Note 3. Financial Instruments

The following tables summarize the Company’s financial assets and liabilities measured at fair value on a recurring basis by level within the fair value hierarchy:

 

 

 

December 31, 2025

 

 

 

Adjusted Cost

 

 

Unrealized Gain

 

 

Unrealized Losses

 

 

Fair Value

 

 

Cash and Cash Equivalent

 

 

Marketable Securities

 

 

 

(in thousands)

 

Assets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cash

 

$

16,690

 

 

$

 

 

$

 

 

$

16,690

 

 

$

16,690

 

 

$

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Level 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

 

 

16,977

 

 

 

 

 

 

 

 

 

16,977

 

 

 

16,977

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Level 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U.S. Government securities

 

 

20,818

 

 

 

3

 

 

 

(2

)

 

 

20,819

 

 

 

3,984

 

 

 

16,835

 

U.S. Treasury securities

 

 

13,460

 

 

 

 

 

 

(2

)

 

 

13,458

 

 

 

7,989

 

 

 

5,469

 

Commercial paper

 

 

45,480

 

 

 

2

 

 

 

(4

)

 

 

45,478

 

 

 

26,651

 

 

 

18,827

 

Corporate bonds

 

 

8,478

 

 

 

1

 

 

 

(2

)

 

 

8,477

 

 

 

 

 

 

8,477

 

Subtotal

 

 

88,236

 

 

 

6

 

 

 

(10

)

 

 

88,232

 

 

 

38,624

 

 

 

49,608

 

Total assets

 

$

121,903

 

 

$

6

 

 

$

(10

)

 

$

121,899

 

 

$

72,291

 

 

$

49,608

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Liabilities

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Level 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Convertible notes

 

 

 

 

 

 

 

 

 

 

 

100,958

 

 

 

 

 

 

 

Warrant liabilities

 

 

 

 

 

 

 

 

 

 

 

29,711

 

 

 

 

 

 

 

Total liabilities

 

$

 

 

$

 

 

$

 

 

 

130,669

 

 

$

 

 

$

 

 

 

December 31, 2024

 

 

 

Adjusted Cost

 

 

Unrealized Gain

 

 

Unrealized Losses

 

 

Fair Value

 

 

Cash and Cash Equivalent

 

 

Marketable Securities

 

 

 

(in thousands)

 

Assets

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cash

 

$

14,237

 

 

$

 

 

$

 

 

$

14,237

 

 

$

14,237

 

 

$

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Level 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

 

 

10,645

 

 

 

 

 

 

 

 

 

10,645

 

 

 

10,645

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Level 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U.S. Government securities

 

 

17,492

 

 

 

14

 

 

 

(2

)

 

 

17,504

 

 

 

 

 

 

17,504

 

U.S. Treasury securities

 

 

10,957

 

 

 

6

 

 

 

-

 

 

 

10,963

 

 

 

2,000

 

 

 

8,963

 

Commercial paper

 

 

12,711

 

 

 

9

 

 

 

(4

)

 

 

12,716

 

 

 

1,982

 

 

 

10,734

 

Corporate bonds

 

 

45,918

 

 

 

31

 

 

 

(7

)

 

 

45,942

 

 

 

 

 

 

45,942

 

Subtotal

 

 

87,078

 

 

 

60

 

 

 

(13

)

 

 

87,125

 

 

 

3,982

 

 

 

83,143

 

Total assets

 

$

111,960

 

 

$

60

 

 

$

(13

)

 

$

112,007

 

 

$

28,864

 

 

$

83,143

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Liabilities

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Level 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Warrant liabilities

 

 

 

 

 

 

 

 

 

 

 

8,258

 

 

 

 

 

 

 

Total liabilities

 

$

 

 

$

 

 

$

 

 

$

8,258

 

 

$

 

 

$

 

 

Warrant liabilities

The fair value of the private placement warrants and Series A Warrants is based on significant unobservable inputs, which represent Level 3 measurements within the fair value hierarchy. In determining the fair value of the warrant liabilities, the Company used the Black-Scholes option-pricing model to estimate the fair value using unobservable inputs including the expected term, expected volatility, risk-free interest rate, and dividend yield.

The following table presents a summary of the changes in the fair value of the Company’s Level 3 financial instruments (in thousands):

 

 

 

December 31, 2025

 

 

December 31, 2024

 

Fair value, beginning balance

 

$

8,258

 

 

$

6,772

 

Change in the fair value of Series A warrants included in other income
   (expense), net

 

 

21,479

 

 

 

1,500

 

Change in the fair value of private placement warrants included
   in other income (expense), net

 

 

(26

)

 

 

(14

)

Fair value, closing balance

 

$

29,711

 

 

$

8,258

 

 

The key inputs into the Black-Scholes option pricing model for the private warrants were as follows for the relevant periods:

 

 

 

December 31, 2025

 

 

December 31, 2024

 

Expected term (years)

 

 

0.2

 

 

 

1.2

 

Expected volatility

 

 

101.0

%

 

 

90.0

%

Risk-free interest rate

 

 

3.67

%

 

 

4.21

%

Dividend yield

 

 

0

%

 

 

0

%

Exercise Price

 

$

57.50

 

 

$

57.50

 

 

The key inputs into the Black-Scholes option pricing model for the Series A warrants were as follows for the relevant periods:

 

 

 

December 31, 2025

 

 

December 31, 2024

 

Expected term (years)

 

 

2.0

 

 

 

3.0

 

Expected volatility

 

 

101.0

%

 

 

90.0

%

Risk-free interest rate

 

 

3.48

%

 

 

4.23

%

Dividend yield

 

 

0

%

 

 

0

%

Exercise Price

 

$

5.00

 

 

$

5.00

 

 

Convertible notes

As of December 31, 2025, the fair value of the Company’s convertible notes was $101.0 million. The Company measures the fair value of its convertible notes for disclosure purposes. The fair value was determined based on the Lattice model and has been classified as Level 3 in the fair value hierarchy. See Note 10 “Financing transactions” for information regarding the Company’s convertible notes as of December 31, 2025. The key inputs into the Lattice model for the Convertible notes were as follows:

 

 

 

December 31, 2025

 

Expected term (years)

 

 

6.9

 

Expected volatility

 

 

87.7

%

Risk-free interest rate

 

 

3.90

%

Conversion rate

 

$

15.87

 

Share price

 

$

13.28

 

Historical Timeline

Fiscal YearFiled
2025Mar 20, 2026Showing above
2024Mar 21, 2025
2020Mar 11, 2021

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.