Southern Company prices $1.75B of equity units at 8.625%, forcing stock buys by 2029

$1.75 billion priced, closing Tuesday

Southern Company▲+1.21% — Southern Company, up 1.21 percent today, the Atlanta holding company whose utilities serve about 9 million customers across the Southeast, priced 35 million Series A equity units at a $50 stated amount↗ on Thursday, November 12, $1.75 billion in all, settling Tuesday, November 17 ¹². Underwriters hold a 13-day option on 5 million more units, another $250 million ¹.

Each unit is a bond wrapped around a promise. The holder collects 8.625% a year, 3.125% on the stock-purchase contract plus 5.50% on each of two remarketable note series, and owes $50 cash for common stock no later than December 15, 2029 ¹. The share count floats between 0.4326 and 0.5407 against a $92.47 pricing-day close and a $115.58 threshold 25% above it ¹.

The first $1.7 billion goes to debt

Net proceeds of $1.723 billion, $1.970 billion if the option is exercised in full, go first to debt: about $135.3 million retires roughly $125.8 million of 4.50% convertible notes due June 2027, leaving about $335 million of that stack, and the rest repays short-term borrowings of $776 million and funds subsidiaries ¹.

The plan grew to $100 billion; the cash flow did not

The scale behind it: a week earlier, executives added about $4 billion to the $81 billion five-year plan from February↗ and said it could reach $100 billion, resting on 21 gigawatts of signed large-load contracts, 7 more in late stages, and data-center usage up 59% year over year in the third quarter ³.

Southern's filing record since that call shows one other securities registration, a November 10 prospectus for its dividend reinvestment plan↗, so these units are the first money priced since the plan grew ⁵, a path we charted when the shelf talk began.

The build already outruns the cash engine. Capital spending exceeded operating cash flow in eight of the last twelve quarters, by nearly $2 billion in the first quarter of 2026 ⁴.

Customers carry the ramp risk

Chief Financial Officer David Poroch told analysts the data-center contracts carry minimum bills covering at least 100% of the cost of serving them: "Before the kilowatt moves over the meter, we are recovering our costs embedded in those minimum bills" ³. In Southern's telling, if a customer never ramps, the customer still pays.

The referees changed anyway. Democrats won Georgia's governorship↗ and, with Peter Hubbard and Sheila Edwards taking seats, a 3-2 Public Service Commission majority that takes office in January, after campaigns animated by rate hikes and data-center growth ⁶. Governor-elect Keisha Lance Bottoms has said she will call for a pause on data-center development ⁷. Chief Executive Chris Womack's answer: "I feel pretty confident about what we have in place," and no one has raised retroactive contract freezes ³.

The first tests land in January and February

The units should list on the NYSE under SONN within 30 days, the over-allotment window runs into early December, and the new commission's first votes land in January ¹⁶. The tell is data-center usage, 59% higher at the last reading, with the next count at fourth-quarter results in early February ³. Traders marked the stock down about 1% on pricing day↗ ⁸. The 8.625% payout is the market's price tag on utility growth capital in this cycle, and Georgia's ratepayers are the ones asked to make it good ⁸.