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

Institutional Holders (2014Q1)
Portfolio Summary: 358 Institutional holders with a total value of $3,751,627,440.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 VANGUARD GROUP INC 6,491,373 368,775,000 9.83%
2 BlackRock Fund Advisors 5,861,597 332,997,000 8.88%
3 STATE STREET CORP 3,986,789 226,481,000 6.04%
4 BlackRock Institutional Trust Company, N.A. 3,263,094 185,376,000 4.94%
5 Perkins Investment Management, LLC 2,845,974 161,680,000 4.31%
6 FMR LLC 2,120,990 120,493,000 3.21%
7 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 2,109,405 119,835,298 3.19%
8 Neuberger Berman Group LLC 2,095,801 119,062,000 3.17%
9 WELLINGTON MANAGEMENT GROUP LLP 1,829,621 103,941,000 2.77%
10 Bank of New York Mellon Corp 1,634,647 92,864,000 2.48%
11 FRANKLIN RESOURCES INC 1,549,100 88,004,000 2.35%
12 DUFF & PHELPS INVESTMENT MANAGEMENT CO 1,500,000 85,215,000 2.27%
13 JENNISON ASSOCIATES LLC 1,279,110 72,666,000 1.94%
14 PICTET ASSET MANAGEMENT LTD 1,169,863 66,460,000 1.77%
15 Boston Partners 1,144,341 65,010,000 1.73%
16 NORTHERN TRUST CORP 1,071,074 60,847,000 1.62%
17 VICTORY CAPITAL MANAGEMENT INC 867,050 49,258,000 1.31%
18 NORGES BANK 836,667 47,531,000 1.27%
19 Legal & General Group Plc 792,119 45,000,000 1.20%
20 MANUFACTURERS LIFE INSURANCE COMPANY, THE 723,393 41,096,000 1.10%
21 THOMPSON SIEGEL & WALMSLEY LLC 703,136 39,945,000 1.06%
22 BlackRock Group LTD 689,417 39,166,000 1.04%
23 MILLENNIUM MANAGEMENT LLC 679,297 38,591,000 1.03%
24 GEODE CAPITAL MANAGEMENT, LLC 571,756 32,475,000 0.87%
25 BLACKROCK ADVISORS LLC 567,688 32,251,000 0.86%
26 AMERIPRISE FINANCIAL INC 548,729 31,173,000 0.83%
27 TIAA CREF INVESTMENT MANAGEMENT LLC 528,864 30,045,000 0.80%
28 REGIONS FINANCIAL CORP 489,555 27,812,000 0.74%
29 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 466,154 26,253,000 0.70%
30 BlackRock Investment Management, LLC 398,559 22,642,000 0.60%
31 PRINCIPAL FINANCIAL GROUP INC 379,528 21,561,000 0.57%
32 NEW YORK STATE COMMON RETIREMENT FUND 341,231 19,385,000 0.52%
33 AMUNDI ASSET MANAGEMENT US, INC. 340,232 19,328,000 0.52%
34 FIRST TRUST ADVISORS LP 335,286 19,048,000 0.51%
35 PRUDENTIAL FINANCIAL INC 314,585 17,872,000 0.48%
36 B.S. Pension Fund Trustee Ltd acting for the British Steel Pension Fund 303,450 17,239,000 0.46%
37 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 294,577 16,736,000 0.45%
38 DEUTSCHE BANK AG\ 293,984 16,697,000 0.45%
39 AQR CAPITAL MANAGEMENT LLC 290,083 16,480,000 0.44%
40 VAUGHAN DAVID INVESTMENTS LLC/IL 274,084 15,571,000 0.42%
41 Sumitomo Mitsui Trust Group, Inc. 272,243 15,466,000 0.41%
42 CITADEL ADVISORS LLC 269,308 15,300,000 0.41%
43 GOLDMAN SACHS GROUP INC 263,946 14,995,000 0.40%
44 MANAGED ACCOUNT ADVISORS LLC 258,857 14,706,000 0.39%
45 OppenheimerFunds, Inc. 256,300 14,560,000 0.39%
46 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 248,139 14,097,000 0.38%
47 MORGAN STANLEY 238,440 13,546,000 0.36%
48 WELLS FARGO & COMPANY/MN 235,708 13,390,000 0.36%
49 JPMORGAN CHASE & CO 235,262 13,365,000 0.36%
50 TD ASSET MANAGEMENT INC 234,287 13,310,000 0.35%
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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.