Alliant Energy Corp (LNT) · Insider trading
What Alliant Energy's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$0
0 insiders, 0 trades
Sold, 12 months
$7
1 insider, 0% under a plan
Net, 12 months
−$7
bought less sold
Latest filing
2026-08-12
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Durian Robert JEVP and CFO | – | $7 | 1 | 2026-08-10 | 158,146 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-10 | Durian Robert JEVP and CFO | Sale | 0 | 68.60 | $7 | 158,146 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
27 × grant or award14 × shares withheld for tax1 × gift
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-04-15 | Smyth Antonio PExecutive Vice President | Shares withheld for tax F | −1,259 | 72.18 | 20,678 | Form 4 |
| 2026-02-19 | Valcq Rebecca C.Vice President | Shares withheld for tax F | −438 | 70.01 | 2,335 | Form 4/A |
| 2026-02-19 | Durian Robert JEVP and CFO | Grant or award A | +27,882 | – | 167,806 | Form 4 |
| 2026-02-19 | Durian Robert JEVP and CFO | Grant or award A | +5,950 | – | 173,756 | Form 4 |
| 2026-02-19 | Durian Robert JEVP and CFO | Shares withheld for tax F | −16,630 | 70.01 | 157,126 | Form 4 |
| 2026-02-19 | Barton Lisa MDirector, President and CEO | Grant or award A | +47,533 | – | 106,519 | Form 4 |
| 2026-02-19 | Barton Lisa MDirector, President and CEO | Grant or award A | +29,527 | – | 136,046 | Form 4 |
| 2026-02-19 | Barton Lisa MDirector, President and CEO | Shares withheld for tax F | −28,594 | 70.01 | 107,452 | Form 4 |
| 2026-02-19 | de Leon David ASenior Vice President | Grant or award A | +8,616 | – | 50,609 | Form 4 |
| 2026-02-19 | de Leon David ASenior Vice President | Grant or award A | +2,306 | – | 52,915 | Form 4 |
| 2026-02-19 | de Leon David ASenior Vice President | Shares withheld for tax F | −5,207 | 70.01 | 47,708 | Form 4 |
| 2026-02-19 | Sundararajan RajaExecutive Vice President | Grant or award A | +18,768 | – | 35,590 | Form 4 |
| 2026-02-19 | Sundararajan RajaExecutive Vice President | Grant or award A | +8,784 | – | 44,374 | Form 4 |
| 2026-02-19 | Sundararajan RajaExecutive Vice President | Shares withheld for tax F | −11,324 | 70.01 | 33,050 | Form 4 |
| 2026-02-19 | Smyth Antonio PExecutive Vice President | Grant or award A | +13,114 | – | 22,841 | Form 4 |
| 2026-02-19 | Smyth Antonio PExecutive Vice President | Grant or award A | +5,240 | – | 28,081 | Form 4 |
| 2026-02-19 | Smyth Antonio PExecutive Vice President | Shares withheld for tax F | −6,226 | 70.01 | 21,855 | Form 4 |
| 2026-02-19 | Farlinger MayuriVice President | Grant or award A | +3,026 | – | 10,513 | Form 4 |
| 2026-02-19 | Farlinger MayuriVice President | Grant or award A | +1,098 | – | 11,611 | Form 4 |
| 2026-02-19 | Farlinger MayuriVice President | Shares withheld for tax F | −1,179 | 70.01 | 10,432 | Form 4 |
| 2026-02-19 | Syse DylanCAO and Controller | Grant or award A | +1,063 | – | 3,776 | Form 4 |
| 2026-02-19 | Syse DylanCAO and Controller | Grant or award A | +750 | – | 4,526 | Form 4 |
| 2026-02-19 | Syse DylanCAO and Controller | Shares withheld for tax F | −506 | 70.01 | 4,020 | Form 4 |
| 2026-02-19 | Valcq Rebecca C.Vice President | Grant or award A | +1,004 | – | 2,773 | Form 4 |
| 2025-04-15 | Smyth Antonio PExecutive Vice President | Grant or award A | +9,727 | – | 9,727 | Form 4 |
| 2025-02-20 | Sundararajan RajaExecutive Vice President | Grant or award A | +5,802 | – | 16,358 | Form 4 |
| 2025-02-20 | Barton Lisa MDirector, President and CEO | Grant or award A | +21,266 | – | 57,710 | Form 4 |
| 2025-02-20 | Larsen John ODirector | Grant or award A | +32,199 | – | 314,400 | Form 4 |
| 2025-02-20 | Larsen John ODirector | Shares withheld for tax F | −24,461 | 61.62 | 289,939 | Form 4 |
| 2025-02-20 | Farlinger MayuriVice President | Grant or award A | +1,022 | – | 5,810 | Form 4 |
| 2025-02-20 | Farlinger MayuriVice President | Grant or award A | +1,156 | – | 6,966 | Form 4 |
| 2025-02-20 | Farlinger MayuriVice President | Shares withheld for tax F | −560 | 61.62 | 6,406 | Form 4 |
| 2025-02-20 | de Leon David ASenior Vice President | Grant or award A | +3,256 | – | 40,855 | Form 4 |
| 2025-02-20 | de Leon David ASenior Vice President | Grant or award A | +2,532 | – | 43,387 | Form 4 |
| 2025-02-20 | de Leon David ASenior Vice President | Shares withheld for tax F | −2,560 | 61.62 | 40,827 | Form 4 |
| 2025-02-20 | Durian Robert JEVP and CFO | Grant or award A | +9,472 | – | 136,512 | Form 4 |
| 2025-02-20 | Durian Robert JEVP and CFO | Grant or award A | +6,532 | – | 143,044 | Form 4 |
| 2025-02-20 | Durian Robert JEVP and CFO | Shares withheld for tax F | −7,401 | 61.62 | 135,643 | Form 4 |
| 2025-02-20 | Bilitz Benjamin MCAO and Controller | Grant or award A | +1,590 | – | 19,822 | Form 4 |
| 2025-02-20 | Bilitz Benjamin MCAO and Controller | Grant or award A | +937 | – | 20,759 | Form 4 |
| 2025-02-20 | Bilitz Benjamin MCAO and Controller | Shares withheld for tax F | −1,339 | 61.62 | 19,420 | Form 4 |
| 2024-11-20 | Bilitz Benjamin MCAO and Controller | Gift G | −850 | – | 18,012 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.