Fair Value Measurements
The Company values its available-for-sale securities and certain liabilities based on the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. In order to increase consistency and comparability in fair value measurements, a fair value hierarchy that prioritizes observable and unobservable inputs is used to measure fair value into three broad levels, which are described below:
Level 1 – Quoted prices (unadjusted) in active markets that are accessible at the measurement date for identical assets or liabilities. The fair value hierarchy gives the highest priority to Level 1 inputs.
Level 2 – Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in inactive markets or model-derived valuations in which all significant inputs are observable or can be derived principally from or corroborated with observable market data.
Level 3 – Unobservable inputs are used when little or no market data is available. The fair value hierarchy gives the lowest priority to Level 3 inputs.
In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs to the extent possible. In addition, the Company considers counterparty credit risk in its assessment of fair value.
The asset or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs.
The following is a description of the valuation methodologies used for certain assets and liabilities measured at fair value, which are not considered Level 1 items.
Corporate bonds – Valued at the closing price reported on the active market on which the individual securities, all of which have counterparts with high credit ratings, are traded.
Commercial paper – Value is based on yields currently available on comparable securities of issuers with similar credit ratings.
Money market funds – Valued at the net asset value (“NAV”) of units of a collective fund. The NAV is used as a practical expedient to estimate fair value. This practical expedient is not used when it is determined to be probable that the fund will sell the investment for an amount different than the reported NAV.
The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Company believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.
The contractual maturities of investments classified as marketable securities are as follows as of December 31, 2025 and 2024: | | | | | | | | | | | |
| As of December 31, |
| 2025 | | 2024 |
| Due within 1 year | $ | 416,764 | | | $ | 365,655 | |
| Due within 2 years | 197,675 | | | 176,950 | |
| Total marketable securities | $ | 614,439 | | | $ | 542,605 | |
The following table represents the amortized cost, gross unrealized gains and losses, and fair market value of the Company’s marketable securities by significant investment category in addition to their fair value level at December 31, 2025 and 2024:
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| For the Year Ended December 31, 2025 |
| Amortized Cost | | Gross Unrealized Gains | | Gross Unrealized Losses | | Fair Value | | Level |
| Commercial paper | $ | 12,753 | | | $ | 5 | | | $ | (1) | | | $ | 12,757 | | | 2 | |
| U.S. Treasuries | 107,090 | | | 153 | | | (31) | | | 107,212 | | | 1 | |
| Corporate bonds | 304,964 | | | 796 | | | (60) | | | 305,700 | | | 2 | |
| Money market funds measured at NAV (a) | 188,770 | | | — | | | — | | | 188,770 | | | N/A |
| Total marketable securities | $ | 613,577 | | | $ | 954 | | | $ | (92) | | | $ | 614,439 | | | |
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| For the Year Ended December 31, 2024 |
| Amortized Cost | | Gross Unrealized Gains | | Gross Unrealized Losses | | Fair Value | | Level |
| Commercial paper | $ | — | | | $ | — | | | $ | — | | | $ | — | | | 2 | |
| U.S. Treasuries | 188,974 | | | 99 | | | (108) | | | 188,965 | | | 1 | |
| Corporate bonds | 299,637 | | | 571 | | | (333) | | | 299,875 | | | 2 | |
| Money market funds measured at NAV (a) | 53,765 | | | — | | | — | | | 53,765 | | | N/A |
| Total marketable securities | $ | 542,376 | | | $ | 670 | | | $ | (441) | | | $ | 542,605 | | | |
(a)Money market funds that were measured at NAV per share (or its equivalent) have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the line items presented in the consolidated balance sheets.
Of the total marketable securities held at fair value as of December 31, 2025, $1,994 was in a continuous unrealized loss for 12 months or longer. The Company had no continuous unrealized loss position from marketable securities as of December 31, 2025 or December 31, 2024 that was as a result of a credit deterioration. For the periods presented the Company does not intend to or will be required to sell these securities before recovery of their amortized cost bases.