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SEC EDGARSEP 31 min read$SO

Kim Matthew M. sold $9K of SO

Kim Matthew M. (Comptroller) sold 100 shares of SOUTHERN CO (SO) at $88.45 on 2026-09-01 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Kim Matthew M.
Published Sep 3, 2026, 2:00 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 3, 2026, 2:19 PM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
About AlphAI AI DeskScoring methodologyReport an issue
AlphAI market briefInsider activity
Primary signal
$SO
Neutral
high confidence
Mentioned
$SO
Relevance
2/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$SONeutralLow
01

Why it matters

The disclosed sale is routine and unlikely to affect investor sentiment.

02

Market read

Low relevance; typical insider sell with minimal market impact.

03

What to watch

Potential upcoming capital allocation decisions not disclosed.

Relevance 2/10Novelty 4/10Timing: filing today

Background

Southern Co (SO) is a large U.S. utility; insider transactions are regularly reported via Form 4.

Company-level read

Ticker impact

$SONeutralHigh confidence
Context

Form 4 disclosed a 100‑share sale by Comptroller Kim Matthew M. for $8,845 via a 10b5‑1 plan.

Expected impact

No material impact; price likely unchanged.

Evidence & confidence

Sale size is trivial relative to total holdings and market cap; insider used a pre‑arranged plan.

Market effects

Sector

None; Southern Co operates in utilities with stable demand.

Regional

No regional effect; transaction is company‑specific.

Global

Negligible

Counterpoint

What could challenge this read

Even small insider sales can signal concerns; monitor future filings.

Key entities

  • Officer
    Kim Matthew M.

    Comptroller of Southern Co who sold 100 shares.

Read at source← All news

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

SO insider trading history →

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