StockCIK 92122

SOUTHERN CO (SO): Insider Trades and Fund Holdings

In the past 12 months, SOUTHERN CO insiders reported 0 open-market purchases worth $0 and 4 sales worth $519K; 3 of the sales were reported as made under a 10b5-1 trading plan.

0Insider buys, 12 months

$0Bought by insiders, 12 months

$519KSold by insiders, 12 months

1Tracked funds holding

Recent insider trades

Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 1, 2026.

Recent 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

Insiders who traded in the past year

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

Tracked funds that report SO

From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.

Fund	Quarter	Shares	Value	% of portfolio	Change
Bridgewater Associates	Q2 2026	16,972	$1.62M	0.01%	▲ +44.2%
Renaissance Technologies	Q2 2026	0	$0	0.00%	▼ Sold out

Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings

Reading these numbers

Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →