Dark
Light
System
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 ALNYLAM PHARMACEUTICALS INC 11,340 911 0.01%
2 CYCLACEL PHARMACEUTICALS INC 13,253 62 0.00%
3 FIVE PRIME THERAPEUTICS INC 19,247 296 0.00%
4 BIOTIME INC 20,084 17 0.00%
5 Foundation Medicine 20,892 385 0.00%
6 ACCELERON PHARMA INC 28,765 716 0.01%
7 UNIQURE NV 30,000 614 0.01%
8 APTOSE BIOSCIENCES INC 33,397 144 0.00%
9 OPHTHOTECH CORP 35,649 1,444 0.01%
10 CHEMOCENTRYX INC 49,064 297 0.00%
11 CELLECTIS S A 50,000 1,318 0.01%
12 IONIS PHARMACEUTICAL 57,140 2,310 0.02%
13 TRILLIUM THERAPEUTICS INC 63,014 821 0.01%
14 SYNERGY PHARMACEUTICALS DEL 67,100 356 0.00%
15 LIGAND PHARMACEUTICALS INC 73,386 6,286 0.06%
16 DYNAVAX TECHNOLOGIES CORP 75,000 1,841 0.02%
17 ENANTA PHARMACEUTICALS INC 75,357 2,723 0.03%
18 JUNO THERAPEUTICS INC COM 80,000 3,255 0.03%
19 AGIOS PHARMACEUTICALS INC 100,000 7,059 0.07%
20 ADAPTIMMUNE THERAPEUTICS PLC 100,000 1,197 0.01%
21 ACHAOGEN INC COM 100,000 576 0.01%
22 LOXO ONCOLOGY INC COM 100,000 1,748 0.02%
23 SAGE THERAPEUTICS INC 105,000 4,444 0.04%
24 CHIMERIX INC 115,216 4,401 0.04%
25 ULTRAGENYX PHARMACEUTICAL INC COM 123,894 11,932 0.11%
26 SERES THERAPEUTICS INC 125,000 3,705 0.03%
27 BLUEBIRD BIO INC COM 141,105 12,072 0.11%
28 Aldeyra Therapeutics Inc 142,000 828 0.01%
29 IMMUNE DESIGN CORP 148,937 1,817 0.02%
30 IRONWOOD PHARMACEUTICALS INC 169,163 1,763 0.02%
31 ARBUTUS BIOPHARMA CORP 180,582 1,100 0.01%
32 VITAE PHARMACEUTICALS INC 187,597 2,065 0.02%
33 GLOBAL BLOOD THERAPEUTICS INCORPORATED 200,000 8,432 0.08%
34 Marinus Pharmaceuticals Inc 200,000 1,668 0.02%
35 Sierra Oncology, Inc. 200,000 4,104 0.04%
36 CLOVIS ONCOLOGY INC 202,630 18,634 0.17%
37 BIODELIVERY SCIENCES INTL IN 210,021 1,168 0.01%
38 KARYOPHARM THERAPEUTICS INC COM 216,990 2,285 0.02%
39 MEDIWOUND ORD 225,000 1,717 0.02%
40 EPIZYME INC COM 232,481 2,990 0.03%
41 GILEAD SCIENCES INC 249,995 24,547 0.23%
42 Natera, Inc. 250,000 2,713 0.03%
43 AIMMUNE THERAPEUTICS INC COM 250,000 6,330 0.06%
44 ASSEMBLY BIOSCIENCES INC 250,000 2,390 0.02%
45 Proteon Therapeutics Inc 274,617 3,820 0.04%
46 DERMIRA INC COM 275,000 6,419 0.06%
47 AERIE PHARMACEUTICALS INC COM 299,356 5,311 0.05%
48 NEURODERM LTD 305,000 6,304 0.06%
49 STEMLINE THERAPEUTICS INC 333,497 2,945 0.03%
50 OMEROS CORP 336,226 3,685 0.03%
Page 1 of 3