Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement (Tables)

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Fair Value Measurement (Tables)
 6 Months Ended
Jun. 30, 2024
Fair Value Disclosures [Abstract]  
Schedule of Fair Value Financial Assets Measured on a Recurring Basis
The following tables present the Company's fair value hierarchy for its financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2024, and December 31, 2023:
June 30, 2024
(in thousands) (Level 1) (Level 2) (Level 3) Total
Assets:
Money market funds (1)
$ 8,962  $ —  $ —  $ 8,962 
U.S. government securities 1,944  —  —  1,944 
Total assets $ 10,906  $ —  $ —  $ 10,906 
Liabilities:
Debt derivative liabilities $ —  $ —  $ 2,458  $ 2,458 
Total liabilities $ —  $ —  $ 2,458  $ 2,458 
(1) Money market funds are included in Cash and cash equivalents on the Condensed Consolidated Balance Sheet.
December 31, 2023
(in thousands) (Level 1) (Level 2) (Level 3) Total
Assets:
Money market funds(1)
$ 24,977  $ —  $ —  $ 24,977 
Total assets $ 24,977  $ —  $ —  $ 24,977 
Liabilities:
Debt derivative liabilities $ —  $ —  $ 2,987  $ 2,987 
Total liabilities $ —  $ —  $ 2,987  $ 2,987 
(1) Money market funds are included in Cash and cash equivalents on the Condensed Consolidated Balance Sheet.
Schedule of Fair Value Instruments Classified Level 3
The changes in Level 3 liabilities measured at fair value on a recurring basis for the three and six months ended June 30, 2024, were as follows (in thousands):
Three Months Ended June 30, 2024
Beginning Balance, April 1, 2024 $ 2,922 
Change in fair value included in net loss (464)
Ending Balance, June 30, 2024 $ 2,458 
Six Months Ended June 30, 2024
Beginning Balance, January 1, 2024 $ 2,987 
Change in fair value included in net loss (529)
Ending Balance, June 30, 2024 $ 2,458 
Schedule of Significant Inputs in Liability Valuation
The significant inputs that are included in the valuation of the debt derivative liability - first tranche include:
June 30, 2024 December 31, 2023
Input
Remaining term (years) 3 years 3.5 years
Maturity date June 30, 2027 June 30, 2027
Coupon rate
9.5% - 13.2%
9.5% - 13.2%
Revenue participation payments Maximum each year Maximum each year
Discount rate 12.14%  (1) 12.06%  (1)
Probability of mandatory prepayment 2024 or after 15.0  % (1) 15.0  % (1)
Estimated timing of mandatory prepayment event 2024 or after March 31, 2026 (1) March 31, 2026 (1)
Probability of optional prepayment event 5.0  % (1) 5.0  % (1)
Estimated timing of optional prepayment event December 31, 2025 (1) December 31, 2025 (1)
Probability of note held-to-maturity(2)
80.0%  (1) 80.0%  (1)
(1)Represents a significant unobservable input.
(2) See Maturity date in table.
The significant inputs that are included in the valuation of the debt derivative liability - second tranche include:
June 30, 2024 December 31, 2023
Input
Remaining term (years) 4 years 4.5 years
Maturity date June 30, 2028 June 30, 2028
Coupon rate
9.5% - 13.2%
9.5% - 13.2%
Revenue participation payments Maximum each year Maximum each year
Discount rate 14.77  % (1) 15.60  % (1)
Probability of mandatory prepayment 2024 or after 15.0%  (1) 15.0%  (1)
Estimated timing of mandatory prepayment event 2024 or after March 31, 2026 (1) March 31, 2026 (1)
Probability of optional prepayment event 5.0%  (1) 5.0%  (1)
Estimated timing of optional prepayment event December 31, 2025 (1) December 31, 2025 (1)
Probability of held-to-maturity(2)
80.0%  80.0% 
(1)Represents a significant unobservable input.
(2)See Maturity date in table.