| 50.77 Data as of May 24 |  -0.25 / -0.49%Today’s Change | 42.21 Today|||52-Week Range 53.52 | +15.62% Year-to-Date |
| Mutual fund holders | 30.41% |
| Other institutional | 27.74% |
| Individual stakeholders | 0.60% |
| 3/31/2013 | MILLENNIUM MANAGEMENT LLC Bought 799.0 Thousand shares of Alliant Energy Corp |
| 3/31/2013 | THE VANGUARD GROUP, INC. Bought 447.0 Thousand shares of Alliant Energy Corp |
| 3/31/2013 | SCOUT INVESTMENTS, INC. Bought 442.8 Thousand shares of Alliant Energy Corp |
| Stockholder | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| BlackRock Fund Advisors | 7.79% | 8,642,385 | 462,454,021 | +397,137 | +4.82% |
| The Vanguard Group, Inc. | 5.26% | 5,829,745 | 311,949,655 | +446,995 | +8.30% |
| SSgA Funds Management, Inc. | 3.69% | 4,090,169 | 218,864,943 | +91,703 | +2.29% |
| Pictet Asset Management SA | 2.35% | 2,608,104 | 139,559,645 | -193,709 | -6.91% |
| Wellington Management Co. LLP | 1.97% | 2,183,893 | 116,860,114 | +3,325 | +0.15% |
| Neuberger Berman LLC | 1.66% | 1,841,609 | 98,544,498 | +11,112 | +0.61% |
| Franklin Advisers, Inc. | 1.42% | 1,572,900 | 84,165,879 | 0 | 0.00% |
| Duff & Phelps Investment Manageme... | 1.35% | 1,500,000 | 80,265,000 | 0 | 0.00% |
| Millennium Management LLC | 1.22% | 1,348,928 | 72,181,137 | +798,967 | +145.28% |
| Fidelity Management & Research Co... | 1.20% | 1,332,171 | 71,284,470 | -840,358 | -38.68% |
| Mutual fund | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| iShares Dow Jones Select Dividend... | 2.48% | 2,747,810 | 147,035,313 | +62,988 | +2.35% |
| Pictet Global Selection Fund - Gl... | 2.15% | 2,388,187 | 127,791,886 | +137,607 | +6.11% |
| Vanguard Mid Cap Index Fund | 1.45% | 1,610,499 | 86,177,801 | +160,936 | +11.10% |
| Vanguard Total Stock Market Index... | 1.39% | 1,545,542 | 82,701,952 | +62,762 | +4.23% |
| DNP Select Income Fund | 1.35% | 1,500,000 | 80,265,000 | 0 | 0.00% |
| Franklin Utilities Fund | 1.35% | 1,500,000 | 80,265,000 | 0 | 0.00% |
| iShares Core S&P Mid Cap ETF | 1.17% | 1,302,045 | 69,672,428 | +49,028 | +3.91% |
| Prudential Jennison Utility Fund | 1.15% | 1,279,110 | 68,445,176 | +375,051 | +41.49% |
| SPDR S&P Mid Cap 400 ETF Trust | 0.89% | 984,861 | 52,699,912 | -23,197 | -2.30% |
| Vanguard Extended Market Index Fu... | 0.86% | 953,106 | 51,000,702 | +36,303 | +3.96% |
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