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PROTHENA CORP PLC
PROTHENA CORP PLC. Institutional holdings reported to the SEC.

Institutional Holders (2014Q1)
Portfolio Summary: 126 Institutional holders with a total value of $814,556,935.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FMR LLC 3,881,581 148,704,000 18.26%
2 PRICE T ROWE ASSOCIATES INC /MD/ 2,255,396 86,404,000 10.61%
3 ORBIMED ADVISORS LLC 1,889,000 72,368,000 8.88%
4 WELLINGTON MANAGEMENT GROUP LLP 1,626,583 62,314,000 7.65%
5 RA CAPITAL MANAGEMENT, L.P. 1,554,918 59,569,000 7.31%
6 ADAGE CAPITAL PARTNERS GP, L.L.C. 815,943 31,259,000 3.84%
7 JENNISON ASSOCIATES LLC 770,734 29,527,000 3.62%
8 MILLENNIUM MANAGEMENT LLC 741,085 28,391,000 3.49%
9 BlackRock Fund Advisors 664,782 25,468,000 3.13%
10 Redmile Group, LLC 559,611 21,439,000 2.63%
11 PFM Health Sciences, LP 541,983 20,763,000 2.55%
12 Palo Alto Investors LP 532,918 20,416,000 2.51%
13 WESTFIELD CAPITAL MANAGEMENT CO LP 512,930 19,650,000 2.41%
14 Cormorant Asset Management, LP 350,000 13,409,000 1.65%
15 PERCEPTIVE ADVISORS LLC 350,000 13,409,000 1.65%
16 GUGGENHEIM CAPITAL LLC 265,175 10,159,000 1.25%
17 NORGES BANK 254,331 9,743,000 1.20%
18 VANGUARD GROUP INC 242,657 9,296,000 1.14%
19 BAKER BROS. ADVISORS LP 230,142 8,817,000 1.08%
20 STATE STREET CORP 218,500 8,371,000 1.03%
21 MORGAN STANLEY 208,597 7,991,000 0.98%
22 NORTHERN TRUST CORP 191,702 7,344,000 0.90%
23 BlackRock Institutional Trust Company, N.A. 173,597 6,651,000 0.82%
24 Cupps Capital Management, LLC 164,199 6,290,000 0.77%
25 GEODE CAPITAL MANAGEMENT, LLC 122,444 4,690,000 0.58%
26 Invesco Ltd. 118,590 4,543,000 0.56%
27 Ghost Tree Capital, LLC 110,000 4,214,000 0.52%
28 MILLENNIUM MANAGEMENT LLC 143,200 3,982,000 0.49% Call
29 Bank of New York Mellon Corp 85,837 3,289,000 0.40%
30 Jefferies Group LLC 85,000 3,256,000 0.40% Put
31 PointState Capital LP 80,000 3,065,000 0.38%
32 RENAISSANCE TECHNOLOGIES LLC 79,112 3,031,000 0.37%
33 TWO SIGMA INVESTMENTS, LP 65,783 2,520,000 0.31%
34 Jefferies Group LLC 65,350 2,504,000 0.31%
35 Rock Springs Capital Management LP 65,000 2,490,000 0.31%
36 MILLENNIUM MANAGEMENT LLC 88,900 2,472,000 0.30% Put
37 TIAA CREF INVESTMENT MANAGEMENT LLC 64,386 2,467,000 0.30%
38 SUSQUEHANNA INTERNATIONAL GROUP, LLP 59,000 2,260,000 0.28% Call
39 EVENTIDE ASSET MANAGEMENT, LLC 58,300 2,233,000 0.27%
40 Atika Capital Management LLC 57,500 2,203,000 0.27%
41 SPHERA FUNDS MANAGEMENT LTD. 55,000 2,107,000 0.26%
42 Spark Investment Management LLC 52,600 2,013,000 0.25%
43 BlackRock Investment Management, LLC 48,552 1,860,000 0.23%
44 WEXFORD CAPITAL LP 48,195 1,846,000 0.23%
45 Weiss Multi-Strategy Advisers LLC 40,000 1,532,000 0.19%
46 SUSQUEHANNA INTERNATIONAL GROUP, LLP 39,500 1,513,000 0.19% Put
47 Granahan Investment Management, LLC 33,894 1,298,000 0.16%
48 GOLDMAN SACHS GROUP INC 32,202 1,233,000 0.15%
49 ProShare Advisors LLC 31,133 1,193,000 0.15%
50 Absolute Return Capital, LLC 27,665 1,060,000 0.13%
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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.