| Schedule of Financial Assets Measured at Fair Value on a Recurring Basis |
The following table sets forth our financial assets that are measured at fair value on a recurring basis: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | September 30, 2024 | | Fair value hierarchy level | | Cost or amortized cost | | Gross unrealized gains | | Gross unrealized losses | | Fair value | | | | (in thousands) | | Cash equivalents: | | | | | | | | | | | Money market funds | Level 1 | | $ | 426,959 | | | $ | — | | | $ | — | | | $ | 426,959 | | | | | | | | | | | | | Commercial paper | Level 2 | | 7,998 | | | — | | | (1) | | | 7,997 | | | Marketable securities: | | | | | | | | | | | U.S. treasury securities | Level 1 | | 864,618 | | | 2,488 | | | (48) | | | 867,058 | | | U.S. agency bonds | Level 2 | | 21,000 | | | 9 | | | (3) | | | 21,006 | | | Non-U.S. government securities | Level 2 | | 4,996 | | | — | | | — | | | 4,996 | | | Corporate bonds | Level 2 | | 154,038 | | | 940 | | | (1) | | | 154,977 | | | | | | | | | | | | | Commercial paper | Level 2 | | 180,731 | | | 304 | | | — | | | 181,035 | | | Total | | | $ | 1,660,340 | | | $ | 3,741 | | | $ | (53) | | | $ | 1,664,028 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2023 | | Fair value hierarchy level | | Cost or amortized cost | | Gross unrealized gains | | Gross unrealized losses | | Fair value | | | | (in thousands) | | Cash equivalents: | | | | | | | | | | | Money market funds | Level 1 | | $ | 345,555 | | | $ | — | | | $ | — | | | $ | 345,555 | | | Commercial paper | Level 2 | | 9,994 | | | — | | | (9) | | | 9,985 | | | Marketable securities: | | | | | | | | | | | U.S. treasury securities | Level 1 | | 426,734 | | | 697 | | | (188) | | | 427,243 | | | U.S. agency bonds | Level 2 | | 77,535 | | | 13 | | | (34) | | | 77,514 | | | Non-U.S. government securities | Level 2 | | 21,723 | | | 10 | | | (27) | | | 21,706 | | | Corporate bonds | Level 2 | | 94,725 | | | 310 | | | (81) | | | 94,954 | | | Certificates of deposit | Level 2 | | 2,810 | | | — | | | (1) | | | 2,809 | | | Commercial paper | Level 2 | | 187,596 | | | 148 | | | (24) | | | 187,720 | | | Total | | | $ | 1,166,672 | | | $ | 1,178 | | | $ | (364) | | | $ | 1,167,486 | |
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