| Fair Value Measurements |
Note 5. Fair Value Measurements The following tables show financial assets and liabilities measured at fair value on a recurring basis and the level of inputs used in such measurements as of December 31, 2023 and 2022 (in thousands):
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December 31, 2023 |
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Adjusted Cost |
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Unrealized Gains |
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Unrealized Losses |
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Fair Value |
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Fair Value Level |
Assets |
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Cash and cash equivalents: |
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Cash |
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$ |
3,649 |
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$ |
— |
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$ |
— |
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$ |
3,649 |
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Money market funds |
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14,968 |
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— |
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— |
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14,968 |
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Level 1 |
Commercial paper |
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34,416 |
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— |
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(18 |
) |
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34,398 |
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Level 2 |
U.S. agency securities |
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1,985 |
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1 |
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— |
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1,986 |
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Level 2 |
U.S. government securities |
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1,983 |
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— |
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— |
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1,983 |
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Level 2 |
Total cash and cash equivalents |
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57,001 |
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1 |
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(18 |
) |
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56,984 |
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Short-term investments: |
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Commercial paper |
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495 |
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— |
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— |
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495 |
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Level 2 |
U.S. agency securities |
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1,976 |
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— |
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— |
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1,976 |
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Level 2 |
U.S. government securities |
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54,720 |
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7 |
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(3 |
) |
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54,724 |
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Level 2 |
Total short-term investments |
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57,191 |
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7 |
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(3 |
) |
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57,195 |
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Total assets measured at fair value |
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$ |
114,192 |
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$ |
8 |
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$ |
(21 |
) |
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$ |
114,179 |
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December 31, 2022 |
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Adjusted Cost |
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Unrealized Gains |
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Unrealized Losses |
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Fair Value |
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Fair Value Level |
Assets |
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Cash and cash equivalents: |
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Cash |
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$ |
5,615 |
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$ |
— |
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$ |
— |
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$ |
5,615 |
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Money market funds |
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31,401 |
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— |
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— |
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31,401 |
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Level 1 |
Commercial paper |
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47,135 |
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— |
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(15 |
) |
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47,120 |
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Level 2 |
U.S. government securities |
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4,991 |
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1 |
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— |
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4,992 |
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Level 2 |
Total cash and cash equivalents |
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89,142 |
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1 |
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(15 |
) |
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89,128 |
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Short-term investments: |
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Commercial paper |
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13,097 |
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— |
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(51 |
) |
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13,046 |
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Level 2 |
U.S. agency securities |
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9,445 |
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— |
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(105 |
) |
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9,340 |
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Level 2 |
U.S. government securities |
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56,658 |
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1 |
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(515 |
) |
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56,144 |
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Level 2 |
Total short-term investments |
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79,200 |
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1 |
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(671 |
) |
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78,530 |
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Total assets measured at fair value |
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$ |
168,342 |
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$ |
2 |
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$ |
(686 |
) |
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$ |
167,658 |
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Marketable debt securities at December 31, 2023 have maturities due in less than 12 months. No security has been in a continuous unrealized loss position for more than 12 months and the Company does not consider any of its marketable debt securities to be impaired. Tempus Warrants The Black-Scholes option-pricing model was used to estimate fair value of the warrants issued to Tempus AI, Inc. (formerly known as Tempus Labs, Inc., and referred to herein as "Tempus") at the date of issuance, November 28, 2023, and at each subsequent balance sheet date. Assumptions used are listed below, which are Level 3 fair value inputs. Expected term is equal to the remaining contractual periods of each of the two warrants. Expected volatility was based on the Company's actual historical volatility over the expected terms of the warrants. The risk-free interest rate was based on the U.S. Treasury yield curve over the expected term of the warrants. Refer to Note 8 for further information about the warrants issued to Tempus.
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As of November 28, 2023 |
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As of December 31, 2023 |
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Expected term (in years) |
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1.09 - 2.09 |
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1.00 - 2.00 |
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Volatility |
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99.04 - 105.44% |
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102.55 - 108.46% |
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Risk-free interest rate |
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4.73 - 5.21% |
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4.23 - 4.79% |
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Dividend yield |
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–% |
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–% |
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Total fair value of Tempus Warrants (in thousands) |
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$ |
6,942 |
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$ |
10,027 |
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The following table sets forth a summary of the changes in fair value of the Company's Level 3 financial instruments (in thousands):
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Warrant
Liabilities |
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Balance — December 31, 2022 |
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$ |
— |
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Initial fair value of warrant liabilities upon issuance |
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6,942 |
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Change in fair value |
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3,085 |
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Balance — December 31, 2023 |
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$ |
10,027 |
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