DEERFIELD MANAGEMENT COMPANY, L.P. Q1 2018 Filing

Filed May 15, 2018

Portfolio Value

$2.9T

Holdings

116

Report Date

Q1 2018

Filing Type

13F-HR

All Holdings (116 positions)

#StockSharesValue% PortfolioType
1
MALLINCKRODT PUB LTD CO
8,621,383$124.8B4.33%
2
MYLAN N V
2,548,111$104.9B3.63%
3
FIXXEURHOMOLOGY MEDICINES INC
5,227,035$97.7B3.39%
4
HORIZON PHARMA PLC
6,609,894$93.9B3.25%
5
AVEXIS INC
755,798$93.4B3.24%
6
HORIZON PHARMA INVT LTD
99,100,000$91.1B3.15%
7
ANABANAPTYSBIO INC
794,338$82.7B2.86%
8
CVSCVS HEALTH CORP
1,116,800$69.5B2.41%Call
9
DBV TECHNOLOGIES S A
2,900,000$66.9B2.32%
10
CNCCENTENE CORP DEL
588,000$62.8B2.18%
11
KEMPHARM INC
75,000,000$57.3B1.98%
12
MYOKARDIA INC
1,068,680$52.2B1.81%
13
GKOSGLAUKOS CORP
1,643,031$50.7B1.76%
14
DC4DEXCOM INC
649,000$48.1B1.67%
15
ACRSACLARIS THERAPEUTICS INC
2,745,705$48.1B1.67%
16
ISIS PHARMACEUTICALS INC DEL
45,700,000$45.3B1.57%
17
LN5LANNET INC
2,741,077$44.0B1.52%
18
ELVANTHEM INC
191,000$42.0B1.45%
19
AUDENTES THERAPEUTICS INC
1,384,470$41.6B1.44%
20
TRIB 4 04/01/45TRINITY BIOTECH INVT LTD
48,000,000$38.5B1.34%
21
EDITEDITAS MEDICINE INC
1,158,841$38.4B1.33%
22
WRIGHT MED GROUP N V
31,500,000$35.8B1.24%
23
BCRXBIOCRYST PHARMACEUTICALS
7,366,460$35.1B1.22%
24
ENDOLOGIX INC
40,500,000$34.9B1.21%
25
2L9BLUEPRINT MEDICINES CORP
378,950$34.8B1.20%
26
INTERSECT ENT INC
832,500$32.7B1.13%
27
PORTOLA PHARMACEUTICALS INC
1,000,000$32.7B1.13%Put
28
DVADAVITA INC
486,427$32.1B1.11%
29
SEMSELECT MED HLDGS CORP
1,858,000$32.1B1.11%
30
GSKGLAXOSMITHKLINE PLC
810,000$31.6B1.10%
31
ASNDASCENDIS PHARMA A S
482,467$31.6B1.09%
32
NEVRO CORP
27,600,000$31.3B1.08%
33
UHSUNIVERSAL HLTH SVCS INC
262,000$31.0B1.07%
34
AGIOAGIOS PHARMACEUTICALS INC
366,000$29.9B1.04%
35
NTRANATERA INC
3,180,000$29.5B1.02%
36
ACHCACADIA HEALTHCARE COMPANY IN
741,016$29.0B1.01%
37
INTERCEPT PHARMACEUTICALS IN
36,000,000$28.6B0.99%
38
AETNA INC NEW
165,000$27.9B0.97%
39
AVDLAVADEL PHARMACEUTICALS PLC
3,788,540$27.6B0.96%
40
ARNAEURARENA PHARMACEUTICALS INC
697,194$27.5B0.95%
41
XNCRXENCOR INC
882,462$26.5B0.92%
42
AERIEURAERIE PHARMACEUTICALS INC
484,055$26.3B0.91%
43
ARGXARGENX SE
319,920$25.7B0.89%
44
GW PHARMACEUTICALS PLC
225,452$25.4B0.88%
45
DFB HEALTHCARE ACQUISTION CO
2,500,000$25.1B0.87%
46
XLRNACCELERON PHARMA INC
615,000$24.0B0.83%
47
ENDOCYTE INC
2,627,540$23.9B0.83%
48
K2M GROUP HLDGS INC
20,000,000$23.4B0.81%
49
WBAWALGREENS BOOTS ALLIANCE INC
356,000$23.3B0.81%
50
MELINTA THERAPEUTICS INC
3,127,846$23.1B0.80%
51
AIMMUNE THERAPEUTICS INC
710,210$22.6B0.78%
52
BIOHAVEN PHARMACTL HLDG CO L
869,000$22.4B0.78%
53
DEPOMED INC
27,019,000$22.0B0.76%
54
CTMXCYTOMX THERAPEUTICS INC
753,322$21.4B0.74%
55
GYRECATALYST BIOSCIENCES INC
830,605$21.4B0.74%
56
AAC HLDGS INC
1,853,998$21.3B0.74%
57
RADIUS HEALTH INC
21,000,000$21.1B0.73%
58
MCKMCKESSON CORP
150,000$21.1B0.73%
59
OXFORD IMMUNOTEC GLOBAL PLC
1,444,000$18.0B0.62%
60
ALNYALNYLAM PHARMACEUTICALS INC
146,000$17.4B0.60%
61
EPIZYME INC
960,970$17.1B0.59%
62
SYROS PHARMACEUTICALS INC
1,268,945$16.5B0.57%
63
MENLO THERAPEUTICS INC
426,749$16.0B0.56%
64
CBAYUSDCYMABAY THERAPEUTICS INC
1,213,181$15.8B0.55%
65
PODDINSULET CORP
171,000$14.8B0.51%
66
EHTHEHEALTH INC
1,030,802$14.8B0.51%
67
GTHXEURG1 THERAPEUTICS INC
373,000$13.8B0.48%
68
MOHMOLINA HEALTHCARE INC
168,000$13.6B0.47%
69
IMMUNOMEDICS INC
930,448$13.6B0.47%
70
ZBHZIMMER BIOMET HLDGS INC
121,000$13.2B0.46%
71
AEGERION PHARMACEUTICALS INC
16,600,000$13.2B0.46%
72
ARDXARDELYX INC
2,602,733$13.1B0.46%
73
GLPGGALAPAGOS NV
130,000$13.0B0.45%
74
SYNLOGIC INC
1,365,143$12.8B0.44%
75
WRIGHT MED GROUP N V
634,000$12.6B0.44%
76
RYTMRHYTHM PHARMACEUTICALS INC
582,010$11.6B0.40%
77
SCTLRECRO PHARMA INC
1,010,000$11.1B0.39%
78
EXASEXACT SCIENCES CORP
12,500,000$11.1B0.38%
79
NUVASIVE INC
10,000,000$11.0B0.38%
80
WVEWAVE LIFE SCIENCES LTD
268,174$10.8B0.37%
81
IGI LABORATORIES INC
11,600,000$10.8B0.37%
82
PFENEX INC
1,659,501$10.0B0.34%
83
ALLSCRIPTS HEALTHCARE SOLUTN
9,671,000$9.7B0.34%
84
INVUITY INC
2,336,889$9.0B0.31%
85
NVTA1EURINVITAE CORP
1,901,788$8.9B0.31%
86
RETAEURREATA PHARMACEUTICALS INC
390,000$8.0B0.28%
87
BIOSCRIP INC
3,124,000$7.7B0.27%
88
RGNXREGENXBIO INC
256,300$7.7B0.27%
89
RCKTROCKET PHARMACEUTICALS INC
400,000$7.5B0.26%
90
NVLSEURALPINE IMMUNE SCIENCES INC
913,100$7.3B0.25%
91
NEOS THERAPEUTICS INC
864,906$7.2B0.25%
92
ARMO BIOSCIENCES INC
188,525$7.1B0.24%
93
BLUEBIRD BIO INC
41,000$7.0B0.24%
94
ALIMERA SCIENCES INC
6,052,935$6.2B0.22%
95
MRTXEURMIRATI THERAPEUTICS INC
197,000$6.0B0.21%
96
STEADYMED LTD
1,418,787$4.6B0.16%
97
BDQMALBIREO PHARMA INC
120,000$3.9B0.14%
98
SIERRA ONCOLOGY INC
1,764,889$3.7B0.13%
99
FOAMIX PHARMACEUTICALS LTD
674,002$3.5B0.12%
100
MNKDMANNKIND CORP
1,482,601$3.4B0.12%
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