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These shares were sold in multiple transactions at prices ranging from $47.17 to $47.38, inclusive.  The reporting person undertakes to provide to Southern Company, any security holder of Southern Company, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1) to this Form 4."}],"balance_after":9677,"source":{"system":"sec-edgar","filing":"0001209191-18-061350","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/92122/000120919118061350/doc4.xml","form_type":"4"}},{"id":3742853,"issuer":{"id":1308,"kind":"organization","name":"SOUTHERN CO","symbol":"SO"},"owners":[{"id":83151,"kind":"person","name":"Wilson Anthony L","position":1,"cik":"0001538652","reported_name":"Wilson Anthony L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres & CEO, Mississippi Power"}}],"security":"Southern Company Common Stock","published_at":"2018-12-06T22:29:47.000Z","date":"2018-12-04","kind":"exercise","acquired":true,"shares":18127,"price":37.97,"value":688282.19,"ownership":{"direct":true},"balance_after":44738,"source":{"system":"sec-edgar","filing":"0001209191-18-061350","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/92122/000120919118061350/doc4.xml","form_type":"4"}},{"id":3742852,"issuer":{"id":1308,"kind":"organization","name":"SOUTHERN CO","symbol":"SO"},"owners":[{"id":83151,"kind":"person","name":"Wilson Anthony L","position":1,"cik":"0001538652","reported_name":"Wilson Anthony L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Pres & CEO, Mississippi Power"}}],"security":"Southern Company Common Stock","published_at":"2018-12-06T22:29:47.000Z","date":"2018-12-04","kind":"exercise","acquired":true,"shares":16934,"price":31.17,"value":527832.78,"ownership":{"direct":true},"balance_after":26611,"source":{"system":"sec-edgar","filing":"0001209191-18-061350","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/92122/000120919118061350/doc4.xml","form_type":"4"}},{"id":4061702,"issuer":{"id":1308,"kind":"organization","name":"SOUTHERN CO","symbol":"SO"},"owners":[{"id":83151,"kind":"person","name":"Wilson Anthony L","position":1,"cik":"0001538652","reported_name":"Wilson Anthony L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Mississippi Power"}}],"security":"Performance Restricted Stock Units","published_at":"2018-02-14T22:47:34.000Z","date":"2018-02-12","kind":"exercise","acquired":false,"shares":1604,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F4","text":"Represents performance restricted stock units granted on February 13, 2017. The Compensation and Management Succession Committee certified performance on February 12, 2018 and the first 1/3 vested. The remaining award will vest 1/3 in 2019 and 1/3 in 2020. Each performance 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."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Represents performance restricted stock units granted on February 13, 2017. The Compensation and Management Succession Committee certified performance on February 12, 2018 and the first 1/3 vested. The remaining award will vest 1/3 in 2019 and 1/3 in 2020. Each performance 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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Represents performance restricted stock units granted on February 13, 2017. The Compensation and Management Succession Committee certified performance on February 12, 2018 and the first 1/3 vested. The remaining award will vest 1/3 in 2019 and 1/3 in 2020. Each performance 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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"Represents performance restricted stock units granted on February 13, 2017. The Compensation and Management Succession Committee certified performance on February 12, 2018 and the first 1/3 vested. The remaining award will vest 1/3 in 2019 and 1/3 in 2020. Each performance 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."}],"balance_after":3208,"derivative":{"exercise_price":0,"underlying":"Southern Company Common Stock","underlying_shares":1604},"source":{"system":"sec-edgar","filing":"0001209191-18-010056","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/92122/000120919118010056/doc4.xml","form_type":"4"}},{"id":4061701,"issuer":{"id":1308,"kind":"organization","name":"SOUTHERN CO","symbol":"SO"},"owners":[{"id":83151,"kind":"person","name":"Wilson Anthony L","position":1,"cik":"0001538652","reported_name":"Wilson Anthony L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Mississippi Power"}}],"security":"Southern Company Common Stock","published_at":"2018-02-14T22:47:34.000Z","date":"2018-02-12","kind":"tax_withholding","acquired":false,"shares":1868,"price":44.68,"value":83462.24,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F2","text":"Shares withheld to satisfy required state and federal tax withholding requirements."}],"balance_after":9677,"source":{"system":"sec-edgar","filing":"0001209191-18-010056","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/92122/000120919118010056/doc4.xml","form_type":"4"}},{"id":4061700,"issuer":{"id":1308,"kind":"organization","name":"SOUTHERN CO","symbol":"SO"},"owners":[{"id":83151,"kind":"person","name":"Wilson Anthony L","position":1,"cik":"0001538652","reported_name":"Wilson Anthony L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Mississippi Power"}}],"security":"Southern Company Common Stock","published_at":"2018-02-14T22:47:34.000Z","date":"2018-02-12","kind":"grant","acquired":true,"shares":6405,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F3","text":"Shares acquired upon vesting of performance share units under Company's Performance Share Program for the 2015-2017 award. The Compensation and Management Succession Committee certified performance on February 12, 2018. Includes accrued dividend equivalent units."}],"balance_after":11545,"source":{"system":"sec-edgar","filing":"0001209191-18-010056","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/92122/000120919118010056/doc4.xml","form_type":"4"}},{"id":4061699,"issuer":{"id":1308,"kind":"organization","name":"SOUTHERN CO","symbol":"SO"},"owners":[{"id":83151,"kind":"person","name":"Wilson Anthony L","position":1,"cik":"0001538652","reported_name":"Wilson Anthony L","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"President, Mississippi Power"}}],"security":"Southern Company Common Stock","published_at":"2018-02-14T22:47:34.000Z","date":"2018-02-12","kind":"tax_withholding","acquired":false,"shares":582,"price":44.68,"value":26003.76,"ownership":{"direct":true},"footnotes":[{"field":"security","element":"securityTitle","label":"F2","text":"Shares withheld to satisfy required state and federal tax withholding requirements."}],"balance_after":5140,"source":{"system":"sec-edgar","filing":"0001209191-18-010056","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/92122/000120919118010056/doc4.xml","form_type":"4"}}],"next_cursor":"2018-02-14T22:47:34.000000Z,4061699"}