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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 OSIRIS THERAPEUTICS INC 361,530 4,747 0.06%
3 ACADIA PHARMACEUTICALS INC 20,481,442 498,313 6.33%
4 ACCELERON PHARMA INC 28,765 992 0.01%
5 ACHAOGEN INCORPORATED 100,000 1,546 0.02%
6 ACHILLION PHARMACEUTICALS IN 438,337 1,442 0.02%
7 ACORDA THERAPEUTICS INC 1,000,000 37,910 0.48%
8 AEGERION PHARMACEUTICALS INC 513,922 23,702 0.30%
9 AERIE PHARMACEUTICALS INC 299,356 6,343 0.08%
10 AGIOS PHARMACEUTICALS INC COM 199,893 7,826 0.10%
11 ALNYLAM PHARMACEUTICALS INC 11,600 779 0.01%
12 AMBIT BIOSCIENCES CORP 747,954 6,821 0.09%
13 AMICUS THERAPEUTICS INC COM 481,697 997 0.01%
14 AQUINOX PHARMACEUTICALS INC 1,211,851 15,427 0.20%
15 ARRAY BIOPHARMA INC 1,433,797 6,739 0.09%
16 AUXILIUM PHARMACEUTICALS INC 58,544 1,591 0.02%
17 AVANIR PHARMACEUTICALS INC CL 5,790,139 21,250 0.27%
18 Anacor Pharmaceuticals Inc 3,095,318 61,937 0.79%
19 Arrowhead Pharma Inc 732,062 12,020 0.15%
20 Auxilium Pharmaceuticals Inc 97,990,000 128,796 1.64% PRN
21 BIOCRYST PHARMACEUTICALS 5,867,031 62,073 0.79%
22 BIODELIVERY SCIENCES INTL IN 421,005 3,553 0.05%
23 BIOMARIN PHARMACEUTICAL INC 1,883,230 128,455 1.63%
24 BIOMARIN PHARMACEUTICAL INC SR SB CV1.875 17 22,898,000 77,127 0.98% PRN
25 BIOMARIN PHARMACEUTICAL INC 0.75 10/15/2018 12,500,000 13,699 0.17% PRN
26 BIOTA PHARMACEUTIALS INC COM 1,106,910 6,763 0.09%
27 BLUEBIRD BIO INC 198,260 4,508 0.06%
28 CATALYST PHARMACEUTICALS INC 569,853 1,288 0.02%
29 CELSUS THERAPEUTICS PLC 673,887 4,374 0.06%
30 CERUS CORPORATION 8,455,306 40,585 0.52%
31 CHELSEA THERAPEUTICS INTL LT 6,760,394 37,317 0.47%
32 CHEMOCENTRYX INC 50,000 332 0.00%
33 CLOVIS ONCOLOGY INC 529,990 36,712 0.47%
34 CYCLACEL PHARMACEUTICALS INC 13,253 113 0.00%
35 CYTRX CORP 1,350,000 4,712 0.06%
36 DERMA SCIENCES ORD 3,537,137 44,851 0.57%
37 DISCOVERY LABORATORIES INC N 3,652,117 7,852 0.10%
38 ENANTA PHARMACEUTICALS INC 80,957 3,237 0.04%
39 EPIZYME INC COM 214,012 4,873 0.06%
40 FIVE PRIME THERAPEUTICS INC 19,823 390 0.00%
41 FURIEX PHARMACEUTICALS INC 40,309 3,507 0.04%
42 GALECTIN THERAPEUTICS INC COM 500,000 7,655 0.10%
43 GENOMIC HEALTH INC COM 13,654,150 359,650 4.57%
44 GERON CORP 402,629 837 0.01%
45 GILEAD SCIENCES 21,500,000 66,903 0.85% PRN
46 GILEAD SCIENCES INC 556,108 39,406 0.50%
47 HALOZYME THERAPEUTICS INC 5,698,139 72,366 0.92%
48 HERON THERAPEUTICS INC COM 2,167,784 30,153 0.38%
49 IDERA PHARMACEUTICALS INCORPORATED COM NEW 1,613,076 6,581 0.08%
50 IGNYTA INC COM 571,000 4,739 0.06%
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