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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 HORIZON PHARMA PLC 8,956,988 144,924 5.96%
52 HUMANA INC 198,000 40,398 1.66%
53 Hercules Offshore Inc 76,000 1,729 0.07%
54 INVUITY INC 1,690,498 9,720 0.40%
55 IONIS PHARMACEUTICALS INC COM 214,095 10,240 0.42%
56 ISIS PHARMACEUTICALS INC DEL SR CONV NT 1 21 33,186,000 33,802 1.39% PRN
57 KEMPHARM INC 1,084,443 3,199 0.13%
58 KERYX BIOPHARMACEUTICALS INCORPORATED 1,291,531 7,568 0.31%
59 KITE PHARMA INCORPORATED 297,902 13,358 0.55%
60 LANNET INC COM NEW 2,007,551 44,266 1.82%
61 LOXO ONCOLOGY INC COM 251,000 8,061 0.33%
62 MALLINCKRODT PUB LTD CO 407,000 20,277 0.83%
63 MOLINA HEALTHCARE INC 25,000,000 28,480 1.17% PRN
64 MYLAN N V 1,766,378 67,387 2.77%
65 MYLAN N V 450,000 17,168 0.71% Call
66 MYOKARDIA INC 424,800 5,501 0.23%
67 MYOVANT SCIENCES LTD 1,496,675 18,619 0.77%
68 NANOSTRING TECHNOLOGIES INC 139,000 3,100 0.13%
69 NEOS THERAPEUTICS INC COM 229,166 1,341 0.06%
70 NEVRO CORP 27,600,000 29,494 1.21% PRN
71 NEVRO CORP COM 751,298 54,589 2.25%
72 NOVELION THERAPEUTICS INC 170,454 1,435 0.06%
73 NXSTAGE MED INC COM 4,258,196 111,607 4.59%
74 Nivalis Therapeutics Inc 3,732,412 8,361 0.34%
75 OCERA THERAPEUTICS INC 572,893 1,203 0.05%
76 Oxford Immunotec Global PLC 529,197 7,911 0.33%
77 PARATEK PHARMACEUTICALS INC 100,000 1,540 0.06%
78 PORTOLA PHARMACEUTICALS INC 4,654,447 104,446 4.30%
79 PROTEOSTASIS THERAPEUTICS IN COM 186,000 2,280 0.09%
80 PSIVIDA CORP 1,492,824 2,553 0.11%
81 Proteon Therapeutics Inc 1,332,599 2,532 0.10%
82 RA PHARMACEUTICALS INC COM 323,630 4,916 0.20%
83 SANGAMO THERAPEUTICS INCORPORATED 837,963 2,556 0.11%
84 SCYNEXIS INC 1,048,000 3,343 0.14%
85 SELECTA BIOSCIENCES INC 853,205 14,632 0.60%
86 SOCIETAL CDMO INC 2,075,000 16,725 0.69%
87 SPARK THERAPEUTICS INCORPORATED 283,000 14,122 0.58%
88 STEADYMED LTD 1,756,370 4,567 0.19%
89 STREAMLINE HEALTH SOLUTIONS COM 662,971 829 0.03%
90 SYROS PHARMACEUTICALS INC 1,812,778 22,043 0.91%
91 Sierra Oncology, Inc. 1,166,619 1,738 0.07%
92 TESARO INCORPORATED 112,200 15,089 0.62%
93 THRESHOLD PHARMACEUTICAL INC 2,202,160 971 0.04%
94 TRN 48,000,000 40,401 1.66% PRN
95 UNIVERSAL AMERN CORP NEW 3,774,090 37,552 1.55%
96 VANDA PHARMACEUTICALS INC COM 3,424,676 54,624 2.25%
97 VOYAGER THERAPEUTICS INC 235,294 2,998 0.12%
98 WALGREENS BOOTS ALLIANCE INC 355,957 29,459 1.21%
99 WAVE LIFE SCIENCES LTD 472,124 12,346 0.51%
100 WRIGHT MED GROUP INC SR CONV NT 2 20 40,050,000 41,818 1.72% PRN
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