DEERFIELD MANAGEMENT COMPANY, L.P. Q1 2016 Filing

Filed May 16, 2016

Portfolio Value

$2.3T

Holdings

105

Report Date

Q1 2016

Filing Type

13F-HR

All Holdings (105 positions)

#StockSharesValue% PortfolioType
1
HORIZON PHARMA PLC
13,740,261$227.7B9.69%
2
MYLAN N V
1,832,535$84.9B3.62%
3
NXSTAGE MEDICAL INC
5,506,028$82.5B3.51%
4
HEALTHWAYS INC
76,925,000$70.6B3.01%
5
HORIZON PHARMA INVT LTD
82,600,000$70.5B3.00%
6
GSKGLAXOSMITHKLINE PLC
1,675,385$67.9B2.89%
7
AETNA INC NEW
591,465$66.5B2.83%
8
PORTOLA PHARMACEUTICALS INC
3,089,785$63.0B2.68%
9
AVEXIS INC
2,236,701$60.9B2.59%
10
DVADAVITA HEALTHCARE PARTNERS I
822,000$60.3B2.57%
11
EDITEDITAS MEDICINE INC
1,709,400$59.0B2.51%
12
ADEPTUS HEALTH INC
956,533$53.1B2.26%
13
XENOPORT INC
11,572,125$52.2B2.22%
14
VNDAVANDA PHARMACEUTICALS INC
5,996,691$50.1B2.13%
15
GW PHARMACEUTICALS PLC
674,373$48.7B2.07%
16
XNCRXENCOR INC
3,467,512$46.5B1.98%
17
AAC HLDGS INC
2,294,936$45.4B1.93%
18
FLAMEL TECHNOLOGIES SA
4,072,809$45.0B1.91%
19
WBAWALGREENS BOOTS ALLIANCE INC
511,457$43.1B1.83%
20
ENDOLOGIX INC
40,000,000$38.6B1.64%
21
UNIVERSAL AMERN CORP NEW
5,285,500$37.7B1.61%
22
HEARTWARE INTL INC
39,226,000$36.5B1.55%
23
WRIGHT MED GROUP INC
40,050,000$36.0B1.53%
24
ARRAY BIOPHARMA INC
45,000,000$35.9B1.53%
25
SG7SAGE THERAPEUTICS INC
1,113,654$35.7B1.52%
26
AERIEURAERIE PHARMACEUTICALS INC
2,632,482$32.0B1.36%
27
EHTHEHEALTH INC
3,264,588$30.7B1.31%
28
ZELTIQ AESTHETICS INC
1,104,417$30.0B1.28%
29
ENDOLOGIX INC
40,941,000$29.9B1.27%
30
ARRYEURARRAY BIOPHARMA INC
9,529,361$28.1B1.20%
31
FIVE PRIME THERAPEUTICS INC
680,000$27.6B1.18%
32
MCKMCKESSON CORP
175,000$27.5B1.17%
33
HEARTWARE INTL INC
870,634$27.4B1.16%
34
ACORDA THERAPEUTICS INC
1,029,410$27.2B1.16%
35
DBV TECHNOLOGIES S A
817,806$26.6B1.13%
36
RELYPSA INC
1,873,471$25.4B1.08%
37
HEALTHWAYS INC
2,475,387$25.0B1.06%
38
SPECTRANETICS CORP
29,831,000$23.6B1.01%
39
INFIQINFINITY PHARMACEUTICALS INC
4,398,862$23.2B0.99%
40
KEMPHARM INC
1,420,497$20.6B0.88%
41
ZAFGEN INC
3,055,603$20.4B0.87%
42
PRONAI THERAPEUTICS INC
3,001,302$20.2B0.86%
43
RITE AID CORP
2,393,072$19.5B0.83%
44
GBTUSDGLOBAL BLOOD THERAPEUTICS IN
1,193,811$18.9B0.81%
45
AXGNAXOGEN INC
3,381,439$18.1B0.77%
46
AKARI THERAPEUTICS PLC
1,150,700$16.1B0.69%
47
NIVALIS THERAPEUTICS INC
3,732,412$15.6B0.66%
48
LAB 2.75 02/01/34FLUIDIGM CORP DEL
27,715,000$15.4B0.65%
49
ELVANTHEM INC
102,000$14.2B0.60%
50
GLPGGALAPAGOS NV
327,626$13.7B0.58%
51
NVAXNOVAVAX INC
2,456,261$12.7B0.54%
52
RGNXREGENXBIO INC
1,169,042$12.6B0.54%
53
IMPRIVATA INC
983,366$12.4B0.53%
54
CTMXCYTOMX THERAPEUTICS INC
943,433$12.2B0.52%
55
ALIMERA SCIENCES INC
5,878,015$10.3B0.44%
56
PROTEON THERAPEUTICS INC
1,265,343$9.8B0.42%
57
MGNXMACROGENICS INC
517,920$9.7B0.41%
58
INVUITY INC
1,327,009$9.6B0.41%
59
ENDOCHOICE HLDGS INC
1,823,309$9.5B0.40%
60
XLRNACCELERON PHARMA INC
353,491$9.3B0.40%
61
NSTGEURNANOSTRING TECHNOLOGIES INC
606,222$9.2B0.39%
62
ESSA PHARMA INC
2,587,215$8.4B0.36%
63
CEPHEID
7,750,000$6.9B0.29%
64
LOXO ONCOLOGY INC
251,000$6.9B0.29%
65
SEMSELECT MED HLDGS CORP
559,097$6.6B0.28%
66
FOAMIX PHARMACEUTICALS LTD
948,934$6.2B0.26%
67
GENOCEA BIOSCIENCES INC
787,257$6.1B0.26%
68
ARALEZ PHARMACEUTICALS INC
1,644,583$5.8B0.25%
69
JAZZ INVESTMENTS I LTD
5,000,000$5.1B0.22%
70
RIGLUSDRIGEL PHARMACEUTICALS INC
2,397,855$5.0B0.21%
71
NEOS THERAPEUTICS INC
458,332$4.9B0.21%
72
ENDOLOGIX INC
569,895$4.8B0.20%
73
ABMDEURABIOMED INC
49,797$4.7B0.20%
74
OXFORD IMMUNOTEC GLOBAL PLC
464,541$4.6B0.20%
75
CAS MED SYS INC
3,200,000$4.5B0.19%
76
EGALET CORP
597,123$4.1B0.17%
77
ALCOBRA LTD
1,069,914$4.1B0.17%
78
MYOKARDIA INC
374,800$4.0B0.17%
79
PSIVIDA CORP
1,492,824$4.0B0.17%
80
SCYXEURSCYNEXIS INC
848,000$3.4B0.15%
81
STEADYMED LTD
1,346,744$3.3B0.14%
82
CATABASIS PHARMACEUTICALS IN
643,580$3.2B0.14%
83
TONIX PHARMACEUTICALS HLDG C
1,315,551$3.2B0.13%
84
ACURACURA PHARMACEUTICALS INC
1,025,641$2.9B0.12%
85
TRACON PHARMACEUTICALS INC
397,085$2.8B0.12%
86
ARDXARDELYX INC
275,000$2.1B0.09%
87
VYGRVOYAGER THERAPEUTICS INC
235,294$2.1B0.09%
88
ALDXALDEYRA THERAPEUTICS INC
471,259$2.0B0.08%
89
TREURTRILLIUM THERAPEUTICS INC
172,307$1.6B0.07%
90
AGILE THERAPEUTICS INC
250,000$1.6B0.07%
91
TRUPTRUPANION INC
155,236$1.5B0.07%
92
ALPHATEC HOLDINGS INC
4,982,738$1.2B0.05%
93
CDNACAREDX INC
229,000$1.1B0.05%
94
ALLERGAN PLC
3,500$938.0M0.04%
95
STREAMLINE HEALTH SOLUTIONS
662,971$935.0M0.04%
96
VCYTVERACYTE INC
165,097$892.0M0.04%
97
CIDARA THERAPEUTICS INC
68,779$873.0M0.04%
98
CORSICANTO LTD
1,000,000$821.0M0.03%
99
PFEPFIZER INC
25,000$741.0M0.03%
100
ALLIQUA BIOMEDICAL INC
667,246$547.0M0.02%
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