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ADAGE CAPITAL PARTNERS GP, L.L.C.

Position in SO — Southern Co

CIK 1165408 Boston, MA

Position in SO

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$114,559,588
+$86,100,157 QoQ
Shares Held
1,186,900
+295.2% QoQ
Ownership
0.105%
of shares outstanding
% of Portfolio
0.18%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
23 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in SO Over Time

Shares Held

Position Value (USD)

Position in Utilities - Regulated Electric

Utilities · as of Mar 31, 2026

ADAGE CAPITAL PARTNERS GP, L.L.C. holds $951,172,436 across 19 Utilities - Regulated Electric names. SO ranks #2 (12.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 SO
Southern Co
This page
1,186,900 $114,559,588

All Filings in SO

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23 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $114,559,588 1,186,900
2025-09-30 $28,459,431 300,300
2025-06-30 $92,436,078 1,006,600
2025-03-31 $124,058,940 1,349,200
2024-12-31 $49,284,984 598,700
2024-09-30 $32,077,026 355,700
2024-06-30 $50,327,416 648,800
2024-03-31 $76,740,278 1,069,700
2023-12-31 $100,580,128 1,434,400
2023-09-30 $96,063,896 1,484,300
2023-06-30 $114,771,921 1,633,764
2023-03-31 $127,850,745 1,837,464
2022-12-31 $95,139,543 1,332,300
2022-09-30 $92,344,000 1,358,000
2022-06-30 $48,604,896 681,600
2022-03-31 $40,366,317 556,700
2021-12-31 $63,731,394 929,300
2021-09-30 $63,494,462 1,024,600
2021-06-30 $24,863,559 410,900
2021-03-31 $26,082,336 419,600
2020-12-31 $72,284,681 1,176,700
2020-06-30 $13,155,278 253,718
2020-03-31 $65,055,598 1,201,618