Northwest Natural Holding (NWN) SEC Filings: History & Chart

Northwest Natural Holding Company (NWN)NWNNorthwest Natural Holding Company

About Northwest Natural Holding Company

Northwest Natural Holding Company (NWN) operates primarily through its subsidiary, Northwest Natural Gas Company, delivering regulated natural gas to a diverse clientele including residential, commercial, industrial, and transportation customers across Oregon and Southwest Washington. Beyond its core distribution business, the company manages the Mist gas storage facility, which holds 5.7 billion cubic feet and is leased to other utilities and third-party energy marketers. It also provides natural gas asset management solutions and maintains an appliance retail outlet. NWN's strategic investments extend to broader gas storage activities, water services, non-regulated renewable natural gas ventures, and other diversified interests. The company currently supplies natural gas to approximately 786,000 meters within its service territories in Oregon and southwest Washington. Additionally, its water operations cater to about 80,000 individuals through roughly 33,000 water and wastewater connections located in the Pacific Northwest and Texas. Founded in 1859, Northwest Natural Holding Company is headquartered in Portland, Oregon.

Portland, OR

1,619 employees

www.nwnaturalholdings.com

Utilities / Regulated Gas

Sector: Utilities
Industry: Regulated Gas
CEO: Justin Palfreyman

View full financials

Form	Filing Date	Accepted	Document
4	Aug 7, 2026	Aug 7, 2026	View filing
4	Aug 7, 2026	Aug 7, 2026	View filing
4	Aug 7, 2026	Aug 7, 2026	View filing
10-Q	Aug 5, 2026	Aug 5, 2026	View filing
8-K	Aug 5, 2026	Aug 4, 2026	View filing
8-K	Jul 31, 2026	Jul 31, 2026	View filing
4	Jul 21, 2026	Jul 21, 2026	View filing
4	Jun 29, 2026	Jun 29, 2026	View filing
11-K	Jun 25, 2026	Jun 25, 2026	View filing
8-K	Jun 5, 2026	Jun 4, 2026	View filing
8-K	Jun 1, 2026	Jun 1, 2026	View filing
4	May 29, 2026	May 29, 2026	View filing
4	May 29, 2026	May 29, 2026	View filing
4	May 29, 2026	May 29, 2026	View filing
4	May 29, 2026	May 29, 2026	View filing
4	May 29, 2026	May 29, 2026	View filing
4	May 13, 2026	May 13, 2026	View filing
SC 13G	May 12, 2026	May 12, 2026	View filing
4	May 11, 2026	May 11, 2026	View filing
4	May 11, 2026	May 11, 2026	View filing
4	May 11, 2026	May 11, 2026	View filing
4	May 11, 2026	May 11, 2026	View filing
4	May 7, 2026	May 7, 2026	View filing
10-Q	May 6, 2026	May 6, 2026	View filing
8-K	May 6, 2026	May 5, 2026	View filing
SC 13G	Apr 30, 2026	Apr 30, 2026	View filing
SC 13G	Apr 29, 2026	Apr 29, 2026	View filing
SC 13G/A	Apr 24, 2026	Apr 24, 2026	View filing
ARS	Apr 17, 2026	Apr 17, 2026	View filing
DEF 14A	Apr 17, 2026	Apr 17, 2026	View filing

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