Alliant Energy Corp: Ownership

Ownership Information
Shares Outstanding 111.00 Mil
Institutional Ownership (%)53.74
Top 10 Institutions (%)24.60
Mutual Fund Ownership (%)1.02
5%/Insider Ownership (%).94
Float (%)99.06
Ownership Activity
Description# of HoldersShares
Total Positions 27459,650,624
New Positions320
Soldout Positions860
Net Position Change-73-3,813,314
Buyers1207,689,094
Sellers193-11,502,408
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Institution Name Shs Held Shs Chg %Chg $Chg* %Out %Port Rpt Date
BlackRock Institutional Trust Company, N.A. 5,496,157 -115,987 -2.1 6,422,649 5.0 0.0 09-30-09
Vanguard Group, Inc. 3,774,575 54,689 1.5 7,921,293 3.4 0.0 09-30-09
LSV Asset Management 3,333,040 -56,500 -1.7 4,256,484 3.0 0.3 09-30-09
Pictet Asset Management Ltd. 3,078,700 -2,057,480 -40.1 -48,466,588 2.8 0.6 09-30-09
State Street Global Advisors (US) 2,724,890 23,835 0.9 5,309,620 2.5 0.0 09-30-09
Aronson + Johnson + Ortiz, L.P. 2,624,600 -227,100 -8.0 -1,419,811 2.4 0.4 09-30-09
AllianceBernstein L.P. 2,270,951 -2,151,131 -48.6 -52,303,016 2.1 0.0 09-30-09
Duff & Phelps Investment Management Company 1,500,000 0 0.0 2,580,000 1.4 1.4 09-30-09
Franklin Advisers, Inc. 1,285,000 0 0.0 2,210,200 1.2 0.1 09-30-09
Luminus Management, L.L.C. 1,259,008 1,259,008 100.0 35,063,372 1.1 1.2 09-30-09
Robeco Investment Management, Inc. 1,189,175 186,685 18.6 6,923,460 1.1 0.3 09-30-09
Putnam Investment Management, L.L.C. 1,120,497 293,739 35.5 9,602,654 1.0 0.1 09-30-09
Security Global Investors, LLC 1,060,655 220,693 26.3 7,591,035 1.0 0.9 09-30-09
DePrince, Race & Zollo, Inc. 1,017,200 1,017,200 100.0 28,329,020 0.9 0.8 09-30-09
Longbow Capital Partners, L.P. 907,217 150,118 19.8 5,482,996 0.8 5.4 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 7:03 AM Eastern Time