v3.26.1
Fair Value Measurements
 12 Months Ended
Dec. 31, 2025
EBP 001  
EBP, Investment, Fair Value and NAV [Line Items]  
Fair Value Measurements FAIR VALUE MEASUREMENTS
FASB ASC 820, "Fair Value Measurements," (ASC 820) establishes a framework for measuring fair value. That framework provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under ASC 820 are described as follows:
 
Level 1    Quoted prices in active markets for identical assets or liabilities.

Level 2    Observable inputs, other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or that we corroborate with observable market data for substantially the full term of the related assets or liabilities.

Level 3    Unobservable inputs supported by little or no market activity that are significant to the fair value of the assets or liabilities.

The asset's or liability's fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.

Following is a description of the valuation methodologies used for assets at fair value. There have been no changes in the methodologies used at December 31, 2025 and 2024. 
Common/Collective Trusts:Valued based on the value of the underlying assets held less liabilities, which are measured at the closing net asset value ("NAV") per unit (or the equivalent) using the practical expedient. This practical expedient would not be used if it is determined to be probable that the fund will sell the investments for an amount different from the reported NAV. The fair value of the Plan's investments in common/collective trusts are calculated each business day and can be redeemed on a daily basis without restriction. There are no unfunded commitments.
Registered Investment Companies:Valued at the NAV (quoted market prices) of shares held by the Plan.
Star Equity Holdings Stock Fund:The Star Equity Holdings Stock Fund is a unitized stock fund. The fund consists of both Star Equity Holdings, Inc. common stock and a short-term cash component that provides liquidity for daily trading. Star Equity Holdings, Inc. common stock is valued at the quoted market price from a national securities exchange and the short-term cash investment is valued at cost, which approximates fair value. Beginning in 2021, the Star Equity Holdings Stock Fund is classified as Level 1 of the fair value hierarchy. The Star Equity Holdings, Inc. common stock component is included within "Star Equity Holdings Common Stock" and the short-term cash component is included within "Money Market Account".
Self-Directed Brokerage AccountsConsists primarily of common stocks and mutual funds valued at quoted prices in active markets.

The preceding methods may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, although the Plan believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.
The following table sets forth by level, within the fair value hierarchy, the Plan's assets at fair value as of December 31, 2025 and 2024.
December 31, 2025
Level 1Total
Registered Investment Companies$28,305,163 $28,305,163 
Self-Directed Brokerage Accounts1,600,582 1,600,582 
Star Equity Holdings Common Stock 147,915 147,915 
Money Market Account5,037 5,037 
Total investments at fair value$30,058,697 30,058,697 
Common/Collective Trusts (a)
8,647,534 
Total investments at net asset value8,647,534 
Total investments$38,706,231 


December 31, 2024
Level 1Total
Registered Investment Companies$26,147,914 $26,147,914 
Self-Directed Brokerage Accounts1,272,631 1,272,631 
Star Equity Holdings Common Stock 157,879 157,879 
Money Market Account7,291 7,291 
Total investments at fair value$27,585,715 27,585,715 
Common/Collective Trusts (a)
8,322,137 
Total investments at net asset value8,322,137 
Total investments$35,907,852 
 

(a)     In accordance with FASB authoritative guidance regarding fair value measurement, certain investments that were measured at net asset value per share (or its equivalent) have not been classified in the fair value hierarchy. The amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the line items presented in the Statements of Net Assets Available for Benefits.