Fair Value of Financial Instruments
The accounting standard for fair value measurements provides a framework for measuring fair value and requires disclosures regarding fair value measurements. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, based on the Company’s principal or, in absence of a principal, most advantageous market for the specific asset or liability.
The Company uses a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis, as well as assets and liabilities measured at fair value on a non-recurring basis, in periods subsequent to their initial measurement. The hierarchy requires the Company to use observable inputs, when available, and to minimize the use of unobservable inputs when determining fair value. The three tiers are defined as follows:
Level 1: Observable inputs that reflect quoted market prices (unadjusted) for identical assets or liabilities in active markets;
Level 2: Observable inputs other than quoted prices in active markets that are observable either directly or indirectly in the marketplace for identical or similar assets and liabilities; and
Level 3: Unobservable inputs that are supported by little or no market data, which require the Company to develop its own assumptions.
The carrying amounts of certain financial instruments, including cash and cash equivalents, accounts and other receivables, and accounts payable and accrued expenses approximate their respective fair values due to the short-term nature of such instruments.
Assets and Liabilities Measured at Fair Value on a Recurring Basis
The Company evaluates its financial assets and liabilities subject to fair value measurements on a recurring basis to determine the appropriate level in which to classify them for each reporting period. This determination requires significant judgments to be made. The following table summarizes the conclusions reached regarding fair value measurements as of December 31, 2025, and 2024 (in thousands):
Balance at
December 31,
2025
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
CVR liability $1,540 $— $— $1,540 
Warrant liabilities9,575 — — 9,575 
Total liabilities$11,115 $— $— $11,115 
Securities:
U.S. Treasury securities$97,132 $97,132 $— $— 
Corporate bonds79,352 — 79,352 — 
Total assets$176,484 $97,132 $79,352 $— 
Balance at
December 31,
2024
Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)
Significant
Other
Observable
Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
CVR liability$3,500 $— $— $3,500 
Warrant liabilities17,804 — — 17,804 
Total liabilities$21,304 $— $— $21,304 
Securities:
U.S. Treasury securities$35,711 $35,711 $— $— 
Corporate bonds6,010 6,010 
Total assets$41,721 $35,711 $6,010 $— 
Warrants
The common stock warrant liabilities were recorded at fair value using the BSM option pricing model. The following assumptions were used in determining the fair value of the warrant liabilities valued using the BSM option pricing model as of December 31, 2025, and 2024:
December 31, 2025December 31, 2024
Risk-free interest rate
3.42% - 3.67%
4.08% - 4.23%
Volatility
57.28% - 66.70%
62.14% - 68.68%
Dividend yield%%
Expected term (years)
0.02 - 2.89
1.02 - 3.89
Weighted average fair value$2.38 $3.25 
The following table is a reconciliation for the common stock warrant liabilities measured at fair value using Level 3 unobservable inputs (in thousands):
Balance as of December 31, 2024$17,804 
Change in fair value measurement of warrant liabilities(218)
Warrants exercised(8,011)
Balance as of December 31, 2025$9,575 
For the year ended December 31, 2025, the changes in fair value of the warrant liabilities primarily resulted from the volatility of the Company's common stock.
Contingent Consideration
Contingent consideration liabilities relate to the Company's liabilities arising in connection with the CVRs. The contingent consideration is classified as Level 3 in the fair value hierarchy. The fair value is measured based on a Monte Carlo simulation or a scenario-based method, depending on the earn-out achievement objectives, utilizing projections about future performance. Significant inputs include volatility and projected financial information, including projections representative of a market participant's view of the expected cash payments associated with the agreed upon regulatory milestones based on probabilities of technical success, timing of the potential milestone events for the compounds, and estimated discount rates.
The following table provides a reconciliation of the beginning and ending balances related to the contingent consideration liabilities for the CVRs (dollars in thousands):
Balance as of December 31, 2024$3,500 
Change in fair value measurement of contingent consideration liabilities(1,960)
Balance as of December 31, 2025$1,540 
For the year ended December 31, 2025, the changes in fair value of contingent consideration primarily resulted from changes in the discount rates.

Historical Timeline

Fiscal YearFiled
2025Mar 9, 2026Showing above
2024Mar 12, 2025
2023Apr 1, 2024
2022Mar 7, 2023
2021Mar 31, 2022
2020Mar 12, 2021
2019Feb 28, 2020
2018Mar 1, 2019
2017Mar 30, 2018
2016Mar 10, 2017
2015Mar 16, 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.