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MARTINGALE ASSET MANAGEMENT L P

Position in SO — Southern Co

CIK 936944 BOSTON, MA

Position in SO

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$1,016,344
+$300,263 QoQ
Shares Held
10,619
+43.1% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#1,007
of 2,360 holders
Holding Since
Mar 2020
16 quarters on record
Voting authority Sole 89% Shared 0% None 11%

Common Shares in SO Over Time

Shares Held

Position Value (USD)

Position in Utilities - Regulated Electric

Utilities · as of Jun 30, 2026

MARTINGALE ASSET MANAGEMENT L P holds $222,459,976 across 20 Utilities - Regulated Electric names. SO ranks #16 (0.5% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in SO

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16 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,016,344 10,619
2026-03-31 $716,081 7,419
2023-06-30 $6,867,218 97,754
2023-03-31 $12,751,926 183,270
2022-12-31 $19,061,185 266,926
2022-09-30 $18,818,116 276,737
2022-06-30 $19,962,307 279,937
2022-03-31 $23,510,859 324,243
2021-12-31 $23,230,514 338,736
2021-09-30 $20,873,169 336,827
2021-06-30 $23,866,777 394,427
2021-03-31 $23,373,838 376,027
2020-12-31 $20,617,566 335,627
2020-09-30 $18,878,156 348,177
2020-06-30 $18,374,447 354,377
2020-03-31 $19,375,514 357,878