SOUTHERN CO|4Feb 3, 6:17 PM ET

Peoples James Jeffrey 4

4 · SOUTHERN CO · Filed Feb 3, 2026

AI-generated summary of this filing

Updated Feb 3, 2026

Southern Co (SO) CEO James Peoples Receives Award; Shares Withheld

What Happened

James Peoples, Chairman, President & CEO of Southern Co (SO), had performance-based restricted stock units (RSUs) vest at the end of January/early February 2026. A total of 6,611 shares converted from RSUs into common stock (3,380 on 2026-01-31 and 3,231 on 2026-02-01). To satisfy required tax withholding, the company withheld 1,420 shares on 1/31 and 1,493 shares on 2/1 at $89.31 per share, totaling $260,160. After withholding, Peoples received a net 3,698 shares.

Key Details

Transaction dates: 2026-01-31 and 2026-02-01; filing date: 2026-02-03 (filing appears timely).
Gross shares vesting: 6,611 (3,380 + 3,231). Shares withheld for taxes: 2,913 (1,420 + 1,493) at $89.31/share. Total withholding value: $260,160.
Net shares delivered to insider: 3,698.
Footnotes: Vesting represents (a) the second 1/3 of performance RSUs granted 1/31/2024 (includes 226 dividend-equivalent units) and (b) the final 1/3 of performance RSUs granted 2/1/2023 (includes 336 dividend-equivalent units). Withholdings were used to satisfy federal/state tax obligations.
Transaction codes: M = conversion of derivative security (RSU settlement); F = shares withheld for tax payment.
The filing does not list the insider’s total shares owned following these transactions in the provided summary.

Context

These transactions are compensation-related vesting events (not open-market purchases or discretionary sales). The company used a net-share (share-withholding) method to satisfy tax withholding—common for RSU settlements—so some shares were surrendered to cover taxes rather than sold on the open market.
Such routine vestings reflect executive compensation realization, not necessarily a buy/sell signal about the stock’s outlook.

Form 4

Period: 2026-01-31

Chairman, President & CEO, APC

Transactions

Exercise/Conversion
Southern Company Common Stock
[F1]
2026-01-31+3,380→ 17,087 total
Tax Payment
Southern Company Common Stock
[F2]
2026-01-31$89.31/sh−1,420$126,820→ 15,667 total
Exercise/Conversion
Southern Company Common Stock
[F3]
2026-02-01+3,231→ 18,898 total
Tax Payment
Southern Company Common Stock
[F2]
2026-02-01$89.31/sh−1,493$133,340→ 17,405 total
Exercise/Conversion
Southern Co Restricted Stock Units
[F4]
2026-02-01−2,895→ 0 total
Exercise: $0.00→ Southern Company Common Stock (2,895 underlying)
Exercise/Conversion
Performance Restricted Stock Units
[F5]
2026-01-31−3,154→ 3,155 total
Exercise: $0.00→ Southern Company Common Stock (3,154 underlying)

Holdings

Footnotes (5)

[F1]Shares acquired upon vesting of second 1/3 of performance restricted stock units granted on January 31, 2024. Includes 226 accrued dividend equivalent units.
[F2]Shares withheld to satisfy required state and federal tax withholding requirements.
[F3]Shares acquired upon vesting of final 1/3 of performance restricted stock units granted on February 1, 2023. Includes 336 accrued dividend equivalent units.
[F4]Represents final 1/3 of performance restricted stock units granted on February 1, 2023. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.
[F5]Represents second 1/3 of performance restricted stock units granted on January 31, 2024. The remaining award will vest in 2027. Each restricted stock unit represents the right to receive, at settlement, one share of common stock. Additional units will be acquired with deemed dividends. Shares will be withheld upon vesting to satisfy tax requirements.

Signature

/s/ Brittney Anderson, Attorney-in-Fact for J. Jeffrey Peoples|2026-02-03

1 file