MARTINGALE ASSET MANAGEMENT L P

Position in NRG — Nrg Energy, Inc.

CIK 936944 BOSTON, MA

Position in NRG

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$718,030

-$7,255,806 QoQ

Shares Held

4,916

-91.0% QoQ

Ownership

0.002%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#508

of 1,019 holders

Holding Since

Mar 2020

13 quarters on record

Voting authority Sole 87% Shared 0% None 13%

Utilities · as of Jun 30, 2026

MARTINGALE ASSET MANAGEMENT L P holds $8,894,388 across 4 Utilities - Independent Power Producers names. NRG ranks #4 (8.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CEG	Constellation Energy Corp	15,084	$3,746,413
2	VST	Vistra Corp.	18,801	$2,982,402
3	HNRG	Hallador Energy Co	83,240	$1,447,543
4	NRG	Nrg Energy, Inc. This page	4,916	$718,030

13 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$718,030	4,916	-91.0%	Shares	Sole	2026-08-13
2026-03-31	$7,973,836	54,563	-43.7%	Shares	Sole	2026-05-13
2025-12-31	$15,443,732	96,984	+50.9%	Shares	Sole	2026-02-13
2025-09-30	$10,408,526	64,270	-10.7%	Shares	Sole	2025-11-13
2025-06-30	$11,558,227	71,978	-0.5%	Shares	Sole	2025-08-11
2025-03-31	$6,904,049	72,324	+72.5%	Shares	Sole	2025-05-14
2024-12-31	$3,781,931	41,919	+312.2%	Shares	Sole	2025-02-13
2024-09-30	$926,395	10,169	-5.2%	Shares	Sole	2024-11-14
2022-09-30	$410,407	10,724	-91.8%	Shares	Sole	2022-11-14
2020-12-31	$4,927,273	131,219	-56.8%	Shares	Sole	2021-02-10
2020-09-30	$9,345,728	304,025	-8.9%	Shares	Sole	2020-11-12
2020-06-30	$10,868,495	333,799	-27.5%	Shares	Sole	2020-08-10
2020-03-31	$12,552,275	460,465	—	Shares	Sole	2020-05-11
No filing history on record for this holder in this stock.