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Institutional Investment Manager
Palo Alto Investors LP
Palo Alto Investors LP (CIK: 0001306923) incorporated in California, located at 101 University Ave, Palo Alto, CA. Institutional holdings reported to the SEC.

Institutional Holdings (2016Q3)
Original 13F HR (0001306923-16-000052) filed in 2016.11.14
#
Name
Shares
Value ($)
%
Options
Notes
1 AMICUS THERAPEUTICS INC COM 5,685,388 42,072 2.44%
2 RIGEL PHARMACEUTICAL INC 5,186,088 19,033 1.11%
3 INSMED INC 5,091,298 73,926 4.29%
4 VANDA PHARMACEUTICALS INC COM 4,110,708 68,402 3.97%
5 CLOVIS ONCOLOGY INC 3,804,088 137,137 7.97%
6 AMAG PHARMACEUTICALS INC 3,326,720 81,538 4.74%
7 STAAR Surgical Co 3,244,610 30,499 1.77%
8 KARYOPHARM THERAPEUTICS INC COM 3,085,849 30,025 1.74%
9 ALIMERA SCIENCES INC 3,013,793 4,491 0.26%
10 CEMPRA INC 2,844,483 68,836 4.00%
11 EPIZYME INC COM 2,814,540 27,695 1.61%
12 ARIAD PHARMACEUTICALS ORD (NMS) 2,587,617 35,424 2.06%
13 Wright Medical Group NV 2,440,493 59,865 3.48%
14 ABIOMED INC 1,884,384 242,294 14.07%
15 BIOMARIN PHARMACEUTICAL INC 1,790,899 165,694 9.62%
16 UNITED THERAPEUTICS CORP DEL 1,763,458 208,229 12.10%
17 MOMENTA PHARMACEUTICALS INC 1,650,876 19,299 1.12%
18 ACELRX PHARMACEUTICALS INC 1,634,608 6,359 0.37%
19 ACADIA PHARMACEUTICALS INC COM 1,481,930 47,140 2.74%
20 ZELTIQ AESTHETICS INC 1,414,563 55,479 3.22%
21 IDERA PHARMACEUTICALS INCORPORATED COM NEW 1,257,748 3,220 0.19%
22 Sunesis Pharmaceuticals, Inc. 1,162,473 5,080 0.30%
23 ENDO INTL PLC 945,330 19,048 1.11%
24 PROTHENA CORP PLC 934,455 56,039 3.26%
25 SAGE THERAPEUTICS INC 902,051 41,539 2.41%
26 ALEXION PHARMACEUTIC 561,700 68,831 4.00%
27 HISTOGENICS CORP 454,545 1,459 0.08%
28 EXACT SCIENCES CORP 396,976 7,372 0.43%
29 AIMMUNE THERAPEUTICS INC COM 379,727 5,696 0.33%
30 GILEAD SCIENCES INC 318,400 25,192 1.46%
31 CELGENE CORP 292,700 30,596 1.78%
32 ALCOBRA LTD 272,788 674 0.04%
33 DICERNA PHARMACEUTICALS INC 267,890 1,575 0.09%
34 SOPHIRIS BIO INC 247,000 768 0.04%
35 OREXIGEN THERAPEUTICS INC 167,302 555 0.03%
36 CYTOKINETICS INC 123,686 1,135 0.07%
37 SHIRE PLC 123,200 23,884 1.39%
38 Marinus Pharmaceuticals Inc 63,517 116 0.01%
39 INTREXON CORPORATION 47,100 1,320 0.08%
40 ALIGN TECHNOLOGY INC 37,457 3,512 0.20%
41 ZOGENIX INC 29,500 337 0.02%
42 UNIQURE NV 20,453 156 0.01%