v3.26.1
Schedule H, Line 4i – Schedule of Assets (Held At End of Year)
 12 Months Ended
Dec. 31, 2025
EBP 008  
EBP, Schedule of Asset Held for Investment [Line Items]  
Schedule H, Line 4i – Schedule of Assets (Held At End of Year)
NORTHWEST NATURAL GAS COMPANY
RETIREMENT K SAVINGS PLAN
Form 5500, Schedule H, Line 4i; Schedule of Assets (Held at End of Year)
EIN: 93-0256722 Plan 008
December 31, 2025
(a)(b)(c)(d)(e)
Identity of issue, borrower, lessor or similar partyDescription of investment including maturity date, rate of interest, collateral, par or maturity valueCost
**		Current Value
***BrokerageLinkSelf-directed brokerage accounts$10,630,109 
Artisan International Institutional Fund Collective trust10,422,766 
*BlackRock MSCI ACWI ex-U.S. Index Fund M Collective trust9,940,728 
*BlackRock Equity Index Fund MCollective trust46,977,192 
*BlackRock Extended Market K Collective trust9,901,582 
*BlackRock US Debt Index NL W Collective trust9,830,424 
*BlackRock LifePath Index Retirement FundCollective trust39,181,151 
*BlackRock LifePath Index 2030 FundCollective trust36,321,589 
*BlackRock LifePath Index 2035 FundCollective trust48,520,561 
*BlackRock LifePath Index 2040 FundCollective trust33,313,581 
*BlackRock LifePath Index 2045 FundCollective trust37,106,003 
*BlackRock LifePath Index 2050 FundCollective trust30,271,813 
*BlackRock LifePath Index 2055 FundCollective trust19,359,878 
*BlackRock LifePath Index 2060 FundCollective trust7,503,274 
*BlackRock LifePath Index 2065 FundCollective trust1,955,977 
T. Rowe Price US Treasury MM Trust BCollective trust10,841,334 
T. Rowe Price Small-Cap Stock Fund Mutual fund12,852,452 
American Century Small Cap Value FundMutual fund459,205 
JPMorgan Equity Income FundMutual fund6,033,171 
*
Fidelity Total Bond K6 Fund
Mutual fund
3,184,294 
*Fidelity Blue Chip Growth K6 FundMutual fund17,917,350 
*
NW Natural Holding Company Unitized Stock
Common stock
12,236,653 
Total investments414,761,087 
*Notes Receivable from Participants
Interest rates from 4.25% to 9.5% maturing January 2026 to October 2040

5,018,405 
$419,779,492 
*    Represents identification of known party-in-interest in the Plan.
**    Cost information is not required for participant-directed investments.
***    Certain investments in the BrokerageLink account are shares of mutual funds managed by Fidelity, which represents a party-in-interest in the Plan.