SOUTHERN CO

Ticker: SO CUSIP: 842587107 Class: COM

Great Diamond Partners, LLC's Holding History (CIK: 0001801112)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 2,795 Value ($000) $244 Avg Close $90.89 Range $83.80 - $100.02

Q3 2025

Shares 2,862 Value ($000) $271 Avg Close $92.22 Range $88.94 - $94.90

Q2 2025

Shares 2,874 Value ($000) $264 Avg Close $87.99 Range $81.08 - $91.39

Q4 2019

Shares 1,300 Value ($000) $82 Avg Close $48.90 Range $47.42 - $50.97

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,795	$244	$90.89	$83.80 - $100.02
Q3 2025	2,862	$271	$92.22	$88.94 - $94.90
Q2 2025	2,874	$264	$87.99	$81.08 - $91.39
Q4 2019	1,300	$82	$48.90	$47.42 - $50.97