Northwest Natural Holding Co.

NWN·NYSE·$54.53Share Price as of 11/2·$2BMarket Cap as of 11/2

Financials

10-QQ2 ended 06/30/2608/05/26 10-QQ1 ended 03/31/2605/06/26 10-KFY 202502/27/26 10-QQ3 ended 09/30/2511/05/25 10-QQ2 ended 06/30/2508/05/25

Disclosures

8-KCurrent report09/23/26 8-KCurrent report09/03/26 8-KCurrent report08/05/26 8-KCurrent report07/31/26 8-KCurrent report06/05/26

Prospectuses and Registrations

S-8Registration of securities for employees02/27/26 424B5Prospectus supplement03/14/25 424B3Prospectus03/12/25 FWPFree writing prospectus03/12/25 424B5Prospectus supplement08/09/24

Proxies

DEF 14ADefinitive proxy04/17/26 DEF 14ADefinitive proxy04/10/25 DEF 14ADefinitive proxy04/11/24 DEF 14ADefinitive proxy04/13/23 DEF 14ADefinitive proxy04/14/22

Ownership

Form 4Insider transaction10/21/26 144Proposed sale of securities10/19/26 Form 4Insider transaction10/02/26 Form 4Insider transaction09/21/26 Form 4Insider transaction09/03/26

Other

11-KEmployee stock purchase plan report06/25/26 ARSAnnual report to shareholders04/17/26 11-KEmployee stock purchase plan report06/26/25 ARSAnnual report to shareholders04/10/25 305B2305B203/12/25