Southern Company Officer Peter P. Sena III Sells $378K in Common Stock Under Rule 10b5-1 Plan
SOUTHERN CO
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Filing Summary
Southern Co ($SO) Insider: Peter P. Sena III (Chairman, President & CEO, SNC) Action: Open Market Sale Details: 4,266 shares @ $88.59 ($377,924.94 total value) Shares Held Post-Transaction: 26,935 shares Filing Date: 2026-09-04 | Rule 10b5-1: Yes
Comprehensive Analysis
Executive Summary
On September 3, 2026, Peter P. Sena III, Chairman, President & CEO of Southern Nuclear Operating Company (SNC), executed an open-market sale of 4,266 shares of The Southern Company ($SO) common stock at an average price of $88.59 per share, totaling approximately $377,925.
Transaction Breakdown
- Security: Southern Company Common Stock
- Transaction Code:
S(Open market sale) - Volume: 4,266 shares
- Price: $88.59 per share
- Total Gross Proceeds: $377,924.94
- Remaining Direct Ownership: 26,935 shares
- Trading Plan: Executed under a Rule 10b5-1 trading arrangement (indicated by affirmative flag).
Impact & Market Context
The transaction reduced Sena's direct holdings by approximately 13.7%. Because the sale was executed pursuant to a pre-arranged Rule 10b5-1 plan and represents a moderate dollar amount, it carries low overall market significance and reflects standard executive portfolio diversification rather than a discretionary sentiment shift.
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