Insider tradingForm 4

SOUTHERN CO (SO) Insider Trading

4 open-market trades reported since Sep 3, 2026: 0 purchases worth $0 and 4 sales worth $519K.

By insider

Insider	Role	Buys	Bought	Sells	Sold	Latest
Matthew M. Kim	Comptroller	0	$0	3	$142K	Oct 1, 2026
Peter P. Sena III	CEO	0	$0	1	$378K	Sep 4, 2026

SO insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Oct 1	Oct 1	Matthew M. KimComptroller	Comptroller	▼ SELL10b5-1	100	82.73	$8K	−2.0%	Form 4 ↗
Sep 4	Sep 3	Peter P. Sena IIICEO	CEO	▼ SELL10b5-1	4,266	88.59	$378K	−14%	Form 4 ↗
Sep 4	Sep 3	Matthew M. KimComptroller	Comptroller	▼ SELL	1,400	88.87	$124K	−22%	Form 4 ↗
Sep 3	Sep 1	Matthew M. KimComptroller	Comptroller	▼ SELL10b5-1	100	88.45	$9K	−1.5%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings