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 (2016Q3)
Portfolio Summary: 134 holdings with a total value of $11,019,928,000.
#
Name
Shares
Value ($)
%
Options
Notes
1 SEATTLE GENETICS INC 44,100,294 2,381,857,000 21.61%
2 INCYTE 23,498,898 2,215,711,000 20.11%
3 ABBVIE INC 14,343,358 904,636,000 8.21%
4 ACADIA PHARMACEUTICALS INC COM 25,819,768 821,327,000 7.45%
5 ALEXION PHARMACEUTIC 6,543,295 801,815,000 7.28%
6 Incyte Corporation 274,500,000 531,244,000 4.82% PRN
7 Incyte Corporation 259,000,000 491,344,000 4.46% PRN
8 BIOMARIN 4,806,483 444,696,000 4.04%
9 GENOMIC HEALTH INC COM 13,770,302 398,237,000 3.61%
10 DBV TECHNOLOGIES 5,509,560 200,162,000 1.82%
11 Aquinox Pharmaceuticals Inc 10,536,092 140,762,000 1.28%
12 BIOMARIN PHARMACEUTICAL INC 22,379,000 101,405,000 0.92% PRN
13 BELLICUM PHARMACEUTICALS INC COM 4,865,647 96,826,000 0.88%
14 CERUS CORP 13,053,275 81,061,000 0.74%
15 SPARK THERAPEUTICS INC 1,318,341 79,180,000 0.72%
16 ACORDA THERAPEUTICS 3,661,082 76,443,000 0.69%
17 CLOVIS ONCOLOGY INC NOTE 72,758,000 69,135,000 0.63% PRN
18 AMARIN CORP PLC 20,630,477 65,811,000 0.60%
19 EXELIXIS INC 4,929,494 63,048,000 0.57%
20 ACORDA THERAPEUTICS INC 77,083,000 62,830,000 0.57% PRN
21 BEIGENE LTD 1,912,680 58,930,000 0.53%
22 INVITAE CORP 6,554,967 57,422,000 0.52%
23 HERON THERAPEUTICS INC 2,857,250 49,230,000 0.45%
24 BIOCRYST PHARMACEUTICALS 10,963,944 48,351,000 0.44%
25 NEUROCRINE BIOSCIE COM USD0.001 895,422 45,344,000 0.41%
26 ADVANCED ACCELERATOR APPLIC 1,029,247 39,194,000 0.36%
27 VERSARTIS INC COM 2,134,247 26,145,000 0.24%
28 PROGENICS PHARMACEUTICALS IN 3,650,808 23,110,000 0.21%
29 Foamix Pharmaceuticals Ltd. 2,466,702 22,842,000 0.21%
30 ARRAY BIOPHARMA INC COM 3,310,666 22,347,000 0.20%
31 XENCOR INC COM 872,072 21,357,000 0.19%
32 HALOZYME THERAPEUTICS INC 1,731,057 20,911,000 0.19%
33 ACHILLION PHARMACEUTICALS INC COM 2,475,515 20,052,000 0.18%
34 BLUEBIRD BIO INCORPORATED 293,943 19,923,000 0.18%
35 MERUS N V 1,160,014 19,430,000 0.18%
36 SANGAMO BIOSCIENCES INCORPORATED 4,055,876 18,779,000 0.17%
37 INTELLIA THERAPEUTICS INC 1,062,120 18,077,000 0.16%
38 IDERA PHARMACEUTICALS INC 7,014,015 17,956,000 0.16%
39 DERMA SCIENCES INC COM PAR .01 3,752,390 17,524,000 0.16%
40 AEGERION PHARMACEUTICALS INC 26,517,000 17,432,000 0.16% PRN
41 GALAPAGOS NV 259,894 16,805,000 0.15%
42 TG THERAPEUTICS INC COM 2,003,991 15,511,000 0.14%
43 MIRATI THERAPEUTICS INC COM 2,269,198 14,999,000 0.14%
44 Ascendis Pharma 745,521 14,985,000 0.14%
45 BIOMARIN PHARMACEUTICAL INC 12,228,000 14,630,000 0.13% PRN
46 ARROWHEAD PHARMACEUTICALS IN 1,856,967 13,649,000 0.12%
47 VITAE PHARMACEUTICALS INC 637,597 13,339,000 0.12%
48 ALKERMES PLC SHS 250,251 11,769,000 0.11%
49 ZOGENIX INC 1,000,000 11,430,000 0.10%
50 AERIE PHARMACEUTICALS INC 299,356 11,298,000 0.10%
Page 1 of 3

Portfolio data is normalized using SEC Form 13F filings, including the Original 13F-HR (0001144204-16-134352, filed 2016.11.14).

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.