v3.26.1
Fair Value Measurements (Tables)
 12 Months Ended
Dec. 31, 2025
EBP 008  
EBP, Investment, Fair Value and NAV [Line Items]  
EBP, Investment, Fair Value and NAV
The following tables set forth the fair value of the Plan's assets at fair value, by level and investment asset class:

As of December 31, 2025
AssetLevel 1Level 2Level 3
Non-Published NAV(2)
Total
NW Natural Holding Company unitized stock$12,236,653 $— $— $— $12,236,653 
Mutual funds40,446,472 — — — 40,446,472 
Brokerage accounts10,630,109 — — — 10,630,109 
Total investments in the fair value hierarchy63,313,234 — — — 63,313,234 
Collective trust funds(1)
— — — 351,447,853 351,447,853 
Total investments at fair value$63,313,234 $— $— $351,447,853 $414,761,087 

As of December 31, 2024
AssetLevel 1Level 2Level 3
Non-Published NAV(2)
Total
NW Natural Holding Company unitized stock$10,360,750 $— $— $— $10,360,750 
Mutual funds35,737,764 — — — 35,737,764 
Brokerage accounts7,457,101 — — — 7,457,101 
Total investments in the fair value hierarchy53,555,615 — — — 53,555,615 
Collective trust funds(1)
— — — 285,571,879 285,571,879 
Total investments at fair value$53,555,615 $— $— $285,571,879 $339,127,494 
(1)    NW Natural believes the redemption value of the collective trust funds is likely to be the fair value, which is represented by the net asset value. A majority of the funds permit daily redemption without written notice. However, the US Treasury MM Trust B Fund allows daily redemption with 7 day written notice. There are no unfunded commitments with respect to collective trusts.
(2)    The fair value for these investments is determined using NAV as of December 31, as a practical expedient, and therefore they are not classified within the fair value hierarchy. These investments primarily consist of institutional investment products, for which the NAV is generally not publicly available.