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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 (2015Q4)
Portfolio Summary: 155 holdings with a total value of $1,351,627,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 AMICUS THERAPEUTICS INC 15,239,444 147,823,000 10.94%
2 NEUROCRINE BIOSCIE COM USD0.001 2,496,167 141,208,000 10.45%
3 SAREPTA THERAPEUTICS INC 2,240,928 86,455,000 6.40%
4 DYAX CORP COM CVR 1,819,215 68,439,000 5.06%
5 TESARO INC 968,659 50,680,000 3.75%
6 RETROPHIN INC COM 2,579,380 49,756,000 3.68%
7 ALLERGAN PLC 145,000 45,313,000 3.35%
8 GLOBAL BLOOD THERAPEUTICS IN COM 1,186,630 38,363,000 2.84%
9 NEVRO CORP 484,279 32,694,000 2.42%
10 TEVA PHARMACEUTICAL INDS LTD 481,000 31,573,000 2.34%
11 VERSARTIS INC COM 2,299,454 28,490,000 2.11%
12 GW PHARMACEUTICALS PLC 400,000 27,776,000 2.06% Put
13 XENCOR INC COM 1,854,784 27,117,000 2.01%
14 IGNYTA INC COM 1,812,060 24,282,000 1.80%
15 Lion Biotechnologies 3,000,161 23,161,000 1.71%
16 ACELRX PHARMACEUTICALS INC 5,995,760 23,084,000 1.71%
17 SAREPTA THERAPEUTICS INC 500,000 19,290,000 1.43% Call
18 Baxter Intl Inc 485,000 18,503,000 1.37%
19 FIVE PRIME THERAPEUTICS INC 434,129 18,016,000 1.33%
20 APPLIED GENETIC TECHNOL CORP 861,513 17,575,000 1.30%
21 LA JOLLA PHARMACEUTICAL CO 649,515 17,537,000 1.30%
22 DERMIRA INC 502,000 17,374,000 1.29%
23 UNIQURE NV 967,093 15,996,000 1.18%
24 QUOTIENT LTD 893,540 14,297,000 1.06%
25 VERTEX PHARMACEUT 110,000 13,841,000 1.02%
26 ACCELERON PHARMA 276,036 13,460,000 1.00%
27 CYTOMX THERAPEUTICS INC COM 642,047 13,399,000 0.99%
28 REGENXBIO INC COM 779,213 12,934,000 0.96%
29 CIDARA THERAPEUTICS INC 742,858 12,747,000 0.94%
30 PFENEX INC COM 960,877 11,896,000 0.88%
31 EAGLE PHARMACEUTICALS INC COM 133,145 11,806,000 0.87%
32 DBV TECHNOLOGIES 306,715 11,137,000 0.82%
33 BLUEPRINT MEDICINES CORP COM 404,404 10,652,000 0.79%
34 CAPITAL SR LIVING CORP COM 483,700 10,090,000 0.75%
35 AXOVANT SCIENCES LTD 535,000 9,646,000 0.71%
36 DEPOMED INC 500,000 9,065,000 0.67%
37 ACADIA PHARMACEUTICALS 245,240 8,743,000 0.65%
38 BELLICUM PHARMACEUTICALS INC 421,188 8,537,000 0.63%
39 ALDEYRA THERAPEUTICS INC 1,240,458 8,410,000 0.62%
40 AMGEN INC 50,000 8,117,000 0.60%
41 VBI Vaccines Inc. 3,260,356 7,955,000 0.59%
42 ONCOTHYREON INC COM N/C EFF 6/ 3,414,121 7,579,000 0.56%
43 ANI PHARMACEUTICALS INC 7,500,000 7,461,000 0.55% PRN
44 MYOKARDIA INC 502,903 7,372,000 0.55%
45 NEPTUNE TECHNOLOGIES BIORESO 6,700,444 7,169,000 0.53%
46 ALCOBRA LTD 1,028,272 6,458,000 0.48%
47 AFFIMED N V 868,820 6,186,000 0.46%
48 ASSEMBLY BIOSCIENCES INC 795,000 5,970,000 0.44%
49 ABEONA THERAPEUTICS INC 1,762,881 5,923,000 0.44%
50 ARDELYX INC 315,955 5,725,000 0.42%
Page 1 of 4

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001019056-16-001109, filed 2016.02.16).

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.