 500,000 16,135,000 0.65% Call
54 BIODELIVERY SCIENCES INTL IN 1,328,300 16,033,000 0.64%
55 LABORATORY CORP AMER HLDGS 151,489 15,512,000 0.62%
56 OVASCIENCE INC COM 1,649,449 15,125,000 0.61%
57 HUMANA INC 114,448 14,617,000 0.59%
58 CIGNA CORPORATION 157,528 14,488,000 0.58%
59 AETNA INC NEW 168,850 13,690,000 0.55%
60 ENDOLOGIX INC 12,450,000 12,520,000 0.50% PRN
61 ARATANA THERAPEUTICS INC 788,904 12,315,000 0.50%
62 HOLOGIC INC SR STEP CV NT 42 11,016,000 12,030,000 0.48% PRN
63 INOGEN INC COM 527,337 11,897,000 0.48%
64 IMS HEALTH HLDS INC 462,350 11,873,000 0.48%
65 IMMUNOMEDICS INCORPORATED 2,805,972 10,242,000 0.41%
66 HORIZON PHARMA PLC 612,787 9,694,000 0.39%
67 GENOCEA BIOSCIENCES INC 483,219 9,060,000 0.36%
68 ACCURAY INC 5,000,000 8,819,000 0.35% PRN
69 VERTEX PHARMACEUTICALS INC 92,500 8,758,000 0.35%
70 REVANCE THERAPEUTICS INC COM 256,500 8,721,000 0.35%
71 RIGEL PHARMACEUTICAL INC 2,397,855 8,704,000 0.35%
72 STREAMLINE HEALTH SOLUTIONS COM 1,722,600 8,268,000 0.33%
73 ALIMERA SCIENCES INC 1,311,290 7,842,000 0.32%
74 MEI PHARMA INC 1,132,376 7,179,000 0.29%
75 INTERMUNE INC 4,764,000 7,121,000 0.29% PRN
76 KINDRED BIOSCIENCES INC 375,000 6,990,000 0.28%
77 NANOSTRING TECHNOLOGIES INC 454,281 6,792,000 0.27%
78 DISCOVERY LABORATORIES INC N 3,659,700 6,514,000 0.26%
79 ALPHATEC HOLDINGS INC 3,982,738 6,492,000 0.26%
80 CAS MED SYS INC 3,200,000 6,432,000 0.26%
81 KALOBIOS PHARMACEUTICALS INC 2,786,783 6,354,000 0.26%
82 ALERE INC 5,750,000 6,318,000 0.25% PRN
83 ALNYLAM PHARMACEUTICALS INC 100,000 6,317,000 0.25%
84 CONCERT PHARMACEUTICALS INCORPORATED 617,649 6,238,000 0.25%
85 DERMA SCIENCES ORD 517,900 5,987,000 0.24%
86 ANTHERA PHARMACEUTICALS I 1,691,857 5,735,000 0.23%
87 POZEN INC 624,621 5,203,000 0.21%
88 LIPOSCIENCE INC 1,382,350 4,728,000 0.19%
89 SCYNEXIS INC 568,797 4,562,000 0.18%
90 BIOSPECIFICS TECHNOLOGIES CO 168,883 4,553,000 0.18%
91 GW PHARMACEUTICALS PLC 40,000 4,292,000 0.17%
92 TETRAPHASE PHARMACEUTICALS INC COM 310,024 4,182,000 0.17%
93 EAGLE PHARMACEUTICALS INC COM 284,653 4,079,000 0.16%
94 MERGE HEALTHCARE INC 1,658,696 3,765,000 0.15%
95 Foundation Medicine 137,021 3,694,000 0.15%
96 Medtronic Inc 54,800 3,494,000 0.14%
97 LIVANOVA PLC 54,890 3,428,000 0.14%
98 EXELIXIS INC 1,000,000 3,390,000 0.14% Call
99 Sunesis Pharmaceuticals I 505,741 3,297,000 0.13%
100 INTERMUNE INC 73,500 3,245,000 0.13% Call
Page 2 of 3

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001140361-14-032861, filed 2014.08.14).

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.