3.
Fair Value Measurements

The following tables summarize financial assets that were measured at fair value on a recurring basis by level within the fair value hierarchy (in thousands):

 

 

December 31, 2025

 

 

 

Total

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

Money market funds (included in cash and cash equivalents)

 

$

40,721

 

 

$

40,721

 

 

$

 

 

$

 

U.S. government bonds

 

 

72,177

 

 

 

 

 

 

72,177

 

 

 

 

Government agency obligations

 

 

15,825

 

 

 

 

 

 

15,825

 

 

 

 

Corporate debt obligations

 

 

15,211

 

 

 

 

 

 

15,211

 

 

 

 

Commercial paper

 

 

15,864

 

 

 

 

 

 

15,864

 

 

 

 

Total fair value of assets

 

$

159,798

 

 

$

40,721

 

 

$

119,077

 

 

$

 

 

 

 

December 31, 2024

 

 

 

Total

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

Money market funds (included in cash and cash equivalents)

 

$

26,169

 

 

$

26,169

 

 

$

 

 

$

 

U.S. government bonds

 

 

109,657

 

 

 

 

 

 

109,657

 

 

 

 

Government agency obligations

 

 

40,544

 

 

 

 

 

 

40,544

 

 

 

 

Corporate debt obligations

 

 

32,353

 

 

 

 

 

 

32,353

 

 

 

 

Commercial paper

 

 

30,349

 

 

 

 

 

 

30,349

 

 

 

 

Asset-backed securities

 

 

5,520

 

 

 

 

 

 

5,520

 

 

 

 

Foreign debt securities

 

 

2,498

 

 

 

 

 

 

2,498

 

 

 

 

Long-term investments (Note 5)

 

 

1,292

 

 

 

 

 

 

 

 

 

1,292

 

Total fair value of assets

 

$

248,382

 

 

$

26,169

 

 

$

220,921

 

 

$

1,292

 

 

In addition, restricted cash of $5.2 million as of December 31, 2025 and 2024, collateralized by the Company’s cash equivalents, are financial assets measured at fair value and are Level 1 financial instruments under the fair value hierarchy.

The Company has investments in preferred stock, common stock and warrants of Affini-T Therapeutics, Inc. (“Affini-T”) (see Note 5, “Long-Term Investments”) which are Level 3 financial assets. The equity value of the investments in Affini-T was determined under a fair-value hybrid method with the changes in fair value recorded within other income (expense), net. The hybrid method is a hybrid between the probability-weighted expected returns method (the “PWERM”) and the option-pricing model backsolve method (the “OPM”). As of December 31, 2025 and 2024, the estimated fair value of investments in Affini-T was zero and $1.3 million, respectively.

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

 

Years Ended December 31,

 

 

2025

 

 

2024

 

Beginning balance

 

$

1,292

 

 

$

8,521

 

Fair value of investment received as collaboration consideration

 

 

 

 

 

1,632

 

Fair value of investment purchased in preferred stock purchase agreement

 

 

 

 

 

324

 

Change in fair value included in other income (expense)

 

 

(1,292

)

 

 

(9,185

)

Ending balance

 

$

 

 

$

1,292

 

Historical Timeline

Fiscal YearFiled
2025Mar 5, 2026Showing above
2024Mar 17, 2025

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.