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

Institutional Holders (2015Q1)
Portfolio Summary: 383 Institutional holders with a total value of $4,443,963,417.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 VANGUARD GROUP INC 7,470,914 470,668,000 10.59%
2 BlackRock Fund Advisors 6,718,655 423,275,000 9.52%
3 STATE STREET CORP 4,065,877 256,161,000 5.76%
4 BlackRock Institutional Trust Company, N.A. 3,382,665 213,108,000 4.80%
5 Perkins Investment Management, LLC 2,066,754 130,206,000 2.93%
6 FMR LLC 1,797,553 113,247,000 2.55%
7 JENNISON ASSOCIATES LLC 1,720,647 108,401,000 2.44%
8 Boston Partners 1,670,647 105,251,000 2.37%
9 FRANKLIN RESOURCES INC 1,647,225 103,775,000 2.34%
10 COHEN & STEERS CAPITAL MANAGEMENT INC 1,546,945 97,458,000 2.19%
11 COHEN & STEERS, INC. 1,546,945 97,458,000 2.19%
12 DUFF & PHELPS INVESTMENT MANAGEMENT CO 1,500,000 94,500,000 2.13%
13 Bank of New York Mellon Corp 1,394,249 87,837,000 1.98%
14 NORTHERN TRUST CORP 1,285,860 81,009,000 1.82%
15 WELLINGTON MANAGEMENT GROUP LLP 1,210,463 76,259,000 1.72%
16 NORGES BANK 874,598 55,100,000 1.24%
17 MILLENNIUM MANAGEMENT LLC 866,951 54,618,000 1.23%
18 Neuberger Berman Group LLC 846,488 53,329,000 1.20%
19 COMMONWEALTH BANK OF AUSTRALIA 836,588 52,705,000 1.19%
20 THOMPSON SIEGEL & WALMSLEY LLC 819,762 51,645,000 1.16%
21 BlackRock Group LTD 746,104 47,005,000 1.06%
22 Legal & General Group Plc 745,982 46,998,000 1.06%
23 PICTET ASSET MANAGEMENT LTD 740,619 44,785,000 1.01%
24 MANUFACTURERS LIFE INSURANCE COMPANY, THE 704,059 44,356,000 1.00%
25 EDGE ASSET MANAGEMENT, INC 670,560 42,245,000 0.95%
26 GEODE CAPITAL MANAGEMENT, LLC 596,046 37,528,000 0.84%
27 REGIONS FINANCIAL CORP 571,620 36,012,000 0.81%
28 Nuveen Asset Management, LLC 555,362 34,988,000 0.79%
29 GOLDMAN SACHS GROUP INC 528,184 33,276,000 0.75%
30 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 469,354 32,864,000 0.74%
31 AMUNDI ASSET MANAGEMENT US, INC. 518,755 32,682,000 0.74%
32 AMERIPRISE FINANCIAL INC 484,252 30,508,000 0.69%
33 MORGAN STANLEY 477,241 30,066,000 0.68%
34 CITADEL ADVISORS LLC 467,889 29,477,000 0.66%
35 RUSSELL FRANK CO/ 421,537 26,565,000 0.60%
36 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 413,452 26,047,476 0.59%
37 DEUTSCHE BANK AG\ 390,975 24,629,000 0.55%
38 BlackRock Investment Management, LLC 365,905 23,052,000 0.52%
39 AQR CAPITAL MANAGEMENT LLC 358,928 22,612,000 0.51%
40 BLACKROCK ADVISORS LLC 353,391 22,263,000 0.50%
41 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 347,318 21,881,000 0.49%
42 CANADA LIFE ASSURANCE Co 342,848 21,543,000 0.48%
43 PRINCIPAL FINANCIAL GROUP INC 323,682 20,392,000 0.46%
44 TIAA CREF INVESTMENT MANAGEMENT LLC 314,501 19,814,000 0.45%
45 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 310,491 19,561,000 0.44%
46 Crow Point Partners, LLC 304,000 19,152,000 0.43%
47 B.S. Pension Fund Trustee Ltd acting for the British Steel Pension Fund 301,352 18,985,000 0.43%
48 Robeco Institutional Asset Management B.V. 292,911 18,453,000 0.42%
49 SCHRODER INVESTMENT MANAGEMENT GROUP 295,900 18,239,000 0.41%
50 Sumitomo Mitsui Trust Group, Inc. 286,605 18,056,000 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.