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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 SEATTLE GENETICS INC 20,739,426 944,887 12.01%
2 SYNAGEVA BIOPHARMA CORP 10,648,182 883,480 11.23%
3 PHARMACYCLICS INC 8,737,888 875,711 11.13%
4 INCYTE CORP 14,835,559 793,999 10.09%
5 ACADIA PHARMACEUTICALS INC COM 20,481,442 498,313 6.33%
6 GENOMIC HEALTH INC COM 13,654,150 359,650 4.57%
7 INTERMUNE INC 4,324,843 144,752 1.84%
8 BIOMARIN PHARMACEUTICAL INC 1,883,230 128,455 1.63%
9 XOMA CORP DEL 23,057,572 120,130 1.53%
10 INTERCEPT PHARMACEUTICALS INCORPORATED 256,375 84,550 1.07%
11 HALOZYME THERAPEUTICS INC 5,698,139 72,366 0.92%
12 VANDA PHARMACEUTICALS INC COM 4,445,696 72,243 0.92%
13 BIOCRYST PHARMACEUTICALS 5,867,031 62,073 0.79%
14 Anacor Pharmaceuticals Inc 3,095,318 61,937 0.79%
15 REPROS THERAPEUTICS INC 2,778,654 49,293 0.63%
16 Questcor 717,745 46,603 0.59%
17 MIRATI THERAPEUTICS INC COM 2,380,074 45,388 0.58%
18 DERMA SCIENCES ORD 3,537,137 44,851 0.57%
19 CERUS CORP 8,455,306 40,585 0.52%
20 GILEAD SCIENCES INC 556,108 39,406 0.50%
21 ACORDA THERAPEUTICS INC 1,000,000 37,910 0.48%
22 CHELSEA THERAPEUTICS INTL LT 6,760,394 37,317 0.47%
23 CLOVIS ONCOLOGY INC 529,990 36,712 0.47%
24 HERON THERAPEUTICS INC COM 2,167,784 30,153 0.38%
25 AEGERION PHARMACEUTICALS INC 513,922 23,702 0.30%
26 DYAX CORP COM CVR 2,531,766 22,735 0.29%
27 AVANIR PHARMACEUTICALS INC CL 5,790,139 21,250 0.27%
28 XENOPORT INC 4,034,112 20,856 0.27%
29 Progenics Pharmaceuticals Inc 4,449,797 18,200 0.23%
30 AQUINOX PHARMACEUTICALS INC 1,211,851 15,427 0.20%
31 TG THERAPEUTICS INC COM 2,160,965 14,911 0.19%
32 KYTHERA BIOPHARMACEUTICALS I 311,255 12,375 0.16%
33 Arrowhead Pharma Inc 732,062 12,020 0.15%
34 INSMED INC 554,050 10,549 0.13%
35 Tekmira Pharmaceuticals Corp. 484,156 10,405 0.13%
36 SANGAMO THERAPEUTICS INCORPORATED 522,764 9,452 0.12%
37 SYNERGY PHARMACEUTICALS DEL 1,758,271 9,336 0.12%
38 OMEROS CORP 753,804 9,098 0.12%
39 PROTHENA CORP PLC 230,142 8,817 0.11%
40 THRESHOLD PHARMACEUTICAL INC 1,826,358 8,693 0.11%
41 QLT INC 1,535,863 8,539 0.11%
42 DISCOVERY LABORATORIES INC N 3,652,117 7,852 0.10%
43 AGIOS PHARMACEUTICALS INC 199,893 7,826 0.10%
44 GALECTIN THERAPEUTICS INC COM 500,000 7,655 0.10%
45 INFINITY PHARMACEUTICALS INC 624,050 7,420 0.09%
46 NEUROCRINE BIOSCIE COM USD0.001 447,874 7,211 0.09%
47 STEMLINE THERAPEUTICS INC 338,671 6,895 0.09%
48 AMBIT BIOSCIENCES CORP 747,954 6,821 0.09%
49 BIOTA PHARMACEUTIALS INC COM 1,106,910 6,763 0.09%
50 ARRAY BIOPHARMA INC 1,433,797 6,739 0.09%
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