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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 (2015Q3)
Original 13F HR (0001144204-15-065993) filed in 2015.11.16
#
Name
Shares
Value ($)
%
Options
Notes
1 DYAX CORP COM CVR 7,561,480 144,349 1.33%
2 ABBVIE INC 14,373,538 782,064 7.23%
3 ACADIA PHARMACEUTICALS INC COM 20,481,442 677,321 6.26%
4 ACCELERON PHARMA INC 28,765 716 0.01%
5 ACHAOGEN INC COM 100,000 576 0.01%
6 ACHILLION PHARMACEUTICALS IN 2,000,000 13,820 0.13%
7 ACORDA THERAPEUTICS INC 59,583,000 54,123 0.50% PRN
8 ACORDA THERAPEUTICS INC 1,096,876 29,078 0.27%
9 ADAPTIMMUNE THERAPEUTICS PLC 100,000 1,197 0.01%
10 ADR - Nabriva Therapeutics AG- Usd 350,000 3,325 0.03%
11 AEGERION PHARMACEUTICALS INC 26,517,000 19,873 0.18% PRN
12 AERIE PHARMACEUTICALS INC COM 299,356 5,311 0.05%
13 AFFIMED N V COM 400,000 2,468 0.02%
14 AGIOS PHARMACEUTICALS INC 100,000 7,059 0.07%
15 AIMMUNE THERAPEUTICS INC COM 250,000 6,330 0.06%
16 AKARI THERAPEUTICS PLC 395,882 9,499 0.09%
17 ALCOBRA LTD 1,639,871 9,905 0.09%
18 ALDER BIOPHARMACEUTICALS INC 513,439 16,820 0.16%
19 ALEXION PHARMACEUTIC 6,542,599 1,023,197 9.45%
20 ALNYLAM PHARMACEUTICALS INC 11,340 911 0.01%
21 AMARIN CORP PLC 2,205,710 4,257 0.04%
22 APTOSE BIOSCIENCES INC 33,397 144 0.00%
23 AQUINOX PHARMACEUTICALS INC 6,747,332 94,935 0.88%
24 ARBUTUS BIOPHARMA CORP 180,582 1,100 0.01%
25 ARRAY BIOPHARMA INC 4,310,666 19,657 0.18%
26 ARRAY BIOPHARMA INC 3 06/01/2020 3,000,000 2,921 0.03% PRN
27 ASSEMBLY BIOSCIENCES INC 250,000 2,390 0.02%
28 AURINIA PHARMACEUTICALS INC 711,499 1,999 0.02%
29 Aldeyra Therapeutics Inc 142,000 828 0.01%
30 Anacor Pharmaceuticals Inc 4,135,412 486,779 4.50%
31 Arrowhead Pharma Inc 1,009,509 5,815 0.05%
32 Ascendis Pharma 435,540 7,709 0.07%
33 BELLEROPHON THERAPEUTICS INC 352,928 1,832 0.02%
34 BELLICUM PHARMACEUTICALS INCORPORATED 4,190,594 60,889 0.56%
35 BIOCRYST PHARMACEUTICALS 14,110,179 160,856 1.49%
36 BIODELIVERY SCIENCES INTL IN 210,021 1,168 0.01%
37 BIOMARIN PHARMACEUTICAL INC 4,076,353 429,321 3.97%
38 BIOMARIN PHARMACEUTICAL INC SR SB CV1.875 17 22,379,000 115,619 1.07% PRN
39 BIOMARIN PHARMACEUTICAL INC 0.75 10/15/2018 12,228,000 15,899 0.15% PRN
40 BIOTIME INC 20,084 17 0.00%
41 BLUEBIRD BIO INC COM 141,105 12,072 0.11%
42 CATALYST PHARMACEUTICALS INC 7,335,692 22,007 0.20%
43 CELLECTIS S A 50,000 1,318 0.01%
44 CERUS CORP 13,553,275 61,532 0.57%
45 CHEMOCENTRYX INC 49,064 297 0.00%
46 CHIMERIX INC 115,216 4,401 0.04%
47 CLOVIS ONCOLOGY INC 202,630 18,634 0.17%
48 CLOVIS ONCOLOGY INC 129,300,000 215,311 1.99% PRN
49 CONCERT PHARMACEUTICALS INCORPORATED 495,908 9,308 0.09%
50 CYCLACEL PHARMACEUTICALS INC 13,253 62 0.00%
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