Northwest Natural Holding Co — Investor Relations & Filings
Northwest Natural Holding Co. is a holding company with a history of over 165 years. It owns several subsidiaries that provide essential utility services. The company's primary operations include natural gas distribution to residential, commercial, and industrial customers through its utilities, NW Natural Gas Company and SiEnergy. It also provides water and wastewater services through its NW Natural Water subsidiary. Additionally, the company is involved in the renewable fuel sector via NW Natural Renewables. Across its businesses, the organization emphasizes safety, environmental stewardship, and the energy transition.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| ARS - Northwest Natural Holding Co (0001733998) (Filer) | 2026-04-17 | English | |
| DEF 14A - Northwest Natural Holding Co (0001733998) (Filer) | 2026-04-17 | English | |
| SCHEDULE 13G/A - Northwest Natural Holding Co (0001733998) (Subject) | 2026-03-27 | English | |
| 4 - Northwest Natural Holding Co (0001733998) (Issuer) | 2026-03-25 | English | |
| 144 - Northwest Natural Holding Co (0001733998) (Subject) | 2026-03-23 | English | |
| 144 - Northwest Natural Holding Co (0001733998) (Subject) | 2026-03-23 | English |
Browse filings by year
9 yearsMarket data
Market data not available
Price history
Peer group · Manufacture of gas; distribution of gaseous fuels through mains
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Anhui Province Natural Gas Development Co.,Ltd.
Operates natural gas pipelines and distribution networks fo…
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603689 | CN | Electricity, gas, steam and air… |
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APA GROUP
Operates gas pipelines, electricity transmission, and renew…
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APA | AU | Electricity, gas, steam and air… |
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APA INFRASTRUCTURE LIMITED
Operates gas pipelines, storage, and renewable energy infra…
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AP2 | AU | Electricity, gas, steam and air… |
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Ascopiave
A natural gas distributor also active in renewables, heat, …
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ASC | IT | Electricity, gas, steam and air… |
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ATMOS ENERGY CORP
A natural gas-only company engaged in regulated distributio…
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ATO | US | Electricity, gas, steam and air… |
Northwest Natural Holding Co via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/31756/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=31756 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=31756 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=31756 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 31756}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for Northwest Natural Holding Co (id: 31756)"
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