| Cash Equivalents and Investments |
2. Cash Equivalents and Investments Cash equivalents and available-for-sale debt securities consisted of the following as of the periods presented below (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | March 31, 2026 | | Amortized Cost | | Unrealized Gains | | Unrealized Losses | | Fair Value | | Cash equivalents: | | | | | | | | | Money market funds | $ | 359,980 | | | $ | — | | | $ | — | | | $ | 359,980 | | | U.S. treasury securities | 50,133 | | | — | | | (2) | | | 50,131 | | | U.S. government agency securities | 17,421 | | | — | | | (1) | | | 17,420 | | Commercial paper | 10,242 | | | — | | | — | | | 10,242 | | Fixed deposits | 39,578 | | | — | | | — | | | 39,578 | | | Total cash equivalents | 477,354 | | | — | | | (3) | | | 477,351 | | | Debt securities: | | | | | | | | | U.S. treasury securities | 96,273 | | | 11 | | | (18) | | | 96,266 | | | U.S. government agency securities | 17,389 | | | 4 | | | (9) | | | 17,384 | | | Corporate debt securities | 25,977 | | | 4 | | | (13) | | | 25,968 | | Commercial paper | 5,274 | | | — | | | — | | | 5,274 | | Certificates of deposit | 86,177 | | | — | | | — | | | 86,177 | | | Total debt securities | 231,090 | | | 19 | | | (40) | | | 231,069 | | | Total cash equivalents and debt securities | $ | 708,444 | | | $ | 19 | | | $ | (43) | | | $ | 708,420 | |
| | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2025 | | Amortized Cost | | Unrealized Gains | | Unrealized Losses | | Fair Value | | Cash equivalents: | | | | | | | | | Money market funds | $ | 120,923 | | | $ | — | | | $ | — | | | $ | 120,923 | | | U.S. treasury securities | 100,235 | | | 16 | | | — | | | 100,251 | | | U.S. government agency securities | 26,168 | | | 3 | | | (1) | | | 26,170 | | | Corporate debt securities | 47,466 | | | — | | | — | | | 47,466 | | | Fixed deposits | 129,875 | | | — | | | — | | | 129,875 | | | Total cash equivalents | 424,667 | | | 19 | | | (1) | | | 424,685 | | | Debt securities: | | | | | | | | | U.S. treasury securities | 131,286 | | | 102 | | | (9) | | | 131,379 | | | U.S. government agency securities | 30,868 | | | 40 | | | — | | | 30,908 | | | Corporate debt securities | 36,878 | | | 69 | | | (6) | | | 36,941 | | Commercial paper | 12,369 | | | — | | | — | | | 12,369 | | | | | | | | | | | Total debt securities | 211,401 | | | 211 | | | (15) | | | 211,597 | | | Total cash equivalents and debt securities | $ | 636,068 | | | $ | 230 | | | $ | (16) | | | $ | 636,282 | |
The following table presents gross unrealized losses and fair values for the securities that were in a continuous unrealized loss position as of the periods presented below (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | March 31, 2026 | | Less than 12 months | | Greater than 12 months | | Total | | Fair Value | | Unrealized Loss | | Fair Value | | Unrealized Loss | | Fair Value | | Unrealized Loss | | U.S. treasury securities | $ | 69,813 | | | $ | (18) | | | $ | — | | | $ | — | | | $ | 69,813 | | | $ | (18) | | | U.S. government agency securities | 8,715 | | | (9) | | | — | | | — | | | 8,715 | | | (9) | | | Corporate debt securities | 20,957 | | | (13) | | | — | | | — | | | 20,957 | | | (13) | | | Total | $ | 99,485 | | | $ | (40) | | | $ | — | | | $ | — | | | $ | 99,485 | | | $ | (40) | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2025 | | Less Than 12 Months | | 12 Months or Greater | | Total | | Fair Value | | Unrealized Loss | | Fair Value | | Unrealized Loss | | Fair Value | | Unrealized Loss | | U.S. treasury securities | $ | 21,500 | | | $ | (9) | | | $ | — | | | $ | — | | | $ | 21,500 | | | $ | (9) | | | | | | | | | | | | | | | Corporate debt securities | 7,495 | | | (6) | | | — | | | — | | | 7,495 | | | (6) | | | Total | $ | 28,995 | | | $ | (15) | | | $ | — | | | $ | — | | | $ | 28,995 | | | $ | (15) | |
The amortized cost and fair value of the available-for-sale debt securities based on contractual maturities are as follows (in thousands): | | | | | | | | | | | | | | | | | March 31, 2026 | | | | Amortized Cost | | Fair Value | | | | | | Due within one year | $ | 214,598 | | | $ | 214,596 | | | | | | | Due after one year but within five years | 16,492 | | | 16,473 | | | | | | | Total | $ | 231,090 | | | $ | 231,069 | | | | | |
Accrued interest receivable of $1.1 million and $1.5 million was classified in prepaid expenses and other current assets in the condensed consolidated balance sheet as of March 31, 2026 and December 31, 2025, respectively.
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