Matthew M. Kim is Comptroller at SOUTHERN CO (SO). They have made 8 open-market trades across 1 company since 2026, most recently 2026-10-01.
CIK 0002082705
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| SO | 4,888 | $446K |
Shares reported on the most recent Form 4, priced at the 2026-10-01 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| SO | SELL | 2026-10-01 | 2026-10-01 | $82.73 | $8K | +5.1% | — | — |
| SO | SELL | 2026-09-03 | 2026-09-04 | $88.87 | $124K | -1.9% | -5.2% | — |
| SO | SELL | 2026-09-01 | 2026-09-03 | $88.45 | $9K | -2.4% | -5.2% | — |
| SO | SELL | 2026-08-03 | 2026-08-04 | $94.28 | $9K | -0.3% | -4.7% | — |
| SO | SELL | 2026-07-01 | 2026-07-02 | $95.77 | $10K | -3.0% | -4.7% | -14.9% |
| SO | SELL | 2026-06-01 | 2026-06-01 | $91.16 | $9K | +4.4% | +6.5% | -1.4% |
| SO | SELL | 2026-05-01 | 2026-05-04 | $96.57 | $10K | -2.6% | -5.9% | -3.4% |
| SO | SELL | 2026-02-24 | 2026-02-25 | $95.15 | $487K | +1.0% | -0.8% | -2.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.