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ALLIANT ENERGY CORP
ALLIANT ENERGY CORP. Institutional holdings reported to the SEC.

Institutional Holders (2015Q4)
Portfolio Summary: 407 Institutional holders with a total value of $4,529,463,935.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 VANGUARD GROUP INC 8,155,455 509,308,000 11.24%
2 BlackRock Fund Advisors 6,851,135 427,853,000 9.45%
3 STATE STREET CORP 4,091,778 255,528,000 5.64%
4 BlackRock Institutional Trust Company, N.A. 3,374,971 210,767,000 4.65%
5 Boston Partners 2,438,193 152,265,000 3.36%
6 Perkins Investment Management, LLC 1,944,455 121,431,000 2.68%
7 FRANKLIN RESOURCES INC 1,941,600 121,253,000 2.68%
8 JENNISON ASSOCIATES LLC 1,602,900 100,101,000 2.21%
9 FMR LLC 1,521,278 95,003,000 2.10%
10 DUFF & PHELPS INVESTMENT MANAGEMENT CO 1,500,000 93,675,000 2.07%
11 THOMPSON SIEGEL & WALMSLEY LLC 1,494,882 93,355,000 2.06%
12 Bank of New York Mellon Corp 1,379,605 86,157,000 1.90%
13 WELLINGTON MANAGEMENT GROUP LLP 1,292,695 80,729,000 1.78%
14 COHEN & STEERS, INC. 1,263,390 78,899,000 1.74%
15 VICTORY CAPITAL MANAGEMENT INC 1,213,410 75,777,000 1.67%
16 NORTHERN TRUST CORP 1,213,192 75,764,000 1.67%
17 PICTET ASSET MANAGEMENT LTD 1,072,300 66,965,000 1.48%
18 COMMONWEALTH BANK OF AUSTRALIA 989,597 61,800,000 1.36%
19 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 884,255 55,222,000 1.22%
20 NORGES BANK 860,826 53,759,000 1.19%
21 Legal & General Group Plc 811,574 50,687,000 1.12%
22 BlackRock Group LTD 781,788 48,823,000 1.08%
23 MANUFACTURERS LIFE INSURANCE COMPANY, THE 743,032 46,402,000 1.02%
24 PRINCIPAL FINANCIAL GROUP INC 660,716 41,262,000 0.91%
25 GEODE CAPITAL MANAGEMENT, LLC 658,813 41,115,000 0.91%
26 Neuberger Berman Group LLC 644,560 40,253,000 0.89%
27 REGIONS FINANCIAL CORP 633,293 39,550,000 0.87%
28 PGGM Investments 629,648 39,322,000 0.87%
29 AQR CAPITAL MANAGEMENT LLC 614,262 38,361,000 0.85%
30 SCHRODER INVESTMENT MANAGEMENT GROUP 563,509 35,191,000 0.78%
31 BALYASNY ASSET MANAGEMENT L.P. 559,033 34,912,000 0.77%
32 GOLDMAN SACHS GROUP INC 537,879 33,591,000 0.74%
33 DEUTSCHE BANK AG\ 530,017 33,098,000 0.73%
34 EDGE ASSET MANAGEMENT, INC 524,888 32,779,000 0.72%
35 AMUNDI ASSET MANAGEMENT US, INC. 509,168 31,798,000 0.70%
36 BANK OF AMERICA CORP /DE/ 402,961 25,165,000 0.56%
37 BlackRock Investment Management, LLC 373,735 23,340,000 0.52%
38 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 368,848 23,035,000 0.51%
39 AMERIPRISE FINANCIAL INC 354,308 22,128,000 0.49%
40 B.S. Pension Fund Trustee Ltd acting for the British Steel Pension Fund 351,984 21,981,000 0.49%
41 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 345,935 21,604,000 0.48%
42 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 339,654 21,211,000 0.47%
43 Retirement Systems of Alabama 339,096 21,177,000 0.47%
44 Nationwide Fund Advisors 324,936 20,292,000 0.45%
45 NEW YORK STATE COMMON RETIREMENT FUND 322,200 20,121,000 0.44%
46 Sumitomo Mitsui Trust Group, Inc. 300,338 19,056,000 0.42%
47 FIRST TRUST ADVISORS LP 304,165 18,995,000 0.42%
48 PRUDENTIAL FINANCIAL INC 294,721 18,405,000 0.41%
49 MORGAN STANLEY 291,112 18,180,000 0.40%
50 VAUGHAN DAVID INVESTMENTS LLC/IL 281,929 17,606,000 0.39%
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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.