| Schedule of assets and liabilities measured at fair value on a recurring basis |
Assets and liabilities measured at fair value on a recurring basis as of March 31, 2024 and December 31, 2023 are as follows: | | | | | | | | | | | | | | | | | | | Quoted Prices | | Significant | | | | | | | | | | in Active | | Other | | Significant | | | | | | | Markets for | | Observable | | Unobservable | | | | | | | Identical Assets | | Inputs | | Inputs | | Assets | | Total | | (Level 1) | | (Level 2) | | (Level 3) | | | March 31, 2024 | | (in thousands) | | Money market funds included in cash and cash equivalents | | $ | 49,444 | | $ | 49,444 | | $ | — | | $ | — | | Marketable securities: | | | | | | | | | | | | | | U.S. Treasury notes | | | 24,486 | | | 24,486 | | | — | | | — | | U.S. Government agency securities | | | 138,191 | | | 138,191 | | | — | | | — | | Corporate bonds | | | 88,983 | | | — | | | 88,983 | | | — | | Commercial paper | | | 4,830 | | | — | | | 4,830 | | | — | | Total money market funds and marketable securities | | $ | 305,934 | | $ | 212,121 | | $ | 93,813 | | $ | — | | December 31, 2023 | | | | | | | | | | | | | | Money market funds included in cash and cash equivalents | | $ | 65,589 | | $ | 65,589 | | $ | — | | $ | — | | Marketable securities: | | | | | | | | | | | | | | U.S. Treasury notes | | | 103,044 | | | 103,044 | | | — | | | — | | U.S. Government agency securities | | | 31,075 | | | 31,075 | | | — | | | — | | Corporate bonds | | | 23,970 | | | — | | | 23,970 | | | — | | Commercial paper | | | 3,985 | | | — | | | 3,985 | | | — | | Total money market funds and marketable securities | | $ | 227,663 | | $ | 199,708 | | $ | 27,955 | | $ | — | |
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