Note 4. Fair Value Measurements

Financial assets and liabilities are recorded at fair value.

The Company classifies fair value measurements using a three-level hierarchy that prioritizes the inputs used to measure fair value. This hierarchy requires entities to maximize the use of observable inputs and minimize the use of unobservable inputs. The three levels of inputs used to measure fair value are as follows:

Level 1—Quoted market prices (unadjusted) in active markets for identical assets and liabilities.
Level 2—Observable inputs other than quoted market prices included in Level 1, such as quoted market prices for markets that are not active or other inputs that are observable or can be corroborated by observable market data.
Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities, including certain pricing models, discounted cash flow methodologies and similar techniques that use significant unobservable inputs. These fair values are obtained from independent pricing services which utilize Level 1 and Level 2 inputs.

Financial Assets

The following table summarizes the Company's financial asset instruments measured at fair value on a recurring basis as of December 31, 2025 and 2024 (in thousands). Included within cash and cash equivalents on the consolidated balance sheets, but excluded from the fair value hierarchy table, are cash deposits held at financial institutions.

 

 

 

December 31, 2025

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Assets:

 

 

 

 

 

 

 

 

 

 

 

 

Cash equivalents:

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

 

$

6,734

 

 

$

 

 

$

 

 

$

6,734

 

U.S. treasuries

 

 

 

 

 

14,955

 

 

 

 

 

 

14,955

 

Total cash equivalents

 

 

6,734

 

 

 

14,955

 

 

 

 

 

 

21,689

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Short-term investments:

 

 

 

 

 

 

 

 

 

 

 

 

U.S. treasuries

 

 

 

 

 

59,861

 

 

 

 

 

 

59,861

 

U.S. government securities

 

 

 

 

 

50,667

 

 

 

 

 

 

50,667

 

Total short-term investments

 

 

 

 

 

110,528

 

 

 

 

 

 

110,528

 

Total financial assets

 

$

6,734

 

 

$

125,483

 

 

$

 

 

$

132,217

 

 

 

 

December 31, 2024

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Assets:

 

 

 

 

 

 

 

 

 

 

 

 

Cash equivalents:

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

 

$

1,215

 

 

$

 

 

$

 

 

$

1,215

 

U.S. treasuries

 

 

 

 

 

17,464

 

 

 

 

 

 

17,464

 

Total cash equivalents

 

 

1,215

 

 

 

17,464

 

 

 

 

 

 

18,679

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Short-term investments:

 

 

 

 

 

 

 

 

 

 

 

 

U.S. government securities

 

 

 

 

 

119,629

 

 

 

 

 

 

119,629

 

Total short-term investments

 

 

 

 

 

119,629

 

 

 

 

 

 

119,629

 

Total financial assets

 

$

1,215

 

 

$

137,093

 

 

$

 

 

$

138,308

 

 

Warrant Liabilities

The following table summarizes the Company's warrant liabilities (see Note 9. Preferred Stock and Stockholders' Equity) measured at fair value on a recurring basis as of December 31, 2025 and 2024 (in thousands) and was based on significant inputs not observable in the market, which represents a Level 3 measurement within the fair value hierarchy.

 

 

December 31, 2025

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Warrant liabilities

 

$

 

 

$

 

 

$

11,416

 

 

$

11,416

 

 

 

 

December 31, 2024

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Warrant liabilities

 

$

 

 

$

 

 

$

44,865

 

 

$

44,865

 

The following table provides a roll-forward of the aggregate fair value of the warrant liabilities categorized with Level 3 inputs (in thousands):

 

 

Warrant Liability

 

Balance as of December 31, 2024

 

$

44,865

 

Change in fair value of warrant liabilities

 

 

(33,449

)

Settlement of warrant liability

 

 

 

Balance as of December 31, 2025

 

$

11,416

 

Historical Timeline

Fiscal YearFiled
2025Mar 19, 2026Showing above
2024Mar 20, 2025
2023Mar 28, 2024
2017Apr 2, 2018
2016Mar 3, 2017
2015Mar 10, 2016

About Fair Value Disclosures

Fair value disclosures classify all assets and liabilities measured at fair value into a three-level hierarchy: Level 1 (quoted market prices), Level 2 (observable inputs like yield curves), and Level 3 (unobservable inputs requiring management estimates). The proportion of Level 3 assets directly reflects how much of the balance sheet depends on internal models rather than market evidence.

Key signals: a growing Level 3 balance relative to total fair-value assets increases valuation uncertainty and earnings volatility risk. Watch for transfers between levels — assets moving from Level 2 to Level 3 often signal deteriorating market liquidity. Unrealized gains and losses on Level 3 positions flow through earnings or other comprehensive income, so large swings deserve scrutiny. For financial institutions, examine the sensitivity disclosures that show how Level 3 valuations change under alternative assumptions. Compare the fair value of debt against its carrying amount to gauge hidden leverage.