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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 (2014Q2)
Portfolio Summary: 117 holdings with a total value of $1,019,307,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 SAREPTA THERAPEUTICS INC 2,558,478 76,217,000 7.48%
2 NEUROCRINE BIOSCIE COM USD0.001 4,599,867 68,262,000 6.70%
3 ACELRX PHARMACEUTICALS INC 6,574,060 67,384,000 6.61%
4 VERTEX PHARMACEUT 470,142 44,513,000 4.37%
5 CELGENE CORP 507,488 43,580,000 4.28%
6 TARO PHARMACEUTICAL INDS LTD 301,333 42,260,000 4.15%
7 AMICUS THERAPEUTICS INC 12,339,444 41,214,000 4.04%
8 Questcor 400,000 36,996,000 3.63%
9 INSMED INC COM PAR .01 1,800,000 35,964,000 3.53%
10 DYAX CORP COM CVR 2,710,598 26,022,000 2.55%
11 ZIMMER BIOMET HLDGS INC 242,500 25,186,000 2.47%
12 SHIRE PLC 90,000 21,194,000 2.08%
13 Walgreens 282,000 20,905,000 2.05%
14 XENCOR INC COM 1,740,621 20,226,000 1.98%
15 HERON THERAPEUTICS INC 1,634,555 20,138,000 1.98%
16 TESARO INC 636,956 19,816,000 1.94%
17 Lion Biotechnologies 3,011,549 19,273,000 1.89%
18 NEPTUNE TECHNOLOGIES BIORESO 6,700,444 18,493,000 1.81%
19 PTC THERAPEUTICS INC 671,736 17,559,000 1.72%
20 OPHTHOTECH CORP COM 371,469 15,717,000 1.54%
21 EXACT SCIENCES CORP 901,250 15,348,000 1.51%
22 RETROPHIN INC COM 1,274,292 14,960,000 1.47%
23 ACADIA PHARMACEUTICALS INC COM 653,000 14,751,000 1.45%
24 Mylan Inc 282,500 14,566,000 1.43%
25 RELYPSA INC 596,605 14,509,000 1.42%
26 SANGAMO BIOSCIENCES INCORPORATED 800,000 12,216,000 1.20%
27 FLAMEL TECHNOLOGIES SA SPONSORED ADR 800,000 12,000,000 1.18%
28 HCA HOLDINGS INC 197,806 11,152,000 1.09%
29 PROTHENA CORP PLC 483,162 10,895,000 1.07%
30 AETNA INC NEW 131,308 10,646,000 1.04%
31 ACCELERON PHARMA 300,000 10,191,000 1.00%
32 MACROGENICS INC 431,803 9,383,000 0.92%
33 Anacor Pharmaceuticals Inc 528,776 9,375,000 0.92%
34 INTERMUNE INC 210,000 9,272,000 0.91%
35 VERSARTIS INC COM 315,796 8,855,000 0.87%
36 Receptos Inc 205,000 8,733,000 0.86%
37 Allergan plc 50,000 8,461,000 0.83%
38 BioDelivery Sciences International Inc 700,000 8,449,000 0.83%
39 MEDTRONIC INC 130,000 8,289,000 0.81%
40 TRANSENTERIX INC 1,300,000 6,552,000 0.64%
41 Arrowhead Pharma Inc 422,406 6,045,000 0.59%
42 REGADO BIOSCIENCES INC 860,000 5,839,000 0.57%
43 SPECTRANETICS CORP 243,354 5,568,000 0.55%
44 INTERCEPT PHARMACEUTICAL 20,000 4,733,000 0.46% Put
45 DERMA SCIENCES INC COM PAR .01 406,437 4,698,000 0.46%
46 CENTENE CORP DEL 60,000 4,537,000 0.45%
47 TREVENA INC 770,000 4,351,000 0.43%
48 AERIE PHARMACEUTICALS INC 1,121,951 4,196,000 0.41%
49 CATALYST PHARMACEUTICALS INC 1,500,000 3,795,000 0.37%
50 Walgreens 50,000 3,707,000 0.36% Call
Page 1 of 3

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001019056-14-001053, filed 2014.08.14).

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.