4. Fair Value Measurements

The following tables present information about the Company’s financial assets and liabilities measured at fair value on a recurring basis and indicate the level of the fair value hierarchy utilized to determine such fair values:

 

 

Fair Value Measurements as of
December 31, 2025:

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

 

 

(in thousands)

 

Assets

 

 

 

 

 

 

 

 

 

 

 

 

Cash equivalents:

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

 

$

80,313

 

 

$

 

 

$

 

 

$

80,313

 

Total cash equivalents

 

 

80,313

 

 

 

 

 

 

 

 

 

80,313

 

Investments:

 

 

 

 

 

 

 

 

 

 

 

 

U.S. treasury bills

 

 

 

 

 

401,184

 

 

 

 

 

 

401,184

 

U.S. agency securities

 

 

 

 

 

69,316

 

 

 

 

 

 

69,316

 

Total investments

 

 

 

 

 

470,500

 

 

 

 

 

 

470,500

 

Total assets

 

$

80,313

 

 

$

470,500

 

 

$

 

 

$

550,813

 

Liabilities

 

 

 

 

 

 

 

 

 

 

 

 

Contingent Milestone Payments

 

$

 

 

$

 

 

$

 

 

$

 

Total liabilities

 

$

 

 

$

 

 

$

 

 

$

 

 

 

 

Fair Value Measurements as of
December 31, 2024:

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

 

 

(in thousands)

 

Assets

 

 

 

 

 

 

 

 

 

 

 

 

Cash equivalents:

 

 

 

 

 

 

 

 

 

 

 

 

Money market funds

 

$

122,128

 

 

$

 

 

$

 

 

$

122,128

 

Total cash equivalents

 

 

122,128

 

 

 

 

 

 

 

 

 

122,128

 

Investments:

 

 

 

 

 

 

 

 

 

 

 

 

U.S. treasury bills

 

 

 

 

 

564,083

 

 

 

 

 

 

564,083

 

U.S. agency securities

 

 

 

 

 

92,953

 

 

 

 

 

 

92,953

 

Total investments

 

 

 

 

 

657,036

 

 

 

 

 

 

657,036

 

Total assets

 

$

122,128

 

 

$

657,036

 

 

$

 

 

$

779,164

 

Liabilities

 

 

 

 

 

 

 

 

 

 

 

 

Contingent Milestone Payments

 

$

 

 

$

 

 

$

 

 

$

 

Total liabilities

 

$

 

 

$

 

 

$

 

 

$

 

In determining the fair value of its investments at each date presented above, the Company relied on quoted prices for similar securities in active markets or using other inputs that are observable or can be corroborated by observable market data.

Fair Value of Contingent Consideration

In 2021, the Company acquired ZebiAI.

Pursuant to the terms of the acquisition, the Company is liable for certain contingent consideration, including (a) up to $85.0 million in platform and program milestones ("Contingent Milestone Payments") and (b) up to $100.0 million in earnout payments ("Contingent Earnout Payments"), both payable to ZebiAI's former equity holders upon achievement.

The Company classified the Contingent Milestone Payments within Level 3 of the fair value hierarchy. Pursuant to ASC Topic 480, Distinguishing Liabilities from Equity ("ASC 480"), the Company has accounted for the Contingent Milestone Payments as a liability and remeasured the fair value at each reporting period based on the probability of achieving the milestones and timing. Significant judgment has been used in determining the underlying assumptions. In connection therewith, the liability was recorded at $0 on the consolidated balance sheet as of December 31, 2025.

The Company has not accounted for the Contingent Earnout Payments as derivatives under ASC Topic 815, Derivatives and Hedging ("ASC 815"). As such, they were only measured at fair value as of the acquisition date and have not been re-assessed at fair value as of each reporting period end. During the year ended December 31, 2024, the contingency was resolved without the consideration becoming payable. Therefore, the liability was recorded at $0 on the consolidated balance sheet as of December 31, 2025.

The following table reconciles the change in the contingent consideration liability:

 

 

Year Ended December 31,

 

 

 

2025

 

 

2024

 

 

2023

 

 

 

(in thousands)

 

Balance at beginning of period

 

$

 

 

$

13,206

 

 

$

32,378

 

Change in fair value of Contingent Milestone Payments

 

 

 

 

 

(8,206

)

 

 

(6,422

)

Change in carrying value of Contingent Earnout Payments

 

 

 

 

 

(5,000

)

 

 

 

Common stock issued upon milestone achievement

 

 

 

 

 

 

 

 

(12,750

)

 

 

$

 

 

$

 

 

$

13,206

 

Historical Timeline

Fiscal YearFiled
2025Feb 26, 2026Showing above
2024Feb 26, 2025
2023Feb 22, 2024
2022Feb 23, 2023
2021Feb 24, 2022
2020Mar 25, 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.