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Arrowhead Pharma Inc
Arrowhead Pharma Inc . Institutional holdings reported to the SEC.

Institutional Holders (2014Q1)
Portfolio Summary: 112 Institutional holders with a total value of $655,800,982.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FMR LLC 5,520,950 90,654,000 13.82%
2 ORBIMED ADVISORS LLC 3,910,000 64,202,000 9.79%
3 RA CAPITAL MANAGEMENT, L.P. 2,941,916 48,306,000 7.37%
4 SAC Capital Advisors LP 2,740,000 44,991,000 6.86%
5 MILLENNIUM MANAGEMENT LLC 2,225,175 36,537,000 5.57%
6 QVT Financial LP 2,024,782 32,406,000 4.94%
7 FRANKLIN RESOURCES INC 1,690,600 27,760,000 4.23%
8 MARXE AUSTIN W & GREENHOUSE DAVID M 1,283,088 21,068,000 3.21%
9 VANGUARD GROUP INC 1,219,338 20,022,000 3.05%
10 Visium Asset Management, LP 1,217,183 19,987,000 3.05%
11 Cormorant Asset Management, LP 1,000,000 16,420,000 2.50%
12 ALLIANCEBERNSTEIN L.P. 818,668 13,443,000 2.05%
13 STATE STREET CORP 785,110 12,891,000 1.97%
14 JENNISON ASSOCIATES LLC 776,746 12,754,000 1.94%
15 JANUS HENDERSON INVESTORS US LLC 772,020 12,677,000 1.93%
16 BAKER BROS. ADVISORS LP 732,062 12,020,000 1.83%
17 Bain Capital Public Equity Management, LLC 717,500 11,781,000 1.80%
18 AMERIPRISE FINANCIAL INC 701,247 11,515,000 1.76%
19 JPMORGAN CHASE & CO 673,263 11,056,000 1.69%
20 Artisan Partners Limited Partnership 657,723 10,800,000 1.65%
21 BlackRock Institutional Trust Company, N.A. 642,552 10,551,000 1.61%
22 HealthCor Management, L.P. 450,000 7,389,000 1.13%
23 SIGMA CAPITAL MANAGEMENT LLC 400,000 6,568,000 1.00%
24 GOLDMAN SACHS GROUP INC 364,000 5,977,000 0.91% Call
25 BNP Paribas Asset Management Holding S.A. 320,941 5,270,000 0.80%
26 PERCEPTIVE ADVISORS LLC 317,300 5,210,000 0.79%
27 WEXFORD CAPITAL LP 307,100 5,043,000 0.77%
28 SUSQUEHANNA INTERNATIONAL GROUP, LLP 248,700 4,084,000 0.62% Put
29 SUSQUEHANNA INTERNATIONAL GROUP, LLP 236,340 3,881,000 0.59%
30 SUSQUEHANNA INTERNATIONAL GROUP, LLP 220,500 3,621,000 0.55% Call
31 JANE STREET GROUP, LLC 216,770 3,559,000 0.54%
32 LORD, ABBETT & CO. LLC 207,410 3,406,000 0.52%
33 Ghost Tree Capital, LLC 185,000 3,038,000 0.46%
34 MORGAN STANLEY 177,469 2,914,000 0.44%
35 GEODE CAPITAL MANAGEMENT, LLC 177,120 2,908,000 0.44%
36 DRIEHAUS CAPITAL MANAGEMENT LLC 173,404 2,847,000 0.43%
37 Hood River Capital Management LLC 163,930 2,692,000 0.41%
38 MILLENNIUM MANAGEMENT LLC 150,000 2,463,000 0.38% Call
39 D. E. Shaw & Co., Inc. 147,030 2,414,000 0.37%
40 GUGGENHEIM CAPITAL LLC 140,660 2,310,000 0.35%
41 PANAGORA ASSET MANAGEMENT INC 129,041 2,119,000 0.32%
42 Informed Momentum Co LLC 126,857 2,083,000 0.32%
43 BlackRock Fund Advisors 123,355 2,025,000 0.31%
44 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 121,630 1,997,165 0.30%
45 TWO SIGMA INVESTMENTS, LP 106,599 1,750,000 0.27%
46 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 94,847 1,554,000 0.24%
47 Weiss Multi-Strategy Advisers LLC 80,000 1,314,000 0.20%
48 UBS AG 76,429 1,255,000 0.19%
49 Rock Springs Capital Management LP 75,000 1,232,000 0.19%
50 TURNER INVESTMENTS LLC 74,800 1,228,000 0.19%
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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.