Alliant Energy Corp. (LNT) Insider Trading
Directors, officers and holders of more than 10% of LNT report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 104 transactions on file: 0 with code P, 1 with code S and 49 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 9, 2026 | Cox Stephanie | Director | A Award | 607 | $65.85 | $40,000 |
| Oct 9, 2026 | Raymond Christie | Director | A Award | 1,158 | $65.85 | $76,250 |
| Oct 9, 2026 | Falotico Nancy Joy | Director | A Award | 864 | $65.85 | $56,875 |
| Oct 9, 2026 | Newport Roger K | Director | A Award | 878 | $65.85 | $57,812 |
| Oct 9, 2026 | ALLEN PATRICK E | Director | A Award | 569 | $65.85 | $37,500 |
| Oct 9, 2026 | Garcia Michael Dennis | Director | A Award | 926 | $65.85 | $61,000 |
| Oct 9, 2026 | Asthana Manu | Director | A Award | 1,158 | $65.85 | $76,250 |
| Oct 9, 2026 | Cortina Ignacio A | Director | A Award | 823 | $65.85 | $54,167 |
| Aug 10, 2026 | DURIAN ROBERT J | EVP and CFO | S Sale | 0 | $68.60 | $7 |
| Jul 10, 2026 | Garcia Michael Dennis | Director | A Award | 838 | $76.40 | $64,000 |
| Jul 10, 2026 | Newport Roger K | Director | A Award | 736 | $76.40 | $56,250 |
| Jul 10, 2026 | Raymond Christie | Director | A Award | 998 | $76.40 | $76,250 |
| Jul 10, 2026 | Cox Stephanie | Director | A Award | 524 | $76.40 | $40,000 |
| Jul 10, 2026 | Falotico Nancy Joy | Director | A Award | 744 | $76.40 | $56,875 |
| Jul 10, 2026 | ALLEN PATRICK E | Director | A Award | 491 | $76.40 | $37,500 |
| Jul 10, 2026 | Asthana Manu | Director | A Award | 998 | $76.40 | $76,250 |
| Jul 10, 2026 | Cortina Ignacio A | Director | A Award | 638 | $76.40 | $48,750 |
| Apr 15, 2026 | Smyth Antonio P | Executive Vice President | F Tax Payment | 1,259 | $72.18 | $90,875 |
| Apr 10, 2026 | Garcia Michael Dennis | Director | A Award | 876 | $73.10 | $64,000 |
| Apr 10, 2026 | Raymond Christie | Director | A Award | 1,043 | $73.10 | $76,250 |
| Apr 10, 2026 | Cortina Ignacio A | Director | A Award | 667 | $73.10 | $48,750 |
| Apr 10, 2026 | ALLEN PATRICK E | Director | A Award | 513 | $73.10 | $37,500 |
| Apr 10, 2026 | Cox Stephanie | Director | A Award | 547 | $73.10 | $40,000 |
| Apr 10, 2026 | Falotico Nancy Joy | Director | A Award | 778 | $73.10 | $56,875 |
| Apr 10, 2026 | Newport Roger K | Director | A Award | 769 | $73.10 | $56,250 |
| Feb 19, 2026 | Farlinger Mayuri | Vice President | F Tax Payment | 1,179 | $70.01 | $82,542 |
| Feb 19, 2026 | Farlinger Mayuri | Vice President | A Award | 1,098 | Not measured | Not measured |
| Feb 19, 2026 | Farlinger Mayuri | Vice President | A Award | 3,026 | Not measured | Not measured |
| Feb 19, 2026 | DURIAN ROBERT J | EVP and CFO | F Tax Payment | 16,630 | $70.01 | $1,164,266 |
| Feb 19, 2026 | Smyth Antonio P | Executive Vice President | A Award | 13,114 | Not measured | Not measured |
| Feb 19, 2026 | DURIAN ROBERT J | EVP and CFO | A Award | 5,950 | Not measured | Not measured |
| Feb 19, 2026 | DURIAN ROBERT J | EVP and CFO | A Award | 27,882 | Not measured | Not measured |
| Feb 19, 2026 | de Leon David A | Senior Vice President | F Tax Payment | 5,207 | $70.01 | $364,542 |
| Feb 19, 2026 | de Leon David A | Senior Vice President | A Award | 2,306 | Not measured | Not measured |
| Feb 19, 2026 | de Leon David A | Senior Vice President | A Award | 8,616 | Not measured | Not measured |
| Feb 19, 2026 | Valcq Rebecca C. | Vice President | A Award | 1,004 | Not measured | Not measured |
| Feb 19, 2026 | Valcq Rebecca C. | Vice President | F Tax Payment | 438 | $70.01 | $30,664 |
| Feb 19, 2026 | Barton Lisa M | President and CEO | F Tax Payment | 28,594 | $70.01 | $2,001,866 |
| Feb 19, 2026 | Syse Dylan | CAO and Controller | F Tax Payment | 506 | $70.01 | $35,425 |
| Feb 19, 2026 | Syse Dylan | CAO and Controller | A Award | 750 | Not measured | Not measured |
| Feb 19, 2026 | Barton Lisa M | President and CEO | A Award | 29,527 | Not measured | Not measured |
| Feb 19, 2026 | Syse Dylan | CAO and Controller | A Award | 1,063 | Not measured | Not measured |
| Feb 19, 2026 | Sundararajan Raja | Executive Vice President | F Tax Payment | 11,324 | $70.01 | $792,793 |
| Feb 19, 2026 | Barton Lisa M | President and CEO | A Award | 47,533 | Not measured | Not measured |
| Feb 19, 2026 | Sundararajan Raja | Executive Vice President | A Award | 8,784 | Not measured | Not measured |
| Feb 19, 2026 | Sundararajan Raja | Executive Vice President | A Award | 18,768 | Not measured | Not measured |
| Feb 19, 2026 | Smyth Antonio P | Executive Vice President | F Tax Payment | 6,226 | $70.01 | $435,882 |
| Feb 19, 2026 | Smyth Antonio P | Executive Vice President | A Award | 5,240 | Not measured | Not measured |
| Jan 9, 2026 | Raymond Christie | Director | A Award | 1,173 | $65.02 | $76,250 |
| Jan 9, 2026 | Newport Roger K | Director | A Award | 865 | $65.02 | $56,250 |
The full Form 4 history is on the LNT company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.