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Southern stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+5.0% to $92.34
Southern (SO) stock rose 5% over the last 252 sessions, to $92.34. On the way it reported 4 quarters, its insiders filed 1 open-market trade and 4 Form 144 notices of planned sales, and the company filed 3 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 |
|---|---|---|---|---|---|
| Nov 6, 2026 | Form 144 | Form 144: Sterling Spainhour plans to sell $306K | −1.1% (−1.4% vs SPY) | — | — |
| Nov 5, 2026 | Earnings | Earnings: beat the EPS estimate by 13.4% | +0.2% (+4.7% vs SPY) | — | — |
| Sep 3, 2026 | Form 144 | Form 144: Matthew Kim plans to sell $124K | +0.5% (−0.5% vs SPY) | −0.6% (+0.3% vs SPY) | −5.3% (−6.2% vs SPY) |
| Sep 3, 2026 | Form 144 | Form 144: Peter P Sena III plans to sell $378K | +0.5% (−0.5% vs SPY) | −0.6% (+0.3% vs SPY) | −5.3% (−6.2% vs SPY) |
| Sep 3, 2026 | Insider sale | Kim Matthew M. sold $124K | +0.5% (−0.5% vs SPY) | −0.6% (+0.3% vs SPY) | −5.3% (−6.2% vs SPY) |
| Aug 6, 2026 | 8-K | New debt or off-balance-sheet obligation | −0.2% (−0.1% vs SPY) | −0.6% (−1.0% vs SPY) | −3.9% (−4.4% vs SPY) |
| Aug 6, 2026 | Form 144 | Form 144: Sterling Spainhour plans to sell $313K | −0.2% (−0.1% vs SPY) | −0.6% (−1.0% vs SPY) | −3.9% (−4.4% vs SPY) |
| Jul 30, 2026 | Earnings | Earnings: beat the EPS estimate by 11.8% | −1.8% (−3.5% vs SPY) | −3.1% (−8.5% vs SPY) | −6.7% (−12.3% vs SPY) |
| Apr 30, 2026 | Earnings | Earnings: beat the EPS estimate by 8.9% | +3.4% (+2.4% vs SPY) | 0.0% (−3.1% vs SPY) | −0.7% (−6.8% vs SPY) |
| Feb 25, 2026 | 8-K | Material definitive agreement | +0.1% (−0.7% vs SPY) | +1.0% (+2.1% vs SPY) | −1.3% (+3.0% vs SPY) |
| Feb 19, 2026 | Earnings | Earnings: missed the EPS estimate by -1.4% | +4.3% (+4.6% vs SPY) | +5.2% (+4.2% vs SPY) | +5.5% (+9.5% vs SPY) |
| Feb 17, 2026 | 8-K | Directors and officers: departures, appointments, pay | −2.4% (−2.5% vs SPY) | +1.0% (+0.9% vs SPY) | +4.2% (+5.9% vs SPY) |
Insiders’ record here
In the year on the chart, Southern's insiders reported 0 open-market buys ($0) and 1 sale ($124K).
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
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 → Southern: 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.