DEERFIELD MANAGEMENT COMPANY, L.P. Q3 2017 Filing

Filed November 13, 2017

Portfolio Value

$2.2T

Holdings

90

Report Date

Q3 2017

Filing Type

13F-HR

All Holdings (90 positions)

#StockSharesValue% PortfolioType
1
AVEXIS INC
1,547,386$149.7B6.74%
2
MCKMCKESSON CORP
772,200$118.6B5.34%Call
3
MYLAN N V
3,153,611$98.9B4.46%
4
HORIZON PHARMA PLC
6,917,070$87.7B3.95%
5
GKOSGLAUKOS CORP
2,527,032$83.4B3.76%
6
MALLINCKRODT PUB LTD CO
1,860,137$69.5B3.13%
7
DC4DEXCOM INC
1,419,911$69.5B3.13%
8
HORIZON PHARMA INVT LTD
74,100,000$66.9B3.01%
9
MYOKARDIA INC
1,365,039$58.5B2.63%
10
ISIS PHARMACEUTICALS INC DEL
45,700,000$48.5B2.18%
11
KEMPHARM INC
75,000,000$45.7B2.06%
12
NXSTAGE MEDICAL INC
1,579,285$43.6B1.96%
13
AUDENTES THERAPEUTICS INC
1,525,410$42.7B1.92%
14
EDITEDITAS MEDICINE INC
1,709,400$41.0B1.85%
15
ACRSACLARIS THERAPEUTICS INC
1,577,927$40.7B1.83%
16
INTERCEPT PHARMACEUTICALS IN
51,000,000$39.7B1.79%
17
AVDLAVADEL PHARMACEUTICALS PLC
3,655,494$38.4B1.73%
18
TRIB 4 04/01/45TRINITY BIOTECH INVT LTD
48,000,000$38.2B1.72%
19
INTERSECT ENT INC
1,210,000$37.7B1.70%
20
GW PHARMACEUTICALS PLC
362,724$36.8B1.66%
21
ENDOLOGIX INC
40,500,000$35.0B1.58%
22
NEVRO CORP
27,600,000$32.8B1.48%
23
ASNDASCENDIS PHARMA A S
850,000$30.8B1.39%
24
AERIEURAERIE PHARMACEUTICALS INC
632,686$30.7B1.39%
25
ANABANAPTYSBIO INC
824,338$28.8B1.30%
26
NTRANATERA INC
2,181,542$28.1B1.27%
27
DBV TECHNOLOGIES S A
655,897$27.8B1.25%
28
PODDINSULET CORP
497,000$27.4B1.23%
29
ARNAEURARENA PHARMACEUTICALS INC
1,072,329$27.3B1.23%
30
LN5LANNET INC
1,453,259$26.8B1.21%
31
BCRXBIOCRYST PHARMACEUTICALS
4,975,451$26.1B1.17%
32
K2M GROUP HLDGS INC
20,000,000$24.5B1.10%
33
XLRNACCELERON PHARMA INC
615,000$23.0B1.03%
34
SEMSELECT MED HLDGS CORP
1,194,609$22.9B1.03%
35
PDCOEURPATTERSON COMPANIES INC
566,000$21.9B0.99%
36
LAB 2.75 02/01/34FLUIDIGM CORP DEL
27,715,000$20.3B0.91%
37
SYROS PHARMACEUTICALS INC
1,268,945$18.7B0.84%
38
MOHMOLINA HEALTHCARE INC
258,000$17.7B0.80%
39
SELBUSDSELECTA BIOSCIENCES INC
951,629$17.4B0.78%
40
AAC HLDGS INC
1,733,276$17.2B0.78%
41
SCTLRECRO PHARMA INC
1,901,685$17.1B0.77%
42
SYNLOGIC INC
850,143$16.2B0.73%
43
PORTOLA PHARMACEUTICALS INC
298,545$16.1B0.73%
44
EHTHEHEALTH INC
672,994$16.1B0.72%
45
OXFORD IMMUNOTEC GLOBAL PLC
945,710$15.9B0.72%
46
AMAG PHARMACEUTICALS INC
16,250,000$15.7B0.71%
47
LOXO ONCOLOGY INC
169,000$15.6B0.70%
48
ARDXARDELYX INC
2,746,480$15.4B0.69%
49
ADVANCED ACCELERATOR APPLIC
218,000$14.7B0.66%
50
NEOS THERAPEUTICS INC
1,568,921$14.4B0.65%
51
2L9BLUEPRINT MEDICINES CORP
203,000$14.1B0.64%
52
AGIOAGIOS PHARMACEUTICALS INC
208,000$13.9B0.63%
53
CTMXCYTOMX THERAPEUTICS INC
756,822$13.8B0.62%
54
AEGERION PHARMACEUTICALS INC
16,600,000$13.4B0.60%
55
EPIZYME INC
700,526$13.3B0.60%
56
GLPGGALAPAGOS NV
130,000$13.2B0.60%
57
WVEWAVE LIFE SCIENCES LTD
580,000$12.6B0.57%
58
XNCRXENCOR INC
522,000$12.0B0.54%
59
ARGXARGENX SE
509,022$11.5B0.52%
60
NVLSEURALPINE IMMUNE SCIENCES INC
933,100$10.8B0.49%
61
INVUITY INC
1,177,229$10.5B0.47%
62
ALLSCRIPTS HEALTHCARE SOLUTN
9,671,000$10.3B0.46%
63
CNCCENTENE CORP DEL
102,000$9.9B0.44%
64
GBYSANGAMO THERAPEUTICS INC
653,000$9.8B0.44%
65
NVTA1EURINVITAE CORP
900,000$8.4B0.38%
66
ALIMERA SCIENCES INC
6,052,935$8.2B0.37%
67
IMMUNOMEDICS INC
582,000$8.1B0.37%
68
MARINUS PHARMACEUTICALS INC
1,355,000$8.0B0.36%
69
CLEMENTIA PHARMACEUTICALS IN
462,387$7.8B0.35%
70
NUCANA PLC
424,950$7.8B0.35%
71
AXOVANT SCIENCES LTD
1,052,000$7.2B0.33%
72
AXGNAXOGEN INC
344,428$6.7B0.30%
73
MYOVANT SCIENCES LTD
400,685$6.2B0.28%
74
DCPHEURDECIPHERA PHARMACEUTICALS IN
325,000$6.2B0.28%
75
BIOHAVEN PHARMACTL HLDG CO L
165,000$6.2B0.28%
76
RETAEURREATA PHARMACEUTICALS INC
190,000$5.9B0.27%
77
AGILE THERAPEUTICS INC
1,221,775$5.4B0.25%
78
STEADYMED LTD
1,418,787$4.8B0.21%
79
FOAMIX PHARMACEUTICALS LTD
817,435$4.5B0.20%
80
SIERRA ONCOLOGY INC
2,800,000$4.3B0.20%
81
SG7SAGE THERAPEUTICS INC
68,000$4.2B0.19%
82
ARALEZ PHARMACEUTICALS INC
1,644,583$3.8B0.17%
83
OBALON THERAPEUTICS INC
351,284$3.3B0.15%
84
BIOSCRIP INC
1,107,166$3.0B0.14%
85
AKARI THERAPEUTICS PLC
433,551$2.7B0.12%
86
PROTEON THERAPEUTICS INC
1,224,899$2.5B0.11%
87
VYGRVOYAGER THERAPEUTICS INC
117,647$2.4B0.11%
88
ITCIEURINTRA CELLULAR THERAPIES INC
118,116$1.9B0.08%
89
MDXGMIMEDX GROUP INC
150,000$1.8B0.08%
90
RA PHARMACEUTICALS INC
102,150$1.5B0.07%