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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
1 AAC HLDGS INC 2,294,936 45,417 1.93%
2 ABIOMED INC 49,797 4,721 0.20%
3 ACCELERON PHARMA INC 353,491 9,329 0.40%
4 ACORDA THERAPEUTICS INC 1,029,410 27,228 1.16%
5 ACURA PHARMACEUTICALS INC 1,025,641 2,903 0.12%
6 ADEPTUS HEALTH INC CL A 956,533 53,126 2.26%
7 AERIE PHARMACEUTICALS INC 2,632,482 32,011 1.36%
8 AETNA INC NEW 591,465 66,451 2.83%
9 AKARI THERAPEUTICS PLC 1,150,700 16,110 0.69%
10 ALCOBRA LTD 1,069,914 4,055 0.17%
11 ALDEYRA THERAPEUTICS INC 471,259 1,975 0.08%
12 ALIMERA SCIENCES INC 5,878,015 10,287 0.44%
13 ALLERGAN PLC 3,500 938 0.04%
14 ALLIQUA BIOMEDICAL INC 667,246 547 0.02%
15 ALPHATEC HOLDINGS INC 4,982,738 1,196 0.05%
16 ANTHEM INC 102,000 14,177 0.60%
17 ARALEZ PHARMACEUTICALS INC 1,644,583 5,838 0.25%
18 ARDELYX INC COM 275,000 2,137 0.09%
19 ARRAY BIOPHARMA INC 9,529,361 28,112 1.20%
20 ARRAY BIOPHARMA INC 3 06/01/2020 45,000,000 35,876 1.53% PRN
21 AVEXIS INC COM 2,236,701 60,928 2.59%
22 AXOGEN INC 3,381,439 18,125 0.77%
23 Agile Therapeutics, Inc. 250,000 1,553 0.07%
24 CAREDX INC 229,000 1,136 0.05%
25 CAS MED SYS INC 3,200,000 4,544 0.19%
26 CEPHEID 7,750,000 6,917 0.29% PRN
27 CIDARA THERAPEUTICS INC 68,779 873 0.04%
28 CORSICANTO LTD 1,000,000 821 0.03% PRN
29 CYTOMX THERAPEUTICS INC COM 943,433 12,170 0.52%
30 Catabasis Pharmaceuticals Inc 643,580 3,244 0.14%
31 DAVITA INC 822,000 60,318 2.57%
32 DBV TECHNOLOGIES S A 817,806 26,620 1.13%
33 EDITAS MEDICINE INC 1,709,400 59,043 2.51%
34 EHEALTH INC COM 3,264,588 30,654 1.31%
35 ENDOCHOICE HLDGS INC 1,823,309 9,499 0.40%
36 ENDOLOGIX INC 569,895 4,764 0.20%
37 ENDOLOGIX INC 40,000,000 38,632 1.64% PRN
38 ENDOLOGIX INC 40,941,000 29,871 1.27% PRN
39 ESSA Pharma 2,587,215 8,408 0.36%
40 Egalet Corp 597,123 4,096 0.17%
41 FIVE PRIME THERAPEUTICS INC 680,000 27,628 1.18%
42 FLAMEL TECHNOLOGIES SA SPONSORED ADR 4,072,809 44,964 1.91%
43 FLUIDIGM CORP DEL 27,715,000 15,353 0.65% PRN
44 Foamix Pharmaceuticals Ltd. 948,934 6,187 0.26%
45 GALAPAGOS NV 327,626 13,701 0.58%
46 GENOCEA BIOSCIENCES INC 787,257 6,093 0.26%
47 GLAXOSMITHKLINE PLC 1,675,385 67,937 2.89%
48 GLOBAL BLOOD THERAPEUTICS INCORPORATED 1,193,811 18,934 0.81%
49 GW PHARMACEUTICALS PLC 674,373 48,656 2.07%
50 HEALTHWAYS INC 76,925,000 70,595 3.01% PRN
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