CIK 0000352541 · Large accelerated filer
ALLIANT ENERGY CORP
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- LNT
- Exchange
- Nasdaq
- Industry
- Electric & Other Services Combined
- FY end
- Dec 31
- Incorporated
- WI
- Entity type
- operating
- EIN
- 391380265
- Phone
- 608-458-3311
- Business address
- 4902 NORTH BILTMORE LANE, SUITE 1000, MADISON, WI, 53718-2148
- Former names
- ALLIANT ENERGY CORP, INTERSTATE ENERGY CORP, WPL HOLDINGS INC
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-10-09 | Asthana Manu Director | Grant or award · Deferred Common Stock Units | +1,157.94 | $65.85 | $76K | 2,163.56 |
| 2026-10-09 | Raymond Christie Director | Grant or award · Deferred Common Stock Units | +1,157.94 | $65.85 | $76K | 10,879.62 |
| 2026-10-09 | Falotico Nancy Joy Director | Grant or award · Deferred Common Stock Units | +863.71 | $65.85 | $57K | 21,542.59 |
| 2026-10-09 | Cortina Ignacio A Director | Grant or award · Deferred Common Stock Units | +822.58 | $65.85 | $54K | 11,848.37 |
| 2026-10-09 | Garcia Michael Dennis Director | Grant or award · Deferred Common Stock Units | +926.35 | $65.85 | $61K | 27,924.43 |
| 2026-10-09 | Cox Stephanie Director | Grant or award · Deferred Common Stock Units | +607.44 | $65.85 | $40K | 18,650.83 |
| 2026-10-09 | Newport Roger K Director | Grant or award · Deferred Common Stock Units | +877.94 | $65.85 | $58K | 33,544 |
| 2026-10-09 | ALLEN PATRICK E Director | Grant or award · Deferred Common Stock Units | +569.48 | $65.85 | $37K | 47,271.09 |
| 2026-08-10 | DURIAN ROBERT J EVP and CFO | Sale | −0.1 | $68.60 | $7 | 158,145.94 |
| 2026-07-10 | Asthana Manu Director | Grant or award · Deferred Common Stock Units | +998.04 | $76.40 | $76K | 998.04 |
| 2026-07-10 | Raymond Christie Director | Grant or award · Deferred Common Stock Units | +998.04 | $76.40 | $76K | 9,648.31 |
| 2026-07-10 | Falotico Nancy Joy Director | Grant or award · Deferred Common Stock Units | +744.44 | $76.40 | $57K | 20,522.81 |
| 2026-07-10 | Cortina Ignacio A Director | Grant or award · Deferred Common Stock Units | +638.09 | $76.40 | $49K | 10,942.58 |
| 2026-07-10 | Garcia Michael Dennis Director | Grant or award · Deferred Common Stock Units | +837.7 | $76.40 | $64K | 26,794.32 |
| 2026-07-10 | Cox Stephanie Director | Grant or award · Deferred Common Stock Units | +523.56 | $76.40 | $40K | 17,907.2 |
| 2026-07-10 | Newport Roger K Director | Grant or award · Deferred Common Stock Units | +736.26 | $76.40 | $56K | 32,419.51 |
| 2026-07-10 | ALLEN PATRICK E Director | Grant or award · Deferred Common Stock Units | +490.84 | $76.40 | $38K | 46,349.14 |
| 2026-04-15 | Smyth Antonio P Executive Vice President | Shares withheld for taxes | −1,259 | $72.18 | $91K | 20,678 |
| 2026-04-10 | Raymond Christie Director | Grant or award · Deferred Common Stock Units | +1,043.09 | $73.10 | $76K | 8,585.49 |
| 2026-04-10 | Falotico Nancy Joy Director | Grant or award · Deferred Common Stock Units | +778.04 | $73.10 | $57K | 19,630.25 |
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