Form 4: Southern Co CFO Poroch Reports Equity Award Vesting

Southern Company's EVP & CFO, David P. Poroch, reported the vesting of performance share units and restricted stock units, alongside tax-related share dispositions.

Summary

• David P. Poroch, EVP & CFO of Southern Co, reported transactions related to the vesting of equity awards.
• On February 11, 2026, Mr. Poroch acquired 9,454 shares of Southern Company Common Stock at a price of $0 upon the vesting of performance share units for the 2023-2025 award period, including accrued dividend equivalent units.
• Concurrently, 2,914 shares of Southern Company Common Stock were disposed of at $90.86 per share to satisfy state and federal tax withholding requirements related to the vesting.
• An additional 568 shares of Southern Company Common Stock were acquired at $0 upon the vesting of the first 1/3 of performance restricted stock units granted on August 1, 2025, including 10 accrued dividend equivalent units.
• Another 281 shares of Southern Company Common Stock were disposed of at $90.86 per share for tax withholding related to this vesting.
• The Compensation and Talent Development Committee certified performance for both awards on February 11, 2026.
• Following these transactions, Mr. Poroch beneficially owns 48,156 non-derivative shares and 1,114 derivative securities (Performance Restricted Stock Units).

Sentiment

Score: 6

Explanation: StockSavvy.ai views this as a moderately positive event, reflecting the successful vesting of executive compensation tied to performance, which aligns management's interests with shareholders. The tax-related dispositions are routine and do not detract significantly from the overall positive signal of earned equity.

Positives

• The vesting of 9,454 performance share units and 568 performance restricted stock units indicates successful achievement of performance targets by management.
• The acquisition of shares at a $0 price reflects the conversion of equity awards into common stock, increasing the insider's direct ownership in the company.

Negatives

• A total of 3,195 shares were disposed of to cover tax withholding obligations, representing a reduction in direct share ownership, albeit for a standard and necessary purpose.

Future Outlook

The remaining two-thirds of the performance restricted stock units granted on August 1, 2025, are scheduled to vest in equal 1/3 increments in 2027 and 2028, with additional units to be acquired from deemed dividends and shares withheld for tax requirements upon vesting.

Industry Context

StockSavvy.ai notes that routine insider transactions, such as the vesting of equity awards and subsequent tax-related dispositions, are common in the utility sector, reflecting standard executive compensation practices. These events typically do not signal significant shifts in company strategy or performance but rather the execution of pre-established compensation plans.

Stakeholder Impact

• Shareholders: The vesting of performance-based awards indicates that management has met certain performance criteria, which could be viewed positively as it aligns executive incentives with company performance. The increase in insider ownership, even after tax withholdings, can signal confidence.
• Employees: No direct impact mentioned, but executive compensation practices can influence broader company culture and morale.

Next Steps

• The remaining 1/3 of performance restricted stock units granted on August 1, 2025, are expected to vest in 2027.
• The final 1/3 of performance restricted stock units granted on August 1, 2025, are expected to vest in 2028.

Key Dates

Keywords

Southern Company, SO, Insider Transaction, Form 4, Equity Vesting, Performance Share Units, Restricted Stock Units, Executive Compensation, David P. Poroch