| Schedule of marketable securities |
Marketable securities, which are classified as available-for-sale, consisted of the following as of June 30, 2026 and December 31, 2025 (in thousands): | | | | | | | | | | | | | | | June 30, 2026 | | | | | | Gross | | Gross | | | | | | Amortized Cost | | Unrealized | | Unrealized | | Fair | | | Basis | | Gains | | Losses | | Value | Marketable securities, current: | | | | | | | | | | | | | U.S. Treasury obligations | | $ | 301,955 | | $ | 1 | | $ | (499) | | $ | 301,457 | Corporate debt obligations | | | 87,008 | | | 3 | | | (152) | | | 86,859 | Commercial paper | | | 48,311 | | | — | | | (37) | | | 48,274 | Supranational debt obligations | | | 1,996 | | | 1 | | | — | | | 1,997 | Total marketable securities, current | | $ | 439,270 | | $ | 5 | | $ | (688) | | $ | 438,587 |
| | | | | | | | | | | | | | | December 31, 2025 | | | | | Gross | | Gross | | | | | Amortized Cost | | Unrealized | | Unrealized | | Fair | | | Basis | | Gains | | Losses | | Value | Marketable securities, current: | | | | | | | | | | | | | U.S. Treasury obligations | | $ | 148,352 | | $ | 129 | | $ | — | | $ | 148,481 | Corporate debt obligations | | | 30,720 | | | 24 | | | — | | | 30,744 | Commercial paper | | | 27,652 | | | 20 | | | — | | | 27,672 | Supranational debt obligations | | | 7,913 | | | 9 | | | — | | | 7,922 | Government development bank obligations | | | 4,006 | | | 6 | | | — | | | 4,012 | Total marketable securities | | $ | 218,643 | | $ | 188 | | $ | — | | $ | 218,831 |
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