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Institutional Investment Manager
BAKER BROS. ADVISORS LP
BAKER BROS. ADVISORS LP (CIK: 0001263508) incorporated in Delaware, located at 860 Washington Street, New York, NY. Institutional holdings reported to the SEC.

Institutional Holdings (2014Q1)
Original 13F HR (0001144204-14-031196) filed in 2014.05.15
#
Name
Shares
Value ($)
%
Options
Notes
1 DYAX CORP COM CVR 2,531,766 22,735 0.29%
2 ACADIA PHARMACEUTICALS INC COM 20,481,442 498,313 6.33%
3 ACCELERON PHARMA INC 28,765 992 0.01%
4 ACHAOGEN INC COM 100,000 1,546 0.02%
5 ACHILLION PHARMACEUTICALS IN 438,337 1,442 0.02%
6 ACORDA THERAPEUTICS INC 1,000,000 37,910 0.48%
7 AEGERION PHARMACEUTICALS INC 513,922 23,702 0.30%
8 AERIE PHARMACEUTICALS INC COM 299,356 6,343 0.08%
9 AGIOS PHARMACEUTICALS INC 199,893 7,826 0.10%
10 ALNYLAM PHARMACEUTICALS INC 11,600 779 0.01%
11 AMBIT BIOSCIENCES CORP 747,954 6,821 0.09%
12 AMICUS THERAPEUTICS INC COM 481,697 997 0.01%
13 AQUINOX PHARMACEUTICALS INC 1,211,851 15,427 0.20%
14 ARRAY BIOPHARMA INC 1,433,797 6,739 0.09%
15 AUXILIUM PHARMACEUTICALS INC 58,544 1,591 0.02%
16 AVANIR PHARMACEUTICALS INC CL 5,790,139 21,250 0.27%
17 Anacor Pharmaceuticals Inc 3,095,318 61,937 0.79%
18 Arrowhead Pharma Inc 732,062 12,020 0.15%
19 Auxilium Pharmaceuticals Inc 97,990,000 128,796 1.64% PRN
20 BIOCRYST PHARMACEUTICALS 5,867,031 62,073 0.79%
21 BIODELIVERY SCIENCES INTL IN 421,005 3,553 0.05%
22 BIOMARIN PHARMACEUTICAL INC 1,883,230 128,455 1.63%
23 BIOMARIN PHARMACEUTICAL INC SR SB CV1.875 17 22,898,000 77,127 0.98% PRN
24 BIOMARIN PHARMACEUTICAL INC 0.75 10/15/2018 12,500,000 13,699 0.17% PRN
25 BIOTA PHARMACEUTIALS INC COM 1,106,910 6,763 0.09%
26 BLUEBIRD BIO INC COM 198,260 4,508 0.06%
27 CATALYST PHARMACEUTICALS INC 569,853 1,288 0.02%
28 CELSUS THERAPEUTICS PLC 673,887 4,374 0.06%
29 CERUS CORP 8,455,306 40,585 0.52%
30 CHELSEA THERAPEUTICS INTL LT 6,760,394 37,317 0.47%
31 CHEMOCENTRYX INC 50,000 332 0.00%
32 CLOVIS ONCOLOGY INC 529,990 36,712 0.47%
33 CYCLACEL PHARMACEUTICALS INC 13,253 113 0.00%
34 CYTRX CORP 1,350,000 4,712 0.06%
35 DERMA SCIENCES ORD 3,537,137 44,851 0.57%
36 DISCOVERY LABORATORIES INC N 3,652,117 7,852 0.10%
37 ENANTA PHARMACEUTICALS INC 80,957 3,237 0.04%
38 EPIZYME INC COM 214,012 4,873 0.06%
39 FIVE PRIME THERAPEUTICS INC 19,823 390 0.00%
40 FURIEX PHARMACEUTICALS INC 40,309 3,507 0.04%
41 GALECTIN THERAPEUTICS INC COM 500,000 7,655 0.10%
42 GENOMIC HEALTH INC COM 13,654,150 359,650 4.57%
43 GERON CORP 402,629 837 0.01%
44 GILEAD SCIENCES 21,500,000 66,903 0.85% PRN
45 GILEAD SCIENCES INC 556,108 39,406 0.50%
46 HALOZYME THERAPEUTICS INC 5,698,139 72,366 0.92%
47 HERON THERAPEUTICS INC COM 2,167,784 30,153 0.38%
48 IDERA PHARMACEUTICALS INCORPORATED COM NEW 1,613,076 6,581 0.08%
49 IGNYTA INC COM 571,000 4,739 0.06%
50 INCYTE CORP 14,835,559 793,999 10.09%
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