Note 7 - Financial Instruments The Company’s assets that are measured at fair value on a recurring basis consist of the following: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | September 30, 2026 | | | Level | | Cost | | Unrealized Gain | | Unrealized Loss | | Fair Value | | | Cash and cash equivalents | | | | | | | | | | | | Cash | I | | $ | 26,058 | | | $ | — | | | $ | — | | | $ | 26,058 | | | | Money market funds | I | | 21,635 | | | — | | | — | | | 21,635 | | | | Government securities | I | | 3,601 | | | — | | | — | | | 3,601 | | | | | | | | | | | | | | | Marketable securities | | | | | | | | | | | | | | | | | | | | | | | Government securities | II | | 38,508 | | | — | | | (21) | | | 38,487 | | | | Corporate debt securities | II | | 74 | | | — | | | — | | | 74 | | | | Prepaid expenses and other current assets | | | | | | | | | | | | Restricted cash | I | | 521 | | | — | | | — | | | 521 | | | | Restricted cash in money market funds | I | | 34 | | | — | | | — | | | 34 | | | | Other assets | | | | | | | | | | | | Restricted cash | I | | 1,393 | | | — | | | — | | | 1,393 | | | | Restricted cash in money market funds | I | | 145 | | | — | | | (1) | | | 144 | | | | Long-term government securities | II | | 286 | | | — | | | (3) | | | 283 | | | | Long-term corporate debt securities | II | | 14 | | | — | | | — | | | 14 | | | | Total | | | $ | 92,269 | | | $ | — | | | $ | (25) | | | $ | 92,244 | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2025 | | | Level | | Cost | | Unrealized Gain | | Unrealized Loss | | Fair Value | | | Cash and cash equivalents | | | | | | | | | | | | Cash | I | | $ | 3,408 | | | $ | — | | | $ | — | | | $ | 3,408 | | | | Money market funds | I | | 21,339 | | | — | | | — | | | 21,339 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prepaid expenses and other current assets | | | | | | | | | | | | Restricted cash | I | | 30 | | | — | | | — | | | 30 | | | | Money market funds | I | | 152 | | | — | | | — | | | 152 | | | | Other assets | | | | | | | | | | | | Restricted cash | I | | 182 | | | — | | | — | | | 182 | | | | Restricted cash in money market funds | I | | 13 | | | — | | | — | | | 13 | | | | | | | | | | | | | | | | | | | | | | | | | | Total | | | $ | 25,124 | | | $ | — | | | $ | — | | | $ | 25,124 | | |
As of September 30, 2026 and December 31, 2025, the Company also held 18,712 units of Bitcoin with a cost basis of $661 million and fair value of $1,573 million and $1,637 million, respectively. The fair value of these digital assets is determined using Level I in the fair value hierarchy.
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