Arena Pharmaceuticals Inc: Ownership

Ownership Information
Shares Outstanding 93.00 Mil
Institutional Ownership (%)60.69
Top 10 Institutions (%)46.60
Mutual Fund Ownership (%).94
5%/Insider Ownership (%)6.15
Float (%)93.85
Ownership Activity
Description# of HoldersShares
Total Positions 12056,444,256
New Positions280
Soldout Positions580
Net Position Change121,168,945
Buyers8717,181,286
Sellers75-16,012,341
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
Wellington Management Company, LLP 12,715,110 1,536,336 13.7 1,054,460 13.7 0.0 09-30-09
OppenheimerFunds, Inc. 6,002,600 6,000,800 333,377.8 26,822,640 6.5 0.1 09-30-09
BlackRock Institutional Trust Company, N.A. 5,590,720 1,094,224 24.3 2,553,003 6.0 0.0 09-30-09
Bellevue Asset Management AG 5,431,980 500,000 10.1 -329,629 5.9 2.4 09-30-09
Vanguard Group, Inc. 3,708,543 707,650 23.6 1,602,731 4.0 0.0 09-30-09
TCW Asset Management Company 3,639,148 331,015 10.0 -240,592 3.9 0.1 09-30-09
State Street Global Advisors (US) 2,092,051 848,482 68.2 3,146,059 2.3 0.0 09-30-09
Janus Capital Management LLC 1,645,990 337,640 25.8 828,909 1.8 0.0 09-30-09
Leuthold Weeden Capital Management 1,377,613 1,377,613 100.0 6,157,930 1.5 0.2 09-30-09
Dimensional Fund Advisors, LP 1,137,682 -61,510 -5.1 -898,529 1.2 0.0 09-30-09
Norges Bank 945,349 831,394 729.6 3,372,330 1.0 0.0 12-31-08
Newton Investment Management Ltd. 881,968 0 0.0 -811,411 1.0 0.0 12-31-09
Paradigm Asset Management Company, LLC 802,500 62,500 8.4 -105,425 0.9 0.4 09-30-09
Northern Trust Investments, N.A. 802,251 228,147 39.7 721,283 0.9 0.0 09-30-09
TIAA-CREF 624,170 108,290 21.0 215,799 0.7 0.0 09-30-09
*Category Headings:
Shs Held - shares held at report date
Shs Chg - position change within reporting period
%Chg - % change
$Chg - market value of the position change
%Out - % of shares outstanding
%Port - % Portfolio
Rpt Date - report date
Page generated 2/10/2010 7:07 AM Eastern Time