Note 4.    Fair Value Measurements

Financial assets and liabilities are recorded at fair value. The accounting guidance for fair value provides a framework for measuring fair value, clarifies the definition of fair value and expands 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 (an exit price) in an orderly transaction between market participants at the reporting date. The accounting guidance establishes a three-tiered hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value as follows:

Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities at the measurement date.

Level 2—Inputs (other than quoted market prices included in Level 1) are either directly or indirectly observable for the asset or liability through correlation with market data at the measurement date and for the duration of the instrument’s anticipated life.

Level 3—Inputs reflect management’s best estimate of what market participants would use in pricing the asset or liability at the measurement date. Consideration is given to the risk inherent in the valuation technique and the risk inherent in the inputs to the model.

In determining fair value, the Company utilizes quoted market prices, broker or dealer quotations, or valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible and considers counterparty credit risk in its assessment of fair value.

The following tables present the fair value of the Company’s financial assets determined using the inputs defined above (in thousands):

December 31, 2025

  ​ ​ ​

Level 1

  ​ ​ ​

Level 2

  ​ ​ ​

Level 3

  ​ ​ ​

Total

Assets:

Money market funds

$

40,774

$

$

 

$

40,774

Certificates of deposit

 

11,391

 

 

 

11,391

U.S. Treasury and agency securities

348,948

348,948

Commercial paper

 

77,865

 

 

 

77,865

Corporate debt securities

159,211

159,211

Total financial assets

$

40,774

$

597,415

  ​

$

 

$

638,189

December 31, 2024

  ​ ​ ​

Level 1

  ​ ​ ​

Level 2

  ​ ​ ​

Level 3

  ​ ​ ​

Total

Assets:

Money market funds

$

19,563

$

$

 

$

19,563

Certificates of deposit

 

15,835

 

 

 

15,835

U.S. Treasury and agency securities

299,217

299,217

Commercial paper

 

 

110,832

 

 

 

110,832

Corporate debt securities

 

 

102,705

  ​

 

 

 

102,705

Total financial assets

$

19,563

$

528,589

  ​

$

 

$

548,152

The Company’s certificates of deposit, U.S. Treasury and agency securities, including U.S. Treasury bills, commercial paper, and corporate debt securities are classified as Level 2 as they were valued based upon quoted market prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-based valuation techniques, for which all significant inputs are observable in the market or can be corroborated by observable market data for substantially the full term of the assets.

The carrying amount of the Company’s remaining financial assets and liabilities, including cash, receivables and payables, approximates their fair value due to their short-term nature.

Historical Timeline

Fiscal YearFiled
2025Feb 25, 2026Showing above
2024Feb 21, 2025
2023Feb 27, 2024
2022Mar 15, 2023
2021Feb 28, 2022
2020Mar 10, 2021
2019Mar 10, 2020
2018Mar 12, 2019
2017Mar 7, 2018
2016Mar 7, 2017

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.