| Schedule of Fair Value, Assets Measured on Recurring Basis |
The following tables summarize information about our cash, cash equivalents, and investments by investment category as of April 30, 2024 and January 31, 2024 (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of April 30, 2024 | | Fair Value Level | | Amortized Cost | | Gross Unrealized Gains | | Gross Unrealized Losses | | Estimated Fair Value | | Assets | | | | | | | | | | | Cash and cash equivalents: | | | | | | | | | | | Cash | Level 1 | | $ | 93,033 | | | $ | — | | | $ | — | | | $ | 93,033 | | | Money market funds | Level 1 | | 105,683 | | | — | | | — | | | 105,683 | | | | | | | | | | | | | | | | | | | | | | | Total cash and cash equivalents | | | $ | 198,716 | | | $ | — | | | $ | — | | | $ | 198,716 | | | Short-term investments: | | | | | | | | | | | U.S. Treasury securities | Level 1 | | $ | 187,909 | | | $ | — | | | $ | (586) | | | $ | 187,323 | | | | | | | | | | | | | Corporate notes and bonds | Level 2 | | 232,901 | | | 1 | | | (960) | | | 231,942 | | | U.S. agency securities | Level 2 | | 155,802 | | | 2 | | | (581) | | | 155,223 | | | Total short-term investments | | | $ | 576,612 | | | $ | 3 | | | $ | (2,127) | | | $ | 574,488 | | | Long-term investments: | | | | | | | | | | | U.S. Treasury securities | Level 1 | | $ | 86,966 | | | $ | — | | | $ | (246) | | | $ | 86,720 | | | | | | | | | | | | | Corporate notes and bonds | Level 2 | | 151,624 | | | 8 | | | (623) | | | 151,009 | | | U.S. agency securities | Level 2 | | 80,591 | | | — | | | (260) | | | 80,331 | | | Total long-term investments | | | $ | 319,181 | | | $ | 8 | | | $ | (1,129) | | | $ | 318,060 | | | | | | | | | | | | | Total assets measured at fair value | | | $ | 1,094,509 | | | $ | 11 | | | $ | (3,256) | | | $ | 1,091,264 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As of January 31, 2024 | | Fair Value Level | | Amortized Cost | | Gross Unrealized Gains | | Gross Unrealized Losses | | Estimated Fair Value | | Assets | | | | | | | | | | | Cash and cash equivalents: | | | | | | | | | | | Cash | Level 1 | | $ | 43,925 | | | $ | — | | | $ | — | | | $ | 43,925 | | | Money market funds | Level 1 | | 204,481 | | | — | | | — | | | 204,481 | | | Certificates of deposit | Level 2 | | 8,245 | | | — | | | — | | | 8,245 | | | | | | | | | | | | | | | | | | | | | | | Total cash and cash equivalents | | | $ | 256,651 | | | $ | — | | | $ | — | | | $ | 256,651 | | | Short-term investments: | | | | | | | | | | | U.S. Treasury securities | Level 1 | | $ | 234,776 | | | $ | — | | | $ | (1,053) | | | $ | 233,723 | | | | | | | | | | | | | Corporate notes and bonds | Level 2 | | 279,248 | | | 12 | | | (1,068) | | | 278,192 | | | U.S. agency securities | Level 2 | | 157,873 | | | 18 | | | (501) | | | 157,390 | | | Total short-term investments | | | 671,897 | | | 30 | | | (2,622) | | | 669,305 | | | Long-term investments: | | | | | | | | | | | U.S. Treasury securities | Level 1 | | $ | 27,175 | | | $ | 121 | | | $ | — | | | $ | 27,296 | | | | | | | | | | | | | Corporate notes and bonds | Level 2 | | 69,970 | | | 279 | | | (67) | | | 70,182 | | | U.S. agency securities | Level 2 | | 90,924 | | | 303 | | | (48) | | | 91,179 | | | Total long-term investments | | | $ | 188,069 | | | $ | 703 | | | $ | (115) | | | $ | 188,657 | | | | | | | | | | | | | Total assets measured at fair value | | | $ | 1,116,617 | | | $ | 733 | | | $ | (2,737) | | | $ | 1,114,613 | |
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