Company · NWN · CIK 1733998

Northwest Natural Holding Co (NWN) SEC filings and CIK.

NWN’s SEC Central Index Key (CIK) is 0001733998, or 1733998 without leading zeros. The SEC’s ticker file lists it as Northwest Natural Holding Co.

Ticker: NWN
CIK: 0001733998
Other tickers: None
Insider transactions, Q3 2026: 8

Insider trading

In Q3 2026, insiders at Northwest Natural Holding Co reported 8 non-derivative transactions on 8 Forms 3, 4 and 5, including 0 open-market purchases and 3 sales. See every NWN insider transaction →

Recent filings we observed

No filings for this CIK appear in our current observation window. The full history is available from the filings endpoint below and on SEC.gov.

Get NWN SEC data through the API

Filing history

curl "https://sec-api.dev/api/v1/filings?cik=1733998&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Company profile

curl "https://sec-api.dev/api/v1/companies/1733998" \
  -H "Authorization: Bearer $SEC_API_KEY"

Reported XBRL facts

curl "https://sec-api.dev/api/v1/facts/1733998?taxonomy=us-gaap&concept=Revenues&limit=10" \
  -H "Authorization: Bearer $SEC_API_KEY"

Ticker to CIK API · SEC filings API · Northwest Natural Holding Co on SEC.gov

Questions

What is NWN’s CIK number?

NWN’s SEC Central Index Key (CIK) is 0001733998, or 1733998 without leading zeros. The SEC’s ticker file lists it as Northwest Natural Holding Co.

How do I find Northwest Natural Holding Co’s 10-K?

Request /api/v1/filings?cik=1733998&form=10-K, or open the company’s EDGAR page and filter by 10-K. Foreign issuers file 20-F or 40-F instead.

Ticker and CIK: SEC company_tickers.json, cached 2026-11-02. Tickers can move between entities; the CIK identifies the filer.

Plain-text version for agents and LLMs: /companies/nwn.md

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