Company: CSTL
Filing Date: 2025-08-04
Form Type: 10-Q
Source: 0001447362-25-000097
Chunk: 25

Company: CASTLE BIOSCIENCES INC
Filing Date: 2025-08-04
Form: 10-Q
Item: Item 1
Chunk 25
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 – Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly.Level 3 – Unobservable inputs in which little or no market data exists, therefore requiring us to develop our own assumptions.Financial instruments measured at fair value are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires management to make judgments and consider factors specific to the asset or liability. The use of different assumptions and/or estimation methodologies may have a material effect on estimated 

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Table of ContentsCASTLE BIOSCIENCES, INC.NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Continued)(UNAUDITED)

fair values. Accordingly, the fair value estimates disclosed, or amounts recorded, may not be indicative of the amount that we or holders of the instruments could realize in a current market exchange.The tables below provide information, by level within the fair value hierarchy, of our financial assets and liabilities that are accounted for at fair value on a recurring basis as of June 30, 2025 and December 31, 2024 (in thousands):As of June 30, 2025 Quoted Prices in Active Markets for Identical Items (Level 1)Significant Other Observable Inputs(Level 2)Significant Unobservable Inputs(Level 3)TotalAssetsMoney market funds(1)$75,812 $— $— $75,812 U.S. government securities - AFS(2)$184,805 $— $— $184,805 Trading securities(2)$3,315 $— $— $3,315 LiabilitiesTerm Debt(3)(4)$— $10,040 $— $10,040 As of December 31, 2024 Quoted Prices in Active Markets for Identical Items (Level 1)Significant Other Observable Inputs(Level 2)Significant Unobservable Inputs(Level 3)TotalAssetsMoney market funds(1)$114,091 $— $— $114,091 U.S. government securities - AFS(2)$169,866 $— $— $169,866 Trading securities(2)$3,555 $— $— $3,555 LiabilitiesTerm Debt (3)(4)$— $10,