Fair Value Measurements - Schedule of Fair Value Instruments (Details) - USD ($)
$ in Thousands

Sep. 30, 2025

Dec. 31, 2024

Jun. 18, 2024

^[2]

Liabilities

Convertible Notes payable, noncurrent

$ 0

^[1]

$ 107,600

^[1],[2]

$ 0

Fair Value, Recurring

Assets:

Total assets

197,743

65,000

Liabilities

Convertible Notes payable, noncurrent

107,600

Total liabilities

107,600

Fair Value, Recurring | Fair Value, Inputs, Level 1

Assets:

Total assets

122,833

65,000

Fair Value, Recurring | Fair Value, Inputs, Level 2

Assets:

Total assets

74,910

Fair Value, Recurring | Fair Value, Inputs, Level 3

Liabilities

Convertible Notes payable, noncurrent

107,600

Total liabilities

107,600

Fair Value, Recurring | U.S. Treasury Securities

Assets:

Cash equivalents

4,985

Current marketable securities

54,677

Fair Value, Recurring | U.S. Treasury Securities | Fair Value, Inputs, Level 2

Assets:

Cash equivalents

4,985

Current marketable securities

54,677

Fair Value, Recurring | U.S. Government-sponsored Agency Securities

Assets:

Current marketable securities

7,399

Fair Value, Recurring | U.S. Government-sponsored Agency Securities | Fair Value, Inputs, Level 1

Assets:

Current marketable securities

4,032

Fair Value, Recurring | U.S. Government-sponsored Agency Securities | Fair Value, Inputs, Level 2

Assets:

Current marketable securities

3,367

Fair Value, Recurring | Corporate Debt Securities

Assets:

Cash equivalents

5,509

Non-current marketable securities

80,845

Fair Value, Recurring | Corporate Debt Securities | Fair Value, Inputs, Level 1

Assets:

Cash equivalents

5,509

Non-current marketable securities

77,824

Fair Value, Recurring | Corporate Debt Securities | Fair Value, Inputs, Level 2

Assets:

Non-current marketable securities

3,021

Fair Value, Recurring | Money Market Funds

Assets:

Cash equivalents

35,468

65,000

Fair Value, Recurring | Money Market Funds | Fair Value, Inputs, Level 1

Assets:

Cash equivalents

35,468

$ 65,000

Fair Value, Recurring | Commercial Paper

Assets:

Cash equivalents

2,982

Current marketable securities

5,878

Fair Value, Recurring | Commercial Paper | Fair Value, Inputs, Level 2

Assets:

Cash equivalents

2,982

Current marketable securities

$ 5,878

[1]	Includes related party amount of $22.7 million at December 31, 2024.
[2]	Includes related party amount of $22.7 million.

Jade Biosciences, Inc. S-1