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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 (2016Q4)
Original 13F HR (0001140361-17-007402) filed in 2017.02.14
#
Name
Shares
Value ($)
%
Options
Notes
51 HUMANA INC 198,000 40,398 1.66%
52 HORIZON PHARMA PLC SHS 8,956,988 144,924 5.96%
53 HORIZON PHARMA INV LTD 2.500000 03/15/20 82,600,000 78,342 3.22% PRN
54 HEALTHWAYS INC 25,000,000 32,381 1.33% PRN
55 GW PHARMACEUTICALS PLC 928,192 103,725 4.27%
56 GLOBUS MED INC 1,036,000 25,703 1.06%
57 GLOBAL BLOOD THERAPEUTICS INCORPORATED 171,428 2,477 0.10%
58 GLAUKOS CORP 393,228 13,488 0.55%
59 GENOCEA BIOSCIENCES INC 687,257 2,831 0.12%
60 GALAPAGOS NV 423,112 27,160 1.12%
61 Foamix Pharmaceuticals Ltd. 1,232,844 13,685 0.56%
62 FLUIDIGM CORP DEL 27,715,000 19,228 0.79% PRN
63 FLAMEL TECHNOLOGIES SA SPONSORED ADR 4,072,809 42,316 1.74%
64 FIVE PRIME THERAPEUTICS INC 138,000 6,915 0.28%
65 EXACT SCIENCES CORP 500,000 6,680 0.27%
66 ESSA Pharma 2,121,601 4,646 0.19%
67 EPIZYME INC COM 1,601,049 19,373 0.80%
68 ENDOLOGIX INC 51,117,000 46,140 1.90% PRN
69 ENDOLOGIX INC 40,500,000 35,425 1.46% PRN
70 EHEALTH INC COM 2,640,609 28,122 1.16%
71 EDITAS MEDICINE INC 1,709,400 27,744 1.14%
72 DBV TECHNOLOGIES S A 1,743,229 61,240 2.52%
73 Catabasis Pharmaceuticals Inc 682,940 2,465 0.10%
74 CYTOMX THERAPEUTICS INC COM 943,433 10,368 0.43%
75 CLOVIS ONCOLOGY INC 16,500,000 16,979 0.70% PRN
76 CENTENE CORP DEL 603,643 34,112 1.40%
77 CELLDEX THERAPEUTICS INC NEW 632,944 2,241 0.09%
78 CAS MED SYS INC 3,200,000 5,152 0.21%
79 BLUEPRINT MEDICINES CORP COM 1,842,415 51,680 2.13%
80 BLUEBIRD BIO INC 302,027 18,635 0.77%
81 BIOSCRIP INC 1,971,228 2,050 0.08%
82 BIOCRYST PHARMACEUTICALS 3,237,734 20,495 0.84%
83 Ascendis Pharma 1,050,000 21,252 0.87%
84 Agile Therapeutics, Inc. 398,000 2,269 0.09%
85 AXOVANT SCIENCES LTD 568,005 7,055 0.29%
86 AXOGEN INC 1,838,225 16,544 0.68%
87 AVEXIS INC COM 2,236,701 106,758 4.39%
88 AUDENTES THERAPEUTICS INC 1,403,653 25,645 1.06%
89 ARRAY BIOPHARMA INC 3 06/01/2020 45,000,000 62,545 2.57% PRN
90 ARRAY BIOPHARMA INC 1,650,000 14,504 0.60%
91 ARDELYX INC COM 373,643 5,306 0.22%
92 ARALEZ PHARMACEUTICALS INC 1,644,583 7,253 0.30%
93 ANTHEM INC 318,000 45,719 1.88%
94 ALIMERA SCIENCES INC 5,878,015 6,348 0.26%
95 AKARI THERAPEUTICS PLC 1,150,700 8,101 0.33%
96 AETNA INC NEW 242,000 30,010 1.23%
97 AERIE PHARMACEUTICALS INC 1,838,829 69,600 2.86%
98 ADVANCED ACCELERATOR APPLIC SPONSORED ADS 210,000 5,620 0.23%
99 ADEPTUS HEALTH INC CL A 1,600,861 12,231 0.50%
100 ACURA PHARMACEUTICALS INC 1,025,641 786 0.03%
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