Marshall Wace’s Southern Company SO Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$225M Buy
2,334,078
+1,613,556
+224% +$149M 0.22% 65
2025
Q4
$62.8M Sell
720,522
-1,330,204
-65% -$121M 0.06% 293
2025
Q3
$194M Sell
2,050,726
-970,169
-32% -$90.6M 0.2% 75
2025
Q2
$277M Sell
3,020,895
-667,542
-18% -$60M 0.31% 46
2025
Q1
$339M Sell
3,688,437
-634,494
-15% -$54.9M 0.43% 35
2024
Q4
$356M Buy
4,322,931
+3,307,527
+326% +$290M 0.43% 25
2024
Q3
$91.6M Buy
+1,015,404
New +$86.7M 0.11% 156
2024
Q2
Sell
-3,439
Closed -$247K 2927
2024
Q1
$247K Sell
3,439
-1,574,752
-100% -$109M ﹤0.01% 2173
2023
Q4
$111M Buy
1,578,191
+1,561,891
+9,582% +$107M 0.19% 103
2023
Q3
$1.05M Buy
+16,300
New +$1.13M ﹤0.01% 1483
2023
Q2
Sell
-12,048
Closed -$838K 2934
2023
Q1
$838K Sell
12,048
-1,506,542
-99% -$101M ﹤0.01% 1897
2022
Q4
$108M Buy
1,518,590
+635,046
+72% +$42.5M 0.24% 85
2022
Q3
$60.1M Buy
883,544
+767,544
+662% +$58.1M 0.13% 158
2022
Q2
$8.27M Buy
+116,000
New +$8.52M 0.02% 1002
2022
Q1
Sell
-129,289
Closed -$8.87M 3968
2021
Q4
$8.87M Buy
129,289
+3,532
+3% +$225K 0.02% 946
2021
Q3
$7.79M Sell
125,757
-400,480
-76% -$25.8M 0.03% 706
2021
Q2
$31.8M Buy
526,237
+398,866
+313% +$25.5M 0.14% 146
2021
Q1
$7.92M Buy
127,371
+112,437
+753% +$6.73M 0.04% 573
2020
Q4
$918K Buy
+14,934
New +$898K 0.01% 1247
2020
Q2
Sell
-2,886
Closed -$156K 1911
2020
Q1
$156K Buy
+2,886
New +$183K ﹤0.01% 1233
2019
Q4
Sell
-25,592
Closed -$1.58M 2029
2019
Q3
$1.58M Buy
+25,592
New +$1.48M 0.01% 826
2017
Q4
Sell
-25,031
Closed -$1.23M 476
2017
Q3
$1.23M Buy
+25,031
New +$1.21M 0.06% 205
2017
Q2
Sell
-74,822
Closed -$3.74M 383
2017
Q1
$3.74M Buy
+74,822
New +$3.7M 0.18% 99

Other funds holding SO

Marshall Wace's SO Position: Q1 2026 in Review

Marshall Wace increased its Southern Company (SO) stake by 224% in Q1 2026, buying an estimated $149M and bringing the position to 2,334,078 shares worth $225M. The position accounts for 0.22% of the portfolio, ranked #65.

Marshall Wace first reported a position in SO in Q1 2017 and has held it in 23 quarters since. The position peaked at $356M in Q4 2024. 2,344 funds tracked by Wall St. Rank hold SO as of Q1 2026.

  • Marshall Wace held 2,334,078 shares of Southern Company worth $225M as of Q1 2026.
  • Marshall Wace bought 1,613,556 Southern Company shares in Q1 2026, an estimated $149M.
  • Southern Company made up 0.22% of Marshall Wace's portfolio in Q1 2026, its #65 holding.
  • Marshall Wace first reported a position in Southern Company in Q1 2017 and has held it in 23 quarters since.
  • Marshall Wace's Southern Company position peaked at $356M in Q4 2024.
  • 2,344 funds tracked by Wall St. Rank held Southern Company as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.