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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 (2014Q3)
Portfolio Summary: 131 holdings with a total value of $2,743,289,000.
#
Name
Shares
Value ($)
%
Options
Notes
51 ANI PHARMACEUTICALS INC 607,355 17,176,000 0.63%
52 KERYX BIOPHARMACEUTICALS INCORPORATED 1,233,484 16,960,000 0.62%
53 ORTHOFIX INTL N V 533,812 16,527,000 0.60%
54 AMPHASTAR PHARMACEUTICALS IN COM 1,415,075 16,486,000 0.60%
55 CIGNA CORPORATION 166,929 15,139,000 0.55%
56 IMPRIVATA INC 970,951 15,069,000 0.55%
57 ANTARES PHARMA INC 7,823,618 14,317,000 0.52%
58 SAGE THERAPEUTICS INC 450,667 14,196,000 0.52%
59 PORTOLA PHARMACEUTICALS INC 557,477 14,093,000 0.51%
60 AETNA INC NEW 169,194 13,705,000 0.50%
61 Medtronic Inc 204,800 12,687,000 0.46%
62 TRUPANION INC 1,455,377 12,371,000 0.45%
63 INTERCEPT PHARMACEUTICALS INCORPORATED 50,000 11,835,000 0.43% Call
64 INOGEN INC COM 552,337 11,384,000 0.41%
65 CHIMERIX INC 406,100 11,216,000 0.41%
66 WRIGHT MEDICAL GROUP N.V. 469,007 11,209,000 0.41%
67 NANOSTRING TECHNOLOGIES INC 1,003,974 10,983,000 0.40%
68 ABIOMED INC 435,934 10,824,000 0.39%
69 IMMUNOMEDICS INCORPORATED 2,805,972 10,438,000 0.38%
70 ALIMERA SCIENCES INC 1,851,890 10,037,000 0.37%
71 KERYX BIOPHARMACEUTICALS INCORPORATED 700,000 9,625,000 0.35% Put
72 ANGIODYNAMICS INC 682,740 9,367,000 0.34%
73 ProQR Therapeutics NV 530,000 9,111,000 0.33%
74 TETRAPHASE PHARMACEUTICALS INC COM 450,191 8,981,000 0.33%
75 WAGEWORKS INC COM 190,770 8,686,000 0.32%
76 THORATEC LABS CORP 323,136 8,637,000 0.31%
77 STREAMLINE HEALTH SOLUTIONS COM 1,822,759 8,439,000 0.31%
78 ACCURAY INC 5,000,000 7,477,000 0.27% PRN
79 MEI PHARMA INC 1,011,793 6,981,000 0.25%
80 ALPHATEC HOLDINGS INC 3,982,738 6,771,000 0.25%
81 DISCOVERY LABORATORIES INC N 3,659,700 6,734,000 0.25%
82 CAS MED SYS INC 3,200,000 6,208,000 0.23%
83 POZEN INC 816,254 5,991,000 0.22%
84 PFENEX INC COM 813,478 5,987,000 0.22%
85 BIOSPECIFICS TECHNOLOGIES CO 168,883 5,962,000 0.22%
86 LIVANOVA PLC 110,000 5,628,000 0.21%
87 BioTelemetry Inc 828,400 5,559,000 0.20%
88 LUMENIS LTD 597,866 5,327,000 0.19%
89 HCA HOLDINGS INC 71,303 5,028,000 0.18%
90 GENOCEA BIOSCIENCES INC 554,257 5,016,000 0.18%
91 TENET HEALTHCARE CORP 82,960 4,927,000 0.18%
92 OSIRIS THERAPEUTICS INC NEW COM 388,039 4,885,000 0.18%
93 KALOBIOS PHARMACEUTICALS INC 3,074,972 4,766,000 0.17%
94 RIGEL PHARMACEUTICAL INC 2,397,855 4,652,000 0.17%
95 DERMA SCIENCES ORD 554,057 4,615,000 0.17%
96 ONCOTHYREON INC COM N/C EFF 6/ 2,252,631 4,325,000 0.16%
97 MERGE HEALTHCARE INC 1,937,696 4,263,000 0.16%
98 SCYNEXIS INC 563,290 4,163,000 0.15%
99 CAREDX INC 575,000 4,025,000 0.15%
100 ADEPTUS HEALTH INC 161,123 4,012,000 0.15%
Page 2 of 3

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001140361-14-042282, filed 2014.11.14).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.