3. Fair Value of Financial Assets and Liabilities

The following tables summarize the assets and liabilities measured at fair value on a recurring basis at December 31, 2025 and 2024 (in thousands):

Fair Value Measurements at December 31, 2025

  ​ ​ ​

Total

  ​ ​ ​

Level 1

  ​ ​ ​

Level 2

  ​ ​ ​

Level 3

Assets:

  ​

  ​

  ​

  ​

Cash and cash equivalents:

Money market funds

$

309,089

$

309,089

$

$

Marketable securities:

 

  ​

 

  ​

 

  ​

 

  ​

U.S. treasury obligations and government agency securities

44,036

44,036

Total assets

$

353,125

$

353,125

$

$

Fair Value Measurements at December 31, 2024

  ​ ​ ​

Total

  ​ ​ ​

Level 1

  ​ ​ ​

Level 2

  ​ ​ ​

Level 3

Assets:

  ​

  ​

  ​

  ​

Cash and cash equivalents:

Money market funds

$

97,290

$

97,290

$

$

U.S. treasury obligations

63,171

63,171

Marketable securities:

 

  ​

 

  ​

 

  ​

 

  ​

U.S. treasury obligations and government agency securities

 

259,400

259,400

Total assets

$

419,861

$

419,861

$

$

Level 1 assets include investments in money market funds, U.S. treasury obligations and government agency securities that are valued using quoted market prices in active markets. There were no transfers of assets between fair value measurement levels during the years ended December 31, 2025 and 2024.

The carrying amounts reflected in the balance sheets for prepaid expenses and other current assets, accounts payable, and accrued expenses approximate their fair values at December 31, 2025 and 2024, due to their short-term nature.

The Company believes the terms of its debt reflect current market conditions for an instrument with similar terms and maturity, therefore the carrying value of the Company's debt approximates its fair value based on Level 2 of the fair value hierarchy.

Historical Timeline

Fiscal YearFiled
2025Mar 3, 2026Showing above
2024Feb 27, 2025
2023Mar 19, 2024
2022Mar 7, 2023
2021Mar 7, 2022
2020Mar 9, 2021
2019Mar 12, 2020
2018Mar 19, 2019

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.