Calamos Advisors LLC

SEC CIK: 0001316507
Latest filing: Jul 31, 2026

SEC filings (opens in a new tab)

SOMN holding history

Southern Co in every 13F filed by Calamos Advisors LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

SOMN overview All 13F holders of SOMN Full Q2 2026 holdings

Shares (Q2 2026): 2,115,625
Value: $105.2M
% of portfolio: 0.4%
Quarters held: 3; Since Q4 2025

Holdings of SOMN by Calamos Advisors LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	2,115,625	$105.2M	0.4%	+34,300+1.6%	Added	Holders
Q1 2026	2,081,325	$107.0M	0.4%	−404,381−16.3%	Reduced	Holders
Q4 2025	2,485,706	$125.2M	0.5%	+2,485,706	New	Holders