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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
1 AMICUS THERAPEUTICS INC 14,439,444 204,318,000 12.30%
2 NEUROCRINE BIOSCIE COM USD0.001 3,284,467 156,866,000 9.45%
3 RETROPHIN INC COM 2,820,875 91,650,000 5.52%
4 SAREPTA THERAPEUTICS INC 2,809,528 85,494,000 5.15%
5 TESARO INC 835,359 49,111,000 2.96%
6 DYAX CORP COM CVR 1,786,315 47,337,000 2.85%
7 NEVRO CORP 798,959 42,944,000 2.59%
8 XENCOR INC COM 1,884,784 41,409,000 2.49%
9 SPDR SER TR 150,000 37,836,000 2.28% Put
10 RELYPSA INC 1,139,142 37,694,000 2.27%
11 IGNYTA INC COM 1,967,600 29,691,000 1.79%
12 ACELRX PHARMACEUTICALS INC 6,574,060 27,874,000 1.68%
13 Lion Biotechnologies 2,759,593 25,305,000 1.52%
14 DERMA SCIENCES INC COM PAR .01 348,784 24,997,000 1.51%
15 GILEAD SCIENCES INC 200,000 23,416,000 1.41% Put
16 ANI PHARMACEUTICALS INC COM 327,157 20,300,000 1.22%
17 VERSARTIS INC COM 1,321,400 20,112,000 1.21%
18 CEMPRA INC 572,500 19,671,000 1.18%
19 PFENEX INC COM 1,010,877 19,611,000 1.18%
20 ZS PHARMA INC 361,777 18,953,000 1.14%
21 EAGLE PHARMACEUTICALS INC COM 233,044 18,844,000 1.13%
22 ALLERGAN PLC 59,185 17,960,000 1.08%
23 UNIQURE NV 650,269 17,557,000 1.06%
24 ACADIA PHARMACEUTICALS 410,240 17,181,000 1.03%
25 CHINA BIOLOGIC PRODS INC 147,604 16,998,000 1.02%
26 Esperion Therapeutics Inc 200,000 16,352,000 0.98% Call
27 RADIUS HEALTH 235,530 15,945,000 0.96%
28 CAPITAL SR LIVING CORP COM 640,500 15,692,000 0.94%
29 SAREPTA THERAPEUTICS INC 500,000 15,215,000 0.92% Call
30 ASSEMBLY BIOSCIENCES INC 784,893 15,117,000 0.91%
31 ZIMMER BIOMET HLDGS INC 135,193 14,767,000 0.89%
32 MYLAN N V 215,133 14,599,000 0.88%
33 HERON THERAPEUTICS INC 448,000 13,960,000 0.84%
34 AFFIMED N V 1,023,820 13,791,000 0.83%
35 ONCOTHYREON INC COM N/C EFF 6/ 3,346,897 12,517,000 0.75%
36 BELLICUM PHARMACEUTICALS INC 552,628 11,754,000 0.71%
37 PUMA BIOTECHNOLOGY 100,000 11,675,000 0.70% Call
38 Receptos Inc 60,969 11,587,000 0.70%
39 BLUEPRINT MEDICINES CORP COM 404,404 10,712,000 0.65%
40 ANTHERA PHARMACEUTICALS I 1,202,156 10,363,000 0.62%
41 ALLIQUA BIOMEDICAL INC 1,921,951 10,128,000 0.61%
42 THORATEC LABS CORP 226,000 10,073,000 0.61%
43 SHIRE PLC 40,000 9,660,000 0.58%
44 SANGAMO BIOSCIENCES INCORPORATED 800,000 8,872,000 0.53%
45 ACCELERON PHARMA 276,036 8,734,000 0.53%
46 NEPTUNE TECHNOLOGIES BIORESO 6,700,444 8,643,000 0.52%
47 QUOTIENT LTD 562,436 8,577,000 0.52%
48 ANI PHARMACEUTICALS INC 7,500,000 8,488,000 0.51% PRN
49 Otonomy Inc 367,386 8,446,000 0.51%
50 COHERUS BIOSCIENCES INC COM 258,716 7,477,000 0.45%
Page 1 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.