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

Institutional Holders (2014Q4)
Portfolio Summary: 366 Institutional holders with a total value of $4,555,881,295.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 VANGUARD GROUP INC 7,055,313 468,614,000 10.29%
2 BlackRock Fund Advisors 6,718,696 446,256,000 9.80%
3 STATE STREET CORP 4,017,969 266,865,000 5.86%
4 Perkins Investment Management, LLC 3,455,795 229,534,000 5.04%
5 BlackRock Institutional Trust Company, N.A. 3,175,174 210,895,000 4.63%
6 FMR LLC 1,800,314 119,577,000 2.62%
7 JENNISON ASSOCIATES LLC 1,657,144 110,068,000 2.42%
8 FRANKLIN RESOURCES INC 1,547,225 102,767,000 2.26%
9 Boston Partners 1,531,732 101,738,000 2.23%
10 Bank of New York Mellon Corp 1,526,064 101,361,000 2.22%
11 DUFF & PHELPS INVESTMENT MANAGEMENT CO 1,500,000 99,630,000 2.19%
12 Neuberger Berman Group LLC 1,455,579 96,679,000 2.12%
13 WELLINGTON MANAGEMENT GROUP LLP 1,343,593 89,241,000 1.96%
14 NORTHERN TRUST CORP 1,306,710 86,793,000 1.91%
15 NORGES BANK 872,004 57,918,000 1.27%
16 VICTORY CAPITAL MANAGEMENT INC 811,450 53,897,000 1.18%
17 COMMONWEALTH BANK OF AUSTRALIA 788,079 52,344,000 1.15%
18 BlackRock Group LTD 761,069 50,549,000 1.11%
19 Legal & General Group Plc 734,295 48,779,000 1.07%
20 PICTET ASSET MANAGEMENT LTD 702,893 46,686,000 1.02%
21 MANUFACTURERS LIFE INSURANCE COMPANY, THE 702,518 46,661,000 1.02%
22 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 593,981 39,452,218 0.87%
23 GEODE CAPITAL MANAGEMENT, LLC 573,480 38,069,000 0.84%
24 FIRST TRUST ADVISORS LP 563,796 37,447,000 0.82%
25 REGIONS FINANCIAL CORP 556,069 36,934,000 0.81%
26 Nuveen Asset Management, LLC 542,461 36,030,000 0.79%
27 COHEN & STEERS, INC. 540,042 35,870,000 0.79%
28 GOLDMAN SACHS GROUP INC 530,457 35,233,000 0.77%
29 AMUNDI ASSET MANAGEMENT US, INC. 515,055 34,210,000 0.75%
30 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 469,354 32,864,000 0.72%
31 THOMPSON SIEGEL & WALMSLEY LLC 482,556 32,051,000 0.70%
32 AMERIPRISE FINANCIAL INC 480,927 31,942,000 0.70%
33 MILLENNIUM MANAGEMENT LLC 468,812 31,139,000 0.68%
34 PRINCIPAL FINANCIAL GROUP INC 451,836 30,011,000 0.66%
35 AQR CAPITAL MANAGEMENT LLC 407,428 27,061,000 0.59%
36 RUSSELL FRANK CO/ 386,551 26,179,000 0.57%
37 BlackRock Investment Management, LLC 374,019 24,842,000 0.55%
38 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 351,402 23,341,000 0.51%
39 DEUTSCHE BANK AG\ 337,684 22,427,000 0.49%
40 CANADA LIFE ASSURANCE Co 335,566 22,308,000 0.49%
41 EDGE ASSET MANAGEMENT, INC 323,880 21,512,000 0.47%
42 TIAA CREF INVESTMENT MANAGEMENT LLC 314,360 20,880,000 0.46%
43 JANUS HENDERSON INVESTORS US LLC 312,787 20,775,000 0.46%
44 BLACKROCK ADVISORS LLC 309,003 20,524,000 0.45%
45 B.S. Pension Fund Trustee Ltd acting for the British Steel Pension Fund 301,352 20,016,000 0.44%
46 SCHRODER INVESTMENT MANAGEMENT GROUP 290,100 19,268,000 0.42%
47 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 285,963 18,994,000 0.42%
48 Sumitomo Mitsui Trust Group, Inc. 277,387 18,782,000 0.41%
49 NEW YORK STATE COMMON RETIREMENT FUND 282,015 18,731,000 0.41%
50 Robeco Institutional Asset Management B.V. 280,198 18,611,000 0.41%
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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.