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Institutional Investment Manager
PERCEPTIVE ADVISORS LLC
PERCEPTIVE ADVISORS LLC (CIK: 0001224962) incorporated in Delaware, located at 51 Astor Place, 10th Floor, New York, NY. Institutional holdings reported to the SEC.

Institutional Holdings (2015Q2)
Portfolio Summary: 173 holdings with a total value of $1,660,639,000.
#
Name
Shares
Value ($)
%
Options
Notes
51 BIOCRYST PHARMACEUTICALS 470,000 7,017,000 0.42%
52 SUPERNUS PHARMACEUTICALS INC 2,187,000 7,008,000 0.42% PRN
53 INSMED INC 285,812 6,980,000 0.42%
54 VBI Vaccines Inc. 2,610,365 6,813,000 0.41%
55 Aldeyra Therapeutics Inc 869,800 6,749,000 0.41%
56 CELLECTIS S A 181,500 6,549,000 0.39%
57 TOKAI PHARMACEUTICALS INC COM 485,338 6,455,000 0.39%
58 VITAL THERAPIES INC 300,000 6,330,000 0.38% Put
59 LA JOLLA PHARMACEUTICAL CO 252,915 6,199,000 0.37%
60 TRANSENTERIX INC 2,044,032 6,132,000 0.37%
61 IRONWOOD PHARMACEUTICALS INC 493,600 5,953,000 0.36%
62 FIVE PRIME THERAPEUTICS INC 224,129 5,567,000 0.34%
63 ILLUMINA INC 25,000 5,459,000 0.33%
64 PORTOLA PHARMACEUTICALS INC 111,103 5,061,000 0.30%
65 ARDELYX INC 315,955 5,046,000 0.30%
66 Proteon Therapeutics Inc 275,000 4,912,000 0.30%
67 ENDOLOGIX INC 318,000 4,878,000 0.29%
68 TETRAPHASE PHARMACEUTICALS INC COM 100,000 4,744,000 0.29%
69 MINERVA NEUROSCIENCES INC COM 810,537 4,701,000 0.28%
70 APPLIED GENETIC TECHNOL CORP 300,922 4,616,000 0.28%
71 HCA HOLDINGS INC 50,563 4,587,000 0.28%
72 THORATEC LABS CORP 100,000 4,457,000 0.27% Call
73 CIDARA THERAPEUTICS INC 300,000 4,206,000 0.25%
74 NEKTAR THERAPEUTICS COM 335,000 4,191,000 0.25%
75 RAPTOR PHARMACEUTICAL CORP 264,204 4,172,000 0.25%
76 CELYAD SA 75,000 3,902,000 0.23%
77 Axovant Sciences LTD 190,000 3,872,000 0.23%
78 CIGNA CORPORATION 21,970 3,559,000 0.21%
79 CATALYST PHARMACEUTICALS INC 851,200 3,515,000 0.21%
80 RETROPHIN INC 100,000 3,315,000 0.20% Put
81 PROSHARES TR 50,000 3,227,000 0.19% Put
82 NEURODERM LTD 200,000 3,070,000 0.18%
83 WALGREENS BOOTS ALLIANCE INC 35,292 2,980,000 0.18%
84 Evolent Health, Inc. 152,800 2,980,000 0.18%
85 MACROGENICS INC 76,208 2,894,000 0.17%
86 MEDGENICS INC 465,225 2,852,000 0.17%
87 IMMUNOMEDICS INCORPORATED 700,000 2,842,000 0.17% Put
88 CORBUS PHARMACEUTICALS HLDGS 870,000 2,679,000 0.16%
89 DERMIRA INC COM 152,000 2,668,000 0.16%
90 XENON PHARMACEUTICALS INC 225,000 2,594,000 0.16%
91 IMMUNOMEDICS INCORPORATED 600,000 2,436,000 0.15%
92 ABEONA THERAPEUTICS INC 470,000 2,378,000 0.14%
93 INVITAE CORP 299,583 2,306,000 0.14%
94 ISHARES TR 87,000 2,270,000 0.14%
95 POWERSHS DB US DOLLAR INDEX 90,000 2,253,000 0.14%
96 ABEONA THERAPEUTICS INC 1,250,000 2,250,000 0.14%
97 CHAMPIONS ONCOLOGY 4,471,180 2,235,000 0.13%
98 REGULUS THERAPEUTICS INC COM 200,000 2,196,000 0.13% Put
99 VITAE PHARMACEUTICALS INC 150,000 2,160,000 0.13%
100 Sunesis Pharmaceuticals I 700,000 2,107,000 0.13%
Page 2 of 4

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001019056-15-000685, filed 2015.08.14).

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.