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Calamos Advisors LLC

Position in SO — Southern Co

CIK 1316507 NAPERVILLE, IL

Position in SO

as of Jun 30, 2026 · filed Jul 31, 2026
Position Value
$18,479,399
-$129,099,431 QoQ
Shares Held
193,077
-92.3% QoQ
Ownership
0.017%
of shares outstanding
% of Portfolio
0.11%
of 13F equity value
Holder Rank
#228
of 2,359 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in SO Over Time

Shares Held

Position Value (USD)

Position in Utilities - Regulated Electric

Utilities · as of Jun 30, 2026

Calamos Advisors LLC holds $216,689,833 across 13 Utilities - Regulated Electric names. SO ranks #5 (8.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 SO
Southern Co
This page
193,077 $18,479,399

All Filings in SO

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28 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $18,479,399 193,077
2026-03-31 SOMN $106,980,105 2,081,325
2026-03-31 $40,598,725 420,625
2025-12-31 SOMN $125,180,154 2,485,706
2025-12-31 $17,147,618 196,647
2025-09-30 $19,361,037 204,295
2025-06-30 $18,810,365 204,839
2025-03-31 $18,808,280 204,549
2024-12-31 $17,441,879 211,879
2024-09-30 $18,923,190 209,838
2024-06-30 $16,037,364 206,747
2024-03-31 $15,351,714 213,991
2023-12-31 $15,310,631 218,349
2023-09-30 $14,045,987 217,027
2023-06-30 $15,253,382 217,130
2023-03-31 $15,107,905 217,130
2022-12-31 $17,452,675 244,401
2022-09-30 $19,552,516 287,537
2022-06-30 $20,504,263 287,537
2022-03-31 $20,295,403 279,898
2021-12-31 $16,619,951 242,344
2021-09-30 $14,449,111 233,163
2021-06-30 $12,865,878 212,624
2021-03-31 $10,200,020 164,093
2020-12-31 $9,768,967 159,026
2020-09-30 $9,009,683 166,169
2020-06-30 $9,389,983 181,099
2020-03-31 $10,422,166 192,504