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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 (2014Q1)
Original 13F HR (0001140361-14-021676) filed in 2014.05.15
#
Name
Shares
Value ($)
%
Options
Notes
1 NOVADAQ TECHNOLOGIES INC 10,000 223 0.01%
2 ACHILLION PHARMACEUTICALS IN 92,804 305 0.01%
3 SYNERON MEDICAL LTD 34,518 430 0.02%
4 AQUINOX PHARMACEUTICALS INC 62,387 794 0.03%
5 MEDIVATION INC 12,500 805 0.03%
6 National Australia Bank ADR 17,500 855 0.03%
7 HOLOGIC INC 42,500 914 0.04%
8 FURIEX PHARMACEUTICALS INC 13,340 1,161 0.05%
9 NEUROCRINE BIOSCIE COM USD0.001 77,994 1,256 0.05%
10 AGILENT TECHNOLOGIES INC 25,000 1,398 0.06%
11 EXELIXIS INC 400,000 1,416 0.06%
12 REGENERON PHARMACEUTICALS 4,799 1,441 0.06%
13 EXELIXIS INC 500,000 1,770 0.07% Call
14 MERGE HEALTHCARE INC 959,580 2,341 0.10%
15 THERAPEUTICSMD INC 376,049 2,373 0.10%
16 PALATIN TECHNOLOGIES INC COM 2,000,000 2,460 0.10%
17 TONIX PHARMACEUTICALS HOLDING 244,524 2,545 0.10%
18 ILLUMINA INC 17,697 2,631 0.11%
19 OCERA THERAPEUTICS INC 261,119 2,755 0.11%
20 TARGACEPT INC 617,000 2,931 0.12%
21 Sunesis Pharmaceuticals I 455,741 3,012 0.12%
22 OXYGEN BIOTHERAPEUTICS INC 550,000 3,053 0.12%
23 INTRA-CELLULAR THERAPIES INC 171,437 3,117 0.13%
24 Auxilium Pharmaceuticals Inc 2,500,000 3,278 0.13% PRN
25 BIOGEN INC 11,750 3,594 0.15%
26 EAGLE PHARMACEUTICALS INC COM 284,653 3,629 0.15%
27 REVANCE THERAPEUTICS INC COM 116,689 3,676 0.15%
28 DERMA SCIENCES ORD 300,000 3,804 0.16%
29 RIGEL PHARMACEUTICAL INC 1,027,443 3,986 0.16%
30 MANNKIND CORP. 1,000,000 4,020 0.16% Put
31 NANOSPHERE INC 2,000,000 4,300 0.18%
32 LIPOSCIENCE INC 1,382,350 4,410 0.18%
33 CANCER GENETICS 318,012 4,799 0.20%
34 XOMA CORP DEL 1,000,000 5,210 0.21% Call
35 UNIQURE NV 350,000 5,453 0.22%
36 VERTEX PHARMACEUTICALS INC 78,500 5,552 0.23%
37 ANTHERA PHARMACEUTICALS I 1,691,857 5,668 0.23%
38 STREAMLINE HEALTH SOLUTIONS COM 1,140,100 5,735 0.23%
39 INOGEN INC COM 357,269 5,899 0.24%
40 ALPHATEC HOLDINGS INC 3,982,738 5,974 0.24%
41 BAXTER INTL INC 85,000 6,254 0.26%
42 ALERE INC 5,750,000 6,278 0.26% PRN
43 AMEDISYS INC COM 439,000 6,537 0.27%
44 AUXILIUM PHARMACEUTICALS INC 250,000 6,795 0.28% Put
45 CAS MED SYS INC 3,200,000 6,944 0.28%
46 SEQUENOM INC 8,377,000 7,466 0.30% PRN
47 KALOBIOS PHARMACEUTICALS INC 2,786,783 7,552 0.31%
48 Arena Pharmaceuticals, Inc 1,216,579 7,664 0.31%
49 CENTENE CORP DEL 124,795 7,768 0.32%
50 DISCOVERY LABORATORIES INC N 3,659,700 7,868 0.32%
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