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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 (2016Q1)
Original 13F HR (0001140361-16-065661) filed in 2016.05.16
#
Name
Shares
Value ($)
%
Options
Notes
51 ALCOBRA LTD 1,069,914 4,055 0.17%
52 ZELTIQ AESTHETICS INC 1,104,417 29,996 1.28%
53 SAGE THERAPEUTICS INC 1,113,654 35,704 1.52%
54 AKARI THERAPEUTICS PLC 1,150,700 16,110 0.69%
55 REGENXBIO INC COM 1,169,042 12,626 0.54%
56 GLOBAL BLOOD THERAPEUTICS INCORPORATED 1,193,811 18,934 0.81%
57 PROTEON THERAPEUTICS INC 1,265,343 9,794 0.42%
58 TONIX PHARMACEUTICALS HOLDING 1,315,551 3,170 0.13%
59 INVUITY INC 1,327,009 9,581 0.41%
60 STEADYMED LTD 1,346,744 3,313 0.14%
61 KEMPHARM INC 1,420,497 20,597 0.88%
62 PSIVIDA CORP 1,492,824 4,001 0.17%
63 ARALEZ PHARMACEUTICALS INC 1,644,583 5,838 0.25%
64 GLAXOSMITHKLINE PLC 1,675,385 67,937 2.89%
65 EDITAS MEDICINE INC 1,709,400 59,043 2.51%
66 ENDOCHOICE HLDGS INC 1,823,309 9,499 0.40%
67 MYLAN N V 1,832,535 84,938 3.62%
68 RELYPSA INC 1,873,471 25,386 1.08%
69 AVEXIS INC COM 2,236,701 60,928 2.59%
70 AAC HLDGS INC 2,294,936 45,417 1.93%
71 RITE AID CORP 2,393,072 19,504 0.83%
72 RIGEL PHARMACEUTICALS INC 2,397,855 4,988 0.21%
73 NOVAVAX INC 2,456,261 12,674 0.54%
74 Hercules Offshore Inc 2,475,387 24,977 1.06%
75 ESSA Pharma 2,587,215 8,408 0.36%
76 AERIE PHARMACEUTICALS INC 2,632,482 32,011 1.36%
77 Sierra Oncology, Inc. 3,001,302 20,229 0.86%
78 ZAFGEN INC COM 3,055,603 20,411 0.87%
79 PORTOLA PHARMACEUTICALS INC 3,089,785 63,032 2.68%
80 CAS MED SYS INC 3,200,000 4,544 0.19%
81 EHEALTH INC COM 3,264,588 30,654 1.31%
82 AXOGEN INC 3,381,439 18,125 0.77%
83 XENCOR INC COM 3,467,512 46,534 1.98%
84 Nivalis Therapeutics Inc 3,732,412 15,564 0.66%
85 FLAMEL TECHNOLOGIES SA SPONSORED ADR 4,072,809 44,964 1.91%
86 INFINITY PHARMACEUTICALS INC 4,398,862 23,182 0.99%
87 ALPHATEC HOLDINGS INC 4,982,738 1,196 0.05%
88 JAZZ INVESTMENTS I LTD 5,000,000 5,111 0.22% PRN
89 UNIVERSAL AMERN CORP NEW 5,285,500 37,738 1.61%
90 NXSTAGE MED INC COM 5,506,028 82,535 3.51%
91 ALIMERA SCIENCES INC 5,878,015 10,287 0.44%
92 VANDA PHARMACEUTICALS INC COM 5,996,691 50,132 2.13%
93 CEPHEID 7,750,000 6,917 0.29% PRN
94 ARRAY BIOPHARMA INC 9,529,361 28,112 1.20%
95 XENOPORT INC 11,572,125 52,190 2.22%
96 HORIZON PHARMA PLC SHS 13,740,261 227,676 9.69%
97 FLUIDIGM CORP DEL 27,715,000 15,353 0.65% PRN
98 SPECTRANETICS CORP 29,831,000 23,643 1.01% PRN
99 HEARTWARE INTL INC 39,226,000 36,498 1.55% PRN
100 ENDOLOGIX INC 40,000,000 38,632 1.64% PRN
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