| Schedule of amortized cost, gross unrealized holding gains and losses included in other comprehensive (loss) income and the fair value of the fixed income securities |
The amortized cost, gross unrealized holding gains and losses included in accumulated other comprehensive income and the fair value of the fixed income securities as of June 30, 2025 and December 31, 2024 are presented in the tables below (in thousands): | | | | | | | | | | | | | | | | June 30, 2025 | | | | Amortized | | Unrealized | | Unrealized | | Fair | | | | Cost | | Gains | | Losses | | Value | | Cash equivalents: | | | | | | | | | | | | | | Money market funds | | $ | 23,697 | | $ | — | | $ | — | | $ | 23,697 | | Cash equivalents | | $ | 23,697 | | $ | — | | $ | — | | $ | 23,697 | | Available-for-sale investments-short-term: | | | | | | | | | | | | | | U.S. treasury securities | | $ | 368,519 | | $ | 73 | | $ | (36) | | $ | 368,556 | | Available-for-sale investments – short-term | | $ | 368,519 | | $ | 73 | | $ | (36) | | $ | 368,556 | | Available-for-sale investments-long-term: | | | | | | | | | | | | | | U.S. treasury securities | | $ | 145,806 | | $ | 97 | | $ | — | | $ | 145,903 | | Available-for-sale investments – long-term | | $ | 145,806 | | $ | 97 | | $ | — | | $ | 145,903 | |
| | | | | | | | | | | | | | | December 31, 2024 | | | Amortized | | Unrealized | | Unrealized | | Fair | | | Cost | | Gains | | Losses | | Value | Cash equivalents: | | | | | | | | | | | | | Money market funds | | $ | 29,806 | | $ | — | | $ | — | | $ | 29,806 | U.S. treasury security | | | 24,835 | | | — | | | — | | | 24,835 | Cash equivalents | | $ | 54,641 | | $ | — | | $ | — | | $ | 54,641 | Available-for-sale investments-short-term: | | | | | | | | | | | | | U.S. treasury securities | | $ | 124,352 | | $ | 69 | | $ | (1) | | $ | 124,420 | Available-for-sale investments – short-term | | $ | 124,352 | | $ | 69 | | $ | (1) | | $ | 124,420 | Available-for-sale investments-long-term: | | | | | | | | | | | | | U.S. treasury security | | $ | 25,059 | | $ | 9 | | $ | — | | $ | 25,068 | Available-for-sale investments – long-term | | $ | 25,059 | | $ | 9 | | $ | — | | $ | 25,068 |
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