MARTINGALE ASSET MANAGEMENT L P

Position in NWN — Northwest Natural Holding Co

CIK 936944 BOSTON, MA

Position in NWN

as of Mar 31, 2026 · filed May 13, 2026 Compact

Position Value

$2,652,271

+$837,077 QoQ

Shares Held

49,836

+28.3% QoQ

Ownership

0.118%

of shares outstanding

% of Portfolio

0.07%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

24 quarters on record

Voting authority Sole 72.91114856730074.ToString("F0")% Shared 0.ToString("F0")% None 27.08885143269925.ToString("F0")%

Utilities · as of Mar 31, 2026

MARTINGALE ASSET MANAGEMENT L P holds $28,110,070 across 10 Utilities - Regulated Gas names. NWN ranks #7 (9.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	OGS	ONE Gas, Inc.	72,815	$6,271,555
2	NJR	New Jersey Resources Corp	73,555	$4,039,640
3	SWX	Southwest Gas Holdings, Inc.	44,634	$3,878,694
4	BIPC	Brookfield Infrastructure Corp	86,570	$3,421,246
5	UGI	Ugi Corp /Pa/	90,972	$3,313,200
6	BKH	Black Hills Corp /Sd/	46,446	$3,223,816
7	NWN	Northwest Natural Holding Co This page	49,836	$2,652,271
8	NI	Nisource Inc.	12,700	$592,582

24 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$2,652,271	49,836	+28.3%	Shares	Sole	2026-05-13
2025-12-31	$1,815,194	38,836	-27.0%	Shares	Sole	2026-02-13
2025-09-30	$2,390,140	53,197	+4.1%	Shares	Sole	2025-11-13
2025-06-30	$2,030,723	51,126	+2.4%	Shares	Sole	2025-08-11
2025-03-31	$2,132,709	49,923	+2.2%	Shares	Sole	2025-05-14
2024-12-31	$1,931,833	48,833	-2.6%	Shares	Sole	2025-02-13
2024-09-30	$2,046,060	50,124	+131.7%	Shares	Sole	2024-11-14
2024-06-30	$781,095	21,631	+1.4%	Shares	Sole	2024-08-12
2024-03-31	$793,790	21,327	-47.5%	Shares	Sole	2024-05-14
2023-12-31	$1,583,222	40,658	+1.2%	Shares	Sole	2024-02-12
2023-09-30	$1,532,390	40,157	+2.6%	Shares	Sole	2023-11-14
2023-06-30	$1,685,665	39,156	+1.8%	Shares	Sole	2023-08-11
2023-03-31	$1,828,966	38,456	+0.3%	Shares	Sole	2023-05-12
2022-12-31	$1,825,313	38,355	+8.5%	Shares	Sole	2023-02-13
2022-09-30	$1,534,090	35,364	+9.8%	Shares	Sole	2022-11-14
2022-06-30	$1,710,510	32,213	+52.2%	Shares	Sole	2022-08-11
2022-03-31	$1,094,343	21,159	+1.9%	Shares	Sole	2022-05-12
2021-12-31	$1,012,624	20,759	+75.2%	Shares	Sole	2022-02-11
2021-09-30	$545,026	11,851	+196.3%	Shares	Sole	2021-11-12
2021-03-31	$215,800	4,000	-56.1%	Shares	Sole	2021-05-13
2020-12-31	$418,876	9,108	-73.3%	Shares	Sole	2021-02-10
2020-09-30	$1,548,162	34,108	-55.8%	Shares	Sole	2020-11-12
2020-06-30	$4,307,434	77,208	0.0%	Shares	Sole	2020-08-10
2020-03-31	$4,767,594	77,208	—	Shares	Sole	2020-05-11
No filing history on record for this holder in this stock.