8.Cash, Cash Equivalents, Restricted Cash, and Short-Term Investments

Cash, cash equivalents, restricted cash, and short-term investments for the periods presented consist of the following (in thousands):

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Cash equivalents and short-term investments include the following securities with gross unrealized gains and losses (in thousands):

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As of March 31, 2025 and December 31, 2024, our cash equivalents and short-term investments had a weighted-average time to maturity of approximately 98 days and 69 days, respectively. Our short-term investments are classified as available-for-sale securities. Accordingly, we have classified these securities as short-term investments on our condensed balance sheets as they are available for use in the current operations. As of March 31, 2025, a total of 19 individual securities had been in an unrealized loss position for 12 months or less, and the losses were determined to be temporary. We regularly review the securities in an unrealized loss position and evaluate the current expected credit loss by considering factors such as historical experience, market data, issuer-specific factors, and current economic conditions. We have not recognized any credit losses as of March 31, 2025 and December 31, 2024.

The following table shows the fair value and gross unrealized losses of our investments in individual securities that are in an unrealized loss position, aggregated by investment category (in thousands):

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