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MARSHALL WACE, LLP

Position in SO — Southern Co

CIK 1318757 LONDON, X0

Position in SO

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$225,285,207
+$162,455,690 QoQ
Shares Held
2,334,078
+223.9% QoQ
Ownership
0.207%
of shares outstanding
% of Portfolio
0.32%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
19 quarters on record
Voting authority Sole 0.ToString("F0")% Shared 100.ToString("F0")% None 0.ToString("F0")%

Common Shares in SO Over Time

Shares Held

Position Value (USD)

Derivatives in SO

reported options exposure · as of Mar 31, 2026
CallValue
$9,652
CallShares
100
PutValue
$0
PutShares
0

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Utilities - Regulated Electric

Utilities · as of Mar 31, 2026

MARSHALL WACE, LLP holds $970,362,311 across 24 Utilities - Regulated Electric names. SO ranks #1 (23.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 SO
Southern Co
This page
2,334,078 $225,285,207

All Filings in SO

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22 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $225,285,207 2,334,078
2026-03-31 $9,652 100
2025-12-31 $62,829,517 720,522
2025-12-31 $122,080 1,400
2025-09-30 $47,385 500
2025-09-30 $194,347,302 2,050,726
2025-06-30 $277,408,786 3,020,895
2025-03-31 $339,151,781 3,688,437
2024-12-31 $355,863,677 4,322,931
2024-09-30 $91,569,132 1,015,404
2024-03-31 $246,713 3,439
2023-12-31 $110,662,752 1,578,191
2023-09-30 $1,054,936 16,300
2023-03-31 $838,299 12,048
2022-12-31 $108,442,511 1,518,590
2022-09-30 $60,080,992 883,544
2022-06-30 $8,271,960 116,000
2021-12-31 $8,866,638 129,289
2021-09-30 $7,793,161 125,757
2021-03-31 $7,917,381 127,371
2020-12-31 $917,395 14,934
2020-03-31 $156,248 2,886