ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Position in SO — Southern Co

CIK 1164508 BOSTON, MA

Position in SO

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$54,039,231

+$44,078,899 QoQ

Shares Held

559,876

+390.2% QoQ

Ownership

0.050%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

10 quarters on record

Voting authority Sole 73.592366881238.ToString("F0")% Shared 0.ToString("F0")% None 26.407633118762014.ToString("F0")%

Utilities · as of Mar 31, 2026

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $760,401,280 across 24 Utilities - Regulated Electric names. SO ranks #5 (7.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	PCG	PG&E Corp	11,496,508	$201,993,645
2	EIX	Edison International	1,468,184	$107,441,705
3	XEL	Xcel Energy Inc	936,583	$74,402,153
4	PPL	PPL Corp	1,884,790	$71,998,978
5	SO	Southern Co This page	559,876	$54,039,231
6	PEG	Public Service Enterprise Group Inc	636,413	$51,517,632
7	LNT	Alliant Energy Corp	452,952	$32,503,835
8	CNP	Centerpoint Energy Inc	676,653	$29,204,343

10 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$54,039,231	559,876	+390.2%	Shares	Defined	2026-05-14
2025-12-31	$9,960,332	114,224	-59.0%	Shares	Defined	2026-02-13
2025-09-30	$26,407,850	278,652	+4.6%	Shares	Defined	2025-11-13
2025-06-30	$24,459,838	266,360	+153.6%	Shares	Defined	2025-08-13
2025-03-31	$9,656,497	105,019	-10.9%	Shares	Defined	2025-05-14
2024-09-30	$10,634,476	117,925	+673.5%	Shares	Defined	2024-11-14
2024-03-31	$1,093,748	15,246	-5.2%	Shares	Defined	2024-05-15
2022-09-30	$1,094,120	16,090	+292.4%	Shares	Defined	2022-11-14
2021-03-31	$254,856	4,100	-96.0%	Shares	Defined	2021-05-14
2020-03-31	$5,576,420	103,000	—	Shares	Defined	2020-05-15
No filing history on record for this holder in this stock.