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SOUTHERN CO (SO) S&P 500 XNYS ELECTRIC SERVICES Net insider selling (90d) Southern is one of the largest utilities in the US. The company serves 9 million customers with vertically integrated electric utilities in three states and natural gas distribution utilities in four states. It owns 46 gigawatts of rate-regulated generating capacity, primarily for serving customers in Georgia, Alabama, and Mississippi. Subsidiary Southern Power owns 13 gigawatts of natural gas generation and renewable energy across the US and sells the electricity primarily under long-term contracts.
Headquarters ATLANTA, GA
Employees 29,800
Listed 1949
Exchange XNYS https://www.southerncompany.com SEC filings for SO on EDGAR
90-Day SEC Filing Activity Form 4 transaction type Transactions Shares Total value Open-market sale 3 3,533 $332K Grant or award 12 6,866 Option exercise 2 1,379
SO Insider Transactions (Form 4) 111 134 Form 4 filings on record, the earliest from Oct 2, 2024, newest first. Filing history page 2 of 3.
Date Insider Transaction Security Shares Price Value Apr 1, 2026 SC Shantella E. Cooper Grant or award Deferred Stock Units Holding 464.2
Recent SO Form 8-K Filings 5
Recent SO Form 144 Notices of Proposed Sale 3 A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
Filed Filer Relationship Shares Market value Notice Aug 6, 2026 STERLING SPAINHOUR OFFICER 3,333 $313K View on EDGAR Aug 3, 2026 - -
What is the latest insider trade for SO? SOUTHERN CO (SO) had 15 insider filings in the last 90 days, with the most recent on 2026-08-07. The full record for SO runs to 134 Form 4 filings, the earliest from 2024-10-02. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying SO stock? No insider purchases of SO were filed in the last 90 days.
How many insiders are selling SO stock? 3 insider sales of SO were filed in the last 90 days, totaling $332K.
Where can I see SO SEC filings (Form 4, 10-K, 10-Q, 8-K)? This page tracks SO Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow SO insider buys? Create a free InsiderAlpha account and press Watch on this page to add SO to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Utilities Companies with Insider Activity Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Related Companies - Recent Insider Activity What is SEC Form 4? The filing insiders must submit within two business days of a trade, and how to read its transaction codes. Track SO insider activity as it files Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
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Market cap $101.52B
P/E ratio -
Dividend yield -
Average volume 5.90M
52 week high $100.84
52 week low $83.80
Today's high -
Today's low -
Open -
Volume -
Previous close $88.25
Shares outstanding 1.15B Market cap
$101.52B
29,800 employees
SO Insider Sentiment - Last 90 Days Share of open-market insider dollar volume that was buying versus selling, from SEC Form 4 filings.
0% Buying 100% Selling
0 insider purchases totaling $0 against 3 sales totaling $332K.
Most-Active SO Insiders - Last 90 Days 10 Tax withholding / forfeiture 1 316
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
Apr 1, 2026 JA Janaki Akella Grant or award Deferred Stock Units Holding 464.2 $96.94 $45K
Mar 30, 2026 KG Kimberly S, Greene - Officer Open-market sale Southern Company Common Stock 25,000 $96.67 $2.42M
Mar 19, 2026 CC Christopher Cummiskey - Officer Open-market sale Southern Company Common Stock 6,669 $96.55 $644K
Mar 18, 2026 SC Stan W. Connally - Officer Open-market sale Southern Company Common Stock 12,500 $97.13 $1.21M
Mar 8, 2026 SD Sloane N. Drake - Officer Tax withholding / forfeiture Southern Company Common Stock 633 $97.48 $62K
Mar 8, 2026 SD Sloane N. Drake - Officer Option exercise Performance Restricted Stock Units Holding 1,275 $0.00 -
Mar 8, 2026 SD Sloane N. Drake - Officer Option exercise Southern Company Common Stock 1,420 $0.00 -
Feb 24, 2026 MK Matthew M. Kim - Officer Open-market sale Southern Company Common Stock 5,123 $95.15 $487K
Feb 16, 2026 CW Christopher C. Womack - Officer Tax withholding / forfeiture Southern Company Common Stock 27,715 $90.86 $2.52M
Feb 16, 2026 CW Christopher C. Womack - Officer Tax withholding / forfeiture Southern Company Common Stock 6,772 $90.86 $615K
Feb 16, 2026 CW Christopher C. Womack - Officer Tax withholding / forfeiture Southern Company Common Stock 52,259 $90.86 $4.75M
Feb 16, 2026 CW Christopher C. Womack - Officer Option exercise Performance Restricted Stock Units 13,302 $0.00 -
Feb 11, 2026 MK Matthew M. Kim - Officer Grant or award Southern Company Common Stock 4,450 $0.00 -
Feb 11, 2026 MK Matthew M. Kim - Officer Tax withholding / forfeiture Southern Company Common Stock 2,014 $90.86 $183K
Feb 11, 2026 PC Pedro P. Cherry - Officer Grant or award Southern Company Common Stock 9,699 $0.00 -
Feb 11, 2026 PC Pedro P. Cherry - Officer Tax withholding / forfeiture Southern Company Common Stock 4,237 $90.86 $385K
Feb 11, 2026 PC Pedro P. Cherry - Officer Option exercise Southern Company Common Stock 406 $0.00 -
Feb 11, 2026 PC Pedro P. Cherry - Officer Tax withholding / forfeiture Southern Company Common Stock 196 $90.86 $18K
Feb 11, 2026 PC Pedro P. Cherry - Officer Option exercise Performance Restricted Stock Units 395 $0.00 -
Feb 11, 2026 DP David P. Poroch - Officer Grant or award Southern Company Common Stock 9,454 $0.00 -
Feb 11, 2026 DP David P. Poroch - Officer Tax withholding / forfeiture Southern Company Common Stock 2,914 $90.86 $265K
Feb 11, 2026 DP David P. Poroch - Officer Option exercise Southern Company Common Stock 568 $0.00 -
Feb 11, 2026 DP David P. Poroch - Officer Tax withholding / forfeiture Southern Company Common Stock 281 $90.86 $26K
Feb 11, 2026 DP David P. Poroch - Officer Option exercise Performance Restricted Stock Units 558 $0.00 -
Feb 11, 2026 PI Peter P. Sena III - Officer Grant or award Southern Company Common Stock 22,698 $0.00 -
Feb 11, 2026 PI Peter P. Sena III - Officer Tax withholding / forfeiture Southern Company Common Stock 10,067 $90.86 $915K
Feb 11, 2026 PI Peter P. Sena III - Officer Option exercise Southern Company Common Stock 2,311 $0.00 -
Feb 11, 2026 PI Peter P. Sena III - Officer Tax withholding / forfeiture Southern Company Common Stock 1,026 $90.86 $93K
Feb 11, 2026 PI Peter P. Sena III - Officer Option exercise Performance Restricted Stock Units 2,235 $0.00 -
Feb 11, 2026 IK Ii James Y. Kerr, - Officer Grant or award Southern Company Common Stock 44,522 $0.00 -
Feb 11, 2026 IK Ii James Y. Kerr, - Officer Tax withholding / forfeiture Southern Company Common Stock 19,831 $90.86 $1.80M
Feb 11, 2026 IK Ii James Y. Kerr, - Officer Option exercise Southern Company Common Stock 2,830 $0.00 -
Feb 11, 2026 IK Ii James Y. Kerr, - Officer Tax withholding / forfeiture Southern Company Common Stock 1,394 $90.86 $127K
Feb 11, 2026 IK Ii James Y. Kerr, - Officer Option exercise Performance Restricted Stock Units 2,737 $0.00 -
Feb 11, 2026 KG Kimberly S, Greene - Officer Grant or award Southern Company Common Stock 51,855 $0.00 -
Feb 11, 2026 KG Kimberly S, Greene - Officer Tax withholding / forfeiture Southern Company Common Stock 23,097 $90.86 $2.10M
Feb 11, 2026 KG Kimberly S, Greene - Officer Option exercise Southern Company Common Stock 3,350 $0.00 -
Feb 11, 2026 KG Kimberly S, Greene - Officer Tax withholding / forfeiture Southern Company Common Stock 1,651 $90.86 $150K
Feb 11, 2026 KG Kimberly S, Greene - Officer Option exercise Performance Restricted Stock Units 3,240 $0.00 -
Feb 11, 2026 SD Sloane N. Drake - Officer Grant or award Southern Company Common Stock 18,198 $0.00 -
Feb 11, 2026 SD Sloane N. Drake - Officer Tax withholding / forfeiture Southern Company Common Stock 8,107 $90.86 $737K
Feb 11, 2026 SD Sloane N. Drake - Officer Option exercise Southern Company Common Stock 1,340 $0.00 -
Feb 11, 2026 SD Sloane N. Drake - Officer Tax withholding / forfeiture Southern Company Common Stock 598 $90.86 $54K
Feb 11, 2026 SD Sloane N. Drake - Officer Option exercise Performance Restricted Stock Units 1,296 $0.00 -
Feb 11, 2026 JP James Jeffrey Peoples - Officer Tax withholding / forfeiture Southern Company Common Stock 18,526 $90.86 $1.68M
Feb 11, 2026 JP James Jeffrey Peoples - Officer Tax withholding / forfeiture Southern Company Common Stock 1,438 $90.86 $131K
Feb 11, 2026 JP James Jeffrey Peoples - Officer Option exercise Performance Restricted Stock Units 2,833 $0.00 -
Feb 11, 2026 BA Bryan D. Anderson - Officer Grant or award Southern Company Common Stock 26,326 $0.00 -
Feb 11, 2026 BA Bryan D. Anderson - Officer Tax withholding / forfeiture Southern Company Common Stock 13,190 $90.86 $1.20M
Feb 11, 2026 BA Bryan D. Anderson - Officer Option exercise Southern Company Common Stock 1,716 $0.00 -
Feb 11, 2026 BA Bryan D. Anderson - Officer Tax withholding / forfeiture Southern Company Common Stock 941 $90.86 $85K
Feb 11, 2026 BA Bryan D. Anderson - Officer Option exercise Performance Restricted Stock Units 1,660 $0.00 -
Feb 11, 2026 CC Christopher Cummiskey - Officer Tax withholding / forfeiture Southern Company Common Stock 9,880 $90.86 $898K
Feb 11, 2026 CC Christopher Cummiskey - Officer Tax withholding / forfeiture Southern Company Common Stock 738 $90.86 $67K
Feb 11, 2026 CC Christopher Cummiskey - Officer Option exercise Performance Restricted Stock Units 1,441 $0.00 -
Feb 11, 2026 SC Stan W. Connally - Officer Grant or award Southern Company Common Stock 41,031 $0.00 -
Feb 11, 2026 SC Stan W. Connally - Officer Tax withholding / forfeiture Southern Company Common Stock 18,199 $90.86 $1.65M
Feb 11, 2026 SC Stan W. Connally - Officer Option exercise Southern Company Common Stock 2,369 $0.00 -
Feb 11, 2026 SC Stan W. Connally - Officer Tax withholding / forfeiture Southern Company Common Stock 1,163 $90.86 $106K
Feb 11, 2026 SC Stan W. Connally - Officer Option exercise Performance Restricted Stock Units 2,291 $0.00 -
Feb 6, 2026 SD Sloane N. Drake - Officer Option exercise Southern Company Common Stock 3,698 $0.00 -
Feb 6, 2026 SD Sloane N. Drake - Officer Tax withholding / forfeiture Southern Company Common Stock 1,649 $90.80 $150K
Feb 6, 2026 SD Sloane N. Drake - Officer Option exercise Southern Co Restricted Stock Units 3,314 $0.00 -
Feb 5, 2026 DP David P. Poroch - Officer Option exercise Southern Company Common Stock 585 $0.00 -
Feb 5, 2026 DP David P. Poroch - Officer Tax withholding / forfeiture Southern Company Common Stock 160 $91.08 $15K
Feb 5, 2026 DP David P. Poroch - Officer Option exercise Southern Co Restricted Stock Units 566 $0.00 -
Feb 5, 2026 PC Pedro P. Cherry - Officer Option exercise Southern Company Common Stock 550 $0.00 -
Feb 5, 2026 PC Pedro P. Cherry - Officer Tax withholding / forfeiture Southern Company Common Stock 226 $91.08 $21K
Feb 5, 2026 PC Pedro P. Cherry - Officer Option exercise Southern Co Restricted Stock Units 531 $0.00 -
Feb 5, 2026 MK Matthew M. Kim - Officer Option exercise Southern Company Common Stock 292 $0.00 -
Feb 5, 2026 MK Matthew M. Kim - Officer Tax withholding / forfeiture Southern Company Common Stock 146 $91.08 $13K
Feb 5, 2026 MK Matthew M. Kim - Officer Option exercise Southern Co Restricted Stock Units 282 $0.00 -
Feb 1, 2026 SC Stan W. Connally - Officer Tax withholding / forfeiture Southern Company Common Stock 1,229 $89.31 $110K
Feb 1, 2026 SC Stan W. Connally - Officer Option exercise Performance Restricted Stock Units 2,364 $0.00 -
Jan 31, 2026 SC Stan W. Connally - Officer Option exercise Performance Restricted Stock Units 2,458 $0.00 -
Jan 31, 2026 SC Stan W. Connally - Officer Option exercise Southern Company Common Stock 2,634 $0.00 -
Jan 31, 2026 SC Stan W. Connally - Officer Tax withholding / forfeiture Southern Company Common Stock 1,107 $89.31 $99K
Feb 1, 2026 SC Stan W. Connally - Officer Option exercise Southern Company Common Stock 2,639 $0.00 -
Jan 31, 2026 CC Christopher Cummiskey - Officer Tax withholding / forfeiture Southern Company Common Stock 758 $89.31 $68K
Feb 1, 2026 CC Christopher Cummiskey - Officer Tax withholding / forfeiture Southern Company Common Stock 834 $89.31 $74K
Jan 31, 2026 CC Christopher Cummiskey - Officer Option exercise Performance Restricted Stock Units 1,674 $0.00 -
Jan 31, 2026 PC Pedro P. Cherry - Officer Option exercise Southern Company Common Stock 745 $0.00 -
Jan 31, 2026 PC Pedro P. Cherry - Officer Tax withholding / forfeiture Southern Company Common Stock 306 $89.31 $27K
Feb 1, 2026 PC Pedro P. Cherry - Officer Option exercise Southern Company Common Stock 751 $0.00 -
Feb 1, 2026 PC Pedro P. Cherry - Officer Tax withholding / forfeiture Southern Company Common Stock 366 $89.31 $33K
Jan 31, 2026 PC Pedro P. Cherry - Officer Option exercise Southern Co Restricted Stock Units 695 $0.00 -
Feb 1, 2026 PC Pedro P. Cherry - Officer Option exercise Southern Co Restricted Stock Units 672 $0.00 -
Jan 31, 2026 PI Peter P. Sena III - Officer Option exercise Southern Company Common Stock 1,754 $0.00 -
Jan 31, 2026 PI Peter P. Sena III - Officer Tax withholding / forfeiture Southern Company Common Stock 840 $89.31 $75K
Feb 1, 2026 PI Peter P. Sena III - Officer Option exercise Southern Company Common Stock 1,756 $0.00 -
Feb 1, 2026 PI Peter P. Sena III - Officer Tax withholding / forfeiture Southern Company Common Stock 780 $89.31 $70K
Feb 1, 2026 PI Peter P. Sena III - Officer Option exercise Southern Co Restricted Stock Units 1,573 $0.00 -
Jan 31, 2026 PI Peter P. Sena III - Officer Option exercise Southern Co Restricted Stock Units 1,636 $0.00 -
$TXNM
TXNM ENERGY INC
$PPL
PPL Corp
Matthew M. Kim - OfficerOpen-market sale$9K
Shantella E. Cooper
