ATLAS / Macro Radar / Reporting / SO

SOUTHERN CO (SO) reporting calendar

SOUTHERN CO files periodic reports with the SEC as SO on NYSE. Atlas tracks 22 filed reports for this issuer, each linked to its original EDGAR accession.

Next window
21 Jul 2026 – 10 Aug 2026
Latest report
10-Q
Period ended
31 Mar 2026
Filed
30 Apr 2026
Reports on record
22

How this window is derived. Derived from this issuer's own filing history: 9 periods at a median 91-day cadence, filed a median 31 days after period end. The SEC does not publish forward reporting dates and Atlas does not estimate one.

Open SO market profile Latest filing on SEC EDGAR ↗ Electric Services reporting datesAll NYSE reporting dates

Filed periodic reports

FormPeriod endedFiledLagSEC accession
10-Q31 Mar 202630 Apr 202630 days0000092122-26-000034
10-K31 Dec 202519 Feb 202650 days0000092122-26-000006
10-Q30 Sep 202530 Oct 202530 days0000092122-25-000084
10-Q30 Jun 202531 Jul 202531 days0000092122-25-000076
10-Q31 Mar 20251 May 202531 days0000092122-25-000042
10-K31 Dec 202420 Feb 202551 days0000092122-25-000018
10-Q30 Sep 202431 Oct 202431 days0000092122-24-000089
10-Q30 Jun 20241 Aug 202432 days0000092122-24-000075
10-Q31 Mar 20242 May 202432 days0000092122-24-000042
10-K31 Dec 202315 Feb 202446 days0000092122-24-000009
10-Q30 Sep 20232 Nov 202333 days0000092122-23-000101
10-Q30 Jun 20233 Aug 202334 days0000092122-23-000070
10-Q31 Mar 202327 Apr 202327 days0000092122-23-000028
10-K31 Dec 202216 Feb 202347 days0000092122-23-000012
10-Q30 Sep 202227 Oct 202227 days0000092122-22-000064
10-Q30 Jun 202228 Jul 202228 days0000092122-22-000039
10-Q31 Mar 202228 Apr 202228 days0000092122-22-000014
10-K31 Dec 202117 Feb 202248 days0000092122-22-000003
10-Q30 Sep 20214 Nov 202135 days0000092122-21-000092
10-Q30 Jun 202129 Jul 202129 days0000092122-21-000064
10-Q31 Mar 202129 Apr 202129 days0000092122-21-000037
10-K31 Dec 202018 Feb 202149 days0000092122-21-000006

Source: SEC EDGAR company submissions for CIK 0000092122. Atlas publishes filed facts only. The SEC does not publish forward reporting dates, so no announced future date is claimed here.