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Alliant Energy stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+12.3% to $72.67
Alliant Energy (LNT) stock rose 12% over the last 252 sessions, to $72.67. On the way it reported 5 quarters, its insiders filed no open-market trades (10b5-1 plan sales aside), and the company filed 5 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Oct 29, 2026 | Earnings | Earnings: beat the EPS estimate by 16.2% | +1.9% (+2.2% vs SPY) | +6.9% (+7.6% vs SPY) | — |
| Oct 28, 2026 | 8-K | Material definitive agreement | −1.0% (−1.3% vs SPY) | +3.7% (+5.7% vs SPY) | — |
| Jul 30, 2026 | Earnings | Earnings: beat the EPS estimate by 12.2% | −1.6% (−3.2% vs SPY) | −1.8% (−7.2% vs SPY) | −4.7% (−10.2% vs SPY) |
| Apr 30, 2026 | Earnings | Earnings: beat the EPS estimate by 2.8% | +2.7% (+1.7% vs SPY) | +1.2% (−1.9% vs SPY) | +0.2% (−5.9% vs SPY) |
| Mar 19, 2026 | 8-K | Material definitive agreement | −3.7% (−2.3% vs SPY) | −1.5% (+0.5% vs SPY) | +1.5% (−5.9% vs SPY) |
| Mar 4, 2026 | 8-K | Material definitive agreement | −1.3% (−0.8% vs SPY) | −2.1% (−0.8% vs SPY) | +0.8% (+4.9% vs SPY) |
| Feb 19, 2026 | Earnings | Earnings: beat the EPS estimate by 2.7% | +0.7% (+1.0% vs SPY) | +2.5% (+1.5% vs SPY) | +2.6% (+6.5% vs SPY) |
| Jan 8, 2026 | 8-K | Directors and officers: departures, appointments, pay | −0.8% (−1.5% vs SPY) | +2.3% (+1.9% vs SPY) | +2.9% (+2.2% vs SPY) |
| Dec 16, 2025 | 8-K | Directors and officers: departures, appointments, pay | +0.3% (+1.4% vs SPY) | 0.0% (−1.6% vs SPY) | +3.1% (+1.0% vs SPY) |
| Nov 6, 2025 | Earnings | Earnings: missed the EPS estimate by -5.8% | −0.2% (+0.9% vs SPY) | +1.9% (+1.1% vs SPY) | −2.0% (−3.2% vs SPY) |
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
| 1.01 Material definitive agreement | 23,525 | 0.0% | 51% | +1.0% | ±1.4% |
| 2.03 New debt or off-balance-sheet obligation | 13,268 | 0.0% | 50% | +1.2% | ±1.3% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Report card: every quarter against the estimate → Alliant Energy: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.